CN204025270U - A kind of dismountable setscrew - Google Patents
A kind of dismountable setscrew Download PDFInfo
- Publication number
- CN204025270U CN204025270U CN201420505206.5U CN201420505206U CN204025270U CN 204025270 U CN204025270 U CN 204025270U CN 201420505206 U CN201420505206 U CN 201420505206U CN 204025270 U CN204025270 U CN 204025270U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pawl
- setscrew
- intumescent sheet
- bolt
- Prior art date
Links
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 230000000916 dilatatory Effects 0.000 claims abstract description 4
- 230000037250 Clearance Effects 0.000 claims abstract description 3
- 230000035512 clearance Effects 0.000 claims abstract description 3
- 239000011257 shell materials Substances 0.000 claims abstract description 3
- 238000010586 diagrams Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 methods Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Abstract
Description
Technical field
The utility model discloses a kind of screw.Be specifically related to a kind of dismountable setscrew.
Background technique
In existing engineering construction, setscrew is widely used, and is normally made up of sleeve pipe, bolt, pad and nut, is provided with and dilates head in the bottom of bolt, by the rotation of nut, the intumescent sheet of sleeve bottom is expanded to drive with ground or body of wall interlock and fixes.But because intumescent sheet expands rear ground or the body of wall of embedding, after being used to complete, setscrew cannot be removed, nut can only be laid down and bolt is squeezed into ground or body of wall, therefore we need a kind of detachable expansion screw simple in structure.
Model utility content
The utility model provides a kind of detachable expansion screw simple in structure.
In order to achieve the above object, the utility model is by the following technical solutions: it comprises bolt, sleeve pipe, compression spring and nut, and the upper end of bolt is provided with screw thread, the other end be provided with cone angle upwards dilate head, also comprise the sleeve being arranged on outside sleeve pipe, sleeve coordinates with shell clearance; Sleeve pipe splits into the intumescent sheet with pawl with dilating the one end that is connected of head, and it is corresponding one by one with intumescent sheet that described pawl is arranged on the bottom of intumescent sheet; On sleeve, offer and pawl groove one to one, the bottom of sleeve is blind hole, and the bottom of fluting is greater than the longest edge length of pawl apart from the distance of sleeve bottom, and the height of pawl is greater than the gap of sleeve and sleeve pipe.
As a kind of preferred version of said system, setscrew pawl is right-angled triangle, and one of them right angle side is arranged on away from the one end axially vertical with intumescent sheet that dilates head.Intumescent sheet is multiple.Pawl be isosceles right triangle or pawl be wherein one jiao be the right-angled triangle of 30 degree.
The beneficial effects of the utility model are, due to the sleeve being provided with outside sleeve pipe, in the time that needs are removed setscrew, only bolt need to be squeezed in sleeve and setscrew can be removed.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model detachable expansion screw.
Fig. 2 is traditional setscrew schematic diagram.
Embodiment
For making the purpose of the present utility model, technological scheme and its effect more cheer and bright, below in conjunction with accompanying drawing, the utility model embodiment is described:
Fig. 1 is the schematic diagram of the utility model detachable expansion screw.It comprises: bolt 1, sleeve pipe 2, compression spring 3 and nut 4, the upper end of bolt 1 is provided with screw thread, the other end be provided with cone angle upwards dilate 11, also comprise the sleeve 5 being arranged on outside sleeve pipe, sleeve 5 and sleeve pipe 2 Spielpassung; Sleeve pipe 2 splits into the intumescent sheet with pawl 21 with dilating 11 one end that are connected, and it is corresponding one by one with intumescent sheet that described pawl 21 is arranged on the bottom of intumescent sheet; On sleeve 5, offer and pawl 21 groove one to one, the bottom of sleeve 5 is blind hole, and the bottom of fluting is greater than the longest edge length of pawl 21 apart from the distance of sleeve bottom, and the height of pawl 21 is greater than the gap of sleeve 5 and sleeve pipe 2.
When use, first sleeve 5 is inserted in the hole of accomplishing fluently, the bolt assembling, sleeve pipe, compression spring and nut are inserted to sleeve, should be by pawl 21 when insertion the fluting along sleeve, rotating nut opens intumescent sheet gradually, pawl embeds ground or body of wall, by the snap-in force of pawl, setscrew is fixed.In the time that needs are removed, first nut and pad are unloaded, then bolt is beaten as sleeve, in this process, under the guiding of fluting bottom, intumescent sheet to be squeezed to sleeve bottom be dismountable sleeve and bolt to the hypotenuse of pawl.
The mode of execution that above embodiment discloses for the utility model, the mode of execution that its content just adopts for the ease of understanding the technical solution of the utility model, not for limiting the utility model.Technician under any the utility model in technical field; do not departing under the prerequisite of the core technology scheme that the utility model discloses; can in the form of implementing and details, make any amendment and variation; but the protection domain that the utility model limits, throws away the scope that must limit with appending claims and is as the criterion.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505206.5U CN204025270U (en) | 2014-09-02 | 2014-09-02 | A kind of dismountable setscrew |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505206.5U CN204025270U (en) | 2014-09-02 | 2014-09-02 | A kind of dismountable setscrew |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025270U true CN204025270U (en) | 2014-12-17 |
Family
ID=52065141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420505206.5U CN204025270U (en) | 2014-09-02 | 2014-09-02 | A kind of dismountable setscrew |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963930A (en) * | 2015-07-08 | 2015-10-07 | 常州市零伍壹玖电子有限公司 | Stainless steel expansion screw for sports device |
| CN106245804A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | The heat insulation integrated building of post-modifier |
-
2014
- 2014-09-02 CN CN201420505206.5U patent/CN204025270U/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245804A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | The heat insulation integrated building of post-modifier |
| CN106245804B (en) * | 2015-06-10 | 2020-12-01 | 上海振纯新型建材有限公司 | Rear structure heat preservation integration building |
| CN104963930A (en) * | 2015-07-08 | 2015-10-07 | 常州市零伍壹玖电子有限公司 | Stainless steel expansion screw for sports device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |