High-strength bolt for steel structure

By designing a high-strength bolt including locking structure, washer structure and stud structure, the problems of bolts loose and rust when used outdoors in the steel structure are solved, and better lubrication, anti-slip wire and anti-rust effects are achieved, and the functionality and practicality of the bolts are improved.

CN222596513UActive Publication Date: 2025-03-11JINGJIANG SHENLONG FASTENER MFG CO LTD
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Patent Information

Application Number
CN202323579212.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2025-03-11
Estimated Expiration
2033-12-27

AI Technical Summary

Technical Problem

Steel structures are easily impacted when used outdoors, causing bolts to loosen, and bolts are prone to rust after long-term use, making it difficult to twist and disassemble.

Method used

A high-strength bolt including a locking structure, a washer structure and a stud structure was designed. The locking structure is made of low-carbon alloy steel to ensure that the lubricating oil can be effectively lubricated and prevented from slipping. The washer structure uses a water-expanded rubber ring to prevent water vapor from entering and protecting the bolts from rust.

Benefits of technology

The use of lubricating oil makes the lock nut more convenient to remove, prevent the slippery wire phenomenon, and effectively prevent the bolt from rusting by expanding the rubber ring when exposed to water, improving the functionality and practicality of the bolt.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222596513U_ABST
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Abstract

The utility model relates to the technical field of high-strength bolts, and discloses a high-strength bolt for a steel structure, which comprises a locking structure, a gasket structure and a stud structure, the gasket structure is positioned at the top of the locking structure, and the stud structure is positioned inside the locking structure; the locking structure comprises a first locking nut, a first oil injection hole is formed in the surface of the first locking nut, a first oil outlet hole is formed in the bottom of the first oil injection hole, a second locking nut is arranged away from the bottom of the first locking nut, and a second oil injection hole is formed in the surface of the second locking nut. And a second oil outlet hole is formed in the bottom of the second oil injection hole. Through the arrangement of the first oil injection hole and the second oil injection hole, when the bolt rusts, lubricating oil is added, the lubricating oil flows to the bottoms of the first locking nut and the second locking nut through the first oil outlet hole and the second oil outlet hole for lubrication, and the phenomenon of thread slipping is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of high-strength bolts, in particular to a high-strength bolt for steel structures. Background Art

[0002] Bolts are indispensable in daily life and industrial production and manufacturing. Bolts are also called the rice of industry, which shows that bolts are widely used. In addition, large bolts and nuts are generally used in engineering, construction, bridges and other fields. For example, in the prefabrication and installation of steel structures, a large number of high-strength hexagonal head bolts are used. However, most steel structures are often used outdoors and often produce some impacts, which will cause the bolts installed on the steel structure to loosen, and the existing bolts will rust after long-term use, making it difficult to unscrew the bolts. Therefore, in view of the above situation, it is urgent to develop a high-strength bolt for steel structure with stable connection, good buffering, convenient lubrication, and easy disassembly, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-strength bolt for steel structure.

[0004] The utility model is implemented by the following technical scheme: a high-strength bolt for steel structure, comprising a locking structure, a washer structure and a stud structure, wherein the washer structure is located on the top of the locking structure, and the stud structure is located inside the locking structure;

[0005] The locking structure includes a first locking nut, a first oil filling hole is opened on the surface of the first locking nut, a first oil outlet hole is arranged at the bottom of the first oil filling hole, a second locking nut is arranged away from the bottom of the first locking nut, a second oil filling hole is opened on the surface of the second locking nut, and a second oil outlet hole is arranged at the bottom of the second oil filling hole.

[0006] As a further improvement of the above solution, the first locking nut and the second locking nut are both made of low-carbon alloy steel. The number of the first oil injection holes is two, which are symmetrically distributed with the first locking nut as the center, and the number of the second oil injection holes is two, which are symmetrically distributed with the second locking nut as the center, and the first oil injection holes and the second oil injection holes have the same diameter.

