Anti-loosening fastener

Abstract

The utility model discloses an anti-loosing fastener in the field of fasteners, which comprises a connecting buckle and a buckling pressure head, the buckling pressure head is arranged on the periphery of the connecting buckle, two end parts of the connecting buckle penetrate through the buckling pressure head and then are provided with locking nuts, and an annular groove is arranged above the locking nuts. When the locking nut is used for pressing the buckling pressure head, the pressing piece between the buckling pressure head and the connecting buckle is pressed, then the locking clamp on the buckling pressure head encircles the locking taper head, acting force towards the axis can be generated on the locking taper head under the matching of the taper, and due to the fact that the opening groove is formed in the locking taper head, the locking taper head can be locked through the locking clamp. The locking taper head can be tightened towards the center, the threads are locked, it can be ensured that a pressing piece is pressed, meanwhile, the locking nut is locked to the connecting external threads through counter-acting force, the anti-loosening purpose is achieved, the structure is simple, locking operation is not different from existing threaded connection, operation is easy and convenient, and the practical effect is good.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, specifically an anti-loosening fastener. Background Technology

[0002] Fasteners are a general term for mechanical parts used to fasten two or more parts (or components) together to form a single unit, and they are widely used. Bolts and nuts are common examples of fasteners.

[0003] While some anti-loosening fastener solutions exist in the prior art, many suffer from complex structures and cumbersome locking operations, differing significantly from conventional threaded connections. This increases the difficulty of installation and maintenance, making it difficult to achieve reliable anti-loosening in various working conditions conveniently and efficiently, and failing to meet the convenience and stability requirements of actual production and use. Therefore, those skilled in the art have provided an anti-loosening fastener to solve the problems mentioned in the background art. Summary of the Invention

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

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

[0006] An anti-loosening fastener includes a connecting buckle and a locking head. The locking head is disposed around the connecting buckle, and locking nuts are disposed at both ends of the connecting buckle after passing through the locking head. An annular groove is formed above the locking nut, and a locking taper head is integrally formed on the locking nut at the annular groove. Multiple opening grooves are evenly formed on the locking taper head along the circumferential direction. A locking retaining ring that mates with the locking taper head is integrally formed at the bottom of the locking head.

[0007] As a further embodiment of this utility model: the locking ring is an inner tapered ring structure, and the locking tapered head is an outer tapered ring structure.

[0008] As a further embodiment of this utility model: the connecting buckle has a U-shaped structure, and the connecting buckle at the locking nut has an external thread that engages with the locking nut thread.

[0009] As a further embodiment of this utility model: the top of the fastening pressure head is provided with a fastening arc groove, and the fastening pressure head is provided with a through hole for the connecting buckle to pass through located around the connecting buckle.

[0010] As a further embodiment of this utility model: the connecting buckle, the locking nut, and the outer periphery of the buckling head are all plated with 0.2-0.3mm of zinc.

[0011] As a further solution of this utility model: in order to ensure the fit between the fastener and the connecting parts, a layer of rubber is glued onto the interlocking arc groove.

[0012] As a further embodiment of this utility model, both the connecting buckle and the buckling head are made of spring steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention allows for the tightening of the clamping head and the connecting buckle by pressing the clamping head with a locking nut. Then, the locking ring on the clamping head grips the locking tapered head. The tapered action generates a force towards the axis of the locking tapered head. Because the locking tapered head has an opening groove, it tightens towards the center, locking the threads tightly. This ensures that while the clamping element is being pressed, the reaction force locks the locking nut onto the connecting external thread, preventing loosening. The structure is simple, the locking operation is no different from existing threaded connections, and the operation is simple, convenient, and effective. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a structural diagram of the snap-fit ​​pressure head in this utility model;

[0018] Figure 4 This is a structural diagram of the locking nut in this utility model;

[0019] Figure 5 This utility model Figure 2 A magnified view of a portion of point A in the middle.

[0020] In the diagram: 1. Connecting buckle; 101. Connecting external thread; 2. Engaging pressure head; 201. Engaging arc groove; 202. Through hole; 203. Locking retaining ring; 3. Locking nut; 301. Annular groove; 302. Locking tapered head; 303. Opening groove. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 In this embodiment of the present invention, an anti-loosening fastener includes a connecting buckle 1 and a fastening head 2. The fastening head 2 is disposed around the connecting buckle 1, and the two ends of the connecting buckle 1 pass through the fastening head 2 and are provided with locking nuts 3. An annular groove 301 is provided above the locking nut 3. A locking taper head 302 is integrally formed on the locking nut 3 at the annular groove 301. Multiple opening grooves 303 are evenly formed on the locking taper head 302 along the circumferential direction. A locking retaining ring 203 that cooperates with the locking taper head 302 is integrally formed at the bottom of the fastening head 2.

