CN202991762U - Demountable and reusable expansion screw - Google Patents
Demountable and reusable expansion screw Download PDFInfo
- Publication number
- CN202991762U CN202991762U CN 201220754134 CN201220754134U CN202991762U CN 202991762 U CN202991762 U CN 202991762U CN 201220754134 CN201220754134 CN 201220754134 CN 201220754134 U CN201220754134 U CN 201220754134U CN 202991762 U CN202991762 U CN 202991762U
- Authority
- CN
- China
- Prior art keywords
- expansion
- nut
- setscrew
- expansion sleeve
- utility
- 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 demountable and reusable expansion screw and relates to the field of expansion screws. The expansion screw provided by the utility model solves the problems that expansion screws utilized by people at present enter holes difficultly, are frequently damaged after being taken out and cannot be reused. The demountable and reusable expansion screw provided by the utility model comprises an expansion sleeve, a screw rod with a cone head, a nut and a gasket, wherein one end of the expansion sleeve is provided with expansion grooves, expansion pieces are arranged among the expansion grooves, and the outer sides of the expansion pieces among the expansion grooves in the expansion sleeve are provided with outer threads; and one end (opposite to the expansion grooves) of the expansion sleeve is provided with a nut, and the nut is welded and fixed on the expansion sleeve and is provided with an inner thread corresponding to the outer thread in the screw rod. The demountable and reusable expansion screw provided by the utility model has the advantages of simple structure, convenience in installation and low cost.
Description
Technical field
The utility model relates to a kind of setscrew, particularly relates to a kind of detachable and setscrew that can reuse.
Background technique
At present, architectural generally with setscrew, that object is fastening, general setscrew is by expansion sleeve, form with the screw rod of conehead and nut etc., wherein an end of expansion sleeve has three or more expansion slot, one end of screw rod has conehead, at first hole on wall during installation, with screw rod, expansion sleeve put into the hole then fastening nut pull screw rod, thereby the conehead extrusion expansion sleeve pipe of screw rod makes the swelling of holing on expansion sleeve inflating end and wall, and the object that is mounted is fixed on wall.Existing setscrew enter boring internal cause run into certain resistance and be difficult for inlet hole, need to just can make setscrew enter into the degree of depth in desired boring with assistant tool such as hammer at the end with respect to conehead of screw rod; After fixing in the boring of setscrew on wall if there is need not and need to extract, the resistance that runs into is large and waste time and energy; The setscrew that namely enables to extract also can cause greatly the setscrew distortion to use because of stressed, and this is also a kind of waste to resource on certain degree.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, and a kind of detachable and setscrew that can reuse simple in structure, easy for installation and with low cost is provided.
For achieving the above object, the utility model provides a kind of detachable and setscrew that can reuse, described setscrew comprises expansion sleeve, the screw rod with conehead, nut and pad, one end of expansion sleeve has expansion slot, be intumescent sheet between expansion slot and expansion slot, the expansion slot on described expansion sleeve and the intumescent sheet arranged outside between expansion slot have outside thread; An end with respect to expansion slot on expansion sleeve is provided with nut, described nut be welded and fixed and be provided with expansion sleeve with screw rod on the corresponding internal thread of outside thread.
Described nut is hexagon nut.
The utility model beneficial effect is: of the present utility model detachable and setscrew device that can reuse is simple in structure, easy for installation, with low cost; Because the screw thread that arranges on expansion sleeve is conducive to enter or withdraw from the boring of setscrew on wall, reduce resistance and time saving and energy saving; When setscrew is removed because being subjected to external force less without damaging phenomenon, so the setscrew that is removed still can continue to use; In addition, the setscrew in the boring on body of wall makes the boring on body of wall do not damaged because of firmly less when being removed.
Below in conjunction with accompanying drawing, detachable and setscrew that can reuse of the present utility model is described further.
Description of drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is expansion sleeve structural representation of the present utility model.
In figure: 1, expansion sleeve, 2, conehead, 3, screw rod, 4, nut, 5, pad, 6, expansion slot, 7, intumescent sheet, 8, the intumescent sheet outside thread, 9, nut, 10, the outside thread on screw rod, 11, internal thread.
Embodiment
As shown in Figure 1 and Figure 2, the detachable and setscrew that can reuse of the present embodiment comprises expansion sleeve 1, the screw rod 3 with conehead 2, nut 4 and pad 5, and an end of expansion sleeve 1 has expansion slot 6, is intumescent sheet 7 between expansion slot and expansion slot 6.Intumescent sheet 7 arranged outside between expansion slot on expansion sleeve 1 and expansion slot 6 have intumescent sheet outside thread 8; An end with respect to expansion slot 6 on expansion sleeve 1 is provided with nut 9, described nut 9 and expansion sleeve 1 be welded and fixed and be provided with screw rod on the corresponding internal thread 11 of outside thread 10, nut 9 is hexagon nut.
8 energy of outside thread of intumescent sheet 7 setscrew inserted in boring in wall with spanner rotary nut 9, because can further be advanced to setscrew in boring on certain degree very like a cork; Need not need to take out available spanner counter-rotating nut 9 if put into the setscrew of drill hole on wall, because of 8 energy of outside thread of intumescent sheet 7 with intumescent sheet on setscrew 7 to boring is outer withdraw from a part after, can take out easily setscrew thereby namely make setscrew become flexible to some extent with boring.
Claims (2)
1. detachable and can reuse setscrew, described setscrew comprises expansion sleeve, the screw rod with conehead, nut and pad, one end of expansion sleeve has expansion slot, it is intumescent sheet between expansion slot and expansion slot, it is characterized in that, the expansion slot on described expansion sleeve and the intumescent sheet arranged outside between expansion slot have outside thread; An end with respect to expansion slot on expansion sleeve is provided with nut, described nut be welded and fixed and be provided with expansion sleeve with screw rod on the corresponding internal thread of outside thread.
2. the detachable and setscrew that can reuse according to claim 1, is characterized in that, described nut is hexagon nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754134 CN202991762U (en) | 2012-12-28 | 2012-12-28 | Demountable and reusable expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754134 CN202991762U (en) | 2012-12-28 | 2012-12-28 | Demountable and reusable expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991762U true CN202991762U (en) | 2013-06-12 |
Family
ID=48562946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220754134 Expired - Fee Related CN202991762U (en) | 2012-12-28 | 2012-12-28 | Demountable and reusable expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN106969014A (en) * | 2017-04-10 | 2017-07-21 | 贵州省剑河民族中学 | A kind of setscrew of reusable edible |
-
2012
- 2012-12-28 CN CN 201220754134 patent/CN202991762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN106969014A (en) * | 2017-04-10 | 2017-07-21 | 贵州省剑河民族中学 | A kind of setscrew of reusable edible |
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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: 20130612 Termination date: 20131228 |