CN201636169U - Screw - Google Patents
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- Publication number
- CN201636169U CN201636169U CN2009202145071U CN200920214507U CN201636169U CN 201636169 U CN201636169 U CN 201636169U CN 2009202145071 U CN2009202145071 U CN 2009202145071U CN 200920214507 U CN200920214507 U CN 200920214507U CN 201636169 U CN201636169 U CN 201636169U
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- CN
- China
- Prior art keywords
- screw
- thread
- utility
- screw rod
- secondary attack
- 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
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The embodiment discloses a screw which comprises a screw head and a screw rod; the screw rod is provided with self-tapping threads; and assist threads are arranged between adjacent self-tapping threads on the screw rod. Through the assist threads, the cutting length of the screw disclosed by the embodiment is enhanced and the screw resistance is reduced, so that the screw can easily sink into an object.
Description
Technical field
The utility model relates to a kind of screw.
Background technique
Present screw generally is made of screw rod, screw head.One end of screw rod is most advanced and sophisticated, and bar is provided with Thread Forming TF.Screw is shot fastening piece by most advanced and sophisticated and Thread Forming TF under squeezing action.But in the time of in it screws in object, because inner Integrated Chip can't be discharged, the resistance of screw-in can be increasing, is difficult for sinking in the object.
The model utility content
In view of this, the utility model provides a kind of screw, and resistance is bigger when having solved the existing screw use, is difficult for sinking to the problem in the object.
A kind of screw comprises screw head and screw rod, and screw rod is provided with Thread Forming TF, is provided with the secondary attack screw thread on the described screw rod between adjacent Thread Forming TF.
Preferably, described secondary attack thread depth is lower than described Thread Forming TF, and the Cutting angle of described secondary attack screw thread is 45 °.
Preferably, the tip of described screw rod is provided with breach, and the cambered surface of described breach and screw are tangential on the cusp of screw-tipped along the tangent plane of axis.
Preferably, described screw head is provided with stiffening rib.
From above-mentioned technological scheme as can be seen, the disclosed screw of the utility model embodiment has strengthened the cutting dynamics of screw by the secondary attack screw thread is set, and has reduced the screw-in resistance, and screw can be sunk in the object easily.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment 1 disclosed a kind of screw;
Fig. 2 is the structural representation of the utility model embodiment 2 disclosed a kind of screws;
Fig. 3 is the breach structural representation of the utility model embodiment 2 disclosed screws;
Fig. 4 is the structural representation of the utility model embodiment 3 disclosed a kind of screws.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of screw, and resistance is bigger in use with the screw that solves prior art, is difficult for sinking to the problem in the object.Its embodiment is as follows:
Embodiment one
The structure of the utility model embodiment 1 disclosed screw comprises screw head 11, screw rod 12, Thread Forming TF 13 and secondary attack screw thread 14 as shown in Figure 1.
As seen from Figure 1 on the screw in the present embodiment except that having Thread Forming TF 13, also has secondary attack screw thread 14, secondary attack screw thread 14 is distributed on the screw rod between adjacent Thread Forming TF, the height of secondary attack screw thread 14 is lower than secondary attack screw thread 13, and the angle of secondary attack screw thread 14 and screw axis is that the Cutting angle is 45 °.During use, Thread Forming TF 13 is in shooting object the time, and the Integrated Chip in the secondary attack screw thread 14 scraping holes reduces the resistance that screw is subjected to, and makes screw can be easy to shoot in the object.
Embodiment two
The structure of the utility model embodiment 2 disclosed screws comprises screw head 21, screw rod 22, Thread Forming TF 23, secondary attack screw thread 24 and breach 25 as shown in the figure.
Screw in the present embodiment has a breach 25 at its most advanced and sophisticated position except that having the secondary attack screw thread as seen from Figure 2, and breach 25 structure for amplifying schematic representation as shown in Figure 3.The surface of breach 25 is a cambered surface, and is tangential on most advanced and sophisticated cusp with screw along the tangent plane of axis.The cambered surface of breach 25 is acute angle, and the edge also is an acute angle.When screw is shot timber or wad, timber or the fiber of the edge of breach 25 around can cutting tip can retain the Integrated Chip that some can't be discharged in the breach simultaneously, reduces the resistance of Integrated Chip for screw head, make and use by easier timber or the wad shot of screw energy more convenient.
Embodiment three
The structure of the utility model embodiment 3 disclosed screws comprises screw head 31, screw rod 32, Thread Forming TF 33, secondary attack screw thread 34, breach 35 and stiffening rib 36 as shown in Figure 4.
Screw in the present embodiment is outside the advantage with embodiment's 2 disclosed screws, owing on screw head 31, increased stiffening rib 36, can prevent that on the one hand screw head 31 from deformation taking place, on the other hand because stiffening rib 36 has sharp-pointed seamed edge, in screw head 31 sinks to process in the object, can play the effect of scraping secondary attack, thus realize screw head 31 fast, be easy to sink to.
The angle that the utility model embodiment does not limit secondary attack screw thread and screw axis is 45 °, and 45 is a more excellent cutting angle, the cutting function of screw thread as long as other angle can guarantee to assist.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. a screw comprises screw head and screw rod, and screw rod is provided with Thread Forming TF, it is characterized in that, is provided with the secondary attack screw thread on the described screw rod between adjacent Thread Forming TF.
2. screw according to claim 1 is characterized in that, described secondary attack thread depth is lower than described Thread Forming TF, and the Cutting angle of described secondary attack screw thread is 45 °.
3. screw according to claim 2 is characterized in that the tip of described screw rod is provided with breach, and the cambered surface of described breach and screw are tangential on the cusp of screw-tipped along the tangent plane of axis.
4. screw according to claim 3 is characterized in that described screw head is provided with stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145071U CN201636169U (en) | 2009-11-30 | 2009-11-30 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145071U CN201636169U (en) | 2009-11-30 | 2009-11-30 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636169U true CN201636169U (en) | 2010-11-17 |
Family
ID=43080661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202145071U Expired - Fee Related CN201636169U (en) | 2009-11-30 | 2009-11-30 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167298A (en) * | 2018-01-25 | 2018-06-15 | 南京工程学院 | A kind of object anticracking tapping screw |
| CN110948990A (en) * | 2019-11-26 | 2020-04-03 | 嘉兴百郎新材料科技有限公司 | Bamboo-wood carbon plate and preparation method thereof |
-
2009
- 2009-11-30 CN CN2009202145071U patent/CN201636169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167298A (en) * | 2018-01-25 | 2018-06-15 | 南京工程学院 | A kind of object anticracking tapping screw |
| CN110948990A (en) * | 2019-11-26 | 2020-04-03 | 嘉兴百郎新材料科技有限公司 | Bamboo-wood carbon plate and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI AUTOCRAFT CO., LTD. Free format text: FORMER NAME: AUTOCRAFT INDUSTRIAL(SHANGHAI)LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hunan Pudong Kangqiao Industrial Zone, Shanghai City Road 201300 No. 2502 Patentee after: SHANGHAI AUTOCRAFT CO., LTD. Address before: Hunan Pudong Kangqiao Industrial Zone, Shanghai City Road 201300 No. 2502 Patentee before: Autocraft Industrial ( Shanghai ) Ltd. |
|
| 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: 20101117 Termination date: 20171130 |