A new type of bolt for preventing loosening and leakage in tank walls

Abstract

This utility model provides a novel anti-loosening and leak-proof bolt for tank walls, relating to the field of bolt technology. It includes a bolt cap structure with a bolt rod structure on it. A nut is threaded onto the bolt rod structure. An anti-slip element one is provided on the side of the bolt cap structure near the nut, and an anti-slip element two is provided on the side of the nut near the bolt cap structure. This utility model enhances the interlocking force and friction through the designed anti-slip elements one and two, thereby reducing vibration transmission and displacement risks. Combined with the elastic deformation characteristics of the V-shaped element, it precisely controls the deformation range, ensuring high sealing and reliability at the tank wall connection. It is suitable for harsh environments, reduces maintenance requirements, and efficiently achieves bidirectional locking in a single-person operation environment.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to a novel bolt for preventing loosening and leakage in tank walls. Background Technology

[0002] In modern engineering construction, large modular tanks, as equipment for storing and processing important substances, are widely used in petrochemical, food processing, and environmental protection fields, playing a particularly important role in organic waste treatment and anaerobic fermentation. The connection and fastening of the tank walls requires a large number of bolts. These bolts are not only numerous, but the installation quality requirements for each bolt are extremely stringent. Any minor error can lead to problems such as poor sealing, accelerated corrosion, or loose bolts, seriously affecting the service life and safety of the storage tank.

[0003] Traditional bolted connections typically rely on two workers to work together to tighten the bolts. One worker installs the bolts while the other tightens them from the other side, forming a "dual-work" operation mode. This not only greatly increases labor costs, but also, due to the lack of precise torque control, the preload of the bolts cannot be accurately controlled during the operation, which can easily lead to problems such as thread seizing, loosening, or poor sealing, affecting the safety and long-term performance of the storage tank. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a novel anti-loosening and leak-proof bolt for tank walls. By designing anti-slip components one and two, the bolt enhances the interlocking force and friction, thereby reducing vibration transmission and displacement risks. Combined with the elastic deformation characteristics of the V-shaped component, the bolt precisely controls the deformation range, ensuring high sealing and reliability at the tank wall connection. It is suitable for harsh environments, reduces maintenance requirements, and efficiently achieves bidirectional locking in a single-person operation environment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel anti-loosening and leak-proof bolt for tank walls, comprising a bolt cap structure, a bolt rod structure provided on the bolt cap structure, a nut threadedly connected to the bolt rod structure, an anti-slip component one provided on the side of the bolt cap structure near the nut, and an anti-slip component two provided on the side of the nut near the bolt cap structure;

[0006] The nut structure includes a nut body with a fitting groove, and the nut rod structure includes a nut rod body disposed on one side of the nut body where the fitting groove is located. The nut rod body has an internal thread groove, and the nut rod body has a side sliding groove that communicates with the internal thread groove. V-shaped parts are provided in the internal thread groove and the side sliding groove. An internal bolt is internally threaded into the internal thread groove.

[0007] In a preferred embodiment, the anti-slip component one and the anti-slip component two have the same structure. The anti-slip component one includes a connecting ring with an anti-slip protrusion, and the included angle between the anti-slip protrusion and the diameter line of the connecting ring is an acute angle.

[0008] In a preferred embodiment, the nut is provided with a groove that is the same as the fitting groove.

[0009] In a preferred embodiment, both the connecting ring and the anti-slip protrusion are fitted into the fitting groove, and the anti-slip protrusion protrudes out of the fitting groove.

[0010] In a preferred embodiment, the distance between the two ends of the V-shaped member when it is not under stress is greater than the diameter of the bolt body.

[0011] In a preferred embodiment, the thickness of the side groove is less than the diameter of the internal thread groove.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention improves the anti-loosening and anti-leakage performance. Anti-slip component one and anti-slip component two reduce the risk of vibration transmission and displacement by enhancing the interlocking force and friction. Combined with the elastic deformation characteristics of the V-shaped component, the deformation range is precisely controlled to ensure high sealing and reliability at the tank wall connection. It is suitable for harsh environments, reduces maintenance requirements, and can efficiently achieve bidirectional locking in a single-person operation environment. Attached Figure Description

[0014] Figure 1 A schematic diagram of a novel anti-loosening and leak-proof bolt for tank walls provided by this utility model.

[0015] Figure 2 This utility model provides a schematic diagram of the installation position of the anti-slip component of a novel anti-loosening and leak-proof bolt for tank walls.

[0016] Figure 3 This is a half-sectional schematic diagram of the bolt rod structure of a novel anti-loosening and leak-proof bolt for tank walls provided by this utility model.

[0017] Figure 4 This utility model provides a schematic diagram of the anti-slip component structure of a novel bolt for preventing loosening and leakage in tank walls.

[0018] Legend:

[0019] 1. Bolt cap structure; 2. Bolt rod structure; 3. Nut; 4. Anti-slip component one; 5. Anti-slip component two;

[0020] 11. Bolt cap body; 12. Fitting groove;

[0021] 21. Bolt body; 22. Internal threaded groove; 23. Internal bolt; 24. Side sliding groove; 25. V-shaped component;

[0022] 41. Connecting ring; 42. Anti-slip raised edge. Detailed Implementation

[0023] 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. Example

[0024] like Figures 1 to 4 As shown, a novel anti-loosening and leak-proof bolt for tank walls includes a bolt cap structure 1, which is fixed to the inner side of the tank wall. The bolt cap structure 1 is provided with a bolt rod structure 2, and a nut 3 is threaded onto the bolt rod structure 2. The bolt cap structure 1 is provided with an anti-slip component 4 on the side near the nut 3, and the nut 3 is provided with an anti-slip component 5 on the side near the bolt cap structure 1.

[0025] In the above description, the anti-slip component 4 and anti-slip component 5 are designed to be located at both ends of the bolt, so that when the bolt is installed and tightened, the anti-slip component 4 and anti-slip component 5 can directly press against the surface of the tank wall. By increasing the friction at the contact point and generating a biting effect, they effectively resist the relative displacement caused by vibration or external force, thereby preventing the bolt from loosening. This design reduces the overall loosening risk of this utility model by increasing the friction at the contact point, thereby reducing the leakage risk at the tank wall connection, improving the sealing performance and overall connection reliability, and reducing maintenance requirements. It is suitable for tank applications in harsh environments.

[0026] The nut structure 1 includes a nut body 11 with a fitting groove 12, and a nut 3 with a groove identical to the fitting groove 12. The anti-slip component 1 4 and the anti-slip component 2 5 have the same structure. The anti-slip component 1 4 includes a connecting ring 41 with an anti-slip protrusion 42. The included angle between the diameter line of the anti-slip protrusion 42 and the connecting ring 41 is an acute angle. The connecting ring 41 and the anti-slip protrusion 42 are both fitted into the fitting groove 12, and the anti-slip protrusion 42 protrudes out of the fitting groove 12.

[0027] In the above description, the fitting groove 12 provides a fixed position so that the connecting ring 41 and the anti-slip protrusion 42 can be stably embedded. The acute angled design of the anti-slip protrusion 42 can reduce the radial vibration transmission during bolt installation and generate a hook-like interlocking effect, increasing the contact friction force, thereby effectively resisting the slippage caused by vibration or external force. This design can improve the anti-loosening performance of the first anti-slip component 4 and the second anti-slip component 5. By increasing the friction with the tank wall, it reduces the probability of bolt displacement in dynamic environments, thereby reducing the risk of leakage and improving the connection sealing and overall reliability.

[0028] Furthermore, the bolt structure 2 includes a bolt body 21 disposed on one side of the bolt cap body 11 where the fitting groove 12 is located. The bolt body 21 has an internal thread groove 22 inside. The bolt body 21 has a side sliding groove 24 that communicates with the internal thread groove 22. The thickness of the side sliding groove 24 is less than the diameter of the internal thread groove 22. The internal thread groove 22 and the side sliding groove 24 are provided with V-shaped parts 25. When the V-shaped parts 25 are not under stress, the distance between the two ends is greater than the diameter of the bolt body 21. The internal thread groove 22 is internally threaded with an internal bolt 23.

[0029] In the above process, tightening the inner bolt 23 pushes the V-shaped part 25 to expand radially along the side groove 24, causing its two ends to elastically deform due to size limitations and press tightly against the tank wall, forming an initial pre-tightening anchor. When the nut 3 is installed subsequently, its screwing pressure acts in the opposite direction on the V-shaped part 25, forcing it to elastically contract into the side groove 24, while maintaining a continuous pressing force on the tank wall, realizing the dynamic conversion between pre-tightening force and final locking force. This design, through the elastic deformation characteristics of the V-shaped part 25, efficiently completes the bidirectional locking of the tank wall in a single-person operation environment, significantly improving the resistance to vibration and loosening. Combined with the thickness limitation of the side groove 24, the deformation range of the V-shaped part 25 is precisely controlled, ensuring sealing reliability and reducing the risk of leakage.

[0030] Furthermore, the connection stability between structures can be further enhanced by applying a curing adhesive to the surface of this invention.

