CN213451234U

CN213451234U - Snap-in type double-lug self-drilling screw

Info

Publication number: CN213451234U
Application number: CN202022478922.7U
Authority: CN
Inventors: 闫方可
Original assignee: Hebei Jinzuo Fastener Co ltd
Current assignee: Hebei Jinzuo Fastener Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-06-15
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a clamping type ears bores tail screw, concretely relates to machinery accessories technical field, including boring tail screw body, the bottom of boring tail screw body is provided with the hexagonal bit, first connecting screw hole has been seted up to the bottom of boring tail screw body, the first connecting block of top fixedly connected with of hexagonal bit, the surface of first connecting block is provided with the screw thread, one side of boring tail screw body is provided with the extension and bores the tail screw, the extension bores the top fixedly connected with second connecting block of tail screw, the surface of second connecting block is provided with the screw thread, second connecting screw hole has been seted up to the bottom of extension brill tail screw. The utility model has the advantages of simple and reasonable structural design, can make the block type ears bore the tail screw and possess can elongated function, the drill bit that the block type ears bored the tail screw has moreover bad can be changed, need not bore the tail screw abandonment with whole block type ears, saved the material, the practicality is strong.

Description

Snap-in type double-lug self-drilling screw

Technical Field

The utility model relates to a machinery accessories technical field, more specifically say, the utility model relates to a clamping type ears bores tail screw.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. The self-drilling screw is a screw with a self-tapping drilling head at the front end of the screw. The screw is a common invention in production and life of people for thousands of years, and is the first invention of human according to the application field. The self-drilling screw is a new invention of people in recent years and is also called a self-drilling screw. The screw is the general expression of fastener, and daily oral wording, the afterbody of boring tail screw is boring tail or sharp tail form, need not auxiliary machining, can directly drill on setting material, basic material, tapping, locking, practices thrift the engineering time by a wide margin. Compared with common screws, the screw has high drawing force and holding force, can not loosen after being combined for a long time, and is simple to finish operation by using the safe punching power wire at one time.

The clamping type double-lug self-drilling screw is also a type of self-drilling screw, the processed length of the existing clamping type double-lug self-drilling screw has a plurality of specific specification and size, but when the clamping type double-lug self-drilling screw is used in certain specific environments, the requirement on the length of the clamping type double-lug self-drilling screw is strict, the existing size cannot meet the requirement, and a certain period is needed when the clamping type double-lug self-drilling screw is customized in a factory, so that the clamping type double-lug self-drilling screw is required to have a function of being lengthened, a drill bit used by the clamping type double-lug self-drilling screw is easy to damage, and then workers generally waste the whole clamping type double-lug self.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a clamping type ears bores tail screw, bores tail screw lengthened structure and removable drill bit's structure through having set up to make clamping type ears to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a clamping type ears bores tail screw, includes bores tail screw body, the bottom of boring tail screw body is provided with the hex bit, first connecting thread hole has been seted up to the bottom of boring tail screw body, the first connecting block of top fixedly connected with of hex bit, the surface of first connecting block is provided with the screw thread, one side of boring tail screw body is provided with the extension and bores the tail screw, the top fixedly connected with second connecting block of extension brill tail screw, the surface of second connecting block is provided with the screw thread, second connecting thread hole has been seted up to the bottom of extension brill tail screw, it all fixes being provided with the spiral twisting piece with the outer wall of extension brill tail screw to bore tail screw body, the screw thread direction of first connecting thread hole and second connecting thread hole is opposite with the screw thread direction of spiral twisting piece.

In a preferred embodiment, a hexagonal tightening block is fixedly connected to the top end of the self-drilling screw body, and a hexagonal tightening hole is formed in the top end of the hexagonal tightening block.

In a preferred embodiment, a reinforcing block is fixedly connected to the bottom end of the hexagonal tightening block, and the cross-sectional shape of the reinforcing block is circular.

In a preferred embodiment, a circular sealing gasket is sleeved on the top of the self-drilling screw body, and the circular sealing gasket is made of a rubber material.

In a preferred embodiment, the lug bodies are fixedly connected to both sides of the hexagonal drill.

In a preferred embodiment, the depth of the first connecting threaded hole is set to be half of the length of the self-drilling screw body.

In a preferred embodiment, a hexagonal protective cap is arranged at the top of the hexagonal tightening block, a hexagonal hole is formed at the bottom end of the hexagonal protective cap, and the hexagonal hole is matched with the structure of the hexagonal tightening block.

The utility model discloses a technological effect and advantage:

1. the lengthened self-drilling screw is fixedly connected with the self-drilling screw body in a threaded connection mode through the self-drilling screw body, the hexagonal drill bit, the first connecting threaded hole, the second connecting threaded hole, the first connecting block, the second connecting block, the lengthened self-drilling screw and the spiral twisted piece, thereby realizing the lengthening of the self-drilling screw body, connecting the hexagonal drill bit with the lengthened self-drilling screw or the self-drilling screw body in a threaded connection mode, thereby the hexagonal drill bit can be replaced, the spiral twisting sheet can make the self-drilling screw body more easily drill objects, and the thread direction of the first connecting thread hole and the second connecting thread hole is opposite to the thread direction of the spiral twisted piece, when the self-drilling screw body drills an object, the hexagonal drill bit is connected with the self-drilling screw body or the lengthened self-drilling screw more tightly, and the lengthened self-drilling screw is also connected with the self-drilling screw body more tightly;

2. by arranging the hexagonal screwing blocks and the hexagonal screwing holes, the hexagonal screwing blocks and the hexagonal screwing holes can be screwed by the screwing tools, when one of the hexagonal tightening block and the hexagonal tightening hole is damaged when being tightened, the other one can be continuously tightened, the practicability is improved, and by arranging the reinforcing block, the strength of the self-drilling screw body can be enhanced, water can be prevented from permeating into the joint of the self-drilling screw body and an object by arranging the circular sealing gasket, the self-drilling screw body is prevented from being corroded, and by arranging the lug body, can lead the self-drilling screw body to be more tightly connected with an object and prevent the self-drilling screw body from loosening, through having set up hexagon helmet and hexagonal hole, screw up the piece block through hexagon helmet and hexagon and be connected, can the effectual protection hexagon piece of screwing up, reduce the hexagon and screw up the piece and be corroded.

Drawings

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

Fig. 2 is the structural schematic diagram of the self-drilling screw body and the lengthened self-drilling screw of the present invention.

Fig. 3 is the structural schematic diagram of the self-drilling screw body and the hexagonal drill bit of the present invention.

Fig. 4 is the structural schematic diagram of the lengthened self drilling screw and the hexagonal drill of the present invention.

The reference signs are: 1. a self drilling screw body; 2. a hexagonal bit; 3. a first connection threaded hole; 4. a second connecting threaded hole; 5. a first connection block; 6. a second connecting block; 7. lengthening a self drilling screw; 8. spirally twisting the sheet; 9. a hexagonal tightening block; 10. hexagonal screwing holes; 11. a reinforcing block; 12. a circular seal gasket; 13. an ear body; 14. a hexagonal protective cap; 15. hexagonal holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The clamping type double-lug self-drilling screw shown in the attached figures 1-4 comprises a self-drilling screw body 1, a hexagonal drill bit 2 is arranged at the bottom of the self-drilling screw body 1, a first connecting threaded hole 3 is formed in the bottom end of the self-drilling screw body 1, a first connecting block 5 is fixedly connected to the top end of the hexagonal drill bit 2, threads are arranged on the outer surface of the first connecting block 5, an lengthened self-drilling screw 7 is arranged on one side of the self-drilling screw body 1, a second connecting block 6 is fixedly connected to the top end of the lengthened self-drilling screw 7, threads are arranged on the outer surface of the second connecting block 6, a second connecting threaded hole 4 is formed in the bottom end of the lengthened self-drilling screw 7, a spiral twisted piece 8 is fixedly arranged on the outer walls of the self-drilling screw body 1 and the lengthened self-drilling screw 7, and the thread directions of the first connecting threaded hole 3 and the second.

As shown in the attached drawing 1, the hexagonal screwing block 9 is fixedly connected to the top end of the self-drilling screw body 1, the hexagonal screwing hole 10 is formed in the top end of the hexagonal screwing block 9, the hexagonal screwing block 9 can be screwed by a screwing tool, the hexagonal screwing hole 10 can be screwed, when one of the hexagonal screwing block 9 and the hexagonal screwing hole 10 is damaged during screwing, the other one can be screwed continuously, and the practicability is improved.

As shown in the attached figure 1, the bottom end of the hexagonal tightening block 9 is fixedly connected with a reinforcing block 11, and the sectional shape of the reinforcing block 11 is circular, so as to enhance the strength of the self-drilling screw body 1.

As shown in the attached figure 1, the top cover of the self drilling screw body 1 is provided with a circular sealing gasket 12, the circular sealing gasket 12 is made of rubber materials, and the self drilling screw body 1 is prevented from being corroded in order to prevent water from permeating into the joint of the self drilling screw body 1 and an object.

As shown in the attached drawing 2, the lug bodies 13 are fixedly connected to the two sides of the hexagonal drill bit 2, the depth of the first connection threaded hole 3 is set to be half of the length of the self-drilling screw body 1, and the depth of the first connection threaded hole 3 is deep enough, so that the lengthened self-drilling screw 7 is connected with the self-drilling screw body 1 more tightly.

As shown in the attached drawing 1, the top of the hexagonal screwing block 9 is provided with a hexagonal helmet 14, the bottom end of the hexagonal helmet 14 is provided with a hexagonal hole 15, the hexagonal hole 15 is matched with the structure of the hexagonal screwing block 9, and the hexagonal screwing block 9 is prevented from being corroded for effectively protecting the hexagonal screwing block 9.

The utility model discloses the theory of operation: firstly, a second connecting block 6 fixedly connected with the top end of an extended self-drilling screw 7 is aligned with a first connecting threaded hole 3 formed at the bottom end of a self-drilling screw body 1, the extended self-drilling screw 7 is fixedly connected with the self-drilling screw body 1 in a threaded connection mode through threads arranged on the outer surface of the second connecting block 6, so that the self-drilling screw body 1 is extended, a first connecting block 5 fixedly connected with the top end of a hexagonal drill bit 2 is aligned with a second connecting threaded hole 4 formed at the bottom end of the extended self-drilling screw 7 or is aligned with a first connecting threaded hole 3 formed at the bottom end of the self-drilling screw body 1, the hexagonal drill bit 2 is connected with the extended self-drilling screw 7 or the self-drilling screw body 1 in a threaded connection mode, so that the hexagonal drill bit 2 can be replaced, and the outer walls of the self-drilling screw body 1 and the extended self-drilling screw 7 are both fixedly provided with screw twisting pieces, the self-drilling screw body 1 can be more easily drilled into an object, the thread directions of the first connecting thread hole 3 and the second connecting thread hole 4 are opposite to the thread direction of the spiral twisting sheet 8, when the self-drilling screw body 1 is drilled into the object, the hexagonal drill bit 2 is more tightly connected with the self-drilling screw body 1 or the lengthened self-drilling screw 7, the lengthened self-drilling screw 7 is also more tightly connected with the self-drilling screw body 1, the hexagonal tightening block 9 is fixedly connected to the top end of the self-drilling screw body 1, the hexagonal tightening hole 10 is formed in the top end of the hexagonal tightening block 9, the hexagonal tightening block 9 and the hexagonal tightening hole 10 can be tightened by a hexagonal tightening tool, when one of the hexagonal tightening block 9 and the tightening hole 10 is damaged during tightening, the other hexagonal tightening hole can also be continuously tightened, the practicability is improved, and by arranging the reinforcing block 11, can strengthen brill tail screw body 1's intensity, top cover through boring tail screw body 1 is equipped with circular sealed pad 12, can prevent that water from permeating into the junction of brill tail screw body 1 and object, make brill tail screw body 1 corrosion, through the equal fixedly connected with ear body 13 in hexagonal drill bit 2's both sides, can make brill tail screw body 1 be connected more closely with the object, it is not hard up to prevent to bore tail screw body 1, the hexagonal hole 15 cover of seting up hexagonal helmet 14 bottom is on the hexagonal piece 9 top of screwing up, hexagonal helmet 14 is connected with hexagonal piece 9 block of screwing up, can effectual protection hexagon piece 9 of screwing up, it is corroded to reduce hexagonal piece 9 of screwing up.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a snap type ears bores tail screw, includes bores tail screw body (1), its characterized in that: a hexagonal drill bit (2) is arranged at the bottom of the self-drilling screw body (1), a first connecting threaded hole (3) is formed at the bottom end of the self-drilling screw body (1), the top end of the hexagonal drill bit (2) is fixedly connected with a first connecting block (5), the outer surface of the first connecting block (5) is provided with threads, one side of the self-drilling screw body (1) is provided with a lengthened self-drilling screw (7), the top end of the lengthened self drilling screw (7) is fixedly connected with a second connecting block (6), the outer surface of the second connecting block (6) is provided with threads, the bottom end of the lengthened self drilling screw (7) is provided with a second connecting threaded hole (4), the outer walls of the self-drilling screw body (1) and the lengthened self-drilling screw (7) are both fixedly provided with spiral twisting sheets (8), the thread direction of the first connecting thread hole (3) and the second connecting thread hole (4) is opposite to the thread direction of the spiral twisted piece (8).

2. The snap-in type binaural self-drilling screw of claim 1, wherein: the top end of the self-drilling screw body (1) is fixedly connected with a hexagonal screwing block (9), and a hexagonal screwing hole (10) is formed in the top end of the hexagonal screwing block (9).

3. The snap-in type binaural self-drilling screw of claim 2, wherein: the bottom end of the hexagonal screwing block (9) is fixedly connected with a reinforcing block (11), and the cross section of the reinforcing block (11) is circular.

4. The snap-in type binaural self-drilling screw of claim 1, wherein: the top cover of brill tail screw body (1) is equipped with circular sealed pad (12), circular sealed pad (12) are made by the rubber material.

5. The snap-in type binaural self-drilling screw of claim 1, wherein: both sides of the hexagonal drill bit (2) are fixedly connected with ear bodies (13).

6. The snap-in type binaural self-drilling screw of claim 1, wherein: the depth of the first connecting threaded hole (3) is set to be half of the length of the self-drilling screw body (1).

7. The snap-in type binaural self-drilling screw of claim 2, wherein: the top of hexagonal screwing block (9) is provided with hexagonal helmet (14), hexagonal hole (15) have been seted up to the bottom of hexagonal helmet (14), hexagonal hole (15) and the structure phase-match of hexagonal screwing block (9).