CN111237539A - Valve rod and valve plug connecting structure and assembling method - Google Patents
Valve rod and valve plug connecting structure and assembling method Download PDFInfo
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- CN111237539A CN111237539A CN202010064581.0A CN202010064581A CN111237539A CN 111237539 A CN111237539 A CN 111237539A CN 202010064581 A CN202010064581 A CN 202010064581A CN 111237539 A CN111237539 A CN 111237539A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a valve rod and valve plug connecting structure and an assembling method, which are used for solving the problem of reliability of a valve with the valve plug and valve rod connecting structure in the prior art. The present invention provides a valve stem and plug connecting structure, comprising: the valve plug is provided with an inner hole, the inner wall of the inner hole is provided with an axial groove along the axial direction, one end of the axial groove in the axial direction is flush with the orifice of the inner hole, and the axial length of the axial groove in the axial direction is smaller than that of the inner hole; valve rod, including big axial region and little axial region, big axial region with little axial region forms first step, and little axial region can pass the hole just big axial region card is in outside the hole, be equipped with the external screw thread on the little axial region, be equipped with the holding tank on the little axial region, the holding tank embeds there is the screens piece, the nut, be used for with little axial region the external screw-thread fit, the nut is including only changeing the structure, only changeing the structure and being used for the restriction the displacement of rotation of nut. Has the characteristic of high reliability.
Description
Technical Field
The invention relates to the field of valves, in particular to a valve rod and valve plug connecting structure and an assembling method.
Background
Traditional valve plug is connected with the valve rod and adopts the screw thread to add the welding mode and be connected and fixed, and processing has guide structure on the valve rod, and terminal processing external screw thread. The valve plug is provided with a guide step hole, and the tail end of the valve plug is provided with an internal thread. The valve rod is arranged in the valve plug, the thread is screwed, and the tail end is welded, so that the purpose of fixing the valve plug and the valve rod is achieved.
Above design mainly leans on the welding to fix two parts, can produce the deformation because of the valve rod is heated during the welding, lets the valve rod right-hand member end produce the deviation with the valve plug axiality, and especially the valve rod is longer, and the axiality deviation is bigger. Meanwhile, the performance of the welding seam is influenced by too many factors, such as the level of a welding operator, the influence of the material composition of parts, the influence of the composition of welding materials, the corrosion of a field medium to the welding seam (the chemical industry is very serious), and the long-term use stability and reliability of the structure are seriously influenced. If the connection is in a problem, the valve can be in a fault, and the field production and safety are affected.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a valve stem and plug connection structure and an assembling method thereof, which are used to solve the problem of valve reliability of the valve stem and plug connection structure in the prior art.
To achieve the above and other related objects, the present invention provides a valve stem and plug coupling structure, comprising:
the valve plug is provided with an inner hole, the inner wall of the inner hole is provided with an axial groove along the axial direction, one end of the axial groove in the axial direction is flush with the orifice of the inner hole, and the axial length of the axial groove in the axial direction is smaller than that of the inner hole;
the valve rod comprises a large shaft part and a small shaft part, the large shaft part and the small shaft part form a first step, the small shaft part can penetrate through the inner hole, the large shaft part is clamped outside the inner hole, the small shaft part is provided with an external thread, the small shaft part is provided with a containing groove, a clamping part is arranged in the containing groove, and when the small shaft part penetrates into the inner hole, the clamping part can be clamped at the axial groove bottom position of the axial groove along the axial groove;
the nut is used for being matched with the external thread of the small shaft part, the nut comprises a rotation stopping structure, and the rotation stopping structure is used for limiting the rotation displacement of the nut.
Optionally, the clamping piece is of a spherical structure, the axial groove is an arc-shaped groove, and the inner wall of the accommodating groove is of a cylindrical surface structure.
Optionally, the nut includes a body portion and an annular protrusion, a first central hole is formed in the inner side of the body portion, the annular protrusion and the body portion are coaxially fixed, a second central hole is formed in the inner side of the annular protrusion, both the first central hole and the second central hole are threaded holes, or only the first central hole is a threaded hole, and the annular protrusion can deform;
the small shaft part is provided with a rotation stopping groove, and the annular protruding part can deform under the action of external force and is partially embedded into the rotation stopping groove.
Optionally, the wall thickness of the annular protrusion is 0.5-1 mm.
Optionally, the rotation stopping groove includes a first inclined groove and a second inclined groove, and the first inclined groove and the second inclined groove are inclined in the forward rotation direction and the backward rotation direction, respectively.
Optionally, the groove depth of one end of the rotation stopping groove close to the end of the valve rod is greater than the groove depth of the extending part of the rotation stopping groove towards the other end.
Optionally, the groove depth of one end of the rotation stopping groove close to the end of the valve rod is equal to the groove depth of the extending part of the rotation stopping groove towards the other end.
Optionally, a partial groove depth or a full groove depth of the rotation stopping groove is larger than a tooth depth of the external thread.
Optionally, the small shaft part comprises a first small shaft and a second small shaft, the diameter of the first small shaft is smaller than that of the second small shaft, and the diameter of the second small shaft is smaller than that of the large shaft part;
the inner hole is a stepped hole and comprises a large hole and a small hole, when the small shaft part penetrates into the inner hole, the first small shaft penetrates through the small hole, the second small shaft penetrates into the large hole, and the length of the second small shaft is smaller than the axial length of the large hole;
the accommodating groove is formed in the first small shaft.
A method of assembling a valve stem plug coupling structure comprising the steps of:
adjusting the placing posture of the valve plug to enable the axial groove to be positioned on the upper side of the inner hole;
adjusting the posture of the valve rod to enable the notch of the accommodating groove to be upward, and placing the clamping piece into the accommodating groove;
the clamping piece is aligned to the axial groove position, and the valve rod is axially inserted into the inner hole until the end face of the large shaft part is contacted with the end face of the valve plug;
and screwing a nut from the end part of the valve rod and locking the nut through a rotation stopping structure.
As described above, the valve stem and plug connection structure and the assembling method of the present invention at least have the following advantages:
the stair structure through the valve rod has realized the displacement restriction of valve rod axial one direction, realize the displacement restriction to another direction of valve rod through nut and valve rod cooperation, through the axial groove, the restriction of the displacement of rotation of valve rod has been realized in the cooperation of screens piece and holding tank, and the axial groove, screens piece and holding tank cooperation make can only set up a holding tank on the valve rod and can realize the displacement restriction of rotation, make the valve rod can guarantee better structural strength, thereby the reliability has been improved, and this scheme whole journey does not need the welding, can avoid the unreliable factor that the welding produced, effectively solve the problem of valve plug and valve rod connection structure valve reliability among the prior art.
Drawings
FIG. 1 is a schematic view of a valve stem plug coupling configuration of the present invention.
FIG. 2 illustrates a cross-sectional view of a valve plug of the present invention.
FIG. 3 shows an end view of the valve plug and valve stem assembly of the present invention.
Fig. 4 shows a schematic view of a valve stem of the present invention.
Fig. 5 is a schematic view of a detent groove of the valve stem of the present invention.
Fig. 6 shows a schematic view of a nut of the present invention.
Element number description: the valve plug 1, the valve rod 2, the nut 3, the inner hole 11, the axial groove 111, the large shaft part 21, the small shaft part 22, the external thread 221, the accommodating groove 222, the clamping part 2221, the body part 31, the annular protrusion part 32, the first central hole 311, the second central hole 321, the first inclined groove 2231, the second inclined groove 2232, the first small shaft 224, the second small shaft 225, the large hole 112 and the small hole 113.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so as to be understood and read by those skilled in the art, and therefore, the present disclosure is not limited to the conditions of the present disclosure, and any modifications of the structures, the changes of the ratios, or the adjustments of the sizes, should fall within the scope of the present disclosure without affecting the functions and the achievable purposes of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.
Referring to fig. 1 to 4, the present invention provides an embodiment of a stem plug connection structure, including: the valve comprises a valve plug 1, a valve rod 2 and a nut 3, wherein the valve plug 1 is provided with an inner hole 11, the inner wall of the inner hole 11 is provided with an axial groove 111 along the axial direction, one end of the axial groove 111 in the axial direction is flush with the orifice of the inner hole 11, and the axial length of the axial groove 111 in the axial direction is smaller than that of the inner hole 11; the valve rod 2 comprises a large shaft part 21 and a small shaft part 22, the large shaft part 21 and the small shaft part 22 form a first step, the small shaft part 22 can penetrate through the inner hole 11, the large shaft part 21 is clamped outside the inner hole 11, an external thread 221 is arranged on the small shaft part 22, an accommodating groove 222 is arranged on the small shaft part 22, a clamping part 2221 is arranged in the accommodating groove 222, and when the small shaft part 22 penetrates through the inner hole 11, the clamping part 2221 can be clamped at the axial groove bottom position of the axial groove 111 along the axial groove 111; the nut 3 is used for matching with the external thread 221 of the small shaft part 22, and the nut 3 comprises a rotation stopping structure which is used for limiting the rotation displacement of the nut 3. The stair structure through valve rod 2 has realized the displacement restriction of a direction of valve rod 2 axial, realize the displacement restriction to another direction of valve rod 2 through nut 3 and the cooperation of valve rod 2, through axial groove 111, the restriction of the displacement of rotation of valve rod 2 has been realized in the cooperation of screens piece 2221 and holding tank 222, and axial groove 111, screens piece 2221 and holding tank 222 cooperation make can only set up a holding tank 222 and can realize the displacement restriction of rotation on valve rod 2, make valve rod 2 can guarantee better structural strength, thereby the reliability is improved, and this scheme whole journey does not need the welding, can avoid the unreliable factor that the welding produced, effectively solve the problem of valve plug 1 and valve rod 2 connection structure valve reliability among the prior art.
In this embodiment, referring to fig. 1 and fig. 2, the locking member 2221 is a spherical structure, which may be a steel ball, the axial groove 111 is an arc-shaped groove, and the inner wall of the accommodating groove 222 is a cylindrical surface structure. The cylindrical surface structure is convenient to process, the assembling precision is higher, and the assembling can be successfully carried out under a smaller assembling clearance, so that the precision of the limiting structure of the valve rod 2 on the rotary displacement is ensured.
In this embodiment, referring to fig. 6, the nut 3 includes a body 31 and an annular protrusion 32, a first central hole 311 is formed in the inner side of the body 31, the annular protrusion 32 and the body 31 are coaxially fixed, a second central hole 321 is formed in the inner side of the annular protrusion 32, both the first central hole 311 and the second central hole 321 are threaded holes, or only the first central hole 311 is a threaded hole, and the annular protrusion 32 can deform; the small shaft part 22 is provided with a rotation stopping groove 223, and the annular convex part 32 can be deformed under the action of external force and is partially embedded into the rotation stopping groove 223. The deformation is embedded into the rotation stopping groove 223 under the action of external force, and the external tool similar to a clamp structure can be used for working the external tool. When the deformed portion of the annular protrusion 32 is fitted into the rotation stop groove 223, the rotational displacement of the nut 3 is restricted, thereby preventing the valve from rotating during use, and thus providing higher reliability.
In this embodiment, referring to FIG. 6, the wall thickness of the annular protrusion 32 is 0.5-1 mm. When guaranteeing the intensity of splines structure, still guarantee to let annular bulge 32 can warp under the effect of external force, if thickness is too thick then need bigger power to let it warp to lead to the inconvenient problem of assembly.
In this embodiment, referring to fig. 5, the rotation-preventing groove 223 includes a first chute 2231 and a second chute 2232, and the first chute 2231 and the second chute 2232 are inclined in the forward rotation direction and the reverse rotation direction, respectively. By designing the first and second chutes 2231, 2232 so that they can rotationally restrict the nut 3 in both forward and reverse directions, the chute configuration allows the annular protrusion 32 to be more easily deformed and inserted into the chute.
In this embodiment, referring to fig. 5, the groove depth of the rotation stopping groove 223 at one end close to the end of the valve rod 2 is greater than the groove depth of the portion of the rotation stopping groove 223 extending toward the other end. This kind of structure can let annular bulge 32 part warp greatly, and partial deformation is little, can change laborsavingly when exerting external force to annular bulge 32, also can guarantee spacing effect simultaneously. In fig. 5, a gradual change structure is adopted, the groove depth at one end close to the end of the valve rod 2 is deepest, and then the rotation stopping groove 223 at the extending part towards the other end is gradually shallow, so that the manufacture can be realized only by obliquely cutting a cutter during the manufacture, and the processing is convenient.
In this embodiment, the depth of the rotation stopping groove 223 at one end close to the end of the valve rod 2 is equal to the depth of the portion of the rotation stopping groove 223 extending toward the other end.
In this embodiment, referring to fig. 5, a partial groove depth or a full groove depth of the rotation-stopping groove 223 is greater than a tooth depth of the external thread 221. Has better clamping effect.
In this embodiment, referring to fig. 1 and 4, the small shaft part 22 includes a first small shaft 224 and a second small shaft 225, the diameter of the first small shaft 224 is smaller than that of the second small shaft 225, and the diameter of the second small shaft 225 is smaller than that of the large shaft part 21; the inner hole 11 is a stepped hole, the inner hole 11 comprises a large hole 112 and a small hole 113, when the small shaft part 22 penetrates into the inner hole 11, the first small shaft 224 penetrates through the small hole 113, the second small shaft 225 penetrates into the large hole 112, and the length of the second small shaft 225 is smaller than the axial length of the large hole 112; the receiving groove 222 is disposed on the first small shaft 224. Divide into first staff 224 and second staff 225 through little axial region 22, just hole 11 includes macropore 112 and aperture 113, set up on the first staff 224 external screw 221, when external screw 221 processing and hole 11 processing, because the existence of machining error, external screw 221 department can not enter into in the hole 11, through the setting of macropore 112 and aperture 113, even make external screw 221 and hole 11 have the processing certain limit error to exist, it only needs to guarantee that external screw 221 part can pass aperture 113 can, the machining precision requirement in macropore 112 position reduces, thereby reduce the processing degree of difficulty.
A method of assembling a valve stem 2 and a plug 1 coupling structure, comprising the steps of:
adjusting the position of the valve plug 1 so that the axial groove 111 is located on the upper side of the inner hole 11;
adjusting the posture of the valve rod to make the notch of the receiving groove 222 upward, and placing the position-locking member 2221 into the receiving groove 222;
the position of the blocking part 2221 is aligned with the position of the axial groove 111, and the valve rod is axially inserted into the inner hole 11 until the end face of the large shaft part 21 is contacted with the end face of the valve plug 1;
the nut 3 is screwed in from the end of the valve stem and locked by the rotation stop structure.
The assembly mode can realize assembly without welding participation, and the reliability of the valve is ensured.
In summary, the present invention realizes the displacement limitation of the valve rod 2 in one axial direction through the step structure of the valve rod 2, realizes the displacement limitation of the valve rod 2 in another axial direction through the cooperation of the nut 3 and the valve rod 2, realizes the rotation displacement limitation of the valve rod 2 through the cooperation of the axial groove 111, the retaining part 2221 and the accommodating groove 222, and realizes the rotation displacement limitation only by arranging one accommodating groove 222 on the valve rod 2 through the cooperation of the axial groove 111, the retaining part 2221 and the accommodating groove 222, so that the valve rod 2 can ensure good structural strength, thereby improving reliability, and the present scheme does not need welding in the whole process, can avoid unreliable factors generated by welding, and effectively solves the problem of reliability of the valve in the connection structure of the valve plug 1 and the valve rod 2 in the prior art. Therefore, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A valve stem and plug connection, comprising:
the valve plug is provided with an inner hole, the inner wall of the inner hole is provided with an axial groove along the axial direction, one end of the axial groove in the axial direction is flush with the orifice of the inner hole, and the axial length of the axial groove in the axial direction is smaller than that of the inner hole;
the valve rod comprises a large shaft part and a small shaft part, the large shaft part and the small shaft part form a first step, the small shaft part can penetrate through the inner hole, the large shaft part is clamped outside the inner hole, the small shaft part is provided with an external thread, the small shaft part is provided with a containing groove, a clamping part is arranged in the containing groove, and when the small shaft part penetrates into the inner hole, the clamping part can be clamped at the axial groove bottom position of the axial groove along the axial groove;
the nut is used for being matched with the external thread of the small shaft part, the nut comprises a rotation stopping structure, and the rotation stopping structure is used for limiting the rotation displacement of the nut.
2. The valve stem plug connection of claim 1, wherein: the screens piece is the spheroid structure, the axial slot is the arc wall, the holding tank inner wall is face of cylinder structure.
3. The valve stem plug connection of claim 1, wherein: the nut comprises a body part and an annular protrusion part, wherein a first central hole is formed in the inner side of the body part, the annular protrusion part and the body part are coaxially fixed, a second central hole is formed in the inner side of the annular protrusion part, the first central hole and the second central hole are both threaded holes, or only the first central hole is a threaded hole, and the annular protrusion part can deform;
the small shaft part is provided with a rotation stopping groove, and the annular protruding part can deform under the action of external force and is partially embedded into the rotation stopping groove.
4. The valve stem plug connection of claim 3, wherein: the wall thickness of the annular bulge is 0.5-1 mm.
5. The valve stem plug connection of claim 3, wherein: the rotation stopping groove includes a first inclined groove and a second inclined groove, and the first inclined groove and the second inclined groove are respectively inclined in a forward rotation direction and a reverse rotation direction.
6. The valve stem plug connection of claim 5, wherein: the groove depth of one end of the rotation stopping groove close to the end part of the valve rod is larger than the groove depth of the extending part of the rotation stopping groove towards the other end.
7. The valve stem plug connection of claim 5, wherein: the groove depth of one end of the rotation stopping groove close to the end part of the valve rod is equal to the groove depth of the extending part of the rotation stopping groove towards the other end.
8. The valve stem plug connection according to any one of claims 3 to 7, wherein: the partial groove depth or the whole groove depth of the rotation stopping groove is larger than the tooth depth of the external thread.
9. The valve stem plug connection of claim 1, wherein: the small shaft part comprises a first small shaft and a second small shaft, the diameter of the first small shaft is smaller than that of the second small shaft, and the diameter of the second small shaft is smaller than that of the large shaft part;
the inner hole is a stepped hole and comprises a large hole and a small hole, when the small shaft part penetrates into the inner hole, the first small shaft penetrates through the small hole, the second small shaft penetrates into the large hole, and the length of the second small shaft is smaller than the axial length of the large hole;
the accommodating groove is formed in the first small shaft.
10. A method of assembling a valve stem plug coupling structure according to any one of claims 1 to 9, comprising the steps of:
adjusting the placing posture of the valve plug to enable the axial groove to be positioned on the upper side of the inner hole;
adjusting the posture of the valve rod to enable the notch of the accommodating groove to be upward, and placing the clamping piece into the accommodating groove;
the clamping piece is aligned to the axial groove position, and the valve rod is axially inserted into the inner hole until the end face of the large shaft part is contacted with the end face of the valve plug;
and screwing a nut from the end part of the valve rod and locking the nut through a rotation stopping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064581.0A CN111237539A (en) | 2020-01-20 | 2020-01-20 | Valve rod and valve plug connecting structure and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064581.0A CN111237539A (en) | 2020-01-20 | 2020-01-20 | Valve rod and valve plug connecting structure and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111237539A true CN111237539A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010064581.0A Pending CN111237539A (en) | 2020-01-20 | 2020-01-20 | Valve rod and valve plug connecting structure and assembling method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111237539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975302A (en) * | 2020-08-26 | 2020-11-24 | 重庆川仪调节阀有限公司 | Machining method based on sleeve type valve plug part |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09287669A (en) * | 1996-04-23 | 1997-11-04 | Toshiba Corp | Valve device |
| CN101070918A (en) * | 2006-05-12 | 2007-11-14 | 中核苏阀科技实业股份有限公司 | Nulcear-cascade pressure stabilizer electric pressure-release valve |
| CN105570262A (en) * | 2015-03-17 | 2016-05-11 | 杭州斯泰新材料技术有限公司 | Pressing and fixing nut bolt |
| CN105880454A (en) * | 2015-02-12 | 2016-08-24 | 费希尔控制产品国际有限公司 | Valve stem and plug connections and staking tools |
| CN106246697A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN106246690A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, spline structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN106438638A (en) * | 2015-08-06 | 2017-02-22 | 杨东佐 | Fastening and connecting assembly and structure, disassembling method, track structure, crankshaft connecting rod system, bone connecting device and bone connecting method |
| CN208619702U (en) * | 2017-03-16 | 2019-03-19 | 费希尔控制产品国际有限公司 | Device for tapered cup nut valve |
| CN110573755A (en) * | 2017-03-02 | 2019-12-13 | 埃杜拉洛克有限责任公司 | Locking fastener with deflectable locking member |
| CN209875676U (en) * | 2019-05-05 | 2019-12-31 | 陈建军 | Bolt self-locking anti-loosening structure |
| CN210687231U (en) * | 2020-01-20 | 2020-06-05 | 重庆川仪调节阀有限公司 | Valve rod and valve plug connecting structure |
-
2020
- 2020-01-20 CN CN202010064581.0A patent/CN111237539A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09287669A (en) * | 1996-04-23 | 1997-11-04 | Toshiba Corp | Valve device |
| CN101070918A (en) * | 2006-05-12 | 2007-11-14 | 中核苏阀科技实业股份有限公司 | Nulcear-cascade pressure stabilizer electric pressure-release valve |
| CN105880454A (en) * | 2015-02-12 | 2016-08-24 | 费希尔控制产品国际有限公司 | Valve stem and plug connections and staking tools |
| CN105570262A (en) * | 2015-03-17 | 2016-05-11 | 杭州斯泰新材料技术有限公司 | Pressing and fixing nut bolt |
| CN106438638A (en) * | 2015-08-06 | 2017-02-22 | 杨东佐 | Fastening and connecting assembly and structure, disassembling method, track structure, crankshaft connecting rod system, bone connecting device and bone connecting method |
| CN106246697A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN106246690A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, spline structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN110573755A (en) * | 2017-03-02 | 2019-12-13 | 埃杜拉洛克有限责任公司 | Locking fastener with deflectable locking member |
| CN208619702U (en) * | 2017-03-16 | 2019-03-19 | 费希尔控制产品国际有限公司 | Device for tapered cup nut valve |
| CN209875676U (en) * | 2019-05-05 | 2019-12-31 | 陈建军 | Bolt self-locking anti-loosening structure |
| CN210687231U (en) * | 2020-01-20 | 2020-06-05 | 重庆川仪调节阀有限公司 | Valve rod and valve plug connecting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975302A (en) * | 2020-08-26 | 2020-11-24 | 重庆川仪调节阀有限公司 | Machining method based on sleeve type valve plug part |
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