Corrosion-resistant fastener

Abstract

The utility model discloses a corrosion-resistant fastener which comprises a fastener body, the fastener body comprises a bolt head, one side of the bolt head is fixedly connected with a screw rod, the outer wall of the screw rod is in threaded connection with a nut, one side of the nut is provided with a butt joint groove, a spray head on the outer wall of the fastener body is provided with a corrosion-resistant coating, and one side of the nut is fixedly connected with a connecting pipe. The screw and the nut are matched for use, so that a connecting part can be fastened, enough stability of the connecting part is guaranteed, the non-slip cap is matched for use, the non-slip cap and the connecting pipe are in threaded connection, the non-slip cap and the nut are fixed, and the nut is fixed through threaded connection between the non-slip cap and the screw; according to the fastening piece, the problem that the nut slides and loosens under the vibration condition is solved, the anti-corrosion coating is used, the fastening piece body is protected, corrosion is avoided, the plastic protection pipe is used, the screw rod can be protected, the screw rod is prevented from making direct contact with air, and the service life of the screw rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a corrosion-resistant fastener. Background Technology

[0002] Fasteners are a general term for a class of mechanical parts used to fasten two or more parts (or components) together into a whole. Their main function is to provide a reliable connection, prevent relative displacement of the connected parts during use, and ensure the integrity and stability of the mechanical structure.

[0003] Existing fasteners typically use bolts and nuts to secure connected components and ensure stability. However, in actual use, bolts are directly exposed to the air and are susceptible to corrosion from rain, fog, and acidic substances in industrial exhaust gases. When bolts are corroded, their mechanical properties decrease. For example, corrosion of the bolt's thread reduces the effective load-bearing area, lowering its tensile and shear strength, thus affecting the bolt's service life and stability. Furthermore, when the connected components are subjected to vibration and impact, the nut and bolt can easily slip, causing the nut to loosen and affecting stability. Consequently, the fasteners perform poorly in actual use. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a corrosion-resistant fastener that solves the problem that fasteners are corroded by rainwater, fog, and acidic substances in industrial exhaust gases during use, leading to bolt corrosion and damage, affecting bolt stability, reducing bolt service life, and causing nuts to slip and loosen due to impact and vibration, which can easily lead to safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant fastener, comprising a fastener body, the fastener body further comprising a bolt head, a screw rod fixedly connected to one side of the bolt head, a nut screwed onto the outer wall of the screw rod, a mating groove formed on one side of the nut, an anti-corrosion coating on the outer wall of the fastener body, a connecting pipe fixedly connected to one side of the nut, threads formed on the outer wall of the connecting pipe, an anti-slip cap screwed onto the outer wall of the connecting pipe, the anti-slip cap being screwed onto the screw rod, the bolt head and the nut being both made of stainless steel, the outer edge of the anti-slip cap being hexagonal, a plastic protective tube movably connected to the outer wall of the anti-slip cap, the plastic protective tube being movably connected to the mating groove.

[0006] The beneficial effects of this utility model are as follows: the use of the screw and nut together can fasten the connecting parts, ensuring sufficient stability of the connecting parts. The use of the anti-slip cap allows for screwing the anti-slip cap to the connecting pipe, fixing the anti-slip cap to the nut. Furthermore, the screwing of the anti-slip cap to the screw rod secures the nut, preventing it from slipping or loosening under vibration. The use of an anti-corrosion coating protects the fastener body from rust, and the use of a plastic protective tube protects the screw rod, preventing direct contact with air and extending its service life.

[0007] In order to stabilize the plastic protective tube;

[0008] As a further improvement to the above technical solution: a rubber ring is fixedly connected to the inner wall of the plastic protective tube, and the rubber ring is adapted to the anti-slip cap;

[0009] The beneficial effects of this improvement are as follows: by using a rubber ring, a large frictional force can be generated between the inner hole of the rubber ring and the anti-slip cap, thereby ensuring the stability of the plastic protective tube and preventing it from moving at will, and ensuring the stability of the connection between the plastic protective tube and the nut, preventing slippage.

[0010] In order to achieve a seal at one end of the protective tube;

[0011] As a further improvement to the above technical solution: a sealing rubber block is movably connected to the inner wall of the rubber ring, and a connecting block is fixedly connected to one side of the sealing rubber block;

[0012] The beneficial effects of this improvement are: by using sealing rubber blocks and connecting blocks, one end of the plastic protective tube can be sealed to prevent rainwater from entering from one end of the plastic protective tube, thus sealing the protective tube.

