CN222526679U

CN222526679U - Anti-skid shockproof bolt assembly

Info

Publication number: CN222526679U
Application number: CN202421435481.4U
Authority: CN
Inventors: 翁连弟; 竺利德; 贺兆南
Original assignee: Zhejiang Youwei Fastener Co ltd
Current assignee: Zhejiang Youwei Fastener Co ltd
Priority date: 2024-06-21
Filing date: 2024-06-21
Publication date: 2025-02-25
Anticipated expiration: 2034-06-21

Abstract

The utility model relates to the technical field of fasteners, in particular to an anti-skid and shockproof bolt assembly, which comprises a nut and a first screw, wherein a second screw is arranged at one end of the first screw, which is far away from the nut, the screw direction of the first screw is opposite to that of the second screw, a limiting block is sleeved outside the second screw, a locking device is arranged between the nut and the limiting block, a plurality of first convex blocks are arranged on the surfaces of two sides of the locking device, a plurality of first positioning grooves are arranged on the surface of one side, close to the locking device, of the nut, and a plurality of second positioning grooves are arranged on the surface of one side, close to the locking device, of the limiting block. According to the locking device provided by the utility model, the limiting block is screwed, so that the locking block close to the limiting block moves towards the direction close to the nut, the spring is compressed, the locking block close to the nut is further pushed to tightly prop against the nut, and when vibration occurs, the locking block is pushed to tightly prop against the nut through the elasticity of the compression spring, so that the nut and the first screw are prevented from sliding relatively.

Description

Anti-skid shockproof bolt assembly

Technical Field

The utility model relates to the technical field of fasteners, in particular to an anti-skid and shockproof bolt assembly.

Background

The bolt is a mechanical part and is matched with a cylindrical threaded fastener of a nut. A fastener consisting of a head part and a screw rod (a cylinder with external threads) needs to be matched with a nut for fastening two parts with through holes. This form of connection is called bolting. If the nut is screwed off the bolt, the two parts can be separated, so the bolt connection belongs to the detachable connection.

For example, the authorized bulletin number CN215805637U is named as an anti-skid and shockproof bolt assembly, although the limiting assembly is sleeved on the bolt and the limiting assembly does not generate circumferential rotation relative to the bolt and the screw, when the anti-skid and shockproof bolt assembly is used, the limiting column is slidably connected in the limiting groove, so that the limiting assembly can be prevented from rotating relative to the circumferential direction of the screw, the positioning block is matched with the positioning hole, the limiting assembly can be prevented from generating axial sliding relative to the bolt and the screw on the bolt and the screw, and the limiting assembly is abutted with one side of the nut far away from the bolt head, so that the bolt can be effectively prevented from being unscrewed from the nut and falling off due to vibration. However, because the limiting component is made of elastic materials, when vibration occurs, the positioning block easily slides out from the axial direction of the positioning hole, the positioning block and the positioning hole are matched to play a role in stable axial limiting, the nut has a risk of sliding with the screw, and because the limiting component is made of elastic materials, when vibration occurs, the limiting column easily falls off from the circumferential direction of the limiting groove, the limiting column and the limiting groove play a role in stable circumferential limiting, and the nut has a risk of circumferential rotation with the screw.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides an anti-skid and shockproof bolt assembly.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a design antiskid shockproof bolt assembly, includes nut and first screw rod, first screw rod surface is equipped with first screw thread, the one end that the nut was kept away from to first screw rod is equipped with the second screw rod, the diameter of second screw rod is less than first screw rod, second screw rod surface is equipped with the second screw thread, first screw thread is opposite with second screw thread spiral direction, first screw rod outside has cup jointed the nut, nut inner wall and first screw thread threaded connection, the stopper has been cup jointed to the second screw rod outside, stopper inner wall and second screw thread threaded connection, be equipped with locking device between nut and the stopper, one side surface that the stopper is close to locking device is equipped with first recess, locking device both sides surface all is equipped with a plurality of first lugs, one side surface that the nut is close to locking device is equipped with a plurality of first constant head tanks, first constant head tank and first lug match, one side surface that the stopper is close to locking device is equipped with a plurality of second constant head tanks, second constant head tank and first lug match.

