CN201407265Y - Screw-in expansion bolt - Google Patents
Screw-in expansion bolt Download PDFInfo
- Publication number
- CN201407265Y CN201407265Y CN2009201547528U CN200920154752U CN201407265Y CN 201407265 Y CN201407265 Y CN 201407265Y CN 2009201547528 U CN2009201547528 U CN 2009201547528U CN 200920154752 U CN200920154752 U CN 200920154752U CN 201407265 Y CN201407265 Y CN 201407265Y
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- expansion
- bolt
- nut
- sleeve
- 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
- 230000008961 swelling Effects 0.000 claims description 7
- 238000004049 embossing Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
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- Dowels (AREA)
Abstract
The utility model discloses a screw-in expansion bolt which comprises an expansion nut, a bolt and an expansion sleeve (1), wherein the expansion sleeve (1) is formed by integrally rolling a metal sheet, a notch is formed at the front end of the expansion sleeve, an emboss (2) is distributed transversely on the circumference of the expansion sleeve (1), and a bayonet (3) is arranged at the openedend of the wall of the expansion sleeve (1). The bayonet (3) can fasten the expansion nut, so that the expansion sleeve (1) is bonded with the expansion nut to the maximal extent, thereby bearing thesuspended heavy object to the maximal extent.
Description
Technical field
The utility model relates to a kind of fastening piece, relates to a kind of wresting-in type EXPANSION ANCHOR BOLTS specifically.
Background technique
The social at present EXPANSION ANCHOR BOLTS of using that goes up mostly is that the front end that inserts in the expansion sleeve is inverted round platform, promptly pre-large post-small, and be connected as a single entity with screw rod, usually stay the long screw rod of a joint when hammering into body of wall outside, both influenced attractive in appearance, the redundance that needs gas cutting tool or handsaw to be exposed again.Simultaneously, when the workmen finds to bore wrong position and when need taking out screw rod, for above-mentioned reasons, pulls outward to cut out body of wall and draw pine, destroyed wall body structure.Therefore this EXPANSION ANCHOR BOLTS had both been used inconvenience, wasted raw material again.In addition, because the swivel nut smooth surface, squeeze into and looseningly easily behind the body of wall cause bolt falling, so technician and user thirst for this is improved.
The model utility content
The purpose of this utility model provides a kind of existing shortcoming of original EXPANSION ANCHOR BOLTS of having improved, and novel structure is easy to use, contact firm wresting-in type EXPANSION ANCHOR BOLTS with body of wall.
The utility model is realized by following technological scheme.
The utility model is made up of swelling nut, bolt and expansion sleeve 1, and described expansion sleeve 1 is rolled into type by a tinsel one, has notch at its front end; Transverse distribution has embossing 2 around the described expansion sleeve 1.The cover skin of described expansion sleeve 1 is provided with bayonet socket 3 at opening end.
The utility model has the advantages that novel structure, rationally, easy to use, economical with materials can also be selected the bolt of different structure for use.
Description of drawings
Fig. 1 is the utility model expansion sleeve sectional structure schematic representation;
Fig. 2 is an expansion sleeve expansion shape schematic representation of the present utility model.
Embodiment
Do further detailed description below in conjunction with accompanying drawing 1 and 2 pairs of the utility model of accompanying drawing.
The utility model is made up of swelling nut, bolt and expansion sleeve 1, and described expansion sleeve 1 is rolled into type by a tinsel one, has notch at its front end; Transverse distribution has embossing 2 around the described expansion sleeve 1.The cover skin of described expansion sleeve 1 is provided with bayonet socket 3 at opening end.
In use the nut front end is inserted expansion sleeve 1, again the other end of bolt from expansion sleeve 1 inserted, be screwed into the screw in the swelling nut, because transverse distribution has embossing 2 around expansion sleeve 1, expansion sleeve 1 increases with the inner contact friction force of body of wall, can control the swelling of bolt to greatest extent and be difficult for looseningly, thereby can bear above heavier object is suspended on.In addition, the cover skin of expansion sleeve 1 is provided with bayonet socket 3 at opening end, and this bayonet socket 3 can fasten the swelling nut, thereby expansion sleeve 1 is combined with the swelling nut, also just can bear the weight of suspension to greatest extent.
Claims (2)
1, a kind of wresting-in type EXPANSION ANCHOR BOLTS is made up of swelling nut, bolt and expansion sleeve (1), it is characterized in that: described expansion sleeve (1) is rolled into type by a tinsel one, has notch at its front end; Described expansion sleeve (1) transverse distribution on every side has embossing (2).
2, wresting-in type EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: the cover skin of described expansion sleeve (1) is provided with bayonet socket (3) at opening end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201547528U CN201407265Y (en) | 2009-05-21 | 2009-05-21 | Screw-in expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201547528U CN201407265Y (en) | 2009-05-21 | 2009-05-21 | Screw-in expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407265Y true CN201407265Y (en) | 2010-02-17 |
Family
ID=41678199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201547528U Expired - Fee Related CN201407265Y (en) | 2009-05-21 | 2009-05-21 | Screw-in expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407265Y (en) |
-
2009
- 2009-05-21 CN CN2009201547528U patent/CN201407265Y/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: 20100217 Termination date: 20120521 |