Anti-fracture threaded rod

Abstract

The anti-fracture threaded rod comprises a threaded rod body, a nut is fixedly connected to the top end of the threaded rod body, a cavity is formed in the center of the threaded rod body, and first fixing blocks which are symmetrically arranged are fixedly connected to the middle of the inner wall of the cavity; the device has the advantages that by means of the structural design of the pull rod, the high-pressure spring, the impact block and the fixing blocks, the pull rod is pulled to a certain height and loosened, the high-pressure spring can reset to drive the pull rod to rapidly move towards the bottom end, the impact block is driven to impact the impact block, the impact block is driven to impact the impact block, and the impact block is driven to impact the impact block to impact the impact block. And the pull rod drives the impact block to impact the fixing block arranged in the threaded rod, rust permeated by the penetrating agent is further loosened through impact, the threaded rod is convenient to disassemble, and the situation that the threaded rod is broken due to large fastening force during disassembly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of threaded rods, in particular to an anti-fracture threaded rod. Background Art

[0002] Bolts usually consist of two parts: a nut and a threaded rod. Existing high-strength bolts are often used in open-air environments. Due to the special environment, the bolts often rust. The rusted bolts have a large tightening force and are difficult to disassemble. If they are forcibly disassembled, the threaded rod at the bottom of the nut may easily break, affecting the service life of the bolts.

[0003] In the process of disassembling existing bolts, penetrants are often used to penetrate the threaded holes. These penetrants have the effect of dissolving rust. However, the bolts penetrated by the penetrants are still difficult to disassemble and the threaded rods are broken. Utility Model Content

[0004] The purpose of the utility model is to provide a fracture-resistant threaded rod to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-break threaded rod, comprising a threaded rod, a nut is fixedly connected to the top of the threaded rod, a cavity is opened in the center of the threaded rod, a symmetrically arranged first fixed block is fixedly connected to the middle position of the inner wall of the cavity, a symmetrically arranged second fixed block is fixedly connected to the inner wall of the cavity near the bottom end of the first fixed block, a high-pressure spring is fixedly connected to the bottom end of the cavity, a circular slider is fixedly connected to the top of the high-pressure spring, a pull rod is fixedly connected to the top of the circular slider, a first impact block is fixedly connected to the middle position of the pull rod, a second impact block is fixedly connected to the pull rod near the bottom end of the first impact block, a protective cover is fixedly connected to the top of the pull rod, and a pull ring is fixedly connected to the top of the protective cover.

[0006] Preferably, the first impact block is arranged corresponding to the first fixed block, and the second impact block is arranged corresponding to the second fixed block.

[0007] Preferably, the circular slider is arranged corresponding to the cavity, and the circular slider is slidably connected to the cavity.

[0008] Preferably, the pull rod is designed as a square structure, the pull rod is slidably connected to the first fixed block, and the pull rod is slidably connected to the second fixed block.

[0009] Preferably, the top end of the protective cover is designed as a hexagonal structure, the bottom end of the protective cover is designed as a cylindrical structure, and the protective cover and the nut are arranged correspondingly.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: through the structural design of the pull rod, high-pressure spring, impact block and fixed block, when the pull rod is pulled to a certain height and released, the pull rod can be reset by the high-pressure spring to drive the pull rod to move rapidly to the bottom end, so that the pull rod drives the impact block to impact the fixed block arranged inside the threaded rod. The rust penetrated by the penetrant is further loosened by the impact, which facilitates the disassembly of the threaded rod and avoids the situation where the threaded rod is disassembled and broken due to the large tightening force. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the structural front view of the utility model;

[0012] Figure 2 This is a front cross-sectional view of the structure of the utility model;

[0013] Figure 3 It is a side sectional view of the structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the structural disassembly of the utility model.

[0015] In the figure: 1. threaded rod; 2. nut; 3. cavity; 4. first fixing block; 5. second fixing block; 6. high-pressure spring; 7. circular slider; 8. pull rod; 9. first impact block; 10. second impact block; 11. protective cover; 12. pull ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides a technical solution: an anti-fracture threaded rod, comprising a threaded rod 1, a nut 2 is fixedly connected to the top of the threaded rod 1, a cavity 3 is opened in the center of the threaded rod 1, a symmetrically arranged first fixed block 4 is fixedly connected to the middle position of the inner wall of the cavity 3, a symmetrically arranged second fixed block 5 is fixedly connected to the inner wall of the cavity 3 near the bottom end of the first fixed block 4, a high-pressure spring 6 is fixedly connected to the bottom end of the cavity 3, a circular slider 7 is fixedly connected to the top of the high-pressure spring 6, a pull rod 8 is fixedly connected to the top of the circular slider 7, a first impact block 9 is fixedly connected to the middle position of the pull rod 8, a second impact block 10 is fixedly connected to the pull rod 8 near the bottom end of the first impact block 9, a protective cover 11 is fixedly connected to the top of the pull rod 8, and a pull ring 12 is fixedly connected to the top of the protective cover 11.

