Anti-shearing bolt assembly

Abstract

The utility model relates to the technical field of bolts, and discloses an anti-shearing bolt assembly which comprises a fixing plate, a mounting hole is formed in the top of the fixing plate, a supporting plate is fixedly mounted in the mounting hole, a second guide hole is formed in the middle of the supporting plate, a supporting rod is arranged at the top of the supporting plate, and a first spring is arranged at the top of the supporting rod. A supporting block is fixedly connected to the top of the first spring, a telescopic groove is formed in the top of the supporting block, a threaded hole is formed in the top of the supporting block, a bolt body is in threaded connection with the interior of the threaded hole, a movable chamber is formed in the middle of the fixing plate, a limiting rod is arranged at the top of the movable chamber, and a movable plate is connected to the outer side of the limiting rod. According to the anti-shearing bolt assembly, the supporting block and the clamping plate are arranged to limit the bolt, the situation that the bolt body is inclined due to shearing force in the screwing process is avoided, the stability of the bolt body is improved, and meanwhile the situation that the bolt body rotates is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, concretely is a kind of shear-resistant bolt assembly. BACKGROUND

[0002] Bolt is mechanical part, and cylindrical fastener with nut is used, by head and screw two parts are composed of a class of fastener, need to cooperate with nut, for fastening connection two parts with through hole, this connection form is called bolt connection, such as the nut is spun down from bolt, can also make these two parts separate, so bolt connection is belong to detachable connection.

[0003] The existing bolt has the condition of insufficient hardness, and lacks the corresponding shear resistance function, which leads to the bolt being easily damaged after being subjected to shear force, thereby reducing the stability of the bolt and affecting the fixing effect of the bolt. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a shear-resistant bolt assembly to solve the problems in the above background art.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a shear-resistant bolt assembly, including fixed plate, the fixed plate top is equipped with mounting hole, the mounting hole inside is fixedly installed with support plate, the support plate middle is equipped with guide hole two, the support plate top is provided with support rod, the support rod top is provided with spring one, the spring one top is fixedly connected with support block, the support block top is equipped with telescopic slot, the support block top is equipped with threaded hole, the threaded hole inside is connected with bolt body in screw thread, the fixed plate middle is equipped with movable chamber, the movable chamber top is provided with limiting rod, the limiting rod outside is connected with movable plate, the movable plate bottom is provided with displacement rod, the movable chamber bottom middle is equipped with guide hole one, the movable chamber bottom is equipped with through hole one, the fixed plate bottom is provided with mounting box, the mounting box is equipped with through hole two close to fixed plate center one end, the through hole two inside is installed with clamping rod, the clamping rod right side is provided with clamping plate, the clamping rod bottom is provided with mounting plate, the mounting plate right side is fixedly installed with spring two.

[0008] Preferably, the centers of the guide hole one, the guide hole two and the threaded hole coincide.

[0009] Preferably, the support rod and the spring one are installed inside the telescopic slot.

[0010] Preferably, the movable plate is provided with a threaded connecting hole in the middle, and the bolt body is installed in the connecting hole.

[0011] Preferably, the bottom of the displacement rod and the left end of the clamping rod are both provided with the same angle inclined surface structure.

[0012] Preferably, one end of the spring II away from the mounting plate is fixedly connected to the inner wall of the mounting box.

[0013] Preferably, the clamping plate is provided with a groove at the end away from the clamping rod, and the end of the groove contacting the bolt body is provided with a rubber protective pad.

[0014] Compared with the prior art, the anti-shearing bolt assembly has the following beneficial effects:

[0015] The anti-shearing bolt assembly sets a support block and a clamping plate to limit the bolt, avoids the bolt body from being skewed by shearing force during the tightening process, improves the stability of the bolt body, and prevents the bolt body from rotating. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the sectional structure of the fixed plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the sectional structure of the support plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping rod of the utility model.

[0021] In the drawing: 1, fixed plate; 2, support plate; 3, bolt body; 4, movable plate; 5, clamping rod; 101, mounting hole; 102, movable chamber; 103, limiting rod; 104, guide hole I; 105, through hole I; 106, mounting box; 107, through hole II; 201, guide hole II; 202, support rod; 203, spring I; 204, support block; 205, expansion slot; 206, threaded hole; 401, displacement rod; 501, clamping plate; 502, mounting plate; 503, spring II. DETAILED DESCRIPTION

[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] As shown in Figures 1-5 The utility model provides a kind of technical scheme: a shear-resistant bolt assembly, including fixed plate 1, fixed plate 1 top is equipped with mounting hole 101, mounting hole 101 inside is fixedly installed with support plate 2, support plate 2 middle is equipped with guide hole two 201, support plate 2 top is provided with support rod 202, support rod 202 top is provided with spring one 203, spring one 203 top is fixedly connected with support block 204, support block 204 top is equipped with telescopic groove 205, support block 204 top is equipped with threaded hole 206, threaded hole 206 inside is connected with bolt body 3 by screw thread, fixed plate 1 middle is equipped with movable chamber 102, movable chamber 102 top is provided with limit rod 103, limit rod 103 outside is connected with movable plate 4, movable plate 4 bottom is provided with displacement rod 401, movable chamber 102 bottom middle is equipped with guide hole one 104, movable chamber 102 bottom is equipped with through hole one 105, fixed plate 1 bottom is provided with mounting box 106, mounting box 106 is equipped with through hole two 107 close to the center of fixed plate 1 one end, through hole two 107 inside is installed with clamping rod 5, clamping rod 5 right side is provided with clamping plate 501, clamping rod 5 bottom is provided with mounting plate 502, mounting plate 502 right side is fixedly installed with spring two 503.

[0024] Further, the centers of guide hole one 104, guide hole two 201 and threaded hole 206 coincide.

[0025] Through the above technical scheme, it is ensured that the bolt body 3 will not deviate when installing the bolt body 3.

[0026] Further, support rod 202 and spring one 203 are installed inside telescopic groove 205.

[0027] Through the above technical scheme, it is ensured that support block 204 will descend with the descent of bolt body 3, and limit bolt body 3 to avoid shear force on bolt body 3.

[0028] Further, movable plate 4 middle is equipped with threaded connecting hole, and bolt body 3 is installed inside connecting hole.

[0029] Through the above technical scheme, it is ensured that movable plate 4 will move downward with the rotation of bolt body 3.

[0030] Further, the bottom of the displacement rod 401 and the left end of the clamping rod 5 are both inclined surface structures with the same angle.

[0031] Through the above technical scheme, it is ensured that the displacement rod 401 drives the middle of the clamping rod 5 and the fixing plate 1 to move downward when the displacement rod 401 moves downward, and the bolt body 3 is limited.

[0032] Further, the end of the spring two 503 away from the mounting plate 502 is fixedly connected to the inner wall of the mounting box 106.

[0033] Through the above technical scheme, it is ensured that the clamping plate 501 will return to the original position after the bolt body 3 is disassembled, which is convenient for next use.

[0034] Further, the end of the clamping plate 501 away from the clamping rod 5 is provided with a groove, and the end of the groove contacting the bolt body 3 is provided with a rubber protective pad.

[0035] Through the above technical scheme, damage to the bolt body 3 is prevented when the bolt body 3 is clamped.

[0036] Working principle: first, when the bolt body 3 is screwed into the threaded hole 206, the support block 204 will descend with the bolt body 3, then the support rod 202 will enter the telescopic slot 205, and the support block 204 will limit the bolt body 3, avoiding the bolt body 3 from being skewed due to shear force during the tightening process, thereby improving the stability of the bolt body 3. During the continuous rotation and descent of the bolt body 3, the movable plate 4 drives the displacement rod 401 to descend, and the clamping plates 501 on the clamping rod 5 are close to each other, until the clamping plates 501 clamp the bolt body 3, thereby extruding and limiting the outside of the bolt body 3, further improving the stability of the bolt body 3, and preventing the bolt body 3 from rotating.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A shear-resistant bolt assembly comprising a fixing plate (1), characterised in that: The fixing plate (1) top is provided with mounting hole (101), the mounting hole (101) is fixedly installed with support plate (2) inside, the support plate (2) is provided with guide hole two (201) in the middle, the support plate (2) top is provided with support rod (202), the support rod (202) top is provided with spring one (203), the spring one (203) top is fixedly connected with support block (204), the support block (204) top is provided with telescopic slot (205), the support block (204) top is provided with threaded hole (206), the threaded hole (206) is internally threadedly connected with bolt body (3), the fixing plate (1) middle is provided with movable chamber (102), the movable chamber (102) top is provided with limiting rod (103), the limiting rod (103) outside is connected with movable plate (4), the movable plate (4) bottom is provided with displacement rod (401), the movable chamber (102) bottom middle is provided with guide hole one (104), the movable chamber (102) bottom is provided with through hole one (105), the fixing plate (1) bottom is provided with mounting box (106), the mounting box (106) is close to the centre of the one end of fixing plate (1) and is provided with through hole two (107), the through hole two (107) is internally provided with clamping rod (5), the clamping rod (5) right side is provided with clamping plate (501), the clamping rod (5) bottom is provided with mounting plate (502), the mounting plate (502) right side is fixedly installed with spring two (503).

2. A shear resistant bolt assembly according to claim 1 wherein: The center of the guide hole one (104), guide hole two (201) and threaded hole (206) coincides.

3. A shear resistant bolt assembly according to claim 1, wherein: The support rod (202) and spring one (203) are installed in the telescopic slot (205) inside.

4. A shear resistant bolt assembly according to claim 1, wherein: The movable plate (4) middle is provided with threaded connecting hole, and the bolt body (3) is installed in the connecting hole.

5. A shear resistant bolt assembly according to claim 1, wherein: The bottom of the displacement rod (401) and the left end of the clamping rod (5) are both inclined surface structures with the same angle.

6. A shear-resistant bolt assembly according to claim 1, wherein: The spring two (503) is fixedly connected to the inner wall of the mounting box (106) away from the mounting plate (502).

7. A shear resistant bolt assembly according to claim 1 wherein: The clamping plate (501) is provided with a groove away from the clamping rod (5), and the groove is provided with a rubber protective pad contacting one end of the bolt body (3).

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