CN2268796Y - Expansion pipe - Google Patents
Expansion pipe Download PDFInfo
- Publication number
- CN2268796Y CN2268796Y CN 96246021 CN96246021U CN2268796Y CN 2268796 Y CN2268796 Y CN 2268796Y CN 96246021 CN96246021 CN 96246021 CN 96246021 U CN96246021 U CN 96246021U CN 2268796 Y CN2268796 Y CN 2268796Y
- Authority
- CN
- China
- Prior art keywords
- expansion tube
- expansion pipe
- wall
- bolt
- tapered cup
- 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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- Supports For Pipes And Cables (AREA)
Abstract
The utility model relates to a novel expansion pipe for mounting on a wall. A main expansion pipe is sheathed in an auxiliary expansion pipe. A conical nut is provided with standard screw threads. Through the rotation of a standard bolt, the conical nut is pushed into the expansion pipe so that the main expansion pipe and the auxiliary expansion pipe expand outward to be tightly fastened to the wall and the relative position of the bolt is not changed. Compared with the existing expansion screw, the expansion pipe has the advantages of simple structure and convenient operation. Meanwhile, no bolt protrudes out of the wall, the utility model can be served as the standard bolt and has enhanced flexibility.
Description
The utility model belongs to a kind of installation fastening piece, particularly a kind of novel expansion tube.
The existing fastening piece that is used to be installed in body of wall or ceiling board generally is a swell fixture, it adopts the elongated screw rod of an afterbody band cone to be enclosed within the expansion tube, place the nut that rotates outside the body of wall in the wall hole that screw rod is drawn outward swell fixture during installation, its afterbody cone compressing expansion tube expands, and reaches the purpose fastening with the wall hole.But also there is deficiency in this swell fixture, the one, its screw rod that adopts is not a general part, with the standard piece screw can not be general; The 2nd, because it is fixing to adopt outer drawing type to expand, fixedly back wall leaves one section screw rod outward, has both influenced using scope, and is not attractive in appearance again.
The purpose of this utility model provides a kind of novel expansion tube, and it adopts tapered cup nut to cooperate universal screw, and it is fixing that expansion tube is expanded, and overcome the deficiencies in the prior art.
The technical solution of the utility model is such: a kind of novel expansion tube, be enclosed within the secondary expansion tube by main expansion tube, the two side of major and minor expansion tube all has positioning runner, the tapered cup nut that both sides have dowel is stuck in the positioning runner, the head diameter of this tapered cup nut is less than main expansion tube internal diameter, and tail diameter is greater than main expansion tube internal diameter, and the screw thread of this tapered cup nut is identical with the master serew screw thread.Like this, when a standard bolt precession from the head is positioned at the tapered cup nut of expansion tube afterbody, drive tapered cup nut and move to the expansion tube middle part, because the tail diameter of tapered cup nut is greater than main expansion tube internal diameter along positioning runner, force expansion tube outwards to expand, fastening with body of wall.
This novel expansion tube has simple in structure, easy to operate advantage, compare with existing swell fixture, nut itself does not move owing to adopt body of wall inner conical nut to move, so body of wall does not have nut to protrude outward, simultaneously can be general with existing standard bolt, using scope is wide, and flexibility improves greatly.
Describe structure of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model decomposition texture schematic representation.
Fig. 2 is the utility model composite structure schematic representation.
As shown in Figure 1, 2, main expansion tube 1 is enclosed within the secondary expansion tube 2, and steel tapered cup nut 3 head diameters are less than the internal diameter of main expansion tube 1, and tail diameter is then greater than this internal diameter.The both sides of tapered cup nut 3 respectively are provided with a locating stud 5.The sidewall of major and minor expansion tube all has positioning runner 4, and the locating stud 5 of tapered cup nut 3 is stuck in the positioning runner 4.The chute tail end of main expansion tube 1 is an opening, and secondary expansion tube 2 chute tail ends seal, so tapered nut 3 can not come off.The internal thread of tapered cup nut 3 is identical with the standard piece bolt thread.
When using this novel expansion tube, plain bolt is passed expansion tube precession tapered cup nut slightly, put into then punched, diameter is a bit larger tham in the wall hole of external diameter of secondary expansion tube, the nut of swivel bolt, under the effect of the support on the metope, tapered cup nut moves in expansion tube, forces major and minor expansion tube outwards to expand, compress wall and understand thoroughly, and bolt is with respect to the not change of position of body of wall to fastening purpose.
Claims (3)
1. novel expansion tube, it is characterized in that main expansion tube is enclosed within the secondary expansion tube, the two side of major and minor expansion tube has positioning runner, the tapered cup nut that both sides have locating stud is stuck in the positioning runner, the head diameter of this tapered cup nut is less than main expansion tube internal diameter, and tail diameter is greater than main expansion tube internal diameter, and the screw thread of tapered cup nut is identical with standard thread.
2. novel expansion tube according to claim 1 is characterized in that described secondary expansion tube head has reducing.
3. novel expansion tube according to claim 1 is characterized in that described secondary expansion tube outer wall is provided with anti-skidding tooth or anti-skidding reticulate pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96246021 CN2268796Y (en) | 1996-12-25 | 1996-12-25 | Expansion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96246021 CN2268796Y (en) | 1996-12-25 | 1996-12-25 | Expansion pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2268796Y true CN2268796Y (en) | 1997-11-26 |
Family
ID=33918855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96246021 Expired - Fee Related CN2268796Y (en) | 1996-12-25 | 1996-12-25 | Expansion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2268796Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111043A1 (en) * | 2005-04-20 | 2006-10-26 | Chengzhang Peng | A reinforced wiring box |
| CN100432369C (en) * | 2005-07-06 | 2008-11-12 | 中国石油大学(北京) | Rotary expansion tool for expansible pipe |
-
1996
- 1996-12-25 CN CN 96246021 patent/CN2268796Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111043A1 (en) * | 2005-04-20 | 2006-10-26 | Chengzhang Peng | A reinforced wiring box |
| CN100432369C (en) * | 2005-07-06 | 2008-11-12 | 中国石油大学(北京) | Rotary expansion tool for expansible pipe |
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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 |