CN201461648U - Expansion bolt of bipyramid nut - Google Patents
Expansion bolt of bipyramid nut Download PDFInfo
- Publication number
- CN201461648U CN201461648U CN2009201036715U CN200920103671U CN201461648U CN 201461648 U CN201461648 U CN 201461648U CN 2009201036715 U CN2009201036715 U CN 2009201036715U CN 200920103671 U CN200920103671 U CN 200920103671U CN 201461648 U CN201461648 U CN 201461648U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- bipyramid
- biconical
- expansion bolt
- 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
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to an expansion bolt of a bipyramid nut which is applicable to substituting the existing expansion bolt and has the purposes of convenient operation and wide application range. The expansion bolt comprises a bolt bar, a washer, an expand tube and a bipyramid nut. The bipyramid nut is a tightening element with a cylinder in the middle segment and a cone at two ends; an axial straight knurling is arranged on the outer surface of the cylinder in the middle segment; an external thread matched with the internal thread of the bipyramid nut is arranged at the front part of the bolt bar; a hexagonal bolt head is arranged at the rear end of the bolt bar; and a cross recess is arranged in the middle of the end surface of the bolt head.
Description
Technical field
The utility model relates to a kind of improvement of EXPANSION ANCHOR BOLTS.
Background technique
The conventional expanded bolt need have been marked the mounting point earlier when specific operation, with percussion drill punching, then EXPANSION ANCHOR BOLTS is followed closely in the hole with hammer, and the nut that screws up with a wrench makes the bolt cone that expand tube is strutted, and is able to eat strength; Must be again nut and pad be back-outed and take off, workpiece is hung up; Successively pad and nut are put on again, fastening with spanner; Front and back have needed a few minutes.Use inconvenience, and scrappage height, using scope are little.Also very difficult when needing to remove, can stay after the dismounting than macroscopic void, need to repair specially.
Summary of the invention
The utility model purpose is for overcoming the deficiency of above-mentioned prior art, and a kind of easy and simple to handle, biconical nut expansion bolt that using scope is wide is provided.
The utility model comprises bolt shank, pad, expand tube and biconical nut, and biconical nut is the stretching element, and the stage casing is a cylindrical body, and two is a cone, does not have positive and negative during assembling.The front cone is convenient to insert in the body of wall, and the cone of back has contacted the stretching effect with expand tube; Stage casing cylindrical body outer surface is provided with axial straight knurling, can prevent that nut from rotating; The bolt shank front portion is provided with the outside thread that matches with the biconical nut internal thread, and the bolt shank rear end is six square bolt heads, is provided with cross recess in the middle of the bolt head end face.
The utility model is applicable to that substituting traditional expansion bolt uses.When screwing, the bolt shank relative position is constant, and nut moves from inside to outside, and the nut conical surface struts expand tube to reach fastening workpiece purpose; This biconical nut outside is pressed with axial straight burr, can effectively solve the nut problem of skidding in the hole; Be pressed with cross recess on the six square bolt end surfaces, can use multiple tool operation, as open-end wrench, plum blossom shaped spanner, socket wrench, a word screwdriver, cross screwdriver etc.Widened Environmental Conditions, the place that can't use at conventional expanded bolts such as deep hole, groove, dead angles can be convenient to use.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, biconical nut cone inclined-plane, 2, biconical nut stage casing straight knurling, 3, expand tube, 4, the expand tube opening, 5, pad, 6, bolt shank, 7, biconical nut cone processing groove, 8, cross recess, 9, six square bolt heads.
Embodiment
Biconical nut adopts hot rolling technology processing, can see biconical nut cone processing groove 7 on biconical nut cone inclined-plane 1.Bolt shank 6 ends are six square bolt heads 9, are provided with cross recess 8 in the middle of six square bolt heads, 9 end faces, are convenient to screwdriver and other multiple tool operation.
Claims (1)
1. a biconical nut expansion bolt comprises bolt shank, pad and expand tube, it is characterized in that also comprising biconical nut, and biconical nut is the stretching element, and the stage casing is a cylindrical body, and two is a cone; Stage casing cylindrical body outer surface is provided with axial straight knurling; The bolt shank front portion is provided with the outside thread that matches with the biconical nut internal thread, and the bolt shank rear end is six square bolt heads, is provided with cross recess in the middle of the bolt head end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201036715U CN201461648U (en) | 2009-07-08 | 2009-07-08 | Expansion bolt of bipyramid nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201036715U CN201461648U (en) | 2009-07-08 | 2009-07-08 | Expansion bolt of bipyramid nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461648U true CN201461648U (en) | 2010-05-12 |
Family
ID=42389001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201036715U Expired - Fee Related CN201461648U (en) | 2009-07-08 | 2009-07-08 | Expansion bolt of bipyramid nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104957198A (en) * | 2014-04-21 | 2015-10-07 | 常州山由帝奥绝缘材料制造有限公司 | Liner for preventing raw edges at end portion |
| CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
-
2009
- 2009-07-08 CN CN2009201036715U patent/CN201461648U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104957198A (en) * | 2014-04-21 | 2015-10-07 | 常州山由帝奥绝缘材料制造有限公司 | Liner for preventing raw edges at end portion |
| CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
| CN106246675B (en) * | 2015-06-10 | 2023-10-27 | 上海振纯新型建材有限公司 | Expansion bolt with stability |
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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: 20100512 Termination date: 20110708 |