CN201318362Y - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN201318362Y CN201318362Y CNU2008201705512U CN200820170551U CN201318362Y CN 201318362 Y CN201318362 Y CN 201318362Y CN U2008201705512 U CNU2008201705512 U CN U2008201705512U CN 200820170551 U CN200820170551 U CN 200820170551U CN 201318362 Y CN201318362 Y CN 201318362Y
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- wall
- sleeve
- setscrew
- expandable
- 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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- Dowels (AREA)
Abstract
The utility model discloses an expansion bolt which comprises a bolt and an expandable sleeve. At least two annular projections are arranged at the outer wall of the expandable end of the expandable sleeve; ribs are arranged on the outer wall of the non-expandable end of the expandable sleeve; and a flanging is arranged at the port of the non-expandable end of the expandable sleeve. The expansion bolt can be mounted firmly and is elegant in appearance and can not rotate and is easy to be taken out from the mounting hole.
Description
[technical field]
The utility model relates to a kind of setscrew.
[background technique]
At present, general setscrew is made up of nut, pull bar, expansion sleeve etc., during installation, at first on wall, hole, pull bar, expansion sleeve are put into the hole, with nut pulling pull bar the expansion sleeve inflating end is expanded then, with the wall hole swelling, the object that is mounted is fixed on the wall.The shortcoming of this setscrew is: the expansion sleeve inflating end has only big end to contact with the wall hole swelling, installs insecure; The pull bar exposed parts is many, and influence is installed attractive in appearance; Expansion sleeve easily rotates in wall hole; Setscrew uses the back to be difficult for taking out, and causes waste.
[summary of the invention]
In view of the problem that present known technology exists, the technical problems to be solved in the utility model is to be to provide a kind of installation firm, elegant in appearance, can not rotate, and is easy to the setscrew that takes out in mounting hole.
For solving the problems of the technologies described above, the utility model takes following technological scheme to finish:
A kind of setscrew comprises screw and expansion sleeve, and the sleeve outer wall of described expansion sleeve inflating end is provided with at least two annular projections.The sleeve outer wall of the unexpansive end of described expansion sleeve is provided with rib.The port of the unexpansive end of described expansion sleeve has turned welt.
Adopt the setscrew of technique scheme, when screw is screwed into expansion sleeve, dilating expansion end from the inside to surface, many annular projections having of inflating end can contacts with wall hole simultaneously like this, greatly the fastness of increase installation; Owing to adopt screw to be screwed into this mounting type, just there is not original pull bar exposed parts yet, so install elegant in appearancely, it is very little that expansion sleeve uses the back distortion simultaneously, is easy to take out in mounting hole; The rib that is provided with on the sleeve outer wall can prevent that expansion sleeve from rotating in mounting hole; The turned welt that expansion sleeve has can prevent that expansion sleeve from falling into mounting hole very dark or that connect.
[description of drawings]
The utility model has following accompanying drawing:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the right elevation of Fig. 1
[embodiment]
Accompanying drawing has been represented the technical solution of the utility model and embodiment, further describes each relevant details and working principle thereof of embodiment below more in conjunction with the accompanying drawings.
With reference to accompanying drawing 1,2, this kind setscrew, comprise screw 1 and expansion sleeve 3, the right part of described expansion sleeve 3 is divided into the inflating end with four vertical groovings 6, left part is divided into unexpansive end, the sleeve outer wall of described expansion sleeve 3 inflating ends is provided with three annular projections 5, the sleeve outer wall of described expansion sleeve 3 unexpansive ends is provided with four projection ribs 7 longitudinally, the port of described expansion sleeve 3 unexpansive ends has turned welt 2, described expansion sleeve 3 has the internal thread 4 that matches with described screw 1, and described screw 1 can adopt standard piece.
Claims (3)
1. a setscrew comprises screw (1) and expansion sleeve (3), it is characterized in that: the sleeve outer wall of described expansion sleeve (3) inflating end is provided with at least two annular projections (5).
2. a kind of setscrew as claimed in claim 1 is characterized in that: the sleeve outer wall of the unexpansive end of described expansion sleeve (3) is provided with rib (7).
3. a kind of setscrew as claimed in claim 1 is characterized in that: the port of the unexpansive end of described expansion sleeve (3) has turned welt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201705512U CN201318362Y (en) | 2008-12-20 | 2008-12-20 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201705512U CN201318362Y (en) | 2008-12-20 | 2008-12-20 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318362Y true CN201318362Y (en) | 2009-09-30 |
Family
ID=41197127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201705512U Expired - Fee Related CN201318362Y (en) | 2008-12-20 | 2008-12-20 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318362Y (en) |
-
2008
- 2008-12-20 CN CNU2008201705512U patent/CN201318362Y/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: 20090930 Termination date: 20111220 |