CN201250832Y - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN201250832Y CN201250832Y CNU2008201353941U CN200820135394U CN201250832Y CN 201250832 Y CN201250832 Y CN 201250832Y CN U2008201353941 U CNU2008201353941 U CN U2008201353941U CN 200820135394 U CN200820135394 U CN 200820135394U CN 201250832 Y CN201250832 Y CN 201250832Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- expansion sleeve
- double
- screw bolt
- cone head
- 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
Links
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses an expansion bolt, including double-screw bolt, inflation cover, gasket, spring coil and nut, double-screw bolt one end is formed with the taper head, and the other end then is the screw thread, inflation cover, gasket, spring coil, nut overlap in proper order and locate the double-screw bolt on, the inflation cover is equipped with at least twice inflation groove corresponding to screw thread taper head one side, and the conical surface of taper head comprises at least three oblique conical surface, is formed with the awl arris between the oblique conical surface, and the bottom surface of taper head forms into corresponding polygonous shape. The expansion bolt provided by the utility model has the advantages that at least three oblique conical surfaces are formed at the conical head part of the stud, the conical edges are formed among the oblique conical surfaces, when the expansion sleeve is sleeved, the conical edges are embedded into the expansion groove, and the stud can not rotationally slip; meanwhile, the outer surface of the expansion sleeve is provided with stripes or corrugations, so that the expansion sleeve is prevented from rotating and slipping, and the expansion sleeve also plays a role in expansion.
Description
Technical field
The utility model belongs to hardware fitting, is specifically related to a kind of EXPANSION ANCHOR BOLTS.
Background technique
EXPANSION ANCHOR BOLTS is a kind of metal fixing, and its medium-and-large-sized EXPANSION ANCHOR BOLTS is anchored in metal shell or the fender so that heavy object is fixed in the cement.Such body of wall EXPANSION ANCHOR BOLTS for high-altitude or roof operation, hawser fix, the installation of line transportation or radiator bracket is desirable especially, and the separation and the structure that are generally used for the office space are fixed.Traditional expansion bolt has a bigger defective to be, the relative rotation with double-screw bolt of expansion sleeve is skidded during bolton, skids owing to the expansion sleeve smooth surface tightens also can rotate in the body of wall simultaneously.
The model utility content
The utility model provides a kind of EXPANSION ANCHOR BOLTS, and it adopts simple structure to improve the anti-slip performance of EXPANSION ANCHOR BOLTS.
The technological scheme that the utility model adopted is: a kind of EXPANSION ANCHOR BOLTS, comprise double-screw bolt, expansion sleeve, pad and nut, double-screw bolt one end is formed with cone head, the other end then is a screw thread, described expansion sleeve, pad, nut are sheathed on the double-screw bolt successively, and expansion sleeve is provided with twice expansion slot at least corresponding to screw thread cone head one side, and the conical surface of cone head is made up of at least three tilted conical surfaces, be formed with the awl rib between the tilted conical surface, the bottom surface of cone head forms corresponding polygonal shape.
More excellent is that expansion sleeve is provided with striped or ripple corresponding to the outer surface of screw thread cone head one side.
And expansion sleeve is provided with the swollen hole of rising, and described inflation port is positioned on the expansion slot.
The EXPANSION ANCHOR BOLTS that the utility model provides, its beneficial effect is, cone head at double-screw bolt is formed with at least three tilted conical surfaces, form the awl rib between tilted conical surface, fashionable when the expansion sleeve cover, the awl rib embeds in the expansion slot, and double-screw bolt just can not rotate and skid, when nut screws in when tightening, cone head rises and reaches fastening effect greatly thereby expansion sleeve will be forced into; Simultaneously because the outer surface of expansion sleeve is provided with striped or ripple, prevent that the expansion sleeve rotation from skidding, also play the effect of expansion in addition.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structure explosive view.
Among the figure:
1, double-screw bolt 2, expansion sleeve 3, pad 4, nut 5, cone head 6, expansion slot 7, tilted conical surface 8, awl rib 9, striped (ripple) 10, inflation port 11, spring ring
Embodiment
Below in conjunction with accompanying drawing the utility model is further described in detail.
As shown in Figure 1 and Figure 2, the technological scheme that the utility model adopted is: a kind of EXPANSION ANCHOR BOLTS, comprise double-screw bolt 1, expansion sleeve 2, pad 3, spring ring 11 and nut 4, double-screw bolt one end is formed with cone head 5, the other end then is a screw thread, described expansion sleeve 2, pad 3, spring ring 11, nut 4 are sheathed on the double-screw bolt 1 successively, expansion sleeve 2 is provided with twice expansion slot 6 at least corresponding to screw thread cone head 5 one sides, the conical surface of cone head 5 is made up of six tilted conical surfaces 7, be formed with awl rib 8 between the tilted conical surface, the bottom surface of cone head 5 forms corresponding hexagonal shape.
Be provided with striped 9 at expansion sleeve 2 corresponding to the outer surface of screw thread cone head 5 one sides, expansion sleeve 2 is provided with the swollen hole 10 of rising, and inflation port 10 is positioned on the expansion slot 6.
The EXPANSION ANCHOR BOLTS that the utility model provides, its beneficial effect is, cone head at double-screw bolt is formed with at least three tilted conical surfaces, form the awl rib between tilted conical surface, fashionable when the expansion sleeve cover, the awl rib embeds in the expansion slot, and double-screw bolt just can not rotate and skid, when nut screws in when tightening, cone head rises and reaches fastening effect greatly thereby expansion sleeve will be forced into; Simultaneously because the outer surface of expansion sleeve is provided with striped or ripple, prevent that the expansion sleeve rotation from skidding, also play the effect of expansion in addition.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. EXPANSION ANCHOR BOLTS, comprise double-screw bolt, expansion sleeve, pad, spring ring and nut, double-screw bolt one end is formed with cone head, the other end then is a screw thread, and described expansion sleeve, pad, spring ring, nut are sheathed on the double-screw bolt successively, and expansion sleeve is provided with twice expansion slot at least corresponding to screw thread cone head one side, it is characterized in that, the conical surface of described cone head is made up of at least three tilted conical surfaces, is formed with the awl rib between the tilted conical surface, and the bottom surface of cone head forms corresponding polygonal shape.
2. EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that described expansion sleeve is provided with striped or ripple corresponding to the outer surface of screw thread cone head one side.
3. EXPANSION ANCHOR BOLTS as claimed in claim 1 or 2 is characterized in that described expansion sleeve is provided with the swollen hole of rising, and described inflation port is positioned on the expansion slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201353941U CN201250832Y (en) | 2008-08-25 | 2008-08-25 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201353941U CN201250832Y (en) | 2008-08-25 | 2008-08-25 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250832Y true CN201250832Y (en) | 2009-06-03 |
Family
ID=40746505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201353941U Expired - Fee Related CN201250832Y (en) | 2008-08-25 | 2008-08-25 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250832Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179397A (en) * | 2015-10-09 | 2015-12-23 | 周兆弟 | Clamping table type connecting piece |
-
2008
- 2008-08-25 CN CNU2008201353941U patent/CN201250832Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179397A (en) * | 2015-10-09 | 2015-12-23 | 周兆弟 | Clamping table type connecting piece |
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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 | ||
| CP02 | Change in the address of a patent holder |
Address after: First floor, No. two, 50 Avenue, Lanshi Road, Chancheng District, Guangdong, Foshan Province, China: 528000 Patentee after: Xu Libiao Address before: No. 2, Lane 515500, Chengde village, East Village, East Village, Jiedong, Guangdong, China Patentee before: Xu Libiao |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20100825 |