CN214998714U

CN214998714U - Self-tapping screw

Info

Publication number: CN214998714U
Application number: CN202121558247.7U
Authority: CN
Inventors: 唐松旺; 李岳霖; 周凤霞
Original assignee: Shanghai Xinbiao Machinery Co ltd
Current assignee: Shanghai Xinbiao Machinery Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-03
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a self tapping screw, include: screw head, screw pole and location structure, location structure includes locating piece and location awl, the top surface that the location awl was installed at the locating piece is close to the edge, the vertical setting of screw pole sets up the helicitic texture on the outer wall of bottom surface middle part and screw pole of screw head, the locating piece is discoid and the surface has seted up the through-hole, be provided with the internal thread of being connected with the screw pole on the through-hole inner wall. The utility model discloses installed location structure on self tapping screw, can avoid the screw to take place the phenomenon of skew at the in-process that closes soon to a certain extent through location structure. Along with the deepening of screw, location structure removes to the screw head direction, until receiving the groove of accomodating in, the spring in the groove of accomodating supports the locating piece screw head, can avoid the screw to take place the slippage, improves connection stability.

Description

Self-tapping screw

Technical Field

The utility model relates to a self tapping screw technical field, more specifically are self tapping screws.

Background

The self-tapping screw is generally pointed, coarse, hard wood screw, aluminum alloy and plastic. One particular self-tapping screw for tapping metal holes is known as a tap. The self-tapping screw is used for nonmetal or softer metal, and bottom holes and tapping are not needed; the self-tapping screw is pointed, so that self-tapping can be realized; the common screws are flat-headed and consistent in thickness.

At present, the existing self-tapping screw is not convenient to position when in use, the screw is easy to incline, the connection quality is influenced, and the self-tapping screw is easy to slip in long-time use. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self tapping screw has solved current self tapping screw and has been not convenient for fix a position it when using, causes the screw slope easily, influences the connection quality, and in long-time use, self tapping screw easily causes the problem of slippage, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: a self-tapping screw comprising: screw head, screw pole and location structure, location structure includes locating piece and location awl, the top surface that the location awl was installed at the locating piece is close to the edge, the vertical setting of screw pole sets up the helicitic texture on the outer wall of bottom surface middle part and screw pole of screw head, the locating piece is discoid and the surface has seted up the through-hole, be provided with the internal thread of being connected with the screw pole on the through-hole inner wall.

As an optimized embodiment of the present invention, the positioning cones are provided with four and distributed in an annular equal distance, and the terminal convergent of the positioning cones forms a tip.

As an embodiment of the present invention, the bottom surface of the screw head has been provided with a storage groove, the storage groove is of an annular structure and has a spring inside, and the lower end of the spring is fixed with a rubber plate.

As a preferred embodiment of the present invention, the rubber plate is circular and has a side wall attached to the inner wall of the storage groove.

As a preferred embodiment of the present invention, the size of the positioning block is smaller than the size of the storage groove, and the upper end of the positioning block is embedded into the storage groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the utility model discloses, installed location structure on self tapping screw, can avoid the screw to take place the phenomenon of skew at the in-process that closes soon to a certain extent through location structure.

(2) Along with the deepening of screw, location structure removes to the screw head direction, until receiving the groove of accomodating in, the spring in the groove of accomodating supports the locating piece screw head, can avoid the screw to take place the slippage, improves connection stability.

Drawings

Fig. 1 is an external structure view of the tapping screw according to the present invention;

fig. 2 is an internal structure view of the tapping screw of the present invention.

In the figure, 1, a screw head; 2. a screw shaft; 3. positioning blocks; 4. positioning a cone; 5. a receiving groove; 6. a spring; 7. a rubber plate; 8. and a through hole.

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. 1-2, the present invention provides a technical solution: a self-tapping screw comprising: screw head 1, lead screw 2 and location structure, location structure includes locating piece 3 and location awl 4, location awl 4 is installed and is close to the edge at the top surface of locating

piece

3, 2 vertical settings of lead screw set up the helicitic texture on the bottom surface middle part of screw head 1 and the outer wall of lead screw 2, locating piece 3 is discoid and the surface has seted up through-hole 8, be provided with the internal thread of being connected with lead screw 2 on the 8 inner walls of through-hole, location structure has played the effect of location to the screw, the through-hole 8 of locating piece 3 is corresponding with the connecting hole, reduce the situation of screw slope.

In a further improved mode, the positioning cones 4 are arranged four in number and distributed in an annular equal distance mode, the tail ends of the positioning cones 4 are gradually reduced to form tip ends, and the positioning cones 4 improve the positioning stability of the positioning blocks 3.

Further improve ground, screw head 1's bottom surface has been seted up and has been accomodate groove 5, accomodates groove 5 and be annular structure and internally mounted has spring 6, and spring 6's lower extreme is fixed with rubber slab 7, plays certain guard action.

Further improved ground, rubber sheet 7 is the ring form and the lateral wall is connected with the laminating of the 5 inner walls in groove of accomodating, and when not using, the lower extreme of accomodating groove 5 is arranged in to rubber, seals the 5 lower extremes in groove of accomodating, avoids the dust to get into.

Specifically, the size of the positioning block 3 is smaller than that of the storage groove 5, and the upper end of the positioning block 3 is embedded into the storage groove 5, and the positioning block 3 is stored into the storage groove 5 along with the screwing.

The utility model discloses when using, with location structure's location awl 4 and panel contact to correspond the through-hole 8 of kicking block with the connecting hole or the connection position of panel, then reuse the screw rifle with screw in through-hole 8 and beat the screw operation. Along with the deepening of screw, location structure removes to screw head 1 direction, until receiving in holding groove 5, holds spring 6 in the groove 5 and supports 3 screw heads 1 of locating piece, can avoid the screw to take place the slippage, improves connection stability.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-tapping screw comprising: screw head (1), lead screw (2) and location structure, its characterized in that: location structure includes locating piece (3) and location awl (4), the top surface of locating piece (3) is close to the edge in location awl (4) is installed, the vertical setting of lead screw (2) sets up helicitic texture on the outer wall of bottom surface middle part and lead screw (2) of screw head (1), locating piece (3) are discoid and the surface has seted up through-hole (8), be provided with the internal thread of being connected with lead screw (2) on through-hole (8) inner wall.

2. A self-tapping screw as defined in claim 1, wherein: location awl (4) are provided with four altogether and are annular equidistance and distribute, and the terminal convergent tip that forms of location awl (4).

3. A self-tapping screw as defined in claim 1, wherein: the bottom surface of screw head (1) has been seted up and has been accomodate groove (5), it is annular structure and internally mounted spring (6) to accomodate groove (5), the lower extreme of spring (6) is fixed with rubber slab (7).

4. A self-tapping screw as defined in claim 3, wherein: the rubber plate (7) is in a ring shape, and the side wall of the rubber plate is attached to the inner wall of the accommodating groove (5).

5. A self-tapping screw as defined in claim 1, wherein: the size of the positioning block (3) is smaller than that of the accommodating groove (5), and the upper end of the positioning block (3) is embedded into the accommodating groove (5).