CN216691772U

CN216691772U - Waterproof special combined screw

Info

Publication number: CN216691772U
Application number: CN202122776204.2U
Authority: CN
Inventors: 徐建华
Original assignee: Haiyan Huaye Hardware Co ltd
Current assignee: Haiyan Huaye Hardware Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-06-07
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a special waterproof combined screw, which relates to the technical field of screws and comprises a bolt cap and a bolt body, wherein the bolt cap is hemispherical, a gasket groove is formed in the middle of one side surface of the bolt cap, an extrusion groove is formed in the middle of the bottom of the gasket groove, one end of the bolt body is fixedly connected with the middle of the bottom of the extrusion groove, the inner side wall of the extrusion groove is obliquely arranged, a connecting gasket matched with the gasket groove is arranged in an inner cavity of the gasket groove, and an inner annular gasket is connected to the middle of one side surface, close to the bolt cap, of the connecting gasket in an adhering mode. According to the utility model, the inner annular pad is connected to one side face of the connecting gasket in an adhering manner, and the outer annular pad is connected to one side face edge of the bolt cap in an adhering manner, so that when the device is installed, the inner side wall of the extrusion groove can firstly extrude the inner annular pad to generate elastic deformation, thereby improving the sealing property between the outer side wall of the bolt body and the inner annular pad, and secondly, the outer annular pad is pressed to improve the sealing property of the inner cavity of the gasket groove, thereby ensuring that the device has a good waterproof effect.

Description

Waterproof special combined screw

Technical Field

The utility model relates to the technical field of screws, in particular to a waterproof special combined screw.

Background

The screw is a tool for fastening the parts of an object step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction of the object, and is commonly used for mechanical assembly.

However, at present, clearance fit between current combination screw, its gasket and the bolt, gasket self is the metal material usually moreover, can't play good waterproof effect during the use to lead to the screw to use rust easily for a long time, secondly, the hexagon socket head that the screw head was seted up exposes for a long time outside, also takes place to rust easily, and then leads to the unable smooth insertion of hexagon socket head spanner, thereby influences the installation dismantlement of screw. Therefore, it is necessary to invent a waterproof special combination screw to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special waterproof combined screw to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: waterproof special combination screw, including bolt cap and the key, the bolt cap sets up to the hemisphere, the gasket groove has been seted up at a side middle part of bolt cap, the extrusion groove has been seted up at the tank bottom middle part in gasket groove, the one end of key and the tank bottom middle part fixed connection in extrusion groove, the inside wall slope in extrusion groove sets up, the inner chamber in gasket groove is provided with the connection gasket of looks adaptation with it, the connection gasket is close to a side middle part adhesive connection who bolts the cap and has interior annular pad, the equal activity of connection gasket and interior annular pad cup joints in the outside of the key, the lateral wall slope of interior annular pad sets up, the friction line has all been seted up to the both sides face of connection gasket, a side edge adhesive connection of bolt cap has outer annular pad.

Preferably, the edge of the other side surface of the bolt cap is annularly provided with a water guide groove, and the middle part of the other side surface of the bolt cap is provided with a hexagon socket.

Preferably, the middle part of the bottom of the inner hexagonal hole is provided with a limiting sliding chute, the inner cavity of the inner hexagonal hole is provided with a sealing plate matched with the inner hexagonal hole, and the edge of the sealing plate is connected with a sealing gasket in an adhering mode.

Preferably, the middle part of one side face of the sealing plate is fixedly connected with a connecting column, and one end of the connecting column is fixedly connected with a limiting sliding block.

Preferably, the limiting sliding block is located in an inner cavity of the limiting sliding groove and matched with the limiting sliding groove, a thrust spring is arranged in the inner cavity of the limiting sliding groove, and two ends of the thrust spring are respectively attached to one side face of the limiting sliding block and the groove bottom of the limiting sliding groove.

The utility model has the technical effects and advantages that:

1. according to the utility model, the gasket groove is formed in one side face of the bolt cap, the extrusion groove is formed in the groove bottom of the gasket groove, the inner annular pad is connected to one side face of the connecting gasket in a bonding mode, the inner side wall of the extrusion groove and the outer side wall of the inner annular pad are arranged in an inclined mode, and the outer annular pad is connected to one side edge of the bolt cap in a bonding mode;

2. according to the utility model, the sealing plate matched with the inner cavity of the inner hexagonal hole is arranged in the inner cavity of the inner hexagonal hole, the sealing gasket is connected to the edge of the sealing plate in an adhering manner, the bottom of the inner hexagonal hole is provided with the limiting sliding groove, and the inner cavity of the limiting sliding groove is provided with the thrust spring, so that the thrust spring provides thrust and the sealing plate can be positioned at the opening end of the inner hexagonal hole through the connecting action of the limiting sliding block and the connecting column, and the inner cavity of the inner hexagonal hole is sealed, and further, the phenomenon that the use of the wrench is influenced due to the fact that the inner cavity of the inner hexagonal hole is rusted when water enters the inner cavity of the inner hexagonal hole is avoided.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is an exploded view of the overall structure of the present invention.

Fig. 3 is a perspective view of the connecting pad structure of the present invention.

Fig. 4 is a schematic perspective cross-sectional view of the cap structure of the present invention.

In the figure: 1. a bolt cap; 2. a plug body; 3. a gasket groove; 4. extruding a groove; 5. connecting a gasket; 6. an inner annular pad; 7. rubbing the lines; 8. an outer annular pad; 9. a water chute; 10. an inner hexagonal hole; 11. a limiting chute; 12. a sealing plate; 13. connecting columns; 14. a limiting slide block; 15. a thrust spring.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a waterproof special combined screw as shown in figures 1-4, which comprises a bolt cap 1 and a bolt body 2, wherein the bolt cap 1 is hemispherical, a gasket groove 3 is formed in the middle of one side surface of the bolt cap 1, an extrusion groove 4 is formed in the middle of the bottom of the gasket groove 3, one end of the bolt body 2 is fixedly connected with the middle of the bottom of the extrusion groove 4, and the hemispherical bolt cap 1 has a good water guiding function, so that water flow can flow away along the periphery of the bolt cap 1, and the possibility of water flow permeating into the inner cavity of the gasket groove 3 is reduced.

Secondly, the inner side wall of the extrusion groove 4 is obliquely arranged, the inner cavity of the gasket groove 3 is provided with a connecting gasket 5 matched with the inner side wall, the middle part of one side surface of the connecting gasket 5, which is close to the bolt cap 1, is connected with an inner annular gasket 6 in an adhering way, the connecting gasket 5 and the inner annular gasket 6 are movably sleeved on the outer side of the bolt body 2, the outer side wall of the inner annular gasket 6 is obliquely arranged, the two side surfaces of the connecting gasket 5 are respectively provided with friction grains 7, and the edge of one side surface of the bolt cap 1 is connected with an outer annular gasket 8 in an adhering way, when the device is installed, the inner side wall of the extrusion groove 4 firstly extrudes the inner annular gasket 6, the inner annular gasket 6 generates elastic deformation and gathers towards the center of the inner annular gasket 6, so as to ensure the sealing between the inner annular gasket 6 and the outer side wall of the bolt body 2, then the groove bottom of the gasket groove 3 extrudes the side surface of the connecting gasket 5, finally, the edge of one side surface of the bolt cap 1 and the surface of the wall surface or the connecting piece are extruded, and the outer annular gasket 8 can improve the sealing between the bolt cap 1 and the surface of the wall surface or the connecting piece, thereby avoiding water flow from permeating into the inner cavity of the gasket groove 3, effectively avoiding water flow from permeating after the device is installed, and further avoiding the possibility of rusting.

Further, aqueduct 9 has been seted up at another side edge ring shape of bolt cap 1, hexagonal hole 10 in having seted up at another side middle part of bolt cap 1, the setting of aqueduct 9 can lead to the water that bolt cap 1 another side flows, thereby reduce the possibility that rivers enter hexagonal hole 10 inner chamber, spacing spout 11 has been seted up at the tank bottom middle part of hexagonal hole 10, the inner chamber of hexagonal hole 10 is provided with the closing plate 12 of looks adaptation with it, the edge bonding connection of closing plate 12 has sealed the pad, the inner chamber of hexagonal hole 10 slides including closing plate 12 can, and closing plate 12 can form sealedly to the inner chamber of hexagonal hole 10, thereby avoid rivers to get into the inner chamber of hexagonal hole 10 and lead to interior hexagonal hole 10 inside wall to rust.

And, a side middle part fixedly connected with spliced pole 13 at closing plate 12, the one end fixedly connected with spacing slider 14 of spliced pole 13, spacing slider 14 is located the inner chamber of spacing spout 11 and with spacing spout 11 looks adaptation, the inner chamber of spacing spout 11 is provided with thrust spring 15, thrust spring 15's both ends laminate with the side of spacing slider 14 and the tank bottom of spacing spout 11 respectively, thrust spring 15 provides thrust and ensures that closing plate 12 is located the open end of interior hexagonal hole 10 all the time, thereby can avoid external rivers to enter the inner chamber of interior hexagonal hole 10, when interior hexagonal spanner inserts the inner chamber of interior hexagonal hole 10, the spanner promotes closing plate 12 and can push closing plate 12 to the tank bottom of interior hexagonal hole 10, thereby ensure that interior hexagonal spanner can insert the inner chamber of interior hexagonal hole 10 smoothly and twist to this device wholly.

The working principle of the utility model is as follows:

when the device is used, firstly, the connecting gasket 5 and the inner annular pad 6 are sleeved on the outer side of the bolt body 2, then the bolt body 2 is screwed into the threaded hole until the device cannot be screwed manually, then an inner hexagonal wrench matched with the inner hexagonal hole 10 is inserted into an inner cavity of the inner hexagonal hole 10, at the moment, the inner hexagonal wrench can push the sealing plate 12 to the bottom of the inner hexagonal hole 10 and compress the thrust spring 15, and then the device can be screwed by pulling the wrench;

in the process that the bolt body 2 is screwed into the threaded hole, the inner side wall of the extrusion groove 4 firstly contacts and extrudes the inner annular pad 6, so that the inner annular pad 6 is elastically deformed, the sealing property between the inner annular pad 6 and the outer side wall of the bolt body 2 is improved, then the groove bottom of the gasket groove 3 extrudes the connecting gasket 5 to ensure that the surface stress of the connecting piece is uniform, and finally the outer annular pad 8 contacts and extrudes with the surface of the connecting piece, so that the water flow can be effectively prevented from permeating into the inner cavity of the gasket groove 3, and further the possibility of rusting of the bolt body 2 is avoided;

and finally, the wrench is taken down from the inner cavity of the inner hexagonal hole 10, the thrust spring 15 recovers deformation to provide thrust, and then the sealing plate 12 is driven to move to the opening end of the inner hexagonal hole 10 and seal the inner cavity of the sealing plate 12, so that external water is effectively prevented from entering the inner cavity of the inner hexagonal hole 10 and rusting of the inner side wall of the inner hexagonal hole 10 is caused.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Waterproof special combination screw, including bolt cap (1) and bolt body (2), its characterized in that: the bolt cap (1) is hemispherical, a gasket groove (3) is arranged in the middle of one side face of the bolt cap (1), an extrusion groove (4) is arranged in the middle of the groove bottom of the gasket groove (3), one end of the bolt body (2) is fixedly connected with the middle of the groove bottom of the extrusion groove (4), the inner side wall of the extrusion groove (4) is obliquely arranged, the inner cavity of the gasket groove (3) is provided with a connecting gasket (5) matched with the gasket groove, the middle part of one side surface of the connecting gasket (5) close to the bolt cap (1) is connected with an inner annular gasket (6) in an adhering way, the connecting gasket (5) and the inner annular gasket (6) are movably sleeved on the outer side of the bolt body (2), the outer side wall of the inner annular pad (6) is obliquely arranged, friction grains (7) are arranged on both side surfaces of the connecting gasket (5), an outer annular pad (8) is connected to one side edge of the bolt cap (1) in an adhesive mode.

2. The waterproof special combination screw according to claim 1, characterized in that: the edge of the other side face of the bolt cap (1) is annularly provided with a water guide groove (9), and the middle part of the other side face of the bolt cap (1) is provided with an inner hexagonal hole (10).

3. The waterproof special combination screw of claim 2, characterized in that: the limiting sliding groove (11) is formed in the middle of the bottom of the inner hexagonal hole (10), the sealing plate (12) matched with the inner hexagonal hole (10) is arranged in the inner cavity of the inner hexagonal hole, and the sealing gasket is connected to the edge of the sealing plate (12) in an adhesive mode.

4. The waterproof special combination screw of claim 3, characterized in that: the middle part of one side face of the sealing plate (12) is fixedly connected with a connecting column (13), and one end of the connecting column (13) is fixedly connected with a limiting sliding block (14).

5. The waterproof special combination screw of claim 4, characterized in that: spacing slider (14) are located the inner chamber of spacing spout (11) and with spacing spout (11) looks adaptation, the inner chamber of spacing spout (11) is provided with thrust spring (15), thrust spring (15) both ends laminate with the tank bottom of a side of spacing slider (14) and spacing spout (11) respectively.