CN221401302U

CN221401302U - Hexagonal bolt

Info

Publication number: CN221401302U
Application number: CN202323455892.8U
Authority: CN
Inventors: 黄浩
Original assignee: Guiyang Gaoxin Taifeng Aerospace Science And Technology Co ltd
Current assignee: Guiyang Gaoxin Taifeng Aerospace Science And Technology Co ltd
Priority date: 2023-12-19
Filing date: 2023-12-19
Publication date: 2024-07-23
Anticipated expiration: 2033-12-19

Abstract

The utility model discloses a hexagonal bolt, and belongs to a fastener. Comprises a bolt head, a gasket and a screw rod which are fixedly connected in sequence; the bolt also comprises a bolt cap; the bottom surface of the gasket is provided with a first groove, and a sealing ring is arranged in the first groove; the bottom surface of the bolt cap is provided with an opening and is used for sleeving the bolt head; the side surface of the bolt cap is inclined inwards, and a pressing plate pressed on the outer edge of the gasket is formed after the tail end of the bolt cap is inclined outwards; the bolt head is provided with a circumferential second groove at the corresponding position of the inclined inflection point after the bolt cap is sleeved. The hexagonal bolt can effectively prevent external corrosion, has a wide application range, and is particularly suitable for outdoor or polluted environments.

Description

Hexagonal bolt

Technical Field

The utility model relates to a fastener, in particular to a hexagonal bolt.

Background

A hex bolt is one type of fastener, typically consisting of a head and a shank, for connecting a workpiece. When used outdoors or in polluted environments, the joints are easily eroded and polluted by water or chemicals with the increase of the service time, resulting in unreliable connection or difficult detachment. For example: corrosion of the screw thread, corrosion of the screw rod and the workpiece, corrosion of the mounting hole of the inner angle bolt, and the like.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a hexagonal bolt capable of effectively preventing external corrosion.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a hexagonal bolt comprises a bolt head, a gasket and a screw rod which are fixedly connected in sequence; the bolt also comprises a bolt cap; the bottom surface of the gasket is provided with a first groove, and a sealing ring is arranged in the first groove; the bottom surface of the bolt cap is provided with an opening and is used for sleeving the bolt head; the side surface of the bolt cap is inclined inwards, and a pressing plate pressed on the outer edge of the gasket is formed after the tail end of the bolt cap is inclined outwards; the bolt head is provided with a circumferential second groove at a position corresponding to the inclined inflection point after the bolt cap is sleeved; an anti-slip rubber ring is arranged in the second groove 21.

Preferably: the side face of the bolt cap is inclined inwards by 1-6 degrees.

Preferably: the top surface of the bolt cap is a conical surface with high middle and low outer.

Preferably: the two sides of the bolt cap are provided with lug plates, and the bottom surfaces of the lug plates are wavy curved surfaces.

Preferably: the bolt head, the gasket and the screw rod are made of titanium alloy, and the bolt cap is made of spring steel.

When in use, only the bolts (the bolt heads, the gaskets and the screw rods) are required to be installed, and then the bolt caps are sleeved. The reliable sleeving structure can be formed by the elastic pressure of the side face of the bolt cap and the design of the inflection point of the side face, and the design of the inflection point of the side face of the bolt cap and the matching of the anti-skid rubber ring in the second groove.

According to the utility model, through the design of the gasket and the sealing ring, the connection part of the screw rod can be effectively prevented from being entered by water or other substances, and rust or pollution is prevented; the bolt head is prevented from being polluted by the bolt cap, and the bolt head is still convenient to detach after long-term use, thereby being beneficial to outdoor use or use in polluted environments. The lug plates at the two sides of the bolt cap are convenient for removing the bolt cap, and the wavy curved surface at the bottom can be anti-skidding.

Drawings

FIG. 1 is a schematic diagram of the overall structure;

Fig. 2 is an enlarged view of the bolt cap.

In the figure: 1. a bolt cap; 11. a pressing plate; 12. ear plates; 2. a bolt head; 21. a second groove; 3. a gasket; 31. a first groove; 4. a screw; 5. and (3) sealing rings.

Description of the embodiments

The structure and principles of the present utility model are fully described in connection with specific embodiments to enable those skilled in the art to understand and practice them.

As shown in fig. 1 and 2, the hexagonal bolt comprises a bolt head 2, a gasket 3 and a screw 4 which are fixedly connected in sequence; also comprises a bolt cap 1; the bottom surface of the gasket 3 is provided with a first circumferential groove 31, and a sealing ring 5 is arranged in the first groove 31; the bottom surface of the bolt cap 1 is provided with an opening and is sleeved on the bolt head 2; the side surface of the bolt cap 1 is inclined inwards, and a pressing plate 11 which is pressed on the outer edge of the gasket 3 is formed after the tail end of the bolt cap is inclined outwards; the bolt head 2 is provided with a circumferential second groove 21 at a position corresponding to the inclined inflection point after the bolt cap 1 is sleeved; an anti-slip rubber ring is arranged in the second groove 21.

The gasket 3 and the sealing ring 5 are used for preventing the screw rod from being corroded by 4 times of the outside, wherein the sealing ring 5 can be a metal rubber sealing ring, so that a wider application range is achieved, the sealing ring is made of stainless steel wires and can be used in high-radiation, high-low-temperature or corrosion environments, including environments such as summer and cold seasons or rainy and snowy days, and the sealing strength is high, the sealing ring is good in effect and can be repeatedly used.

Preferably: the side surface of the bolt cap 1 is inclined inward by an angle of 1 to 6 degrees (shown as a).

When the bolt cap 1 is installed, the bolt cap is only required to be directly sleeved outside the bolt head 2, a certain angle is inwards inclined to form an inwards elastic extrusion force after the bolt cap is sleeved, the connection effect is improved, the pressing plate 11 formed by outwards inclining the tail end is reported outside the gasket 3, the integrity after installation is improved, and the connection effect is further improved; the inclined inflection point is matched with the anti-skid rubber ring in the second groove 21 to form a firmer connecting structure.

Preferably: the top surface of the bolt cap 1 is a conical surface with a middle height and a lower outer height. The shape of top surface can prevent ponding, and long-term low temperature ponding in sleet weather is easy to the bolt erosion, especially corresponds hexagon socket head cap bolt, and the hole in bolt cap middle part often ponds when external use.

Preferably: the two sides of the bolt cap 1 are provided with the lug plates 12, and the bottom surfaces of the lug plates 12 are wavy curved surfaces.

The bolt cap 1 is convenient to detach through the design of the lug plates 12, the lug plates 12 form an operation surface of a hand, the lug plates 12 on two sides can be symmetrically arranged according to the requirement, and a plurality of lug plates 12 with different shapes can be designed.

Preferably: the bolt head 2, the gasket 3 and the screw 4 are made of titanium alloy, and the bolt cap 1 is made of spring steel.

The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or modifications to equivalent embodiments using the above disclosed method without departing from the technical principle and scope of the solution of the present utility model. Therefore, any combination, modification or substitution of the technical features disclosed in the present utility model according to the technical substance of the present utility model should be within the protection scope of the technical solution of the present utility model, wherever the principle or the solution of the present utility model is not deviated.

Claims

1. The hexagonal bolt is characterized by comprising a bolt head (2), a gasket (3) and a screw (4) which are fixedly connected in sequence; the screw bolt comprises a screw bolt cap (1); the bottom surface of the gasket (3) is provided with a first circumferential groove (31), and a sealing ring (5) is arranged in the first groove (31); the bottom surface of the bolt cap (1) is provided with an opening and is used for sleeving the bolt head (2); the side surface of the bolt cap (1) is inclined inwards, and a pressing plate (11) pressed on the outer edge of the gasket (3) is formed after the tail end of the bolt cap is inclined outwards; the bolt head (2) is provided with a circumferential second groove (21) at a position corresponding to the inclined inflection point after the bolt cap (1) is sleeved, and an anti-slip rubber ring is arranged in the second groove (21).

2. A hexagonal bolt according to claim 1, characterized in that the bolt cap (1) is inclined sideways inwards by an angle of 1-6 °.

3. A hexagonal bolt according to claim 2, wherein the top surface of the bolt cap (1) is a conical surface with a high middle and a low outer.

4. A hexagonal bolt according to claim 3, wherein the lug plates (12) are arranged on two sides of the bolt cap (1), and the bottom surfaces of the lug plates (12) are wavy curved surfaces.

5. A hexagonal bolt according to claim 4, wherein the bolt head (2), the washer (3) and the screw (4) are made of titanium alloy, and the bolt cap (1) is made of spring steel.