CN206545633U - A kind of New self-tapping screw - Google Patents
A kind of New self-tapping screw Download PDFInfo
- Publication number
- CN206545633U CN206545633U CN201720245063.2U CN201720245063U CN206545633U CN 206545633 U CN206545633 U CN 206545633U CN 201720245063 U CN201720245063 U CN 201720245063U CN 206545633 U CN206545633 U CN 206545633U
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- CN
- China
- Prior art keywords
- tapping screw
- self
- stainless steel
- outer layer
- askew
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Abstract
The utility model discloses a kind of New self-tapping screw, including stainless steel outer layer, toughness inner core and anti-askew pad, the stainless steel outer layer includes nail rod, the nail rod is provided with screw thread, the screw thread center is provided with breach, the nail rod upper end is installed with nail lid, the nail lid center is provided with cross bath, the nail rod bottom is installed with ailhead, it is described to prevent askew pad located at ailhead and nail rod junction, the anti-askew pad center is provided with and stainless steel outer layer diameter identical circular hole, the toughness inner core is fixedly installed within stainless steel outer layer, by setting toughness inner core and stainless steel outer layer, both the high surface hardness of self-tapping screw had been met, its overall flexibility is improved again, so that self-tapping screw can more easily control pierce matrix, and be not easy to be twisted into two parts, prevent askew pad by setting, effectively prevent self-tapping screw when tightening up a screw on askew situation, by setting breach on screw thread, the bits of attacking for making self-tapping screw be produced when attacking hole are discharged easily.
Description
Technical field
The utility model is related to screw production technical field, specially a kind of New self-tapping screw.
Background technology
Self-tapping screw, is a kind of screw with drill bit, refers to that the self-tapping screw for not needing attaching nut to use passes through special
Electric tool is constructed, and drilling, tapping, fixation, locking are once completed, and self-tapping screw is mainly used in some companies compared with sheet member
Connect and fixed, the connection of such as color steel and color steel, color steel and purlin, the connection of wall beam etc..
At present in our widely used self-tapping screws, and generally existing once several point defects：It is first, simple in construction,
At present mostly self-tapping screw all be using carburizing steel or stainless steel manufacture, be in order to meet the high surface hardness of self-tapping screw, from
And self-tapping screw is pierced matrix, still, due to have passed through cure process, self-tapping screw but becomes very crisp, is easily screwed
It is disconnected, in the case of not having vertically when attacking hole particularly, easily fracture；Secondly, the less consideration of self-tapping screw now used
The askew situation on when tightening up a screw, i.e., do not carry out preventing askew processing accordingly to self-tapping screw, influence its actual use, it makes
Existing with efficiency and stability can room for promotion；Further, since attacking bits attacking Kong Shihui and being produced between tooth line, and it is accumulated in hole
Discharge is difficult, the difficulty that self-tapping screw attacks hole can be so increased, or even certain damage can be produced to tooth line, makes the tight of self-tapping screw
Tenacity declines, and service life reduction.
Utility model content
To achieve the above object, the utility model provides following technical scheme：A kind of New self-tapping screw, including stainless steel
Outer layer, toughness inner core and anti-askew pad, the stainless steel outer layer include nail rod, and the nail rod is provided with screw thread, the screw thread
Centre is provided with breach, and the nail rod upper end is installed with nail lid, and the nail lid center is provided with cross bath, and the nail rod bottom is consolidated
Dingan County is equipped with ailhead, described to prevent askew pad located at ailhead and nail rod junction, the anti-askew pad center be provided with outside stainless steel
Layer diameter identical circular hole, the toughness inner core is fixedly installed within stainless steel outer layer, is provided with outside the stainless steel outer layer
Zinc coat.
As a kind of preferred technical scheme of the utility model, the angle of the screw thread is 30 °, and its width is 2.5mm.
As a kind of preferred technical scheme of the utility model, the trend of the breach and screw thread is described to lack in 60 ° of angles
The width of mouth is 1.5mm.
As a kind of preferred technical scheme of the utility model, a diameter of 18mm for preventing askew pad, its thickness is
1mm, and be the concave surface to ailhead direction radially.
As a kind of preferred technical scheme of the utility model, the ailhead is 45 ° of tip type.
Compared with prior art, the beneficial effects of the utility model are：The New self-tapping screw, by setting by Low Carbon Iron
The toughness inner core being made and the stainless steel outer layer being made up of carburizing steel or stainless steel, the high surface for both having met self-tapping screw are hard
Degree, adds the overall flexibility of self-tapping screw again, outer just interior soft, so that self-tapping screw can more easily control pierce matrix, and
It is not easy to be twisted into two parts；Secondly, by setting vertical anti-askew pad on self-tapping screw head, self-tapping screw is effectively prevent upper
Upper askew situation, completely dispenses with the angle problem for worrying self-tapping screw, substantially increases its service efficiency and stability during screw；
In addition, by setting breach on screw thread, making the bits of attacking that self-tapping screw is produced when attacking hole discharge easily, accelerating self-tapping screw and attack
The efficiency in hole, prevents it from producing damage to tooth line, improves the fastening strength and service life of self-tapping screw.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model toughness core arrangement schematic diagram.
In figure：1- stainless steel outer layers；2- toughness inner cores；3- prevents askew pad；4- nail rods；5- screw threads；6- breach；7- nail lids；
8- cross baths；9- ailheads；10- circular holes；11- zinc coats.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Embodiment：
Fig. 1 and Fig. 2 are referred to, the utility model provides a kind of technical scheme：A kind of New self-tapping screw, including stainless steel
Outer layer 1, toughness inner core 2 and anti-askew pad 3, the stainless steel outer layer 1 include nail rod 4, and the nail rod 4 is provided with screw thread 5, described
The center of screw thread 5 is provided with breach 6, and the upper end of nail rod 4 is installed with nail lid 7, and the center of nail lid 7 is provided with cross bath 8, institute
State the bottom of nail rod 4 and be installed with ailhead 9, it is described to prevent askew pad 3 located at ailhead 9 and the junction of nail rod 4, it is described to prevent askew pad 3
Center is provided with to be fixedly installed within stainless steel outer layer 1 with the diameter identical circular hole 10 of stainless steel outer layer 1, the toughness inner core 2,
The outside of stainless steel outer layer 1 is provided with zinc coat 11.
Preferably, the angle of the screw thread 5 is 30 °, and its width is 2.5mm；The trend of the breach 6 and screw thread 5 is in
60 ° of angles, the width of the breach 6 is 1.5mm；The a diameter of 18mm for preventing askew pad 3, its thickness is 1mm, and is to nail
The concave surface of first 9 direction radially；The ailhead 9 is 45 ° of tip type.
Specifically used mode and advantage：The New self-tapping screw, the toughness inner core being made up by setting of Low Carbon Iron and by
The stainless steel outer layer that carburizing steel or stainless steel is made, had both met the high surface hardness of self-tapping screw, self-tapping screw is added again
Overall flexibility, it is outer just in it is soft so that self-tapping screw can more easily control pierce matrix, and be not easy to be twisted into two parts；Secondly, lead to
Cross and vertical anti-askew pad be set on self-tapping screw head, effectively prevent self-tapping screw when tightening up a screw on askew situation, it is complete
The full angle problem without worrying self-tapping screw, substantially increases its service efficiency and stability；In addition, by being set on screw thread
Breach is put, the bits of attacking that self-tapping screw is produced when attacking hole is discharged easily, accelerates the efficiency that self-tapping screw attacks hole, prevent it to tooth
Line produces damage, improves the fastening strength and service life of self-tapping screw.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of New self-tapping screw, it is characterised in that：Including stainless steel outer layer（1）, toughness inner core（2）With anti-askew pad（3）,
The stainless steel outer layer（1）Including nail rod（4）, the nail rod（4）It is provided with screw thread（5）, the screw thread（5）Center is provided with breach
（6）, the nail rod（4）Upper end is installed with nail lid（7）, the nail lid（7）Center is provided with cross bath（8）, the nail rod
（4）Bottom is installed with ailhead（9）, it is described to prevent askew pad（3）Located at ailhead（9）With nail rod（4）Junction, it is described to prevent askew pad
Piece（3）Center is provided with and stainless steel outer layer（1）Diameter identical circular hole（10）, the toughness inner core（2）It is fixedly installed in stainless
Steel outer layer（1）Within, the stainless steel outer layer（1）Outside is provided with zinc coat（11）.
2. a kind of New self-tapping screw according to claim 1, it is characterised in that：The screw thread（5）Angle be 30 °,
Its width is 2.5mm.
3. a kind of New self-tapping screw according to claim 1, it is characterised in that：The breach（6）With screw thread（5）Walk
To in 60 ° of angles, the breach（6）Width be 1.5mm.
4. a kind of New self-tapping screw according to claim 1, it is characterised in that：It is described to prevent askew pad（3）It is a diameter of
18mm, its thickness is 1mm, and is to ailhead（9）The concave surface of direction radially.
5. a kind of New self-tapping screw according to claim 1, it is characterised in that：The ailhead（9）For 45 ° of tip
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245063.2U CN206545633U (en) | 2017-03-14 | 2017-03-14 | A kind of New self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245063.2U CN206545633U (en) | 2017-03-14 | 2017-03-14 | A kind of New self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545633U true CN206545633U (en) | 2017-10-10 |
Family
ID=59995664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720245063.2U Expired - Fee Related CN206545633U (en) | 2017-03-14 | 2017-03-14 | A kind of New self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545633U (en) |
-
2017
- 2017-03-14 CN CN201720245063.2U patent/CN206545633U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 |