CN212272763U

CN212272763U - Novel self-drilling screw

Info

Publication number: CN212272763U
Application number: CN202020523582.2U
Authority: CN
Inventors: 秦方文; 徐德负
Original assignee: Jiangsu Gude Construction Machinery Co ltd
Current assignee: Jiangsu Gude Construction Machinery Co ltd
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2021-01-01
Anticipated expiration: 2030-04-11

Abstract

The utility model discloses a novel self-drilling screw, including fixed block, spacing fender frame and screw rod, the side is provided with the coiled hair on the fixed block, and the side has seted up the cross hole on the coiled hair, spacing fender frame sets up the side on the coiled hair, and spacing fender frame sets up the outside on the cross hole, the screw rod sets up at the fixed block downside, and the screw rod lateral surface sets up screw thread, and the screw thread winding sets up at the screw rod lateral surface simultaneously, the screw rod downside is provided with the drill bit, and the drill bit downside is provided with the drill point, the drill bit left and right sides face all is provided with the dop, and the dop setting is between the drill point. This novel self-drilling screw is provided with spacing fender frame, when using the self-drilling screw, through set up spacing fender frame in the overhead cross hole of coiled hair outside, makes like this when the use tool is installed the self-drilling screw, through the limiting displacement of spacing fender frame, causes the condition that the instrument is difficult to take place to squint the cross hole, causes the self-drilling screw installation more convenient.

Description

Novel self-drilling screw

Technical Field

The utility model particularly relates to a bore tail screw technical field, specifically be a novel bore tail screw.

Background

The self-tapping screw is a tool for circularly and progressively fastening machine parts by utilizing the physics and mathematical principle of the friction force of an inclined plane circular rotating box of an object, the self-tapping screw is a screw with a self-tapping drilling head at the front end of the screw, and the screw is a general term of a fastening piece.

The existing self-drilling screw is lack of limiting measures on the cross hole on the upper side of the self-drilling screw, so that the self-drilling screw cannot be used when a pan head is ground, and the existing self-drilling screw bottom limiting drill bit is poor in using effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel self-drilling screw to lack spacing measure on solving the present self-drilling screw upside cross hole that proposes in the above-mentioned background art, cause the coiled hair to be ground and bore the self-drilling screw at ordinary times just unable use, the not good problem of result of use of present self-drilling screw bottom spacing drill bit in addition.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel self-drilling screw, includes fixed block, spacing fender frame and screw rod, the side is provided with the coiled hair on the fixed block, and the side has seted up the cross hole on the coiled hair, spacing fender frame sets up the side on the coiled hair, and the spacing fender frame setting outside on the cross hole, the screw rod sets up at the fixed block downside, and the screw rod lateral surface sets up the screw thread, and the screw thread winding sets up at the screw rod lateral surface simultaneously, the screw rod downside is provided with the drill bit, and the drill bit downside is provided with the drill point, the drill bit left and right sides face all is provided with the dop, and the dop setting is.

Preferably, the diameter of the lower side surface of the pan head is equal to the size of the upper side surface of the fixing block.

Preferably, the shape of the limiting stopper frame in plan view is the same as the shape of the cross hole in plan view.

Preferably, the diameter of the screw is smaller than the diameter of the lower side surface of the fixed block.

Preferably, the bottom view of the structure between the drill blade and the drill bit is in a cross shape.

Preferably, the chucks are symmetrically disposed about a central axis of the drill bit.

Compared with the prior art, the beneficial effects of the utility model are that: the novel self-drilling screw is provided with a screw head,

(1) the limiting blocking frame is arranged, and when the self-drilling screw is used, the limiting blocking frame is arranged on the outer side of the cross hole on the pan head, so that when the self-drilling screw is mounted by using a tool, the tool is not easy to deviate from the cross hole due to the limiting effect of the limiting blocking frame, and the self-drilling screw is more convenient to mount;

(2) the chuck is arranged, when the self drilling screw is used, the chuck is arranged on the drill bit at the lower end of the self drilling screw, so that when the self drilling screw is installed, the drill bit enters the installation area, and the situation that the drill bit is not easy to fall off and slide is achieved under the action of the chuck.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. the device comprises a fixing block, 2, a pan head, 3, a cross hole, 4, a limiting blocking frame, 5, a screw, 6, threads, 7, a drill bit, 8, a drill blade, 9 and a clamping head.

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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a novel self-drilling screw, as shown in fig. 1 and 2, the side is provided with coiled hair 2 on 1 fixed block, and the cross hole 3 has been seted up to the side on the coiled hair 2, the diameter of 2 downside of coiled hair equals the side size on 1 fixed block, it is better to make the fastness of being connected between coiled hair 2 and the fixed block 1 like this, spacing fender frame 4 sets up the side on the coiled hair 2, and spacing fender frame 4 sets up the outside on cross hole 3, the overlooking shape of spacing fender frame 4 is the same with the overlooking shape of cross hole 3, make the instrument can enter into cross hole 3 inside like this, make the instrument be difficult to take place the condition of skew cross hole 3 through spacing fender frame 4 simultaneously.

As shown in fig. 3, screw rod 5 sets up at 1 downside of fixed block, and screw rod 5 lateral surface has seted up screw thread 6, screw rod 5's diameter is less than the diameter of 1 downside of fixed block, it shelters from the effect to make fixed block 1 play to the mounting hole like this, screw thread 6 winding sets up at 5 lateral surfaces of screw rod simultaneously, screw rod 5 downside is provided with drill bit 7, and the drill bit 7 downside is provided with drill bit 8, the shape is the cross for looking up of structure between drill bit 8 and the drill bit 7, make like this that drill bit 7 more conveniently enter into the mounting region inside, 7 left and right sides of drill bit all are provided with dop 9, and dop 9 sets up between drill bit 8, dop 9 sets up about the axis symmetry of drill bit 7, when making drill bit 7 enter into the mounting hole inside through.

The working principle is as follows: when the novel self-drilling screw is used, the drill bit 7 at the lower end of the screw rod 5 corresponds to the mounting hole, the self-drilling screw is mounted by using a tool at the moment, the tool connector enters the cross hole 3 on the pan head 2, the self-drilling screw can be mounted, the tool is not easy to deviate from the cross hole 3 when the self-drilling screw is mounted by the aid of the limiting blocking frame 4 arranged on the outer side of the cross hole 3, the self-drilling screw is more convenient to mount, the drill bit 7 is more convenient to enter the mounting hole under the action of the drill blade 8, the drill bit 7 is not easy to slide under the action of the clamping head 9, the screw rod 5 enters the mounting hole at the moment, the thread 6 is arranged on the outer surface of the screw rod 5, the connection effect between the screw rod 5 and the mounting hole is better, and the self-drilling screw is convenient to mount, and the connection is better, and the content which is not described in detail in the specification belongs to the prior art which is known by the person skilled in the art.

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 invention.

Claims

1. The utility model provides a novel self drilling screw, includes fixed block (1), spacing fender frame (4) and screw rod (5), its characterized in that: the side is provided with coiled hair (2) on fixed block (1), and the cross hole (3) have been seted up to the side on coiled hair (2), spacing fender frame (4) set up the side on coiled hair (2), and spacing fender frame (4) set up the outside on cross hole (3), screw rod (5) set up at fixed block (1) downside, and screw rod (5) lateral surface set up screw thread (6), and screw thread (6) winding sets up at screw rod (5) lateral surface simultaneously, screw rod (5) downside is provided with drill bit (7), and drill bit (7) downside is provided with drill bit (8), drill bit (7) left and right sides face all is provided with dop (9), and dop (9) set up between drill bit (8).

2. The novel self-drilling screw of claim 1, wherein: the diameter of the lower side surface of the pan head (2) is equal to the size of the upper side surface of the fixing block (1).

3. The novel self-drilling screw of claim 1, wherein: the overlooking shape of the limiting blocking frame (4) is the same as the overlooking shape of the cross hole (3).

4. The novel self-drilling screw of claim 1, wherein: the diameter of the screw rod (5) is smaller than that of the lower side face of the fixed block (1).

5. The novel self-drilling screw of claim 1, wherein: the upward view shape of the structure between the drill edge (8) and the drill bit (7) is a cross shape.

6. The novel self-drilling screw of claim 1, wherein: the clamping heads (9) are symmetrically arranged relative to the central axis of the drill bit (7).