CN213117062U - Anticorrosive fastener for car - Google Patents
Anticorrosive fastener for car Download PDFInfo
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- CN213117062U CN213117062U CN202021555116.9U CN202021555116U CN213117062U CN 213117062 U CN213117062 U CN 213117062U CN 202021555116 U CN202021555116 U CN 202021555116U CN 213117062 U CN213117062 U CN 213117062U
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- rust
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- gasket
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- stainless steel
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The utility model discloses a fastener technical field's an anticorrosive fastener for car, including the column cap, the welding of column cap bottom has the embolus, the surface of embolus is provided with the screw thread, the inner wall screw thread of screw thread and nut mutually supports, nut and bolt threaded connection, sliding connection has rust-resistant gasket between nut and the column cap, the screw has been seted up at rust-resistant gasket center, rust-resistant gasket is formed by the welding of gasket stainless steel layer and gasket galvanizing coat, install rust-resistant block on the column cap, rust-resistant block is formed by the welding of block stainless steel layer and galvanizing coat, the embolus includes the antirust coat and prevents the fault-tolerant layer, prevent that the fault-tolerant layer welds in the central axis department of antirust coat, the beneficial effects of the: through the rust-resistant block of installing on the column cap and being welded by stainless steel layer and galvanizing coat, be favorable to preventing the column cap corrosion in humid environment, influence the fastening effect of connecting piece, the inside galvanizing coat of rust-resistant block also can delay the corrosion process simultaneously, improves the life of bolt.
Description
Technical Field
The utility model relates to a fastener technical field specifically is an anticorrosive fastener for car.
Background
The bolt is a common fastener, a cylindrical threaded fastener matched with a nut, the bolt consists of a column head and a bolt column (a cylinder with an external thread), and is matched with the nut to be used for tightly connecting two parts with through holes.
The mode that the automobile bolt was only painted through the surface is rust-resistant for the present market is mostly, and after the anti-rust paint on bolt surface fell off, the metal internal surface exposed in the atmosphere, when touchhing moist steam, the bolt corrosion was with higher speed, can weaken the fastening effect of the connecting piece that the bolt fastened, caused the potential safety hazard easily. Accordingly, one skilled in the art has provided a corrosion resistant fastener for automobiles to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anticorrosive fastener for car to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an anticorrosive fastener for car, includes the column cap, the welding of column cap bottom has the embolus, the surface of embolus is provided with the screw thread, the inner wall screw thread of screw thread and nut is mutually supported, nut and bolt threaded connection, sliding connection has rust-resistant gasket between nut and the column cap, the screw has been seted up at rust-resistant gasket center, rust-resistant gasket is formed by the welding of gasket stainless steel layer and gasket galvanizing coat, install rust-resistant block on the column cap, rust-resistant block is formed by the welding of block stainless steel layer and galvanizing coat, the embolus includes the antirust coat and prevents the fault line, prevent that the fault line welds in the central axis department of antirust coat.
As a further aspect of the present invention: and iron red phenolic paint is coated on the surfaces of the antirust gasket, the antirust cap and the nut.
As a further aspect of the present invention: the rust-proof cap is internally provided with a mounting hole, and the rust-proof cap is tightly matched with the column cap through the mounting hole.
As a further aspect of the present invention: the anti-rust layer of the stud is made of 301 stainless steel, and the anti-fault layer is made of low alloy steel.
As a further aspect of the present invention: the material of lid cap stainless steel layer and gasket stainless steel layer is 301 stainless steel, the material of lid cap galvanizing coat and gasket galvanizing coat is metallic zinc.
As a further aspect of the present invention: the cap zinc coating and the gasket zinc coating are both covered with metal zinc on the surface of the stainless steel layer by adopting a hot galvanizing process.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the rust-resistant block of installing on the column cap and being welded by stainless steel layer and galvanizing coat, be favorable to preventing that the column cap from corrosion in humid environment, influence the fastening effect of connecting piece, the inside galvanizing coat of rust-resistant block also can delay the corrosion process simultaneously, improves the life of bolt.
2. The utility model discloses in, through at rust-resistant block and rust-resistant gasket surface coating iron oxide red phenolic paint, be favorable to completely cutting off moist steam outside the fastener surface, provide the inseparable rust-resistant protective layer of one deck for the fastener.
3. The utility model discloses in, through the antirust coat of embolus and the composite construction of anti-fault layer, outer antirust coat passes through stainless steel, can improve the anti-rust ability of embolus, and the material of low alloy steel is passed through on the anti-breaking layer of inlayer, has improved the load strength of bolt, prevents to take place cracked condition under the effect of high pretightning force.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a middle anti-rust gasket of the present invention;
FIG. 4 is a cross-sectional view of the anti-rust gasket of the present invention;
fig. 5 is a schematic structural view of the middle anti-rust cap of the present invention.
In the figure: 1. a column cap; 2. a stud; 3. an antirust gasket; 4. a nut; 5. a thread; 6. an antirust cap; 7. a capped stainless steel layer; 8. a cap zinc coating; 9. a rust-proof layer; 10. preventing faults; 11. a screw hole; 12. a stainless steel layer of the gasket; 13. a gasket zinc coating; 14. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-5, in the embodiment of the present invention, an anticorrosive fastener for automobiles, including column cap 1, the welding of column cap 1 bottom has stud 2, the surface of stud 2 is provided with screw thread 5, the inner wall screw thread of screw thread 5 and nut 4 mutually supports, nut 4 and bolt threaded connection, sliding connection has rust-resistant gasket 3 between nut 4 and the column cap 1, screw 11 has been seted up at rust-resistant gasket 3 center, rust-resistant gasket 3 is formed by welding of gasket stainless steel layer 12 and gasket galvanizing coat 13, install rust-resistant block 6 on the column cap 1, rust-resistant block 6 is formed by welding of block stainless steel layer 7 and block galvanizing coat 8, stud 2 includes antirust coat 9 and anti-break layer 10, anti-break layer 10 welds in antirust coat 9's the central axis department.
The surfaces of the antirust gasket 3, the antirust cap 6 and the nut 4 are coated with iron oxide red phenolic paint, so that moisture and water vapor can be isolated from the surface of the fastener, and a tight antirust protective layer is provided for the fastener; the inner part of the anti-rust cap 6 is provided with a mounting hole 14, the anti-rust cap 6 is tightly matched with the column cap 1 through the mounting hole 14, the anti-rust layer 9 of the stud 2 is made of 301 stainless steel, the anti-breaking layer 10 is made of low alloy steel, the anti-rust layer 9 on the outer layer can improve the anti-rust capability of the stud 2 through the stainless steel, and the anti-breaking layer 10 on the inner layer is made of the low alloy steel, so that the load strength of the bolt is improved, and the situation of fracture under the action of high pre-tightening force is prevented; the cap stainless steel layer 7 and the gasket stainless steel layer 12 are both made of 301 stainless steel, the cap galvanized layer 8 and the gasket galvanized layer 13 are both made of metal zinc, and the cap galvanized layer 8 and the gasket galvanized layer 13 both adopt a hot galvanizing process to cover the metal zinc on the surface of the stainless steel layer.
The utility model discloses a theory of operation is: when the utility model is used, firstly the rust-proof gasket 3 is connected with the bolt post 2 of the bolt through the screw hole 11 in a sliding way, then the bolt post 2 of the bolt passes through the screw hole 11 opened on the connecting piece, the nut 4 is connected with the bolt thread through the thread 5 arranged on the bolt post 2, the bolt is tightened, and proper pretightening force is kept, finally the rust-proof cap 6 is tightly connected with the column cap 1 of the bolt through the mounting hole 14, the installation can be completed, when the fastener is in a humid environment, the iron red phenolic paint on the surfaces of the rust-proof cap 6 and the rust-proof gasket 3 isolates the internal metal structure from the humid water vapor, the fastener is protected from being corroded, when the iron red phenolic paint on the surfaces of the rust-proof cap 6 and the rust-proof gasket 3 is damaged due to scraping and the like, when the internal metal structure is exposed, the cap stainless steel layer 7 and the gasket stainless steel layer 12 of the rust-proof cap, meanwhile, the cap zinc coating 8 and the gasket zinc coating 13 are more active than iron in terms of chemical properties of zinc on the surfaces, and the zinc coating starts to corrode firstly, so that the corrosion time of the stainless steel layer is greatly prolonged, the service life of the bolt is prolonged, and if the service time is too long, the antirust cap 6 on the column cap 1 can be detached, a new antirust cap 6 is replaced, and the service life of the bolt is prolonged again.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an anticorrosive fastener for car, includes column cap (1), its characterized in that: the bottom end of the column cap (1) is welded with a bolt column (2), the outer surface of the bolt column (2) is provided with a thread (5), the threads (5) are matched with the threads on the inner wall of the nut (4), the nut (4) is connected with the bolt threads, an antirust gasket (3) is connected between the nut (4) and the column cap (1) in a sliding way, the center of the rust-proof gasket (3) is provided with a screw hole (11), the rust-proof gasket (3) is formed by welding a gasket stainless steel layer (12) and a gasket zinc coating (13), the column cap (1) is provided with an antirust cap (6), the antirust cap (6) is formed by welding a cap stainless steel layer (7) and a cap zinc coating (8), the bolt column (2) comprises an anti-rust layer (9) and a breaking-proof layer (10), the anti-fault layer (10) is welded at the central axis of the anti-rust layer (9).
2. The corrosion-resistant fastener for the automobile as claimed in claim 1, wherein: and iron oxide red phenolic paint is coated on the surfaces of the antirust gasket (3), the antirust cap (6) and the nut (4).
3. The corrosion-resistant fastener for the automobile as claimed in claim 1, wherein: the rust-proof cap (6) is internally provided with a mounting hole (14), and the rust-proof cap (6) is tightly matched with the column head (1) through the mounting hole (14).
4. The corrosion-resistant fastener for the automobile as claimed in claim 1, wherein: the anti-rust layer (9) of the stud (2) is made of 301 stainless steel, and the anti-fault layer (10) is made of low alloy steel.
5. The corrosion-resistant fastener for the automobile as claimed in claim 1, wherein: the cap stainless steel layer (7) and the gasket stainless steel layer (12) are both made of 301 stainless steel, and the cap zinc coating layer (8) and the gasket zinc coating layer (13) are both made of metal zinc.
6. The corrosion-resistant fastener for the automobile as claimed in claim 5, wherein: the cap zinc coating (8) and the gasket zinc coating (13) are coated with metal zinc on the surface of the stainless steel layer by adopting a hot galvanizing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021555116.9U CN213117062U (en) | 2020-07-31 | 2020-07-31 | Anticorrosive fastener for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021555116.9U CN213117062U (en) | 2020-07-31 | 2020-07-31 | Anticorrosive fastener for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213117062U true CN213117062U (en) | 2021-05-04 |
Family
ID=75681943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021555116.9U Active CN213117062U (en) | 2020-07-31 | 2020-07-31 | Anticorrosive fastener for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213117062U (en) |
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2020
- 2020-07-31 CN CN202021555116.9U patent/CN213117062U/en active Active
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