Lock nut

Abstract

The utility model discloses a locknut, including antiskid gasket, nut body and protection part, the top fixedly connected with self -tightening piece of antiskid gasket, the top of self -tightening piece is around and is connected and is provided with first geometric wedge structure, the bottom of antiskid gasket is provided with antiskid structure, the bottom of nut body is provided with second geometric wedge structure, and second geometric wedge structure and first geometric wedge structure are mutually adapted, the protection part sets up in the outer wall of nut body, and the protection part is used for the extrusion buffer of nut body screwing, the utility model discloses the protection part has been set up in the lateral wall of nut body, and the protection part buffers extrusion force when nut body screws, to avoid the finger bruise, and the scheme has set up the reinforcing sheet between antiskid gasket and self -tightening piece, to further guarantee the strength that antiskid gasket and self -tightening piece are connected, guarantee the stability when nut body is used in screwing.

Description

Technical Field

[0001] This utility model relates to the field of nuts, and in particular to an anti-loosening nut. Background Technology

[0002] A nut is a fastener used for mechanical connections, typically in conjunction with bolts or screws. Anti-loosening nuts, when connected to bolted structures, need to prevent loosening under external factors such as vibration and impact.

[0003] An existing self-locking nut structure achieves its self-locking function through the geometric wedge-shaped structure between the washer and the nut body. When unlocking this type of nut structure, the washer and the lock nut must be loosened together first. After that, by increasing the gap between the washer and the nut body, the geometric wedge-shaped structure can be removed. However, since the nut body is a hexagonal structure with side edges, it is easy to hurt fingers when tightening. In view of this, this solution proposes a lock nut to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an anti-loosening nut to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lock nut, comprising:

[0006] An anti-slip pad, wherein a self-tightening block is fixedly connected to the top of the anti-slip pad, and a first geometric wedge structure is arranged around the top of the self-tightening block, and an anti-slip structure is provided at the bottom of the anti-slip pad;

[0007] The nut body has a second geometric wedge structure at its bottom end, and the second geometric wedge structure is adapted to the first geometric wedge structure.

[0008] A protective part is provided on the outer wall of the nut body, and the protective part is used for compression buffering when the nut body is screwed.

[0009] Preferably, the anti-slip pad and the self-tightening block have a through hole in the middle, and the through hole is used for the insertion of the screw.

[0010] Preferably, the anti-slip structure includes inclined grooves, and a plurality of the inclined grooves are formed around the bottom end of the anti-slip pad.

[0011] Preferably, a plurality of reinforcing plates are fixedly connected around the top of the anti-slip pad and the side of the bottom of the self-tightening block, and the reinforcing plates are used for side support at the connection between the self-tightening block and the anti-slip pad.

[0012] Preferably, the side wall of the nut body is provided with multiple connecting grooves, and the protective part is connected to the connecting grooves.

[0013] Preferably, the connecting part includes a plurality of rubber strips, which are respectively fitted into a plurality of connecting grooves.

[0014] Preferably, the nut body has an internal thread in the middle, which is used to mate with the thread on the outer wall of the nut.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This invention features a protective section on the side wall of the nut body. This protective section buffers the squeezing force when the nut body is screwed on, thus preventing finger injuries. Furthermore, a reinforcing plate is provided between the anti-slip pad and the self-tightening block, thereby further ensuring the strength of the connection between the anti-slip pad and the self-tightening block and ensuring the stability of the nut body during screwing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a top view of the overall structure of this utility model.

[0019] Figure 3 This is a side view of the overall structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the connection structure between the anti-slip pad and the self-tightening block of this utility model.

[0021] Figure 5 This is a schematic diagram of the nut body of this utility model.

[0022] In the figure: 1. Anti-slip pad; 11. Self-tightening block; 12. Through hole; 13. Inclined groove; 14. Reinforcing plate; 15. First geometric wedge structure; 2. Nut body; 21. Rubber strip; 22. Internal thread; 23. Second geometric wedge structure. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1 - Figure 5The anti-loosening nut shown includes an anti-slip washer 1, a nut body 2, and a protective part. The top end of the anti-slip washer 1 is fixedly connected to a self-tightening block 11, and the top end of the self-tightening block 11 is provided with a first geometric wedge structure 15 around it. The bottom end of the anti-slip washer 1 is provided with an anti-slip structure.

[0025] Specifically, a through hole 12 is provided in the middle of the anti-slip pad 1 and the self-tightening block 11. The through hole 12 is used for the insertion of the screw. The anti-slip structure includes a groove 13. Multiple grooves 13 are opened around the bottom end of the anti-slip pad 1. Multiple reinforcing plates 14 are fixedly connected around the top end of the anti-slip pad 1 and the bottom side of the self-tightening block 11. The reinforcing plates 14 are used for side support at the connection between the self-tightening block 11 and the anti-slip pad 1.

[0026] It should be noted that the top of the anti-slip pad 1 is welded and fixed to the bottom of the self-tightening block 11, or the two are integrally fixedly connected. The self-tightening block 11 protrudes outward from the middle of the top of the anti-slip pad 1, and the through hole 12 is opened in the middle of the anti-slip pad 1 and the self-tightening block 11. This reduces the wall thickness of the self-tightening block 11. In order to ensure the stability of the through hole 12 structure, this solution fixes multiple reinforcing plates 14 between the top of the anti-slip pad 1 and the outer wall of the self-tightening block 11. By setting multiple reinforcing plates 14, the connection between the anti-slip pad 1 and the self-tightening block 11 is strengthened, thereby ensuring the stable setting of the self-tightening block 11 on the anti-slip pad 1. In this solution, during the use of the anti-slip pad 1, its bottom end needs to be in contact with the connection. In order to prevent the anti-slip pad 1 from rotating after being in contact with the connection, in this solution, multiple inclined grooves 13 are opened at the bottom end of the anti-slip pad 1. The inclined grooves 13 include, but are not limited to, toothed groove structures, so as to form an anti-slip texture at the bottom end of the anti-slip pad 1 and increase the friction between the anti-slip pad 1 and the connection.

[0027] The bottom end of the nut body 2 is provided with a second geometric wedge structure 23, which is adapted to the first geometric wedge structure 15. The protective part is provided on the outer wall of the nut body 2 and is used for compression buffering when the nut body 2 is screwed.

[0028] It should be noted that, through the structural design of the second geometric wedge structure 23 and the first geometric wedge structure 15, during the entire process of tightening the nut structure and the bolt, the frictional force between the anti-slip washer 1 and the nut body 2 is less than the frictional force between the anti-slip washer 1 and the workpiece. The forward displacement occurs between the wedges until the required preload is reached. The wedge angle of the anti-slip washer 1 is greater than the thread helix angle. When the bolt encounters vibration, due to the difference in frictional force between the two ends of the anti-slip washer 1, the anti-slip washer 1 remains stationary. When the nut body 2 rotates in the opposite direction, the self-tightening force is triggered, ensuring that the structural fit between the second geometric wedge structure 23 and the first geometric wedge structure 15 is not loose. During disassembly, the anti-slip washer 1 and the nut body 2 rotate in the opposite direction simultaneously.

[0029] Specifically, the nut body 2 has multiple connecting grooves on its side wall, the protective part is connected to the connecting groove, the connecting part includes multiple rubber strips 21, the multiple rubber strips 21 are respectively sleeved in the multiple connecting grooves, and the nut body 2 has an internal thread 22 in the middle, the internal thread 22 is used to mate with the thread on the outer wall of the thread.

[0030] It should be noted that the internal thread 22 allows the nut body 2 to engage with the matching bolt structure. The connecting groove is located on the side edge of the nut body 2 and is filled by the rubber strip 21. The connection between the two is fixed by adhesive. When the nut body 2 is tightened, the fingers and the rubber strip 21 twist and squeeze each other. The rubber strip 21 buffers the squeezing force through deformation, thereby reducing the pressure feedback on the fingers and preventing finger injury.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking nut, characterized in that, include: Anti-slip pad (1), the top end of the anti-slip pad (1) is fixedly connected to a self-tightening block (11), the top end of the self-tightening block (11) is surrounded by a first geometric wedge structure (15), and the bottom end of the anti-slip pad (1) is provided with an anti-slip structure. The nut body (2) has a second geometric wedge structure (23) at its bottom end, and the second geometric wedge structure (23) is adapted to the first geometric wedge structure (15). The protective part is disposed on the outer wall of the nut body (2) and is used for compression buffering when the nut body (2) is turned.

2. The anti-loosening nut according to claim 1, characterized in that, The anti-slip pad (1) and the self-tightening block (11) have a through hole (12) in the middle, and the through hole (12) is used for the insertion of the screw.

3. The anti-loosening nut according to claim 1, characterized in that, The anti-slip structure includes inclined grooves (13), and a plurality of the inclined grooves (13) are formed around the bottom end of the anti-slip pad (1).

4. The anti-loosening nut according to claim 1, characterized in that, A plurality of reinforcing plates (14) are fixedly connected around the top of the anti-slip pad (1) and the side of the bottom of the self-tightening block (11). The reinforcing plates (14) are used for side support at the connection between the self-tightening block (11) and the anti-slip pad (1).

5. The anti-loosening nut according to claim 1, characterized in that, The nut body (2) has multiple connecting grooves on its side wall, and the protective part is connected to the connecting groove.

6. The anti-loosening nut according to claim 5, characterized in that, The connecting part includes multiple rubber strips (21), and the multiple rubber strips (21) are respectively sleeved in multiple connecting grooves.

7. The anti-loosening nut according to claim 5, characterized in that, The nut body (2) has an internal thread (22) in the middle, which is used to mate with the thread on the outer wall of the thread.

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