CN217761675U

CN217761675U - Anti-loose nut

Info

Publication number: CN217761675U
Application number: CN202221450528.5U
Authority: CN
Inventors: 施勇亮
Original assignee: Jiaxing Haijin Hardware Technology Co ltd
Current assignee: Jiaxing Haijin Hardware Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-11-08
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a locknut, including nut main part, blind hole, spring, slider, spacing pipe, straight-bar, briquetting, the terminal surface is equipped with a plurality of blind hole that the axial set up under the nut main part, is equipped with the slider in the blind hole, even has the spring between slider up end and the blind hole bottom, and the terminal surface is equipped with the straight-bar that sets up downwards under the slider, and spacing pipe is established at blind hole lower extreme, and the straight-bar lower extreme passes spacing inside pipe hole, and the straight-bar left end face is equipped with the briquetting. The utility model has the advantages of simple structure and reasonable design, can make the nut screw up the difficult not hard up in back.

Description

Anti-loose nut

[ technical field ] A

The utility model relates to a technical field of nut, especially a locknut's technical field.

[ background of the invention ]

The nut is a nut, and is screwed together with a bolt or a screw rod to play a role in fastening, and one element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials. The conventional nut is easy to loosen after being screwed, so that it is necessary to provide a locknut.

[ Utility model ] content

The utility model aims at solving the problem in the prior art and providing a locknut, which can lead the locknut to be difficult to loosen after being screwed up.

In order to achieve the purpose, the utility model provides a locknut, including nut main part, blind hole, spring, slider, spacing pipe, straight-bar, briquetting, the terminal surface is equipped with a plurality of blind hole that the axial set up under the nut main part, is equipped with the slider in the blind hole, even has the spring between slider up end and the blind hole bottom, and the terminal surface is equipped with the straight-bar that sets up downwards under the slider, and spacing pipe is established at blind hole lower extreme, and the straight-bar lower extreme passes spacing inside pipe hole, and the straight-bar left end face is equipped with the briquetting.

Preferably, the upper end face of the nut main body is provided with a coaxial internal thread through hole, the blind holes are formed in the outer side of the internal thread through hole, and the blind holes are uniformly distributed in a circumferential manner by taking the axis of the internal thread through hole as the circle center.

Preferably, the blind hole is a non-circular hole, the sliding block is adapted to the blind hole, and the sliding block can axially slide in the blind hole.

Preferably, the straight rod is coaxial with the blind hole.

Preferably, the limiting pipe is coaxial with the blind hole, the lower end face of the limiting pipe is coplanar with the lower end face of the nut main body, and a first sealing ring is arranged in the inner hole of the limiting pipe.

Preferably, the pressing block is radially arranged below the nut main body, and anti-skid grains are arranged on the left end face of the pressing block.

Preferably, the lower end face of the nut main body is provided with a coaxial limiting ring, the limiting ring is arranged on the outer sides of the straight rods, the inner hole wall of the limiting ring is pressed on the right end face of the straight rod, and the lower end face of the limiting ring is provided with a coaxial second sealing ring.

Preferably, the spring is in a compressed state.

The utility model has the advantages that: the utility model has simple structure and reasonable design, and can ensure that the nut is not easy to loose after being screwed; when the lower end face of the pressing block is far away from the installation surface at the edge of the screw rod by arranging the spring in a compression state, the pressing block is far away from the nut main body in the screwing process of the nut main body, the lower end of the straight rod is bent outwards through the elasticity of the pressing block, so that the pressing block is not easy to influence the screwing of the nut main body, and meanwhile, after the nut main body is completely screwed down, the nut main body can be subjected to an axially upward force under the elasticity of the spring, so that the internal thread of the internal thread through hole presses the external thread of the screw rod, the friction force between the nut main body and the screw rod is increased, the nut main body is not easy to loosen, and meanwhile, the pressing block can be pressed on the side wall of the screw rod by the limiting ring, so that the nut main body is not easy to loosen; by arranging the first sealing ring, foreign matters are not easy to enter the inner hole of the blind hole, the spring and the sliding block are not easy to corrode, and the service lives of the spring and the sliding block are prolonged; by arranging the second sealing ring, foreign matters are not easy to enter the inner side of the limiting ring after the nut main body is screwed down, so that the long straight rod and the pressing block are not easy to corrode, and the service lives of the straight rod and the pressing block are prolonged; through the blind hole that sets up non-round hole and the slider of mutual adaptation, prevent that the straight-bar from rotating.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic front view of a locknut of the present invention.

[ detailed description ] embodiments

Referring to fig. 1, the utility model relates to a locknut, including nut main part 1, blind hole 2, spring 21, slider 22, spacing pipe 221, straight-bar 23, briquetting 24, 1 terminal surface is equipped with a plurality of blind hole 2 that the axial set up under the nut main part, is equipped with slider 22 in the blind hole 2, even has spring 21 between slider 22 up end and the blind hole 2 hole bottoms, and the terminal surface is equipped with the straight-bar 23 of downward setting under the slider 22, and spacing pipe 221 is established at 2 hole lower extremes of blind hole, and the straight-bar 23 lower extreme passes spacing pipe 221 holes, and straight-bar 23 left end face is equipped with briquetting 24.

Wherein, nut main part 1 up end is equipped with coaxial internal thread through-hole 10, and a plurality of blind hole 2 is established in the internal thread through-hole 10 outside, and a plurality of blind hole 2 is the circumference form evenly distributed with internal thread through-hole 10 axis as the centre of a circle.

The blind hole 2 is a non-circular hole, the sliding block 22 is adapted to the blind hole 2, and the sliding block 22 can axially slide in the blind hole 2.

Wherein the straight rod 23 is coaxial with the blind hole 2.

The limiting pipe 221 is coaxial with the blind hole 2, the lower end face of the limiting pipe 221 is coplanar with the lower end face of the nut body 1, and a first sealing ring 222 is arranged in an inner hole of the limiting pipe 221.

Wherein, briquetting 24 radially sets up in nut main part 1 below, and briquetting 24 left end face is equipped with anti-skidding line 241.

The lower end face of the nut body 1 is provided with a coaxial limiting ring 25, the limiting ring 25 is arranged on the outer side of the straight rods 23, the inner hole wall of the limiting ring 25 is pressed on the right end face of the straight rods 23, and the lower end face of the limiting ring 25 is provided with a coaxial second sealing ring 251.

Wherein the spring 21 is in a compressed state.

The utility model discloses the working process:

the utility model relates to a locknut in the working process;

the first step is as follows: taking the lower end of the nut main body 1 as a screwing end, and screwing the nut main body 1 on a screw rod;

the second step is that: the nut body 1 is screwed, and the lower end of the straight rod 23 is bent outwards through the elasticity of the straight rod;

the third step: the nut body 1 is further screwed down, so that the lower end face of the pressing block 24 and the lower end face of the second sealing ring 251 press the mounting face of the edge of the screw, at the moment, the limiting ring 25 presses the pressing block 24 on the side wall of the screw, and the nut body 1 is not easy to loosen.

The utility model has simple structure and reasonable design, and can ensure that the nut is not easy to loosen after being screwed up; when the lower end face of the pressing block 24 is far away from the installation face of the edge of the screw rod by arranging the spring 21 in a compression state, the pressing block 24 is far away from the nut main body 1 in the screwing process of the nut main body 1, the lower end of the straight rod 23 is bent outwards through the elasticity of the lower end face, so that the pressing block 24 is not easy to influence the screwing of the nut main body 1, and meanwhile, after the nut main body 1 is completely screwed, under the elasticity of the spring 21, the nut main body 1 can be subjected to an axially upward force, so that the internal thread of the internal thread through hole 10 presses the external thread of the screw rod, the friction force between the nut main body 1 and the screw rod is increased, the nut main body 1 is not easy to loosen, and meanwhile, the pressing block 24 can be pressed on the side wall of the screw rod by the limiting ring 25, so that the nut main body 1 is not easy to loosen; by arranging the first sealing ring 222, foreign matters are not easy to enter the inner hole of the blind hole 2, so that the spring 21 and the sliding block 22 are not easy to corrode, and the service lives of the spring 21 and the sliding block 22 are prolonged; by arranging the second seal ring 251, foreign matters are not easy to enter the inner side of the limiting ring 25 after the nut main body 1 is screwed down, so that the long straight rod 23 and the pressing block 24 are not easy to corrode, and the service lives of the straight rod 23 and the pressing block 24 are prolonged; the straight rod 23 is prevented from rotating by the blind hole 2 which is not a round hole and the sliding block 22 which are mutually adaptive.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any is right the utility model discloses scheme after simply changing all belongs to the protection scope of the utility model.

Claims

1. A locknut is characterized in that: including nut main part (1), blind hole (2), spring (21), slider (22), spacing pipe (221), straight-bar (23), briquetting (24), the terminal surface is equipped with a plurality of blind hole (2) that the axial set up under nut main part (1), is equipped with slider (22) in blind hole (2), even has spring (21) between slider (22) up end and blind hole (2) hole bottom, and the terminal surface is equipped with straight-bar (23) that set up downwards under slider (22), and establish at blind hole (2) hole lower extreme spacing pipe (221), and straight-bar (23) lower extreme passes spacing pipe (221) hole, and straight-bar (23) left end face is equipped with briquetting (24).

2. A locknut as claimed in claim 1, wherein: the nut is characterized in that the upper end face of the nut body (1) is provided with a coaxial internal thread through hole (10), a plurality of blind holes (2) are formed in the outer side of the internal thread through hole (10), and the plurality of blind holes (2) are uniformly distributed in a circumferential manner by taking the axis of the internal thread through hole (10) as the circle center.

3. A locknut as claimed in claim 1, wherein: the blind hole (2) is a non-circular hole, the sliding block (22) is matched with the blind hole (2), and the sliding block (22) can axially slide in the blind hole (2).

4. A locknut as claimed in claim 1, wherein: the straight rod (23) is coaxial with the blind hole (2).

5. A locknut as claimed in claim 1, wherein: spacing pipe (221) are coaxial with blind hole (2), and terminal surface and nut main part (1) lower terminal surface coplane under spacing pipe (221), and spacing pipe (221) hole is equipped with first sealing washer (222).

6. A locknut as claimed in claim 1, wherein: the pressing block (24) is radially arranged below the nut main body (1), and anti-skid grains (241) are arranged on the left end face of the pressing block (24).

7. A locknut as claimed in claim 1, wherein: the nut is characterized in that a coaxial limiting ring (25) is arranged on the lower end face of the nut body (1), the limiting ring (25) is arranged on the outer side of the straight rods (23), the inner hole wall of the limiting ring (25) is pressed on the right end face of the straight rods (23), and a coaxial second sealing ring (251) is arranged on the lower end face of the limiting ring (25).

8. A locknut as claimed in claim 1, wherein: the spring (21) is in a compressed state.