CN218817515U

CN218817515U - Anti-backing and anti-loosening nut

Info

Publication number: CN218817515U
Application number: CN202320137288.1U
Authority: CN
Inventors: 冀二民
Original assignee: Handan Yongnian District Weizheng Fastener Manufacturing Co ltd
Current assignee: Handan Yongnian District Weizheng Fastener Manufacturing Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-04-07
Anticipated expiration: 2033-01-17

Abstract

The utility model provides a prevent moving back locknut relates to nut technical field, including nut A, nut A's bottom is provided with the hollow tube, the bottom of hollow tube is provided with nut B, the equal fixed mounting of one end that nut A and nut B are close to the hollow tube has the extension pipe, the surface cover of extension pipe is equipped with annular stopper, fixed mounting between annular stopper and the extension pipe, the position department that the hollow tube inner wall is close to annular stopper has seted up annular spacing groove, rotate between annular stopper and the annular spacing groove and be connected. The utility model discloses in, through the setting of nut A, nut B, forward thread groove and reverse thread groove, make the nut when carrying out the fixing, take the nut B of reverse thread groove to support nut A, make nut A can firmly fix on the screw rod, avoided vibrating when mechanical operation and lead to the not hard up phenomenon of nut to produce, make the locking effect of moving back of preventing of nut better.

Description

Anti-backing and anti-loosening nut

Technical Field

The utility model relates to a nut technical field especially relates to a prevent moving back locknut.

Background

The nut is the part that links up mechanical equipment zonulae occludens, and through the screw thread of inboard, equal specification nut and bolt can link together, because of traditional nut only screws in on the screw rod through one-way screw thread and fixes, but when machinery starts work, machinery can vibrate to probably lead to the nut to follow the phenomenon production that the screw rod is not hard up because of the vibration, and the not hard up of nut probably influences mechanical normal operating, so need improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a retreat-preventing and anti-loose nut.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a prevent moving back locknut, includes nut A, nut A's bottom is provided with the hollow tube, the bottom of hollow tube is provided with nut B, nut A and nut B are close to the equal fixed mounting of one end of hollow tube and have the extension pipe, the surface cover of extension pipe is equipped with annular stopper.

In order to fix annular stopper for the convenience, the utility model discloses the improvement has, fixed mounting between annular stopper and the extension pipe.

In order to make nut A and nut B rotate in the hollow tube, the utility model discloses the improvement has, the position department that the hollow tube inner wall is close to annular stopper has seted up annular spacing groove, rotate between annular stopper and the annular spacing groove and be connected.

In order to make nut A reverse rotation to the screw rod on, the utility model discloses the improvement has, reverse thread groove has been seted up to nut A's inner wall.

In order to make nut B forward rotate to the screw rod on, the utility model discloses the improvement has, forward thread groove has been seted up to nut B's inner wall.

In order to make the nut fixed more firm, the utility model discloses the improvement has, nut B's bottom fixed mounting has the connecting block, the bottom fixed mounting of connecting block has the dish packing ring.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model discloses in, through the setting of nut A, nut B, forward thread groove and reverse thread groove, make the nut when fixing, take the nut B of reverse thread groove to support nut A, make nut A can firmly fix on the screw rod, avoided vibrating when mechanical operation and lead to the not hard up phenomenon of nut to produce, make the locking effect of moving back of nut better.

2. The utility model discloses in, through the setting of dish packing ring, make the nut after the installation, can be through the influence of dish packing ring elasticity, the direction gives nut A one to the power of nut B direction, makes nut A firmly fix on the screw rod.

Drawings

Fig. 1 is a schematic view of the anti-backing and anti-loosening nut of the present invention;

fig. 2 is a schematic view of a partial explosion structure of the anti-backing and anti-loosening nut of the present invention;

fig. 3 is the enlarged view of a position a in fig. 2 of the anti-loosening nut of the present invention.

Illustration of the drawings:

1. a nut A; 2. a nut B; 3. a hollow tube; 4. connecting blocks; 5. a disc-shaped washer; 6. a reverse thread groove; 7. a positive thread groove; 8. an extension pipe; 9. an annular stop block; 10. annular spacing groove.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Example one

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a prevent moving back locknut, including nut A1, reverse thread groove 6 has been seted up to nut A1's inner wall, nut A1's bottom is provided with hollow tube 3, hollow tube 3's bottom is provided with nut B2, forward thread groove 7 has been seted up to nut B2's inner wall, the equal fixed mounting of one end that nut A1 and nut B2 are close to hollow tube 3 has extension pipe 8, the surface cover of extension pipe 8 is equipped with annular stopper 9, fixed mounting between annular stopper 9 and the extension pipe 8, annular stopper 10 has been seted up to the position department that the 3 inner walls of hollow tube are close to annular stopper 9, rotate between annular stopper 9 and the annular stopper 10 and be connected, nut A1, nut B2, forward thread groove 7 and reverse thread groove 6's design is when making the nut when fixed, take reverse thread groove 6's nut B2 to support nut A1, make nut A1 can fix on the screw rod, avoided leading to the not hard up phenomenon of nut to produce because of vibration when machinery firmly moves, make the effect of preventing moving back of nut better.

Example two

Referring to fig. 1, a connecting block 4 is fixedly mounted at the bottom end of a nut B2, a disc-shaped washer 5 is fixedly mounted at the bottom end of the connecting block 4, and the disc-shaped washer 5 is designed to provide a force to the nut A1 in a direction toward the nut B2 under the influence of the elastic force of the disc-shaped washer 5 after the nut is mounted, so that the nut A1 is firmly fixed on the screw.

The working principle is as follows: when the nut is used, one end with the disc-shaped washer 5 is aligned with the screw, the nut A1 is rotated in the forward direction, the nut B2 is rotated in the reverse direction, the nut A1 and the nut B2 are rotated in the hollow pipe 3, and the screw is fixed on a machine after the nut is screwed down.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a prevent moving back locknut, includes nut A (1), its characterized in that: the bottom of nut A (1) is provided with hollow tube (3), the bottom of hollow tube (3) is provided with nut B (2), the equal fixed mounting of one end that nut A (1) and nut B (2) are close to hollow tube (3) has extension pipe (8), the surface cover of extension pipe (8) is equipped with annular stopper (9).

2. The anti-backing and anti-loosening nut as claimed in claim 1, wherein: the annular limiting block (9) and the extension pipe (8) are fixedly arranged.

3. The anti-backing and anti-loosening nut as claimed in claim 1, wherein: an annular limiting groove (10) is formed in the position, close to the annular limiting block (9), of the inner wall of the hollow tube (3), and the annular limiting block (9) is rotatably connected with the annular limiting groove (10).

4. The anti-backing and anti-loosening nut as claimed in claim 1, wherein: the inner wall of the nut A (1) is provided with a reverse thread groove (6).

5. The anti-backing and anti-loosening nut as claimed in claim 1, wherein: and a positive thread groove (7) is formed in the inner wall of the nut B (2).

6. The anti-back and anti-loose nut as claimed in claim 1, wherein: the bottom fixed mounting of nut B (2) has connecting block (4), the bottom fixed mounting of connecting block (4) has dish-shaped packing ring (5).