CN2033446U - Pipe gap friction expanding joint of anchor arm - Google Patents
Pipe gap friction expanding joint of anchor arm Download PDFInfo
- Publication number
- CN2033446U CN2033446U CN 88206566 CN88206566U CN2033446U CN 2033446 U CN2033446 U CN 2033446U CN 88206566 CN88206566 CN 88206566 CN 88206566 U CN88206566 U CN 88206566U CN 2033446 U CN2033446 U CN 2033446U
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- anchor arm
- pipe
- 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.)
- Withdrawn
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Abstract
The utility model discloses a friction expanding joint of anchor arm used for mine support, which is composed of an anchor arm pipe and a set of wedges. The anchor arm can be firmly fixed with the rocks, and the borne axial tension is above two times as big as the original support anchor arm, so the utility model improves the safety of the mine lane support, reduces the incidence rate of the accidents and is helpful to protect the government property and the personal safety.
Description
The utility model belongs to a kind of support anchor rod of used for mine laneway, the wedge-expanded anchor pole of particularly a kind of pipe seam friction end points.
The support anchor rod that present home or overseas uses in mine working is the pipe seam frictional rock bolt, its structure for a metal tube axially on be provided with an opening, the front end of metal tube is processed into the pointed shape of awl, time spent, anchor pole is squeezed in the good petrosal foramen of prior brill, make between anchor pole and the anchor hole wall and retrain rock, play support action by static friction.Though this anchor pole has played certain support action to a certain extent, but still exist the not too big key shortcoming of support action, owing to still become the face of cylinder to contact after this anchor pole is squeezed into rock with the rock hole wall, yet this moment, anchor pole and rock wall " fixing " was to finish by the effect of the stiction between anchor pole and the crag merely.During work, if the axial tension of this anchor pole during greater than this stiction, then anchor pole can slide relatively with rock, and rock comes off and loses support capacity, various accidents may occur, causes serious consequences such as Personal Risk.
Provide order of the present utility model a kind of easy to use, the wedge-expanded anchor pole of the firm pipe seam of supporting friction end points.
The utility model is achieved in that it on the basis of original pipe seam frictional rock bolt, sets up a cover and make the front end of pipe produce the wedge mechanism that expands in the pipe of this anchor pole, and this wedge mechanism is made of voussoir and tapered bar at least.During use, earlier the integral body of this anchor pole is squeezed in the good petrosal foramen of prior brill, and then, voussoir is expanded to both sides, thereby whole anchor pole is securely fixed on the rock with the tapered bar in instruments such as the electric hammer strike anchor pole pipe.
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
Accompanying drawing 1 is the utility model anchor pole overall structure figure.
Accompanying drawing 2 is structural representations of the present utility model.
Accompanying drawing 3 is elevations of anchor pole pipe of the present utility model.
Accompanying drawing 4 is structure charts (a is that elevation, b are left views) of the utility model tapered bar.
Accompanying drawing 5 is work force diagrams of existing anchor pole.
Accompanying drawing 6 is the utility model work force diagrams.
Find out with reference to accompanying drawing 2, it mainly is made up of anchor pole pipe (1), voussoir (3), tapered bar (2), anchor pole pipe (1) for be axially arranged with opening, front end is pointed structure, be provided with two voussoirs (3) and a tapered bar (2) in this pipe, the front end of this tapered bar is provided with a supporting plate (6) and a guide finger (5), supporting plate has been easy to loading and unloading and positioning action, and guide finger plays guiding vertically, the effect of radial location.At the axially open place of anchor pole pipe (1), be provided with a locating slot (4), make tapered bar, voussoir in the pipe of packing into, by supporting plate, guide finger, locating slot, whole wedge mechanism is limited in the anchor pole pipe.During use, will the anchor pole of this wedge mechanism be housed, integral body is squeezed in the good petrosal foramen of prior brill, then with instruments such as electric hammers, the tapered bar in the anchor pole pipe (2) is hit, and the voussoir of front end outwards expands, and whole anchor pole is connected securely with rock.
The utility model has the advantage of that it can be mutually firmly fixing with rock, when being used in mine timbering, its axial pulling force that bears is more than two times of original support anchor rod. Thereby greatly improved the security of mine timbering, reduced the accident incidence, be conducive to protect national wealth and personal safety.
Claims (2)
1, a kind of anchor pole that is used for mine support, it is made of the anchor pole pipe, it is characterized in that: be provided with the wedge mechanism that a cover expands the front end of pipe in the anchor pole pipe, this wedge mechanism is made of voussoir and tapered bar at least.
2, according to the described anchor pole of claim 1, it is characterized in that: be provided with two voussoirs and a tapered bar in the anchor pole pipe, the front end of tapered bar is provided with a supporting plate and a guide finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206566 CN2033446U (en) | 1988-06-01 | 1988-06-01 | Pipe gap friction expanding joint of anchor arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206566 CN2033446U (en) | 1988-06-01 | 1988-06-01 | Pipe gap friction expanding joint of anchor arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033446U true CN2033446U (en) | 1989-03-01 |
Family
ID=4840737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88206566 Withdrawn CN2033446U (en) | 1988-06-01 | 1988-06-01 | Pipe gap friction expanding joint of anchor arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033446U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771380B (en) * | 2004-01-28 | 2010-05-05 | 电气化学工业株式会社 | Expandable injection bolt and grouting method using same |
| CN101711305B (en) * | 2007-04-17 | 2013-04-17 | 澳大利亚应用研究集团有限公司 | Plastic rock-bolt or dowel and method of manufacture of the same |
| CN103161485A (en) * | 2011-12-16 | 2013-06-19 | 洛阳工岩科技有限公司 | Pre-stressed anchoring conduit |
| CN103161485B (en) * | 2011-12-16 | 2016-12-14 | 洛阳工岩科技有限公司 | Pre-stressed anchoring conduit |
-
1988
- 1988-06-01 CN CN 88206566 patent/CN2033446U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771380B (en) * | 2004-01-28 | 2010-05-05 | 电气化学工业株式会社 | Expandable injection bolt and grouting method using same |
| CN101711305B (en) * | 2007-04-17 | 2013-04-17 | 澳大利亚应用研究集团有限公司 | Plastic rock-bolt or dowel and method of manufacture of the same |
| CN103161485A (en) * | 2011-12-16 | 2013-06-19 | 洛阳工岩科技有限公司 | Pre-stressed anchoring conduit |
| CN103161485B (en) * | 2011-12-16 | 2016-12-14 | 洛阳工岩科技有限公司 | Pre-stressed anchoring conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |