CN2851691Y - Dual-head screw - Google Patents
Dual-head screw Download PDFInfo
- Publication number
- CN2851691Y CN2851691Y CN 200520119432 CN200520119432U CN2851691Y CN 2851691 Y CN2851691 Y CN 2851691Y CN 200520119432 CN200520119432 CN 200520119432 CN 200520119432 U CN200520119432 U CN 200520119432U CN 2851691 Y CN2851691 Y CN 2851691Y
- Authority
- CN
- China
- Prior art keywords
- screw
- timber
- utility
- model
- head screw
- 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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Abstract
The utility model discloses a double-head screw for the connection between wood, which is sharp at both ends and thick in the middle part. Both of the two ends are provided with self-tapping screw threads. The utility model has the advantages that the structure is simple, the operation is convenient and rapid, and a large amount of other metal expendable materials can be saved. The double-head screw for the connection between wood has great significance in terms of raising work efficiency, reducing production cost and saving resources.
Description
Technical field
The utility model relates to the improvement of screw, especially the improvement of wood screw.
Background technique
When making furniture, indoor and outdoor decoration or constructed display rack, panel etc., usually need timber and timber are connected and fixed.The way that timber and timber are coupled together commonly used is to hole on timber, tumbles in nut, bolt is screwed in again.This mode complicated operation that is connected and fixed, consumptive material is many, the cost height.
The model utility content
The purpose of this utility model provides a kind of simple in structure, operation and is used for the dowel screw that is connected between timber and the timber easily.
For reaching above-mentioned purpose, the utility model adopts following technological scheme: the centre pointed at both ends of this dowel screw is thick, and all there is screw thread at two.
As a kind of improvement, the screw thread at described screw two is Thread Forming TF.
During use, metallic sheath on a headgear of screw, timber is aimed in the other end, knocks metallic sheath with hammer, and timber is just thrown into rapidly in the other end of screw; Take off metallic sheath then, throw in another piece timber for one that screw is exposed with hammer again.Like this, dowel screw just can be fast, directly, securely two blocks of timber have been connected and fixed.
Dowel screw of the present utility model is simple in structure, and is easy and simple to handle quick, can save a large amount of other metal consumptive materials simultaneously, for increasing work efficiency, reduce production costs and economizing on resources, significance arranged all.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described in detail.
Fig. 1 is the structural representation of dowel screw of the present utility model.
Fig. 2 utilizes dowel screw of the present utility model to connect the structural representation of two blocks of timber.
Embodiment
As shown in Figure 1, the centre pointed at both ends of screw 1 is thick, and all there is Thread Forming TF 11 at two, just as two existing tapping screw heads near, the shape that afterbody is outside.During use, length is about half metallic sheath of dowel screw length on a headgear of screw, or puts the metallic sheath of diameter less than the dowel screw middle part, and timber 2 is aimed in the other end, knocks metallic sheath with hammer, and the other end of screw is just thrown into timber 2 rapidly; Take off metallic sheath then, throw 2 li in another piece timber into for one that screw is exposed with hammer again.Like this, dowel screw just can be fast, directly, securely two blocks of timber have been connected and fixed.As shown in Figure 2.
Claims (2)
1, a kind of dowel screw is characterized in that: the centre pointed at both ends of screw is thick, and all there is screw thread (11) at two.
2, dowel screw according to claim 1 is characterized in that: the screw thread (11) at described screw two is Thread Forming TF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119432 CN2851691Y (en) | 2005-12-05 | 2005-12-05 | Dual-head screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119432 CN2851691Y (en) | 2005-12-05 | 2005-12-05 | Dual-head screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851691Y true CN2851691Y (en) | 2006-12-27 |
Family
ID=37585648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119432 Expired - Fee Related CN2851691Y (en) | 2005-12-05 | 2005-12-05 | Dual-head screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851691Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090205A (en) * | 2015-08-28 | 2015-11-25 | 杨晓方 | Special-shaped screw |
| CN108730300A (en) * | 2018-07-06 | 2018-11-02 | 北京金晟达生物电子科技有限公司 | A kind of fastener |
-
2005
- 2005-12-05 CN CN 200520119432 patent/CN2851691Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090205A (en) * | 2015-08-28 | 2015-11-25 | 杨晓方 | Special-shaped screw |
| CN108730300A (en) * | 2018-07-06 | 2018-11-02 | 北京金晟达生物电子科技有限公司 | A kind of fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20131205 |