CN216382191U

CN216382191U - Novel check bolt assembly

Info

Publication number: CN216382191U
Application number: CN202122741711.2U
Authority: CN
Inventors: 徐祝彬
Original assignee: Individual
Current assignee: Guizhou Xianlong Fastener Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-26
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a novel anti-loosening bolt assembly which comprises a screw, a gasket sleeved on a screw rod of the screw and a nut in threaded connection with the screw rod of the screw, wherein an elastic sleeve connected with the gasket into a whole is arranged on the end surface of the gasket, an annular chute clamped with the elastic sleeve on the gasket is formed in the end surface of the nut, and the elastic sleeve is pressed in the annular chute, so that the nut and the gasket form a connected piece which can rotate relatively but cannot be separated. The utility model enables the gasket and the nut or the screw to form a connecting piece which can rotate relatively but cannot be separated, and simultaneously, after the bolt assembly is screwed down, the head of the nut or the screw can apply a very large pressure to the gasket to enable the gasket not to move or rotate, and the nut or the screw is limited by the screw thread, so that the nut or the screw can be kept in a fixed state through the mutual traction action of the connecting piece even under the condition of external forces such as vibration and the like, thereby achieving the purpose of anti-loose locking.

Description

Novel check bolt assembly

Technical Field

The utility model relates to a novel anti-loosening bolt assembly, and belongs to the technical field of fasteners.

Background

Bolts are a common fastener used in a wide variety of mechanical and electrical devices. For common application occasions, no strict requirements are made on the anti-loosening property of the bolt. However, in the fields of automobiles, aviation, aerospace, nuclear power plants and the like, many devices or parts work in a vibration environment for a long time, and the bolts and the nuts are easy to loosen, so that the normal work of the devices is affected, and even safety accidents can be caused.

Various anti-loosening bolts appear in the existing fastener industry, and the anti-loosening bolt is complex in structure, high in production cost, inconvenient to install, poor in universality and unsatisfactory in anti-loosening effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a novel anti-loose bolt assembly which can achieve the purpose of anti-loose and locking, does not cause any damage to each part of a bolt after being disassembled, and can still be used continuously by a screw, a gasket and a nut, so that the cost is saved; and when the bolt is installed, the bolt and the nut can be separately and independently wrenched, the bolt is convenient to install in the same way as a conventional bolt, and the universality is greatly improved.

The utility model is formed as follows: the utility model provides a novel check bolt subassembly, includes the screw, overlaps the gasket on the screw rod of screw and with the screw rod threaded connection's of screw nut, be provided with on the terminal surface of gasket and be connected the elastic sleeve as an organic whole with the gasket, set up on the terminal surface of nut with the annular chute of the elastic sleeve block on the gasket, the elastic sleeve pressure equipment makes nut and gasket form one and can rotate nevertheless unable detached disjunctor spare relatively in the annular chute.

Furthermore, an annular chute clamped with the elastic sleeve on the gasket is formed in the end face of the head of the screw.

Furthermore, the included angle between the annular chute and the vertical plane is 1-3 degrees.

Furthermore, expansion joints are uniformly arranged on the circumference of the elastic sleeve.

Further, the depth of the annular chute is greater than the height of the elastic sleeve.

Furthermore, four triangular convex ridges are uniformly distributed on the other end face of the gasket, and the height of each triangular convex ridge is 0.5-1.5 mm.

Due to the adoption of the technical scheme, the utility model has the advantages that: the utility model makes the gasket and the nut or the screw form a connecting piece which can rotate relatively but can not be separated through the elastic sleeve on the gasket and the annular inclined groove at the head part of the nut or the screw are clamped together, and simultaneously, after the bolt assembly is screwed down, the head part of the nut or the screw can apply a very large pressure to the gasket to make the gasket unable to move or rotate, and the nut or the screw is limited by the screw thread. The utility model is convenient to install and dismantle, does not cause any damage to the disassembled screw, gasket and nut, and can still be used continuously, thus saving the cost; meanwhile, the screw and the nut can be separately and independently screwed, so that the installation is convenient, the working efficiency can be improved, and the universality is greatly improved. Therefore, the anti-loosening locking device has the advantages of good anti-loosening locking effect, simple structure, convenience in use, low manufacturing cost and convenience for batch production.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural view of example 2 of the present invention;

FIG. 3 is a top view of a front schematic view of a gasket;

FIG. 4 is a top view of a back side schematic of the gasket;

FIG. 5 is a cross-sectional view A-A of FIG. 3;

fig. 6 is a top view of a schematic of a nut.

Description of reference numerals: 1-screw, 2-nut, 3-gasket, 4-elastic sleeve, 5-expansion joint, 6-triangular convex edge and 7-annular chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1, 3, 4, 5 and 6, the novel anti-loosening bolt assembly of the present invention comprises a bolt 1, a gasket 3 sleeved on a screw rod of the bolt 1, and a nut 2 in threaded connection with the screw rod of the bolt 1, wherein an elastic sleeve 4 connected with the gasket 3 into a whole is arranged on an end surface of the gasket 3, an annular inclined groove 7 engaged with the elastic sleeve 4 on the gasket 3 is arranged on an end surface of the nut 2, and the elastic sleeve 4 is pressed in the annular inclined groove 7, such that the nut 2 and the gasket 3 form a connection member which can rotate relatively but cannot be separated. The included angle between the annular chute 7 and the vertical plane is 1 degree. Expansion joints 5 are uniformly formed in the circumference of the elastic sleeve 4, so that the elasticity of the elastic sleeve 4 is improved, and the elastic sleeve 4 is conveniently pressed into the annular chute 7. The depth of the annular chute 7 is larger than the height of the elastic sleeve 4, so that the nut 2 and the gasket 3 can be completely attached after the bolt is screwed down. Four triangular ribs 6 are uniformly distributed on the other end face of the gasket 3, the height of each triangular rib 6 is 0.5mm, after the bolts are screwed down, pressure applied to the gasket 3 is concentrated on the four triangular ribs 6, four corresponding grooves are formed in the connected body, and the gasket 3 is further prevented from rotating or moving in the using process.

The working principle of the utility model is as follows: according to the utility model, the elastic sleeve 4 on the gasket 3 is clamped with the annular chute 7 on the nut 2, so that the gasket and the nut 2 form a connected piece which can rotate relatively but cannot be separated, meanwhile, after the bolt assembly is screwed, the nut 2 can apply a very large pressure to the gasket 3, so that the gasket 3 cannot move or rotate, and the nut 2 is limited by the threads on the screw 1, so that even under the condition of external forces such as vibration and the like, the nut 2 and the screw 1 can be kept in a fixed state through the mutual restraining action of the connected piece, and the purpose of anti-loosening and locking is achieved.

Example 2

As shown in fig. 2 to 6, the novel anti-loosening bolt assembly of the present invention includes a bolt 1, a washer 3 sleeved on a screw rod of the bolt 1, and a nut 2 in threaded connection with the screw rod of the bolt 1, wherein an elastic sleeve 4 connected with the washer 3 into a whole is disposed on an end surface of the washer 3, an annular inclined groove 7 engaged with the elastic sleeve 4 on the washer 3 is disposed on an end surface of a head of the bolt 1, and the elastic sleeve 4 is press-fitted in the annular inclined groove 7, such that the nut 2 and the washer 3 form a relatively rotatable but inseparable integrated member. The contained angle of annular chute 7 and vertical plane is 3 degrees, expansion joint 5 has been seted up on the circumference of elastic sleeve 4 uniformly, improves the elasticity of elastic sleeve 4, is convenient for impress elastic sleeve 4 in annular chute 7. The depth of the annular chute 7 is larger than the height of the elastic sleeve 4, so that the nut 2 and the gasket 3 can be completely attached after the bolt is screwed down. Four triangular ribs 6 are uniformly distributed on the other end face of the gasket 3, the height of each triangular rib 6 is 1.5mm, after the bolts are screwed down, pressure applied to the gasket 3 is concentrated on the four triangular ribs 6, four corresponding grooves are formed in the connected body, and the gasket 3 is further prevented from rotating or moving in the using process.

The bolt assembly of the present embodiment is used to connect a self-threaded connection body, and thus only the screw 1 and the washer 3 are required. According to the utility model, the elastic sleeve 4 on the gasket 3 is clamped with the annular inclined groove 7 at the head of the screw 1, so that the gasket and the screw 1 form a connected piece which can rotate relatively but cannot be separated, meanwhile, after the bolt assembly is screwed down, the head of the screw 1 can apply a very large pressure to the gasket 3, so that the gasket 3 cannot move or rotate, and the screw 1 is limited by the threads on the connected body, so that the screw 1 can be kept in a fixed state through the mutual traction action of the connected pieces even under the condition of external forces such as vibration and the like, and the purpose of locking and loosening prevention is achieved.

In conclusion, the utility model is convenient to install and disassemble, does not damage the disassembled screw, gasket and nut, and can still be used continuously, thus saving the cost; meanwhile, the screw and the nut can be separately and independently screwed, so that the installation is convenient, the working efficiency can be improved, and the universality is greatly improved. Therefore, the anti-loosening locking device has the advantages of good anti-loosening locking effect, simple structure, convenience in use, low manufacturing cost and convenience for batch production.

Claims

1. The utility model provides a novel check bolt subassembly, includes screw (1), cover gasket (3) on the screw rod of screw (1) and with screw rod threaded connection's of screw (1) nut (2), its characterized in that: the end face of the gasket (3) is provided with an elastic sleeve (4) which is connected with the gasket (3) into a whole, the end face of the nut (2) is provided with an annular chute (7) which is clamped with the elastic sleeve (4) on the gasket (3), and the elastic sleeve (4) is pressed in the annular chute (7) so that the nut (2) and the gasket (3) form a connecting piece which can rotate relatively but cannot be separated.

2. The novel lockbolt assembly of claim 1 wherein: and the end face of the head of the screw (1) is provided with an annular chute (7) which is clamped with the elastic sleeve (4) on the gasket (3).

3. The novel lockbolt assembly of claim 1 or 2, wherein: the included angle between the annular chute (7) and the vertical plane is 1-3 degrees.

4. The novel lockbolt assembly of claim 1 or 2, wherein: expansion joints (5) are uniformly arranged on the circumference of the elastic sleeve (4).

5. The novel lockbolt assembly of claim 1 or 2, wherein: the depth of the annular chute (7) is greater than the height of the elastic sleeve (4).

6. The novel lockbolt assembly of claim 1 or 2, wherein: and four triangular convex ridges (6) are uniformly distributed on the other end face of the gasket (3), and the height of each triangular convex ridge (6) is 0.5-1.5 mm.