CN215567157U

CN215567157U - Fastening durable inner hexagonal thin-round column head machine screw

Info

Publication number: CN215567157U
Application number: CN202121115273.2U
Authority: CN
Inventors: 胡斌; 许玲玲; 刘金伟
Original assignee: Qingyuan Fast Precision Hardware Co ltd
Current assignee: Guangdong Fasite Precision Hardware Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-01-18
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a fastening durable type inner hexagonal thin round column head machine screw which comprises a screw main body, wherein the screw main body comprises a first connecting body, a second connecting body and a connecting disc, one end of the first connecting body is fixedly connected with the second connecting body, one end of the second connecting body is fixedly connected with the connecting disc, one end of the connecting disc is fixedly connected with a threaded column, one end of the threaded column is provided with a mounting groove, the bottom of the mounting groove is fixedly connected with a spring, and one end of the spring is fixedly connected with one end of an elastic column, the screw is installed more tightly, the screw has good firmness and corrosion resistance, and the hexagonal groove of the screw also has a protection structure, so that the screw has longer service life.

Description

Fastening durable inner hexagonal thin-round column head machine screw

Technical Field

The utility model relates to the technical field of screws, in particular to a fastening durable type inner hexagonal thin round column head machine screw.

Background

Screws are a common fastener and are widely used in machinery, electrical appliances and buildings. The general material is metal or plastic, and is cylindrical, and the ditch that the surface was carved with the concave and convex is called the screw thread, and the screw is various, and there are fluting ordinary screw, hexagonal flower shape screw, cross recess ordinary screw and interior hexagonal thin round column head machine screw etc..

The screw is not closely connected with the threaded hole in the screwing process of the existing screw, so that the screw is not tightly installed, the screw does not have good firmness and corrosion resistance, the hexagonal groove of the screw does not have a protection structure, and the service life of the screw is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fastening durable type inner hexagonal thin cylindrical stud machine screw, which solves the problems that in the process of screwing the conventional screw, the screw is not tightly connected with a threaded hole, the screw is not tightly installed, the screw does not have good firmness and corrosion resistance, a hexagonal groove of the screw does not have a protection structure, and the service life of the screw is short.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fastening durable type allen head bolt, includes the screw main part, the screw main part includes first connector, second connector and connection pad, the one end fixedly connected with second connector of first connector, the one end fixedly connected with connection pad of second connector, the one end fixedly connected with screw thread post of connection pad, the mounting groove has been seted up to the one end of screw thread post, the bottom fixedly connected with spring of mounting groove, the one end fixed connection of spring is in the one end of elasticity post, just the elasticity post alternates with the mounting groove and is connected, the screw thread post includes wearing layer, firm layer, corrosion-resistant layer and basic unit, the inboard fixedly connected with firm layer of wearing layer, the inboard fixedly connected with corrosion-resistant layer on firm layer, the inboard fixedly connected with basic unit on corrosion-resistant layer.

As a preferable technical solution of the present invention, a hexagonal groove is formed in the center of the other end of the first connecting body, and a protection pad is fixedly connected to the side of the hexagonal groove.

In a preferred embodiment of the present invention, a guard ring is fixedly connected to an outer side of the other end of the first connector.

As a preferable technical scheme of the present invention, an oil storage tank is provided inside the second connecting body, an oil filling tank communicated with the oil storage tank is provided at the center of the top of the second connecting body, and a plurality of oil through tanks communicated with the oil storage tank are provided at the outer side of the second connecting body.

As a preferable technical solution of the present invention, a plurality of reinforcing blocks are fixedly provided inside the solid layer.

As a preferable technical solution of the present invention, the first connecting body is provided with anti-slip threads on an outer side thereof.

Compared with the prior art, the utility model has the beneficial effects that: the screw can compress the elasticity post of bottom at the in-process of screwing up, and the screw is connected more closely with the screw hole for the screw is installed fastening more, and the screw has good tightness and corrosion protection nature, and the hexagonal groove of screw also has protection architecture, and the screw has longer life like this.

Drawings

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

FIG. 2 is a schematic view of a threaded post structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the mounting groove of the present invention;

FIG. 4 is a top view of the first connector of the present invention;

FIG. 5 is a schematic view of the internal structure of the second connector according to the present invention.

In the figure: 1. a screw body; 2. a first connecting body; 3. a second connector; 4. a connecting disc; 5. a threaded post; 6. a spring; 7. an elastic column; 8. a wear layer; 9. a solid layer; 10. a corrosion-resistant layer; 11. a base layer; 12. a protection pad; 13. a guard ring; 14. an oil injection groove; 15. and (6) introducing an oil groove.

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.

Referring to fig. 1-5, the utility model provides a fastening durable type inner hexagonal thin round column head machine screw, comprising a screw main body 1, wherein the screw main body 1 comprises a first connector 2, a second connector 3 and a connecting disc 4, one end of the first connector 2 is fixedly connected with the second connector 3, one end of the second connector 3 is fixedly connected with the connecting disc 4, one end of the connecting disc 4 is fixedly connected with a threaded column 5, one end of the threaded column 5 is provided with a mounting groove, the bottom of the mounting groove is fixedly connected with a spring 6, one end of the spring 6 is fixedly connected with one end of an elastic column 7, the elastic column 7 is in penetrating connection with the mounting groove, the threaded column 5 comprises a wear-resistant layer 8, a firm layer 9, a corrosion-resistant layer 10 and a base layer 11, the inner side of the wear-resistant layer 8 is fixedly connected with the firm layer 9, the inner side of the firm layer 9 is fixedly connected with the corrosion-resistant layer 10, the inner side of the corrosion-resistant layer 10 is fixedly connected with the base layer 11, the wearing layer 8 is made by silica, and firm layer 9 is made by metal chromium, and corrosion-resistant layer 10 is made by epoxy, and basic unit 11 is made by metal iron, and the screw can compress the elasticity post 7 of bottom at the in-process of screwing up, and the screw is connected more closely with the screw hole for the screw is installed fastening more, and the screw has good sturdiness and corrosion resistance, and the hexagonal groove of screw also has protection architecture, and the screw has longer life like this.

