A mechanical fastener to prevent loosening

Abstract

The utility model discloses a mechanical fastener for preventing loosening, and relates to the technical field of mechanical fasteners, and comprises: a workpiece, a fastening assembly installed on the workpiece, an anti-loosening assembly being arranged on the fastening assembly, the fastening assembly comprising a fastening bolt and a fastening nut, the fastening bolt being threadedly connected with the fastening nut, a through hole being arranged on the fastening bolt, the anti-loosening assembly comprising an anti-loosening frame, a screw being fixedly connected to the upper part of the anti-loosening frame, the screw being able to pass through the through hole, an anti-loosening nut being threadedly connected to the screw, an elastic sheet being fixedly connected to the anti-loosening nut, and a protruding column being fixedly connected to the head of the fastening bolt. By means of the anti-loosening assembly, the fastening assembly after connection can be restricted and fixed, and loosening of the fastening bolt and the fastening nut is avoided, and a good anti-loosening effect is achieved, and a good fastening effect is ensured, and the firmness of the connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical fasteners, in particular to a mechanical fastener capable of preventing loosening. Background Art

[0002] Mechanical fasteners are a type of part used to fasten two or more components together.

[0003] In the prior art, mechanical fasteners include bolts and nuts. However, after the bolts and nuts are connected, the nuts and bolts are easily loosened due to vibration, thereby affecting the fastening effect and being not firm enough to use. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a mechanical fastener that prevents loosening. By setting an anti-loosening component, the fastening component after connection can be restricted and fixed to avoid loosening of the fastening bolts and fastening nuts. It has a good anti-loosening effect, ensures a good fastening effect, and improves the firmness of the connection.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a mechanical fastener for preventing loosening, comprising a workpiece, a fastening assembly installed on the workpiece, an anti-loosening assembly being arranged on the fastening assembly, the fastening assembly comprising a fastening bolt and a fastening nut, the fastening bolt being threadedly connected to the fastening nut, a through hole being arranged on the fastening bolt, the anti-loosening assembly comprising an anti-loosening frame, a screw being fixedly connected to the upper part of the anti-loosening frame, the screw being able to pass through the through hole, an anti-loosening nut being threadedly connected to the screw, an elastic sheet being fixedly connected to the anti-loosening nut, a boss being fixedly connected to the head of the fastening bolt, and a small hole being arranged on the elastic sheet that matches the boss. By setting up the anti-loosening assembly, the fastening assembly after connection can be restricted and fixed, and the loosening of the fastening bolt and the fastening nut can be avoided, and a good anti-loosening effect can be achieved, thereby ensuring a good fastening effect and improving the firmness of the connection.

[0006] According to the mechanical fastener for preventing loosening, the longitudinal section of the anti-loosening frame is U-shaped.

[0007] According to the mechanical fastener for preventing loosening, there are two elastic sheets, which are axially symmetrically arranged.

[0008] According to the mechanical fastener for preventing loosening, there are two protruding columns, which are axially symmetrically arranged.

[0009] According to the mechanical fastener for preventing loosening, the anti-loosening nut is smaller than the fastening nut.

[0010] According to the mechanical fastener for preventing loosening, the anti-loosening nut is located above the fastening bolt.

[0011] According to the mechanical fastener for preventing loosening, the boss is made of metal material.

[0012] According to the mechanical fastener for preventing loosening, the fastening nut and the anti-loosening frame are engaged with each other.

[0013] Beneficial Effects

[0014] Compared with the prior art, the utility model can limit and fix the fastening components after connection through the anti-loosening component, avoid the loosening of the fastening bolts and the fastening nuts, has a good anti-loosening effect, ensures a good fastening effect, and improves the firmness of the connection.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the structure of a mechanical fastener for preventing loosening according to the utility model;

[0018] Figure 2 An exploded view of a mechanical fastener for preventing loosening according to the utility model;

[0019] Figure 3 It is an enlarged view of the A part of the mechanical fastener for preventing loosening of the utility model;

[0020] Figure 4 The utility model is a structural schematic diagram of a locking nut and an elastic sheet of a mechanical fastener for preventing loosening.

[0021] Legend:

[0022] 1. Workpiece; 2. Fastening assembly; 3. Anti-loosening assembly; 201. Fastening bolt; 202. Fastening nut; 301. Anti-loosening frame; 302. Screw; 303. Through hole; 304. Anti-loosening nut; 3041. Elastic sheet; 2011. Boss. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 The utility model embodiment provides a mechanical fastener to prevent loosening, which includes a workpiece 1, a fastening assembly 2 installed on the workpiece 1, and an anti-loosening assembly 3 is arranged on the fastening assembly 2. The fastening assembly 2 includes a fastening bolt 201 and a fastening nut 202. The fastening nut 202 and an anti-loosening frame 301 are mutually engaged, and the fastening bolt 201 is threadedly connected with the fastening nut 202. A through hole 303 is arranged on the fastening bolt 201. The anti-loosening assembly 3 includes an anti-loosening frame 301. The shape of the longitudinal section of the anti-loosening frame 301 is U-shaped. A screw rod 302 is fixedly connected to the upper part of the anti-loosening frame 301. The screw rod 302 can pass through the through hole 303. An anti-loosening nut 304 is threadedly connected to the screw 302. The anti-loosening nut 304 is smaller than the fastening nut 202. The anti-loosening nut 304 is located above the fastening bolt 201. It is connected with an elastic sheet 3041, there are two elastic sheets 3041, and they are axially symmetrically arranged. The head of the fastening bolt 201 is fixedly connected with a boss 2011, and the boss 2011 is made of metal material. There are two bosses 2011, and they are axially symmetrically arranged. The elastic sheet 3041 is provided with a small hole adapted to the boss 2011. When in use, the fastening bolt 201 is passed through the workpiece 1, the fastening nut 202 is installed on the fastening bolt 201, and then the anti-loosening frame 301 is clamped on the fastening nut 202, the screw rod 302 passes through the through hole 303, and then the anti-loosening nut 304 is installed on the screw rod 302, so that the anti-loosening frame 301 is tightly clamped on the fastening nut 202, and then the elastic sheet 3041 is bent, and then the boss 2011 clamps the elastic sheet 3041, so that the whole has a good anti-loosening effect. By setting the anti-loosening component 3, the fastening component 2 after connection can be restricted and fixed to prevent the fastening bolts 201 and the fastening nuts 202 from loosening, which has a good anti-loosening effect, ensures a good fastening effect, and improves the firmness of the connection.

[0025] Working principle: When in use, pass the fastening bolt 201 through the workpiece 1, install the fastening nut 202 on the fastening bolt 201, then clamp the anti-loosening frame 301 on the fastening nut 202, the screw rod 302 passes through the through hole 303, and then install the anti-loosening nut 304 on the screw rod 302, so that the anti-loosening frame 301 is tightly clamped on the fastening nut 202, then bend the elastic sheet 3041, and then make the boss 2011 clamp the elastic sheet 3041, so that the whole has a good anti-loosening effect.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A mechanical fastener for preventing loosening, comprising a workpiece (1), a fastening assembly (2) mounted on the workpiece (1), characterized in that: The fastening assembly (2) is provided with an anti-loosening assembly (3), the fastening assembly (2) comprising a fastening bolt (201) and a fastening nut (202), the fastening bolt (201) being threadedly connected to the fastening nut (202), the fastening bolt (201) being provided with a through hole (303), the anti-loosening assembly (3) comprising an anti-loosening frame (301), the upper part of the anti-loosening frame (301) being fixedly connected with a screw rod (302), the screw rod (302) being able to pass through the through hole (303), the screw rod (302) being threadedly connected with an anti-loosening nut (304), the anti-loosening nut (304) being fixedly connected with an elastic sheet (3041), the head of the fastening bolt (201) being fixedly connected with a boss (2011), the elastic sheet (3041) being provided with a small hole adapted to the boss (2011).

2. A mechanical fastener for preventing loosening according to claim 1, characterized in that: The longitudinal section of the anti-loosening frame (301) is in a U shape.

3. A mechanical fastener for preventing loosening according to claim 1, characterized in that: There are two elastic sheets (3041), which are arranged axially symmetrically.

4. A mechanical fastener for preventing loosening according to claim 1, characterized in that: There are two protruding columns (2011), which are arranged axially symmetrically.

5. A mechanical fastener for preventing loosening according to claim 1, characterized in that: The anti-loosening nut (304) is smaller than the fastening nut (202).

6. A mechanical fastener for preventing loosening according to claim 1, characterized in that: The anti-loosening nut (304) is located above the fastening bolt (201).

7. A mechanical fastener for preventing loosening according to claim 1, characterized in that: The convex column (2011) is made of metal material.

8. A mechanical fastener for preventing loosening according to claim 1, characterized in that: The fastening nut (202) and the anti-loosening frame (301) are engaged with each other.

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