CN2238932Y - Expanding screw - Google Patents
Expanding screw Download PDFInfo
- Publication number
- CN2238932Y CN2238932Y CN 96204476 CN96204476U CN2238932Y CN 2238932 Y CN2238932 Y CN 2238932Y CN 96204476 CN96204476 CN 96204476 CN 96204476 U CN96204476 U CN 96204476U CN 2238932 Y CN2238932 Y CN 2238932Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- utility
- bolt
- nut
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to an expansion screw, comprising an expansion tube, a screw bolt and a screw nut. The expansion tube is formed by combining expansion sheets, the lower end and the middle part of the expansion sheets are respectively fixed by a fixed ring and an elastic wire ring, a conical screw nut is arranged in a sliding groove at the upper part of the expansion tube and connects with a screw bolt. The utility model overcomes the disadvantages of the large labor consumption and the poor fastening performance when the common expansion screw is used. The utility model has the advantages of low cost, easy and convenient operation and high reliability.
Description
The utility model relates to a kind of setscrew.
At present, the setscrew of known use is generally by the bolt of being with the tapering cap, expansion tube with seam, packing ring and nut are formed, during use, need behind the hole of getting certain depth and diameter on the building, to put into the expansion tube of strap bolt, only need fastening nut, the bolt of band tapering cap can the dilating expansion pipe, and just setscrew itself is fixed on the building firmly.The expansion tube of this setscrew is an overall structure, and in fact the process of expansion tube distending is exactly the outwards process of folding of tube wall that expands, and therefore the resistance that is subjected to is quite big, and it is also just very hard to turn nut.
The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, thereby provides a kind of simple in structure, uses easy and convenient setscrew.
The utility model comprises expand tube, screw bolt and nut, and expand tube is combined by intumescent sheet, and the lower end of intumescent sheet and middle part are fixed by retaining ring and elastic steel traveler respectively, and tapered cup nut is arranged in the sliding-groove on expand tube top, and links with bolt.During use, turn bolt by nut, bolt matches with tapered cup nut, and tapered cup nut is moved in sliding-groove, thereby reaches the purpose that expand tube expands.
Below in conjunction with drawings and Examples detailed content of the present utility model is described.
Accompanying drawing is a structural representation of the present utility model.
As shown in the figure, the utility model comprises expand tube 1, bolt 2 and nut 3, and expand tube 1 is combined by pintongs intumescent sheet 4, and its compound mode is fixing by retaining ring 5 and elastic steel traveler 6 respectively in the lower end of pintongs intumescent sheet 4 and middle part.The top of the expand tube 1 that combines is provided with sliding-groove 8, is provided with and bolt 2 joining tapered cup nuts 7 in the sliding-groove 8, and nut 3 links with the lower end of bolt 2.During use, setscrew is put in the aperture of having accomplished fluently on the building, and rotating nut 3 is to the threaded tip of bolt 2 lower ends, after this, nut 3 drives bolt 2 rotations, and bolt 2 matches with tapered cup nut 7, tapered cup nut 7 is moved down in sliding-groove 8, thereby overcome the pressure of elastic steel traveler 6, strut expand tube 1, reach on building the fixedly purpose of article.
The utility model is by above-mentioned concrete structure, has simple in structurely, and tightness is strong, makes With convenient, the labour-saving advantage.
Claims (1)
1, a kind of setscrew, comprise expand tube, screw bolt and nut, it is characterized in that: expand tube (1) is combined by intumescent sheet (4), the lower end of intumescent sheet (4) and middle part are fixing by retaining ring (5) and elastic steel traveler (6) respectively, tapered cup nut (7) is arranged in the sliding-groove (8) on expand tube (1) top, and links with bolt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96204476 CN2238932Y (en) | 1996-02-15 | 1996-02-15 | Expanding screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96204476 CN2238932Y (en) | 1996-02-15 | 1996-02-15 | Expanding screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238932Y true CN2238932Y (en) | 1996-10-30 |
Family
ID=33889704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96204476 Expired - Fee Related CN2238932Y (en) | 1996-02-15 | 1996-02-15 | Expanding screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238932Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751306A (en) * | 2018-11-13 | 2019-05-14 | 林仕强 | Detachable dual-purpose expansion member |
-
1996
- 1996-02-15 CN CN 96204476 patent/CN2238932Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751306A (en) * | 2018-11-13 | 2019-05-14 | 林仕强 | Detachable dual-purpose expansion member |
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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 |