Zinc impregnation process Japanese car door handle corrosion-resistant bolt

Abstract

The utility model provides a corrosion-resistant bolt for a Zinc impregnation process Japanese car door handle, which belongs to the technical field of bolts and comprises a bolt body, a hexagonal hole is formed on the surface of the end part of the bolt body, and a shell component and a coating component are arranged on the outer side of the bolt body. By means of the shell assembly, the shell in the forward rotation state seals the opening of the hexagonal hole, the shell in the reverse rotation state opens the opening of the hexagonal hole, and the hexagonal hole of the bolt body is protected; the situation that impurities easily adhere to the interior of the hexagonal hole exposed outside, and consequently disassembly is inconvenient is avoided, through the arranged coating assembly, the corrosion resistance and the abrasion resistance of the bolt body are improved through a zinc impregnation layer, and the mechanical strength, the tensile strength and the pressure resistance of the bolt body are improved through an epoxy resin layer; and the polyurethane layer improves the aging resistance and heat resistance of the bolt body, so that the corrosion resistance of the bolt body is effectively improved, and the service life of the bolt body is effectively prolonged through the structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, specifically, relates to a kind of zinc infiltration process Japanese car door handle corrosion-resistant bolt. BACKGROUND

[0002] Door handle fixing structure is generally door handle pedestal, by setting pre-fixing structure on door handle pedestal, first, pre-fixing structure is connected on car door sheet metal, then door handle is connected on the pre-fixing structure of door handle pedestal by bolt, then car door handle installation is completed.

[0003] The existing Japanese car door handle bolt is made of ordinary steel, and the surface treatment method is electroplated zinc, etc. Although it has certain corrosion resistance, it is still prone to rust in harsh environments, affecting the service life. After the bolt is tightened into the screw hole, the hexagonal hole formed on the surface of the end head of the bolt is always exposed to the outside world. After a period of time, some impurities will be attached and accumulated in the hexagonal hole, making it more inconvenient to use the screw to disassemble and unscrew the bolt through the hexagonal hole. Therefore, we improve it and propose a zinc infiltration process Japanese car door handle corrosion-resistant bolt. SUMMARY

[0004] The utility model aims at: in view of the existing Japanese car door handle bolt of the present existence corrosion resistance is lower, and the hexagonal hole inside that long-term exposure to the outside world will be attached and accumulated some impurities.

[0005] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0006] A zinc infiltration process Japanese car door handle corrosion-resistant bolt is provided to improve the above-mentioned problems.

[0007] The utility model is as follows:

[0008] It comprises a bolt body, a hexagonal hole is formed on the surface of the end head of the bolt body, and an outer shell assembly and a coating assembly are arranged on the outer side of the bolt body.

[0009] The outer shell assembly comprises an outer shell, a rotating part, a clamping groove and a clamping block.

[0010] The rotating part is rotatably connected to the end head inner cavity of the bolt body, the outer shell is arranged on the end of the rotating part, the clamping groove is opened on the surface of the end head of the bolt body, and the clamping block is arranged on one side of the outer shell.

[0011] As a preferred technical scheme of the utility model, the clamping block is in elastic structure, and the clamping block and the clamping groove are engaged in alignment state, and the clamping block and the clamping groove are used for limiting the position of the outer shell in clamping state.

[0012] As the utility model discloses preferably technical scheme, the shell for closing the opening of the hexagonal hole in the positive rotation state, and the shell is used for opening the opening of the hexagonal hole in the reverse rotation state.

[0013] As the utility model discloses preferably technical scheme, the coating assembly includes zinc infiltration layer, epoxy resin layer and polyurethane layer, and the zinc infiltration layer, epoxy resin layer and polyurethane layer are all coated on the surface of the bolt body.

[0014] As the utility model discloses preferably technical scheme, the zinc infiltration layer is used to improve the corrosion resistance and wear resistance of the bolt body.

[0015] As the utility model discloses preferably technical scheme, the epoxy resin layer is used to improve the mechanical strength, tensile and compression resistance of the bolt body.

[0016] As the utility model discloses preferably technical scheme, the polyurethane layer is used to improve the aging resistance and heat resistance of the bolt body.

[0017] Compared with the prior art, the utility model has the beneficial effects of:

[0018] In the scheme of the utility model,

[0019] 1. By setting the shell assembly, the opening of the hexagonal hole is closed in the positive rotation state of the shell, and the opening of the hexagonal hole is opened in the reverse rotation state of the shell, thereby achieving the protection effect of the hexagonal hole of the bolt body, avoiding the situation that the hexagonal hole exposed to the outside is easy to adhere to impurities, causing the disassembly inconvenience.

[0020] 2. By setting the coating assembly, the zinc infiltration layer improves the corrosion resistance and wear resistance of the bolt body, the epoxy resin layer improves the mechanical strength, tensile and compression resistance of the bolt body, and the polyurethane layer improves the aging resistance and heat resistance of the bolt body, thereby effectively improving the corrosion resistance and service life of the bolt body through the above structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structure schematic view of a zinc infiltration process Japanese car door handle corrosion-resistant bolt is provided for the utility model;

[0022] Figure 2 A shell assembly structure schematic view of a zinc infiltration process Japanese car door handle corrosion-resistant bolt is provided for the utility model;

[0023] Figure 3 A coating assembly structure schematic view of a zinc infiltration process Japanese car door handle corrosion-resistant bolt is provided for the utility model;

[0024] Figure 4The utility model provides a kind of zinc alloying process Japanese car door handle corrosion-resistant bolt Figure 3 The A structure schematic diagram in the utility model.

[0025] Indicated in the figure:

[0026] 1, bolt body;2, shell assembly;201, shell;202, rotating piece;203, clamping groove;204, clamping block;3, coating assembly;301, zinc alloying layer;302, epoxy resin layer;303, polyurethane layer;4, hexagonal hole. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all.

[0028] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0029] It should be noted that the embodiments and features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0030] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] As Figures 1-4 shown, the present embodiment proposes a kind of zinc alloying process Japanese car door handle corrosion-resistant bolt, including bolt body 1, the end head surface of bolt body 1 is shaped with hexagonal hole 4, the outside of bolt body 1 is provided with shell assembly 2 and coating assembly 3;

[0032] Shell assembly 2 includes shell 201, rotating piece 202, clamping groove 203 and clamping block 204.

[0033] Rotating piece 202 is rotationally connected to the end head inner cavity of bolt body 1, shell 201 is arranged at the end of rotating piece 202, clamping groove 203 is opened on the end head surface of bolt body 1, and clamping block 204 is arranged on one side of shell 201.

[0034] As Figure 4As shown, the locking block 204 has an elastic structure, and in the aligned state, the locking block 204 engages with the locking slot 203. The engaged state of the locking block 204 and the locking slot 203 is used to limit the position of the outer shell 201. When the outer shell 201 is rotated forward about the rotating member 202, the forward-rotating outer shell 201 causes the locking block 204 to align with the locking slot 203, and the engaged state of the locking block 204 and the locking slot 203 limits the position of the outer shell 201.

[0035] like Figure 2 As shown, the outer casing 201 in the forward rotation state is used to close the opening of the hexagonal hole 4, and the outer casing 201 in the reverse rotation state is used to open the opening of the hexagonal hole 4. By closing the opening of the hexagonal hole 4 with the outer casing 201 in the forward rotation state, when it is necessary to disassemble the bolt body 1, as described above, the locking block 204 and the locking groove 203 are separated, and the locking block 204 and the locking groove 203 in the separated state release the position limit of the outer casing 201, and then the outer casing 201 in the reverse rotation state opens the opening of the hexagonal hole 4.

[0036] like Figure 3 As shown, the coating assembly 3 includes a zinc diffusion layer 301, an epoxy resin layer 302, and a polyurethane layer 303, all of which are coated on the surface of the bolt body 1. By providing the zinc diffusion layer 301, epoxy resin layer 302, and polyurethane layer 303 on the surface of the bolt body 1, the zinc diffusion layer 301 improves the corrosion resistance and wear resistance of the bolt body 1 because zinc is diffused into the surface of the bolt body 1 through a thermal diffusion process. The epoxy resin layer 302 forms a three-dimensional network structure after curing, resulting in high bonding strength and good durability, thus improving the mechanical strength, tensile strength, and compressive strength of the bolt body 1. The polyurethane layer 303 has a heat resistance temperature range of 80-120℃, thus improving the aging resistance and heat resistance of the bolt body 1. Therefore, the above structure effectively improves the corrosion resistance and service life of the bolt body 1.

[0037] like Figure 3 As shown, the zinc diffusion layer 301 is used to improve the corrosion resistance and wear resistance of the bolt body 1. Since the zinc diffusion layer 301 is applied by thermal diffusion process to diffuse zinc into the surface of the bolt body 1, the zinc diffusion layer 301 can improve the corrosion resistance and wear resistance of the bolt body 1.

[0038] like Figure 3 As shown, the epoxy resin layer 302 is used to improve the mechanical strength, tensile strength, and compressive strength of the bolt body 1. Since the epoxy resin layer 302 forms a three-dimensional network structure after curing, it has high bonding strength and good durability, thus improving the mechanical strength, tensile strength, and compressive strength of the bolt body 1.

[0039] As Figure 3 shown, the polyurethane layer 303 is used to improve the aging resistance and heat resistance of the bolt body 1. Since the heat resistance temperature range of the polyurethane layer 303 is 80-120℃, the polyurethane layer 303 can improve the aging resistance and heat resistance of the bolt body 1.

[0040] Specifically, the zinc-penetrated corrosion-resistant bolt for a door handle of a Japanese vehicle is used as follows: after the bolt body 1 is tightly installed on the door handle, the shell 201 is rotated forward around the rotating part 202, the shell 201 in the forward rotation state drives the clamping block 204 to align with the clamping groove 203, the clamping block 204 in the clamping state limits the position of the shell 201, and the shell 201 in the forward rotation state closes the opening of the hexagonal hole 4. When the bolt body 1 needs to be disassembled, the clamping block 204 is separated from the clamping groove 203, the clamping block 204 in the separated state releases the position limitation of the shell 201, and the shell 201 in the reverse rotation state opens the opening of the hexagonal hole 4, thereby achieving the protection effect of the hexagonal hole 4 of the bolt body 1 and avoiding the situation that the hexagonal hole 4 exposed to the outside is easily attached with impurities, causing inconvenience in disassembly.

[0041] By arranging the zinc-penetrated layer 301, the epoxy resin layer 302 and the polyurethane layer 303 on the surface of the bolt body 1, the zinc-penetrated layer 301 can improve the corrosion resistance and wear resistance of the bolt body 1 by penetrating zinc elements into the surface of the bolt body 1 through the heat diffusion process, the epoxy resin layer 302 can improve the mechanical strength, tensile and compression resistance of the bolt body 1 by forming a three-dimensional network structure after curing, and the polyurethane layer 303 can improve the aging resistance and heat resistance of the bolt body 1 by having a heat resistance temperature range of 80-120℃, thereby effectively improving the corrosion resistance and service life of the bolt body 1 through the above structure.

[0042] All the technical features in the embodiment can be freely combined according to actual needs.

[0043] The above embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other ways without departing from the technical scheme concept. Any obvious replacement within the scope of the utility model is within the protection scope of the utility model.

Claims

1. A zinc-penetrated corrosion-resistant bolt for a door handle of a Japanese vehicle, comprising a bolt body (1), characterized in that, The end head surface of the bolt body (1) is formed with a hexagonal hole (4), and the outer side of the bolt body (1) is provided with a shell assembly (2) and a coating assembly (3). The shell assembly (2) comprises a shell (201), a rotating piece (202), a clamping groove (203) and a clamping block (204). The rotating piece (202) is rotationally connected to the inner cavity of the end head of the bolt body (1), the shell (201) is arranged at the end of the rotating piece (202), the clamping groove (203) is arranged on the surface of the end head of the bolt body (1), and the clamping block (204) is arranged on one side of the shell (201).

2. A zinc-diffusion process fastener for a door handle of a Japanese vehicle, according to claim 1, wherein The clamping block (204) is in an elastic structure, and the clamping block (204) and the clamping groove (203) are clamped in an aligned state, and the clamping block (204) and the clamping groove (203) are used for limiting the position of the shell (201) in a clamped state.

3. A zinc-diffusion process fastener for a door handle of a Japanese vehicle, according to claim 1, wherein The shell (201) in a forward rotation state is used for closing the opening of the hexagonal hole (4), and the shell (201) in a reverse rotation state is used for opening the opening of the hexagonal hole (4).

4. A zinc-diffusion process fastener for a door handle of a Japanese vehicle, according to claim 1, wherein The coating assembly (3) comprises a zinc infiltration layer (301), an epoxy resin layer (302) and a polyurethane layer (303), and the zinc infiltration layer (301), the epoxy resin layer (302) and the polyurethane layer (303) are coated on the surface of the bolt body (1).

5. A zinc-diffusion process fastener for a handle of a vehicle door of a Japanese automobile, according to claim 4, wherein The zinc infiltration layer (301) is used for improving the corrosion resistance and wear resistance of the bolt body (1).

6. A zinc-diffusion process fastener for a handle of a vehicle door of a Japanese automobile, according to claim 4, wherein The epoxy resin layer (302) is used for improving the mechanical strength, tensile and compressive resistance of the bolt body (1).

7. A zinc-diffusion process fastener for a door handle of a Japanese vehicle, according to claim 4, wherein The polyurethane layer (303) is used for improving the aging resistance and heat resistance of the bolt body (1).

Images