Anti-loosening screw rod for connecting high-strength steel beam

Abstract

The utility model relates to the technical field of screws, and discloses an anti-loosening screw for high-strength steel beam connection, which comprises a screw body, the bottom of the screw body is fixedly connected with a dovetail, the outside of the screw body is in threaded connection with a self-locking nut, the outside of the screw body is in threaded connection with a first flat gasket, and the first flat gasket is in threaded connection with a second flat gasket. The outer portion of the screw body is in threaded connection with a hexagon nut, a second flat gasket, an integrated nut, a plastic ring and a bowl-shaped waterproof gasket. The outer portion of the screw body is in threaded connection with the hexagon nut, the second flat gasket, the integrated nut, the plastic ring and the bowl-shaped waterproof gasket. According to the anti-loosening screw, high fastening force and an anti-loosening effect are provided, stable connection is ensured, vibration resistance is achieved, the service life is prolonged, the sealing performance, the vibration resistance and the water resistance of connection are enhanced, meanwhile, a good fastening effect and surface protection are provided, the radial stress area of the screw body and the nut is increased, and the anti-loosening effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, and in particular to a high-strength steel beam connection anti-loosening screw body. Background Technology

[0002] High-strength steel beam connection anti-loosening bolts are fasteners used at steel beam connections to prevent bolts from loosening. In steel structures, the connection between beams and columns is usually fastened with bolts. These connections are subject to various external forces, so anti-loosening design is very important to ensure connection safety. Made of high-strength steel, they have high tensile strength and fatigue resistance, ensuring that the connection remains stable even under heavy loads and long-term use.

[0003] In existing technologies, some connecting devices use standard screws and nuts for fixing, which commonly suffer from loosening. Although these provide basic connection strength, the nuts at the connection points are prone to loosening during long-term use due to factors such as vibration, temperature changes, and material fatigue. This not only affects the stability of the connection but also poses a safety hazard to the structure. Therefore, a high-strength steel beam connection anti-loosening screw is proposed to solve the above problems. Utility Model Content

[0004] This utility model proposes an anti-loosening screw for high-strength steel beam connection, which aims to improve the problem of screws becoming loose during use in some existing devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-strength steel beam connection anti-loosening bolt includes a bolt body, a dovetail fixedly connected to the bottom of the bolt body, a self-locking nut connected to the external thread of the bolt body, a flat washer I connected to the external thread of the bolt body, a hexagonal nut connected to the external thread of the bolt body, a flat washer II connected to the external thread of the bolt body, an integrated nut connected to the external thread of the bolt body, a plastic ring connected to the external thread of the bolt body, a bowl-shaped waterproof gasket connected to the external thread of the bolt body, and an anti-loosening nut connected to the external thread of the bolt body. The anti-loosening nut has two slots inside, and a reinforcing bolt is threaded into the slot.

[0007] As a further description of the above technical solution:

[0008] The screw body has a wear-resistant layer for fixed connection, and the screw body has a reinforcement layer for external fixed connection.

[0009] As a further description of the above technical solution:

[0010] The bottom of the self-locking nut is rotatably connected to the top of the flat washer, and the bottom of the flat washer is rotatably connected to the top of the hexagonal nut.

[0011] As a further description of the above technical solution:

[0012] The bottom of the flat washer 2 is rotatably connected to the top of the integrated nut, the bottom of the integrated nut is rotatably connected to the top of the plastic ring, and the bottom of the plastic ring is rotatably connected to the top of the bowl-shaped waterproof pad.

[0013] This utility model has the following beneficial effects:

[0014] In this utility model, the screw body is equipped with a self-locking nut, a hexagonal nut, and a flat washer 1, which can provide high tightening force and anti-loosening effect to ensure stable connection, vibration resistance, and extended service life. The flat washer 2, integrated nut, plastic ring, and cup-shaped waterproof gasket enhance the sealing, vibration resistance, and waterproofness of the connection, while providing good tightening effect and surface protection. An anti-loosening nut is also installed to screw the reinforcing bolt into the slot, increasing the force-bearing area of ​​the screw body and nut, thus achieving the anti-loosening effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of an anti-loosening bolt for high-strength steel beam connection proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the main body of the anti-loosening screw for high-strength steel beam connection proposed in this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the wear-resistant layer of an anti-loosening bolt for high-strength steel beam connection proposed in this utility model.

[0019] Legend:

[0020] 1. Screw body; 2. Dovetail; 3. Self-locking nut; 4. Flat washer one; 5. Hexagonal nut; 6. Flat washer two; 7. Integrated nut; 8. Plastic ring; 9. Bowl-shaped waterproof gasket; 10. Anti-loosening nut; 11. Grooved; 12. Reinforcing bolt; 13. Wear-resistant layer; 14. Reinforcing layer. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1 , Figure 2 , Figure 3 This utility model provides an embodiment of an anti-loosening screw for high-strength steel beam connections, comprising a screw body 1 made of stainless steel, specifically austenitic stainless steel, which possesses excellent corrosion resistance, good machinability, and good high-temperature resistance. A dovetail 2 is fixedly connected to the bottom of the screw body 1. The dovetail 2 is a specific shaped connection structure, typically used to provide a larger contact area and better pull-out resistance. A self-locking nut 3 is externally threaded onto the screw body 1. The self-locking nut 3 is a specially designed nut with an anti-loosening function. Its internal structure is specially treated to maintain a tight state under vibration or impact. A flat washer 4 is externally threaded onto the screw body 1. The flat washer 4 is used to distribute the pressure applied by the nut to the connector, preventing material damage due to excessive local pressure. Its smooth surface ensures that the connector will not be scratched or dented during tightening. A hexagonal nut 5 is externally threaded onto the screw body 1. The hexagonal nut 5 is a standard nut type, facilitating tightening with a wrench. Its hexagonal design allows for easy operation even in confined spaces. The external threaded connection of the screw body 1 includes a flat washer 6, primarily used to further distribute pressure and reduce friction. The flat washer 6 is designed to cooperate with the integrated nut 7, ensuring that the overall connection effect is not affected during tightening. The integrated nut 7 is a nut that integrates multiple functions into one, designed for both ease of connection and stability. Its bottom rotates to connect with the top of the plastic ring 8, ensuring stable support and protection during use.

[0023] The screw body 1 has a plastic ring 8 on its external threaded connection. The plastic ring 8 is used to increase the friction between the nut and the connector, thereby further preventing loosening. The screw body 1 also has a bowl-shaped waterproof gasket 9 on its external threaded connection. The bowl-shaped waterproof gasket 9 is designed in a bowl shape to better collect and guide water flow and prevent moisture from seeping into the connection part. Its material has good waterproof performance and can effectively protect the connector from corrosion in humid environments. The bowl-shaped design also helps to provide a better sealing effect during the connection process. The screw body 1 has an external threaded connection with a lock nut 10, which is used to prevent loosening. The lock nut 10 has two slots 11 inside, which can increase the friction between the lock nut 10 and the screw body 1, ensuring that it remains tight during long-term use. The design of the lock nut 10 allows it to remain stable even in high vibration environments. The lock nut 10 has two slots 11 inside, which are designed to enhance the friction between the lock nut 10 and the screw body 1, preventing loosening due to vibration during use. The internal thread of the slot 11 has a reinforcing bolt 12. The reinforcing bolt 12 is screwed into the slot 11, increasing the radial force-bearing surface of the lock nut 10 and the screw body 1, thus achieving the anti-loosening effect. Its threaded connection with the slot 11 inside the lock nut 10 can provide additional support when under stress, ensuring that the entire connection system will not loosen or fail in high-intensity applications.

[0024] Reference Figure 1 , Figure 4 The screw body 1 is fixedly connected with a wear-resistant layer 13, which is made of tungsten carbide coating. Tungsten carbide is a material with extremely high hardness and excellent wear resistance and abrasion resistance. It can significantly improve the wear resistance of the screw body 1, enabling it to resist friction and wear during long-term use. In addition, the tungsten carbide coating has good high temperature resistance and can maintain stable performance in high temperature environments. The external fixed connection of the screw body 1 is a reinforcing layer 14. The material of the reinforcing layer 14 is an anaerobic adhesive coating. Anaerobic adhesive is a type of thread adhesive. After being applied to the screw body 1, it can be rapidly polymerized and cured at room temperature when the coated surface is isolated from air and under catalysis. After curing, it forms a strong and tough plastic film with the screw body 1, which locks the screw body 1 and prevents it from loosening. It has strong adhesion and sealing properties, which can effectively prevent the screw body 1 from loosening. Moreover, it can be disassembled after curing. The glue overflowing from the joint does not cure and is easy to clean. The bottom of the self-locking nut 3 is rotatably connected to the top of the flat washer 4. The bottom of the flat washer 4 is rotatably connected to the top of the hexagonal nut 5. The bottom of the flat washer 6 is rotatably connected to the top of the integrated nut 7. The bottom of the integrated nut 7 is rotatably connected to the top of the plastic ring 8. The bottom of the plastic ring 8 is rotatably connected to the top of the bowl-shaped waterproof gasket 9.

