CN216895293U

CN216895293U - Fastener for marine environment

Info

Publication number: CN216895293U
Application number: CN202220408446.8U
Authority: CN
Inventors: 张建红; 韩群伟; 马三伟; 王明磊; 李铠臣; 杨昱琨; 田一杉; 刘昱明; 徐婷婷
Original assignee: Zhengzhou Aijie Environmental Protection Equipment Technology Co ltd
Current assignee: Zhengzhou Aijie Environmental Protection Equipment Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-05
Anticipated expiration: 2032-02-28

Abstract

The utility model relates to a fastener for marine environment, which is characterized in that an end cover is arranged at the tail part of a bolt, the end cover covers the tail part of the bolt, corresponding nuts and gaskets are limited mutually, and meanwhile, anti-skidding structures are arranged at the head part of the bolt and the positions, corresponding to workpieces, on the gaskets, so that the phenomenon that the nuts and the bolts are loosened by vibration can be effectively prevented; in addition, the end cover can protect the tail of the bolt and the nut and prevent seawater corrosion.

Description

Fastener for marine environment

Technical Field

The utility model relates to the technical field of fasteners, in particular to a fastener for marine environment.

Background

The fastener is a mechanical part which is used for fastening connection and has wide application, can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools and other articles, and is a mechanical basic part which is most widely applied.

The most common fastener is a bolt-type fastener which includes two cooperating bolts and nuts that are threadedly interconnected to interconnect two workpieces. The bolt can be applied to various fields, the requirements on bolt connection in different fields are different, and for a fastener in mechanical equipment used in a marine environment, the bolt is required to resist vibration and not loosen in the using process, and certain requirements on the corrosion resistance of the bolt are also required.

Disclosure of Invention

The utility model relates to a fastener for marine environment, which is characterized in that an end cover is arranged at the tail part of a bolt, the end cover covers the tail part of the bolt, corresponding nuts and gaskets are limited mutually, and meanwhile, anti-skid structures are arranged at the head part of the bolt and the positions, corresponding to workpieces, on the gaskets, so that the phenomenon that the nuts and the bolts are loosened by vibration can be effectively prevented; in addition, the end cover can protect the tail of the bolt and the nut and prevent seawater corrosion.

The utility model adopts the following technical scheme for realizing the aim:

a fastener for use in a marine environment includes a bolt and a nut.

A washer type flange is arranged above the head of the bolt, and a nut corresponds to a stud of the bolt; an annular gasket is arranged between the nut and the bolt and corresponds to the nut; inclined locking teeth which are uniformly distributed are arranged above the gasket type flange, and the locking teeth are annularly arranged on the gasket type flange; inclined locking teeth which are uniformly distributed are also arranged below the gasket, and the locking teeth are annularly arranged below the gasket; the inclination directions of the locking teeth on the gasket type flange and the gasket are opposite.

The tail part of the bolt is also provided with an end cover which is arranged on the gasket; the end cover is made of plastic materials.

An annular buckle is arranged above the gasket, and the end face of the buckle is of an inverted L-shaped structure; the lower part of the end cover is provided with a snap ring corresponding to the buckle, and the end surface of the snap ring is in a regular L-shaped structure; the end cover is arranged on the gasket through the matching of the buckle and the snap ring.

Further, the inner wall of buckle is equipped with evenly distributed's spacing tooth, and the inside annular limiting plate that stretches out downwards that is equipped with of end cover, the outer edge of limiting plate be equipped with the buckle on spacing tooth matched with spacing tooth.

Furthermore, a hexagonal groove corresponding to the nut is formed in the center of the limiting plate.

The top center of the end cover is provided with a through hole corresponding to the stud, the top of the end cover corresponding to the through hole is connected with an extension part, and the extension part is wrapped outside the tail part of the stud.

Furthermore, the extension part is made of flexible materials.

The utility model adopts the technical scheme and has the following beneficial effects:

the locking teeth arranged oppositely on the gasket type flange and the gasket can effectively prevent the loosening phenomenon caused by vibration; the end cover and the gasket are provided with the corresponding limiting teeth, and the hexagonal grooves in the limiting plates are combined, so that the effect of synchronizing the nut and the gasket can be achieved, and the nut is further prevented from loosening; in addition, the corresponding buckles and the snap rings on the end cover and the gasket and the extending parts arranged at the top of the end cover can separate the installed nut and gasket from seawater, and the corrosion of the seawater to the nut and gasket is reduced.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of another aspect of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a cross-sectional view of the end cap.

Detailed Description

The utility model will be further explained with reference to the drawings.

A fastener for use in a marine environment, as shown in figures 1 to 4, comprises a bolt 1 and a nut 2.

A washer type flange 102 is arranged above the head 101 of the bolt 1, and a nut 2 corresponds to a stud 103 of the bolt 1; an annular gasket 3 is further arranged between the nut 2 and the bolt 1, and the gasket 3 corresponds to the nut 2; inclined locking teeth 4 are uniformly distributed above the gasket type flange 102, and the locking teeth 4 are annularly arranged on the gasket type flange 102; inclined locking teeth 4 which are uniformly distributed are also arranged below the gasket 3, and the locking teeth 4 are annularly arranged below the gasket 3; the washer-type flange 102 and the locking teeth 4 on the washer 3 are inclined in opposite directions.

The tail part of the bolt 1 is also provided with an end cover 5, and the end cover 5 is arranged on the gasket 3; the end cover 5 is made of plastic materials.

An annular buckle 301 is arranged above the gasket 3, and the end face of the buckle 301 is of an inverted L-shaped structure; a snap ring 501 corresponding to the buckle 301 is arranged at the lower part of the end cover 5, and the end surface of the snap ring 501 is in a regular L-shaped structure; the end cap 5 is mounted on the gasket 3 by the cooperation of the snap 301 and the snap ring 501.

Further, the inner wall of the buckle 301 is provided with evenly distributed limiting teeth 302, the end cover 5 is internally provided with an annular limiting plate 502 extending downwards, and the outer edge of the limiting plate 502 is provided with limiting teeth 503 matched with the limiting teeth 302 on the buckle 301.

Further, a hexagonal groove 504 corresponding to the nut 2 is formed in the center of the limiting plate 502.

A through hole corresponding to the stud 103 is formed in the center of the top of the end cover 5, an extension portion 505 is connected to the position, corresponding to the through hole, of the top of the end cover 5, and the extension portion 505 wraps the tail of the stud 103.

Further, the extension portion 505 is made of a flexible material.

The fastener is used for sequentially installing the bolt, the gasket and the nut on two sides of a workpiece to be connected and then screwing the nut, and in the screwing process, due to the fact that the gasket type flange and the locking teeth on the gasket are arranged in a relatively inclined mode, after the nut compresses the gasket, relative rotation is not prone to occurring between the bolt and the gasket.

The end caps are then installed on the tail portions of the bolts and fastened to the washers. In the in-process of installation, in the buckle on the gasket was withheld to the snap ring on the end cover, at the in-process of withholding, align the hexagonal structure of hexagon recess and nut and impress, spacing tooth in the limiting plate outside simultaneously and the mutual butt joint cooperation of spacing tooth on the buckle inner wall, at this moment, under the cooperation of hexagon recess and nut and the spacing effect of cooperation between the tooth, relative slip can not take place for nut and gasket, buckle and snap ring also can prevent that the end cover from droing.

The arrangement of the extension part enables the end cover to realize relative sealing on the tail parts of the nut and the stud behind the gasket, so that the end cover is prevented from contacting with seawater, and the corrosion is reduced. The extension part is made of flexible materials, and the extension part can wrap the tail part of the stud no matter how far the tail part of the stud exceeds the nut.

Claims

1. A fastener for use in a marine environment, comprising a bolt and a nut, wherein: a washer type flange is arranged above the head of the bolt, and a nut corresponds to a stud of the bolt; an annular gasket is arranged between the nut and the bolt and corresponds to the nut; inclined locking teeth which are uniformly distributed are arranged above the gasket type flange, and the locking teeth are annularly arranged on the gasket type flange; inclined locking teeth which are uniformly distributed are also arranged below the gasket, and the locking teeth are annularly arranged below the gasket; the inclination directions of the locking teeth on the gasket type flange and the gasket are opposite.

2. A fastener for use in a marine environment, according to claim 1, wherein: the tail part of the bolt is also provided with an end cover which is arranged on the gasket; the end cover is made of plastic materials.

3. A fastener for use in a marine environment, according to claim 2, wherein: an annular buckle is arranged above the gasket, and the end face of the buckle is of an inverted L-shaped structure; the lower part of the end cover is provided with a snap ring corresponding to the buckle, and the end surface of the snap ring is in a regular L-shaped structure; the end cover is arranged on the gasket through the matching of the buckle and the snap ring.

4. A fastener for use in a marine environment, according to claim 3, wherein: the inner wall of buckle is equipped with evenly distributed's spacing tooth, and the inside annular limiting plate that is equipped with downwardly extending of end cover, the outer edge of limiting plate be equipped with the spacing tooth matched with spacing tooth on the buckle spacing tooth.

5. A fastener for use in a marine environment, according to claim 4, wherein: and a hexagonal groove corresponding to the nut is formed in the center of the limiting plate.

6. A fastener for use in a marine environment, according to claim 5, wherein: the top center of the end cover is provided with a through hole corresponding to the stud, the top of the end cover corresponding to the through hole is connected with an extension part, and the extension part is wrapped outside the tail part of the stud.

7. A fastener for use in a marine environment, according to claim 6, wherein: the extension part is made of flexible materials.