CN202251296U - Novel expansion screw - Google Patents
Novel expansion screw Download PDFInfo
- Publication number
- CN202251296U CN202251296U CN2011202903724U CN201120290372U CN202251296U CN 202251296 U CN202251296 U CN 202251296U CN 2011202903724 U CN2011202903724 U CN 2011202903724U CN 201120290372 U CN201120290372 U CN 201120290372U CN 202251296 U CN202251296 U CN 202251296U
- Authority
- CN
- China
- Prior art keywords
- expansion
- short
- pieces
- expansion tube
- 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
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to an expansion screw which comprises a nut, a gasket, an expansion tube and a taper bolt. Two fixed forced tight wedges are symmetrically arranged on both sides of the middle part of the taper bolt; one end of the expansion tube is symmetrically provided with two long expansion pieces and two short expansion pieces; the positions of the two short expansion pieces correspond to those of the two forced tight wedges; and expansion slots are arranged between the two long expansion pieces and the two short expansion pieces. The nut is tightened, the expansion tube is extruded by the gasket and moves towards the tail of the bolt, the expansion slots are opened, the bolt spreads the two long expansion pieces of the expansion tube through oblique conical ring surfaces, simultaneously the two forced tight wedges spread the two short expansion pieces of the expansion tube, so that the purpose that the tail and the middle part of the expansion tube expand simultaneously is achieved. The novel expansion screw has a simple structure and good fixing effect.
Description
Technical field
The utility model relates to a kind of setscrew.
Background technique
Known setscrew commonly used generally is made up of bolt, the expansion tube that has fluting, pad and the nut of an end band tapering cap; On wall, punch earlier during use; Then the expansion tube of strap bolt is put into the hole, fastening nut, the bolt of band tapering cap is through tapering cap dilating expansion pipe; Make the expansion tube afterbody be horn-like, thereby setscrew is fixed on the wall.Its deficiency is: expansion tube can only expand at afterbody, and fixed effect is not good.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, the setscrew of good fixing effect.
The utility model is achieved in that this setscrew is made up of nut (1), pad (2), expansion tube (3), taper bolt (8).It is characterized in that: described taper bolt (8) one ends are for being an oblique cone anchor ring (10), and the middle part bilateral symmetry is provided with two fixing packing wedges (9); One end of described expansion tube (3) is provided with two long intumescent sheets (6) and two short intumescent sheets (5), and the position of two short intumescent sheets (5) is corresponding with the position of two packing wedges (9); Be provided with expansion slot (4) between described long intumescent sheet (6) and the short intumescent sheet (5).
The utility model has the advantages that: simple in structure, good fixing effect, pattern is novel.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the front elevation of expansion tube.
Fig. 3 is the left view of expansion tube.
Fig. 4 is the structural representation of taper bolt.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
Order by expansion tube (3), pad (2) is nested on the taper bolt (8); Two packing wedges (9) on the taper bolt (8) are positioned between the two long intumescent sheets (6); Nut (1) is threaded to gently on the outside thread (7) of taper bolt (8); Expansion tube (3) is moved to the afterbody of taper bolt (8), and expansion slot (4) opens, and taper bolt (8) is through two long intumescent sheets (6) of afterbody oblique cone anchor ring (10) dilating expansion pipe; Two of two packing wedge dilating expansion pipes short intumescent sheets (5) simultaneously, thus reach expansion tube (3) afterbody two long intumescent sheets (6) and middle part two lack the purpose that intumescent sheets (5) expand simultaneously.
Claims (2)
1. a setscrew is made up of nut (1), pad (2), expansion tube (3), taper bolt (8), it is characterized in that: described taper bolt (8) one ends are for being an oblique cone anchor ring (10), and the middle part bilateral symmetry is provided with two fixing packing wedges (9); One end of described expansion tube (3) is provided with two long intumescent sheets (6) and two short intumescent sheets (5), and the position of two short intumescent sheets (5) is corresponding with the position of two packing wedges (9).