[0023] Among them, the locking ring 203 is an inner tapered ring structure, and the locking tapered head 302 is an outer tapered ring structure.

[0024] By adopting the above technical solution, when the locking nut 3 presses the locking head 2, the clamping member between the locking head 2 and the connecting buckle 1 is pressed together. Then, the locking ring 203 on the locking head 2 clamps the locking tapered head 302. Under the cooperation of the tapered joint, a force towards the axis is generated on the locking tapered head 302. Since the locking tapered head 302 has an opening groove 303, it can tighten towards the center and lock the thread. This ensures that while the clamping member is pressed, the reaction force locks the locking nut 3 onto the connecting external thread 101, achieving the purpose of preventing loosening. The structure is simple, the locking operation is no different from the existing threaded connection, the operation is simple and convenient, and the practical effect is good.

[0025] The connecting buckle 1 has a U-shaped structure, and the connecting buckle 1 has an external thread 101 that is threaded to the locking nut 3 at the locking nut 3. The locking parts that need to be connected can be quickly locked and connected by the connecting buckle 1 and the locking head 2.

[0026] The fastening head 2 has a fastening arc groove 201 on its top and a through hole 202 on its outer periphery for the connecting buckle 1 to pass through.

[0027] In this embodiment, the outer periphery of the connecting buckle 1, the locking nut 3, and the snap-fit ​​head 2 is plated with 0.2-0.3mm of zinc, and the connecting buckle 1 and the snap-fit ​​head 2 are both made of spring steel.

[0028] In this embodiment, in order to ensure the fit between the fastener and the connecting parts, a layer of rubber is glued onto the snap-fit ​​arc groove 201.

[0029] The working principle of this utility model is as follows: In use, the connecting buckle 1 is snapped onto the circular part to be connected, and then another circular part to be connected is placed inside the connection port. The snap-fit ​​head 2 is passed through the through hole 202 onto the connecting buckle 1, and the snap-fit ​​head 2 is pressed tightly by the locking nut 3. When the snap-fit ​​head 2 is pressed by the locking nut 3, the clamping parts between the snap-fit ​​head 2 and the connecting buckle 1 are pressed together. Then, the locking ring 203 on the snap-fit ​​head 2 clamps the locking tapered head 30. 2. With the cooperation of the taper, a force towards the axis will be generated on the locking taper head 302. Since the locking taper head 302 has an opening groove 303, it can tighten towards the center and lock the thread. This ensures that while pressing the clamping part, the reaction force locks the locking nut 3 onto the connecting external thread 101, achieving the purpose of preventing loosening. The structure is simple, the locking operation is no different from the existing threaded connection, the operation is simple and convenient, and the practical effect is good.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fastener for preventing loosening, comprising a connecting buckle (1) and a snap-fit ​​head (2), characterized in that: The fastening head (2) is located around the connecting buckle (1), and the two ends of the connecting buckle (1) pass through the fastening head (2) and are provided with locking nuts (3). An annular groove (301) is provided above the locking nut (3). A locking taper head (302) is integrally formed on the locking nut (3) at the annular groove (301). Multiple opening grooves (303) are evenly formed on the locking taper head (302) along the circumferential direction. A locking ring (203) that cooperates with the locking taper head (302) is integrally formed at the bottom of the fastening head (2).

2. The anti-loosening fastener according to claim 1, characterized in that: The locking ring (203) is an inner tapered ring structure, and the locking tapered head (302) is an outer tapered ring structure.

3. The anti-loosening fastener according to claim 1, characterized in that: The connecting buckle (1) has a U-shaped structure, and the connecting buckle (1) has an external thread (101) that is threaded to the locking nut (3) at the location of the locking nut (3).

4. The anti-loosening fastener according to claim 1, characterized in that: The top of the fastening head (2) is provided with a fastening arc groove (201), and the fastening head (2) is provided with a through hole (202) for the connecting buckle (1) to pass through on the periphery of the connecting buckle (1).

5. The anti-loosening fastener according to claim 1, characterized in that: The outer periphery of the connecting buckle (1), the locking nut (3) and the snap-fit ​​head (2) are all plated with 0.2-0.3mm of zinc.

6. The anti-loosening fastener according to claim 1, characterized in that: Both the connecting buckle (1) and the fastening head (2) are made of spring steel.

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