CN2228132Y - Double-wedge metal anchoring-bolt - Google Patents
Double-wedge metal anchoring-bolt Download PDFInfo
- Publication number
- CN2228132Y CN2228132Y CN 95200046 CN95200046U CN2228132Y CN 2228132 Y CN2228132 Y CN 2228132Y CN 95200046 CN95200046 CN 95200046 CN 95200046 U CN95200046 U CN 95200046U CN 2228132 Y CN2228132 Y CN 2228132Y
- Authority
- CN
- China
- Prior art keywords
- wedge
- double
- bolt
- anchoring
- voussoir
- 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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Abstract
The utility model relates to a double-wedge metal anchoring-bolt, composed of a double wedge (1), a sprag (2), an anchoring-bolt rod body (3), and a supporting plate (4), wherein the column surface which the double wedge is contacted with drillings is a smooth surface; the sprag is a section of wedge body which has no sharp corners. The anchor rod has the advantages of easy manufacture and low cost, has a favorable anchoring effect in hard rock and soft rock, and is suitable for coal mines, and other roadway and engineering whose mines adopt the anchoring bolt to support and protect.
Description
The utility model is a kind of colliery double-wedge type anchor metal.Form by folding wedge, voussoir, anchor rod body and supporting plate.Be applicable to the tunnel and the engineering of the employing bolt support of colliery and other mines.
A kind of double-wedge type anchor metal is abroad arranged, form by folding wedge, voussoir, anchor rod body and supporting plate.Folding wedge is made up of two semicylinders, and the top has metal hook to be connected to each other.The inboard of two semicylinders has the wedge surface that cooperates with the voussoir wedge surface respectively.The face of cylinder contacts with drill hole wall, and annular tooth is arranged on it.Voussoir is a complete wedge, and voussoir is connected with anchor rod body with screw thread.Its weak point is: 1. processed complex, cost height.In soft rock since the folding wedge flank of tooth to embed the anchor hole wall darker, anchoring place anchor hole with install before the anchor head diameter differ bigger, anchoring effect is poor.
The purpose of this utility model is: the double-wedge type anchor metal that a kind of cost is low, have higher anchored force in hard rock, middle hard rock and soft rock is provided.
The purpose of this utility model can take following measure to reach: change the flank of tooth of folding wedge into the light face, change voussoir into one section wedge, remove the wedge nose part.
Fig. 1 is an embodiment of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing: 1 is voussoir, the 2nd among the figure one, folding wedge, the 3rd, anchor rod body, the 4th, supporting plate.Voussoir is one section wedge, and the center has spiral shell Wen Kongyu anchor rod body to connect.Folding wedge is made up of two semicylinders, is interconnected by metal hook.The inboard of two semicylinders has the wedge surface that matches with voussoir respectively.
During use the double-wedge type anchor metal assembled by Fig. 1 and be placed in the boring, when supporting plate during near top board, anchor rod body is turned clockwise, body of rod head headed on folding wedge and rose this moment.When supporting plate contacted fully with top board, voussoir moved down along the folding wedge wedge surface and makes the wedging in boring of folding wedge distending, finishes anchoring.
The utility model compared with prior art has following advantage: 1. the flank of tooth of folding wedge changes into The face of cylinder, processing is simple. Voussoir is shortened, and has removed the wedge angle part of wedge, can satisfy Material has been saved again in requirement on the performance. Make the anchor pole cost. 2. the light face is two in hard rock Wedge is bigger to the frictional force of rock mass than the flank of tooth, so anchor force strengthens. Light face folding wedge in soft rock Be difficult for entering rock mass, anchoring effect is good.
Claims (1)
1. a colliery double-wedge type anchor metal is made up of folding wedge (1), voussoir (2), anchor rod body (3), supporting plate (4), it is characterized in that, folding wedge is the light face with the periphery that boring contacts, and voussoir (2) is one section wedge that removes wedge angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200046 CN2228132Y (en) | 1995-01-10 | 1995-01-10 | Double-wedge metal anchoring-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200046 CN2228132Y (en) | 1995-01-10 | 1995-01-10 | Double-wedge metal anchoring-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2228132Y true CN2228132Y (en) | 1996-05-29 |
Family
ID=33853903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200046 Expired - Fee Related CN2228132Y (en) | 1995-01-10 | 1995-01-10 | Double-wedge metal anchoring-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2228132Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365245C (en) * | 2003-11-11 | 2008-01-30 | 吴德兴 | Shell expansion type rock bolt |
-
1995
- 1995-01-10 CN CN 95200046 patent/CN2228132Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365245C (en) * | 2003-11-11 | 2008-01-30 | 吴德兴 | Shell expansion type rock bolt |
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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 |