CN201858235U - Outer pentagonal screw - Google Patents
Outer pentagonal screw Download PDFInfo
- Publication number
- CN201858235U CN201858235U CN2010202904154U CN201020290415U CN201858235U CN 201858235 U CN201858235 U CN 201858235U CN 2010202904154 U CN2010202904154 U CN 2010202904154U CN 201020290415 U CN201020290415 U CN 201020290415U CN 201858235 U CN201858235 U CN 201858235U
- Authority
- CN
- China
- Prior art keywords
- head
- screw
- utility
- model
- bar portion
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses an outer pentagonal screw, which comprises a head (1) and a stem (2). The head (1) is integrally connected with the stem (2), and an outer pentagon (3) is arranged on the outer side of the head (1). When the screw is screwed by an outer pentagonal wrench matching with the outer pentagonal screw, at least four corners of the outer pentagon (3) on the head are stressed, and accordingly the problem that a tool is easy to slip when driving the head (1) to rotate is solved. The outer pentagonal screw belongs to the technical field of screws.
Description
Technical field
The utility model belongs to the screw technical field, especially relates to a kind of outer pentagonal screw.
Background technique
Screw of the prior art generally comprises head and bar portion, head and bar portion are connected as a single entity, head is provided with outer-hexagonal outward, frequently be screwed into especially or the occasion of the screw of back-outing for needs, there is following technological deficiency in the screw of said structure: most outer-hexagonal screws be screwed into back-out can image two plate holders that are interpreted as live the symmetrical both sides of outer-hexagonal screw, rotate by two clamping plate time then and drive screw and rotate.The application of force on the external HEX HEAD CAP SCREWS of this mode only acts on wherein two angles of outer-hexagonal screw, under the bigger situation of the application of force, skids easily between instrument and the screw, and screw is easily twisted bad.
The model utility content
Technical problem to be solved in the utility model is: the outer pentagonal screw that is difficult for skidding when providing a kind of and instrument to rotate together.
Technical solution adopted in the utility model is: a kind of outer pentagonal screw, comprise head and bar portion, and head and bar portion are connected as a single entity, and the outside of described head is provided with Wai Wujiao, and bar subordinate end portion is provided with screw thread.
The beneficial effects of the utility model are: head is provided with Wai Wujiao simultaneously, is screwed into or can uses the outer five jiao Wrenchs supporting with it when back-outing screw, and is easy to use; When turning screw with the supporting outer five jiaos of spanners of the utility model, outer five jiaos have at least four angles stressed on the head, thereby have solved between instrument and the screw easily problem of slip.
Description of drawings
Fig. 1 is a general structure schematic representation of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Among the figure, 1. head, 2. bar portion, 3. outer five jiaos, 4. screw thread.
Embodiment
Below be the utility model preferred embodiment, but therefore do not limit protection domain of the present utility model.
With reference to Fig. 1, shown in Figure 2, a kind of embodiment of the outer pentagonal screw of the utility model, it comprises head 1 and bar portion 2, and head 1 is connected as a single entity with bar portion 2, and the outside of described head 1 is provided with outer five jiao 3, and described bar portion 2 end portions are provided with screw thread 4.Described outer five jiao 3 just head 1 excircle be pentagon.Outer five jiao 3 of head 1 matches with outer five jiaos of spanners.Can drive screw with outer five jiaos of spanners when practical and rotate,, be different from Hexagon, therefore not have symmetrical limit because the utility model head 1 excircle is pentagon.When turning screw with the supporting outer five jiaos of spanners of the utility model, outer five jiao 3 has at least four angles stressed on the head 1.The easy problem of slip of screw when thereby the instrument that solved drives the screw rotation.
Claims (1)
1. an outer pentagonal screw comprises head (1) and bar portion (2), and head (1) is connected as a single entity with bar portion (2), and it is characterized in that: the outside of described head (1) is provided with Wai Wujiao (3), and described bar portion (2) end portion is provided with screw thread (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202904154U CN201858235U (en) | 2010-08-09 | 2010-08-09 | Outer pentagonal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202904154U CN201858235U (en) | 2010-08-09 | 2010-08-09 | Outer pentagonal screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858235U true CN201858235U (en) | 2011-06-08 |
Family
ID=44104042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202904154U Expired - Fee Related CN201858235U (en) | 2010-08-09 | 2010-08-09 | Outer pentagonal screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858235U (en) |
-
2010
- 2010-08-09 CN CN2010202904154U patent/CN201858235U/en not_active Expired - Fee Related
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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: 20110608 Termination date: 20130809 |