CN202883593U - Expansion bolt capable of being extracted and used repeatedly - Google Patents
Expansion bolt capable of being extracted and used repeatedly Download PDFInfo
- Publication number
- CN202883593U CN202883593U CN 201220450503 CN201220450503U CN202883593U CN 202883593 U CN202883593 U CN 202883593U CN 201220450503 CN201220450503 CN 201220450503 CN 201220450503 U CN201220450503 U CN 201220450503U CN 202883593 U CN202883593 U CN 202883593U
- Authority
- CN
- China
- Prior art keywords
- expansion tube
- screw rod
- external diameter
- expansion
- tube
- 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 an expansion bolt capable of being extracted and used repeatedly. The expansion bolt capable of being extracted and used repeatedly comprises a hexagon nut, a gasket, an expansion tube and a threaded rod. The expansion bolt capable of being extracted and used repeatedly is characterized in that the front end of the threaded rod is an outer hexagonal body, the rear end of the threaded rod is a cone body, a clockwise inner thread is arranged at the front end of the interior of the expansion tube, the inner thread is matched with an outer thread of the threaded rod, and a round nut is arranged between the expansion tube on the threaded rod and the gasket. A wrench can be used for clamping or an outer hexagon sleeve can be used for hitching the outer hexagon body of the front end of the threaded rod to rotate clockwise, the threaded rod is continuously screwed into a wall hole, the bottom portion of the cone body abuts against the bottom portion of the wall hole, therefore, the expansion tube is ejected out and returns to an original form, friction force between the expansion tube and the wall hole is reduced, and the expansion tube is extracted. The expansion bolt can be used repeatedly and saves materials.
Description
Technical field
The utility model relates to a kind of bolt, especially a kind of EXPANSION ANCHOR BOLTS.
Background technique
The EXPANSION ANCHOR BOLTS of generally using at present mainly is made of screw rod, expansion tube, hexagon nut, compression spring, pad, during use, tighten hexagon nut, the screw rod with cone is pressed in the expansion tube, expansion tube swells and is fastened in the wall, this EXPANSION ANCHOR BOLTS is difficult to extract, even use brute force that it is extracted, also will damage body of wall, and screw rod also be difficult to separate with expansion tube, can't reuse, cause the waste of resource.
Summary of the invention
The utility model provides a kind of reusable EXPANSION ANCHOR BOLTS of extracting.
For achieving the above object, the technical solution of the utility model is:
A kind ofly extract reusable EXPANSION ANCHOR BOLTS, comprise hexagon nut, pad, expansion tube and screw rod, it is characterized in that:
The front end of described screw rod is the outer-hexagonal body, and the rear end is cone;
The front end of described expansion tube inside is provided with clockwise internal thread, matches with the outside thread of screw rod;
Between expansion tube on the screw rod and pad, be provided with round nut.
The outer wall of the rear end of described expansion tube equidistantly has four grooves.
Described expansion tube profile is the cartridge case shape, and its leading portion external diameter is less than the back segment external diameter, and the external diameter of back segment equates with the bottom external diameter of screw rod.
Described expansion tube profile is cylindrical shape, and its external diameter equates with the bottom external diameter of screw rod.
Described expansion tube is by the expansion tube nut of circle and metal tube is affixed forms, and the external diameter of expansion tube nut and the external diameter of metal tube all equate with the bottom external diameter of screw rod.
The EXPANSION ANCHOR BOLTS of above structure, the screw front end that available spanner vises or external hexagonal sleeve entangles the outer-hexagonal body turns clockwise, screw rod is constantly by in the precession wall hole, bottom, wall hole is pushed up in the bottom of taper, thereby expansion tube is ejected, and resiles, reduced the frictional force with porthole, EXPANSION ANCHOR BOLTS is pulled out, and this EXPANSION ANCHOR BOLTS is reusable, saves material.In addition, as long as change the screw rod of different length, just can become the EXPANSION ANCHOR BOLTS of another kind of insertion depth, easy to use, dismounting is simple.Also handlebar round nut cancellation, the length of lengthening expansion tube can make EXPANSION ANCHOR BOLTS fix on the wall more tightly.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing of expansion tube mode 1;
Fig. 3 is the sectional drawing of expansion tube mode 2;
Fig. 4 is the sectional drawing of expansion tube mode 3;
Fig. 5 is the A-A sectional view of expansion tube;
Among the figure, outer-hexagonal body 1, screw rod 2, hexagon nut 3, pad 4, round nut 5, internal thread 6, expansion tube 7, outside thread 8, groove 9, cone 10, compression spring 11, expansion tube nut 12, metal tube 13.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in Figure 1, be structural representation of the present utility model, the hexagon nut 3, compression spring 11, pad 4, the expansion tube 7 that comprise screw rod 2 and be enclosed within screw rod 2 outsides wherein, also have additional round nut 5 between pad 4 and the expansion tube 7; With expansion tube 7 partly cut-aways as seen, the front end of expansion tube 7 inside is provided with clockwise internal thread 6, matches with the outside thread 8 of screw rod 2, and in conjunction with shown in Figure 5, the outer wall of expansion tube 7 rear ends equidistantly has four grooves that parallel to the axis 9; Screw rod 2 front ends are outer-hexagonal body 1, and the rear end is cone 10, and the bottom diameter of cone is greater than the external diameter of screw rod stage casing threaded body.
In the installation process, on wall, bore a diameter than the slightly large circular hole of cone 10 base diameters of screw rod 2 with percussion drill first, hexagon nut 3, compression spring 11, pad 4 removals, then EXPANSION ANCHOR BOLTS is driven in porthole to the bottom, left hand fixed expansion pipe 7, hold the outer-hexagonal body 1 that spanner vises screw rod 2 front ends with the right hand, or entangle outer-hexagonal body 1 with Hexagonal jacket, be rotated counterclockwise screw rod 2, because expansion tube 7 and the frictional force of wall frictional force greater than expansion tube 7 and screw rod 2, expansion tube 7 transfixions, screw rod 2 are constantly mobile outward, and expansion tube 7 constantly is extruded deformed dilation, produce huge frictional force with wall, EXPANSION ANCHOR BOLTS just is fixed on the wall firmly like this, regulates round nut 5, makes itself and the distance of the cone base of screw rod 2 degree of depth for the brill porthole, can pack into screw rod 2 to the hanger suppending hole this moment, pack into successively again pad 4, compression spring 11, hexagon nut 3 tightens hexagon nut 3, and hanger just can have been fixed on the wall.Wherein, to be set to outer-hexagonal body 1 be for the ease of spanner or external hexagonal sleeve twisting screw rod 2 to the front end of screw rod 2; Increase arranges round nut 5, one, plays studdle 2, prevents the effect that it is bent, and the 2nd, in the process that hexagon nut 3 tightens, limit the distance that tightens of hexagon nut 3, prevent that EXPANSION ANCHOR BOLTS from being extracted from wall.The EXPANSION ANCHOR BOLTS demolishing process, lay down successively first hexagon nut 3, compression spring 11, pad 4 and hanger, vise with spanner again or outer-hexagonal body 1 that external hexagonal sleeve entangles screw rod 2 front ends turns clockwise, screw rod 2 is constantly by in the precession wall hole, bottom, wall hole is pushed up in the bottom of cone 10, and expansion tube 7 is ejected, and resiles, reduce with the frictional force of porthole, so just can from porthole, extract.
Claims (5)
1. can extract reusable EXPANSION ANCHOR BOLTS for one kind, comprise hexagon nut, pad, expansion tube and screw rod, it is characterized in that:
The front end of described screw rod (2) is outer-hexagonal body (1), and the rear end is cone (10);
The inner front end of described expansion tube (7) is provided with clockwise internal thread (6), matches with the outside thread (8) of screw rod (2);
Between the upper expansion tube (7) of screw rod (2) and pad (4), be provided with round nut (5).
2. according to claim 1ly extract reusable EXPANSION ANCHOR BOLTS, it is characterized in that:
The outer wall of described expansion tube (7) rear end equidistantly has four grooves (9).
3. according to claim 2ly extract reusable EXPANSION ANCHOR BOLTS, it is characterized in that:
Described expansion tube (7) profile is the cartridge case shape, and its leading portion external diameter is compressed less than the back segment external diameter, and the external diameter of back segment equates with the bottom external diameter of screw rod (2).
4. according to claim 2ly extract reusable EXPANSION ANCHOR BOLTS, it is characterized in that:
Described expansion tube (7) profile is cylindrical shape, and its external diameter equates with the bottom external diameter of screw rod (2).
5. according to claim 2ly extract reusable EXPANSION ANCHOR BOLTS, it is characterized in that: described expansion tube (7) is by expansion tube nut (12) and affixed the forming of metal tube (13) of circle, and the external diameter of the external diameter of expansion tube nut (12) and metal tube (13) all equates with the bottom external diameter of screw rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450503 CN202883593U (en) | 2012-09-06 | 2012-09-06 | Expansion bolt capable of being extracted and used repeatedly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450503 CN202883593U (en) | 2012-09-06 | 2012-09-06 | Expansion bolt capable of being extracted and used repeatedly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883593U true CN202883593U (en) | 2013-04-17 |
Family
ID=48075025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450503 Expired - Fee Related CN202883593U (en) | 2012-09-06 | 2012-09-06 | Expansion bolt capable of being extracted and used repeatedly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410492A (en) * | 2013-08-28 | 2013-11-27 | 中煤科技集团公司 | Flying stop device for carbon dioxide extraction device |
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN110030247A (en) * | 2019-03-29 | 2019-07-19 | 上海全筑建筑装饰集团股份有限公司 | A kind of assembled facing hanging plate component of a system |
-
2012
- 2012-09-06 CN CN 201220450503 patent/CN202883593U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410492A (en) * | 2013-08-28 | 2013-11-27 | 中煤科技集团公司 | Flying stop device for carbon dioxide extraction device |
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
| CN110030247A (en) * | 2019-03-29 | 2019-07-19 | 上海全筑建筑装饰集团股份有限公司 | A kind of assembled facing hanging plate component of a system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20150906 |
|
| EXPY | Termination of patent right or utility model |