CN2381829Y - Detachable expanding screw - Google Patents
Detachable expanding screw Download PDFInfo
- Publication number
- CN2381829Y CN2381829Y CN 99218914 CN99218914U CN2381829Y CN 2381829 Y CN2381829 Y CN 2381829Y CN 99218914 CN99218914 CN 99218914 CN 99218914 U CN99218914 U CN 99218914U CN 2381829 Y CN2381829 Y CN 2381829Y
- Authority
- CN
- China
- Prior art keywords
- screw
- detachable
- tightening nut
- expansion screw
- expansion
- 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 discloses a detachable expansion screw, which comprises an expansion body 3 and a gasket 2. The detachable expansion screw is characterized in that the detachable expansion screw also comprises a tightening nut 4 which is matched with an expansion clack 5 on the tail part of the expansion body and has a conical shape, and a screw 1 which is connected with screw threads of the tightening nut 4. When the detachable expansion screw is used, only a screw cap is exposed. People and objects are not cut easily. The detachable expansion screw is safe and beautiful. When the detachable expansion screw is detached, the expansion screw can be detached with the objects together without damaging installation surfaces, such as walls, ceilings, etc. The detachable expansion screw has the advantages of simple structure and convenient manufacture. The detachable expansion screw is mainly used for installing the objects, such as pendant lamps, closets, etc.
Description
The utility model relates to a kind of fastening coupling, specifically a kind of swell fixture.
The EXPANSION ANCHOR BOLTS of using is made up of turnbuckle, nut, packing ring, expander etc. at present.The rear portion of this turnbuckle has a conical head that matches with the expanding petal of expander afterbody.There are two drawbacks in this EXPANSION ANCHOR BOLTS: the one, and after installing, the front portion of its turnbuckle always has one section to extend, and safety is cut to pieces and people and thing easily so inadequately, nor attractive in appearance; The 2nd, in case dress is wrong, want EXPANSION ANCHOR BOLTS is removed, tend to make a mess of attachment faces such as wall, ceiling board.
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of swell fixture removable, that safety is attractive in appearance is provided.
The purpose of this utility model is achieved by the following technical solution: a kind of removable swell fixture, comprise expander, packing ring, it is characterized in that it also comprises and the expanding petal of expander afterbody tightening nut that match, that profile is tapered, and the screw that is connected with described tightening nut screw thread.
After adopting structure of the present utility model, screw screw when object is installed, make the tightening nut reach of taper, the tapering part of tightening nut enters expanding petal, force that expanding petal is radially outer to expand and choke hole wall, install like this and only expose screw cap, not only safety but also attractive in appearance.In case will remove this swell fixture, can withdraw from a part of screw rod earlier, then screw is struck inward, so that the tapering part of tightening nut withdraws from expanding petal, allow expanding petal restore to the original state, take out swell fixture again, can not make a mess of attachment faces such as wall, ceiling board like this.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a tightening nut structural representation of the present utility model.
As seen from Figure 1, Figure 2: the removable swell fixture of the utility model is made of screw 1, packing ring 2, expander 3 and tightening nut 4.The profile of tightening nut 4 is tapered, and matches with the expanding petal 5 of expander 3 afterbodys, and screw 1 is connected with the screw thread of this tightening nut 4.Packing ring 2 is connected as a single entity with the head of expander 3, is beneficial to the dismounting of swell fixture.When coupled of pendent lamp, closet etc. are installed, earlier bore a hole at attachment faces such as wall, ceiling boards, tightening nut is put into expanding petal by the arrow A direction, coupled is through on the screw, again screw is put into expander by the arrow B direction and be connected with the screw thread of tightening nut.Like this this swell fixture is packed in the hole, screw screw then, make tightening nut reach, the tapering part of tightening nut enters expanding petal, forces that expanding petal is radially outer to expand and choke hole wall, makes coupled to be fixed and clamped at last.Install and only expose screw cap, this screw cap thickness is little, is difficult for cutting to pieces and people and thing, and is not only safe but also attractive in appearance.In case will remove this swell fixture, can withdraw from a part of screw rod earlier, then screw is struck inward, so that the tapering part of tightening nut withdraws from expanding petal, allow expanding petal restore to the original state, clamp the disjunctor packing ring of expander head again with pliers, take out swell fixture and coupled, can not make a mess of attachment faces such as wall, ceiling board like this.And the swell fixture that takes out can also use again, can not cause waste.Screw 1, packing ring 2, expander 3 are the common standard part, the expander head connects a disjunctor packing ring, make more convenient, the tapered tightening nut of profile is also easily produced in enormous quantities, overall cost and existing EXPANSION ANCHOR BOLTS are very nearly the same, and using effect obviously is better than existing EXPANSION ANCHOR BOLTS, can promote the use of.
Claims (2)
1, a kind of removable swell fixture, comprise expander (3), packing ring (2), it is characterized in that: it also comprises expanding petal (5) tightening nut that match, that profile is tapered (4) with the expander afterbody, and the screw (1) that is connected with described tightening nut (4) screw thread.
2, removable swell fixture according to claim 1 is characterized in that: the head of expander (3) and packing ring (2) are connected as a single entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218914 CN2381829Y (en) | 1999-08-05 | 1999-08-05 | Detachable expanding screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218914 CN2381829Y (en) | 1999-08-05 | 1999-08-05 | Detachable expanding screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381829Y true CN2381829Y (en) | 2000-06-07 |
Family
ID=34009973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99218914 Expired - Fee Related CN2381829Y (en) | 1999-08-05 | 1999-08-05 | Detachable expanding screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381829Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143492A1 (en) * | 2012-03-31 | 2013-10-03 | 东莞莹辉灯饰有限公司 | Simple mounting device for ceiling lamp |
| CN106763049A (en) * | 2016-12-31 | 2017-05-31 | 中国工程物理研究院激光聚变研究中心 | Push away swollen drawing type flexible fastening connector |
| CN114777168A (en) * | 2021-12-10 | 2022-07-22 | 深圳国爱全电化智慧科技有限公司 | Electric fire stove burner and electric fire stove |
-
1999
- 1999-08-05 CN CN 99218914 patent/CN2381829Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143492A1 (en) * | 2012-03-31 | 2013-10-03 | 东莞莹辉灯饰有限公司 | Simple mounting device for ceiling lamp |
| CN106763049A (en) * | 2016-12-31 | 2017-05-31 | 中国工程物理研究院激光聚变研究中心 | Push away swollen drawing type flexible fastening connector |
| CN114777168A (en) * | 2021-12-10 | 2022-07-22 | 深圳国爱全电化智慧科技有限公司 | Electric fire stove burner and electric fire stove |
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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 |