Preferably, a hexagonal groove is formed in the center of the other end of the first connecting body 2, a protection pad 12 is fixedly connected to the side of the hexagonal groove, and the protection pad 12 can protect the hexagonal groove from being abraded, so that a user can tighten the screw through the hexagonal groove better.

Preferably, a protection ring 13 is fixedly connected to the outer side of the other end of the first connection body 2, and the protection ring 13 can protect the head of the screw from being damaged by external impact to some extent.

Preferably, the oil storage tank is arranged in the second connecting body 3, the oil filling tank 14 communicated with the oil storage tank is arranged in the center of the top of the second connecting body 3, the oil filling tanks 15 communicated with the oil storage tank are arranged on the outer side of the second connecting body 3, when a user screws the screw to a proper position, lubricating oil can be injected into the oil storage tank through the oil filling tanks 14 and flows downwards along the outer surface of the screw through the oil filling tanks 14, so that the surface of the screw can be lubricated, and the service life of the screw is prolonged.

Preferably, a plurality of reinforcing blocks are fixedly arranged inside the solid layer 9, so that the firmness of the screw can be enhanced.

Preferably, the first connecting body 2 is provided with anti-slip threads on the outer side thereof, and sometimes it is necessary to screw the screw by hand so that the screw has certain anti-slip property.

When the fastening durable type inner hexagonal thin round column head machine screw is used for screwing the screw, when the screw is screwed, the elastic column 7 firstly touches the bottom of the threaded hole, the elastic column 7 compresses the spring 6 in the installation groove, then the elastic column 7 is compressed until the screw is screwed, so that the screw is connected with the threaded hole more tightly, the screw is installed more tightly, meanwhile, the second connecting body 3 is internally provided with an oil storage groove, the center of the top of the second connecting body 3 is provided with an oil injection groove 14 communicated with the oil storage groove, the outer side of the second connecting body 3 is provided with a plurality of oil through grooves 15 communicated with the oil storage groove, when a user screws to a proper position, lubricating oil can be injected into the oil storage groove through the oil injection groove 14 and flows downwards along the outer surface of the screw through the oil injection groove 14, so that the surface of the screw can be lubricated, and the service life of the screw is prolonged, the hexagonal groove is formed in the center of the other end of the first connecting body 2, the protection pad 12 is fixedly connected to the side of the hexagonal groove, the hexagonal groove can be protected by the protection pad 12 from being abraded, a user can tighten the screw through the hexagonal groove better, the anti-skid grains are formed in the outer side of the first connecting body 2, the screw needs to be screwed by hands sometimes, and therefore the screw has certain anti-skid performance.

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 various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a fasten durable type allen thin round column head machine screw, includes screw main part (1), its characterized in that: the screw main body (1) comprises a first connecting body (2), a second connecting body (3) and a connecting disc (4), wherein the second connecting body (3) is fixedly connected to one end of the first connecting body (2), the connecting disc (4) is fixedly connected to one end of the second connecting body (3), a threaded column (5) is fixedly connected to one end of the connecting disc (4), a mounting groove is formed in one end of the threaded column (5), a spring (6) is fixedly connected to the bottom of the mounting groove, one end of the spring (6) is fixedly connected to one end of an elastic column (7), the elastic column (7) is connected with the mounting groove in an alternating mode, the threaded column (5) comprises a wear-resistant layer (8), a firm layer (9), a corrosion-resistant layer (10) and a base layer (11), and the firm layer (9) is fixedly connected to the inner side of the wear-resistant layer (8), the inner side of the solid layer (9) is fixedly connected with a corrosion-resistant layer (10), and the inner side of the corrosion-resistant layer (10) is fixedly connected with a base layer (11).

2. The tightening durable type hexagon socket head cap machine screw according to claim 1, wherein: a hexagonal groove is formed in the center of the other end of the first connecting body (2), and a protection pad (12) is fixedly connected to the side of the hexagonal groove.

3. The tightening durable type hexagon socket head cap machine screw according to claim 1, wherein: and a protection ring (13) is fixedly connected to the outer side of the other end of the first connecting body (2).

4. The tightening durable type hexagon socket head cap machine screw according to claim 1, wherein: an oil storage tank is arranged in the second connecting body (3), an oil filling tank (14) communicated with the oil storage tank is arranged at the center of the top of the second connecting body (3), and a plurality of oil through grooves (15) communicated with the oil storage tank are arranged on the outer side of the second connecting body (3).

5. The tightening durable type hexagon socket head cap machine screw according to claim 1, wherein: a plurality of reinforcing blocks are fixedly arranged inside the solid layer (9).

6. The tightening durable type hexagon socket head cap machine screw according to claim 1, wherein: the outer side of the first connecting body (2) is provided with anti-skid grains.