CN2259520Y - Safety expansive bolt - Google Patents
Safety expansive bolt Download PDFInfo
- Publication number
- CN2259520Y CN2259520Y CN 96211420 CN96211420U CN2259520Y CN 2259520 Y CN2259520 Y CN 2259520Y CN 96211420 CN96211420 CN 96211420 CN 96211420 U CN96211420 U CN 96211420U CN 2259520 Y CN2259520 Y CN 2259520Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- opening
- head
- anchor bolts
- sleeve pipe
- 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 safety expansive bolt with a large expansion factor, which comprises a screw rod, a casing tube and a nut, wherein, the trumpet-shaped tail part of the screw rod has an opening and a wedge block matched with the shape of the opening, and the opening forms an inclined tooth shape with an inclined tooth angle; the wedge block matched with the shape of the opening also forms an inclined tooth shape with an inclined tooth angle, and the top of the thread head of the screw rod has a hammer drive head; a casing tube inclined tooth is arranged on the casing tube, and the head of the screw rod is sheathed with a plain cushion and a spring cushion. The utility model has the advantages of simple structure, convenient operation and large expansion factor, when in use, the safety expansive bolt can be firmly fixed with objects or wall bodies into a whole, and accordingly, the utility model has the advantage of high safety.
Description
The utility model relates to clamp structure device field, is a kind of safe EXPANSION ANCHOR BOLTS.Traditional expansion bolt comprises screw rod 1, sleeve pipe 2, nut 5, as shown in Figure 1, wherein, the afterbody of screw rod 1 is a screw thread tubaeform, that head has to match with nut 5, and an end of sleeve pipe 2 close screw rod 1 afterbodys has the mouth that sleeve pipe 2 is expanded, and general all be with plain cushion 3 and spring pad 4, to increase fastening effect at the head of screw rod 1.But, little because of the expansion coefficient of traditional expansion bolt, the labor solidity is poor, is easily transferred to, and causes beyond thought accident easily.
The purpose of this utility model is to overcome the deficiency of prior art and designs the big safe EXPANSION ANCHOR BOLTS of a kind of expansion coefficient.
The purpose of this utility model realizes by following measure: this safe EXPANSION ANCHOR BOLTS comprises screw rod, sleeve pipe, nut, and the tubaeform afterbody of screw rod has opening, and the voussoir that matches with opening shape is arranged; The oblique tooth that is shaped as oblique type tooth angle of opening, and the voussoir shape that matches with opening shape also is the oblique tooth at oblique type tooth angle; The screw flight apical head has the hammering head; The oblique tooth of sleeve pipe is arranged on the sleeve pipe; The head of screw rod is with plain cushion; The head of screw rod is with spring pad.
Accompanying drawing 1 is the structural representation of existing EXPANSION ANCHOR BOLTS; Accompanying drawing 2 is the structural representation of the utility model most preferred embodiment, and accompanying drawing 3 is the plan structure schematic representation of voussoir in the accompanying drawing 2, and the coding in the accompanying drawing is respectively: 1 is screw rod, 2 is sleeve pipe, 3 is plain cushion, and 4 is spring pad, and 5 is nut, 6 is oblique tooth, 7 is opening, and 8 is voussoir, and 9 is oblique tooth, 10 is the oblique tooth of sleeve pipe, and 11 for beating head.
Below in conjunction with most preferred embodiment the utility model is described in further detail: as shown in Figure 2, this safe EXPANSION ANCHOR BOLTS comprises screw rod 1, sleeve pipe 2, nut 5, and the tubaeform afterbody of screw rod 1 has opening 7, and the voussoir 8 that matches with opening 7 shapes is arranged; In order to make voussoir 8 wedge in the opening 7 of screw rod 1 afterbody more effectively and be difficult for dropping out, the shape of opening 7 is preferably the oblique tooth 6 at oblique type tooth angle, and voussoir 8 shapes that match with opening 7 shapes also are preferably the oblique tooth 9 at oblique type tooth angle, as shown in Figure 3; Have on the screw head top of screw rod 1 and to beat 11, when beating the head of screw rod 1, just can not damage screw thread like this, beat an external diameter of 11 preferably less than the external diameter of screw thread; In order to make sleeve pipe 2 after expansion, be difficult for dropping out, the oblique tooth of sleeve pipe is arranged on sleeve pipe 2; As traditional expansion bolt, in order to increase fastening effect, the head of screw rod 1 is with plain cushion 3 and spring pad 4, is convenient to expand in order to make sleeve pipe 2, and sleeve pipe 2 has the mouth that sleeve pipe 2 is expanded near an end of screw rod 1 afterbody.
During use: the hole of on firm object or body of wall, boring screw rod 1 external diameter that is a bit larger tham this safe EXPANSION ANCHOR BOLTS earlier, hole depth can be decided according to the length of screw rod 1, but be difficult for boring saturating, then voussoir 8 is inserted in the opening 7 of screw rods 1 afterbody and make oblique tooth 6 and 9 engagements, again with sleeve pipe 2, plain cushion 3 and spring pad 4 are inserted in the screw rod 1, secondly will have in screw rod 1 patchhole of voussoir 8 and its voussoir 8 is close at the bottom of the hole, beat to beat 11 then, make voussoir 8 mesh in the opening 7 that advances screw rod 1 dearly, thereby the horn mouth afterbody that makes screw rod 1 expands in object or body of wall hole, and be not drawn out easily, last tightening nut 5 makes sleeve pipe 2 be close to hole wall after expanding under the effect of screw rod 1 horn mouth afterbody, thereby this safe EXPANSION ANCHOR BOLTS is fixed as one with object or body of wall securely.
The utility model is simple in structure, easy to use, expansion coefficient is big, this safe EXPANSION ANCHOR BOLTS can be fixed as one with object or body of wall securely during use, thus safe and reliable.
Claims (6)
1. a safe EXPANSION ANCHOR BOLTS comprises screw rod, sleeve pipe, nut, it is characterized in that the tubaeform afterbody of screw rod has opening, and the voussoir that matches with opening shape is arranged.
2. safe EXPANSION ANCHOR BOLTS according to claim 1 it is characterized in that the oblique tooth at the oblique type tooth of being shaped as of opening angle, and the voussoir shape that matches with opening shape also is the oblique tooth at oblique type tooth angle.
3. safe EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that the screw flight apical head has the hammering head.
4. safe EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that having on the sleeve pipe the oblique tooth of sleeve pipe.
5. safe EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that the head of screw rod is with plain cushion.
6. safe EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that the head of screw rod is with spring pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96211420 CN2259520Y (en) | 1996-05-23 | 1996-05-23 | Safety expansive bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96211420 CN2259520Y (en) | 1996-05-23 | 1996-05-23 | Safety expansive bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259520Y true CN2259520Y (en) | 1997-08-13 |
Family
ID=33894355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96211420 Expired - Fee Related CN2259520Y (en) | 1996-05-23 | 1996-05-23 | Safety expansive bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259520Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160964A (en) * | 2020-11-10 | 2021-01-01 | 扬州工业职业技术学院 | Constant-force self-tightening anti-loose bolt |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
-
1996
- 1996-05-23 CN CN 96211420 patent/CN2259520Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160964A (en) * | 2020-11-10 | 2021-01-01 | 扬州工业职业技术学院 | Constant-force self-tightening anti-loose bolt |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |