CN203670396U - High-strength self-tapping screw for elevator - Google Patents
High-strength self-tapping screw for elevator Download PDFInfo
- Publication number
- CN203670396U CN203670396U CN201320754273.6U CN201320754273U CN203670396U CN 203670396 U CN203670396 U CN 203670396U CN 201320754273 U CN201320754273 U CN 201320754273U CN 203670396 U CN203670396 U CN 203670396U
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- CN
- China
- Prior art keywords
- square column
- screw
- threaded rod
- elevator
- screw rod
- 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 relates to a high-strength self-tapping screw for an elevator. The high-strength self-tapping screw is formed by coaxially connecting a cross-shaped groove round head and a threaded rod, the tail of the threaded rod is conical and extends to form a locating sharp beak, a square column table is coaxially manufactured between the round head and the threaded rod, the left end face of the square column table is internally tangent with the round head, and the right end face of the square column table is externally tangent with the threaded rod. The square column table is manufactured between the round head and the threaded rod so that the screw can be prevented from rotating, self locking can be achieved after installation, and slipping is not prone to being caused. The tail of the threaded rod extends to form the locating sharp beak, and the locating and guiding effects are achieved.
Description
Technical field
The utility model belongs to screw field, relates to elevator screw, the high-strength tapping screw of especially a kind of elevator.
Background technique
The application of screw in industry is very extensive, and the intensity in different fields to screw and specification have different requirements.The screw using in elevator field requires must be firm, and strength is large.It is all generally high-lift operation that elevator is installed, and uses that common screw on market easily rotates, skids in the time that elevator spare part is installed, bad fixed position, easily skids off again after fixing, intensity is low, and easily drops in operating.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of intensity high, and accurate positioning is difficult for the high-strength tapping screw of elevator sliding.
The technological scheme that the utility model technical solution problem adopts is:
The high-strength tapping screw of a kind of elevator, connected and composed by cross recess round end and screw coaxial, the afterbody of screw rod is conical, extend and be shaped with a locating tip mouth at the afterbody of screw rod, between round end and screw rod, be coaxially shaped with a square column platform, the left side of square column platform is inscribed within round end, outside the right side of square column platform, is cut in screw rod.
And four angles of square column platform and screw rod contact jaw are fillet.
Advantage of the present utility model and good effect are:
1, this screw is shaped with square column platform between round end and screw rod, can prevent screw turns, can self-locking after installation, be not easy to skid off.
2, this screw extends the locating tip mouth being shaped with at screw rod tail, has the effect of positioning and guiding.
3, this screw is made fillet by four jiaos of square column platform, has reduced stress and has concentrated, and be convenient to assembling.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model
Fig. 2 is the right elevation of Fig. 1
Fig. 3 is the left view of Fig. 1
Embodiment:
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The high-strength tapping screw of a kind of elevator, is is coaxially connected and composed by cross recess round end 1 and screw rod 3, and the afterbody of screw rod is conical, extends and is shaped with a locating tip mouth 4 at the afterbody of screw rod.Between round end and screw rod, be coaxially shaped with a square column platform 2, the left side of square column platform is inscribed within round end, outside the right side of square column platform, is cut in screw rod, and four angles of square column platform right side are fillet.
Claims (2)
1. the high-strength tapping screw of elevator, connected and composed by cross recess round end and screw coaxial, the afterbody of screw rod is conical, it is characterized in that: extend and be shaped with a locating tip mouth at the afterbody of screw rod, between round end and screw rod, be coaxially shaped with a square column platform, the left side of square column platform is inscribed within round end, outside the right side of square column platform, is cut in screw rod.
2. the high-strength tapping screw of elevator according to claim 1, is characterized in that: four angles of square column platform and screw rod contact jaw are fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754273.6U CN203670396U (en) | 2013-11-25 | 2013-11-25 | High-strength self-tapping screw for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754273.6U CN203670396U (en) | 2013-11-25 | 2013-11-25 | High-strength self-tapping screw for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670396U true CN203670396U (en) | 2014-06-25 |
Family
ID=50966699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754273.6U Expired - Fee Related CN203670396U (en) | 2013-11-25 | 2013-11-25 | High-strength self-tapping screw for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670396U (en) |
-
2013
- 2013-11-25 CN CN201320754273.6U patent/CN203670396U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |