CN209778069U - Self-adjusting clamp - Google Patents

Abstract

The utility model relates to a self-modulation anchor clamps, its characterized in that: the self-adjusting clamp comprises two groups of short arm transmission steel plates, a first long arm transmission steel plate, a second long arm transmission steel plate, a first clamping plate and a second clamping plate; the tops of the two groups of short arm transmission steel plates are hinged through a first rotating shaft, the first rotating shaft is provided with a lifting lug and a first shaft sleeve, and the first shaft sleeve is provided with an operating rod and a lifting hook; the top parts of the first long arm transmission steel plate and the second long arm transmission steel plate are respectively hinged with one group of short arm transmission steel plates, the crossing positions are hinged through a third rotating shaft, the parts below the crossing positions of the first long arm transmission steel plate and the second long arm transmission steel plate are hinged through a fourth rotating shaft to be connected with a limiting box, and a lifting hook is matched with the third rotating shaft; the first clamping plate is hinged with the first long arm transmission steel plate, and the second clamping plate is fixed with the second long arm transmission steel plate. The structure realizes the automatic adjustment of the size of the clamping state, reduces the abrasion of the rubber plate of the clamp, and avoids the problems of object damage, sliding and the like.

Description

Self-adjusting clamp

Technical Field

The utility model belongs to the technical field of green assembled building construction anchor clamps equipment, more specifically say, relate to a self-modulation anchor clamps.

Background

With the modernization of cities and the high-speed development of underground rail transit, the shield method increasingly becomes a main method for underground engineering and tunnel construction in China due to the advanced construction process, higher construction efficiency and safety and environmental protection. The prefabricated segment is as the most main and most key structural component of shield tunnel, and the quality of its performance has decisive influence to engineering quality and tunnel service life, and the transport and the transportation of prefabricated segment also should be very careful.

in order to ensure accurate machining positions, a corresponding clamp is designed and manufactured according to specific sizes of workpieces in the conventional method, a clamp must be specially manufactured for workpieces of various specifications, and clamps of workpieces of different specifications cannot be commonly used, so that a plurality of clamps of manufacturers are required, the management is complex, and the clamp manufacturing cost of the manufacturers and the research and development and manufacturing time of the clamps are increased. And because the size of the tight state of traditional anchor clamps mostly can not automatically regulated anchor clamps, after long-term use wearing and tearing grow, rubber slab wearing and tearing, the angle of the tight state of anchor clamps can change, and the stress face that anchor clamps pressed from both sides tight object diminishes, leads to local atress grow, causes the damage to the object, still has the potential safety hazard of object landing when anchor clamps press from both sides tight object and shift.

The 201210545019.5 patent discloses a clamp with self-adjusting position to meet the processing requirements of various workpieces, reduce the time for manufacturers to develop and manufacture the clamp, and reduce the cost of the manufacturers. The utility model discloses a clamp with self-adjusting position, which comprises an upper clamp plate, a workbench and a lower clamp plate, wherein the upper clamp plate, the workbench and the lower clamp plate are sequentially arranged from top to bottom; the middle part of the workbench is provided with a through hole for a workpiece to be processed to pass through, the workbench or the upper clamping plate is fixedly arranged by utilizing a bracket, and the lower clamping plate is connected with a driving device so as to enable the lower clamping plate to move up and down; the workstation is connected with punch holder, lower plate through the rhombus support of its both sides to when guaranteeing that the lower plate reciprocates any position, the workstation all is located the intermediate position of lower plate and punch holder, satisfies the needs of processing.

the core technology of above-mentioned patent is through motor drive and the interval of adjustment between upper plate and the lower plate, and then can clip the object of various sizes, and above-mentioned device needs the motor cooperation to provide when cliping the object, and at whole in-process of pressing from both sides, the motor can not shut down, consumes the energy, and is strict to the motor requirement.

Disclosure of Invention

the utility model aims to provide a self-modulation anchor clamps that long-term operation safety and stability, accessory change frequency are low to the difficult defects such as control of traditional anchor clamps clamp size, change accessory frequently.

In order to achieve the purpose, the utility model provides a technical scheme does:

The utility model relates to a self-adjusting clamp, which comprises two groups of short arm transmission steel plates, a first long arm transmission steel plate, a second long arm transmission steel plate, a first clamping plate and a second clamping plate; the tops of the two groups of short arm transmission steel plates are hinged through a first rotating shaft, a lifting lug and a first shaft sleeve are sleeved on an outer ring of the first rotating shaft, and an operating rod and a lifting hook are arranged on the first shaft sleeve; the first long arm transmission steel plate and the second long arm transmission steel plate are arranged in a crossed mode, the top portions of the first long arm transmission steel plate and the second long arm transmission steel plate are respectively hinged with the bottom ends of one group of short arm transmission steel plates through a second rotating shaft, the crossed position is hinged through a third rotating shaft, the parts below the crossed position of the first long arm transmission steel plate and the second long arm transmission steel plate are hinged through a fourth rotating shaft and are connected with a limiting box, and a lifting hook is matched with the third rotating shaft; the first clamping plate is hinged to the bottom of the first long arm transmission steel plate through a fifth rotating shaft, and the second clamping plate is fixed to the bottom of the second long arm transmission steel plate.

Preferably, the first clamping plate comprises a first rubber plate seat and a first rubber plate, the first rubber plate seat and the first rubber plate are fixed through bolts, the outer side surface of the first rubber plate seat is provided with at least two rotary hole rib plates arranged at intervals along the horizontal direction, and the rotary hole rib plates are provided with round holes with the same height; the outer ring of the fifth rotating shaft is sleeved with a fourth shaft sleeve, the outer diameter of the fourth shaft sleeve is matched with the aperture of the round hole, and the rotary hole rib plate is sleeved on the fourth shaft sleeve. The first rubber plate can prevent the surface of the clamped object from being damaged, and scratches, marks and the like on the surface of the clamped object are avoided; the first clamping plate is connected with the first long arm transmission steel plate in a hinged mode, is suitable for clamping objects in various shapes, and can avoid damage to the objects.

Preferably, the second clamping plate comprises a second rubber plate seat and a second rubber plate, the second rubber plate seat and the second rubber plate are fixed through bolts, and the back of the second rubber plate seat is provided with at least two rib plates which are vertically spaced and transversely arranged; and the bottom end of the second long-arm transmission steel plate is provided with a clamping groove corresponding to the rib plate, and the rib plate is inserted into the clamping groove and is welded and fixed. The second rubber sheet can prevent to cause the damage to the object surface of being held by, avoids its surface to appear mar, seal of a government organization in old china etc..

Preferably, the outer ring of the second rotating shaft is sleeved with a second shaft sleeve, the outer ring of the third rotating shaft is sleeved with a third shaft sleeve, and the second shaft sleeve and the third shaft sleeve are the same in length.

preferably, the first long arm transmission steel plate comprises a first long arm steel plate body and a first bending part, the first clamping plate is hinged to the first bending part, and a protection steel plate is welded on the outer side of the first bending part; the second long arm transmission steel plate comprises a second long arm steel plate body and a second bending part, and the second clamping plate is welded at the second bending part.

preferably, the limiting box comprises a limiting box body, and a third rubber plate is arranged at the bottom of the limiting box body.

Preferably, the operating rod and the hook are arranged at an included angle of 90 degrees.

Preferably, the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft and the fifth rotating shaft are provided at both ends thereof with a gasket and a hairpin pin.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

The utility model relates to a prefabricated section of jurisdiction self-modulation anchor clamps, directly lift by crane through the lug, under the action of gravity of spacing box, first long arm transmission steel sheet, angle automatically regulated between second long arm transmission steel sheet and the two sets of short arm transmission steel sheets, and carry the object piece between the two through first splint and second splint, the automatically regulated of clamping state size has been realized, reduce the wearing and tearing of anchor clamps rubber slab, and then avoid causing the damage of prefabricated section of jurisdiction, the anchor clamps precision is high, avoid the potential safety hazard that the landing of prefabricated section of jurisdiction caused, reduce the change number of times of accessory, practice thrift the maintenance cost.

Drawings

Fig. 1 is a schematic structural view of a self-adjusting clamp for prefabricated duct pieces according to the present invention;

Fig. 2 is a front view of the self-adjusting fixture for prefabricated duct pieces according to the present invention;

Fig. 3 is a right side view of the self-adjusting fixture for prefabricated duct pieces according to the present invention;

FIG. 4 is a schematic view of the combination of the first bushing, the lever and the hook;

FIG. 5 is a front view of the spacing box;

FIG. 6 is a side view of the spacing box;

FIG. 7 is a schematic view of a first cleat;

FIG. 8 is a left side view of the first splint;

FIG. 9 is a schematic view of the second splint;

FIG. 10 is a detailed view of the construction of the bolt of FIGS. 7 and 9;

fig. 11 is a schematic view of the end structure of each rotating shaft.

illustration of the drawings: 1-short arm transmission steel plate, 2-first long arm transmission steel plate, 3-second long arm transmission steel plate, 4-first clamping plate, 5-second clamping plate, 6-limiting box, 7-third rotating shaft, 8-fourth rotating shaft, 9-fifth rotating shaft, 10-protective steel plate, 11-second rotating shaft, 12-first shaft sleeve, 13-lifting lug, 14-operating rod, 15-lifting hook, 16-first rotating shaft, 17-second shaft sleeve, 18-third shaft sleeve, 19-fourth shaft sleeve, 20-first long arm steel plate body, 21-first bending part, 22-second long arm steel plate body, 23-second bending part, 24-gasket, 25-hair clamping pin, 41-first rubber plate seat, 42-first rubber plate, 43-bolt, 44-rotary hole rib plate, 51-first rubber plate seat, 52-first rubber plate, 53-bolt, 54-rib plate, 61-limiting box body, 62-third rubber plate, 431-bolt, 432-nut, 433-elastic gasket and 434-flat washer.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

combine attached figure 1 ~ 3 to show, the utility model relates to a self-modulation anchor clamps, including two sets of short arm transmission steel sheet 1, first long arm transmission steel sheet 2, second long arm transmission steel sheet 3, first splint 4 and second splint 5. Two sets of short arm transmission steel 1 boards are the splayed and arrange, and the top is articulated through first axis of rotation 7, and two sets of short arm transmission steel 1 can be along first axis of rotation 7 mutual rotation, and the outer lane cover that first axis of rotation 7 lies in the part between the preceding back lateral wall of short arm transmission steel 1 is equipped with lug 13 and first axle sleeve 12, is equipped with action bars 14 and lifting hook 15 on the first axle sleeve 12. Referring to fig. 3 and 4, the operating rod 14 and the hook 15 are welded on the first shaft sleeve 12, and form an included angle of 90 ° therebetween, and a hook is disposed at the bottom of the hook 15.

Referring to fig. 2, the first long arm driving steel plate 2 includes a first long arm steel plate body 20 and a first bending portion 21; the second long arm transmission steel plate 3 comprises a second long arm steel plate body 22 and a second bending part 23. The first long arm transmission steel plate 2 and the second long arm transmission steel plate 3 are arranged in a crossed mode, the top portions of the first long arm transmission steel plate 2 and the second long arm transmission steel plate 3 are respectively hinged with one group of short arm transmission steel plates 1 through a second rotating shaft 11, and the crossed position is hinged through a third rotating shaft 7. Referring to fig. 1, a second shaft sleeve 17 is sleeved on an outer ring of a portion, located between front and rear side walls of a short-arm transmission steel plate 1, of a second rotating shaft 11, a third shaft sleeve 18 is sleeved on an outer ring of a portion, located between front and rear side walls of a first long-arm transmission steel plate 2, of a third rotating shaft, the second shaft sleeve 17 is the same as the third shaft sleeve 18 in length, and the second shaft sleeve 17 is used for determining distances between the front and rear side walls of the short-arm transmission steel plate 1, the front and rear side walls of the first long-arm transmission steel plate 2, and. The lifting hook 15 is matched with the third rotating shaft 7, when the self-adjusting fixture for the prefabricated pipe piece is not used, the lifting hook 15 hooks the third shaft sleeve 18 outside the third rotating shaft 7, and the short-arm transmission steel plate 1, the first long-arm transmission steel plate 2 and the second long-arm transmission steel plate 3 cannot rotate and change angles; in a use state, an operator pulls the operating rod 14 to separate the hook 15 from the third rotating shaft 7, so that the short arm transmission steel plate 1, the first long arm transmission steel plate 2 and the second long arm transmission steel plate 3 can rotate and adjust.

Referring to fig. 1 and 2, the parts below the crossing positions of the first long-arm transmission steel plate 2 and the second long-arm transmission steel plate 3 are hinged with a limiting box 6 through a fourth rotating shaft 8. Referring to fig. 5 and 6, the limiting box 6 includes a limiting box body 61, and a third rubber plate 62 is disposed at the bottom of the limiting box body 61.

referring to fig. 7 and 8, the first clamping plate 4 includes a first rubber plate seat 41 and a first rubber plate 42, the first rubber plate seat 41 and the first rubber plate 42 are fixed by a bolt 43, three rotary hole rib plates 44 arranged at intervals along the horizontal direction are arranged on the outer side surface of the first rubber plate seat 41, and circular holes with the same height are arranged on the rotary hole rib plates 44. The whole first splint 4 that articulates at the first part of buckling 21 of first long arm driving steel plate 2 through fifth axis of rotation 9, and the outer lane cover of fifth axis of rotation 9 is equipped with fourth axle sleeve 19, and the external diameter of fourth axle sleeve 19 and the aperture cooperation of round hole, rotatory hole gusset 44 cover realize articulatedly on fourth axle sleeve 19. Referring to fig. 1, a protective steel plate 10 is welded to the outer side of the first bending portion 21 to prevent impurities from falling on the fifth rotating shaft 9 and affecting the rotation of the first clamping plate 4.

referring to fig. 9, the second clamping plate 5 includes a second rubber plate seat 51 and a second rubber plate 52, the second rubber plate seat 51 and the second rubber plate 52 are fixed by bolts 53, and two rib plates 54 are arranged on the back of the second rubber plate seat 51 and spaced up and down and arranged transversely; and a clamping groove corresponding to the rib plate 54 is formed in the second bending part 23 at the bottom end of the second long-arm transmission steel plate 5, and the rib plate 54 is inserted into the clamping groove and is welded and fixed.

The structure of the bolt 43 for fixing the first rubber sheet seat 41 and the first rubber sheet 42 and the bolt 53 for fixing the second rubber sheet seat 51 and the second rubber sheet 52 are shown in fig. 10, and include a screw 431, a nut 432, an elastic washer 433 and a flat washer 434, one end of the inner side of the screw 431 is embedded into the first rubber sheet seat 41 and the second rubber sheet seat 51, the other end penetrates through the first rubber sheet seat 42 and the second rubber sheet seat 52, the elastic washer 433 and the flat washer 434 are sequentially arranged on the extending part for protecting the first rubber sheet seat 42 and the second rubber sheet seat 52, and the nut 432 is screwed to complete the fixing.

Referring to fig. 11, a spacer 24 and a hairpin pin 25 are disposed at both ends of the first, second, third, fourth, and fifth rotation shafts. During assembly, after the rotating shafts are installed in place, the gaskets 24 are firstly arranged to protect the parts hinged together, and then the hairpin pins 25 are inserted to prevent the rotating shafts from moving back and forth in the use process of the self-adjusting clamp for the prefabricated duct piece.

Use the drawing of patterns to prefabricated piping lane section of jurisdiction of above-mentioned self-modulation anchor clamps of adoption as an example, right the utility model relates to a self-modulation anchor clamps's application method explains.

Step zero: before use, the lifting hook 15 hooks the third shaft sleeve 18 outside the third rotating shaft 7, and the short-arm transmission steel plate 1, the first long-arm transmission steel plate 2 and the second long-arm transmission steel plate 3 cannot rotate or change angles, so that free rotation of the transmission steel plates is prevented, and the overall stability is kept;

the method comprises the following steps: firstly, placing a self-adjusting clamp hoisted by a crane above a prefabricated duct piece to be subjected to mold stripping, pressing a limiting box 6 on the upper surface of the prefabricated duct piece, and positioning the prefabricated duct piece by the limiting box 6;

Step two: the operator lifts the operating lever 14 to separate the hook 15 from the third sleeve 18;

step three: the travelling crane lifts, the limiting box pulls the lower half parts of the first long-arm transmission steel plate 2 and the second long-arm transmission steel plate 3 downwards under the action of gravity, so that the short-arm transmission steel plate 1, the first long-arm transmission steel plate 2 and the second long-arm transmission steel plate 3 rotate, the first clamping plate 4 and the second clamping plate 5 move inwards and clamp the prefabricated pipe piece, the drawing is completed, and the prefabricated pipe piece is conveyed to a specified storage place;

Step four: the piping lane section of jurisdiction is carried appointed position, the line hangs the decline, the piping lane section of jurisdiction is after the ground, the line hangs and continues to descend, after the piping lane section of jurisdiction contacts with spacing box, spacing box promotes the latter half of first long arm transmission steel sheet 2 and second long arm transmission steel sheet 3, make short arm transmission steel sheet 1, first long arm transmission steel sheet 2 and second long arm transmission steel sheet 3 take place with the rotation of reversing in the step three, first splint 4 and the outside removal of second splint 5, self-modulation anchor clamps are automatic to be opened and loosen the piping lane section of jurisdiction, at this moment, operating personnel breaks action bars 14 with the fingers and thumb and makes lifting hook 15 catch on third axle sleeve 18 again, restriction short arm transmission steel sheet 1, first long arm transmission steel sheet 2 and second long arm transmission steel sheet 3 take place the mutual rotation.

the present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (8)

1. A self-adjusting clamp is characterized in that: the device comprises two groups of short arm transmission steel plates, a first long arm transmission steel plate, a second long arm transmission steel plate, a first clamping plate and a second clamping plate; the tops of the two groups of short arm transmission steel plates are hinged through a first rotating shaft, a lifting lug and a first shaft sleeve are sleeved on an outer ring of the first rotating shaft, and an operating rod and a lifting hook are arranged on the first shaft sleeve; the first long arm transmission steel plate and the second long arm transmission steel plate are arranged in a crossed mode, the top portions of the first long arm transmission steel plate and the second long arm transmission steel plate are respectively hinged with the bottom ends of one group of short arm transmission steel plates through a second rotating shaft, the crossed position is hinged through a third rotating shaft, the parts below the crossed position of the first long arm transmission steel plate and the second long arm transmission steel plate are hinged through a fourth rotating shaft and are connected with a limiting box, and a lifting hook is matched with the third rotating shaft; the first clamping plate is hinged to the bottom of the first long arm transmission steel plate through a fifth rotating shaft, and the second clamping plate is fixed to the bottom of the second long arm transmission steel plate.

2. The self-tuning jig of claim 1 wherein: the first clamping plate comprises a first rubber plate seat and a first rubber plate, the first rubber plate seat and the first rubber plate are fixed through bolts, at least two rotary hole rib plates which are arranged at intervals along the horizontal direction are arranged on the outer side surface of the first rubber plate seat, and round holes with the same height are formed in the rotary hole rib plates; the outer ring of the fifth rotating shaft is sleeved with a fourth shaft sleeve, the outer diameter of the fourth shaft sleeve is matched with the aperture of the round hole, and the rotary hole rib plate is sleeved on the fourth shaft sleeve.

3. The self-tuning jig of claim 1 wherein: the second clamping plate comprises a second rubber plate seat and a second rubber plate, the second rubber plate seat and the second rubber plate are fixed through bolts, and the back of the second rubber plate seat is provided with at least two rib plates which are vertically spaced and transversely arranged; and the bottom end of the second long-arm transmission steel plate is provided with a clamping groove corresponding to the rib plate, and the rib plate is inserted into the clamping groove and is welded and fixed.

4. The self-tuning jig of claim 1 wherein: the outer ring of the second rotating shaft is sleeved with a second shaft sleeve, the outer ring of the third rotating shaft is sleeved with a third shaft sleeve, and the second shaft sleeve and the third shaft sleeve are the same in length.

5. The self-tuning jig of claim 1 wherein: the first long arm transmission steel plate comprises a first long arm steel plate body and a first bending part, the first clamping plate is hinged to the first bending part, and a protection steel plate is welded on the outer side of the first bending part; the second long arm transmission steel plate comprises a second long arm steel plate body and a second bending part, and the second clamping plate is welded at the second bending part.

6. The self-tuning jig of claim 1 wherein: the limiting box comprises a limiting box body, and a third rubber plate is arranged at the bottom of the limiting box body.

7. The self-tuning jig of claim 1 wherein: the operating rod and the lifting hook are arranged at an included angle of 90 degrees.

8. the self-tuning jig of claim 1 wherein: and gaskets and hair pin are arranged at the two ends of the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft and the fifth rotating shaft.