2. setscrew as claimed in claim 1 is characterized in that: be provided with expansion slot (4) between described long intumescent sheet (6) and the short intumescent sheet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202903724U CN202251296U (en) | 2011-08-11 | 2011-08-11 | Novel expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202903724U CN202251296U (en) | 2011-08-11 | 2011-08-11 | Novel expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251296U true CN202251296U (en) | 2012-05-30 |
Family
ID=46112546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202903724U Expired - Fee Related CN202251296U (en) | 2011-08-11 | 2011-08-11 | Novel expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251296U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470604A (en) * | 2013-09-27 | 2013-12-25 | 攀枝花学院 | Anti-loosening and anti-slip screw bolt structure |
| CN105889246A (en) * | 2014-09-30 | 2016-08-24 | 遵义遵宏螺杆厂 | Anti-skid expansion bolt |
| CN108474400A (en) * | 2016-01-26 | 2018-08-31 | 喜利得股份公司 | The expansion anchor of swelling part with clamping |
-
2011
- 2011-08-11 CN CN2011202903724U patent/CN202251296U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470604A (en) * | 2013-09-27 | 2013-12-25 | 攀枝花学院 | Anti-loosening and anti-slip screw bolt structure |
| CN103470604B (en) * | 2013-09-27 | 2015-08-26 | 攀枝花学院 | A kind of bolt arrangement of locking antiskid |
| CN105889246A (en) * | 2014-09-30 | 2016-08-24 | 遵义遵宏螺杆厂 | Anti-skid expansion bolt |
| CN108474400A (en) * | 2016-01-26 | 2018-08-31 | 喜利得股份公司 | The expansion anchor of swelling part with clamping |
| CN108474400B (en) * | 2016-01-26 | 2020-06-19 | 喜利得股份公司 | Expansion anchor with clamped expansion part |
| US10823216B2 (en) | 2016-01-26 | 2020-11-03 | Hilti Aktiengesellschaft | Expansion anchor with clipped-open expansion part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103541982B (en) | A kind of Nested-type single-side bolt fastener | |
| CN202251296U (en) | Novel expansion screw | |
| CN201599289U (en) | Expansion screw with convenient disassembly | |
| CN203532467U (en) | Combined bolt | |
| CN203889907U (en) | Adjustable beam clamp | |
| CN103696792A (en) | Multi-stage conical synchronous expansion anchor rod | |
| CN205280475U (en) | Bolt tensile test fixes frock | |
| NZ718730A (en) | Expanding wall anchor and use for fixing a component to a support material | |
| CN202571047U (en) | Pulled expansion device | |
| CN202076748U (en) | Rapid self-locking aluminum alloy strain clamp | |
| CN205315448U (en) | Nut is used in locking | |
| CN105186414B (en) | High current busbar through wall device | |
| CN205025889U (en) | Multi -functional anticreep inflation hook | |
| CN104164973A (en) | Steel tube fixing mechanism convenient and fast to disassemble and assemble | |
| CN204804120U (en) | Cable anchor clamps | |
| CN204025997U (en) | Multiplex rapid pipe joint | |
| CN203585574U (en) | Adjustable rack | |
| CN204381681U (en) | A kind of welding slag receiving system | |
| CN203569889U (en) | Long threaded channel type conical connecting piece | |
| CN203932916U (en) | All pressures shading ring for high height above sea level transformer station | |
| CN203706753U (en) | An insulator winder | |
| CN204254035U (en) | A kind of in a row sickleshaped pipe clamp support | |
| CN203273080U (en) | High-pressure conveying pipeline | |
| CN203747243U (en) | Anti-drop portable anti-thunder side rod for high-voltage transmission line | |
| CN206943640U (en) | A kind of adjustable hose clamp |
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: 20120530 Termination date: 20130811 |