CN209083762U - A kind of double notch self tapping Self Drilling Screws of hexagonal flange - Google Patents
A kind of double notch self tapping Self Drilling Screws of hexagonal flange Download PDFInfo
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- CN209083762U CN209083762U CN201821831636.0U CN201821831636U CN209083762U CN 209083762 U CN209083762 U CN 209083762U CN 201821831636 U CN201821831636 U CN 201821831636U CN 209083762 U CN209083762 U CN 209083762U
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- notch
- clast
- self
- cutting
- bar portion
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Abstract
The utility model relates to a kind of screw, in particular to the double notch self tapping Self Drilling Screws of a kind of hexagonal flange.Its structure includes the bar portion that head is connected with lower head, the bar portion periphery is provided with screw thread, the bar portion lower end connects cutting portion, the cutting portion includes the blade in front and the knife spine at rear, the blade root is provided with cutting face, and the knife spine side at the rear in the cutting face is provided with clast discharge notch.The knife spine with clast discharge notch in the utility model, so that the clast generated in boring procedure can be smoothly discharged by it, the sharpness of cutting portion not will receive clast influence in this way, penetration rate is than very fast, and blade becomes smaller with drilled component contact face and keeps its more labor-saving, and it is very easy to use.
Description
Technical field
The utility model relates to a kind of screw, in particular to the double notch self tapping Self Drilling Screws of a kind of hexagonal flange.
Background technique
Self Drilling Screws, the connection installation being widely used between the metal plates such as stainless steel, metal foil, galvanized steel plain sheet.It bores
The surface hardness and the center portion thereof hardness of tail screw are higher than general self-tapping screw, and Self Drilling Screws is collection, is tightened in primary work
The screw of industry.
Drill tail screw structure specifically includes that head, bar portion and cutting portion, and wherein cutting portion is the key that realize to bore to attack function
Position.The cutting portion of existing Self Drilling Screws is generally bladed, when work the cutting portion rotation of bladed to by the component of drilling tail into
Row drilling, then to be threaded engagement in the sharpness that cutting portion is had the disadvantage that by the components interior of drilling tail can be with making
With smaller and smaller, so that the speed of drilling is reduced, so that using very inconvenient.Also, during drilling tail, the metal fillings that drills out
The drilling effect of screw can be seriously affected.
Summary of the invention
In order to solve problems in the prior art, the utility model provides a kind of double notch self tapping drilling tail spiral shells of hexagonal flange
Silk, not only penetration rate is fast, and laborsaving.
Technical solution used by the utility model is as follows:
A kind of double notch self tapping Self Drilling Screws of hexagonal flange, including the bar portion that head is connected with lower head, the bar portion
Periphery is provided with screw thread, and the bar portion lower end connects cutting portion, and cutting portion includes the blade in front and the knife spine at rear, the knife
Sword root is provided with cutting face, and the knife spine side at the rear in the cutting face is provided with clast discharge notch.
It is 2 that notch, which is discharged, in clast, is separated by double notch lands.
Technical solution provided by the utility model has the benefit that
The knife spine with clast discharge notch in the utility model, so that the clast generated in boring procedure can pass through it
It is smoothly discharged, the sharpness of such cutting portion not will receive clast influence, and penetration rate is than very fast, and blade and drilled hole portion
Part contact surface, which becomes smaller, keeps its more labor-saving, very easy to use.
A kind of double notch self tapping Self Drilling Screws of hexagonal flange of the utility model, it is more laborsaving relative to similar product,
It is laborsaving up to 30% or more under identical use environment.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural front view of the double notch self tapping Self Drilling Screws of hexagonal flange of the utility model；
Fig. 2 is the partial structurtes enlarged diagram (front) of Fig. 1；
Fig. 3 is the partial structurtes enlarged diagram (reverse side) of Fig. 1.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Embodiment one
As shown in attached drawing 1,2, a kind of double notch self tapping Self Drilling Screws of hexagonal flange, including connected below head 1 and head 1
Bar portion 2,2 periphery of bar portion is provided with screw thread 3, and 2 lower end of bar portion connects cutting portion, and cutting portion includes the blade in front
4 and rear knife spine 5,4 root of blade is provided with cutting face 6,5 side of the knife spine setting at the rear in the cutting face 6
There is clast that notch 7 is discharged.
In the present embodiment, it is 2 that notch 7, which is discharged, in clast, is separated by double notch lands 8.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (2)
1. the double notch self tapping Self Drilling Screws of a kind of hexagonal flange, including the bar portion that head is connected with lower head, outside the bar portion
It encloses and is provided with screw thread, the bar portion lower end connects cutting portion, which is characterized in that the cutting portion includes the blade in front with after
The knife spine of side, the blade root are provided with cutting face, and the knife spine side at the rear in the cutting face is provided with clast discharge
Notch.
2. a kind of double notch self tapping Self Drilling Screws of hexagonal flange according to claim 1, which is characterized in that the clast
It is 2 that notch, which is discharged, is separated by double notch lands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821831636.0U CN209083762U (en) | 2018-11-08 | 2018-11-08 | A kind of double notch self tapping Self Drilling Screws of hexagonal flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821831636.0U CN209083762U (en) | 2018-11-08 | 2018-11-08 | A kind of double notch self tapping Self Drilling Screws of hexagonal flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083762U true CN209083762U (en) | 2019-07-09 |
Family
ID=67123011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821831636.0U Active CN209083762U (en) | 2018-11-08 | 2018-11-08 | A kind of double notch self tapping Self Drilling Screws of hexagonal flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209083762U (en) |
-
2018
- 2018-11-08 CN CN201821831636.0U patent/CN209083762U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |