CN221257375U

CN221257375U - Anti-drop hexagonal nut

Info

Publication number: CN221257375U
Application number: CN202322875347.8U
Authority: CN
Inventors: 罗永伟; 袁峰军; 周李平; 潘爱忠; 马凯平
Original assignee: Jiaxing Lianyi Hardware Technology Co ltd
Current assignee: Jiaxing Lianyi Hardware Technology Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-07-02
Anticipated expiration: 2033-10-25

Abstract

The utility model relates to the technical field of fasteners, in particular to an anti-falling hexagonal nut which comprises a nut body, a nut top, an upper nut and a lower nut, wherein the nut top is arranged at the upper part of the nut body, the nut body is divided into the upper nut and the lower nut, a circle of concave wheels are arranged in the upper nut, and a circle of inner cams are arranged in the lower nut. The anti-falling hexagonal nut provided by the utility model adopts the inner cam to be matched with the concave wheel, meanwhile, the angle of the inner cam is larger than the thread pitch of the thread, so that a better anti-falling effect is achieved, higher golden share can be provided, the nut is ensured not to loosen under the condition of vibration or stress, the safety of the structure is ensured, meanwhile, the nut is simple in structure, mass production is facilitated, the time cost is reduced, and the working efficiency is improved.

Description

Anti-drop hexagonal nut

[ Field of technology ]

The utility model relates to the technical field of fasteners, in particular to a locking hexagonal round nut.

[ Background Art ]

Nuts are parts which are screwed together with bolts or screws to play a role in fastening, and all components which are necessary for manufacturing machines are classified into carbon steel, stainless steel, nonferrous metals and the like according to different materials. During practical application, the nut is usually combined with the nut on the bolt, so that the clamping and fixing of the mechanical element can be realized, the mechanical element is convenient to install, the nut can be widely applied to various fields, but the traditional nut is combined with the bolt only by adopting a simple threaded connection mode, the nut and the bolt can be loosened in the use process, the use of parts is affected, even faults are caused, and the use has high danger.

The prior anti-loosening hexagonal round nut has the following bulletin number: CN 216241771U comprises a nut body, a fixed ring, a rotating sleeve and a plurality of propping blocks, wherein an inner cavity is arranged in the middle of the rotating sleeve, a plurality of through holes are uniformly formed in the inner ring side wall of the inner cavity, and jacks are formed in the bottom side wall of the inner ring side wall of the inner cavity; the inner ring end of the top of the fixed ring is uniformly provided with a plurality of protruding blocks which are connecting blocks, the bottom end of the fixed ring is fixed at the top end of the nut body, a cylindrical fixed shaft is fixed in each vertical through hole of each connecting block, the top of the fixed ring is inserted into the inner cavity from the jack, and the bottom side wall of the connecting block is attached to the bottom side wall of the inner cavity; each abutting block is sleeved on the top of one fixed shaft, penetrates out of one through hole and abuts against the bolt.

According to the anti-loosening hexagonal round nut, a plurality of abutting blocks are adopted to apply resistance to the bolt, a plurality of working procedures are added in the production process, so that the hexagonal nut is complex in production and high in processing difficulty, and further the production cost and time are increased; due to the complex structure of the nut, the quality of the nut which is difficult to produce in the manufacturing process is ensured, and the nut can be failed in the using process.

[ utility model ]

In order to overcome the defects in the prior art, the utility model aims to provide the anti-falling hexagonal nut which is simple in structure, high in production speed and capable of saving cost and time, and the nut is fixed together by utilizing wedge effect and has higher anti-falling and anti-seismic properties.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-drop hexagonal nut, includes nut body, nut top, goes up nut, lower nut, nut body upper portion be equipped with the nut top, nut body divide into nut and lower nut, last nut in be equipped with round indent wheel, lower nut in be equipped with round interior cam.

Preferably, the nut body is a hexagon nut, the inside of the nut body is hollow, and threads are arranged on the inner wall of the nut body.

Preferably, the upper nut is in a shape with convex periphery and concave middle, the concave part in the upper nut is a concave part, and the concave part is provided with a concave wheel.

Preferably, the lower nut is in a shape with a convex middle and concave periphery, and an inner cam is arranged at the convex part of the convex part in the middle of the lower nut.

Preferably, the concave wheel and the inner cam are circular rings with inclination, and the concave wheel and the inner cam are mutually matched.

Preferably, the inner cam inclination angle is larger than the pitch of the screw thread.

Preferably, the nut top is hollow in the cylinder, the nut top is internally provided with a shockproof ring, and the shockproof ring is circular and is made of nylon or rubber materials.

Compared with the prior art, the utility model has the beneficial effects that: the anti-falling hexagonal nut provided by the utility model adopts the inner cam to be matched with the concave wheel, meanwhile, the angle of the inner cam is larger than the thread pitch of the thread, so that a better anti-falling effect is achieved, higher golden share can be provided, the nut is ensured not to loosen under the condition of vibration or stress, the safety of the structure is ensured, meanwhile, the nut is simple in structure, mass production is facilitated, the time cost is reduced, and the working efficiency is improved.

[ Description of the drawings ]

FIG. 1 is a side view of an anti-drop hex nut according to the present utility model;

FIG. 2 is a view showing the internal structure of the anti-drop hex nut according to the present utility model;

FIG. 3 is a top view of an anti-drop hex nut according to the present utility model;

In the figure: 1-nut body, 11-screw thread, 2-nut top, 21-shockproof ring, 3-upper nut, 31-concave part, 32-concave wheel, 4-lower nut, 41-convex part and 42-inner cam.

[ Detailed description ] of the invention

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in an embodiment of the present utility model, an anti-falling hexagonal nut includes a nut body 1, a nut top 2, an upper nut 3, and a lower nut 4, wherein the nut top 2 is disposed at the upper portion of the nut body 1, the nut body is divided into the upper nut 3 and the lower nut 4, a circle of concave wheels 32 is disposed in the upper nut 4, and a circle of inner cams 42 is disposed in the lower nut 4. The upper nut 3 is in a shape with convex periphery and concave middle, the middle concave part in the upper nut 3 is a concave part 31, and a concave wheel 32 is arranged at the concave part 31; the lower nut 4 is in a shape with a convex middle and concave periphery, the convex part in the middle of the lower nut 4 is a convex part 41, an inner cam 42 is arranged at the convex part 41, the concave wheel 32 and the inner cam 42 are circular rings with inclination, and the concave wheel 32 and the inner cam 42 are mutually engaged. The inner cam 42 has an inclination angle greater than the pitch of the thread 11.

The nut top 2 is hollow in the cylinder, the shockproof ring 21 is arranged in the nut top 2, and the shockproof ring 21 is in a circular ring shape and is made of nylon or rubber materials.

Working principle: when the anti-drop hexagonal nut is used, the lower nut 4 of the nut main body 1 is preferentially screwed into the bolt, then the upper nut 3 is screwed into the bolt, at the moment, the concave part 31 of the upper nut gradually enters the convex part 41 of the lower nut 4, meanwhile, the concave wheels 32 of the upper nut and the lower nut are mutually matched with the inner cam 42 at the connecting part, and as the inclination angle of the inner cam 42 is larger than the pitch of the thread 11, a wedge effect can be generated when the nut is subjected to vibration or stress, the nut is difficult to loose and difficult to drop, the stability of the structure is ensured.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. The utility model provides an anti-drop hex nut, includes nut body (1), nut top (2), goes up nut (3), lower nut (4), its characterized in that: the nut is characterized in that a nut top (2) is arranged on the upper portion of the nut body (1), the nut body is divided into an upper nut (3) and a lower nut (4), a circle of concave wheels (32) are arranged in the upper nut (3), and a circle of inner cams (42) are arranged in the lower nut (4).

2. The anti-drop hex nut according to claim 1, wherein: the nut body (1) is a hexagon nut, the inside of the nut body (1) is hollow, and threads (11) are arranged on the inner wall of the nut body (1).

3. The anti-drop hex nut according to claim 1, wherein: the upper nut (3) is in a shape with convex periphery and concave middle, the concave part in the upper nut (3) is a concave part (31), and an inner concave wheel (32) is arranged at the concave part (31).

4. The anti-drop hex nut according to claim 1, wherein: the lower nut (4) is in a shape with a convex middle and concave periphery, the convex middle part inside the lower nut (4) is a convex part (41), and an inner cam (42) is arranged at the convex part (41).

5. A drop-resistant hex nut according to claim 3 or 4, wherein: the concave wheel (32) and the inner cam (42) are circular rings with inclination, and the concave wheel (32) is mutually matched with the inner cam (42).

6. The anti-drop hex nut according to claim 1, wherein: the inclination angle of the inner cam (42) is larger than the pitch of the thread (11).

7. The anti-drop hex nut according to claim 1, wherein: the nut top (2) is hollow in the cylinder, the shockproof ring (21) is arranged in the nut top (2), and the shockproof ring (21) is in a circular ring shape and is made of nylon or rubber materials.