[0025] Working Principle: First, vertically insert the screw body 1 into the steel beam or other structural component to be connected, ensuring good contact between the dovetail 2 at the bottom of the screw body 1 and the connector. Next, install the following components sequentially on the external threads of the screw body 1: self-locking nut 3, flat washer 4, hexagonal nut 5, flat washer 6, integrated nut 7, plastic ring 8, cup-shaped waterproof gasket 9, and anti-loosening nut 10. The installation sequence and direction of each component should be consistent to ensure smooth connection. During installation, the special design of the self-locking nut 3 allows it to automatically maintain a tight state under vibration or impact. Flat washer 4 and flat washer 6 effectively distribute the pressure applied to the connector, preventing material damage caused by localized overload. The hexagonal nut 5 facilitates tightening with a wrench, while the integrated nut 7 integrates multiple functions, improving the convenience and stability of the connection. The installation of the plastic ring 8 increases the friction between the nut and the connector, further preventing loosening. The cup-shaped waterproof gasket 9, through its unique design, collects and guides water flow, preventing moisture from seeping into the connection area and protecting the connector from corrosion. The anti-loosening nut 10 enhances the friction between itself and the screw body 1 through its internal slot 11, ensuring a tight fit during prolonged use. The tightening of the reinforcing bolt 12 increases the radial force-bearing surface between the anti-loosening nut 10 and the screw body 1, further improving the anti-loosening effect. Throughout the installation process, the wear-resistant layer 13 and the reinforcing layer 14 of the screw body 1 play a crucial role. The tungsten carbide coating of the wear-resistant layer 13 significantly improves the wear resistance of the screw body 1, enabling it to resist friction and wear during long-term use. The anaerobic adhesive coating of the reinforcing layer 14 cures rapidly in the absence of air, forming a strong and tough adhesive film, ensuring that the locking effect of the screw body 1 remains secure.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength steel beam connection anti-loosening bolt, comprising a bolt body (1), characterized in that: The bottom of the screw body (1) is fixedly connected to a dovetail (2), the external thread of the screw body (1) is connected to a self-locking nut (3), the external thread of the screw body (1) is connected to a flat washer one (4), the external thread of the screw body (1) is connected to a hexagonal nut (5), the external thread of the screw body (1) is connected to a flat washer two (6), the external thread of the screw body (1) is connected to an integrated nut (7), the external thread of the screw body (1) is connected to a plastic ring (8), the external thread of the screw body (1) is connected to a bowl-shaped waterproof gasket (9), the external thread of the screw body (1) is connected to an anti-loosening nut (10), the anti-loosening nut (10) has two slots (11) inside, and the internal thread of the slots (11) is connected to a reinforcing bolt (12).

2. The anti-loosening bolt for high-strength steel beam connection according to claim 1, characterized in that: The screw body (1) is fixedly connected with a wear-resistant layer (13), and the screw body (1) is fixedly connected with a reinforcing layer (14).

3. The anti-loosening bolt for high-strength steel beam connection according to claim 1, characterized in that: The bottom of the self-locking nut (3) is rotatably connected to the top of the flat washer (4), and the bottom of the flat washer (4) is rotatably connected to the top of the hexagonal nut (5).

4. The anti-loosening bolt for high-strength steel beam connection according to claim 1, characterized in that: The bottom of the flat washer (6) is rotatably connected to the top of the integrated nut (7), the bottom of the integrated nut (7) is rotatably connected to the top of the plastic ring (8), and the bottom of the plastic ring (8) is rotatably connected to the top of the bowl-shaped waterproof pad (9).

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