Improved fastening bolt assembly

Abstract

The utility model discloses an improved fastening bolt assembly which comprises a first screw rod, the outer surface of the first screw rod is in threaded connection with a nut, the left end of the outer surface of the first screw rod is in threaded connection with an anti-skid plate, and the left side and the right side of the anti-skid plate and the left side of the nut are fixedly connected with sawtooth plates. The left side of the first screw is fixedly connected with a first nut, the right side of the first nut is fixedly connected with an anti-skid protrusion, screw holes are formed in the inner surfaces of the first nut, the nut and the anti-skid plate, the inner surfaces of the screw holes are in threaded connection with a second screw, and the left side of the second screw is fixedly connected with a second nut; a hexagonal inserting hole is formed in the inner surface of the second nut, and a reserved groove is formed in the position, corresponding to the screw hole, of the left side of the first nut. Through the inner protection layer, the chlorosulfonated polyethylene coating and the high chlorinated polyethylene coating, the overall corrosion resistance of the nut, the sawtooth plate, the anti-skid protrusions, the first screw rod and the first nut cap can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an improved fastening bolt assembly. Background Art

[0002] Fastening bolt assemblies are commonly found in machinery, electrical appliances, and buildings. They include bolts and nuts, which are used to fasten and connect two parts with through holes. They are widely used in various types of mechanical equipment and production devices.

[0003] For example, Chinese patent CN 208057651 U states in its specification that the first screw is first inserted into the connecting hole of the machine to be connected, and then a serrated plate is installed on the extended portion of the first screw, and then a nut is assembled. The nut is tightened using a tool, and the anti-loosening portion is deformed by the tightening force of the nut, which plays a good buffering role, thereby enhancing the pre-tightening force between the nut and the first screw. The serrated plate and the nut are both provided with a serrated anti-loosening structure, which enhances the fixing strength between the serrated plate and the nut and further plays an anti-loosening role.

[0004] However, the existing fastening bolt assembly lacks a wear-resistant and corrosion-resistant protection mechanism, resulting in poor overall wear resistance and corrosion resistance, thereby reducing its service life. To this end, we propose an improved fastening bolt assembly. Utility Model Content

[0005] The purpose of the present utility model is to provide an improved fastening bolt assembly to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an improved fastening bolt assembly, comprising a first screw, an outer surface of the first screw is threadedly connected to a nut, and the left end of the outer surface of the first screw is threadedly connected to an anti-slip plate, the left and right sides of the anti-slip plate and the left side of the nut are fixedly connected to a serrated plate, the left side of the first screw is fixedly connected to a first nut, and the right side of the first nut is fixedly connected to an anti-slip protrusion, the first nut, the nut and the inner surface of the anti-slip plate are all provided with a screw hole, the inner surface of the screw hole is threadedly connected to a second screw, the left side of the second screw is fixedly connected to a second nut, the inner surface of the second nut is provided with a hexagonal socket, and a reserved groove is provided on the left side of the first nut and at a corresponding position of the screw hole, the surfaces of the nut, the serrated plate, the anti-slip protrusion, the first screw and the first nut are all provided with an inner protective layer, and the inner protective layer includes a chlorosulfonated polyethylene coating and a highly chlorinated polyethylene coating, the other side of the inner protective layer is provided with an outer protective layer, and the outer protective layer includes an aluminum oxide coating and a tungsten carbide coating.

[0007] Preferably, the chlorosulfonated polyethylene coating is applied to the surfaces of the nut, the serrated plate, the anti-slip protrusion, the first screw and the first nut, and the highly chlorinated polyethylene coating is applied to the other side of the chlorosulfonated polyethylene coating.

[0008] Preferably, the chlorosulfonated polyethylene coating and the highly chlorinated polyethylene coating have the same thickness, and the thickness of the highly chlorinated polyethylene coating is 80 to 150 microns.

[0009] Preferably, the aluminum oxide coating is coated on the other side of the high-chlorinated polyethylene coating, and the tungsten carbide coating is coated on the other side of the aluminum oxide coating.

[0010] Preferably, the aluminum oxide coating and the tungsten carbide coating have the same thickness, and the thickness of the tungsten carbide coating is one hundred to two hundred microns.

[0011] Preferably, the anti-slip protrusion is made of nitrile rubber and has a truncated cone-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model can improve the corrosion resistance of the nut, the serrated plate, the anti-slip protrusion, the first screw and the first nut as a whole through the inner protective layer, the chlorosulfonated polyethylene coating and the highly chlorinated polyethylene coating.

[0014] 2. The utility model can improve the wear resistance of the nut, the serrated plate, the anti-slip protrusion, the first screw and the first nut as a whole through the outer protective layer, the aluminum oxide coating and the tungsten carbide coating.

[0015] 3. The utility model can improve the fastening ability by means of the reserved groove 8, the second screw rod 9, the second nut 10, the hexagonal socket 11, the anti-slide plate 12 and the screw hole 13. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the inner protective layer, the outer protective layer and the first screw of the utility model;

[0018] Figure 3 This is a schematic diagram of the inner protective layer structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the outer protective layer structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the hexagonal socket structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the reserved groove structure of the utility model.

[0022] In the figure: nut 1, serrated plate 2, anti-slip protrusion 3, first screw 4, first nut 5, inner protective layer 6, chlorosulfonated polyethylene coating 61, highly chlorinated polyethylene coating 62, outer protective layer 7, alumina coating 71, tungsten carbide coating 72, reserved groove 8, second screw 9, second nut 10, hexagonal socket 11, anti-slip plate 12, screw hole 13. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The nut 1, serrated plate 2, anti-slip protrusion 3, first screw 4, first nut 5, inner protective layer 6, chlorosulfonated polyethylene coating 61, highly chlorinated polyethylene coating 62, outer protective layer 7, aluminum oxide coating 71 and tungsten carbide coating 72 components of the present application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0025] Example 1:

[0026] See also Figures 1-6In order to improve the corrosion resistance of the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw rod 4 and the first nut 5 as a whole, the present embodiment provides the following technical solutions, which specifically disclose: comprising a first screw rod 4, the outer surface of the first screw rod 4 is threadedly connected to the nut 1, and the left end of the outer surface of the first screw rod 4 is threadedly connected to the anti-slip plate 12, the left and right sides of the anti-slip plate 12 and the left side of the nut 1 are fixedly connected to the serrated plate 2, the left side of the first screw rod 4 is fixedly connected to the first nut 5, and the first screw rod 4 is fixedly connected to the first nut 5. The right side of the cap 5 is fixedly connected with an anti-slip protrusion 3, and the inner surfaces of the first nut 5, the nut 1 and the anti-slip plate 12 are all provided with a screw hole 13, and the inner surface of the screw hole 13 is threadedly connected with a second screw rod 9, and the left side of the second screw rod 9 is fixedly connected with a second nut 10, and the inner surface of the second nut 10 is provided with a hexagonal socket 11, and the left side of the first nut 5 and the corresponding position of the screw hole 13 are provided with a reserved groove 8, and the surface of the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5 are The surfaces are all provided with an inner protective layer 6, and the inner protective layer 6 includes a chlorosulfonated polyethylene coating 61 and a high-chlorinated polyethylene coating 62. The chlorosulfonated polyethylene coating 61 is applied to the surface of the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5, and the high-chlorinated polyethylene coating 62 is applied to the other side of the chlorosulfonated polyethylene coating 61. The thickness of the chlorosulfonated polyethylene coating 61 and the high-chlorinated polyethylene coating 62 is the same, and the thickness of the high-chlorinated polyethylene coating 62 is eighty to one hundred and fifty microns. The material of the anti-slip protrusion 3 is nitrile rubber, and the anti-slip protrusion 3 is a truncated cone structure. The high-chlorinated polyethylene coating 62 can perform a first layer of corrosion protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5 after the alumina coating 71 is damaged. The chlorosulfonated polyethylene coating 61 can perform a second layer of corrosion protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5 after the high-chlorinated polyethylene coating 62 is damaged.

[0027] Example 2:

[0028] See also Figure 2 and Figure 4In order to improve the overall wear resistance of the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5, this embodiment provides the following technical solutions, which specifically disclose: an outer protective layer 7 is provided on the other side of the inner protective layer 6, and the outer protective layer 7 includes an aluminum oxide coating 71 and a tungsten carbide coating 72. The aluminum oxide coating 71 is applied on the other side of the high-chlorinated polyethylene coating 62, and the tungsten carbide coating 72 is applied on the other side of the aluminum oxide coating 71. The thickness of the aluminum oxide coating 71 and the tungsten carbide coating 72 is the same, and the thickness of the tungsten carbide coating 72 is one hundred to two hundred microns. The tungsten carbide coating 72 can perform a first layer of wear-resistant protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5. After the tungsten carbide coating 72 is damaged, the aluminum oxide coating 71 can perform a second layer of wear-resistant protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5.

