High-temperature-resistant and oxidation-resistant bolt

Abstract

The utility model discloses a high temperature -resistant antioxidant bolt belongs to bolt technical field, including bolt body, bolt body includes the stem and nut, the surface of stem has the external thread, and the one end fixed welding of stem has extruded block, and the surface fixed connection of another end of stem and nut, and the one end of nut has first recess, and the bottom of first recess has second recess, and first recess and second recess are all hexagonal, and the one end of nut has the anti -jolt mechanism of bushing, this high temperature -resistant antioxidant bolt, through setting up the nut, first recess, second recess and metal gasket, make bolt can through four different sizes of spanner and carry out the disassembly and assembly, greatly increased the use convenience of bolt, and through the extruded block of stem one end setting, when being extruded by stem, will deform and increase the outside diameter, can prevent bolt's own drop, make bolt connection more stable and effective.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and more specifically, to bolts that are resistant to high temperatures and oxidation. Background Technology

[0002] Bolts are common mechanical parts, cylindrical threaded fasteners that are used with nuts. They consist of a head and a threaded shank and are used to fasten two parts with through holes.

[0003] Currently, most common bolts can only be installed and removed using wrenches of a specific size. This limited wrench applicability can cause inconvenience for users, and the bolts may loosen due to vibration during use, reducing connection stability. For example, CN218598572U discloses an anti-oxidation bolt, which includes a hexagonal bolt with a nano-composite ceramic coating fixedly connected to its surface. The surface of the nano-composite ceramic coating is fixedly connected to a layer of iron oxide red anti-rust paint, the surface of the iron oxide red anti-rust paint layer is fixedly connected to an acrylic polyurethane topcoat layer, and the surface of the acrylic polyurethane topcoat layer is fixedly connected to a layer of metallic fluorocarbon paint.

[0004] As can be seen from the above-mentioned publicly available solutions, hex bolts can only be installed and removed with a wrench, while the reserved cross slot can be rotated with a screwdriver. However, the rotation force is insufficient to disassemble the bolt after it has been tightened. Furthermore, when the hex bolt nut is severely worn, the bolt cannot be installed or removed, causing inconvenience to the user. Moreover, relying solely on a corrosion-resistant rubber sleeve for shock absorption and anti-loosening may not meet the current user needs. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a high-temperature resistant and oxidation-resistant bolt. This high-temperature resistant and oxidation-resistant bolt, through the setting of a nut, a first groove, a second groove, and a metal washer, allows the bolt to be installed and removed using four different sizes of wrenches, greatly increasing the convenience of bolt use. Furthermore, the compression block set at one end of the rod deforms and increases the outer diameter when squeezed by the rod, which can prevent the bolt from falling off itself and make the bolt connection more stable and effective.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A high-temperature resistant and oxidation-resistant bolt includes a bolt body comprising a shank and a nut. The shank has external threads on its surface. A compression block is fixedly welded to one end of the shank, and the other end of the shank is fixedly connected to the surface of the nut. One end of the nut has a first groove, and the bottom of the first groove has a second groove, both of which are hexagonal. One end of the nut is fitted with an anti-vibration mechanism. This high-temperature resistant and oxidation-resistant bolt, through the design of the nut, the first groove, the second groove, and the metal washer, allows the bolt to be installed and removed using four different sizes of wrenches, greatly increasing the ease of use. Furthermore, the compression block at one end of the shank deforms and increases the outer diameter when compressed by the shank, preventing the bolt from falling off and making the bolt connection more stable and effective.

[0008] Furthermore, the anti-vibration mechanism includes a metal washer with a mounting hole in the middle. The mounting hole is hexagonal in shape, and its inner wall is slidably connected to the surface of the nut. The metal washer rotates synchronously with the nut through the mounting hole, making it easy to rotate the bolt by rotating the metal washer with a wrench.

[0009] Furthermore, a rubber pad is movably connected to the surface of the metal gasket, and a boss is pre-set on the surface of the rubber pad. The side of the boss is movably connected to the inner wall of the mounting hole. The rubber pad has a shock-absorbing function, and the elasticity of the boss can automatically fix it to the assembly position of the metal gasket.

[0010] Furthermore, the material of the rubber pad is corrosion-resistant elastic rubber, and a central hole is opened in the center of the rubber pad. The inner wall of the central hole is movably connected to the surface of the rod. The inner diameter of the central hole is smaller than the outer diameter of the rod, and the installation position on the rod can be determined by elasticity.

