CN217603140U

CN217603140U - Anti-loose nut

Info

Publication number: CN217603140U
Application number: CN202123088125.9U
Authority: CN
Inventors: 李飞
Original assignee: Wuxi Feisheng Hardware Products Co ltd
Current assignee: Wuxi Feisheng Hardware Products Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-10-18
Anticipated expiration: 2031-12-09

Abstract

The utility model provides a locknut, including the nut body, this internal steel wire swivel nut that is equipped with of nut, the one end of nut body is connected with lock washer, and lock washer includes first packing ring and second packing ring, and first packing ring setting is in the one side of being close to the nut body, and the second packing ring setting is in the one side of keeping away from the nut body, through the viscose adhesion between first packing ring and the second packing ring. The locknut can effectively solve the problem that the bolt assembly is loosened in the vibration environment.

Description

Anti-loose nut

Technical Field

The utility model relates to a fastener technical field, concretely relates to locknut.

Background

Bolt assemblies are one type of fastener that is used primarily to fasten two or more components. The safety device comprises a bolt and a nut, a small bolt is loosened, so that a great safety accident is possibly caused, potential safety hazards exist, and the safety accident caused by one screw often happens.

The loose reason of bolt assembly is because the vibration mostly, has also proposed some structures that prevent the bolt not hard up among the prior art at present, for example encapsulating, split type nut, spring washer etc. above method is not hard up problem of bolt assembly to a certain extent, but still has certain problem. The utility model aims at providing a locknut promptly.

Disclosure of Invention

For overcoming the not enough of prior art, the utility model provides a lock nut can effectively solve the not hard up problem of bolt assembly in the vibration environment.

In order to achieve the purpose, the utility model discloses a lock nut, including the nut body, this internal steel wire swivel nut that is equipped with of nut, the one end of nut body is connected with lock washer, and lock washer includes first packing ring and second packing ring, and first packing ring setting is in the one side that is close the nut body, and the second packing ring setting is in the one side of keeping away from the nut body, through the viscose adhesion between first packing ring and the second packing ring.

Furthermore, the one side that first packing ring and second packing ring contacted is equipped with a plurality of first interior sawtooth of radially arranging, and the one side that second packing ring and first packing ring contacted is equipped with a plurality of second interior sawtooth of radially, and sawtooth is oblique sawtooth in sawtooth and the second in the first, and sawtooth opposite direction and the lock of each other in sawtooth and the second in the first.

Furthermore, one side of the first gasket, which is far away from the second gasket, is provided with a plurality of radially-arranged first outer sawteeth, one side of the second gasket, which is far away from the first gasket, is provided with a plurality of radially-arranged second outer sawteeth, and the first outer sawteeth and the second outer sawteeth are regular sawteeth.

Further, the thread angle of the first inner serrations and the second inner serrations is greater than the thread angle of the nut body.

Further, the outer diameter of the wire thread insert in a free state is larger than the inner diameter of the nut body.

Furthermore, a locking ring is arranged on the steel wire thread insert, and the projection of the locking ring on the end face of the nut body is in a regular hexagon shape.

The utility model discloses a locknut can effectively solve bolt assembly not hard up problem in the vibration environment.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a plan view of a locknut according to a preferred embodiment of the present invention;

fig. 2 is a side view of a locknut according to a preferred embodiment of the present invention.

Reference numerals: 1. a nut body; 21. a first gasket; 211. a first inner serration; 212. a first outer serration; 22. a second gasket; 221. a second inner serration; 222. a second outer serration; 3. a wire thread insert; 31. and a locking ring.

Detailed Description

The technical solutions of the present invention will be more clearly and completely explained below through the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a lock nut of preferred embodiment, including nut body 1, be equipped with steel wire swivel nut 3 in the nut body 1, the one end of nut body 1 is connected with lock washer, and lock washer includes first packing ring 21 and second packing ring 22, and first packing ring 21 sets up in the one side that is close to nut body 1, and second packing ring 22 sets up in the one side of keeping away from nut body 1, through the viscose adhesion between first packing ring 21 and the second packing ring 22.

As shown in fig. 1 and 2, a plurality of first inner saw teeth 211 radially arranged are disposed on a surface of the first gasket 21 contacting the second gasket 22, a plurality of second inner saw teeth 221 radially disposed on a surface of the second gasket 22 contacting the first gasket 21, the first inner saw teeth 211 and the second inner saw teeth 221 are oblique saw teeth, and the first inner saw teeth 211 and the second inner saw teeth 221 are opposite in direction and can be fastened to each other.

As shown in fig. 1 and 2, the thread angles of the first and second

inner serrations

211 and 221 are larger than the thread angle of the nut body 1. Specifically, the thread angle of the first inner saw teeth 211 and the second inner saw teeth 221 is 10 °, and the thread angle of the nut body 1 is 60 ° (v/v)

As shown in fig. 1 and 2, a plurality of radially arranged first outer saw teeth 212 are disposed on a surface of the first gasket 21 facing away from the second gasket 22, a plurality of radially arranged second outer saw teeth 222 are disposed on a surface of the second gasket 22 facing away from the first gasket 21, and the first outer saw teeth 212 and the second outer saw teeth 222 are regular saw teeth. The outer saw teeth are used for increasing the friction force between the fastening face and the anti-loosening washer, and further strengthening the stability of the bolt assembly.

As shown in fig. 1 and 2, the outer diameter of the wire thread insert 3 in the free state is larger than the inner diameter of the nut body 1. The locking ring 31 is arranged on the wire thread insert 3, and the projection of the locking ring 31 on the end face of the nut body 1 is a regular hexagon.

Through the dual locking effect of lock washer and steel wire swivel nut, the utility model discloses a lock nut can effectively solve the not hard up problem of bolt assembly in the vibration environment.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The utility model provides a locknut, its characterized in that, includes the nut body, this internal steel wire swivel nut that is equipped with of nut, the one end of nut body is connected with lock washer, lock washer includes first packing ring and second packing ring, first packing ring sets up in the one side that is close the nut body, the second packing ring sets up in the one side of keeping away from the nut body, through the viscose adhesion between first packing ring and the second packing ring.

2. The locknut of claim 1, wherein a plurality of first radially arranged inner saw teeth are arranged on the surface of the first washer, which is in contact with the second washer, a plurality of second radially arranged inner saw teeth are arranged on the surface of the second washer, which is in contact with the first washer, the first inner saw teeth and the second inner saw teeth are oblique saw teeth, and the first inner saw teeth and the second inner saw teeth are opposite in direction and can be mutually buckled.

3. The locknut of claim 1, wherein a plurality of radially arranged first outer saw teeth are arranged on a surface of the first washer facing away from the second washer, a plurality of radially arranged second outer saw teeth are arranged on a surface of the second washer facing away from the first washer, and the first outer saw teeth and the second outer saw teeth are regular saw teeth.

4. The locknut of claim 2, wherein the thread angle of the first and second inner serrations is greater than the thread angle of the nut body.

5. The locknut of claim 1 wherein the outer diameter of the wire thread insert in a free state is larger than the inner diameter of the nut body.

6. The locknut of claim 5, wherein the locking ring is arranged on the wire thread insert, and the projection of the locking ring on the end face of the nut body is a regular hexagon.