CN217002597U

CN217002597U - Corrosion-resistant and oxidation-resistant high-strength bolt

Info

Publication number: CN217002597U
Application number: CN202122289201.6U
Authority: CN
Inventors: 何美萍
Original assignee: Hangzhou Hualing Steel Structure High Strength Bolt Co ltd
Current assignee: Hangzhou Hualing Steel Structure High Strength Bolt Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-07-19
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a corrosion-resistant oxidation-resistant high-strength bolt which comprises a nut and a screw, wherein the nut is fixedly connected with the screw, the bottom of the nut is fixedly connected with a gasket, the upper end of the gasket is fixedly connected with an outer cap, and an inner cavity of the nut is provided with a limiting mechanism; the utility model relates to the technical field of bolts. This corrosion-resistant anti-oxidation's high strength bolt, pass the joint groove through the equipment of using with the mutual adaptation of nut, rotate the equipment, make the edge of equipment inlay establish with the atress rotate the inslot, through the rotational positioning pole, it slides to joint inslot side to drive to resist the fixture block, and the surface that resists the fixture block is provided with the arch, thereby the realization is spacing to the resisting of equipment, stop gear through setting up, can effectually fix a position the fastening to equipment, can effectually protect the head of bolt, prevent that the head of bolt can appear warping smooth silk, can't carry out the board to the bolt and twist the operation.

Description

Corrosion-resistant and oxidation-resistant high-strength bolt

Technical Field

The utility model relates to the technical field of bolts, in particular to a corrosion-resistant oxidation-resistant high-strength bolt.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) is matched with a nut and used for fastening and connecting two parts with through holes, and the connection form is called bolt connection.

The intensity and the anticorrosion effect of current bolt are relatively poor, easily break off and receive external corrosive substance to corrode in the use, can not satisfy people's user demand to the head of bolt is the in-process commonly used for a long time, and the head of bolt can appear warping smooth silk, can't carry out the board to the bolt and twist the operation.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a corrosion-resistant oxidation-resistant high-strength bolt, which solves the problems that the head of the bolt of the existing bolt is deformed and slides when in use, the bolt cannot be screwed, the strength and the corrosion-resistant effect of the existing bolt are poor, and the existing bolt is easy to break and is corroded by external corrosive substances during use.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a corrosion-resistant oxidation-resistant high-strength bolt comprises a nut and a screw, wherein the nut is fixedly connected with the screw, a gasket is fixedly connected to the bottom of the nut, an outer cap is fixedly connected to the upper end of the gasket, and a limiting mechanism is arranged in an inner cavity of the nut; the limiting mechanism comprises a placing groove formed in the nut, sliding grooves are formed in the upper end and the lower end of the placing groove, a resisting clamping block is arranged in the placing groove, a sliding block is fixedly connected to the upper end and the lower end of the resisting clamping block, the resisting clamping block is located in the sliding grooves through the sliding block and is in sliding connection with the nut, a positioning rod is rotatably connected to the outer wall of one side of the resisting clamping block, and the other end of the positioning rod penetrates through the nut, the outer cap and a knob fixedly connected with the positioning rod.

Preferably, the top of the nut is provided with a clamping groove, and one side of the clamping groove is provided with a stress rotating groove.

Preferably, the size of the resisting clamping block is matched with that of the clamping groove, the surface of the inner side end of the resisting clamping block is a curved surface, and a protrusion is arranged on the surface.

Preferably, screw holes are formed in two sides of the gasket, and screws are inserted into the screw holes.

Preferably, the outer surface of the screw rod is provided with threads, the threads and the screw rod are integrally designed, and the bottom end of each thread is fixedly connected with a column base.

Preferably, the screw rod includes the basic unit, the surface fixedly connected with high strength layer of basic unit, high strength layer includes maraging steel layer, alloy quenching and tempering steel layer and low alloy structure steel layer, the surface coating on high strength layer has anticorrosive wearing layer, anticorrosive wearing layer includes alumina ceramic coating and tungsten carbide metal coating.

Advantageous effects

The utility model provides a corrosion-resistant oxidation-resistant high-strength bolt. Compared with the prior art, the method has the following beneficial effects:

(1) this corrosion-resistant anti-oxidation high strength bolt, pass the joint groove through the equipment of using with the mutual adaptation of nut, rotate equipment, make the edge of equipment inlay establish with the atress rotate the inslot, through the rotating positioning pole, it slides to joint inslot side to drive to resist the fixture block, and the surface that resists the fixture block is provided with the arch, thereby realize spacing to resisting of equipment, stop gear through the setting, can effectually fix a position the fastening to equipment, can effectually protect the head of bolt, prevent that the head of bolt can appear warping smooth silk, can't carry out the board to the bolt and twist the operation, it is downthehole with screw rod screw in mounting to rotate this equipment, screw the back of screwing up the screw rod, all insert the screw with the screw on the gasket again, then it is fixed to the gasket installation through the screw, thereby increase the fastening nature of this bolt.

(2) This corrosion-resistant anti-oxidation high strength bolt, high strength layer through setting up, because maraging steel layer in the high strength layer, alloy quenching and tempering steel layer and low alloy structure steel layer all possess splendid intensity, and then multi-level intensity protection has been formed in the inside of bolt, the effectual bolt of having avoided receives the fracture in the use, simultaneously through the setting of alumina ceramic coating and tungsten carbide metallic coating in the anticorrosive wearing layer, because alumina ceramic coating and tungsten carbide metallic coating all possess splendid anticorrosion and wear resistance, and then the surface at the bolt has formed double-layer anticorrosion and wear-resisting protection, when avoiding the bolt to receive wearing and tearing, can carry out effectual isolated to external corrosive substance, very big improvement the anticorrosion and the wear resistance of bolt.

Drawings

FIG. 1 is a perspective view of the external structure of the present invention;

FIG. 2 is a perspective sectional view of the spacing mechanism of the present invention;

fig. 3 is a perspective sectional view showing the structure of the screw in the present invention.

In the figure: 1. a nut; 2. a screw; 3. a gasket; 4. an outer cap; 5. a limiting mechanism; 6. screw teeth; 7. a column base; 101. a clamping groove; 102. a forced rotation groove; 201. a base layer; 202. a high-strength layer; 203. an anti-corrosion wear-resistant layer; 301. a screw hole; 302. a screw; 501. a placement groove; 502. a sliding groove; 503. a slider; 504. a resisting block; 505. and (5) positioning the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a corrosion-resistant oxidation-resistant high-strength bolt comprises a nut 1 and a screw 2, wherein the nut 1 is fixedly connected with the screw 2, the bottom of the nut 1 is fixedly connected with a gasket 3, the upper end of the gasket 3 is fixedly connected with an outer cap 4, and an inner cavity of the nut 1 is provided with a limiting mechanism 5; the limiting mechanism 5 comprises a placing groove 501 arranged in the nut 1, the upper end and the lower end of the placing groove 501 are provided with sliding grooves 502, a resisting fixture block 504 is arranged in the placing groove 501, the upper end and the lower end of the resisting fixture block 504 are fixedly connected with sliding blocks 503, the resisting fixture block 504 is positioned in the sliding grooves 502 through the sliding blocks 503 and is in sliding connection with the nut 1, the outer wall of one side of the resisting fixture block 504 is rotatably connected with a positioning rod 505, the other end of the positioning rod 505 penetrates through the nut 1 and an outer cap 4 and is fixedly connected with a knob, and the limiting mechanism 5 is arranged, so that equipment can be effectively positioned and fastened, the head of a bolt can be effectively protected, the head of the bolt can be prevented from being deformed and sliding wires can not be screwed on the bolt; the top of the nut 1 is provided with a clamping groove 101, and one side of the clamping groove 101 is provided with a stressed rotating groove 102; the size of the resisting fixture block 504 is matched with that of the clamping groove 101, the surface of the inner side end of the resisting fixture block 504 is a curved surface, and a bulge is arranged on the surface, so that the equipment can be effectively positioned and fastened; screw holes 301 are formed in two sides of the gasket 3, screws 302 are inserted into the screw holes 301, and the tightness of the screws is improved through the gasket 3, the screw holes 301 and the screws 302; the outer surface of the screw rod 2 is provided with threads 6, the threads 6 and the screw rod 2 are integrally designed, and the bottom end of each thread 6 is fixedly connected with a column base 7, so that the connection is more stable; screw rod 2 includes basic unit 201, the surface fixedly connected with high strength layer 202 of basic unit 201, high strength layer 202 includes maraging steel layer, alloy quenching and tempering steel layer and low alloy structure steel layer, high strength layer 202 through the setting, multi-level intensity protection has been formed in the inside of bolt, the effectual bolt of having avoided receives the fracture in the use, the surface coating of high strength layer 202 has anticorrosive wearing layer 203, anticorrosive wearing layer 203 includes alumina ceramic coating and tungsten carbide metal coating, anticorrosive wearing layer 203 through setting up, bilayer level anticorrosion and wear-resisting protection have been formed on the surface of bolt, when avoiding the bolt to receive wearing and tearing, can carry out effectual isolated to external corrosive substance, very big improvement the anticorrosion and the wear resistance of bolt.

And those not described in detail in this specification are well within the skill of those in the art.

When the bolt is used, equipment matched with the nut 1 penetrates through the clamping groove 101, the equipment is rotated, the corner of the equipment is embedded in the stress rotating groove 102, the resisting clamping block 504 is driven to slide towards the inner side of the clamping groove 101 by rotating the positioning rod 505, and the surface of the resisting clamping block 504 is provided with a protrusion, so that the resisting limiting of the equipment is realized, the equipment can be effectively positioned and fastened by the aid of the limiting mechanism 5, the head of the bolt can be effectively protected, the head of the bolt is prevented from being deformed and sliding, the bolt cannot be subjected to plate screwing operation, the equipment is rotated to screw the screw rod 2 into the mounting hole, after the screw rod 2 is screwed, the screw holes 301 in the gasket 3 are all inserted into the screws 302, and then the gasket 3 is mounted and fixed through the screws 302, so that the fastening performance of the bolt is improved; through the high strength layer 202 that sets up, because the maraging steel layer in the high strength layer 202, alloy quenching and tempering steel layer and low alloy structure steel layer all possess splendid intensity, and then multi-level intensity protection has been formed in the inside of bolt, the effectual bolt of having avoided receives the fracture in the use, simultaneously through the setting of aluminium oxide ceramic coating and tungsten carbide metallic coating in anticorrosive wearing layer 203, because aluminium oxide ceramic coating and tungsten carbide metallic coating all possess splendid anticorrosion and wear resistance, and then the surface at the bolt has formed double-deck anticorrosion and wear-resisting protection, when avoiding the bolt to receive wearing and tearing, can carry out effectual isolated to external corrosive substance, very big improvement the anticorrosion and the wear resistance of bolt, above is exactly the theory of operation of a corrosion-resistant oxygen-resistant high strength bolt.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a corrosion-resistant anti-oxidation's high strength bolt, includes nut (1) and screw rod (2), nut (1) and screw rod (2) fixed connection, its characterized in that: a gasket (3) is fixedly connected to the bottom of the nut (1), an outer cap (4) is fixedly connected to the upper end of the gasket (3), and a limiting mechanism (5) is arranged in an inner cavity of the nut (1);

the limiting mechanism (5) comprises a placing groove (501) formed in the nut (1), a sliding groove (502) is formed in the upper end and the lower end of the placing groove (501), a resisting clamping block (504) is arranged in the placing groove (501), a sliding block (503) is fixedly connected to the upper end and the lower end of the resisting clamping block (504), the resisting clamping block (504) is located in the sliding groove (502) through the sliding block (503) and is in sliding connection with the nut (1), a positioning rod (505) is rotatably connected to the outer wall of one side of the resisting clamping block (504), and the other end of the positioning rod (505) penetrates through the nut (1) and the outer cap (4) and is fixedly connected with a knob.

2. A corrosion-resistant oxidation-resistant high-strength bolt according to claim 1, wherein: the top of the nut (1) is provided with a clamping groove (101), and one side of the clamping groove (101) is provided with a stress rotating groove (102).

3. A corrosion-resistant oxidation-resistant high-strength bolt according to claim 2, wherein: the size of the resisting clamping block (504) is matched with that of the clamping groove (101), the surface of the inner side end of the resisting clamping block (504) is a curved surface, and a protrusion is arranged on the surface.

4. A corrosion-resistant oxidation-resistant high-strength bolt according to claim 1, wherein: screw holes (301) are formed in two sides of the gasket (3), and screws (302) are inserted into the screw holes (301).

5. A corrosion-resistant oxidation-resistant high-strength bolt according to claim 1, wherein: screw thread (6) have been seted up to the surface of screw rod (2), be integrated design between screw thread (6) and screw rod (2), the bottom fixedly connected with pylon (7) of screw thread (6).

6. The corrosion-resistant oxidation-resistant high-strength bolt according to claim 1, wherein: screw rod (2) are including basic unit (201), the surface fixedly connected with high strength layer (202) of basic unit (201), high strength layer (202) are including maraging steel layer, alloy quenching and tempering steel layer and low alloy structure steel layer, the surface coating of high strength layer (202) has anticorrosive wearing layer (203), anticorrosive wearing layer (203) are including aluminium oxide ceramic coating and tungsten carbide metal coating.