[0011] Furthermore, the extrusion block is cylindrical in shape and made of metal. The hardness of the extrusion block is lower than that of the rod. After being squeezed by the rod, the extrusion block will deform and increase its outer diameter, thereby improving the rod's anti-loosening function.

[0012] Furthermore, the metal washer is made of the same material as the rod, and the side of the metal washer has a radially symmetrical plane, which makes it easy for the wrench to engage the metal washer and has an anti-slip function.

[0013] Furthermore, the surface of the bolt body is fixedly connected with a high-temperature resistant and anti-oxidation coating. The high-temperature resistant and anti-oxidation coating is made of high-temperature alloy coatings such as nickel-based alloys and cobalt-based alloys. It is not only resistant to high temperatures, but also has good toughness and wear resistance, which can effectively enhance the high-temperature resistance and anti-oxidation performance of the bolt.

[0014] Compared with existing technologies, the advantages of this utility model are: (1) This solution, through the setting of nuts, first groove, second groove and metal washer, allows the bolt to be installed and removed by four different sizes of wrench, which greatly increases the convenience of bolt use.

[0015] (2) This solution uses a compression block set at one end of the rod. When the rod is compressed, the block will deform and increase the outer diameter, which can prevent the bolt from falling off and make the bolt connection more stable and effective. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rod and nut mounting structure of this utility model; Figure 3 for Figure 2 A cross-sectional view of the rod and nut structure; Figure 4 This is a schematic diagram of the earthquake-resistant mechanism structure of this utility model; Figure 5 for Figure 4 A schematic diagram of the rubber pad structure.

[0017] Explanation of the labels in the diagram: 1. Bolt body; 2. Rod body; 21. External thread; 22. Extrusion block; 3. Nut; 31. First groove; 32. Second groove; 4. High temperature resistant and anti-oxidation coating; 5. Anti-vibration mechanism; 51. Metal washer; 52. Flat surface; 53. Mounting hole; 54. Rubber pad; 55. Boss; 56. Center hole. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figure 1-5This is a high-temperature resistant and oxidation-resistant bolt, comprising a bolt body 1, which is made of carbon steel, the most commonly used type, possessing good strength and toughness, and relatively low cost. The bolt body 1 includes a shank 2 and a nut 3. The nut 3 is hexagonal, facilitating rotation with a wrench for easy assembly and disassembly of the bolt body 1. The shank 2 has external threads 21 on its surface. One end of the shank 2 is fixedly welded with a compression block 22, which is cylindrical in shape and made of metal. The hardness of the compression block 22 is lower than that of the shank 2. The compression block 22 is made of weldable metals such as iron. The compression block 22 will deform under the pressure of the shank 2. The increased outer diameter of the rod body 2 improves its anti-loosening function. The other end of the rod body 2 is fixedly connected to the surface of the nut 3. One end of the nut 3 has a first groove 31, and the bottom of the first groove 31 has a second groove 32. Both the first groove 31 and the second groove 32 are hexagonal. One end of the nut 3 is fitted with an anti-vibration mechanism 5. The anti-vibration mechanism 5 includes a metal washer 51. The middle position of the metal washer 51 has a mounting hole 53. The mounting hole 53 is hexagonal in shape. The inner wall of the mounting hole 53 is slidably connected to the surface of the nut 3. The metal washer 51 rotates synchronously with the nut 3 through the mounting hole 53, which makes it easy to rotate the bolt by rotating the metal washer 51 with a wrench.

[0020] A rubber pad 54 is movably connected to the surface of the metal pad 51. A boss 55 is pre-set on the surface of the rubber pad 54. The side of the boss 55 is movably connected to the inner wall of the mounting hole 53. The rubber pad 54 has a shock-absorbing function. The elasticity of the boss 55 can automatically fix the assembly position of the rubber pad 51 to the metal pad 51. The material of the rubber pad 54 is corrosion-resistant elastic rubber. A center hole 56 is opened in the center of the rubber pad 54. The inner wall of the center hole 56 is movably connected to the surface of the rod 2. The inner diameter of the center hole 56 is smaller than the outer diameter of the rod 2. The installation position on the rod 2 can be fixed by the elasticity.

[0021] The metal washer 51 is made of the same material as the rod body 2. The side of the metal washer 51 is provided with a radially symmetrical plane 52. The plane 52 makes it easy for the wrench to engage the metal washer 51 and has an anti-slip function. The surface of the bolt body 1 is fixedly connected with a high temperature resistant and anti-oxidation coating 4. The high temperature resistant and anti-oxidation coating 4 is made of high temperature alloy coatings such as nickel-based alloys and cobalt-based alloys. It is not only resistant to high temperature, but also has good toughness and wear resistance, which can effectively enhance the high temperature resistance and anti-oxidation performance of the bolt.

[0022] When using this high-temperature resistant and oxidation-resistant bolt, the nut 3 can be rotated clockwise with a wrench, allowing one end of the rod 2 to connect to the threaded hole through the external thread 21. When the compression block 22 contacts the bottom of the threaded hole, it deforms against the bottom of the threaded hole. The deformation of the compression block 22 fills the internal thread groove in the threaded hole, thereby fixing one end of the rod 2. At the same time, after the rod 2 is tightened, the nut 3 compresses the metal washer 51, and the metal washer 51 compresses the rubber pad 54. The rubber pad 54 generates compressive elasticity, which in turn increases the bolt's anti-vibration and loosening performance through both the rubber pad 54 and the compression block 22. When it is necessary to disassemble the bolt, different wrenches and nut 3 and metal washer 54 can be used. 1. The first groove 31 and the second groove 32 engage and rotate counterclockwise, causing the rod 2 to rotate counterclockwise. The counterclockwise rotation of the rod 2 causes the deformed extrusion block 22 to be cut into the shape of the threaded hole by the internal thread, and then the threaded hole is removed under the action of the thread. Through the provided nut 3, the first groove 31, the second groove 32 and the metal washer 51, the bolt can be installed and removed with four different sizes of wrenches, which greatly increases the convenience of bolt use. In addition, the extrusion block 22 provided at one end of the rod 2 will deform and increase the outer diameter when it is extruded by the rod 2, which can prevent the bolt from falling off itself and make the bolt connection more stable and effective.

[0023] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A high-temperature resistant and oxidation-resistant bolt, comprising a bolt body (1), characterized in that: The bolt body (1) includes a rod (2) and a nut (3). The surface of the rod (2) has an external thread (21). One end of the rod (2) is fixedly welded with an extrusion block (22). The other end of the rod (2) is fixedly connected to the surface of the nut (3). One end of the nut (3) has a first groove (31). The bottom of the first groove (31) has a second groove (32). Both the first groove (31) and the second groove (32) are hexagonal. One end of the nut (3) is fitted with an anti-vibration mechanism (5).

2. The high-temperature resistant and oxidation-resistant bolt according to claim 1, characterized in that: The anti-seismic mechanism (5) includes a metal gasket (51), and a mounting hole (53) is opened in the middle of the metal gasket (51). The mounting hole (53) is hexagonal in shape, and the inner wall of the mounting hole (53) is slidably connected to the surface of the nut (3).

3. The high-temperature resistant and oxidation-resistant bolt according to claim 2, characterized in that: The surface of the metal gasket (51) is movably connected to a rubber pad (54), and the surface of the rubber pad (54) is pre-set with a boss (55), and the side of the boss (55) is movably connected to the inner wall of the mounting hole (53).

4. The high-temperature resistant and oxidation-resistant bolt according to claim 3, characterized in that: The material of the rubber pad (54) is corrosion-resistant elastic rubber. A central hole (56) is opened in the center of the rubber pad (54). The inner wall of the central hole (56) is movably connected to the surface of the rod (2).

5. The high-temperature resistant and oxidation-resistant bolt according to claim 1, characterized in that: The extrusion block (22) is cylindrical in shape and is made of metal material. The material hardness of the extrusion block (22) is lower than that of the rod (2).

6. The high-temperature resistant and oxidation-resistant bolt according to claim 2, characterized in that: The metal pad (51) is made of the same material as the rod (2), and the side of the metal pad (51) is provided with a radially symmetrical plane (52).

7. The high-temperature resistant and oxidation-resistant bolt according to claim 1, characterized in that: The surface of the bolt body (1) is fixedly connected with a high-temperature resistant and anti-oxidation coating (4).

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