[0007] Through the above technical solution, when the first locking nut and the second locking nut are rusted after long-term use and become difficult to twist, lubricating oil can be added from the first oil filling hole and the second oil filling hole. The lubricating oil flows through the first oil outlet hole and the second oil outlet hole to the bottom of the first locking nut and the second locking nut for lubrication, making the disassembly of the first locking nut and the second locking nut easier and preventing thread slippage.

[0008] As a further improvement of the above scheme, the gasket structure includes a first common gasket, a first water-swellable rubber ring is arranged at the bottom of the first common gasket, a second common gasket is arranged away from the bottom of the first common gasket, and a second water-swellable rubber ring is arranged at the bottom of the second common gasket.

[0009] As a further improvement of the above solution, the first common gasket and the first water-swellable rubber ring have the same diameter, and the second common gasket and the second water-swellable rubber ring have the same diameter.

[0010] Through the above technical solution, the first water-swellable rubber ring and the second water-swellable rubber ring effectively prevent external water vapor from entering the bolt, prevent the overall structure from rusting when exposed to water, play a protective role, and effectively improve the functionality and practicality of the bolt.

[0011] As a further improvement of the above solution, the stud structure includes a steel structure, and the stud body is fixedly connected to the interior of the steel structure.

[0012] As a further improvement of the above solution, the stud body is made of low-carbon alloy steel.

[0013] Through the above technical solution, the stud body is made of low-carbon alloy steel, which improves the corrosion resistance, wear resistance, tensile strength and toughness.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a first locking nut and a second locking nut. When the bolt is used for a long time and rusts, it will be difficult to twist. Lubricating oil can be added from the first oil filling hole and the second oil filling hole. The lubricating oil flows through the first oil outlet hole and the second oil outlet hole to the bottom of the first locking nut and the second locking nut for lubrication, making it easier to disassemble the first locking nut and the second locking nut and preventing thread slippage.

[0016] The utility model effectively prevents external water vapor from entering the bolt and prevents the overall structure from rusting when exposed to water by arranging the first water-swelling rubber ring and the second water-swelling rubber ring, thereby playing a protective role and effectively improving the functionality and practicality of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall planar structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0021] Description of main symbols:

[0022] 1. Locking structure; 101. First locking nut; 102. First oil filling hole; 103. First oil outlet hole; 104. Second locking nut; 105. Second oil filling hole; 106. Second oil outlet hole; 2. Washer structure; 201. First common washer; 202. First water-swellable rubber ring; 203. Second common washer; 204. Second water-swellable rubber ring; 3. Stud structure; 301. Stud structure; 302. Stud body. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Example:

[0025] Please combine Figure 1-4 , a high-strength bolt for steel structure of this embodiment comprises a locking structure 1, a washer structure 2 and a stud structure 3, the washer structure 2 is located on the top of the locking structure 1, and the stud structure 3 is located inside the locking structure 1;

[0026] The locking structure 1 includes a first locking nut 101, a first oil filling hole 102 is opened on the surface of the first locking nut 101, a first oil outlet hole 103 is arranged at the bottom of the first oil filling hole 102, a second locking nut 104 is arranged away from the bottom of the first locking nut 101, a second oil filling hole 105 is opened on the surface of the second locking nut 104, and a second oil outlet hole 106 is arranged at the bottom of the second oil filling hole 105.

[0027] The first locking nut 101 and the second locking nut 104 are both made of low-carbon alloy steel. There are two first oil holes 102, which are symmetrically distributed with the first locking nut 101 as the center. There are two second oil holes 105, which are symmetrically distributed with the second locking nut 104 as the center. The first oil hole 102 and the second oil hole 105 have the same diameter. When the first locking nut 101 and the second locking nut 104 are rusted after long-term use, they will be difficult to turn. Lubricating oil can be added from the first oil hole 102 and the second oil hole 105. The lubricating oil flows to the bottom of the first locking nut 101 and the second locking nut 104 through the first oil outlet hole 103 and the second oil outlet hole 106 for lubrication, making it easier to disassemble the first locking nut 101 and the second locking nut 104 and preventing thread slippage.

[0028] The washer structure 2 includes a first common washer 201, a first water-swellable rubber ring 202 is arranged at the bottom of the first common washer 201, a second common washer 203 is arranged away from the bottom of the first common washer 201, and a second water-swellable rubber ring 204 is arranged at the bottom of the second common washer 203. The first common washer 201 and the first water-swellable rubber ring 202 have the same diameter, and the second common washer 203 and the second water-swellable rubber ring 204 have the same diameter. The first water-swellable rubber ring 202 and the second water-swellable rubber ring 204 effectively prevent external water vapor from entering the bolt, prevent the overall structure from rusting when exposed to water, play a protective role, and effectively improve the functionality and practicality of the bolt.

[0029] The stud structure 3 comprises a steel structure 301, and a stud body 302 is fixedly connected inside the steel structure 301. The stud body 302 is made of low-carbon alloy steel, which improves corrosion resistance, wear resistance, tensile strength and toughness.

[0030] The implementation principle of a high-strength bolt for steel structure in the embodiment of the present application is as follows: when installing and using, the stud body 302 is screwed onto the steel structure 301 so that the stud body 302 fits the workpiece. The first locking nut and the second locking nut are firmly fixed to the steel structure 301 and locked to each other. When the first locking nut 101 and the second locking nut 104 are rusted after long-term use, they will be difficult to screw. Lubricating oil can be added from the first oil filling hole 102 and the second oil filling hole 105. The lubricating oil flows to the bottom of the first locking nut 101 and the second locking nut 104 through the first oil outlet hole 103 and the second oil outlet hole 106 for lubrication, making the disassembly of the first locking nut 101 and the second locking nut 104 more convenient and preventing the occurrence of thread slippage. The first water-expandable rubber ring 202 and the second water-expandable rubber ring 204 effectively prevent external water vapor from entering the bolt, and prevent the overall structure from rusting when exposed to water, which plays a protective role and effectively improves the functionality and practicality of the bolt.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A high-strength bolt for steel structure, characterized in that: It comprises a locking structure (1), a washer structure (2) and a stud structure (3), wherein the washer structure (2) is located on the top of the locking structure (1), and the stud structure (3) is located inside the locking structure (1); The locking structure (1) comprises a first locking nut (101), a first oil filling hole (102) is provided on the surface of the first locking nut (101), a first oil outlet hole (103) is provided at the bottom of the first oil filling hole (102), a second locking nut (104) is provided away from the bottom of the first locking nut (101), a second oil filling hole (105) is provided on the surface of the second locking nut (104), and a second oil outlet hole (106) is provided at the bottom of the second oil filling hole (105).

2. A high-strength bolt for steel structure according to claim 1, characterized in that: The first locking nut (101) and the second locking nut (104) are both made of low-carbon alloy steel. The first oil injection holes (102) are provided in two numbers and are symmetrically distributed with the first locking nut (101) as the center. The second oil injection holes (105) are provided in two numbers and are symmetrically distributed with the second locking nut (104) as the center. The first oil injection holes (102) and the second oil injection holes (105) have the same diameter.

3. A high-strength bolt for steel structure according to claim 1, characterized in that: The gasket structure (2) comprises a first common gasket (201), a first water-swellable rubber ring (202) being arranged at the bottom of the first common gasket (201), a second common gasket (203) being arranged away from the bottom of the first common gasket (201), and a second water-swellable rubber ring (204) being arranged at the bottom of the second common gasket (203).

4. A high-strength bolt for steel structure according to claim 3, characterized in that: The first common gasket (201) and the first water-swellable rubber ring (202) have the same diameter, and the second common gasket (203) and the second water-swellable rubber ring (204) have the same diameter.

5. A high-strength bolt for steel structure according to claim 1, characterized in that: The stud structure (3) comprises a steel structure (301), and a stud body (302) is fixedly connected inside the steel structure (301).

6. A high-strength bolt for steel structure according to claim 5, characterized in that: The stud body (302) is made of low-carbon alloy steel.