[0029] The working principle of the present invention is as follows: screw the second screw 9 into the screw hole 13, and insert the external hexagonal wrench into the hexagonal socket 11, so that the second screw 9 can thread the first nut 5, the anti-slip plate 12 and the nut 1, further improving the fastening ability. The tungsten carbide coating 72 can perform the first layer of wear-resistant protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5. The aluminum oxide coating 71 can be used to protect the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw 4 and the first nut 5 after the tungsten carbide coating 72 is damaged. 2. The anti-slip protrusion 3, the first screw rod 4 and the first nut 5 are subjected to a second layer of wear-resistant protection treatment. At the same time, the high-chlorinated polyethylene coating 62 can perform a first layer of corrosion-resistant protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw rod 4 and the first nut 5 after the alumina coating 71 is damaged. The chlorosulfonated polyethylene coating 61 can perform a second layer of corrosion-resistant protection treatment on the nut 1, the serrated plate 2, the anti-slip protrusion 3, the first screw rod 4 and the first nut 5 after the high-chlorinated polyethylene coating 62 is damaged.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved fastening bolt assembly, comprising a first screw rod (4), characterized in that: The outer surface of the first screw rod (4) is threadedly connected to a nut (1), and the left end of the outer surface of the first screw rod (4) is threadedly connected to an anti-slide plate (12), the left and right sides of the anti-slide plate (12) and the left side of the nut (1) are fixedly connected to a serrated plate (2), the left side of the first screw rod (4) is fixedly connected to a first nut (5), and the right side of the first nut (5) is fixedly connected to an anti-slip protrusion (3), the inner surfaces of the first nut (5), the nut (1) and the anti-slide plate (12) are all provided with a screw hole (13), the inner surface of the screw hole (13) is threadedly connected to a second screw rod (9), and the left side of the second screw rod (9) is fixedly connected to A second nut (10) is provided, and a hexagonal socket (11) is provided on the inner surface of the second nut (10). A reserved groove (8) is provided on the left side of the first nut (5) and at a corresponding position of the screw hole (13). The surfaces of the nut (1), the serrated plate (2), the anti-slip protrusion (3), the first screw rod (4) and the first nut (5) are all provided with an inner protective layer (6), and the inner protective layer (6) includes a chlorosulfonated polyethylene coating (61) and a highly chlorinated polyethylene coating (62). The other side of the inner protective layer (6) is provided with an outer protective layer (7), and the outer protective layer (7) includes an aluminum oxide coating (71) and a tungsten carbide coating (72).

2. The improved fastening bolt assembly according to claim 1, characterized in that: The chlorosulfonated polyethylene coating (61) is coated on the surfaces of the nut (1), the serrated plate (2), the anti-slip protrusion (3), the first screw (4) and the first nut (5), and the highly chlorinated polyethylene coating (62) is coated on the other side of the chlorosulfonated polyethylene coating (61).

3. The improved fastening bolt assembly according to claim 1, characterized in that: The thickness of the chlorosulfonated polyethylene coating (61) and the high-chlorinated polyethylene coating (62) are the same, and the thickness of the high-chlorinated polyethylene coating (62) is 80 to 150 microns.

4. The improved fastening bolt assembly according to claim 1, characterized in that: The aluminum oxide coating (71) is coated on the other side of the high-chlorinated polyethylene coating (62), and the tungsten carbide coating (72) is coated on the other side of the aluminum oxide coating (71).

5. The improved fastening bolt assembly according to claim 1, characterized in that: The thickness of the aluminum oxide coating (71) and the tungsten carbide coating (72) are the same, and the thickness of the tungsten carbide coating (72) is one hundred to two hundred microns.

6. The improved fastening bolt assembly according to claim 1, characterized in that: The material of the anti-skid protrusion (3) is nitrile rubber, and the anti-skid protrusion (3) is a truncated cone structure.

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