CN213478887U

CN213478887U - Multiple anticorrosive structure of bolt fastener

Info

Publication number: CN213478887U
Application number: CN202022124054.2U
Authority: CN
Inventors: 陆广强
Original assignee: Nanjing Jiadi Fastener Manufacturing Co ltd
Current assignee: Jiangsu Jiadi New Material Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-18
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a multiple anticorrosion structure of a bolt fastener, which comprises a nut and a screw rod, wherein the outside of the nut is movably connected with a bolt sleeve, the screw rod is provided with a lower gasket, a gasket and a nut, one end of the nut is attached to the gasket and is movably connected with the nut sleeve at the other end; the bolt sleeve comprises an outer sleeve and an inner sleeve, and a nut sleeve space embedded with a nut is sleeved in the inner sleeve; the nut sleeve is provided with a nut placing space embedded with the nut, and the nut sleeve is provided with a pore passage corresponding to the screw hole; a galvanized anticorrosive layer and a wear-resistant layer are arranged outside the screw cap or the nut; the outer sleeve or the nut sleeve comprises an inner anticorrosive rubber layer and an outer nano fluorine-silicon anticorrosive layer; the lower gasket or the gasket comprises an inner plastic body and an anticorrosive rubber outer layer wrapping the plastic body. The utility model provides an anti-corrosion structure of a bolt body, an anti-corrosion structure of a lower gasket and an anti-corrosion structure of a bolt sleeve; simultaneously, an anti-corrosion structure of the female body, an anti-corrosion structure of the gasket and an anti-corrosion structure of the nut sleeve are provided.

Description

Multiple anticorrosive structure of bolt fastener

Technical Field

The utility model relates to a bolt fastener field especially relates to a multiple anticorrosive structure of bolt fastener.

Background

Many bolt fasteners are often required in electrical power facilities for outdoor tower installations and the like. Because the bolt fastener is outdoors or even outdoors for a long time, the bolt fastener is greatly stressed by the environment and is easy to corrode, and the normal use of electric power facilities is influenced. At present, a multiple anticorrosion structure designed for bolt fastener products is still lacked, and environmental stress can be effectively resisted.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: aiming at the defects of the prior art, the utility model provides a multiple anticorrosion structure of a bolt fastener, which provides an anticorrosion structure of a bolt body, an anticorrosion structure of a lower gasket and an anticorrosion structure of a bolt sleeve; simultaneously, an anti-corrosion structure of the female body, an anti-corrosion structure of the gasket and an anti-corrosion structure of the nut sleeve are provided.

The technical scheme is as follows: the utility model discloses a multiple anticorrosive structure of bolt fastener, its characterized in that: the nut is movably connected with the bolt sleeve, a lower gasket, a gasket and a nut are arranged on the screw rod, one end of the nut is attached to the gasket, and the other end of the nut is movably connected with the nut sleeve; the bolt sleeve comprises an outer sleeve and an inner sleeve, and a nut sleeve space embedded with a nut is sleeved in the inner sleeve; the nut sleeve is provided with a nut placing space embedded with the nut, and the nut sleeve is provided with a pore passage corresponding to the screw hole; a galvanized anticorrosive layer and a wear-resistant layer are arranged outside the screw cap or the nut; the outer sleeve or the nut sleeve comprises an inner anticorrosive rubber layer and an outer nano fluorine-silicon anticorrosive layer; the lower gasket or the gasket comprises an inner plastic body and an anticorrosive rubber outer layer wrapping the plastic body.

The nut and the nut are hexagonal, and the nut sleeve space and the nut placing space are hexagonal.

Wherein, the outer sleeve is provided with a buckle body.

Wherein, be equipped with a plurality of wear-resisting arch on the wearing layer.

The cross section of the lower gasket and the cross section of the gasket are circular or oval.

Wherein the thickness of the zinc layer of the zinc plating anticorrosive layer is more than 54 mu m.

Has the advantages that: compared with the prior art, the utility model has the following apparent advantage: the utility model provides multiple anticorrosion protection for the bolt fastener, the multiple anticorrosion structure provides the anticorrosion structure of the bolt body, the anticorrosion structure of the lower gasket and the anticorrosion structure of the bolt sleeve; simultaneously, an anti-corrosion structure of the female body, an anti-corrosion structure of the gasket and an anti-corrosion structure of the nut sleeve are provided. The utility model discloses a bolt fastener wholly carries out multiple anticorrosive protection.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the surface structure of the nut or nut of the present invention;

fig. 3 is a schematic cross-sectional structure view of the outer sleeve or the nut sleeve of the present invention;

FIG. 4 is a schematic cross-sectional view of the lower gasket or the gasket of the present invention;

FIG. 1 shows a nut; 2 is a screw rod; 3 is a bolt sleeve; 4 is a lower gasket; 5 is a jacket; 6 is an inner sleeve; 7 is a nut sleeve space; 8 is a buckle body; 9 is a nut; 10 is a screw hole; 11 is a nut sleeve; 12 is a space for placing a nut; 13 is a pore channel; 14 is a gasket; 15 is a galvanized anti-corrosion layer; 16 is a wear resistant layer; 17 is a nano fluorine-silicon anticorrosive coating; 18 is an anti-corrosion rubber layer; 19 is a plastic body; 20 is an outer layer of antiseptic rubber.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings and the detailed description.

The utility model discloses a multiple anticorrosion structure of bolt fastener, including nut 1 and screw rod 2, nut 1 outside and bolt housing 3 swing joint, be equipped with lower gasket 4, gasket 14 and nut 9 on the screw rod 2, nut 9 one end is laminated with gasket 14 and is connected with nut housing 11 swing joint at the other end; the bolt sleeve 3 comprises an outer sleeve 5 and an inner sleeve 6, and the inner sleeve 6 is provided with a nut sleeve space 7 embedded with the nut 1; the nut sleeve 11 is provided with a nut placing space 12 which is embedded with the nut 9, and the nut sleeve 11 is provided with a pore channel 13 which corresponds to the screw hole 10; a galvanized anti-corrosion layer 15 and a wear-resistant layer 16 are arranged outside the nut 1 or the nut 9; the outer sleeve 5 or the nut sleeve 11 comprises an inner anticorrosive rubber layer 18 and an outer nano fluorine-silicon anticorrosive layer 17; the lower gasket 4 or the gasket 14 comprises an inner plastic body 19 and an outer layer 20 of corrosion-resistant rubber wrapping the plastic body 19. The nut 1 and the nut 9 are hexagonal, and the nut sleeve space 7 and the nut placing space 12 are hexagonal. The outer sleeve 5 is provided with a buckle body 8. The wear-resistant layer 16 is provided with a plurality of wear-resistant protrusions. The cross-sectional shapes of the lower gasket 4 and the gasket 14 are circular or elliptical. The thickness of the zinc layer of the zinc plating anticorrosive layer 15 is more than 54 mu m.

During the use, the electric power facility passes through the utility model discloses a bolt fastening connection is equipped with down gasket 4 on the

screw rod

2, and 1 outside and 3 swing joint of bolt housing of nut provide multiple anticorrosive protection for the bolt. Meanwhile, after the bolt is installed, the nut 9 is installed, a gasket 14 is arranged between the nut 9 and an external component, and a nut sleeve 11 is sleeved outside the nut 9 to provide multiple anticorrosion protection for the nut 9.

First heavy corrosion prevention: a lower gasket 4 is arranged on the screw rod 2, and the lower part of the screw cap 1 is protected from corrosion through the lower gasket 4; a gasket 14 is arranged between the nut 9 and an external component, and the joint is protected from corrosion through the gasket 14.

And (3) secondary anticorrosion: the lower gasket 4 or the gasket 14 comprises an inner plastic body 19 and an outer layer 20 of anti-corrosion rubber wrapping the plastic body 19, and the anti-corrosion protection is further performed through the outer layer 20 of anti-corrosion rubber.

And (3) tertiary corrosion prevention: nut 1 or the outside of nut 9 are equipped with zinc-plated anticorrosive coating 15 and wearing layer 16, are equipped with the wear-resisting arch of a plurality of on wearing layer 16, carry out the anticorrosive protection of bolt body through zinc-plated anticorrosive coating 15, also strengthen the wear resistance of bolt through wearing layer 16 simultaneously.

Fourth anticorrosion: the outer sleeve 5 or the nut sleeve 11 comprises an inner anticorrosive rubber layer 18 and an outer nano fluorine silicon anticorrosive layer 17, and the anticorrosive rubber layer 18 is made of a mature anticorrosive rubber material in the prior art and has corrosion resistance; the nano fluorine-silicon anticorrosive coating 17 is an anticorrosive coating for further anticorrosive protection.

Claims

1. Multiple anticorrosive structure of bolt fastener, its characterized in that: the nut comprises a nut (1) and a screw rod (2), wherein the outer part of the nut (1) is movably connected with a bolt sleeve (3), a lower gasket (4), a gasket (14) and a nut (9) are arranged on the screw rod (2), one end of the nut (9) is attached to the gasket (14) and the other end of the nut (9) is movably connected with a nut sleeve (11); the bolt sleeve (3) comprises an outer sleeve (5) and an inner sleeve (6), and the inner sleeve (6) is provided with a nut sleeve space (7) embedded with the nut (1); the nut sleeve (11) is provided with a nut placing space (12) which is embedded with the nut (9), and the nut sleeve (11) is provided with a pore channel (13) corresponding to the screw hole (10); a galvanized anticorrosive layer (15) and a wear-resistant layer (16) are arranged outside the nut (1) or the nut (9); the outer sleeve (5) or the nut sleeve (11) comprises an inner anticorrosive rubber layer (18) and an outer nano fluorine-silicon anticorrosive layer (17); the lower gasket (4) or the gasket (14) comprises an inner plastic body (19) and an anticorrosive rubber outer layer (20) wrapping the plastic body (19).

2. The multiple anticorrosion structure of a bolt fastener according to claim 1, characterized in that: the nut (1) and the nut (9) are hexagonal, and the nut sleeve space (7) and the nut placing space (12) are hexagonal.

3. The multiple anticorrosion structure of a bolt fastener according to claim 1, characterized in that: the outer sleeve (5) is provided with a buckle body (8).

4. The multiple anticorrosion structure of a bolt fastener according to claim 1, characterized in that: the wear-resistant layer (16) is provided with a plurality of wear-resistant bulges.

5. The multiple anticorrosion structure of a bolt fastener according to claim 1, characterized in that: the cross sections of the lower gasket (4) and the gasket (14) are circular or oval.

6. The multiple anticorrosion structure of a bolt fastener according to claim 1, characterized in that: the thickness of the zinc layer of the zinc-plating anticorrosive layer (15) is more than 54 mu m.