Preferably, the locking device comprises two locking blocks, the surfaces of the two locking blocks are respectively provided with a first through hole, one end of the first screw rod penetrates through the two first through holes, a spring is arranged between the two locking blocks, the spring is sleeved outside the first screw rod, and a synchronous rotating assembly is arranged between the two locking blocks.

Preferably, the synchronous rotating assembly comprises a plurality of connecting blocks, one end of each connecting block is detachably connected with one side surface of each locking block, a plurality of connecting holes are formed in the surface of each locking block, which is close to the limiting block, the connecting holes are in one-to-one correspondence with the connecting blocks, and one end of each connecting block penetrates through each connecting hole.

Preferably, a second groove is formed in the surface of one side, close to the nut, of the nut, a gasket is arranged in the second groove, a second through hole is formed in the surface of the gasket, and one end of the first screw rod penetrates through the second through hole.

Preferably, a plurality of second protruding blocks are arranged on the inner wall of the second groove, a plurality of third positioning grooves are formed in the surface, close to the second protruding blocks, of the gasket, the second protruding blocks correspond to the third positioning grooves one by one, and the second protruding blocks are matched with the third positioning grooves.

Preferably, the stopper surface is equipped with a plurality of third through-holes, and is a plurality of the inside dead bolt that all is equipped with of third through-hole, second screw rod surface annular is equipped with a plurality of fixed slots, dead bolt and fixed slot threaded connection.

The anti-skid and shockproof bolt assembly has the advantages that the locking device is arranged, the locking blocks close to the limiting block are enabled to move towards the direction close to the nut through screwing the limiting block, the spring is compressed, the locking blocks close to the nut are pushed to tightly press the nut, when vibration occurs, the locking blocks are pushed to tightly press the nut through the elasticity of the compression spring, the effect of stable axial limiting is achieved, the nut and the first screw rod are guaranteed not to slide relatively, when vibration occurs, the nut rotates anticlockwise due to the clamping effect of the first protruding block and the first positioning groove, the locking device is driven to rotate anticlockwise, the limiting block rotates anticlockwise due to the clamping effect of the first protruding block and the second positioning groove, and the limiting block moves towards the locking device due to the fact that the anticlockwise rotation of the first thread is opposite to the second thread, the locking device further pushes against the nut, the nut is prevented from rotating, the effect of stable circumferential limiting is achieved, and the nut and the first screw rod is guaranteed not to rotate circumferentially.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is an enlarged view of the A position of the present utility model;

FIG. 3 is an enlarged view of the B position of the present utility model;

FIG. 4 is an enlarged view of the C position of the present utility model;

fig. 5 is an enlarged view of the D position of the present utility model.

In the figure, a nut 1, a first screw rod 2, a first thread 3, a second screw rod 4, a second thread 5, a nut 6, a limiting block 7, a first groove 8, a first protruding block 9, a first positioning groove 10, a second positioning groove 11, a locking block 12, a first through hole 13, a spring 14, a second groove 15, a gasket 16, a second through hole 17, a second protruding block 18, a third positioning groove 19, a third through hole 20, a fixing bolt 21, a fixing groove 22, a connecting block 23 and a connecting hole 24 are shown.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, the anti-skid and shockproof bolt assembly comprises a nut 1 and a first screw rod 2, wherein a first thread 3 is arranged on the surface of the first screw rod 2, a second screw rod 4 is arranged at one end, away from the nut 1, of the first screw rod 2, and the diameter of the second screw rod 4 is smaller than that of the first screw rod 2, so that a nut 6 can be conveniently installed. The second screw 4 is provided with the second screw thread 5 on the surface, and the first screw thread 3 is opposite to the second screw thread 5 in spiral direction, so that when the nut 6 rotates anticlockwise, the limit block 7 is driven to rotate anticlockwise to be in a fastened state, and the effect of circumferentially limiting the nut 6 is achieved. The nut 6 is sleeved outside the first screw rod 2, the inner wall of the nut 6 is in threaded connection with the first thread 3, the limiting block 7 is sleeved outside the second screw rod 4, the inner wall of the limiting block 7 is in threaded connection with the second thread 5, a locking device is arranged between the nut 6 and the limiting block 7, a first groove 8 is formed in the surface, close to the locking device, of the limiting block 7, a plurality of first protruding blocks 9 are arranged on the surfaces of two sides of the locking device, a plurality of first positioning grooves 10 are formed in the surface, close to the locking device, of the nut 6, and the first positioning grooves 10 are matched with the first protruding blocks 9, so that the first positioning grooves 10 are clamped with the first protruding blocks 9. A plurality of second positioning grooves 11 are formed in the surface, close to the locking device, of one side of the limiting block 7, and the second positioning grooves 11 are matched with the first protruding blocks 9, so that the second positioning grooves 11 are clamped with the first protruding blocks 9.

The locking device comprises two locking blocks 12, first through holes 13 are formed in the surfaces of the two locking blocks 12, one end of a first screw rod 2 penetrates through the two first through holes 13, a spring 14 is arranged between the two locking blocks 12, the spring 14 is sleeved outside the first screw rod 2, a synchronous rotating assembly is arranged between the two locking blocks 12, and the two locking blocks 12 can be integrally formed and synchronously rotated by the aid of the synchronous rotating assembly.

The synchronous rotating assembly comprises a plurality of connecting blocks 23, one end of each connecting block 23 is detachably connected with one side surface of each locking block 12, a plurality of connecting holes 24 are formed in the surface of each locking block 12, which is close to the limiting block 7, the connecting holes 24 correspond to the connecting blocks 23 one by one, and one end of each connecting block 23 penetrates through each connecting hole 24. During installation, the nut 6 is installed firstly, then the first locking block 12 is installed, then the spring 14 is installed, then the second locking block 12 is installed, then the limiting block 7 is installed, and finally the connecting block 23 passes through the connecting hole 24 and is detachably connected with the locking block 12 when the limiting block 7 is fastened to a specified position.

The nut 6 is close to the one side surface of nut 1 and is equipped with second recess 15, and second recess 15 inside is equipped with gasket 16, and gasket 16 surface is equipped with second through-hole 17, and first screw rod 2 one end runs through second through-hole 17. The washer 16 has elasticity, and the nut 6 is firmly connected with the fixed object through the contact of the washer 16 and the fixed object.

The inner wall of the second groove 15 is provided with a plurality of second convex blocks 18, one side surface of the gasket 16, which is close to the second convex blocks 18, is provided with a plurality of third positioning grooves 19, the second convex blocks 18 are in one-to-one correspondence with the third positioning grooves 19, and the second convex blocks 18 are matched with the third positioning grooves 19. The gasket 16 is not displaced by the limitation of the second bump 18 and the third positioning groove 19.

The stopper 7 surface is equipped with a plurality of third through holes 20, and a plurality of inside dead bolts 21 that all are equipped with of a plurality of third through holes 20, and second screw rod 4 surface annular is equipped with a plurality of fixed slots 22, and dead bolt 21 and fixed slot 22 threaded connection. The fixing peg 21 serves to further prevent the nut 6 from moving in the axial direction and rotating in the circumferential direction.

The locking device comprises a locking device, wherein the locking device is arranged, a limiting block 7 is screwed, so that a locking block 12 close to the limiting block 7 moves towards the direction close to a nut 6, a spring 14 is compressed, the locking block 12 close to the limiting block 7 is pushed against the nut 6, when vibration occurs, the locking block 12 is pushed against the nut 6 through the elasticity of the spring 14, the function of stable axial limiting is achieved, the nut 6 and a first screw rod 2 are ensured not to slide relatively, when vibration occurs, the nut 6 rotates in the anticlockwise direction due to the clamping effect of a first protruding block 9 and a first positioning groove 10, the locking block 12 close to the nut 6 is driven to rotate anticlockwise, the locking block 12 close to the limiting block 7 rotates anticlockwise due to the clamping effect of a connecting block 23 and a second positioning groove 11, the limiting block 7 rotates anticlockwise due to the fact that the first thread 3 and the second thread 5 rotate in the opposite spiral direction, the limiting block 7 moves towards the locking device, the locking block 12 close to the nut 6 further pushes against the nut 6, the nut 6 is prevented from rotating, and the stable circumferential limiting effect of the nut 6 is ensured not to rotate circumferentially with the first screw rod 2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The anti-skid and shockproof bolt assembly comprises a nut (1) and a first screw (2), and is characterized in that the surface of the first screw (2) is provided with a first thread (3), one end of the first screw (2) away from the nut (1) is provided with a second screw (4), the diameter of the second screw (4) is smaller than that of the first screw (2), the surface of the second screw (4) is provided with a second thread (5), the screw direction of the first thread (3) is opposite to that of the second thread (5), the outer part of the first screw (2) is sleeved with a nut (6), the inner wall of the nut (6) is in threaded connection with the first thread (3), the outer part of the second screw (4) is sleeved with a limiting block (7), the inner wall of the limiting block (7) is in threaded connection with the second thread (5), a locking device is arranged between the nut (6) and the limiting block (7), one side surface of the limiting block (7) close to the locking device is provided with a first groove (8), the two side surfaces of the locking device are provided with a plurality of first bumps (9), the two side surfaces of the locking device are provided with a plurality of first positioning grooves (10) close to the first positioning grooves (10), the second positioning groove (11) is matched with the first lug (9).

2. The anti-skid and anti-vibration bolt assembly according to claim 1, wherein the locking device comprises two locking blocks (12), the surfaces of the two locking blocks (12) are respectively provided with a first through hole (13), one end of the first screw rod (2) penetrates through the two first through holes (13), a spring (14) is arranged between the two locking blocks (12), the spring (14) is sleeved outside the first screw rod (2), and a synchronous rotating assembly is arranged between the two locking blocks (12).

3. The anti-skid and anti-vibration bolt assembly according to claim 2, wherein the synchronous rotation assembly comprises a plurality of connection blocks (23), one end of each connection block (23) is detachably connected with one side surface of each locking block (12), a plurality of connection holes (24) are formed in the surface of each locking block (12) close to the limiting block (7), the plurality of connection holes (24) are in one-to-one correspondence with the plurality of connection blocks (23), and one end of each connection block (23) penetrates through each connection hole (24).

4. The anti-skid and anti-vibration bolt assembly according to claim 1, wherein a second groove (15) is formed in the surface, close to the nut (1), of the nut (6), a gasket (16) is arranged in the second groove (15), a second through hole (17) is formed in the surface of the gasket (16), and one end of the first screw (2) penetrates through the second through hole (17).

5. The anti-skid and anti-vibration bolt assembly according to claim 4, wherein a plurality of second protruding blocks (18) are arranged on the inner wall of the second groove (15), a plurality of third positioning grooves (19) are formed on the surface, close to the second protruding blocks (18), of the gasket (16), the second protruding blocks (18) are in one-to-one correspondence with the third positioning grooves (19), and the second protruding blocks (18) are matched with the third positioning grooves (19).

6. The anti-skid and anti-vibration bolt assembly according to claim 1, wherein a plurality of third through holes (20) are formed in the surface of the limiting block (7), fixing bolts (21) are arranged in the third through holes (20), a plurality of fixing grooves (22) are formed in the surface of the second screw rod (4) in an annular mode, and the fixing bolts (21) are in threaded connection with the fixing grooves (22).