[0031] In this embodiment, the bolt cap structure 1 is fixed to the inner side of the tank wall, the bolt rod structure 2 is connected to the nut 3, and the anti-slip component 1 4 and the anti-slip component 2 5 are located on the sides of the bolt cap structure 1 and the nut 3 near the tank wall, respectively. The connecting ring 41 and the anti-slip protrusion 42 are fixed by the fitting groove 12 of the anti-slip component 1 4 and the fitting groove of the nut 3. The anti-slip protrusion 42 forms an acute angle with the diameter line of the connecting ring 41 and protrudes out of the fitting groove 12. When the bolt is tightened, the acute angle design of the anti-slip protrusion 42 produces a biting effect and a barb action, increasing the friction with the tank wall and effectively resisting slippage caused by vibration or external force. At the same time, the bolt rod structure 2... The bolt body 21 is provided with an internal threaded groove 22, a side sliding groove 24 and a V-shaped part 25. The thickness of the side sliding groove 24 is less than the diameter of the internal threaded groove 22. When the V-shaped part 25 is not under stress, the distance between the two ends is greater than the diameter of the bolt body 21. The inner bolt 23 is threaded to the internal threaded groove 22. By tightening the inner bolt 23, the V-shaped part 25 is pushed to expand radially and deform elastically to press against the tank wall to form an initial pre-tightening anchor. Subsequently, when the nut 3 is screwed in, it applies reverse pressure to make the V-shaped part 25 elastically contract into the side sliding groove 24 but maintain a continuous pressing force on the tank wall, realizing the dynamic conversion between the pre-tightening force and the final locking force.

[0032] Working principle:

[0033] like Figures 1 to 4 As shown, in use, the user can first enter the tank and insert the bolt body 21 into the tank wall hole while keeping the bolt cap body 11 inside the tank wall. After placing the bolt cap structure 1 and bolt structure 2 in all the tank wall holes, the user can exit the tank and insert the V-shaped part 25 into the side groove 24. Then, use a screwdriver to tighten the inner bolt 23 so that it enters the inner thread groove 22, while pushing the V-shaped part 25 closer to the tank wall until the V-shaped part 25 is tightly pressed against the tank wall. After installing all the V-shaped parts 25, then tighten the nut 3. The threaded connection is made to the bolt body 21 and screwed in until it exerts pressure on the V-shaped part 25. Then, the screwdriver is taken out and the inner bolt 23 is loosened. The pressure generated by the screw on the V-shaped part 25 when the nut 3 is screwed in causes the V-shaped part 25 to deform and retract into the side groove 24. During this process, the V-shaped part 25 can always be pressed against the tank wall until the anti-slip part 25 on the nut 3 contacts the tank wall and exerts pressure on it. This achieves a seamless connection between the pre-tightening force applied before the nut 3 is installed and the pressure applied after the nut 3 is installed, ensuring the high efficiency and high reliability of this utility model in a single-person installation environment.

[0034] Furthermore, the inclination direction of the anti-slip component 4 is opposite to the thread direction of the bolt body 21, and the inclination direction of the anti-slip component 5 is opposite to the tightening direction of the thread inside the nut 3. This design ensures that when pressure is applied to both sides of the tank wall, the anti-slip component 4 and the anti-slip component 5 will not easily displace relative to the tank wall when the tank vibrates, thereby increasing the anti-loosening performance of the present invention. In addition, combined with the squeezing action of the inner bolt 23 on the V-shaped component 25, the squeezing action of the V-shaped component 25 on the nut 3, and the relative action between the bolt body 21 and the V-shaped component 25, the anti-loosening performance of the nut 3 of the present invention can be further increased.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A novel bolt for preventing loosening and leakage in tank walls, characterized in that, It includes a nut structure (1), a nut rod structure (2) on the nut structure (1), a nut (3) threadedly connected to the nut rod structure (2), an anti-slip part one (4) on the side of the nut structure (1) near the nut (3), and an anti-slip part two (5) on the side of the nut (3) near the nut structure (1). The cap structure (1) includes a cap body (11) with a fitting groove (12) and a rod structure (2) including a rod body (21) on one side of the cap body (11) where the fitting groove (12) is located. The rod body (21) has an internal thread groove (22) inside and a side slide groove (24) that communicates with the internal thread groove (22) on the rod body (21). The internal thread groove (22) and the side slide groove (24) are provided with V-shaped parts (25). The internal thread groove (22) is internally threaded with an internal bolt (23).

2. A new type of bolt for preventing loosening and leakage of tank wall according to claim 1, characterized in that: The structure of the first anti-slip component (4) is the same as that of the second anti-slip component (5). The first anti-slip component (4) includes a connecting ring (41) with an anti-slip protrusion (42) connected to it. The included angle between the diameter line of the anti-slip protrusion (42) and the connecting ring (41) is an acute angle.

3. A new type of bolt for preventing loosening and leakage of tank wall according to claim 1, characterized in that: The nut (3) has a groove that is the same as the fitting groove (12).

4. A new type of bolt for preventing loosening and leakage of tank wall according to claim 2, characterized in that: The connecting ring (41) and the anti-slip protrusion (42) are both fitted into the fitting groove (12), and the anti-slip protrusion (42) protrudes out of the fitting groove (12).

5. A new type of bolt for preventing loosening and leakage of tank wall according to claim 1, characterized in that: The distance between the two ends of the V-shaped part (25) is greater than the diameter of the bolt body (21) when it is not under stress.

6. A novel anti-loosening and leak-proof bolt for tank walls according to claim 1, characterized in that: The thickness of the side groove (24) is less than the diameter of the internal thread groove (22).

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