CN2391043Y - Combined expansion screw - Google Patents
Combined expansion screw Download PDFInfo
- Publication number
- CN2391043Y CN2391043Y CN 98225217 CN98225217U CN2391043Y CN 2391043 Y CN2391043 Y CN 2391043Y CN 98225217 CN98225217 CN 98225217 CN 98225217 U CN98225217 U CN 98225217U CN 2391043 Y CN2391043 Y CN 2391043Y
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- expansion
- sleeve tube
- combined type
- screw
- 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
Landscapes
- Dowels (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A combined type expansion screw of the utility model relates to an expansion screw, which comprises an expansion sleeve tube, a tight nut, and a shim. The combined type expansion screw is characterized in that the expansion sleeve tube is sheathed on a full-teeth screw rod. Clamping tenons which are symmetrical axially are arranged on the expansion sleeve tube. The small end of a conical nut faces an expansion part of the expansion sleeve tube, and is fixedly screwed on the screw rod. The other end of the expansion sleeve tube is sheathed with the shim and the tight nut in sequence. When the combined type expansion screw is used for suspended ceiling construction, the combined type expansion screw has the advantages of fewer workpieces, fewer working procedures, and acceleration of a construction speed. In addition, because the clamping tenons are arranged on the expansion sleeve tube, the sleeve tube has a clamping and fixing function. The phenomenon of idle rotation which is generated after the sleeve tube is knocked in is prevented effectively.
Description
This newly relates to a kind of swell fixture with the novel combination type setscrew.Be particularly useful for construction usefulness such as concrete wall furred ceiling.
General bushing type swell fixture is used for constructions such as furred ceiling, needs behind weldering one full tooth screw rod on the L matrix, beat expansion sleeve again, and because of troublesome poeration, thus cause speed of application slow, and sleeve pipe often has the idle running phenomenon, fixes unstable sensation to the people.In order to overcome above-mentioned defective, the utility model proposes a kind of new technological scheme.
The purpose of this utility model is: a kind of combined type setscrew is provided, the tooth screw rod is helped in the screw rod improvement of setscrew.Thereby the minimizing workpiece improves speed of application.
The purpose of this utility model can be achieved through the following technical solutions: the combined type setscrew, comprise expansion sleeve, tightening nut and pad, characteristics are: expansion sleeve is set on the full tooth screw rod, expansion sleeve is provided with the trip of axial symmetry and dimpling, so that casing clamp is fixed in wall, eliminate sleeve pipe idle running phenomenon; The small end of one tapered cup nut is rotated with on screw rod facing to the bulge of expansion sleeve, the other end of expansion sleeve is arranged with pad and tightening nut successively, when tightening nut, promotes expansion sleeve, casing expandable portion opens because of the miner diameter end extruding of tapered cup nut, thereby reaches fastening purpose.
Not diminishing sleeve pipe working life for the elastic groove that reduces expansion sleeve does not hold when bulge is expanded stress too to concentrate, is circular aperture at the not end of expansion sleeve elastic groove.
Superiority of the present utility model is: do not need to add L type fixed plate again and weld full tooth screw rod, thereby workpiece is few, operation is few, and the furred ceiling speed of application is accelerated; Because of expansion sleeve is provided with trip, sleeve pipe there is the fixing effect again, has prevented that effectively sleeve pipe from being knocked in the idle running phenomenon that produces behind the wall.
Describe in detail below by drawings and Examples.
Accompanying drawing: be the utility model part sectional structure schematic representation.
Embodiment: as figure, the utility model is partly shown in the sectional structure schematic representation, the utility model comprises: expansion sleeve 2, tightening nut 5 and pad 4, characteristics are: expansion sleeve 2 is set on the full tooth screw rod 1, expansion sleeve 2 is provided with trip 22 and two pairs of axially symmetrical elastic grooves 23 of a pair of axial symmetry, the miner diameter end of one tapered cup nut 3 is rotated with on screw rod 1 facing to the bulge of expansion sleeve 2, the other end of expansion sleeve 2 is arranged with pad 4 and tightening nut 5 successively, is circular aperture 21 at the not end of expansion sleeve 2 elastic grooves 23.
Claims (2)
1. combined type setscrew, comprise expansion sleeve, tightening nut and pad, it is characterized in that: expansion sleeve is set on the full tooth screw rod, expansion sleeve is provided with the trip of axial symmetry, the small end of one tapered cup nut is rotated with on the screw rod facing to the bulge of expansion sleeve, and the other end of expansion sleeve is arranged with pad and tightening nut successively.
2. by the described combined type setscrew of claim 1, it is characterized in that: the not end at the expansion sleeve elastic groove is a circular aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225217 CN2391043Y (en) | 1998-09-25 | 1998-09-25 | Combined expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225217 CN2391043Y (en) | 1998-09-25 | 1998-09-25 | Combined expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391043Y true CN2391043Y (en) | 2000-08-09 |
Family
ID=33975945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98225217 Expired - Fee Related CN2391043Y (en) | 1998-09-25 | 1998-09-25 | Combined expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391043Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502658A (en) * | 2012-05-07 | 2014-01-08 | 技术发明和探索公司Spit | Expansion bushing dowel |
| CN106351199A (en) * | 2016-10-14 | 2017-01-25 | 江苏省谏壁船闸管理所 | Reinforcement method of navigation lock hydraulic structure |
| CN106522450A (en) * | 2016-11-05 | 2017-03-22 | 杭州金知科技有限公司 | Building ceiling structure capable of shortening distance between pinch plates and ceiling |
-
1998
- 1998-09-25 CN CN 98225217 patent/CN2391043Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502658A (en) * | 2012-05-07 | 2014-01-08 | 技术发明和探索公司Spit | Expansion bushing dowel |
| CN103502658B (en) * | 2012-05-07 | 2016-01-20 | 技术发明和探索公司Spit | Expansion sleeve locating stud |
| CN106351199A (en) * | 2016-10-14 | 2017-01-25 | 江苏省谏壁船闸管理所 | Reinforcement method of navigation lock hydraulic structure |
| CN106522450A (en) * | 2016-11-05 | 2017-03-22 | 杭州金知科技有限公司 | Building ceiling structure capable of shortening distance between pinch plates and ceiling |
| CN106522450B (en) * | 2016-11-05 | 2020-04-10 | 广州珊玛建材有限公司 | Can shorten building furred ceiling structure with ceiling board interval |
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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 |