High-strength anti-loosening bolt

Abstract

The utility model discloses the field of bolt production. The utility model particularly relates to a high-strength anti-loosening bolt. The high-strength anti-loosening bolt comprises a rod body, threads are formed in the rod body, and a hollow cavity is formed in the middle of the rod body; the bolt head is arranged on one side of the rod body, the bolt head and the rod body are integrally formed, and a groove communicated with the hollow cavity is formed in the bolt head; the insertion assembly is arranged on one side of the bolt head and comprises a fixing rod stretching into the hollow cavity, one end of the fixing rod is connected with a fixing plate, a cross-shaped groove is formed in one face of the fixing plate in a cutting mode, a positioning block is arranged on the outer side of the fixing plate in the circumferential direction, and a rotating groove matched with the positioning block is formed in the groove; and a mounting hole for the positioning block to pass through is formed in the rotating groove. The anti-loosening device is simple in structure, convenient to install, remarkable in anti-loosening effect and suitable for various high-vibration and high-load environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, concretely relates to a high -strength anti -loose bolt. BACKGROUND

[0002] In the field of mechanical engineering, bolts are widely used as connecting pieces in various structures. However, traditional bolts are prone to loosening under long-term vibration or load, leading to connection failure and affecting the safety and stability of the structure. Although there are some designs of anti-loose bolts in the prior art, their structures are complex, inconvenient to install, and have limited anti-loose effect. Therefore, there is an urgent need for a bolt with simple structure, convenient installation and excellent anti-loose performance. SUMMARY

[0003] The utility model aims at the deficiency existing in the above background art, provides a high -strength anti -loose bolt with simple structure, convenient installation, remarkable anti -loose effect and applicability to various high -vibration, high -load environment.

[0004] To achieve the above-mentioned purpose, the utility model discloses a high-strength anti-loose bolt, comprising:

[0005] A rod body having a thread formed therein, and a hollow chamber formed in the middle part of the rod body;

[0006] A bolt head provided on one side of the rod body, the bolt head being integrally formed with the rod body, wherein a recess is provided on the bolt head and communicates with the hollow chamber; and

[0007] An insertion assembly provided on one side of the bolt head, the insertion assembly comprising a fixed rod extending into the hollow chamber, one end of the fixed rod being connected to a fixed plate, wherein one side of the fixed plate is cut with a cross-shaped recess, a plurality of positioning blocks are circumferentially arranged on the outer side of the fixed plate, a rotating groove matched with the positioning blocks is arranged in the recess, and a mounting hole is arranged on the rotating groove for the positioning blocks to pass through. By arranging the insertion assembly in the hollow chamber, the anti-loose function of the bolt is realized by the cooperation of the fixed rod and the fixed plate. The cooperation of the positioning blocks and the rotating groove ensures that the bolt is not prone to loosening under vibration or load.

[0008] Further improvement of the utility model discloses a high-strength anti-loose bolt lies in that the number of positioning blocks is two, which are uniformly distributed on the outer side of the fixed plate. The number of positioning blocks can be adjusted to three or more as needed to improve the anti-loose effect.

[0009] Further improvement of the utility model discloses a high-strength anti-loose bolt lies in that the width of the rotating groove is greater than the width of the positioning blocks, so as to ensure smooth rotation of the positioning blocks.

[0010] The further improvement of the high-strength anti-loose bolt lies in that the fixing rod is formed with a weight-reducing hole.

[0011] The further improvement of the high-strength anti-loose bolt lies in that the bottom of the rod body is provided with a plugging block.

[0012] Compared with the prior art, the high-strength anti-loose bolt has the following beneficial effects:

[0013] 1. The insertion assembly is arranged in the hollow chamber, the fixing rod and the fixing plate are matched, the anti-loose function of the bolt is realized, the positioning block and the rotating groove are matched, and the bolt is not prone to loosening under the action of vibration or load.

[0014] 2. The bottom of the rod body is provided with a plugging block.

[0015] 3. The bottom of the rod body is provided with a plugging block. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a high-strength anti-loose bolt structure and a manufacturing method thereof.

[0017] In the drawing, the bolt head 1, the rod body 2, the recess 11, the plugging block 3, the fixing plate 4, the cross-shaped recess 42, the positioning block 41, the rotating groove 12, the mounting hole 13 and the weight-reducing hole 421. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] As shown in the drawing, Figure 1 A high-strength anti-loose bolt comprises:

[0020] The rod body 2 is provided with a thread, and a hollow chamber is formed in the middle of the rod body;

[0021] The bolt head 1 is arranged on one side of the rod body and is integrally formed with the rod body, wherein the bolt head is provided with a recess 11 communicated with the hollow chamber; and

[0022] The insertion assembly is arranged on one side of the bolt head, and the insertion assembly comprises a fixed rod extending into the hollow chamber, one end of the fixed rod is connected with the fixed plate 4, one side of the fixed plate is cut with a cross-shaped groove 42, the outer side of the fixed plate is circumferentially provided with a positioning block 41, the groove is provided with a rotating groove 12 matched with the positioning block, and the rotating groove 12 is provided with a mounting hole 13 through which the positioning block passes. By arranging the insertion assembly in the hollow chamber, the anti-loosening function of the bolt is realized by the cooperation of the fixed rod and the fixed plate. The cooperation design of the positioning block and the rotating groove ensures that the bolt is not easy to loosen under the action of vibration or load.

[0023] Specifically, the number of positioning blocks is two, which are uniformly distributed on the outer side of the fixed plate. The number of positioning blocks can be adjusted to three or more as needed to improve the anti-loosening effect.

[0024] Specifically, the width of the rotating groove is greater than the width of the positioning block, so as to ensure that the positioning block can rotate smoothly.

[0025] Specifically, the fixed rod is formed with a weight-reducing hole 421. By forming the weight-reducing hole on the fixed rod, the overall weight of the bolt is reduced while maintaining its strength and anti-loosening performance.

[0026] Specifically, the bottom of the rod body is provided with a plugging block. By arranging the plugging block 3 at the bottom of the rod body, foreign matters are prevented from entering the hollow chamber, and the service life and anti-loosening effect of the bolt are improved.

[0027] It is apparent for those 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, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A high-strength loose-tight bolt, characterized by, The utility model relates to a kind of rod body, the hollow chamber is formed in the middle part of the rod body, which is provided with thread on the rod body; The bolt head is integrally formed with the rod body, wherein the bolt head is provided with a recess communicating with the hollow chamber; The insertion assembly includes a fixed rod extending into the hollow chamber, and one end of the fixed rod is connected to a fixed plate, wherein one side of the fixed plate is cut with a cross-shaped recess, the outer side of the fixed plate is circumferentially provided with a positioning block, the recess is provided with a rotating groove matching the positioning block, and the rotating groove is provided with a mounting hole for the positioning block to pass through. The number of positioning blocks is two, and they are evenly distributed on the outer side of the fixed plate.

2. The high-strength loose-tolerance bolt of claim 1, wherein: The width of the rotating groove is greater than the width of the positioning block to ensure smooth rotation of the positioning block.

3. The high-strength, loose-tolerance bolt of claim 1, wherein: The fixed rod is provided with a weight-reducing hole.

4. The high-strength, loose-tolerance bolt of claim 1, wherein: The bottom of the rod body is provided with a sealing block.

5. The high-strength, loose-tolerance bolt of claim 1, wherein: ​

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