[0013] In order to achieve a seal at the connection between the nut and the connecting parts;

[0014] As a further improvement to the above technical solution: a first sealing ring is fixedly connected to the side of the nut away from the connecting pipe;

[0015] The beneficial effects of this improvement are as follows: the use of the first sealing ring can achieve a better seal between the nut and the connecting parts, protect the screw, prevent rainwater from seeping in and causing corrosion to the screw, and extend the service life of the screw.

[0016] To achieve a seal between the bolt head and the connecting parts;

[0017] As a further improvement to the above technical solution: a second sealing ring is fixedly connected to the side of the bolt head adjacent to the nut, and both the first sealing ring and the second sealing ring are made of rubber.

[0018] The beneficial effects of this improvement are as follows: by using the second sealing ring, the bolt head and the connecting parts can be better sealed, preventing rainwater from seeping in from the connection between the bolt head and the connecting parts, thus achieving a good seal at the connection and preventing corrosion of the bolt.

[0019] To protect the bolt heads and prevent them from corroding;

[0020] As a further improvement to the above technical solution: a protective cap is movably connected to the outer wall of the bolt head;

[0021] The beneficial effects of this improvement are as follows: by using a protective cap, the bolt head can be protected, preventing the bolt head from directly contacting the air and causing corrosion, thus ensuring better compatibility with disassembly tools.

[0022] To avoid obstructing the screw and facilitate docking;

[0023] As a further improvement to the above technical solution: the sealing rubber block is provided with an avoidance groove;

[0024] The beneficial effects of this improvement are: by using the clearance groove, the sealing rubber block can be aligned with the rubber ring, avoiding contact with the screw, resulting in the sealing rubber block being precisely and stably inserted into the rubber ring.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0027] Figure 2 Front view provided for this utility model;

[0028] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0029] Figure 4 A schematic diagram of the nut provided by this utility model;

[0030] Figure 5 A schematic diagram of the anti-slip cap provided by this utility model.

[0031] In the diagram, 1. Fastener body; 11. Bolt head; 12. Screw; 13. Nut; 14. Butt groove; 15. Anti-corrosion coating; 16. Connecting pipe; 17. Thread; 18. Anti-slip cap; 19. Plastic protective tube; 21. Rubber ring; 31. Sealing rubber block; 32. Connecting block; 41. First sealing ring; 51. Second sealing ring; 61. Protective cap; 71. Clearance groove. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0033] like Figures 1 to 5As shown in the figure, this utility model provides a corrosion-resistant fastener, including a fastener body 1, which also includes a bolt head 11. A screw 12 is fixedly connected to one side of the bolt head 11, and a nut 13 is screwed onto the outer wall of the screw 12. The use of the screw 12 and the nut 13 can fix the connecting parts and ensure the stability of the connecting parts. A mating groove 14 is provided on one side of the nut 13. An anti-corrosion coating 15 is sprayed on the outer wall of the fastener body 1. The use of the protective coating can protect the screw 12 and prevent it from being corroded by rainwater or acidic substances, thus providing good protection for the screw 12. A connecting pipe 16 is fixedly connected to one side of the nut 13. The outer wall of the connecting pipe 16 is provided with threads 17, and an anti-slip device is screwed onto the outer wall of the connecting pipe 16. The anti-slip cap 18 is screwed to the screw rod 12. Both the bolt head 11 and the nut 13 are made of 304 stainless steel. The outer edge of the anti-slip cap 18 is hexagonal, and a plastic protective tube 19 is movably connected to the outer wall of the anti-slip cap 18. The plastic protective tube 19 is movably connected to the mating groove 14. With the use of the plastic protective tube 19, the screw rod 12 can be shielded to prevent it from directly contacting the air, thus extending its service life. The screwed connection between the anti-slip cap 18, the nut 13, and the screw rod 12 effectively prevents the nut 13 from loosening and improves its stability. A rubber ring 21 is fixedly connected to the inner wall of the plastic protective tube 19. The rubber ring 21 is compatible with the anti-slip cap 18, and its use can generate increased friction between the rubber ring 21 and the anti-slip cap 18. This facilitates a stable connection between the plastic protective tube 19 and the nut 13, preventing slippage and detachment, and ensuring a stable connection between the plastic protective tube 19 and the anti-slip cap 18. A sealing rubber block 31 is movably connected to the inner wall of the rubber ring 21, and a connecting block 32 is fixedly connected to one side of the sealing rubber block 31. The cooperation of the sealing rubber block 31 and the connecting block 32 seals the end of the plastic protective tube 19 away from the nut 13, generating significant friction between the sealing rubber block 31 and the rubber ring 21, ensuring a stable connection between the connecting block 32 and the plastic protective tube 19, preventing detachment. A first sealing ring 41 is fixedly connected to the side of the nut 13 away from the connecting tube 16, and a second sealing ring 41 is fixedly connected to the side of the bolt head 11 adjacent to the nut 13. The sealing ring 51, the first sealing ring 41, and the second sealing ring 51 are all made of rubber. The use of the first sealing ring 41 and the second sealing ring 51 can effectively seal the connection between the bolt head 11 and the nut 13 and the connecting parts, preventing rainwater from seeping in and causing corrosion to the screw 12. It can also provide good protection for the screw 12. A protective cap 61 is movably connected to the outer wall of the bolt head 11. The use of the protective cap 61 can protect and shield the bolt head 11, preventing it from rusting and becoming incompatible with the matching disassembly tool. The sealing rubber block 31 has a relief groove 71. The use of the relief groove 71 can make the sealing rubber block 31 stably inserted into the rubber ring 21, avoiding the screw 12 and preventing the screw 12 from pressing against the sealing rubber block 31.

[0034] The working principle and usage process of this utility model are as follows: First, the bolt head 11 is connected to the connecting component via the screw 12. This, combined with the screw connection between the nut 13 and the screw 12, quickly secures the connecting component. During the rotation of the nut 13, the first sealing ring 41 and the second sealing ring 51 gradually and tightly adhere to the connecting component, ensuring a seal at the connection. Then, the anti-slip cap 18 is screwed onto the screw 12 bracket, and finally, the anti-slip cap 18 is screwed onto the connecting tube 16 on the nut 13, further securing the nut 13 and preventing it from slipping off. Finally, the protective cap 61 is used. In this process, the bolt head 11 is protected and shielded to prevent it from rusting and being damaged. Based on the distance between the nut 13 and the tail of the fastener body 1, a plastic protective tube 19 of the same length is cut, and the plastic protective tube 19 is aligned with the nut 13. With the use of the rubber ring 21 on the inner wall of the plastic protective tube 19, a large frictional force is generated between it and the anti-slip cap 18, thereby ensuring the stability of the plastic protective tube 19. Finally, the sealing rubber block 31 on the connecting block 32 is aligned with the rubber ring 21 to seal the plastic protective tube 19 and protect the bolt 12. This completes the entire process of using the corrosion-resistant fastener.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant fastener, comprising a fastener body (1), characterized in that: The fastener body (1) also includes a bolt head (11), a screw rod (12) is fixedly connected to one side of the bolt head (11), a nut (13) is screwed onto the outer wall of the screw rod (12), a mating groove (14) is provided on one side of the nut (13), an anti-corrosion coating (15) is sprayed on the outer wall of the fastener body (1), a connecting pipe (16) is fixedly connected to one side of the nut (13), a thread (17) is provided on the outer wall of the connecting pipe (16), an anti-slip cap (18) is screwed onto the outer wall of the connecting pipe (16), the anti-slip cap (18) is screwed onto the screw rod (12), the bolt head (11) and the nut (13) are both made of 304 stainless steel, the outer edge of the anti-slip cap (18) is hexagonal, a plastic protective tube (19) is movably connected to the outer wall of the anti-slip cap (18), and the plastic protective tube (19) is movably connected to the mating groove (14).

2. The corrosion-resistant fastener according to claim 1, characterized in that: A rubber ring (21) is fixedly connected to the inner wall of the plastic protective tube (19), and the rubber ring (21) is adapted to the anti-slip cap (18).

3. A corrosion-resistant fastener according to claim 2, characterized in that: A sealing rubber block (31) is movably connected to the inner wall of the rubber ring (21), and a connecting block (32) is fixedly connected to one side of the sealing rubber block (31).

4. A corrosion-resistant fastener according to claim 1, characterized in that: The nut (13) is fixedly connected to a first sealing ring (41) on the side away from the connecting pipe (16).

5. A corrosion-resistant fastener according to claim 4, characterized in that: The bolt head (11) is fixedly connected to the side adjacent to the nut (13) with a second sealing ring (51), and both the first sealing ring (41) and the second sealing ring (51) are made of rubber.

6. A corrosion-resistant fastener according to claim 1, characterized in that: A protective cap (61) is movably connected to the outer wall of the bolt head (11).

7. A corrosion-resistant fastener according to claim 3, characterized in that: The sealing rubber block (31) is provided with a clearance groove (71).

Images