CN206495868U - A kind of tapping screw - Google Patents
A kind of tapping screw Download PDFInfo
- Publication number
- CN206495868U CN206495868U CN201621397670.2U CN201621397670U CN206495868U CN 206495868 U CN206495868 U CN 206495868U CN 201621397670 U CN201621397670 U CN 201621397670U CN 206495868 U CN206495868 U CN 206495868U
- Authority
- CN
- China
- Prior art keywords
- screw
- thread
- tipped
- head
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Abstract
The utility model provides a kind of tapping screw, including head of screw, screw rod and screw-tipped, one end of the screw rod is connected with head of screw, the other end of the screw rod is connected with screw-tipped, the large-diameter thread and thread angle that spiral is respectively equipped with that thread angle is 63 degree upwards on the screw rod are 60 degree of minor diameter screw threads, each circle of the large-diameter thread is provided with inclined rectangle concave tooth, and the screw-tipped is provided with chip area.The utility model have the advantages that it is time saving, laborsaving, improve efficiency, can repeatedly be tightened and loosening can be prevented, service life length, adapt to particular surroundings.
Description
Technical field
The utility model is related to technical field of fastening, and in particular to a kind of tapping screw.
Background technology
Tapping screw is voluntarily to attack to get out one kind of negative thread joined together and have in the prebored hole of metal or nonmetallic materials
Threaded fasteners.Tapping screw is used for the connection between thin metallic plate (steel plate, saw plate etc.).During connection, first to connected piece
Thread Pilot hole is made, then tapping screw is screwed into the thread Pilot hole of connected piece.Because the thread surface of tapping screw has
Higher hardness, can in the thread Pilot hole of connected piece tapping internal thread, so as to form connection.When high rigidity steel plate incite somebody to action from
When attacking screw and being screwed into, because high rigidity steel plate hardness is high, so existing tapping screw in the art it is very laborious when being screwed into, it is necessary to
Spend longer time could be by screw-driving, and when being tightened again after screw disassembling, due to tightening for the first time
The larger internal thread through tapping, so connection not enough fastening occurs in secondary tighten, the fastness reduction of connection, locking
Poor performance, screw through also occurring loosening, obscission after a period of time, because the steel plate is used in acid or alkali environment
, thus common screw in such a case the time once grow occur get rusty, the phenomenon that is corroded occurs so that screw
Service life is short.
Utility model content
The purpose of this utility model is to provide a kind of time saving, laborsaving, raising efficiency, can repeatedly be tightened and and can prevented
Only loosening, service life length, the tapping screw for adapting to particular surroundings.
To achieve these goals, the new technical scheme of this practicality is：
A kind of tapping screw, including head of screw, screw rod and screw-tipped, one end of the screw rod are connected with head of screw,
The other end of the screw rod is connected with screw-tipped, and to be respectively equipped with thread angle upwards big for 63 degree for spiral on the screw rod
Diameter thread and thread angle are 60 degree of minor diameter screw threads, and the diameter spiral of the large-diameter thread gradually increases upwards, described
Each circle of large-diameter thread is provided with inclined rectangle concave tooth, and the screw-tipped is provided with chip area.
Further, the screw-tipped is provided with zinc chrome coat.
Further, the head of screw, screw rod and screw-tipped are all stainless steel material.
Further, the head of screw is soket head cap screw head.
The beneficial effects of the utility model are：By being respectively equipped with the large-diameter thread that thread angle is 63 degree on screw rod
It is 60 degree of minor diameter screw threads with thread angle, and inclined rectangle concave tooth is provided with each circle of large-diameter thread, and
The diameter spiral of the large-diameter thread is gradually to increase upwards, and screw-tipped is provided with chip area, is twisted by tapping screw
When entering in thread Pilot hole, the first rotary cutting thread Pilot hole of minor diameter screw thread first, such cutting output is smaller, when major diameter spiral shell
Rectangle concave tooth is additionally provided with when line is cut, in major diameter, so when the resistance being subject to would not be too big, and thread head is interior hexagonal
Thread head, the so driving moment when being screwed into will be reduced, and can twist tighter by screw, and when being screwed into for the second time again,
The depth of internal thread formed for the first time in thread Pilot hole is not too large, cannot be loosened after when so tightening for the second time；
And tapping screw of the present utility model is made using stainless steel material, and screw-tipped is provided with zinc chrome coat, this
Sample make it that tapping screw adapts to various particular surroundings, and is screwed into more laborsaving during high rigidity steel plate, and this is embodied in summary
Utility model has time saving, laborsaving, raising efficiency, can repeatedly be tightened and and can prevent loosening, service life length, can fit
Answer the advantage of particular surroundings.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing：
A kind of tapping screw as shown in Figure 1, including head of screw 1, screw rod 2 and screw-tipped 3, one end of the screw rod 2
It is connected with head of screw 1, the other end of the screw rod 2 is connected with screw-tipped 3, spiral is set respectively upwards on the screw rod 2
It is 60 degree of minor diameter screw threads 5 to have the large-diameter thread 4 and thread angle that thread angle is 63 degree, the large-diameter thread 4 it is straight
Footpath spiral gradually increases upwards, and each circle of the large-diameter thread 4 is provided with inclined rectangle concave tooth 6, the screw-tipped
It is provided with chip area 7.
Further, the screw-tipped 3 is provided with zinc chrome coat.
Further, the head of screw 1, screw rod 2 and screw-tipped 3 are all stainless steel material.
Further, the head of screw 1 is soket head cap screw head.
By above-mentioned technical proposal, when causing automatic screw to be screwed into high rigidity steel plate, because large-diameter thread 4 and small straight
Footpath screw thread 5, and each circle of large-diameter thread 4 is provided with inclined rectangle concave tooth 6, and also the rectangle concave tooth 6 is along big straight
Footpath spiral is incremental upwards, can effectively remove screw and shoot the torsion increasing problem brought during object, be easier screw
Attacking needs fixed interior of articles, improves and shoots speed, and when being screwed into for the second time again, for the first time the shape in thread Pilot hole
Into depth of internal thread it is not too large, cannot be loosened after when so tightening for the second time；And self tapping of the present utility model
Screw is made using stainless steel material, and screw-tipped is provided with zinc chrome coat, so that tapping screw is adapted to
Various particular surroundings, and be screwed into it is more laborsaving during high rigidity steel plate, embody in summary the utility model have it is time saving, save
Power, improve efficiency, can repeatedly be tightened and loosening, service life length, the advantage for adapting to particular surroundings can be prevented.
It is described above that not this new technical scope is imposed any restrictions, it is all according to the utility model technical spirit to
On embodiment any modification, equivalent variations and the modification made, in the range of still falling within this new technical scheme.
Claims (4)
1. a kind of tapping screw, it is characterised in that：Including head of screw, screw rod and screw-tipped, one end of the screw rod and screw
Head is connected, and the other end of the screw rod is connected with screw-tipped, and spiral is respectively equipped with thread angle upwards on the screw rod
Large-diameter thread and thread angle for 63 degree are 60 degree of minor diameter screw threads, and the diameter spiral of the large-diameter thread is upward gradually
Increase, and each circle of the large-diameter thread is provided with inclined rectangle concave tooth, the screw-tipped is provided with chip area.
2. a kind of tapping screw according to claim 1, it is characterised in that：The screw-tipped is provided with zinc chrome coat.
3. a kind of tapping screw according to claim 1, it is characterised in that：The head of screw, screw rod and screw-tipped are all
For stainless steel material.
4. a kind of tapping screw according to claim 1, it is characterised in that：The head of screw is soket head cap screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397670.2U CN206495868U (en) | 2016-12-20 | 2016-12-20 | A kind of tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397670.2U CN206495868U (en) | 2016-12-20 | 2016-12-20 | A kind of tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495868U true CN206495868U (en) | 2017-09-15 |
Family
ID=59801508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397670.2U Expired - Fee Related CN206495868U (en) | 2016-12-20 | 2016-12-20 | A kind of tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981015A (en) * | 2019-05-21 | 2020-11-24 | 株式会社托普拉 | External thread component |
-
2016
- 2016-12-20 CN CN201621397670.2U patent/CN206495868U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981015A (en) * | 2019-05-21 | 2020-11-24 | 株式会社托普拉 | External thread component |
| CN111981015B (en) * | 2019-05-21 | 2022-06-14 | 株式会社托普拉 | External thread component |
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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: 20170915 |