CN203214543U - Screw - Google Patents
Screw Download PDFInfo
- Publication number
- CN203214543U CN203214543U CN 201320172966 CN201320172966U CN203214543U CN 203214543 U CN203214543 U CN 203214543U CN 201320172966 CN201320172966 CN 201320172966 CN 201320172966 U CN201320172966 U CN 201320172966U CN 203214543 U CN203214543 U CN 203214543U
- Authority
- CN
- China
- Prior art keywords
- screw
- terminal
- tooth line
- outer diameter
- threads
- 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 - Lifetime
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a screw and particularly relates to the screw applicable to a wood-plastic product. The screw comprises a screw head (1), a screw column body (2) and threads (3). The screw column body (2) is formed on the bottom surface of the screw head (1) and is in a cone shape, the threads (3) are threadedly formed in the outer surface of the screw column body (2), the section (31) of the threads is gradually changed from an initial triangle to a terminal trapezoid, and the top outer diameter D2 of the threads (3) is increased by 20% compared with the tail outer diameter D1 of the screws. The screw increases the stress strength between the screw and an object, can save labor and meanwhile have high locking strength when in usage, and can be reused for the same fixing hole of the wood-plastic product to achieve locking.
Description
Technical field:
The utility model relates to a kind of screw, relates in particular to a kind of screw for wood-plastic products.
Background technique:
Wood plastic composite be a kind of be main raw material by agriculture and forestry organic waste material and waste or used plastics mainly, the high-tech green material of making through die apparatus heating extruding and moulding again after mixing, have the performance of timber and plastics concurrently, so wood-plastic products has obtained using widely, but because the nonelastic and ductility of material behavior that wood is moulded, so it is undesirable to use common screw to carry out fastening effect, particularly fixed hole influences entire firmness and the quality of product using the fastening back of screw to be difficult to locking more for the second time.
The model utility content:
The purpose of this utility model is exactly in order to solve existing issue, and a kind of screw is provided, and has increased the force intensity that is subjected to of screw and object, and laborsaving but also sealed intensity height not only during use can be realized reusing and locking with a fixed hole to wood-plastic products.
Technology solution of the present utility model is as follows:
A kind of screw, include screw terminal, the screw cylinder, the tooth line, described screw column is body formed in the screw terminal bottom surface, and the screw cylinder is coniform, and tooth line spiral forming is in the screw column external surface, the initial cross section of tooth line fades to the trapezoidal of tooth line terminal cross section by triangle, and tooth line top D outer diameter 2 increases by 20% than terminal D outer diameter 1.
Preferably, described screw terminal diameter is 5mm, and the screw column body length is 15mm, and the terminal D outer diameter 1 of tooth line is 2.5mm.
The beneficial effects of the utility model are:
The initial cross section of the utility model tooth line fades to the trapezoidal of tooth line terminal cross section by triangle, laborsaving but also sealed intensity height not only during use, tooth line top D outer diameter 2 increases by 20% than terminal D outer diameter 1, can realize reusing and locking with a fixed hole to wood-plastic products.
Description of drawings:
Fig. 1 is the utility model structural representation.
Among the figure: screw terminal 1; Screw cylinder 2; Tooth line 3; The initial cross section 31 of tooth line; Tooth line terminal cross section 32.
Embodiment:
As shown in Figure 1, a kind of screw, include screw terminal 1, screw cylinder 2, tooth line 3, described screw cylinder 2 takes shape in screw terminal 1 bottom surface, screw cylinder 2 is coniform, tooth line 3 spiral formings are in screw cylinder 2 outer surfaces, and tooth line 3 initial cross sections 31 fade to the trapezoidal of tooth line 3 terminal cross sections 32 by triangle, and tooth line 3 top D outer diameter 2 increase by 20% than terminal D outer diameter 1.
Particularly, described screw terminal 1 diameter is 5mm, and screw cylinder 2 length are 15mm, and tooth line 3 terminal D outer diameter 1 are 2.5mm.
The above only is the embodiment of the preferable specification of the utility model, and those skilled in the art do not make the screw of the different size specification that obtains under the creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (2)
1. screw, include screw terminal (1), screw cylinder (2), tooth line (3), it is characterized in that: described screw cylinder (2) takes shape in screw terminal (1) bottom surface, and screw cylinder (2) is coniform, and tooth line (3) spiral forming is in screw cylinder (2) outer surface, the initial cross section of tooth line (3) (31) fades to the trapezoidal of tooth line (3) terminal cross section (32) by triangle, and tooth line (3) top D outer diameter 2 increases by 20% than terminal D outer diameter 1.
2. screw according to claim 1, it is characterized in that: described screw terminal (1) diameter is 5mm, and screw cylinder (2) length is 15mm, and the terminal D outer diameter 1 of tooth line (3) is 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172966 CN203214543U (en) | 2013-04-09 | 2013-04-09 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172966 CN203214543U (en) | 2013-04-09 | 2013-04-09 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214543U true CN203214543U (en) | 2013-09-25 |
Family
ID=49204086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172966 Expired - Lifetime CN203214543U (en) | 2013-04-09 | 2013-04-09 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504038A (en) * | 2017-08-24 | 2017-12-22 | 柳州市贵高物资有限责任公司 | Screw |
-
2013
- 2013-04-09 CN CN 201320172966 patent/CN203214543U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504038A (en) * | 2017-08-24 | 2017-12-22 | 柳州市贵高物资有限责任公司 | Screw |
| CN107504038B (en) * | 2017-08-24 | 2019-04-19 | 柳州市贵高物资有限责任公司 | Screw |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313000, Zhejiang, Wuxing District, Huzhou City, West Town, Longquan dock eco industrial concentration zone Patentee after: ZHEJIANG GRINWOOD WOOD PLASTIC COMPOSITE CO.,LTD. Address before: 313000, Zhejiang, Wuxing District, Huzhou City, West Town, Longquan dock eco industrial concentration zone Patentee before: HUZHOU GRINWOOD WPC MATERIAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |