WO2017020865A1

WO2017020865A1 - Fastening connector component and structure, removing method, track structure, crankshaft connecting mechanism, frame connecting apparatus, and frame connecting method

Info

Publication number: WO2017020865A1
Application number: PCT/CN2016/093763
Authority: WO
Inventors: 杨东佐
Original assignee: 杨东佐
Priority date: 2015-08-06
Filing date: 2016-08-05
Publication date: 2017-02-09
Also published as: WO2017020286A1; WO2017020866A1; WO2017020864A1; CN106438638A; CN106218322A; CN206429508U; CN106438637A; WO2017020871A1; WO2017020872A1; CN106246698A

Abstract

A fastening connector structure comprising a parent (1), an attachment (2), a fastening connector component. The fastening connector component comprises a threaded bolt (5), a fastening nut (6), and a rotation-stopping sleeve (7). The threaded rod (5) runs through the parent (1) and the attachment (2) to be threadedly connected with the fastening nut (6). An extraction structure for extracting the rotation-stopping sleeve (7) from a first rotation-stopping hole (10) is provided on the periphery of the rotation-stopping sleeve (7) mounted within the first rotation-stopping hole (10) protruding the fastening nut (6). The rotation-stopping sleeve (7) is mounted on the exterior of the threaded rod (5) and within the first rotation-stopping hole (10) and is axially limited. A first rotation-stopping part (11) on the wall of the first rotation-stopping hole (10) of the fastening nut (6) fits a second rotation-stopping part (13) at the periphery of the rotation-stopping sleeve (7) to restrain rotation of the fastening nut (6) relative to the rotation-stopping sleeve (7). A third rotation-stopping part (14) on the wall of a first rotation-stopping through hole (12) of the rotation-stopping sleeve (7) fits a fourth rotation-stopping part (19) of the threaded rod (5) to restrain rotation of the rotation-stopping sleeve (7) relative to the threaded rod (5). The threaded rod (5) is non-rotatably mounted together with the fastening nut (6). The fastening nut (6) does not rotate in reverse and come loose relative to the threaded rod (5). The rotation-stopping sleeve (7) can be extracted conveniently, quickly, and reliably from the first rotation-stopping hole (10).

Description

Fastening connection assembly and structure, disassembly method, track structure, crankshaft linkage mechanism, bone connecting device and bone connecting method

Technical field:

The invention relates to a fastening connection technology of a thread pair mechanically coupling two or more objects; in particular, a mechanical static connection of a crankshaft linkage mechanism, a track structure, an aircraft, a ship, a device, an aerospace equipment, Fastening connection components, fastening connections and connections for mechanical parts on key parts of aircraft, spacecraft, rockets, engines, nuclear reactors, trains, high-speed rail, railroad tracks, steel structures, steel bridges, automobiles, etc. Methods and disassembly methods, the use environment of these mechanical parts is particularly harsh, such as large vibration, high temperature environment, large load, etc., and the connection reliability of the mechanical connection of the thread pair is particularly high.

Background technique

Threaded sub-mechanical static joints between objects have some bolts broken at key parts, safety problems caused by failure of threaded connections and safety accidents, which are often encountered in the world, and are a common problem faced by technicians in the field. Solve the problem that has not been solved. Small bolts, large accidents, and frequent major accidents due to bolt breakage, such as the collapse of the connecting rod bolts of the engine of the automobile; the accident of 1 death and 4 injuries caused by the break of the bolts of Harbin tower crane on April 18, 2009; Taiwan's media reported that the No. 1 reactor of the No. 2 Plant of the Nuclear Power Plant detected 7 anchor bolt breaks and damages that may cause nuclear safety accidents; the guidance of the No. 5 cockpit support system occurred at 16:45 on June 29, 2012 Fatigue fracture of stud bolts caused a serious safety accident in which 6 people were killed and 10 people were injured in the "Space Trek" entertainment project in OCT East Shenzhen. As a representative manufacturer of high-end vehicles, the BMW engine was broken due to technical problems that could not solve the screw break. The loss of power and flameout at the moment of the break led to the recall of 230,000 vehicles (BMW (China) Automobile Trading Co., Ltd., BMW Brilliance Automotive Co., Ltd. decided to recall 230,000 vehicles since June 18, 2014), and the manufacturer suffered huge economic losses. And the loss of goodwill, more serious is the safety of the owner's life and property. Although in many cases, especially in the state of vibration, it is often necessary to regularly repair and reinforce the already tightened fastening joints to prevent the safety of accidental loosening or even looseness of the thread pair. There are many security incidents caused by the failure of the connection, and the examples are numerous.

The reliability of the threaded connection is ensured by the self-locking of the friction of the thread pair and the friction between the contact faces of the thread pair. In general, the connecting thread has a certain self-locking property and does not automatically loosen under static load conditions. However, due to the working conditions of the connection, there are inevitably impacts, vibrations, and load changes. Under these conditions, the friction between the pairs of threads will disappear or decrease instantaneously; at the same time, in the case of high temperature or temperature changes, the material will creep and stress relaxation, and the friction will be reduced. Under multiple actions, the threaded connection is gradually released.

The main reason for the failure of the threaded connection is that the thread is loose due to the reduction of the pre-tightening force. Therefore, the essence of the threaded connection is to prevent the reverse rotation of the thread pair (that is, the reverse between the threaded hole and the external threaded portion). Such as the reverse between the bolt and the lock nut.

The existing mechanical mechanical anti-loosening methods mainly include mechanical anti-loose methods such as a split pin, a stop pad and a string wire rope. Many of the aircraft are now also using the anti-loose method of the series wire rope.

In order to prevent loose thread connections, people have been working tirelessly.

U.S. Patent No. 1,755,807, filed on Apr. 6, 1 s, filed on Apr. Turn the sleeve. The lock nut is provided with a threaded through hole and an internal gear-shaped rotation stop hole communicating therewith, and the minimum hole diameter of the rotation stop hole is larger than the diameter of the threaded through hole. The rotation preventing sleeve is provided with a rotation preventing through hole, and the outer circumference of the rotation preventing sleeve is an outer gear shape, and a rotation preventing strip is arranged on the wall of the rotation preventing through hole, and a rotation preventing groove is matched with the rotation preventing strip on the screw. The outer gear-shaped outer circumference of the anti-rotation sleeve and the gear-shaped hole wall of the lock nut rotation-stop hole cooperate with the constraint lock nut to rotate relative to the rotation sleeve, and the rotation sleeve of the rotation sleeve is inserted into the rotation groove of the screw to restrain the screw relative to the rotation sleeve Rotating, so the screw and the lock nut are mounted non-rotatably. In this patent, since the rotation sleeve is completely accommodated in the rotation preventing hole of the lock nut, the rotation sleeve is difficult to be taken out from the rotation hole of the lock nut; and during the use of the screw and the lock nut, The rotation sleeve, the screw and the lock nut are rusted, the dust enters between the rotation sleeve and the screw and the lock nut, and the mutual penetration of the rotation sleeve and the screw and the lock nut causes the generation between the rotation sleeve and the screw lock nut. A large bite force, resulting in the rotation of the sleeve cannot be removed from between the screw and the lock nut. If the sleeve is difficult or impossible to remove from the screw and the lock nut, it is difficult or impossible to separate the lock nut from the screw, thus losing the use of the threaded pair connection in order to facilitate the screw and the lock nut. The most basic use of separation, and thus the screw and lock nut structure is of little use value.

Patent application No. ZL201510198765.5, application publication number is CN 104819197A, application date is April 24, 2015, and publication date is August 6, 2015. The anti-loose lock nut connection structure includes connection. And the screw passing through the connecting member, the screw on the screw is screwed to tighten the connecting member, the outer side of the locking nut is sleeved with a anti-loose ferrule, and the anti-rotation structure between the anti-loose ferrule and the connecting member is anti-rotation The structure includes a sinking groove corresponding to the lock nut on the connecting piece, and the lock The bottom of the tightening nut is arranged in the sinking groove, and the outer ring of the anti-loose ring is provided with a chuck, and the inner side wall of the sinking groove is provided with a card slot for the chuck to be inserted; the height of the anti-loose ring is smaller than the height of the sinking groove, There is an interference fit between the loose ferrule and the lock nut and the sinker. The anti-loose lock nut connecting structure of the invention has a anti-rotation ferrule and a anti-rotation structure between the anti-loose ferrule and the connecting member, and the inner ring of the anti-loose ferrule is a positive hexagonal joint with the lock nut The shape structure, the inner ring of the anti-loose ferrule and the lock nut cannot rotate relative to each other, and the anti-rotation structure prevents the anti-loose ferrule from rotating relative to the connecting member, thereby preventing loosening of the lock nut after fastening. The anti-loose lock nut connecting structure realizes preventing the loosening of the lock nut, but on the one hand, the height of the anti-loose ferrule is smaller than the height of the sinking groove, and the anti-loose ferrule is separated from the lock nut and the sinking groove. When the anti-loose lock nut connection structure is disassembled, the anti-loose and anti-loose ferrule cannot be taken out from the sinking groove, and the anti-loose and anti-loose ferrule cannot be taken out, so that the lock nut and the screw cannot be separated, so they are lost. The use of a threaded secondary connection is the most basic use for the purpose of easily separating the screw and the lock nut, and thus the structure does not make any sense; on the other hand, the inner side wall of the sinker is provided with a chuck for the chuck. The card slot structure cannot be machined. If it is not formed with the connected component beforehand, it needs to be processed by electric spark or the like, so the use cost is particularly high; and if the screw is not stopped, the screw is not screwed. Relative to the lock nut will still rotate, only the lock nut stop rotation does not have any practical significance. The above various reasons will make those skilled in the art believe that the technical solution of the invention has no use value, and greatly hinders the enthusiasm of those skilled in the art to improve the technical solution of the patent.

In the invention patent of the patent number ZL97112246.6, the publication date is 97112246.6, a lock lock nut is disclosed, which comprises a tool mounting portion and an annular protrusion projecting upwardly coaxially therewith, with a threaded hole penetrating therethrough. This anti-loose lock nut is the HardLock lock nut, which is the only loose nut in the world. It is the president of Hadlock Industrial Co., Ltd., who spent nearly 20 years, through continuous technology. The technical results of the improvement and research have been applied more on the high-speed rail. When the high-speed rail is in operation, the trains and rails at high speed are constantly in contact, and the vibration generated is very large. The general screws will be shaken and shaken in this vibration. If you don't want to be shocked, you need the screws and the lock nut to get into the buckle, never loose. This requirement seems simple, but it is not easy to satisfy it. The high-speed rail represents China's creation, but it uses the Japanese lock nut. Therefore, the media issued a sigh similar to the gap between Chinese manufacturing and Japanese manufacturing from a lock nut. However, the manufacturing process of the lock nut is very complicated, and the manufacturing precision is extremely high. The present situation is that there are product drawings and products, and there is no unique technology and know-how of the Hadlock company, but it cannot be manufactured, and thus it is expensive. A minimum of tens of dollars; this kind of lock nut can not be completely loose, but the anti-loose effect in the existing anti-loose lock nut is very good; this lock nut, repeated dozens of times Can not be used later.

Patent No. ZL201520399393.8 discloses a self-tightening lock nut and bolt fastener. The fastener includes a self-tightening nut body, a self-tightening washer and a common bolt; a self-tightening lock nut The contact surface of the body and the self-tightening washer is a smooth transition spiral surface; the self-tightening lock nut body is screwed with the common bolt; the bolt fastener includes a self-tightening bolt, a self-tightening washer and a common lock nut; the ordinary lock nut and the self-locking nut Tight bolt threaded connection. The self-tightening lock nut and the bolt fastener adopt a self-tightening principle, and a self-tightening structure is arranged on the lock nut or the bolt to make the self-tightening effect after the locking, so that the lock nut is no longer displaced. Or loose. This kind of self-locking nut, also known as the self-tightening king lock nut and the never-locking lock nut, and claims that its anti-loose ability exceeds the hardlock lock nut, has been reported in CCTV. Since the lock nut is not widely used, its anti-loosening effect cannot be judged.

In the U.S. Patent No. US Pat. No. 1,755,807, filed on Apr. 6, 1 s., the disclosure of the patent application No. s. In the Chinese invention patent of April 24, 2015, the technical solution of the rotation sleeve was limited to limit the rotation of the lock nut. After eighty-six years, it was not solved that the bolt and the lock nut could be prevented from being loosened by the rotation sleeve. Or use the anti-rotation sleeve to lock the bolt and the lock nut, and it is convenient, quick and reliable to remove the rotation sleeve from the rotation preventing hole to remove the bolt and the lock nut. The existing hardlock lock nut and self-tightening lock nut, which are considered to have good anti-loose effect, do not prevent the lock nut from rotating by using the anti-rotation sleeve to prevent the lock nut from rotating; the fast century has passed, and there is no By using the anti-rotation sleeve to prevent the lock nut from rotating, the technical application of the bolt lock nut is prevented. It can be seen that people are trapped in the use of the anti-rotation sleeve to prevent the lock nut from rotating to realize the bolt lock nut, but the bolt lock The technical misunderstanding that the tightening nut is difficult or impossible to disassemble forms a technique of using the anti-rotation sleeve to prevent the rotation of the lock nut to realize the looseness of the bolt locking nut, thereby preventing the use of the technicians in the field. The cockroach sleeve prevents the lock nut from rotating to achieve the enthusiasm of the bolt lock nut to prevent loosening

Summary of the invention

In view of the problems in the prior art, the technical problem to be solved by the present invention is to overcome the prior art that the use of the anti-rotation sleeve limits the rotation of the lock nut relative to the screw to achieve the reverse rotation of the bolt lock nut. The anti-loose technical solution, because the rotary sleeve is difficult or impossible to remove from the first to-stop hole, resulting in the inertial thinking of the fastening connection component, and the use of the anti-rotation sleeve to limit the rotation of the lock nut relative to the screw The screw lock nut can not be rotated relative to each other, so that the screw lock nut is not loosened by the reverse rotation and the rotation sleeve is taken out from the first rotation stop hole quickly, conveniently and reliably, thereby making the screw and the lock Fast, convenient and reliable fastening assembly and structure, disassembly method, track structure, crankshaft linkage, bone connection device and bone connection method.

A fastening connection assembly comprises a screw and a lock nut; the screw is provided with a resisting portion and a first external thread portion; the resisting portion radially protrudes from the first external thread portion; further comprises a rotation preventing sleeve; the lock nut is provided a threaded through hole and a first rotation stop hole communicating with the threaded through hole, the minimum hole diameter of the first rotation stop hole being larger than the maximum hole diameter of the threaded through hole; the first hole rotation hole is provided with a circumferentially evenly arranged six holes The first axial rotation stop of the rotation sleeve; the outer circumference of the rotation sleeve is provided with a second rotation stop portion that is matched with the first rotation stop portion and uniformly arranged in the circumferential direction; and the rotation prevention sleeve is provided with an axial rotation stop through hole a plurality of axial third rotation preventing portions are disposed on the hole wall of the through hole; the outer circumference of the rotation preventing sleeve provided with the second rotation preventing portion is matched with the hole wall of the first rotation preventing hole of the lock nut; The thickness of the rotary sleeve is greater than the depth of the first rotation preventing hole, and the outer circumference of the rotation preventing sleeve protruding from the locking nut installed in the first rotation preventing hole is provided with a take-out structure for taking out the rotation preventing sleeve from the first rotation preventing hole Providing a fourth rotation stop portion engaged with the third rotation preventing portion on the screw; the threaded through hole of the lock nut is threaded with the first external thread portion a fourth rotation stop portion of the screw is disposed in the first rotation stop hole of the lock nut, and the first rotation stop portion of the lock nut corresponds to the positional relationship of the fourth rotation stop portion of the screw; The outer end of the screw of the four rotation stop portion is disposed in the first rotation stop hole, and the rotation stop sleeve is axially restrained in the first rotation prevention hole; the first rotation stop portion and the second rotation rotation portion cooperate with the constraint lock nut The rotation sleeve is rotated, and the third rotation stop portion and the fourth rotation rotation portion cooperate to restrain the rotation of the rotation sleeve relative to the screw, and the screw and the lock nut are non-rotatably mounted together.

As an improvement, the take-up structure includes a take-up resisting portion disposed on the rotation preventing sleeve and radially protruding from the outer periphery of the rotation preventing sleeve provided with the second rotation preventing portion, and between the take-off resisting portion of the rotation preventing sleeve and the lock nut, The take-out space formed in the axial direction. The outer sleeve of the rotation sleeve can be smaller than or equal to the outer circumference of the lock nut, and is suitable for the case where the fastening assembly does not have too much space in the radial direction, and is particularly suitable for fastening the outer circumference of the connection assembly to be small. It is not appropriate for the swivel sleeve to protrude the lock nut radially.

As an improvement, the take-out structure comprises a take-up resisting portion disposed on the rotation preventing sleeve, radially protruding from the outer circumference of the rotation preventing sleeve provided with the second rotation preventing portion, and the removal abutting portion radially protruding the outer circumference of the locking nut and the lock nut The take-out space formed by the outer circumference.

In the axial direction, the retaining sleeve of the structure can only protrude from the lock nut, and only the take-off resisting portion of the anti-rotation sleeve can be used, and the fastening joint assembly is suitable for the case where the axial direction is not suitable for too many protruding attachments.

As an improvement, the take-out structure includes a take-out groove that is disposed on the rotation sleeve and axially protrudes from the lock nut; the groove wall of the take-out groove that is not provided with the second rotation stop portion forms a resisting portion, and the take-out groove forms a take-out space.

The outer sleeve of the rotation sleeve of the structure may be smaller than or equal to the inner circumference of the first rotation stop hole of the lock nut, and is suitable for fastening the connection assembly without too much space in the radial direction, and is particularly suitable for locking The outer circumference of the nut is particularly small, and the rotation sleeve is not suitable for protruding the first rotation hole of the lock nut.

As a modification, a rotation stop shaft that cooperates with the rotation preventing through hole is provided on an end surface of the first external thread portion facing away from the abutting portion, and the fourth rotation preventing portion is disposed at an outer circumference of the rotation preventing shaft; the maximum outer diameter of the rotation preventing shaft is less than or equal to the first The threaded bottom diameter of the external thread portion; the rotation preventing shaft is disposed in the first rotation preventing hole, and the rotation preventing sleeve is installed outside the rotation preventing shaft and placed in the first rotation preventing hole. The outer circumference of the rotation preventing shaft is an outer gear-shaped structure, or a spline-shaped structure, or a regular polygonal hole; the hole wall of the rotation preventing through hole of the rotation preventing sleeve is an inner gear-shaped hole that cooperates with the outer circumference of the rotation preventing shaft of the outer gear-shaped structure, Or a spline-shaped hole that fits the outer circumference of the rotation-recessing shaft of the spline-shaped structure, or a regular-polygon hole that fits the outer circumference of the rotation-recessing shaft of the regular polygonal structure, or two that fits the outer circumference of the rotation-recessing shaft of the regular polygonal structure The intersecting structure of more than the same regular polygonal holes and the degree of rotation of each adjacent two regular polygonal holes is 360° / the number of regular polygonal holes / the number of regular polygonal holes, so as to further ensure the connection of the bolt and the lock nut Preload. The fourth rotation stop portion is disposed on the outer circumference of the rotation preventing shaft, and the third rotation stop portion and the fourth rotation rotation portion are equally divided as much as possible in the case of satisfying the processing and the force, so as to ensure the locking of the screw and the lock nut. In the case of force, the screw is finely adjusted, and the positional relationship between the first rotation stop portion and the fourth rotation rotation portion on the screw is more easily matched, and the installation of the rotation sleeve is satisfied.

As a modification, the third rotation stop portion is one or more axial rotation preventing bars protruding from the hole wall of the rotation preventing through hole of the rotation preventing sleeve, and the fourth rotation preventing portion is disposed on the first external thread portion and stops rotating The axial rotation groove is matched with the rotation groove; the rotation stop groove is a groove formed by rolling, and is formed by rolling the first external thread portion of the screw; the rotation stop on the rotation sleeve extends into the screw The rotation of the sleeve is restrained relative to the screw in the groove. The fourth rotation stop portion is a rotation preventing groove provided on one end of the screw provided with the first external thread portion, and the rotation preventing groove on the screw is simultaneously rolled and rolled when the first external thread portion is clamped, and the screw of the structure is The universal standard part screw has the same cost, the cost is particularly low, and the formed rotation groove is not deformed and standard, and the thread of the first external thread portion is also standard.

As an improvement, the hole wall of the through hole is formed by a circular arc surface and a rotation stop plane connecting the circular arc surfaces; the third rotation stop portion is a rotation preventing sleeve on the hole wall of the through hole; the fourth rotation The portion is a screw rotation stop plane disposed on the first external thread portion and engaging with the rotation preventing plane of the rotation preventing sleeve; the rotation preventing plane of the rotation preventing sleeve and the screw rotation preventing plane cooperate to restrain the rotation of the rotation preventing sleeve relative to the screw. This kind of screw has good strength and low processing cost.

As a modification, the fourth rotation stop portion is a one or more axial rotation preventing grooves provided on the first external thread portion, the rotation preventing groove is a cutting tail groove, and the cross section is V-shaped, from the tail end of the screw to the resisting portion of the screw The third rotation stop portion is a rotation stop bar protruding from the hole wall of the rotation stop through hole, and the rotation stop bar forms a concave-convex fit with the rotation stop groove. The fourth rotation stop portion is a tail-type rotation stop groove, and the corresponding tail-cutting process can be used to form the cutting tail groove, and the existing tail cutting screw can also be used, and the cost is low.

As an improvement, the fastening connection assembly further includes a rotation preventing sleeve limiting member; the rotation preventing sleeve limiting member is a snap ring or a buckle cover for an elastic buckle having two or more inner buckles; the snap ring or the buckle cover is mounted on the screw Upper or axial lock on the lock nut on one side of the sleeve. The stopper sleeve is a buckle cover, and the buckle cover not only can axially limit the side of the rotation sleeve, but also has the function of a cover, so that the rotation sleeve and the screw are not exposed to the air, thereby greatly increasing the rotation sleeve And the life of the screw, the use of safer, more beautiful appearance, the buckle cover can also play a decorative role. The stop sleeve limiter is a snap ring or a buckle cover. In the case where the threaded connection is prone to failure, the axial limit of the snap ring or the buckle cover is more reliable. The card slot is arranged on the screw, and the card slot is formed together and then threaded when the forging screw head is formed into a billet. The screw of this structure is similar to the cost of the common standard screw, and the cost is reduced; or the thread is threaded and then milled out. Stop the groove.

As an improvement, the stop sleeve limit member is a buckle cover of an elastic buckle provided with two or more inner buckles, and the cover cover is provided with a receiving space for accommodating the lock nut; and the outer periphery of the lock nut is provided with elasticity The snap-fit resisting portion; the elastic buckle is buckled inwardly on the resisting portion of the lock nut to axially limit the side of the retaining sleeve, and the lock nut is received in the receiving space of the buckle cover. The fastening connection assembly of the structure, on the one hand, in the case where the threaded connection is prone to failure, the axial limit of the buckle cover is more reliable; on the other hand, the resisting portion is disposed on the outer circumference of the lock nut, and the resisting portion is formed when the lock nut blank is formed. Together with the upsetting, there is no need to form a resisting groove on the lock nut or the screw to reduce the cost. The buckle cover is stamped and formed from sheet metal, which is low in cost. The buckle cover can also cover the screw, the lock nut and the rotation stop sleeve, thereby greatly reducing the rust of the screw, the lock nut and the rotation stop sleeve exposed to the air.

As an improvement, the fastening connection assembly further includes a rotation stop sleeve limiting member; the third rotation preventing portion is a plurality of axial rotation preventing bars protruding from the hole wall of the rotation preventing through hole of the rotation preventing sleeve, and the fourth rotation stop The portion is an axial rotation preventing groove which is arranged on the first external thread portion and cooperates with the rotation preventing bar; the rotation preventing sleeve limiting member is a metal elastic member, and the limiting piece body including the annular sheet is at the limit The inner circumference of the body protrudes three or more elastic resisting ribs toward the axial center of the limiting body, and the end of each resisting rib forms a resisting portion that cooperates with the threaded bottom of the first male threaded portion. A resisting rib cooperates with the screw upper locking groove; the metal elastic member is mounted outside the first external thread portion of the screw, and the resisting rib extends into the thread groove of the screw to axially limit the rotation preventing sleeve away from the locking nut side The resisting ribs that cooperate with the rotation preventing grooves of the screw extend into the rotation preventing grooves of the screw to restrict the rotation of the metal elastic member with respect to the screw. The stopper sleeve is a metal elastic member, which is suitable for the case where the rotation sleeve is only slightly limited, and is particularly suitable for the case where the axial position of the fastening assembly is small. And one of the resisting ribs extends into the rotation stop groove of the screw to limit the rotation of the rotation preventing sleeve limit member relative to the screw, so that the limit position is reliable.

As a common improvement of the first to the eleventh, the fastening connection assembly further comprises an expansion member with two or more flaps and a drive nut; a first drive taper surface is disposed on an outer circumference of the resisting portion of the screw; and a second outer circumference is disposed on the outer circumference of the drive nut. a driving cone; the expansion member includes an expansion member body, an expansion sleeve abutting portion radially protruding on an outer circumference of the expansion member body, and a first expansion tapered surface disposed on the inner circumference of the expansion member and the first driving cone surface, a second expansion taper surface matched with the second driving cone surface; the expansion member is held together to form an expansion sleeve; the through hole formed by the expansion sleeve formed by the inflated expansion member is engaged with the first external thread portion of the screw; the expansion sleeve The corresponding expansion sleeve resisting portion is circumferentially distributed to form a broken independent ring shape; the first external thread portion of the screw thread is sequentially threadedly connected with the driving nut and the lock nut through the expansion sleeve.

A fastening connection structure comprises a base body, an attachment body and a fastening connection assembly; the base body is provided with a through hole that cooperates with the first external thread portion of the screw, and the attachment body is provided with the first external thread portion of the screw. a through hole; the first external thread portion of the screw passes through the through hole in the female body, and the through hole on the attached body is screwed with the lock nut, and the screw and the lock nut fasten the mother body and the attached body together; The screw of the four rotation stop portion is placed in the first rotation stop hole of the lock nut, and the first rotation stop portion of the lock nut corresponds to the positional relationship of the fourth rotation stop portion of the screw; the rotation rotation sleeve is installed on the lock nut The rotation sleeve is axially restrained in the first rotation stop portion and the second rotation stop of the lock nut and the second rotation stop of the rotation sleeve The part cooperates with the restraining lock nut to rotate relative to the rotation sleeve, and the third rotation stop of the rotation sleeve cooperates with the fourth rotation end of the screw to rotate the support screw relative to the rotation sleeve, and the screw and the lock nut are non-rotatably mounted together.

The fastening structure of the expansion structure is particularly suitable for the case where the hole on the mother body is a blind hole, the screw cannot pass through the mother body, and the metal material which cannot be tapped on the mother body, and the material of the mother body is relatively soft. It is easy to slide the wire with a threaded connection, such as aluminum for the mother body. The expansion fastening assembly further includes a driving nut. The screw is installed on the mother body through the structure of the expansion sleeve before installation, and then the attachment body is installed to facilitate the installation of the screw on the mother body. An expansion sleeve abutting portion is arranged on the expansion sleeve, and an abutting groove is arranged on the hole wall of the mother body, and the expansion sleeve resisting portion extends into the abutting groove of the pre-embedded sleeve to form a snap-fit by the surface and the surface, so that the expansion sleeve and the expansion sleeve The connection force of the mother body is mainly the mutual abutting force between the wedge-shaped resisting and the resisting groove, instead of the pre-tightening static friction force of the threaded connection or the expansion static friction force of the expansion screw. The abutting portion on the expansion member may be a resisting portion. The abutting portion on the expansion member may also be a plurality of abutting portions, and the shape of the single abutting portion on the cross section passing through the axis is a pointed shape or a trapezoidal shape or an arc shape; the shape of the resisting groove on the female body on the cross section passing through the axis is resistant to The matching portion has a pointed shape or a trapezoidal shape or an arc shape; the resisting portion and the abutting groove are in contact with the two inclined surface faces of the tapered shape or the two inclined faces of the trapezoid, or are contacted by the curved surface. This expansion fastening structure can withstand a very high connection force. Therefore, it is possible to cause connection failure in a large load, particularly in an axial load, a large vibration, and a high temperature. Corresponding to the fastening structure using the expansion structure, the lock nut connected with the screw, the rotation sleeve installed in the first rotation stop hole of the lock nut, and the structure for limiting the rotation sleeve and the fastening not the expansion structure The connection components are the same and will not be described again.

The utility model relates to a track structure, comprising a fastening connection component, a backing plate for carrying a track, a rail underlay, a guide rail, an insulating block and a spring strip; the fastening connection assembly further comprises a rotation preventing sleeve limiting member; the screw is a T-shaped screw a rotation stop groove communicating with the through hole and engaging with the resisting portion is disposed on the bottom surface of the backing plate; a through hole matching the first external thread portion of the screw is disposed on both sides of the backing plate, and is disposed on the bottom surface of the backing plate There is a rotation stop groove communicating with the through hole and engaging with the resisting portion, and the through hole adjacent to each side between the corresponding two through holes is provided with a resisting convex portion; the two sides of the through hole on opposite sides of the back plate are opposite The elastic bar support portion is provided, and the through hole on the pad plate is disposed between the resisting convex portion and the elastic bar support portion on the same side; the backing plate is mounted on the foundation, the lower rail pad is mounted on the backing plate, and the guide rail is mounted on the rail On the lower pad, the under-rail pad and the guide rail are placed between the two resisting convex portions of the pad; the insulating blocks are respectively installed between the two sides of the guide rail and the two resisting convex portions of the pad, and the two sides of the pad resist the convex portion Limiting the insulation blocks on both sides, the two insulation blocks are limited to the sides and the top surface of the guide rail; the resisting portion of the screw passes through the pad from top to bottom. a through hole on the plate is rotatably mounted in the rotation stop groove; the first external thread portion of the screw is screwed upwardly through the elastic bar and the lock nut, and the elastic bar is supported on the corresponding insulating block and the spring support portion; The two outer sides of the through holes on the two sides of the backing plate are provided with a gauge baffle, and the through holes on the backing plate are placed between the resisting convex portion on the same side and the gauge baffle, and the first external thread portion passes upward through the elastic The strip is screwed to the lock nut, and the elastic strip is supported on the corresponding insulating block and the gauge baffle; the screw and the lock nut fasten and connect the backing plate, the under-rail pad, the guide rail, the insulating block and the elastic strip; a screw provided with a fourth rotation stop portion is disposed in the first rotation stop hole of the lock nut, and the first rotation stop portion of the lock nut corresponds to the positional relationship of the fourth rotation stop portion of the screw; the resisting portion cooperates with the rotation stop groove The restraining screw rotates relative to the pad; the rotation preventing sleeve is installed outside the screw provided with the fourth rotation stopping portion and is disposed in the first rotation preventing hole; the rotation preventing sleeve is axially limited to the screw provided with the fourth rotation preventing portion The first and the first rotation stop hole; the first rotation stop of the lock nut and the second rotation stop of the rotation sleeve cooperate with the constraint lock nut Detent sleeve rotation, the fourth detent sleeve rotation stopper portion of the third rotation stop portion of the screw mating detent sleeve opposite constrained rotation of the screw, screw and lock nut non-rotatably mounted together.

The track structure of the fastening connection assembly of the above solution, the elastic bar and the pad fixed together by the fastening connection assembly, because the rotation sleeve restrains the lock nut from rotating relative to the screw, even if the elastic bar is subjected to a large force, or The track structure is in a vibrating environment, and the threaded connection is also very reliable. The threaded connection will not be broken due to the loosening of the lock nut relative to the screw. This ensures that the spring bar reliably presses the insulating block and the insulating block reliably presses the guide rail. The rails are reliably mounted to the shim to prevent accidents.

A track structure comprising a fastening connection assembly, a pre-embedded sleeve, a backing plate for carrying the rail; a through hole matched with the first external threaded portion of the screw on both sides of the backing plate; the pre-embedded sleeve The hole is embedded in the blind hole on the ground corresponding to the through hole of the pad, and the hole is provided in the pre-embedded sleeve, and the annular wall of the pre-embedded sleeve is provided with an annular resistance against the expansion sleeve abutting portion. a groove; the first external thread portion of the screw is threadedly connected to the driving nut through the expansion sleeve, and the resisting portion of the screw and the first driving taper surface, the expansion sleeve and the driving nut are installed in the hole in the pre-embedded sleeve; In the expanded state, the first expansion of the expansion sleeve is hooped on the first drive cone surface of the screw, and the second expansion cone of the expansion sleeve is huged on the second drive cone surface of the drive nut; the first drive cone is opposite The first expansion is slid by the tapered surface, and the second driving cone surface is driven to expand by the cone sliding of the second expansion. When the expansion sleeve is fully expanded, the expansion sleeve resisting portion extends into the abutment groove of the pre-embedded sleeve. The surfaces resist each other to form a snap fit, and the expansion sleeve on the expansion sleeve The blocking portion is axially resisted by the resisting groove on the pre-embedded sleeve, and the screw, the expansion sleeve and the driving nut are fixedly connected with the pre-embedded sleeve, and the resisting portion of the screw is axially resisted by the expansion sleeve; the first external thread of the screw The through hole is threadedly connected to the lock nut through the through hole, the lock nut axially abuts the pad, and the screw, the expansion sleeve and the lock nut are fastened to the pad and the pre-embedded sleeve.

The track structure of the fastening connection assembly of the above solution fixes the backing plate in the pre-embedded sleeve of the foundation by fastening the connecting component, and the track structure is violently vibrated because the retaining sleeve restrains the lock nut from rotating relative to the screw. The environment, the threaded connection is also very reliable, and the threaded connection will not be broken due to the loosening of the lock nut relative to the screw. This ensures that the backing plate is reliably installed with the pre-embedded casing of the foundation to prevent accidents.

A crankshaft linkage mechanism comprises a crankshaft, a connecting rod set and a fastening connection assembly; the connecting rod set comprises a connecting rod body, a connecting rod big head cover and a connecting rod big head bearing bush; the connecting rod body comprises a connecting rod big head and a connecting rod small head, A through hole is arranged on the big end of the connecting rod; a through hole is arranged on the big head cover of the connecting rod; the fastening connecting component further comprises a stop sleeve limiting piece; the large connecting rod of the connecting rod is wrapped outside the crankshaft, and the big end of the connecting rod body and the connecting rod big head The cover is wrapped outside the large shaft of the connecting rod; one end of the screw provided with the first external thread portion passes through the through hole on the big end of the connecting rod, and the through hole on the big head cover of the connecting rod is screwed with the locking nut, the screw and the lock nut The connecting rod body and the connecting rod big head cover are fastened together; the screw provided with the fourth rotation stopping portion is placed in the first rotation stopping hole of the locking nut, and the first rotation end portion of the locking nut and the screw The position of the four rotation stop portions is corresponding; the rotation sleeve is installed outside the screw provided with the fourth rotation stop portion and is placed in the first rotation stop hole, and the rotation sleeve limit member is mounted with the screw or the big cover of the connecting rod Installed together to axially limit one side of the rotation sleeve; the first rotation stop of the lock nut and the second rotation sleeve The rotating portion cooperates with the restraining lock nut to rotate relative to the rotation preventing sleeve, and the third rotation stopping portion of the rotation preventing sleeve cooperates with the fourth rotation stopping portion of the screw to rotate the binding screw relative to the rotation preventing sleeve, and the screw and the locking nut are non-rotatably mounted together .

The crankshaft link mechanism of such a structure, the link body and the connecting rod head cover fixed together by the fastening connector, because the link body and the lock nut have no relative rotation, even if the link body is subjected to a large force, or the crankshaft The connecting rod is in a vibrating environment, and the connection between the screw and the lock nut is also reliable, and the threaded connection does not fail due to the reversal of the lock nut relative to the screw. This ensures that the link body and the connecting rod cap are reliably mounted together to prevent accidents.

A bone connecting device comprises a fastening connection assembly and a connecting member; the fastening connecting assembly further comprises a rotation preventing sleeve limiting member; and the connecting member is provided with two or more through holes which cooperate with the first external thread portion of the screw; The through hole on one connecting member corresponds to a screw, a lock nut, a rotation preventing sleeve and a rotation preventing sleeve limiting member; the first external thread portion of the screw passes through the corresponding through hole of the connecting member and the threaded through hole of the locking nut Threadedly connected, the screw provided with the fourth rotation stop is placed in the first rotation stop hole of the lock nut, and the first rotation stop of the lock nut corresponds to the positional relationship of the fourth rotation stop of the screw; The screw sleeve is disposed outside the screw provided with the fourth rotation stop portion and is disposed in the first rotation stop hole; the rotation sleeve sleeve is mounted on the screw or the connector is axially restrained from the rotation sleeve; the third rotation portion is The fourth rotation stop portion cooperates with the restriction rotation sleeve to rotate relative to the screw, and the first rotation stop portion and the second rotation rotation portion cooperate to restrain the rotation of the lock nut relative to the rotation sleeve, and the screw and the lock nut are non-rotatably mounted together.

A bone joining method for a bone connecting device, the connecting method comprising the following steps:

The first external thread portion of one screw passes through the through hole in the connecting member, and one broken bone is screwed to the lock nut, and the screw fastens the broken bone to the connecting member; the first external thread of the other screw Passing through another through hole in the connecting member, and the other broken bone is screwed to the lock nut, and the screw fastens the other broken bone to the connecting member;

a screw provided with a fourth rotation stop portion is disposed in the corresponding first rotation stop hole, and the fourth rotation stop portion of the screw corresponds to the positional relationship of the first rotation stop portion of the corresponding first rotation stop hole; And disposed in the first rotation preventing hole outside the screw provided with the fourth rotation preventing portion; the stopper sleeve is mounted on the screw or the connecting member is axially restricted to the rotation preventing sleeve; the third rotation end portion Cooperating with the fourth rotation preventing portion to restrain the rotation of the rotation sleeve relative to the screw, the first rotation stop portion and the second rotation rotation portion cooperate to restrain the rotation of the lock nut relative to the rotation sleeve, and the screw and the lock nut are non-rotatably mounted together.

The connecting piece is used to connect the two broken bones. Since the locking sleeve restrains the locking nut from rotating relative to the screw, the connecting piece connects the two broken bones very reliably, and the connection is not loosened, displaced, etc. due to frequent movement of the bone. The side effects of the pain caused by the device are greatly reduced. For some older patients, after the fracture is healed, the bone connecting device can be removed without the second injury.

The beneficial effects of the invention are:

It is a technical problem that has been solved for a long time and has not been completely solved, in order to prevent the thread from being reversed and loosened, and to maintain the convenient, fast and reliable detachability of the mechanical thread connection.

The invention restricts the rotation of the screw relative to the mother body and the attached body by the rotation stop resisting portion of the screw, and the rotation preventing sleeve limits the rotation of the lock nut relative to the screw, so that the screw and the lock nut are non-rotatably mounted on the mother body and the attached body to prevent the fastening. The lock nut is loosened relative to the screw during use of the connecting assembly. The gap sleeve and the first rotation preventing hole and the lock nut generally have a clearance fit, which facilitates the installation and removal of the rotation sleeve.

In order to screw the lock nut to the screw thread, the positional relationship between the first rotation stop portion of the first rotation stop hole and the fourth rotation stop portion of the screw can correspond, and the second rotation of the rotation sleeve is noted when designing the rotation sleeve. The positional relationship between the portion and the third rotation stop portion, that is, the second rotation stop portion and the third rotation stop portion have a corresponding rule.

The outer periphery of the anti-rotation sleeve protruding from the lock nut is provided with a take-out structure. When taking out, generally, the tool is not required to be taken out, and the outer circumference of the anti-rotation sleeve is directly grasped by hand, and then the device can be installed. The rotation stop sleeve in the first rotation stop hole and outside the screw is taken out, and the removal is particularly convenient. Of course, for some anti-rotation sleeves that require a large force to be taken out, the removal tool can also be used.

A take-off resisting portion is arranged on the anti-rotation sleeve. When the anti-rotation sleeve is taken out, not only the clamping friction force of the clamping sleeve is clamped, but also the anti-rotation sleeve is gripped, and the shaft of the anti-rotation sleeve is removed. The force is resisted, so that the anti-rotation sleeve can be taken out very reliably. Because during the use, the rust, dust, etc. enter between the anti-rotation sleeve and the first anti-rotation hole, and the long-term use causes the anti-rotation sleeve to engage with the first anti-rotation hole, etc., the anti-rotation sleeve is completely stuck in the first In the case of the inside of the rotary hole, the take-off resisting portion is provided, and the anti-rotation sleeve can be reliably taken out from the first anti-rotation hole.

After the screw is screwed to the lock nut, the first rotation stop portion and the second rotation stop portion cooperate to restrain the lock nut from rotating relative to the rotation sleeve, and the third rotation stop portion and the fourth rotation rotation portion cooperate to restrain the rotation of the screw relative to the rotation sleeve So that the screw and the lock nut can not be rotated, and the screw and the lock nut will not be loosened due to the reverse rotation, so that the screw and the lock nut are kept in the originally required locking position, the thread of the screw and the lock nut. The clamping force of the connection is basically unchanged during the use; even if the ordinary screw lock nut is used for connection, in the harsh environment such as severe vibration and high temperature, the clamping force of the screw connection of the screw and the lock nut is basically in use. No change; therefore, the best locking effect is achieved, which can effectively avoid the screw connection of the screw and the lock nut.

The structure of the rotation preventing sleeve and the first rotation preventing hole is a spline-shaped structure or a regular polygonal structure or a gear-shaped structure. Under the premise of satisfying the processing and use, the plurality of moldings cooperate with the first rotation stop portion and the second stop. The rotating part, so that in the state that the screw connection of the screw and the lock nut is optimally locked, in order to install the rotation preventing sleeve, the smaller the angle when the lock nut is finely adjusted, the first rotation stop portion of the lock nut can be made. Corresponding to the positional relationship of the fourth rotation stop of the screw, the installation of the rotation sleeve is satisfied. The smaller the angle of the fine adjustment lock nut, the better the locking effect between the screw and the lock nut, and the locking force between the screw and the lock nut is prevented from being too large or too small.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 1.

2 is a perspective exploded view of the fastening joint assembly of Embodiment 1.

3 is a perspective exploded view of the fastening structure of Embodiment 1.

4 is a perspective exploded view of the fastening joint assembly of Embodiment 2.

Figure 5 is a perspective exploded view of the fastening assembly of the third embodiment.

Fig. 6 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 3 taken along the axis of the screw.

7 is a perspective exploded view of the fastening connection assembly of Embodiment 4.

Fig. 8 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the fourth embodiment.

9 is a perspective exploded view of the fastening joint assembly of Embodiment 5.

Figure 10 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 5 taken along the axis of the screw.

Figure 11 is a perspective exploded view of the fastening assembly of the embodiment 6.

Figure 12 is a perspective view of the buckle cover of the sixth embodiment.

Figure 13 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 6 taken along the axis of the screw.

Figure 14 is a perspective exploded view of the fastening assembly of Embodiment 7.

Figure 15 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 7 taken along the axis of the screw.

Figure 16 is a perspective view of the buckle cover of the seventh embodiment.

Figure 17 is a perspective exploded view of the fastening assembly of the eighth embodiment.

18 is a perspective exploded view of the fastening joint assembly of Embodiment 9.

Figure 19 is a perspective exploded view of the fastening assembly of the embodiment 10.

Figure 20 is a perspective exploded view of the fastening joint assembly of the eleventh embodiment.

Figure 21 is a perspective view of the buckle cover of the eleventh embodiment.

Figure 22 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 11 taken along the axis of the screw.

Figure 23 is a perspective view showing the fastening structure of the embodiment 12.

Figure 24 is a perspective exploded view of the fastening assembly of the embodiment 12.

Figure 25 is a perspective view showing the fastening structure of the embodiment 13.

Figure 26 is a perspective exploded view of the fastening assembly of the embodiment 13.

Figure 27 is a perspective exploded view of the fastening assembly of the embodiment 14.

Figure 28 is a perspective view showing the combination of the anti-rotation sleeve and the metal elastic member of the fourteenth embodiment.

Figure 29 is a cross-sectional, schematic cross-sectional view showing the fastening structure of the fastening screw of the embodiment 15 taken along the axis of the screw.

Figure 30 is a perspective exploded view of the fastening joint assembly of the fifteenth embodiment.

31 is a perspective exploded view of the fastening joint assembly of Embodiment 16.

Figure 32 is a front elevational view showing the fastening structure of the embodiment 17.

Figure 33 is a cross-sectional view taken along line A-A of Figure 32.

Figure 34 is a perspective exploded view of the fastening assembly of Embodiment 17.

Fig. 35 is a perspective exploded perspective view showing the track structure of the embodiment 18.

Figure 36 is a perspective exploded view of the fastening assembly of the embodiment 18.

Figure 37 is a cross-sectional, schematic cross-sectional view showing the track structure of the embodiment 18 taken along the axis of the two screws.

38 is a schematic perspective view of a bone connecting device and a bone of Example 20.

Figure 39 is a cross-sectional, schematic cross-sectional view showing the bone connecting device of Example 20 and the bone passing through the two screws.

Figure 40 is a perspective view showing the crankshaft link mechanism of the twenty-first embodiment.

Figure 41 is a cross-sectional view showing the crankshaft link mechanism of the twenty-first embodiment taken along the axis of the two screws.

Figure 42 is a cross-sectional view showing the crankshaft link mechanism of the embodiment 22 taken along the axis of the two screws.

detailed description

Example 1

As shown in FIGS. 1 to 3, a fastening connection structure includes a fastening connection assembly, a mother body 1, and an attachment body 2. The mother body 1 is provided with a through hole 3, and the attachment body 2 is provided with a through hole 4.

The fastening connection assembly comprises a screw 5, a lock nut 6, a rotation preventing sleeve 7, and a rotation preventing sleeve limiting member. The stop sleeve limit member is abutting the lock nut 8.

The lock nut 6 is provided with a threaded through hole 9 and a first rotation stop hole 10 communicating with the threaded through hole 9. The minimum hole diameter of the first rotation stop hole 10 is larger than the diameter of the threaded through hole 9. A first circumferential rotation preventing portion 11 is provided on the wall of the first rotation preventing hole 10. The hole wall of the first rotation stop hole 10 is an intersecting structure in which two identical hexagonal holes of the same structure are rotated by 30°, and twelve pointed grooves are formed on the hole wall of the first rotation stop hole 10, each of which is concave. The groove is formed by two intersecting planes of a regular hexagonal hole, one pointed The angular recess forms a first anti-rotation portion 11. The outer circumference of the lock nut 6 is a regular hexagon. The depth of the first rotation stop hole 10 is smaller than the thickness of the rotation preventing sleeve 7.

The rotation preventing sleeve 7 is provided with an axial rotation preventing through hole 12, and the outer circumference of the rotation preventing sleeve 7 is provided with a second rotation preventing portion 13 which is engaged with the first rotation preventing portion 11 and circumferentially arranged, and the rotation preventing through hole 12 is A third rotation stop portion 14 circumferentially arranged is provided on the wall of the hole. The outer circumference of the rotation preventing sleeve 7 is a hexagonal shape with a single regular hexagonal hole of the lock nut 6, and the six planes of the outer circumference of the rotation preventing sleeve 7 form six second rotation preventing portions 13 which are circumferentially arranged. The wall of the hole of the through hole 12 is formed with a spline-shaped hole, and a groove on the wall of the hole of the through hole 12 forms a third rotation preventing portion 14. The axial length of the first rotation stop portion 11 of the first rotation stop hole 10 is larger than the axial length of the second rotation rotation portion 13 of the rotation preventing sleeve 7.

The screw 5 is sequentially provided with a resisting portion 15, a first male screw portion 16 that engages with the threaded through hole 9 of the lock nut 6, a rotation preventing shaft 17, and an external thread portion 18 that engages with the lock nut 8. The resisting portion 15 radially protrudes from the first male thread portion 16. A fourth rotation preventing portion 19 that is circumferentially distributed with the third rotation preventing portion 14 is provided on the outer circumference of the rotation preventing shaft 17, and the outer circumference of the rotation preventing shaft 17 is fitted with the hole wall of the spline-shaped rotation preventing through hole 12 Key shape. An axial rib on the outer circumference of the rotation preventing shaft 17 forms a fourth rotation preventing portion 19 that cooperates with the groove-shaped third rotation preventing portion 14. The maximum outer diameter of the rotation preventing shaft 17 is smaller than or equal to the thread bottom diameter of the first male thread portion 16, which is larger than the maximum outer diameter of the external thread portion 18.

The first external thread portion 16 of the screw 5 is threadedly connected to the lock nut 6 through the through hole 3 in the through hole 3 of the base body 1 and the through hole 4 of the attachment body 2. The resisting portion 15 axially resists the base body 1 and the lock nut 6 axially resists Attachment 2, screw 5 and lock nut 6 fasten the mother body 1 and the attachment body 2 together; the rotation shaft 17 of the screw 5 is placed in the first rotation stop hole 10 of the lock nut 6, the lock nut 6 The first rotation preventing portion 11 corresponds to the positional relationship of the fourth rotation preventing portion 19 of the screw 5. The rotation preventing sleeve 7 is mounted in the first rotation preventing portion 11 of the first rotation preventing hole 10 of the lock nut 6 and outside the fourth rotation preventing portion 19 of the rotation preventing shaft 17 of the screw 5, and the rotation preventing sleeve 7 protrudes from the locking nut The outer periphery of 6 forms a take-out structure for taking out the rotation preventing sleeve 7 from the first rotation preventing hole 10. The resisting lock nut 8 is screwed onto the externally threaded portion 18 to axially limit the side of the anti-rotation sleeve 7 away from the parent body 1. The first rotation stop portion 11 of the lock nut 6 and the second rotation stop portion 13 of the rotation sleeve 7 cooperate with the rotation of the lock nut 6 relative to the rotation sleeve 7 , and the third rotation stop portion 14 of the rotation sleeve 7 and the screw 5 The fourth rotation stop 19 cooperates with the restraining screw 5 to rotate relative to the rotation sleeve 7, and the screw 5 and the lock nut 6 are non-rotatably mounted together.

The installation method includes the following steps:

The through hole 4 on the attached body 2 is opposite to the through hole 3 on the mother body 1, the first external thread portion 16 of the screw 5 is passed through the through hole 3 in the parent body 1, the through hole 4 in the attached body 2, and the lock nut 6 threaded connection, the resisting portion 15 axially resists the base body 1, the lock nut 6 axially resists the attachment body 2, the screw 5 and the lock nut 6 fasten the mother body 1 and the attachment body 2 together; the rotation axis of the screw 5 is set In the first rotation stop hole 10 of the lock nut 6, the first rotation stop portion 11 of the lock nut 6 corresponds to the positional relationship of the fourth rotation stop portion 19 of the screw 5;

The forward or reverse micro-rotation lock nut 6 adjusts the angle of the first rotation stop portion 11 of the lock nut 6 with respect to the fourth rotation stop portion 19, so that the first rotation stop portion 11 of the lock nut 6 and the screw 5 are The positional relationship of the four rotation preventing portions 19 corresponds to the positional relationship between the second rotation preventing portion 13 of the rotation preventing sleeve 7 and the first rotation preventing portion 11 of the lock nut 6, and the third rotation preventing portion 14 of the rotation preventing sleeve 7 is The fourth rotation stop portion 19 of the screw 5 corresponds to the positional relationship, and the third rotation stop portion 14 of the rotation preventing sleeve 7 is mounted outside the fourth rotation stop portion 19 of the screw 5 and placed first in the first rotation stop hole 10 The rotation preventing sleeve 11 is axially restrained in the axial direction of the fourth rotation preventing portion 19 of the screw 5 and the first rotation preventing portion 11 of the first rotation preventing hole 10.

Example 2

As shown in FIG. 4, unlike the first embodiment, the hole wall of the first rotation stop hole 31 is in the shape of an internal gear, and a plurality of axial trapezoidal grooves are evenly arranged in the circumferential direction of the hole wall of the first rotation stop hole 31. A single trapezoidal groove forms a first anti-rotation portion 32. The outer circumference of the rotation preventing sleeve 33 is an outer gear shape that cooperates with the hole wall of the first rotation preventing hole 31. The outer circumferential circumference of the rotation preventing sleeve 33 uniformly aligns a plurality of axial trapezoidal teeth, and the single trapezoidal teeth form the second rotation preventing portion 34. . The rotation preventing through hole 35 of the rotation preventing sleeve 33 has an inner gear shape, and the rotation preventing shaft 37 of the screw 36 has an outer gear shape that cooperates with the inner gear type rotation preventing through hole 35. A plurality of axial trapezoidal grooves are uniformly arranged in the circumferential direction of the hole wall of the through hole 35, and the single trapezoidal groove forms a third torsion portion 38. The plurality of axial trapezoidal teeth are evenly arranged in the outer circumferential direction of the rotation preventing shaft 37, and the single trapezoidal teeth form the fourth rotation preventing portion 39.

The first rotation preventing hole of the lock nut cooperates with the outer circumference of the rotation preventing sleeve as a gear-shaped structure, and the structure of the inner circumference of the rotation preventing sleeve and the rotation preventing shaft of the screw is a gear-shaped structure, so that the first rotation stop portion and the first The more the two rotation stop portions, the third rotation rotation portion and the fourth rotation rotation portion are, the smaller the angle of fine adjustment of the lock nut is, the lock nut and the screw are adjusted when the first rotation stop portion and the fourth rotation rotation portion are adjusted. The locking force of the threaded connection is more difficult to guarantee in the optimum range.

Example 3

As shown in FIGS. 5-6, a fastening connection structure includes a fastening connection assembly, a base body 121, and an attachment body 122. A through hole 123 is defined in the body 121, and a through hole 124 is defined in the attached body 122.

The fastening connection assembly includes a screw 125, a lock nut 126, a rotation preventing sleeve 127, and a rotation preventing sleeve limiting member. The stop sleeve limit member is abutting the lock nut 128.

A threaded through hole 129 and a first rotation stop hole 130 communicating with the threaded through hole 129 are provided in the lock nut 126, and the first rotation stop The smallest aperture of the aperture 130 is greater than the aperture of the threaded through aperture 129. The first torsion portion 131 of the first rotation stop hole 130 is provided with a circumferentially arranged first rotation stop portion 131. The hole wall of the first rotation stop hole 130 is an intersecting structure in which two identical hexagonal holes of the same rotation are rotated by 30°, and twelve pointed grooves are formed on the hole wall of the first rotation stop hole 130, each of which is concave. The grooves are formed by two intersecting planes of regular hexagonal holes, and a pointed groove forms a first anti-rotation portion 131. The outer circumference of the lock nut 126 is a regular hexagon. The depth of the first rotation stop hole 130 is smaller than the thickness of the rotation preventing sleeve 127.

The rotation preventing sleeve 127 is provided with an axially-shaped circular rotation preventing through hole 132. The outer circumference of the rotation preventing sleeve 127 is provided with a second rotation preventing portion 133 which is engaged with the first rotation preventing portion 131 and circumferentially arranged. A third rotation stop portion 134 that is circumferentially arranged is provided on the hole wall of the hole 132. The outer circumference of the rotation preventing sleeve 127 is a positive hexagonal shape with a single regular hexagonal hole of the lock nut 126, and the six planes of the outer circumference of the rotation preventing sleeve 127 form six second rotation preventing portions 133 which are circumferentially arranged. The wall of the hole of the through-stop hole 132 is provided with three circumferentially evenly distributed axial rotation preventing bars, and one of the rotation preventing bars forms a third rotation preventing portion 134.

The screw 125 is sequentially provided with a resisting portion 135 and a first external thread portion 136 that cooperates with the threaded through hole 129 of the lock nut 126. The resisting portion 135 radially protrudes from the first male thread portion 136. The first external thread portion 136 is provided with three axial rotation grooves that cooperate with the three rotation preventing bars on the rotation preventing sleeve 127, and one rotation preventing groove forms a fourth engagement with the third rotation preventing portion 134. The rotation stop portion 137.

The first external thread portion 136 of the screw 125 is threadedly connected to the lock nut 126 through the through hole 123 of the base 121 and the through hole 124 of the attachment body 122. The resisting portion 135 axially resists the base 121, and the lock nut 126 axially resists. The attachment body 122, the screw 125 and the lock nut 126 fasten the female body 121 and the attachment body 122 together; the first external thread portion 136 of the fourth rotation preventing portion 137 extends into the first rotation of the lock nut 126 In the hole 130, the first rotation stop portion 131 of the lock nut 126 corresponds to the positional relationship of the fourth rotation stop portion 137 of the screw 125. The rotation preventing sleeve 127 is installed in the first rotation preventing portion 131 of the first rotation preventing hole 130 of the lock nut 126 and outside the fourth rotation preventing portion 137 of the screw 125, and the rotation preventing strip of the rotation preventing sleeve 127 extends into the screw 125. In the rotation stop groove, the rotation preventing sleeve 127 protrudes from the first rotation preventing hole 130, and the first external thread portion 136 of the screw 125 protrudes from the rotation preventing sleeve 127, and the locking locking nut 128 is screwed on the first external thread portion 136. The axial stop of the stop sleeve 127 away from the parent body 121 is axially limited. The first rotation stop portion 131 of the lock nut 126 and the second rotation stop portion 133 of the rotation preventing sleeve 127 cooperate with the restriction lock nut 126 to rotate relative to the rotation sleeve 127, and the third rotation stop portion 134 of the rotation sleeve 127 and the screw 125 The fourth rotation stop portion 137 cooperates with the restraining screw 125 to rotate relative to the rotation preventing sleeve 127, and the screw 125 and the lock nut 126 are non-rotatably mounted together.

Example 4

As shown in FIGS. 7 and 8, unlike the third embodiment, the rotation preventing sleeve 151 is provided with a take-up resisting portion 153 having a convex shape in which a second rotation preventing portion 152 is radially protruded. The installed fastening connection structure, the one end of the rotation preventing sleeve 151 provided with the second rotation preventing portion 152 is installed in the first rotation preventing hole 154 of the lock nut 150, and the second rotation preventing portion 152 of the rotation preventing sleeve 151 is convex. The first rotation stop hole 154 is formed, so that the take-out space 155 is formed between the take-up resisting portion 153 and the lock nut 150. When the fastening structure is disassembled, the resisting lock nut 156 is first separated from the first male screw portion 157, and then the take-off resisting portion 153 and the partial second rotation preventing portion 152 of the rotation preventing sleeve 151 are grasped, and the rotation preventing sleeve 151 is removed from the rotation preventing sleeve 151. The first torsion hole 154 of the lock nut 150 is taken out. The rotation preventing sleeve 151 of such a structure is convenient to be taken out from the first rotation preventing hole 154 without an additional tool.

Example 5

As shown in FIG. 9 and FIG. 10, unlike the third embodiment, the rotation preventing sleeve 170 is further provided with a circular take-out groove 172 which is recessed from the outer periphery of the rotation preventing sleeve 170 and provided with the second rotation preventing portion 171. The groove wall 177 of the take-out groove where the second rotation preventing portion 171 is not provided forms a resisting portion, and the take-out groove 172 forms a take-out space. The installed fastening connection structure is provided with one end of the rotation preventing sleeve 170 and the second rotation preventing portion 171 is installed in the first rotation preventing hole 173, and the extraction groove 172 protrudes from the first rotation preventing hole 173. When the fastening structure is disassembled, the resisting lock nut 174 is first separated from the first external thread portion 176 of the screw 175, and then the take-out groove 172 of the rotation preventing sleeve 170 is grasped, and the rotation preventing sleeve 170 is removed from the first rotation preventing hole 173. take out. The rotation preventing sleeve 170 of such a structure is convenient to be taken out from the first rotation preventing hole 173 without an additional tool.

Example 6

As shown in FIG. 11 to FIG. 13 , unlike the second embodiment, the rotation preventing sleeve limiting member is a buckle cover 224 , and the mounting portion 222 is provided on the end surface of the first male thread portion 221 on the outer circumference of the mounting portion 222 . A circumferential groove 223 is provided, and the maximum outer diameter of the mounting portion 222 is smaller than the bottom diameter of the first male screw portion 221.

A cavity 226 is disposed on a side of the buckle cover 224 facing the base 225. On the bottom surface of the cavity 226, four inwardly engaging elastic buckles 227 that cooperate with the card slots 223 are protruded. The outer diameter of the annular end surface 229 of the cavity wall 228 is smaller than the maximum outer diameter of the rotation sleeve 230, and the inner diameter is larger than the minimum inner diameter of the rotation sleeve 230. This ensures that the annular end surface 229 can withstand the back surface of the rotation sleeve 230 away from the base 225. On the end face.

The elastic buckle 227 of the buckle cover 224 is fastened in the slot 223 of the mounting portion 222 of the screw. The annular end surface 229 of the cavity wall 228 abuts against the end surface of the rotation sleeve 230 away from the base 225 in the axial direction of the rotation sleeve 230. Limit.

Example 7

As shown in FIG. 14 to FIG. 16 , unlike the sixth embodiment, the lock nut 251 includes a lock nut body 252 . The outer periphery of the lock nut body 252 is provided with a resisting collar 253 , and the lock nut body 252 . The sides are each axially convex to resist the convex ring 253.

The buckle cover 254 includes a positive hexagonal cover body 255. The cover body 255 is provided with a cavity 256 for receiving the lock nut 251. The bottom surface of the cavity 256 is provided with a through hole 257 for avoiding the screw. The end surface of the opening end of 256 is provided with six vertical open end end faces convexly bent outwardly and then the end face of the vertical open end is bent convex 258, and the resisting portion is radially convex on the inward facing surface of the convex strip 258 259, a rib 258 and the abutment portion 259 thereon form an elastic snap 260. The buckle body 255 and the elastic buckle 260 form a receiving cavity 261 that cooperates with the resisting ring 253 of the lock nut 251 and the lock nut body 252 of the retaining ring 253 away from the mother side. The side of the lock nut 251 facing away from the first rotation stop hole protrudes from the axial length of the resisting collar 253 by more than the axial length of the resisting portion 259 on the buckle cover 254, so that the buckle cover 254 has sufficient space to be engaged with the lock The nut 251 is resisted by the convex ring 253.

The resisting portion 259 of the elastic buckle 260 is buckled inwardly on the resisting convex ring 253 of the lock nut 251 to axially limit the side of the rotation preventing sleeve away from the resisting portion 259, and the partial locking nut body 252 and the resisting convex ring 253 are accommodated. It is placed in the accommodating cavity 261 of the buckle cover 254.

Example 8

As shown in FIG. 17, unlike the sixth embodiment, the anti-rotation sleeve stopper is an outer hexagonal abutment lock nut 271.

Only one rotation preventing strip 273 is provided on the wall of the hole of the through hole 272.

The first male threaded portion 275 of the screw 274 is provided with only one anti-rotation groove 277 that cooperates with the rotation preventing strip 273 of the rotation preventing sleeve 276.

Example 9

As shown in FIG. 18, unlike the eighth embodiment, the outer circumference of the rotation preventing sleeve 297 is an outer gear shape that matches the hole wall of the first rotation preventing hole 292, and the outer circumference of the rotation preventing sleeve 297 is uniformly arranged in a plurality of axial directions. The triangular teeth, the single triangular teeth form a second stop 298. The hole wall of the through hole 300 includes a plane wall 301 which is larger than 180° and which is connected to the arc wall. The plane wall 301 which connects the arc wall forms a third rotation stop 302.

The first external thread portion 307 of the screw is provided with a fourth fourth rotation preventing portion 308 that cooperates with the third rotation preventing portion 302 of the plane of the rotation preventing through hole 300 of the rotation preventing sleeve 297, and is provided with a fourth rotation preventing portion 308. The outer circumference of the first external thread portion 307 is engaged with the rotation preventing through hole 300.

Example 10

As shown in FIG. 19, unlike the eighth embodiment, the rotation preventing sleeve 321 is magnetic, and the rotation preventing through hole 322 of the rotation preventing sleeve 321 includes a circular arc wall larger than 180° and a radially convex circular arc wall. A V-shaped convex portion at a right angle, and a V-shaped convex portion forms a third rotation preventing portion 323. The first external thread portion 326 of the screw 325 is provided with an axially right-angled V-shaped rotation preventing groove 327 that cooperates with the V-shaped convex portion, and the V-shaped rotation preventing groove 327 forms a fourth engagement with the third rotation preventing portion 323. Turning portion 328.

Example 11

As shown in FIGS. 20 to 22, unlike the seventh embodiment, the rotation preventing sleeve 341 includes a second rotation preventing portion 342 and a take-up resisting portion 343 that radially protrudes the second rotation preventing portion 342. Three triangular anti-rotation teeth are provided on the outer circumference of the second rotation preventing portion 342, and the rotation preventing teeth are distributed on the same external gear. A plurality of axial anti-slip grooves 344 are evenly distributed in the circumferential direction of the outer peripheral portion of the take-off resisting portion 343 of the rotation preventing sleeve 341, so that the rotation of the rotation preventing sleeve 341 is more reliable when the rotation preventing sleeve 341 is taken out. At the axial center position of the rotation preventing sleeve 341 corresponding to the second rotation preventing portion 342, a rotation preventing through hole 347 which is engaged with the first male screw portion 346 of the screw 345 is provided, and the rotation center of the rotation preventing sleeve 341 corresponds to the shaft center of the removal receiving portion 343. A large hole is provided which communicates with the through hole 347 and has a larger diameter than the through hole 347. A rotation preventing strip 349 that engages with the rotation preventing groove 348 of the screw 345 is radially protruded from the hole wall of the through hole 347. A reinforcing protrusion 350 connected to the bottom surface of the large hole is radially protruded from the wall of the large hole corresponding to the second rotation stop portion 342 at a position where the outer circumference of the second rotation preventing portion 342 is not provided with the rotation preventing tooth, and the reinforcing protrusion 350 is not provided in the large hole. The wall of the hole is convexly provided with triangular teeth, and the triangular teeth are distributed on the same internal gear. The maximum outer diameter of the take-off resisting portion 343 of the rotation preventing sleeve 341 is larger than the maximum outer diameter of the lock nut. The axial length of the second rotation preventing portion 342 is equal to the depth of the first rotation preventing hole 351.

The first external thread portion 346 of the screw 345 is threadedly connected to the lock nut 354 through the female body 352 and the attachment body 353. The rotation preventing sleeve 341 is mounted outside the screw 345 and the first rotation preventing hole 351 of the lock nut 354, and is taken out and resisted. The outer circumference of the portion 343 radially protruding the lock nut 354 and the outer circumference of the lock nut 354 form a take-out space 356; the rotation preventing teeth of the second rotation stop portion 342 of the rotation preventing sleeve 341 extend into the first rotation of the lock nut 354 In the triangular rotation preventing groove 348 of the hole 351, the take-off resisting portion 343 of the rotation preventing sleeve 341 radially protrudes from the locking nut 354, and the locking nut 355 is axially restrained from the rotation preventing sleeve 341. When disassembling, the first external threaded portion 346 of the screw 345 is detached from the lock nut 355, and the take-off resisting portion 343 of the anti-rotation sleeve 341 is grasped by the hand to fix the sleeve 341 and the lock nut 354 and the screw 345. Separating, the lock nut 354 is detached from the screw 345, and finally the screw 345 is separated from the attached body 353 and the female body 352 to complete the disassembly of the fastening connection assembly.

Example 12

As shown in FIG. 23 and FIG. 24, different from the embodiment 11, the stop sleeve limiting member is a metal elastic member 371, and the limiting member body 372 including the annular sheet is disposed on the limiting member body 372. The inner circumference radially protrudes six elastically resisting ribs 373 evenly distributed toward the axis of the stopper body 372, and the end of each of the resisting ribs 373 forms a resistance against the threaded bottom diameter of the first external thread portion 374. Department 375. The maximum outer diameter of the limiting body 372 is greater than the maximum outer diameter of the retaining sleeve 376, so that the retaining sleeve retaining member can be grasped when the retaining sleeve retaining member is removed.

The rotation sleeve limiting member is mounted on the first external thread portion 374 of the screw, and the resisting protrusion 373 of the rotation sleeve limiting member passes the elastic The deformation is axially restrained by the thread groove of the first external thread portion 374 against the side of the rotation sleeve 376 facing away from the attachment 377, and one of the resisting protrusions 373 protrudes into the rotation preventing groove 379 of the screw 378 to limit the deformation. The sleeve limiter rotates relative to the screw 378 to provide a reliable limit.

Example 13

As shown in FIG. 25 and FIG. 26, different from the embodiment 12, the inner circumference of the limiting member body 391 protrudes radially from the three axially distributed abutting ridges 392 and a protruding portion 393 which are convex toward the axial center. The inner circumferential surface of the portion 393 is coaxial with the inner circumferential surface of the stopper body 391 and is in clearance with the first external thread portion 395 of the screw 394; a screw 394 is radially protruded on the inner circumferential surface of the projection 393. The rotation preventing projection 397 of the rotation preventing groove 396 is fitted, and the circumferential width of the protruding portion 393 is much larger than the circumferential width of the resisting projection 392 and the circumferential width of the rotation preventing projection 397. The rotation preventing convex portion 397 is provided on the convex portion 393 to greatly reduce the length of the rotation preventing convex portion 397, thereby greatly increasing the rotational force of the rotation preventing convex portion 397.

The anti-rotation sleeve limiting member is mounted on the first external thread portion 395 of the screw 394, and the resisting rib 392 of the anti-rotation sleeve limiting member is resisted by the thread groove of the first external thread portion 395 by the elastic deformation to deviate from the rotation preventing sleeve 398 One side of the attachment body 399 is axially constrained, and the rotation preventing projection 397 extends into the rotation preventing groove 396 of the screw 394 to more reliably restrict the rotation of the stopper sleeve 398 to the screw 394, thereby making the limit position more reliable.

Example 14

As shown in FIG. 27 and FIG. 28, unlike the twelfth embodiment, the outer circumferential circumference of the rotation preventing sleeve 411 is evenly distributed with five projections 413 which are axially protruded in a direction away from the rotation preventing portion 412, and the rotation preventing sleeve The outer periphery of the 411 forms a fracture on the outer side of the position where the projection 413 is disposed, and the side of the projection 413 facing the axial center of the rotation preventing sleeve 411 is provided with a resisting groove 414 that cooperates with the outer periphery of the stopper body 415.

The metal elastic member 416 is mounted in the rotation preventing sleeve 411. The outer periphery of the limiting member body 415 cooperates with the abutting groove 414 of the rotation preventing sleeve 411 to fix the rotation preventing sleeve 411 and the metal elastic member 416 together.

The rotation preventing sleeve 411 is mounted on the first external thread portion 418 of the screw 417 together with the metal elastic member 416, and the resisting projection 419 of the metal elastic member 416 is resisted by the thread groove of the first external thread portion 418 by the elastic deformation against the rotation preventing sleeve The 411 is axially offset from the side of the attachment.

Example 15

As shown in FIG. 29 and FIG. 30, unlike the eleventh embodiment, the anti-rotation sleeve stopper is a rubber cover 431, and the axial position of the rubber cover 431 is provided with a through hole 433 that is in clearance with the first male screw portion 432. The annular wall of the through hole 433 is provided with an annular, circumferentially broken resisting rib 434 which is axially evenly arranged and is symmetric with respect to the axis and is tightly engaged with the first external threaded portion 432; the rubber cover 431 is oriented One side of the sleeve 435 is completely concave-convex with the rotation preventing sleeve 435; an axial anti-slip groove 436 is evenly arranged on the outer circumference of the rubber cover 431.

The finished rotation preventing sleeve 435 is placed in the mold of the molded rubber cover 431, and the rubber cover 431 is molded, so that the rubber cover 431 and the rotation preventing sleeve 435 are fixed together.

When installed, the rotation sleeve 435 and the rubber cover 431 are simultaneously mounted on the outside of the first external thread portion 432 of the screw. After the rotation sleeve 435 is installed, the resisting rib 434 of the rubber cover 431 is elastically deformed and the first outer portion of the screw 437. The threaded portion 432 is tightly engaged to axially limit the side of the anti-rotation sleeve 435 away from the appendage 438. The resisting ribs 434 are circumferentially broken to make the elastic deformation of the resisting ribs 434 larger, so that the rubber cover 431 is tightly fitted with the first external threaded portion 432 of the screw 437, so that the limit is more reliable.

Example 16

As shown in FIG. 31, unlike the eleventh embodiment, the anti-rotation sleeve stopper is an annular rubber cover 501, and the axial position of the rubber cover 501 is provided with a through hole that is in clearance with the first male screw portion 502. 503, an annular, circumferentially broken resisting rib 504 that is axially evenly arranged, symmetric about the axis, and tightly engaged with the first externally threaded portion 502 is disposed on the wall of the through hole 503; The outer circumference is evenly arranged with an axial anti-slip groove 505.

After the end sleeve 506 is installed, the rubber cover 501 is attached to the outside of the first external thread portion 502 of the screw 507 by elastic deformation, and the resisting rib 504 of the rubber cover 501 is elastically deformed by the first external thread portion 502 of the screw 507. The axial stop of the side of the anti-rotation sleeve 506 away from the attachment is matched. The rubber cover 501 and the rotation preventing sleeve 506 are not formed in advance, and the mounting and dismounting of the rotation preventing sleeve 506 and the rubber cover 501 are facilitated.

Example 17

As shown in FIGS. 32 to 34, unlike the first embodiment, the mother body 591 is provided with a blind hole 592.

The fastening connection assembly further includes an expansion member 593 having the same three-lobed structure, a wire spring 594, a wire spring 595, and a drive lock nut 596.

The expansion member 593 includes an expansion member body 597, and a wedge-shaped abutting portion 598 and a wire spring receiving groove 599, which are radially protruded from the outer periphery of the expansion member body 597, and the wire spring receiving groove 600 are respectively disposed on the expansion member body 597. The first expansion tapered surface 601 and the second expansion tapered surface 602 on the inner circumference of both ends are connected to the cylindrical curved surface 603 of the first expansion tapered surface 601 and the second expansion tapered surface 602, and are mounted by the wire spring 594 The wire spring accommodates the groove 599, and installs the wire spring receiving groove through the wire spring 595 The three-lobed expansion members 593 are held together in the 600 to form an expansion sleeve 604; the corresponding resisting portions 598 on the expansion sleeve 604 are circumferentially distributed to form a broken independent ring shape. The single wedge-shaped abutment 598 on the expansion member 593 has a triangular cross section.

The screw 605 includes a cylindrical abutting portion 606, a conical abutting portion 607 having a large end connected to the abutting portion 606, a cylindrical connecting portion 608 connected to the small end of the abutting portion 607, and a small end connected to the connecting portion 608. a conical first driving taper surface 609, a first external thread portion 610 connected to the small end of the first driving taper surface 609, and a rotation preventing shaft 611 connected to the end surface of the first external thread portion 610, connected to the end surface of the rotation preventing shaft 611 External threaded portion 612. A fourth rotation preventing portion 613 is provided on the outer circumference of the rotation preventing shaft 611, and the outer circumference of the rotation preventing shaft 611 has a spline shape. An axial rib on the outer circumference of the rotation preventing shaft 611 forms a fourth rotation preventing portion 613. The resisting portion 606 is radially outwardly opposed to the blocking portion 607. The maximum outer diameter of the rotation preventing shaft 611 is less than or equal to the thread bottom diameter of the first external thread portion 610 and larger than the maximum outer diameter of the external thread portion 612.

The drive lock nut 596 includes a cylindrical abutting portion 614, a conical abutting portion 615 having a large end connected to the end surface of the abutting portion 614, a cylindrical connecting portion 616 connected to the small end of the abutting portion 615, and a large end connected to the connecting portion 616. The conical second driving cone surface 617, the resisting portion 614 radially protrudes from the large end of the resisting portion 615. The axial position of the drive lock nut 596 is provided with a threaded hole 622 that cooperates with the first external threaded portion 610. The end surface of the resisting portion 614 is provided with six pairs of circular clamping holes 618 that are axially symmetrical with respect to the drive lock nut 596.

An annular wedge-shaped abutment groove 619 is formed on the hole wall of the blind hole 592 of the mother body 591. The single wedge-shaped abutment groove 619 has a triangular cross section; the attachment body 620 is provided with a through hole 621. The aperture of the through hole 621 on the appendage 620 is smaller than the aperture of the blind hole 592 on the parent body 591.

The first external thread portion 610 of the screw 605 is threadedly coupled to the threaded hole 622 of the drive lock nut 596 through the expansion sleeve 604, the abutting portion 606 of the screw 605, the abutting portion 607, the connecting portion 608, the first driving tapered surface 609 and a portion The first male threaded portion 610, the expansion sleeve 604, and the drive lock nut 596 are mounted in the blind hole 592 on the female body 591; in the unexpanded state of the expansion sleeve 604, the first expansion tapered surface 601 of the expansion sleeve 604 is held in the screw On the first drive cone 609 of the 605, the second expansion taper 602 of the expansion sleeve 604 is hugged over the second drive cone 617 of the drive lock nut 596. The first driving taper surface 609 slides relative to the first expanding taper surface 601, and the second driving taper surface 617 slides relative to the second expanding taper surface 602 to drive the expansion sleeve 604 to expand. In the fully expanded state of the expanding sleeve 604, one end of the expanding sleeve 604 The end face resists the abutting portion 606 of the screw 605, and the first driving taper surface 609 of the screw 605 is placed in the cylindrical curved surface 603 of the expansion sleeve 604 over the first expansion taper surface 601; the end surface of the other end of the expansion sleeve 604 is resisted On the resisting portion 614 of the drive lock nut 596, the second drive taper 617 of the drive lock nut 596 is placed over the cylindrical curved surface 603 of the expansion sleeve 604 over the second expansion taper 602; the wedge-shaped resisting portion 598 extends The corresponding wedge-shaped abutting groove 619 is formed by the surface and the surface resisting each other, and the wedge-shaped resisting portion 598 on the expansion sleeve 604 is axially resisted by the upper wedge-shaped resisting groove 619 of the female body 591. The screw 605, the expansion sleeve 604, and the driving lock are locked. The nut 596 is fixedly coupled to the base 591, and the abutting portion 606 of the screw 605 is axially resisted by the expansion sleeve 604. The first externally threaded portion 610 of the screw 605 is threadedly coupled to the lock nut 623 through a through hole 621 in the attachment 620. The lock nut 623 axially resists the attachment 620, and the screw 605, the expansion sleeve 604 and the lock nut 623 will The parent body 591 and the appendage 620 are fastened together.

Example 18

As shown in FIG. 35 to FIG. 37, a track structure includes a fastening connection assembly, an insulation cushion plate 661, an iron pad lower adjustment plate 662, an iron pad 663, a rail under-pad 664, a guide rail 665, and an insulation. Block 666, spring 667.

The fastening connection assembly is different from the first embodiment in that the screw 668 includes a first external thread portion 669, a polished rod portion 670, and a rotation preventing abutting portion 671, and two axially symmetric about the screw 668 are provided on the rotation preventing abutting portion 671. Turn plane 672. The outer circumference of the positive hexagon of the lock nut 678 is convexly provided to resist the convex ring 673.

A resisting projection 675 is disposed on both sides of the guide rail 665 on the iron pad 663. A through hole 676 and a spring support portion 682 that are engaged with the first male screw portion 669 are sequentially disposed on the outer side of each of the side resisting projections 675. The bottom surface of the iron pad 663 is provided with a rotation preventing groove 677 which communicates with the through hole 676 and cooperates with the resisting portion 671.

The insulating cushion pad 661 is mounted on the foundation. The iron pad 663 lower height adjusting plate 662 is mounted on the insulating cushion plate 661. The iron pad plate 663 is mounted on the iron pad plate 663 to raise the pad 662, and the rail under the pad 664. Mounted on the iron pad 663, the rail 665 is mounted on the under-rail pad 664. The under-rail pad 664 and the guide rail 665 are disposed between the two resisting protrusions 675; the insulating blocks 666 are respectively installed between the two sides of the guide rail 665 and the two resisting protrusions 675 of the iron pad 663, and the two sides of the iron pad 663 are resisted. The convex portion 675 limits the insulating blocks 666 on both sides, and the insulating blocks 666 on both sides limit the two sides of the guiding rail 665.

The rotation preventing abutting portion 671 of the screw 668 passes through the through hole 676 on the iron pad 663 from the top to the bottom and is rotatably installed in the rotation preventing groove 677. The iron pad 663 is disposed between the resisting protrusion 675 and the elastic bar supporting portion 682 on the same side as the through hole 676. The first external thread portion 669 passes upward through the elastic bar 667, and the elastic bar 667 is supported on the corresponding insulating block. 666 and the elastic bar support portion 682, the first external thread portion 669 protrudes from the elastic rod 667 and is screwed with the threaded through hole 679 of the lock nut 678, and the rotation preventing resist portion 671 axially resists the iron pad 663, and the lock nut 678 One end of the anti-circular ring 673 is axially resisted by the elastic bar 667, and the screw 668 and the lock nut 678 fasten and fasten the iron pad 663 and the elastic bar 667; the anti-rotation resisting portion 671 and the anti-rotation groove 677 cooperate with the constraint The screw 668 rotates relative to the iron pad 663.

The lock nut 678, the rotation stop sleeve 680, and the lock nut 681 are identical to the lock nut, the rotation sleeve, and the lock nut of the embodiment 1.

Example 19

As shown in FIG. 35 to FIG. 37, a track structure includes a fastening connection assembly, a pre-embedded bushing 700 in the pre-buried foundation 674, an insulating cushion plate 661 installed in order from the bottom to the top, and an iron pad lowering height pad. A plate 662, an iron pad 663 for carrying the track, and a flat pad 701.

The fastening joint assembly is different from that of the embodiment 17 in that only one annular abutting portion 703 is provided on the outer circumference of the expander body 702.

The insulating cushion plate 661 and the iron pad lower adjusting plate 662, the iron pad 663 and the flat pad 701 are respectively provided with one-to-one corresponding through holes 704, through holes 705, through holes 706 and through holes 707.

The pre-embedded sleeve 700 is pre-buried in a blind hole on the foundation 674 corresponding to the through hole 706 of the iron pad 663, and a blind hole 708 is provided in the pre-embedded bushing 700, and the hole wall of the pre-embedded bushing 700 is provided. There is only one annular resist groove 709 that cooperates with the resisting portion 703. The through hole 704 of the insulating cushion plate 661, the through hole 705 of the iron pad lower adjusting pad 662, the through hole 706 on the iron pad 663, and the blind hole 708 on the pre-embedded bushing 700 have the same aperture, which is larger than the flat pad. The aperture of the through hole 707 on the block 701.

The first external thread portion 711 of the screw 710 is screwed to the drive lock nut 713 through the expansion sleeve 712, the abutting portion 714 of the screw 710, the abutting portion 715, the connecting portion 716, the first driving taper surface 717 and a portion of the first external thread. The portion 711, the expansion sleeve 712, and the drive lock nut 713 are mounted in the blind hole 708 on the pre-embedded sleeve 700. In the fully expanded state of the expansion sleeve 712, the resisting portion 703 of the expansion sleeve 712 extends into the resisting groove 709 of the pre-embedded sleeve 700, and the surface and the surface resist each other to form a snap. The resisting portion 703 on the expansion sleeve 712 is pre-embedded. The upper resisting groove 709 of the 700 is axially resisted, and the screw 710, the expansion sleeve 712, and the driving lock nut 713 are fixedly coupled with the pre-embedded sleeve 700, and the resisting portion 714 of the screw 710 is axially resisted by the expansion sleeve 712.

The first external thread portion 711 of the screw 710 passes through the through hole 704 of the insulating cushion plate 661, the through hole 705 of the iron pad lower adjustment pad 662, the through hole 706 on the iron pad 663, and the flat pad 701. The through hole 707 is screwed to the lock nut 718, the lock nut 718 axially resists the flat block 701, and the screw 710, the expansion sleeve 712 and the lock nut 718 will pre-embed the sleeve 700 and the insulating cushion plate 661, the iron pad The high-pad 662 iron pad 663 and the flat pad 701 are fastened and connected together.

The lock nut 718, the rotation preventing sleeve 719, and the resisting lock nut 720 have the same structure and installation relationship as the lock nut, the rotation preventing sleeve, and the locking nut of the first embodiment.

Example 20

As shown in FIGS. 38 and 39, a bone connecting device includes a fastening connection assembly and a connecting member 791.

The fastening connection assembly is the same as in the fifth embodiment.

Four through holes 792, through holes 793, through holes 794, and through holes 795 are provided in the connecting member 791. The through hole 792 on the connecting member 791 corresponds to the screw 796, the lock nut 798, the rotation preventing sleeve 799, and the buckle cover 800. The through hole 793 on the connecting member 791 corresponds to the screw 801, the lock nut 802, the rotation preventing sleeve 803, and the buckle cover 804. The through hole 794 on the connecting member 791 corresponds to the screw 805, the lock nut 806, the rotation preventing sleeve 807, and the buckle cover 808. The through hole 795 on the connecting member 791 corresponds to the screw 809, the lock nut 810, the rotation preventing sleeve 811, and the buckle cover 812.

The first external thread portion 797 of the screw 796 is threadedly connected to the lock nut 798 through the through hole 792 of the connecting member 791, and the first external thread portion 814 of the screw 801 passes through the through hole 793 of the connecting member 791. The broken bone 813 is screwed to the lock nut 802. The screw 796 and the lock nut 798, the screw 801 and the lock nut 802 securely connect the broken bone 813 with the connector 791.

The first external thread portion 815 of the screw 805 is threadedly connected to the lock nut 806 through the through hole 794, the broken bone 817 of the connector 791, and the first external thread portion 816 of the screw 809 passes through the through hole 795 of the connector 791. The broken bone 817 is screwed to the lock nut 810, and the screw 805 and the lock nut 806, the screw 809 and the lock nut 810 fasten the broken bone 817 and the connecting piece 791 together.

The bone joining method of the bone connecting device comprises the following steps:

The first male threaded portion 797 of the screw 796 is threadedly connected to the lock nut 798 through the through hole 792 and the broken bone 813 of the connecting member 791, and the first male threaded portion 814 of the screw 801 is passed through the connecting member 791. The hole 793, the broken bone 813 are screwed to the lock nut 802, and the screw 796 and the lock nut 798, the screw 801 and the lock nut 802 fasten the broken bone 813 and the connecting piece 791 together. The first external thread portion 815 of the screw 805 is threadedly connected to the lock nut 806 through the through hole 794 and the broken bone 817 of the connecting member 791. The first external thread portion 816 of the screw 809 passes through the through hole in the connecting member 791. 795, the broken bone 817 is screwed with the lock nut 810, and the screw 805 and the lock nut 806, the screw 809 and the lock nut 810 fasten the broken bone 817 and the connecting member 791 together.

The lock nut, the rotation sleeve, and the lock nut that are mounted together with the corresponding screw are identical to the lock nut, the rotation sleeve, and the lock nut of the embodiment 11.

Example 21

As shown in FIGS. 40 and 41, the crankshaft link mechanism includes a fastening connection assembly, a crankshaft 941, and a link set.

The fastening joint assembly is different from the first embodiment in that a stop plane 944 is provided on the abutting portion 943 of the screw 942.

The link set includes a link body 951, a link head cover 952, and a link large head bush 953. The link body 951 includes a link head 945 and a link head 946. A through hole 954 is defined in the connecting rod big head 945, and a through hole 955 is arranged in the connecting rod big head cover 952.

The connecting rod big head bearing 953 is enclosed outside the crankshaft 941, and the connecting rod big head 945 and the connecting rod big head cover 952 are enclosed outside the connecting rod big head bearing 953; the first external thread portion 947 of the screw 942 passes through the connecting rod big head 945. The through hole 955 of the hole 954 and the connecting rod big head cover 952 is screwed with the lock nut 948, and the rotation preventing surface 944 of the resisting portion 943 of the screw 942 abuts against the connecting rod big head 945, and the screw 942 and the connecting rod big head 945 are not rotatable. Installed together, the resisting portion 943 axially resists the connecting rod head 945, the locking nut 948 axially resists the connecting rod head cover 952, and the screw 942 and the lock nut 948 fasten the connecting rod big head 945 and the connecting rod big head cover 952 Together.

The lock nut 948, the rotation preventing sleeve 949, and the resisting lock nut 950 have the same structure and installation relationship as the lock nut, the rotation preventing sleeve and the resisting lock nut of the first embodiment.

Example 22

As shown in FIG. 42, unlike the embodiment 21, the screw 973 includes a resisting portion 968, a polished rod portion 969, and a first male screw portion first male screw portion 974. The hole wall of the rotation preventing through hole 971 of the rotation preventing sleeve 970 is provided with three circumferentially evenly distributed axial rotation preventing bars, and one of the rotation preventing bars forms a third rotation preventing portion 972. The first external thread portion 974 of the screw 973 is provided with three axial rotation preventing grooves which are matched with the three rotation preventing bars on the rotation preventing sleeve 970, and one rotation preventing groove forms a matching with the third rotation preventing portion 972. The fourth rotation stop portion 975. The third rotation stop portion 972 of the rotation sleeve 970 extends into the fourth rotation stop portion 975 of the screw 973 to restrain the screw 973 from rotating relative to the rotation sleeve 970.

Claims

A fastening connection assembly includes a screw and a lock nut; the screw is provided with a resisting portion and a first external thread portion; the resisting portion radially protrudes the first external thread portion; and the utility model further comprises: a rotation preventing sleeve;

a threaded through hole and a first rotation stop hole communicating with the threaded through hole are provided in the lock nut, the minimum aperture of the first rotation stop hole is larger than the maximum aperture of the threaded through hole; and the circumference of the hole wall of the first rotation stop hole is provided Aligning more than six axial first warping portions uniformly;

The outer circumference of the rotation preventing sleeve is provided with a second rotation stopping portion which is matched with the first rotation preventing portion and uniformly arranged in the circumferential direction; the rotation preventing sleeve is provided with an axial rotation preventing through hole, and the hole wall of the rotation preventing through hole is provided a plurality of axial third rotation preventing portions; the rotation sleeve is provided with an outer circumference of the second rotation preventing portion and a hole wall of the first rotation preventing hole of the lock nut;

The thickness of the rotation preventing sleeve is larger than the depth of the first rotation preventing hole, and the outer circumference of the rotation preventing sleeve protruding from the locking nut installed in the first rotation preventing hole is provided with the rotation of the rotation preventing sleeve from the first rotation preventing hole structure;

Providing a fourth rotation stop portion that cooperates with the third rotation preventing portion on the screw;

The threaded through hole of the lock nut is screwed to the first external thread portion, and the fourth rotation end of the screw is placed in the first rotation stop hole of the lock nut, and the first rotation stop portion of the lock nut and the fourth rotation portion of the screw The rotation stop portion has a positional relationship; the rotation sleeve is mounted outside the screw provided with the fourth rotation stop portion and disposed in the first rotation stop hole, and the rotation prevention sleeve is axially restrained in the first rotation prevention hole; The rotation stop portion and the second rotation stop portion cooperate to restrain the rotation of the lock nut relative to the rotation sleeve, and the third rotation stop portion and the fourth rotation rotation portion cooperate to restrain the rotation of the rotation sleeve relative to the screw, and the screw and the lock nut are non-rotatably mounted on the screw together.
A fastening joint assembly according to claim 1, wherein said take-up structure comprises an outer peripheral portion of said rotation preventing sleeve which is disposed on said rotation preventing sleeve and which is radially protruded from said second rotation preventing portion. And a take-out space formed between the take-off resisting portion of the anti-rotation sleeve and the lock nut in the axial direction.
A fastening joint assembly according to claim 1, wherein said take-up structure comprises an outer peripheral portion of said rotation preventing sleeve which is disposed on said rotation preventing sleeve and which is radially protruded from said second rotation preventing portion. And the take-out portion radially protrudes from the outer circumference of the lock nut and the take-out space formed by the outer circumference of the lock nut.
A fastening joint assembly according to claim 1, wherein said take-up structure comprises a take-out groove provided on the rotation preventing sleeve and axially protruding the lock nut; and the take-out groove is not provided with the second stop The groove wall of the rotating portion forms a resisting portion, and the take-out groove forms a take-out space.
A fastening connection assembly according to claim 1, wherein a non-rotation shaft that cooperates with the rotation preventing through hole is provided on an end surface of the first external thread portion facing away from the abutting portion, and the fourth rotation preventing portion The outer circumference of the rotation preventing shaft is set to be smaller than or equal to the thread bottom diameter of the first external thread portion; the rotation preventing shaft is disposed in the first rotation preventing hole, and the rotation preventing sleeve is installed outside the rotation preventing shaft and is placed first Stop inside the hole.
A fastening connection assembly according to claim 1, wherein said third rotation preventing portion is a one or more axial rotation preventing bars protruding from a hole wall of the rotation preventing through hole of the rotation preventing sleeve The fourth rotation stop portion is an axial rotation preventing groove which is disposed on the first external thread portion and cooperates with the rotation preventing bar; the rotation preventing groove is a rolling forming groove, and the screw is formed The first external thread portion is rolled and formed; the rotation preventing strip on the rotation preventing sleeve extends into the rotation preventing groove of the screw to restrain the rotation of the rotation preventing sleeve relative to the screw.
A fastening joint assembly according to claim 1, wherein said hole wall of said through-stop hole is formed by a circular arc surface and a rotation preventing plane connecting the circular arc surfaces; said third rotation stop a rotation stop plane of the rotation sleeve on the hole wall of the through hole; the fourth rotation stop portion is a screw rotation stop plane disposed on the first external thread portion and engaging with the rotation stop plane of the rotation sleeve; The sleeve rotation plane cooperates with the screw rotation stop plane to restrain the rotation of the rotation sleeve relative to the screw.
A fastening connection assembly according to claim 1, wherein said fourth rotation preventing portion is a one or more axial rotation preventing grooves provided on the first external thread portion, said rotation preventing groove For the tail groove, the cross section is V-shaped, from the end of the screw The abutting portion of the screw is gradually reduced; the third rotation preventing portion is a rotation preventing bar protruding from the hole wall of the rotation preventing through hole, and the rotation preventing bar forms a concave-convex fit with the rotation preventing groove.
A fastening connection assembly according to claim 1, wherein said fastening connection assembly further comprises a rotation preventing sleeve limiting member; said rotation preventing sleeve limiting member is a snap ring or is provided Two or more buckles of the elastic buckle of the inner buckle; the snap ring or the buckle cover is mounted on the screw or the lock nut to axially limit the side of the rotation sleeve.
A fastening connection assembly according to claim 9, wherein said anti-rotation sleeve limiting member is a buckle cover of an elastic buckle provided with two or more inner buckles, and the buckle cover is provided with a cover. The accommodating space of the lock nut; the outer periphery of the lock nut is provided with a resisting portion that cooperates with the elastic snap; the elastic buckle is buckled inwardly on the resisting portion of the lock nut to axially limit the side of the retaining sleeve, The lock nut is accommodated in the accommodating space of the buckle cover.
A fastening connection assembly according to claim 1, wherein said fastening connection assembly further comprises a rotation preventing sleeve limiting member; said third rotation preventing portion being protruded from the rotation preventing sleeve One or more axial rotation preventing bars on the wall of the through hole of the through hole, wherein the fourth rotation preventing portion is an axial rotation preventing groove which is disposed on the first external thread portion and cooperates with the rotation preventing bar; The anti-rotation sleeve limiting member is a metal elastic member, and the limiting member body including the annular sheet protrudes radially from the inner circumference of the limiting member body, and is elastic toward the axial center of the limiting member body. Resisting the ribs, the end of each of the resisting ribs forms a resisting portion that cooperates with the threaded bottom of the first externally threaded portion, and one of the resisting ribs cooperates with the anti-rotation groove on the screw; the metal elastic member is mounted on Outside the first externally threaded portion of the screw, the resisting rib extends into the threaded groove of the screw to axially limit the rotation of the rotation preventing sleeve away from the locking nut; and the resisting rib that cooperates with the rotation preventing groove of the screw extends into the screw The rotation of the metal elastic member relative to the screw is restricted in the rotation stop groove.
A fastening connection assembly according to any one of claims 1 to 11, further comprising two or more expansion members and a drive nut; and a first drive cone disposed on an outer circumference of the resisting portion of the screw a second driving cone surface on the outer circumference of the driving nut;

The expansion member includes an expansion member body, an expansion sleeve abutting portion radially protruding on an outer circumference of the expansion member body, and a first expansion cone surface disposed on the inner circumference of the expansion member body and the first driving cone surface, and the first expansion cone a second driving cone surface cooperates with the second expansion taper; the expansion members are held together to form an expansion sleeve; the through hole formed by the expansion sleeve formed by the expansion joints is engaged with the first external thread portion of the screw; the expansion sleeve The corresponding expansion sleeve resisting portion is circumferentially distributed to form a broken independent ring shape;

The first externally threaded portion of the screw is threadedly coupled to the drive nut and the lock nut through the expansion sleeve.
A fastening joint structure comprising the fastening joint assembly according to any one of claims 1 to 11, wherein the fastening connection structure further comprises a base body and an attachment body; and the base body is provided with a screw a through hole engaged with the external thread portion, and the through hole provided with the first external thread portion of the screw;

The first external thread portion of the screw passes through the through hole in the female body, and the through hole on the attached body is screwed with the lock nut, and the screw and the lock nut fasten the mother body and the attachment body together; the fourth rotation is provided The screw of the portion is placed in the first rotation stop hole of the lock nut, and the first rotation stop portion of the lock nut corresponds to the positional relationship of the fourth rotation stop portion of the screw;

The rotation sleeve is installed in the first rotation stop hole of the lock nut and the screw provided with the fourth rotation stop portion, the rotation sleeve is axially restrained in the first rotation stop portion; the first rotation of the lock nut And the second rotation stop of the rotation sleeve is engaged with the rotation of the lock nut relative to the rotation sleeve, the third rotation end of the rotation sleeve and the fourth rotation end of the screw cooperate with the rotation of the restriction screw relative to the rotation sleeve, the screw and the screw The lock nuts are non-rotatably mounted together.
A track structure comprising the fastening joint assembly according to any one of claims 1 to 11, characterized in that the track structure further comprises a backing plate for supporting the rail, a lower rail pad, a guide rail , the insulating block, the elastic strip; the fastening connection assembly further comprises a rotation preventing sleeve limiting member; the screw is a T-shaped screw;

a bottom surface of the backing plate is provided with a rotation preventing groove which communicates with the through hole and cooperates with the resisting portion; and a through hole which cooperates with the first external threaded portion of the screw is provided on both sides of the backing plate, and is provided on the bottom surface of the backing plate a through-rotating groove communicating with the through hole and engaging with the resisting portion, the through hole adjacent to each side between the corresponding two through holes is provided with a resisting convex portion; the two outer sides of the through holes on opposite sides of the backing plate are opposite There is a spring support portion, and the through hole on the pad plate is disposed between the resisting convex portion on the same side and the elastic bar support portion;

The pad is mounted on the foundation, the under-rail pad is mounted on the pad, the rail is mounted on the under-rail pad, the under-rail pad and the rail are placed between the two resisting projections of the pad; the insulating blocks are respectively mounted on the rail Between the two sides of the pad and the two resisting protrusions of the pad, the two sides of the pad resist the convex portion to limit the insulating blocks on both sides, and the two insulating blocks limit the two sides and the top surface of the guide rail;

The resisting portion of the screw passes through the through hole of the backing plate from the top to the bottom and is rotatably mounted in the rotation preventing groove; the first external thread portion of the screw is screwed upward through the elastic bar and the lock nut, and the elastic bar is supported at the corresponding The insulating block and the spring supporting portion are arranged; or the two outer sides of the through holes on the two sides of the backing plate are provided with a gauge baffle, and the through holes on the backing plate are placed on the same side of the resisting convex portion and the gauge baffle The first external thread portion is threaded upwardly through the elastic strip and the lock nut, and the elastic strip is supported on the corresponding insulating block and the gauge baffle;

The screw and the lock nut fasten and fasten the pad, the under-bolt plate, the guide rail, the insulating block and the elastic strip; the screw provided with the fourth rotation-stopping portion is placed in the first rotation-stop hole of the lock nut, and the lock The first rotation stop portion of the tightening nut corresponds to the positional relationship of the fourth rotation stop portion of the screw; the resisting portion and the rotation preventing groove cooperate to restrain the rotation of the screw relative to the backing plate;

The rotation sleeve is installed outside the screw provided with the fourth rotation stop portion and placed in the first rotation stop hole; the rotation sleeve is axially restrained outside the screw provided with the fourth rotation stop portion and the first rotation stop hole The first rotation stop of the lock nut cooperates with the second rotation stop of the rotation sleeve to restrain the rotation of the lock nut relative to the rotation sleeve, and the third rotation stop of the rotation sleeve cooperates with the fourth rotation end of the screw The screw rotates relative to the rotation sleeve, and the screw and the lock nut are non-rotatably mounted together.
A track structure comprising the fastening joint assembly according to any one of claims 1 to 11, characterized in that the track structure further comprises a pre-embedded sleeve, a backing plate for carrying the rail;

Providing a through hole that cooperates with the first external thread portion of the screw on both sides of the pad;

The pre-embedded sleeve is embedded in a blind hole on the foundation corresponding to the through hole of the backing plate, and a hole is arranged in the pre-embedded sleeve, and the hole of the pre-embedded sleeve is provided with the expansion sleeve resisting portion. Annular resisting groove;

The first external thread portion of the screw is threadedly connected to the driving nut through the expansion sleeve, and the resisting portion of the screw and the first driving taper surface, the expansion sleeve and the driving nut are installed in the hole in the pre-embedded sleeve; The first expansion cone of the expansion sleeve is hung on the first driving cone surface of the screw, and the second expansion cone of the expansion sleeve is huged on the second driving cone surface of the driving nut; the first driving cone surface is relatively first The expansion taper surface slides, the second drive cone surface drives the expansion sleeve expansion relative to the second expansion cone surface sliding, and in the fully expanded state of the expansion sleeve, the expansion sleeve resisting portion extends into the resisting groove of the pre-embedded sleeve to pass through the surface and the surface The anti-locking portion of the expansion sleeve is axially resisted by the upper abutting groove of the pre-embedded sleeve, and the screw, the expansion sleeve and the driving nut are fixedly connected with the pre-embedded sleeve, and the resisting portion of the screw is expanded. Set of axial resistance;

The first external thread portion of the screw is threadedly connected to the lock nut through a through hole in the backing plate, the lock nut axially resists the backing plate, and the screw, the expansion sleeve and the lock nut are fastened to the backing plate and the pre-embedded sleeve connected.
A crankshaft linkage mechanism comprising the fastening connection assembly according to any one of claims 1 to 11, wherein the crankshaft linkage mechanism comprises a crankshaft, a link set, and a fastening connection assembly; The connecting rod set comprises a connecting rod body, a connecting rod big head cover and a connecting rod big head bearing bush; the connecting rod body comprises a connecting rod big head and a connecting rod small head, the connecting rod has a through hole on the big head; the connecting rod big head cover is provided with a through hole; The fastening connection assembly further includes a rotation preventing sleeve limiting member;

The connecting rod big head bush is wrapped outside the crankshaft, and the connecting rod big head and the connecting rod big head cover are wrapped outside the connecting rod big head bush;

The screw has one end of the first external threaded portion passing through the through hole on the big end of the connecting rod, and the through hole on the big head cover of the connecting rod is screwed with the locking nut, and the screw and the locking nut tightly close the connecting rod body and the connecting rod Solidly connected together; a screw with a fourth rotation stop is placed a first rotation stop of the lock nut corresponds to a positional relationship of the fourth rotation stop of the screw;

The rotation preventing sleeve is installed outside the screw provided with the fourth rotation preventing portion and placed in the first rotation preventing hole, and the rotation preventing sleeve limiting member is mounted with the screw or is mounted with the connecting rod big head cover to the rotation preventing sleeve Side axial limit;

The first rotation stop of the lock nut cooperates with the second rotation stop of the rotation sleeve to restrain the rotation of the lock nut relative to the rotation sleeve, and the third rotation end of the rotation sleeve cooperates with the fourth rotation end of the screw to restrain the screw The screw and the lock nut are non-rotatably mounted together with respect to the rotation of the rotation sleeve.
A bone connecting device comprising the fastening connection assembly according to any one of claims 1 to 11, wherein the bone connecting device further comprises a connecting member; the fastening connecting assembly further comprising a rotation preventing sleeve Limiting piece

Two or more through holes are formed on the connecting member for engaging with the first external thread portion of the screw; the through holes on one of the connecting members correspond to one of the screw, the lock nut, the rotation preventing sleeve and the rotation preventing sleeve Limiting piece

The first external thread portion of the screw is threadedly connected with the threaded through hole of the lock nut through a corresponding through hole in the connecting member, and the screw provided with the fourth rotation preventing portion is placed in the first rotation preventing hole of the lock nut, the lock The first rotation stop of the tightening nut corresponds to the positional relationship of the fourth rotation stop of the screw; the rotation sleeve is installed outside the screw provided with the fourth rotation stop and is placed in the first rotation stop hole; The component is mounted on the screw or the connecting member to axially limit the rotation sleeve; the third rotation stop portion and the fourth rotation rotation portion cooperate to restrain the rotation sleeve from rotating relative to the screw, and the first rotation stop portion cooperates with the second rotation rotation portion The restraining lock nut rotates relative to the rotation sleeve, and the screw and the lock nut are non-rotatably mounted together.
A bone joining method using the bone connecting device of the fastening joint assembly according to claim 17, wherein the connecting method comprises the following steps:

The first external thread portion of one screw passes through the through hole in the connecting member, and one broken bone is screwed to the lock nut, and the screw fastens the broken bone to the connecting member; the first external thread of the other screw Passing through another through hole in the connecting member, and the other broken bone is screwed to the lock nut, and the screw fastens the other broken bone to the connecting member;

a screw provided with a fourth rotation stop portion is disposed in the corresponding first rotation stop hole, and a fourth rotation stop portion of the screw corresponds to a positional relationship of the first rotation stop portion of the corresponding first rotation stop hole;

Mounting the anti-rotation sleeve outside the screw provided with the fourth rotation-stopping portion and placing it in the first rotation-stopping hole; mounting the anti-rotation sleeve limiting member on the screw or the connecting member to axially limit the rotation-proof sleeve;

The third rotation stop portion and the fourth rotation rotation portion cooperate to restrain the rotation sleeve from rotating relative to the screw, and the first rotation stop portion and the second rotation rotation portion cooperate to restrain the rotation of the lock nut relative to the rotation sleeve, and the screw and the lock nut are non-rotatably Installed together.