Improved anti-falling bolt

Abstract

The utility model discloses the field of bolt production. The utility model particularly relates to an improved anti-falling bolt. The improved anti-falling bolt comprises a rod body, threads are turned on the outer side of the rod body, and a through cavity is formed in the middle of the rod body. The bolt head and the rod body are integrally formed, and the bolt head is arranged on one side of the rod body; the insertion assembly comprises a fixing rod extending into the penetrating cavity, an installation hole is formed in one end of the fixing rod, positioning holes are formed in the two sides of the installation hole, a positioning pin is arranged on one side of the installation hole and extends into the installation hole, and positioning blocks matched with the positioning holes are arranged on the two sides of the positioning pin. The structure is simplified, and the anti-falling effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, concretely relates to an improved anti-loose bolt. BACKGROUND

[0002] In the field of mechanical connection, bolts are commonly used fasteners, but in a vibrating or impacting environment, bolts are prone to loosening or even falling off, leading to equipment failure or safety accidents.

[0003] In the prior art, the design of anti-loose bolts relies on additional locking devices or complex structures, increasing manufacturing costs and installation difficulty. For example, additional devices such as spring washers and locking nuts not only increase material costs but also increase the complexity of installation and maintenance. In harsh environments, the durability and reliability of bolts are challenged. For example, high temperature, high humidity, corrosive environment, etc. can accelerate the aging and failure of bolts, affecting the long-term stable operation of the equipment. The improved anti-loose bolt simplifies the structure and improves the anti-loose effect through the design of an integrated anti-loose assembly. SUMMARY

[0004] The utility model discloses a kind of improved anti-loose bolts to simplify structure and improve the anti-loose effect for the deficiencies in the above background technology.

[0005] To achieve the above object, the utility model discloses an improved anti-loose bolt, comprising:

[0006] A rod body with threads on its outer side, a cavity is formed in the middle of the rod body;

[0007] A bolt head integrally formed with the rod body, which is arranged on one side of the rod body; And

[0008] An anti-loose assembly, the insertion assembly includes a fixed rod extending into the cavity, one end of the fixed rod is provided with a mounting hole, both sides of the mounting hole are provided with positioning holes, one side of the mounting hole is provided with a positioning pin, the positioning pin extends into the mounting hole, both sides of the positioning pin are provided with positioning blocks matching the positioning holes. The anti-loose assembly is inserted into the cavity, the positioning pin extends into the mounting hole, the positioning blocks are fixed with the positioning holes, the anti-loose assembly is tightly combined with the rod body, the vibration resistance and impact resistance of the bolt are improved, and it is suitable for high-vibration environment.

[0009] The utility model discloses an improved anti-loose bolt further improves that the top of positioning pin is provided with opening.

[0010] The utility model discloses an improved anti-loose bolt further improves that the opening of positioning pin is circular or oval.

[0011] The utility model discloses an improved anti-loose bolt further improves that the positioning hole is a waist-shaped hole.

[0012] A further improvement of this utility model to an improved anti-loosening bolt is that an anti-loosening block is provided at the bottom of the positioning pin.

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

[0014] 1. The integrated anti-loosening component design simplifies the bolt structure and reduces manufacturing costs.

[0015] 2. The anti-loosening component is tightly integrated with the rod body, which improves the bolt's vibration and impact resistance, making it suitable for high-vibration environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] In the figure, rod 1, chamber 11, bolt head 2, fixing rod 3, mounting hole 31, positioning hole 32, positioning pin 4, positioning block 41, opening 43, and anti-detachment block 42. Detailed Implementation

[0018] 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.

[0019] like Figure 1 As shown, an improved anti-loosening bolt includes:

[0020] The rod 1 has threads machined on its outer side, and a through cavity 11 is formed in the middle of the rod;

[0021] A bolt head 2 integrally formed with the rod body, the bolt head being disposed on one side of the rod body; and

[0022] The anti-detachment component includes a fixing rod 3 that extends into the through-cavity. One end of the fixing rod has a mounting hole 31, and both sides of the mounting hole have positioning holes 32. A positioning pin 4 is located on one side of the mounting hole, extending into the mounting hole. Positioning blocks 41 that match the positioning holes are located on both sides of the positioning pin. When the anti-detachment component is inserted into the through-cavity, the positioning pin extends into the mounting hole, and the positioning blocks engage with the positioning holes for fixation. The anti-detachment component is tightly connected to the rod body, improving the bolt's vibration and impact resistance, making it suitable for high-vibration environments.

[0023] Specifically, the top of the locating pin is provided with an opening 43.

[0024] Specifically, the opening of the locating pin is round or oval.

[0025] Specifically, the positioning hole is a waist-shaped hole.

[0026] Specifically, the bottom of the positioning pin is provided with an anti-falling block 42.

[0027] It is apparent for a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalence of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An improved captive bolt, characterized by, The utility model relates to a threaded rod, which comprises: a threaded rod body having a cavity formed in the middle part thereof; a bolt head integrally formed with the rod body and arranged on one side of the rod body; and a anti-disengagement assembly comprising a fixing rod extending into the cavity, one end of the fixing rod being provided with a mounting hole, both sides of the mounting hole being provided with positioning holes, one side of the mounting hole being provided with a positioning pin extending into the mounting hole, both sides of the positioning pin being provided with positioning blocks matching the positioning holes.

2. The improved anti-backout bolt of claim 1, wherein: The top of the positioning pin is provided with an opening.

3. The improved anti-backout bolt of claim 1, wherein: The opening of the positioning pin is circular or elliptical.

4. The improved anti-backout bolt of claim 1, wherein: The positioning hole is a waist-shaped hole.

5. The improved anti-backout bolt of claim 1, wherein: The bottom of the positioning pin is provided with an anti-disengagement block.

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