CN2937600Y - Expansion pipe - Google Patents
Expansion pipe Download PDFInfo
- Publication number
- CN2937600Y CN2937600Y CN 200620097407 CN200620097407U CN2937600Y CN 2937600 Y CN2937600 Y CN 2937600Y CN 200620097407 CN200620097407 CN 200620097407 CN 200620097407 U CN200620097407 U CN 200620097407U CN 2937600 Y CN2937600 Y CN 2937600Y
- Authority
- CN
- China
- Prior art keywords
- expansion tube
- bolt
- wall
- utility
- model
- 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
- Revetment (AREA)
Abstract
The utility model relates to an expandable tubular used to be mounted on the wall body. Threads are provided on the internal wall of the utility model and a progressively retracted shrink mouth is provided at the posterior part. The expandable tubular has a simple structure, can be used forming a complete set with the existing bolts and screws of the standard parts without influencing the beauty of the profile and the bolts are easily to be uninstalled.
Description
Technical field
The utility model relates to a kind of installation fastening piece, particularly a kind of expansion tube.
Background technique
The fastening piece that different used for object is installed on the concrete structure body of wall at present generally is a swell fixture, also be EXPANSION ANCHOR BOLTS, it adopts the elongated screw rod of an afterbody band cone to be enclosed within the expansion tube, there is opening slot at the rear portion of expansion tube, placing swell fixture in the wall hole during installation and tightening the outer nut of body of wall draws screw rod outward, the cone position compressing expansion tube of its afterbody expands, and reaches with the wall hole to be connected fastening purpose.But there is following defective in this swell fixture: the one, its screw rod that adopts is not a general part, with standard bolt can not be general; The 2nd because it is fixing to adopt outer drawing type to expand, can expose the short screw rod that differs of a segment length after fixing usually, influence attractive in appearance, and the people that damages easily; The 3rd, in installation process, also may expand the phenomenon that bolt skids in the wall hole; The 4th, the bolt after installing is not quick detachable, stays potential safety hazard.
The model utility content
The technical problems to be solved in the utility model provides a kind of new expansion tube, and it can be used with the common standard bolt, and can overcome the defective that prior art exists.
The utility model solves the problems of the technologies described above with following technological scheme: the rear portion has the inwall of the expansion tube of opening slot that screw thread is arranged, and there is the reducing of gradually closing formula at the rear portion in the pipe.
The pipe outer wall can be provided with slideproof tooth; The front end of opening slot can be provided with reaming.
The utility model is simple in structure, and is easy to operate, can with existing standard piece bolt, the supporting use of screw, the back exterior wall is installed is only exposed bolt head, do not affect the appearance, and remove bolt easily.
Description of drawings
Fig. 1 is the structural representation of the utility model expansion tube.
Fig. 2 is that schematic representation is looked on the right side of Fig. 1.
Fig. 3 cooperates the view of installing behind the object with expansion tube of the present utility model with standard bolt.
Embodiment
As depicted in figs. 1 and 2, the inwall of expansion tube 1 has the internal thread 2 suitable with standard bolt, and pipe has gradually closing formula reducing 3 in the rear portion, has four front ends that the opening slot 4 of reaming 5 is arranged outward, and the thread at reducing 3 places also is gradually shallow formula and shrinks; The outer wall of expansion tube 1 has two slideproof tooth 6.
During use, expansion tube 1 put into punched, hole depth is slightly larger than in the wall hole 11 of expansion tube length, select the standard bolt 7 of respective length then according to the thickness that object 10 is installed, with spring pad 8, plain cushion 9 passes this bolt in the object 10 and precession expansion tube 1 that needs to install after being inserted in this standard bolt again, when the bolt front end moves to reducing place, because internal diameter herein diminishes gradually, and the opening slot on the tube wall makes that the strength of tube wall diminishes herein, the bolt of reach just can force the reducing part of expansion tube outwards to expand, and compresses wall and understands the purpose of installing to expanding thoroughly.When needs are dismantled, screw out bolt and get final product.
The outer wall of expansion tube 1 is provided with slideproof tooth 6, and expansion tube skids in the wall hole in the time of can preventing swivel bolt; The end of opening slot 4 is provided with reaming 5, so that bolt is easier expansion tube is expanded.
Reducing place also can not be provided with screw thread in pipe, but effect is installed not as being provided with the good of screw thread.
Claims (3)
1. an expansion tube has opening slot at the rear portion of pipe, it is characterized in that: the inwall of expansion tube has screw thread, and there is the reducing of gradually closing formula at the rear portion.
2. expansion tube as claimed in claim 1 is characterized in that: the outer wall of expansion tube has a slideproof tooth at least.
3. expansion tube as claimed in claim 1 or 2 is characterized in that: the front end at opening slot has reaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097407 CN2937600Y (en) | 2006-06-22 | 2006-06-22 | Expansion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097407 CN2937600Y (en) | 2006-06-22 | 2006-06-22 | Expansion pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937600Y true CN2937600Y (en) | 2007-08-22 |
Family
ID=38361627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620097407 Expired - Fee Related CN2937600Y (en) | 2006-06-22 | 2006-06-22 | Expansion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937600Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244529A (en) * | 2013-05-03 | 2013-08-14 | 张进荣 | Expansion anchor bolt |
-
2006
- 2006-06-22 CN CN 200620097407 patent/CN2937600Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244529A (en) * | 2013-05-03 | 2013-08-14 | 张进荣 | Expansion anchor bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201636161U (en) | Insert type expansion screw | |
| WO2018133299A1 (en) | Screw-in anchor bolt and method for installing curtain wall and panel therewith | |
| CN201599289U (en) | Expansion screw with convenient disassembly | |
| CN101463854B (en) | Expansion bolt | |
| CN2937600Y (en) | Expansion pipe | |
| CN207848139U (en) | A kind of hollow anchor bolt | |
| CN104819193A (en) | Invisible expansion screw suitable for multiple wall bodies | |
| CN105927642A (en) | Foundation expanding nut assembly | |
| CN204253533U (en) | Rapid expanding is followed closely | |
| CN204403087U (en) | Multi-sleeve expansion bolt | |
| CN207005028U (en) | A kind of hidden-type expansion bolt | |
| CN205858899U (en) | A kind of anchor expansion nut assembly | |
| CN203272376U (en) | Sleeve for expansion bolt | |
| CN201874942U (en) | Novel expansion screw | |
| CN201080946Y (en) | Expanding bolt | |
| CN201187502Y (en) | Expansion nail | |
| CN2219395Y (en) | Backward hook type detachable expansive bolt | |
| CN205780135U (en) | A kind of expansion type high-strength bolt securing member | |
| CN202991762U (en) | Demountable and reusable expansion screw | |
| CN203430944U (en) | Expansion nut and dismounting tool for dismounting expansion nut | |
| CN201554729U (en) | Double-head expansion screw | |
| CN2336126Y (en) | Countersunk expansion bolt | |
| CN2242990Y (en) | Top-expansion type expansion bolt | |
| CN2292181Y (en) | Upset screw | |
| CN2498393Y (en) | Two end expandable screw bolt |
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: 20070822 |