CN212003897U

CN212003897U - Anti-theft nut with self-locking structure

Info

Publication number: CN212003897U
Application number: CN202020590092.4U
Authority: CN
Inventors: 江海春; 娄诗烨
Original assignee: Zhejiang Zhongdian Anti Theft Fastener Co ltd
Current assignee: Zhejiang Zhongdian Anti Theft Fastener Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-24
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a take anti-theft nut of auto-lock structure, including the nut main part, be provided with the inner ring on the nut main part inner wall, and be provided with first spring in the inner ring, one side of first spring is provided with left ring piece, and one side of left ring piece is provided with the bolt, one side of bolt is provided with right ring piece, and one side of right ring piece is provided with the second spring to the right side of second spring is provided with the inner ring, left side ring piece is the same with right ring piece structure. This take anti-theft nut of auto-lock structure has seted up the inner ring on adopting nut main part inner wall, and the inner wall and the first spring of inner ring and second spring are connected through the welding, and first spring and second spring can be connected left ring piece and right ring piece respectively after that, then can obtain the extrusion through the cushion on the bolt with nut main part inner wall and connect, and the cushion can be connected left ring piece and right ring piece to both sides extrusion simultaneously, and bolt and nut main part connection can be more firm like this.

Description

Anti-theft nut with self-locking structure

Technical Field

The utility model relates to a nut equipment technical field specifically is a take self-locking structure's antitheft nut.

Background

The nut is a nut, and is screwed together with a bolt or a screw rod to play a role in fastening, an element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and the like according to different materials, the nut is a part for tightly connecting mechanical equipment, and the nut and the bolt can be connected together only through inner threads, for example, the nut of M4-P0.7 can be connected with the bolt of M4-P0.7 series (in the nut, M4 means that the inner diameter of the nut is about 4mm, and 0.7 means that the distance between two thread teeth is 0.7 mm); also, for example, 1/4-20 nuts can only fit 1/4-20 screws (1/4 means that the nut has an inner diameter of about 0.25 inch, and 20 means that there are 20 teeth per inch), and the self-locking nut [1] is a nut that can self-lock by friction. The general nut can be loosened by itself due to vibration and other reasons in the using process, and in order to prevent the phenomenon, the self-locking nut is invented. The self-locking nut has the functions of anti-loosening and anti-vibration. Used in special occasions. The working principle is generally self-locking by friction force. The self-locking nut is classified according to functions and comprises a nylon ring embedded, a neck-closing device and a metal anti-loosening device. They are all effective torque type locknuts, and the anti-theft nut with a self-locking structure is one of the self-locking nuts.

The existing nut on the market can automatically loosen due to vibration and other reasons in the using process, so that the use of people cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take self-locking structure's antitheft nut to solve the nut that provides in the above-mentioned background art and can loosen the problem of taking off by oneself because other reasons such as vibration are in the use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take anti-theft nut of auto-lock structure, includes the nut main part, be provided with the inner ring on the nut main part inner wall, and be provided with first spring in the inner ring, one side of first spring is provided with left ring piece, and one side of left ring piece is provided with the bolt, one side of bolt is provided with right ring piece, and one side of right ring piece is provided with the second spring to the right side of second spring is provided with the inner ring.

Preferably, the left ring block and the right ring block have the same structure, and are elastically connected through a first spring and a second spring.

Preferably, the left ring block and the right ring block are respectively matched with the inner ring.

Preferably, the length of the superposition of the first spring and the left ring block is greater than the wall thickness of the nut body.

Preferably, the first spring and the second spring are symmetrically distributed about the inner wall of the nut body.

Preferably, the inner wall of the nut body is provided with a cushion block, and the cushion block is made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that: this take anti-theft nut of auto-lock structure has seted up the inner ring on adopting nut main part inner wall, and the inner wall and the first spring of inner ring and second spring are connected through the welding, and first spring and second spring can be connected left ring piece and right ring piece respectively after that, then can obtain the extrusion through the cushion on the bolt with nut main part inner wall and connect, and the cushion can be connected left ring piece and right ring piece to both sides extrusion simultaneously, and bolt and nut main part connection can be more firm like this.

Drawings

Fig. 1 is a front view of a theft-proof nut with a self-locking structure of the present invention;

fig. 2 is a top view of the anti-theft nut with the self-locking structure of the present invention;

fig. 3 is an enlarged schematic view of a position a in fig. 1 of a burglar nut with a self-locking structure according to the present invention.

In the figure: 1. the nut comprises a left ring block, 2, a first spring, 3, an inner ring, 4, a nut body, 5, a right ring block, 6, a second spring, 7, a cushion block, 8 and a bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-theft nut with a self-locking structure comprises a nut body 4, wherein an inner ring 3 is arranged on the inner wall of the nut body 4, the inner ring 3 is arranged on the inner wall of the nut body 4, a cushion block 7 is arranged on the inner wall of the nut body 4, the cushion block 7 is made of rubber, the structure enables the outer wall of a bolt 8 and the cushion block 7 on the inner wall of the nut body 4 to be in interference fit connection when the bolt 8 and the nut body 4 are in threaded connection, a first spring 2 is arranged in the inner ring 3, the inner wall of the inner ring 3 and the first spring 2 are connected through welding, the superposed length of the first spring 2 and a left ring block 1 is larger than the wall thickness of the nut body 4, the structure enables the left ring block 1 and a right ring block 5 to be in extrusion threaded connection through the bolt 8 when the nut body 4 and the bolt 8 are connected, and the first spring 2 and a second spring 6 are symmetrically distributed on, the structure enables a left ring block 1 and a right ring block 5 to be extruded to the outer wall of a bolt 8 to be connected through a first spring 2 and a second spring 6, one side of the first spring 2 is provided with the left ring block 1, the right side of the first spring 2 is connected with the left ring block 1 through welding, the left ring block 1 and the right ring block 5 are identical in structure, the left ring block 1 and the right ring block 5 are elastically connected through the first spring 2 and the second spring 6, the structure enables a nut body 4 to be aligned to the upper end of the bolt 8 when the nut body 4 and the bolt 8 are in threaded connection, then the nut body 4 can be rotated clockwise, then the left ring block 1 and the right ring block 5 in an inner ring 3 on the inner wall of the nut body 4 can be in threaded extrusion connection with the bolt 8, the left ring block 1 and the right ring block 5 are respectively matched with the inner ring 3, the structure enables the left ring block 1 and the right ring block 5 to be elastically connected with the inner ring 3 through the first spring 2 and the second spring 6, thus, the left ring block 1 and the right ring block 5 can be in elastic extrusion threaded connection with the bolt 8, one side of the left ring block 1 is provided with the bolt 8, the right side of the left ring block 1 is in threaded connection with the bolt 8, one side of the bolt 8 is provided with the right ring block 5, the right side of the bolt 8 is in threaded connection with the right ring block 5, one side of the right ring block 5 is provided with the second spring 6, the right side of the right ring block 5 is connected with the second spring 6 through welding, the right side of the second spring 6 is provided with the inner ring 3, the inner walls of the second spring 6 and the inner ring 3 are connected through welding, the structure enables the anti-theft nut with the self-locking structure to adopt the structure that the inner ring 3 is arranged on the inner wall of the nut main body 4, the inner wall of the inner ring 3 is connected with the first spring 2 and the second spring 6 through welding, and then the first spring 2 and the second spring 6 can respectively connect the left ring block 1, then the cushion block 7 on the inner wall of the nut main body 4 can be connected in a squeezing mode through the bolt 8, meanwhile, the cushion block 7 can be used for connecting the left ring block 1 and the right ring block 5 in a squeezing mode towards two sides, and therefore the bolt 8 and the nut main body 4 can be connected more firmly.

The working principle is as follows: when using this take self-locking structure's antitheft nut, whether the device has the part damage or connects the condition insecure earlier, use after the inspection is errorless, when carrying out nut main part 4 and bolt 8 and connecting, can aim at the upper end of bolt 8 with nut main part 4, can carry out clockwise rotation with nut main part 4 afterwards, then nut main part 4 can form interference fit with the cushion 7 on the nut main part 4 inner wall and be connected, nut main part 4 is moving downwards after that, then left ring piece 1 and right ring piece 5 on the nut main part 4 inner wall can carry out extrusion connection with the outer wall of bolt 8, left ring piece 1 just so and right ring piece 5 can form elasticity extrusion threaded connection with bolt 8, thereby bolt 8 and nut main part 4 are connected can be more firm, this is exactly this take self-locking structure's antitheft nut's theory of operation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a take self-locking structure's antitheft nut which characterized in that: including nut main part (4), be provided with inner ring (3) on nut main part (4) inner wall, and be provided with first spring (2) in inner ring (3), one side of first spring (2) is provided with left ring piece (1), and one side of left ring piece (1) is provided with bolt (8), one side of bolt (8) is provided with right ring piece (5), and one side of right ring piece (5) is provided with second spring (6) to the right side of second spring (6) is provided with inner ring (3).

2. The anti-theft nut with the self-locking structure according to claim 1, characterized in that: the left ring block (1) and the right ring block (5) are identical in structure, and the left ring block (1) and the right ring block (5) are elastically connected through a first spring (2) and a second spring (6).

3. The anti-theft nut with the self-locking structure according to claim 1, characterized in that: the left ring block (1) and the right ring block (5) are respectively matched with the inner ring (3).

4. The anti-theft nut with the self-locking structure according to claim 1, characterized in that: the length of the first spring (2) and the left ring block (1) in a superposed mode is larger than the wall thickness of the nut body (4).

5. The anti-theft nut with the self-locking structure according to claim 1, characterized in that: the first spring (2) and the second spring (6) are symmetrically distributed around the inner wall of the nut body (4).

6. The anti-theft nut with the self-locking structure according to claim 1, characterized in that: the inner wall of the nut body (4) is provided with a cushion block (7), and the cushion block (7) is made of rubber.