Coated anti-corrosion fastening bolt

Abstract

The utility model relates to the technical field of fastening bolts, in particular to a coated anti-corrosion fastening bolt. The wrapping type anti-corrosion fastening bolt comprises a fastening bolt body, an anti-corrosion cover and an anti-corrosion base, a through hole is formed in the top of the anti-corrosion base in a penetrating mode, a first sealing ring is arranged in the through hole, a groove is formed in the bottom of the anti-corrosion cover, a hexagonal groove is formed in the top of the groove, and a second sealing ring is arranged in the hexagonal groove. Positioning holes are uniformly formed in the top of the anti-corrosion base, a fixing assembly is placed in the groove, a clamping groove is formed in the inner side wall of the groove, a second sealing ring is placed in the clamping groove, and locking holes are uniformly formed in the outer side wall of the anti-corrosion base; the connecting gap between the anti-corrosion base and the screw rod of the fastening bolt is sealed through the first sealing ring, and the connecting gap between the anti-corrosion cover and the anti-corrosion base is sealed through the second sealing ring, so that the screw head of the fastening bolt is wrapped in all directions, and then anti-corrosion protection is conducted on the fastening bolt.

Description

Technical Field

[0001] This utility model relates to the field of fastening bolt technology, specifically a coated anti-corrosion fastening bolt. Background Technology

[0002] A bolt is a cylindrical threaded fastener that is fitted with a nut. It consists of a head and a shank (a cylinder with external threads). It is used to fasten two parts with through holes.

[0003] Chinese Patent No. CN219139606U discloses a covered anti-corrosion fastening bolt and fastening assembly. The covered anti-corrosion fastening bolt includes a fastening bolt body, which includes a bolt head and a bolt shank integrally formed and connected to the lower end of the bolt head. A boss is integrally formed and connected to the lower end of the outer side wall of the bolt head. An anti-corrosion base is sleeved on the bolt shank. An anti-corrosion cover is wrapped around the bolt head and the anti-corrosion base. This utility model sets an anti-corrosion cover and an anti-corrosion base at the upper and lower ends of the bolt head of the fastening bolt body, respectively, to cover the bolt head and prevent it from being exposed, thereby playing a role in preventing corrosion of the bolt head. The anti-corrosion cover and the anti-corrosion base are easy to install and disassemble. Just pull the arc block, find the corresponding position of the anti-corrosion cover and the bolt head, and move the anti-corrosion cover downward, which improves the construction efficiency of workers.

[0004] The existing technical solutions mentioned above have the following drawbacks: when protecting the screw head of the fastening bolt from corrosion, it is necessary to first pull outwards two sets of arc-shaped blocks to retract the limiting plug before it can be placed over the screw head. Similarly, when disassembling the anti-corrosion cover, it is also necessary to pull the arc-shaped blocks, which makes the disassembly and assembly of the anti-corrosion cover inconvenient. In view of the above situation, technical innovation is carried out on the basis of the existing encapsulated anti-corrosion fastening bolt. Utility Model Content

[0005] The purpose of this invention is to provide a covered anti-corrosion fastening bolt to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a covered corrosion-resistant fastening bolt, comprising:

[0007] The system includes fastening bolts, a corrosion-resistant cover, and a corrosion-resistant base. The top of the corrosion-resistant base has a through hole, and a first sealing ring is installed inside the through hole. The bottom of the corrosion-resistant cover has a groove, and the top of the groove has a hexagonal groove. The top of the corrosion-resistant base has evenly spaced positioning holes, and a fixing component is placed inside the groove. The inner side wall of the groove has a slot, and a second sealing ring is placed inside the slot. The outer side wall of the corrosion-resistant base has evenly spaced locking holes, and the bottom of the corrosion-resistant base has evenly spaced anti-slip textures.

[0008] Preferably, the fixing component includes a pin and a spring, the outer side wall of the pin is provided with an anti-slip sleeve, and the outer side wall of the spring is provided with a round-headed pin.

[0009] Preferably, the pins are evenly distributed at the top of the groove of the anti-corrosion cover, the inner sidewall of the groove is evenly provided with mounting holes, the spring is fixedly disposed in the mounting holes, and the round-headed pins are slidably disposed in the mounting holes.

[0010] Preferably, the first sealing ring is located on the outer ring of the fastening bolt thread, and the inner sidewall of the anti-corrosion base is in close contact with the outer sidewall of the fastening bolt thread.

[0011] Preferably, the screw head of the fastening bolt is located in the hexagonal groove of the anti-corrosion cover, the anti-corrosion base is located in the groove of the anti-corrosion cover, and the inner wall of the second sealing ring is tightly fitted with the outer wall of the anti-corrosion base.

[0012] Preferably, the anti-slip sleeve is tightly inserted into the positioning hole at the top of the anti-corrosion base, and the round head portion of the round head pin is inserted into the locking hole on the outer side wall of the anti-corrosion base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model seals the connection gap between the anti-corrosion base and the screw of the fastening bolt through the first sealing ring, and seals the connection gap between the anti-corrosion cover and the anti-corrosion base through the second sealing ring, thereby fully wrapping the screw head of the fastening bolt and effectively protecting it from corrosion.

[0015] The spring drives the round-headed pin to insert into the locking hole of the anti-corrosion base. Together with the friction between the anti-slip sleeve and the positioning hole of the anti-corrosion base, as well as the friction between the second sealing ring and the anti-corrosion base, the stability of the anti-corrosion cover and the anti-corrosion base after connection can be effectively guaranteed, thereby ensuring the reliability of the device. When the anti-corrosion cover needs to be removed, simply pull the anti-corrosion cover upwards, thus ensuring the ease of disassembly and assembly of the device. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a covered corrosion-resistant fastening bolt according to the present invention;

[0017] Figure 2 This is a front sectional view of a type of encapsulated anti-corrosion fastening bolt according to the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0019] In the diagram: 1. Fastening bolt; 11. Anti-corrosion cover; 12. Anti-corrosion base; 13. First sealing ring; 14. Pin; 15. Anti-slip sleeve; 16. Second sealing ring; 17. Spring; 18. Round head pin. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3 A type of encapsulated anti-corrosion fastening bolt includes a fastening bolt 1, an anti-corrosion cover 11, and an anti-corrosion base 12. The top of the anti-corrosion base 12 has a through hole, and a first sealing ring 13 is fixedly installed in the through hole. The bottom of the anti-corrosion cover 11 has a groove, and the top of the groove has a hexagonal groove. The top of the anti-corrosion base 12 has evenly spaced positioning holes, and a fixing component is placed in the groove. The inner side wall of the groove has a slot, and a second sealing ring 16 is placed in the slot. The outer side wall of the anti-corrosion base 12 has evenly spaced locking holes, and the bottom of the anti-corrosion base 12 has evenly spaced anti-slip textures. When the fastening bolt 1 tightens an external object, it will squeeze the anti-corrosion base 12. The anti-slip textures on the bottom of the anti-corrosion base 12 can improve the installation stability of the fastening bolt 1.

[0022] The fixing assembly includes pins 14 and springs 17. Anti-slip sleeves 15 are fixedly installed on the outer wall of pins 14, and round-headed pins 18 are fixedly installed on the outer wall of springs 17. Pins 14 are evenly fixedly installed at the top of the grooves in the anti-corrosion cover 11. Mounting holes are evenly provided on the inner wall of the grooves. Springs 17 are fixedly installed in the mounting holes, and round-headed pins 18 are slidably installed in the mounting holes. A first sealing ring 13 is located on the outer ring of the fastening bolt 1. The inner wall of the anti-corrosion base 12 is tightly fitted to the outer wall of the fastening bolt 1. The head of the fastening bolt 1 is located in the hexagonal groove of the anti-corrosion cover 11. The anti-corrosion base 12 is located in the groove of the anti-corrosion cover 11. The inner wall of the second sealing ring 16 is tightly fitted to the outer wall of the anti-corrosion base 12. Anti-slip sleeves 15 are tightly inserted into the positioning holes at the top of the anti-corrosion base 12. The round head of the round-headed pin 18 is inserted into the locking holes on the outer wall of the anti-corrosion base 12. When the anti-corrosion cover 11 is placed over the anti-corrosion base 12 and the screw head of the fastening bolt 1, the connection gap between the anti-corrosion base 12 and the screw head of the fastening bolt 1 is sealed by the first sealing ring 13, and the connection gap between the anti-corrosion cover 11 and the anti-corrosion base 12 is sealed by the second sealing ring 16. This provides all-round protection for the screw head of the fastening bolt 1, thus effectively protecting it from corrosion. The spring 17 uses its own elasticity to drive the round-headed pin 18 to insert into the locking hole of the anti-corrosion base 12. Combined with the friction between the anti-slip sleeve 15 and the positioning hole of the anti-corrosion base 12, as well as the friction between the second sealing ring 16 and the anti-corrosion base 12, the stability of the connection between the anti-corrosion cover 11 and the anti-corrosion base 12 can be effectively guaranteed, thus ensuring the reliability of the device. When it is necessary to disassemble the anti-corrosion cover 11, simply pull the anti-corrosion cover 11 upwards, thus ensuring the ease of disassembly and assembly of the device.

[0023] Working principle: When the fastening bolt 1 is tightened onto an external object, it compresses the anti-corrosion base 12. The anti-slip texture on the bottom of the anti-corrosion base 12 improves the installation stability of the fastening bolt 1. When the anti-corrosion cover 11 covers the anti-corrosion base 12 and the threaded head of the fastening bolt 1, the first sealing ring 13 seals the connection gap between the anti-corrosion base 12 and the threaded head of the fastening bolt 1, and the second sealing ring 16 seals the connection gap between the anti-corrosion cover 11 and the anti-corrosion base 12. This provides comprehensive protection for the threaded head of the fastening bolt 1. The device is wrapped to effectively protect it from corrosion. The spring 17 uses its own elasticity to drive the round-headed pin 18 to insert into the locking hole of the anti-corrosion base 12. In addition, the friction between the anti-slip sleeve 15 and the positioning hole of the anti-corrosion base 12 and the friction between the second sealing ring 16 and the anti-corrosion base 12 can effectively ensure the stability of the anti-corrosion cover 11 after it is connected to the anti-corrosion base 12, thereby ensuring the reliability of the device. When it is necessary to disassemble the anti-corrosion cover 11, simply pull the anti-corrosion cover 11 upwards to ensure the ease of disassembly and assembly of the device.

Claims

1. A type of encapsulated corrosion-resistant fastening bolt, characterized in that, include: The fastening bolts (1), the anti-corrosion cover (11) and the anti-corrosion base (12) are provided. The top of the anti-corrosion base (12) is provided with a through hole and a first sealing ring (13) is provided in the through hole. The bottom of the anti-corrosion cover (11) is provided with a groove and a hexagonal groove is provided at the top of the groove. The top of the anti-corrosion base (12) is provided with positioning holes. A fixing component is placed in the groove. A slot is provided on the inner side wall of the groove and a second sealing ring (16) is placed in the slot. The outer side wall of the anti-corrosion base (12) is provided with locking holes and the bottom of the anti-corrosion base (12) is provided with anti-slip textures.

2. The encapsulated corrosion-resistant fastening bolt according to claim 1, characterized in that: The fixing assembly includes a pin (14) and a spring (17). The outer wall of the pin (14) is provided with an anti-slip sleeve (15), and the outer wall of the spring (17) is provided with a round-headed pin (18).

3. The encapsulated corrosion-resistant fastening bolt according to claim 2, characterized in that: The pins (14) are evenly arranged at the top of the groove of the anti-corrosion cover (11), and the inner sidewall of the groove is evenly provided with mounting holes. The spring (17) is fixedly arranged in the mounting hole, and the round-headed pins (18) are slidably arranged in the mounting hole.

4. The encapsulated corrosion-resistant fastening bolt according to claim 2, characterized in that: The first sealing ring (13) is located on the outer ring of the fastening bolt (1), and the inner wall of the anti-corrosion base (12) is in close contact with the outer wall of the fastening bolt (1).

5. The encapsulated corrosion-resistant fastening bolt according to claim 2, characterized in that: The head of the fastening bolt (1) is located in the hexagonal groove of the anti-corrosion cover (11), the anti-corrosion base (12) is located in the groove of the anti-corrosion cover (11), and the inner wall of the second sealing ring (16) is tightly fitted with the outer wall of the anti-corrosion base (12).

6. The encapsulated corrosion-resistant fastening bolt according to claim 2, characterized in that: The anti-slip sleeve (15) is tightly inserted into the positioning hole at the top of the anti-corrosion base (12), and the round head part of the round head pin (18) is inserted into the locking hole on the outer side wall of the anti-corrosion base (12).

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