[0018] The first impact block 9 is arranged corresponding to the first fixed block 4, and the second impact block 10 is arranged corresponding to the second fixed block 5, so that the first impact block 9 and the second impact block 10 can impact the fixed block. The circular slider 7 is arranged corresponding to the cavity 3, and the circular slider 7 is slidably connected to the cavity 3, so that the circular slider 7 can move vertically in the cavity 3. The pull rod 8 is designed as a square structure, and the pull rod 8 is slidably connected to the first fixed block 4, and the pull rod 8 is slidably connected to the second fixed block 5, so that the pull rod 8 can move vertically. The top end of the protective cover 11 is designed as a hexagonal structure, and the bottom end of the protective cover 11 is designed as a cylindrical structure. The protective cover 11 is arranged corresponding to the nut 2, so as to protect the cavity 3.

[0019] Specifically, when the utility model is used, the pull ring 12 is pulled, and the pull ring 12 drives the protective cover 11 to move upward, and the protective cover 11 drives the pull rod 8 to move, and the moving pull rod 8 drives the first impact block 9 and the second impact block 10 to move upward, and the upward moving pull rod 8 drives the circular slider 7 to stretch the corresponding high-pressure spring 6. When it is stretched to a certain height, the pull ring 12 is released, and the high-pressure spring 6 contracts rapidly. The contracted high-pressure spring 6 drives the pull rod 8 to move downward through the circular slider 7, and the pull rod 8 drives the first impact block 9 and the second impact block 10 to impact the first fixed block 4 and the second fixed block 5 to generate vibration. The vibration force generated inside the threaded rod 1 can have a certain impact effect on the rust and dirt on the periphery of the threaded rod 1, so that the rust penetrated by the penetrant is further loosened, which is convenient for the disassembly of the threaded rod 1 and avoids the situation where the threaded rod 1 is disassembled and broken due to the large tightening force.

[0020] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fracture-resistant threaded rod, characterized in that: The invention comprises a threaded rod (1), the top of which is fixedly connected to a nut (2), a cavity (3) is provided in the center of the threaded rod (1), a symmetrically arranged first fixed block (4) is fixedly connected to the middle position of the inner wall of the cavity (3), a symmetrically arranged second fixed block (5) is fixedly connected to the inner wall of the cavity (3) near the bottom end of the first fixed block (4), a high-pressure spring (6) is fixedly connected to the bottom end of the cavity (3), a circular slider (7) is fixedly connected to the top end of the high-pressure spring (6), a pull rod (8) is fixedly connected to the top end of the circular slider (7), a first impact block (9) is fixedly connected to the middle position of the pull rod (8), a second impact block (10) is fixedly connected to the pull rod (8) near the bottom end of the first impact block (9), a protective cover (11) is fixedly connected to the top end of the pull rod (8), and a pull ring (12) is fixedly connected to the top end of the protective cover (11).

2. The anti-fracture threaded rod according to claim 1, characterized in that: The first impact block (9) is arranged correspondingly to the first fixed block (4), and the second impact block (10) is arranged correspondingly to the second fixed block (5).

3. The anti-fracture threaded rod according to claim 1, characterized in that: The circular slider (7) is arranged corresponding to the cavity (3), and the circular slider (7) is slidably connected to the cavity (3).

4. The anti-fracture threaded rod according to claim 1, characterized in that: The pull rod (8) is designed as a square structure, the pull rod (8) is slidably connected to the first fixed block (4), and the pull rod (8) is slidably connected to the second fixed block (5).

5. The anti-fracture threaded rod according to claim 1, characterized in that: The top end of the protective cover (11) is designed as a hexagonal structure, the bottom end of the protective cover (11) is designed as a cylindrical structure, and the protective cover (11) and the nut (2) are arranged correspondingly.

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