CN2565988Y - Recoverable anchor rod for roof supporting - Google Patents
Recoverable anchor rod for roof supporting Download PDFInfo
- Publication number
- CN2565988Y CN2565988Y CN 02268869 CN02268869U CN2565988Y CN 2565988 Y CN2565988 Y CN 2565988Y CN 02268869 CN02268869 CN 02268869 CN 02268869 U CN02268869 U CN 02268869U CN 2565988 Y CN2565988 Y CN 2565988Y
- Authority
- CN
- China
- Prior art keywords
- rod
- anchor rod
- anchor
- head
- utility
- 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 recoverable anchor rod for mine underground roof support, which comprises an anchor rod head part and a rod body part. The utility model is characterized in that the anchor rod head is connected with the rod by screw threads, and the junction of the anchor rod head and the rod body is sheathed with polypropylene antistatic flame resisting plastic tube; the anchor rod head is made of levorotatory screw-thread steel which can ensure the anchoring force and the elongation percentage of the anchor rod, and the rod body is made of steel bars; recovered rod bodies can also be used as side anchor rod. When in use, the anchor rod head is fixed with anchoring agent, and during disassembly, the plastic tube is firstly disassembled and then the rod body is screwed down from the screw threads. Compared with the prior art, the utility model has the advantages of convenient disassembly, convenient recovery, multiple functions on one rod, etc.
Description
Technical field
The utility model belongs to support technology field, down-hole, mine, specifically is a kind of callable anchor pole that is used for the down-hole roof timbering.
Background technology
In the prior art, down-hole roof timbering anchor pole uses left hand thread steel pole body and resin anchoring agent usually, though anchored force is strong, can not recycle, and causes unnecessary waste.
Summary of the invention
The utility model has solved the recyclable problem of roof timbering anchor pole, and a kind of recoverable anchor rod of simple in structure, the roof timbering being convenient to reclaim is provided.
The utility model is to realize like this, the recoverable anchor rod that is used for roof timbering, including rock bolt head divides and shank portion, it is characterized in that the anchor pole head and the body of rod are with being threaded, the junction of the anchor pole head and the body of rod is set with polypropylene antistatic flame retardant plastics pipe, prevent that the body of rod is not quick detachable after being fixed by resin anchoring agent, influence the rate of recovery of anchor pole; The anchor pole head separates with the body of rod, has reached callable purpose.
Anchor pole head of the present utility model adopts the left hand thread steel to make, and can guarantee the anchored force and the elongation per unit length of anchor pole; The body of rod adopts reinforcing bar to make, and the body of rod of recovery also can be used as the side anchor bar and uses.
The utility model compared with prior art has convenient disassembly, is convenient to reclaim, and rate of recovery height reduces cost of investment, realizes advantages such as multi-use.
Description of drawings
Fig. 1 is the shape assumption diagram that is used for the recoverable anchor rod of roof timbering
Fig. 2 is the sectional view of the recoverable anchor rod of roof timbering
The specific embodiment
With reference to the accompanying drawings embodiment is further described, present embodiment is a kind of anchor pole that the lower roof plate supporting is advanced in the colliery that is used for, form by make the body of rod 2 that anchor pole head 1 and reinforcing bar make with the left hand thread steel, the anchor pole head and the body of rod be with being threaded, and anchor pole head 1 and the junction of the body of rod 2 are set with 30 centimeters polypropylene antistatic flame retardant plastics pipe 3, during use, anchor pole head and anchor curing compound are fixed, and during dismounting, at first plastic pipe are dismantled, the body of rod from screw thread, on back out and get final product.
Claims (2)
1, a kind of recoverable anchor rod that is used for roof timbering, including rock bolt head divides and shank portion, it is characterized in that the anchor pole head (1) and the body of rod (2) with being threaded, anchor pole head (1) is set with polypropylene antistatic flame retardant plastics pipe (3) with the junction of the body of rod (2).
2, the recoverable anchor rod that is used for roof timbering according to claim 1 is characterized in that anchor pole head (1) adopts the left hand thread steel to make, and the body of rod (2) adopts reinforcing bar to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268869 CN2565988Y (en) | 2002-08-13 | 2002-08-13 | Recoverable anchor rod for roof supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268869 CN2565988Y (en) | 2002-08-13 | 2002-08-13 | Recoverable anchor rod for roof supporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2565988Y true CN2565988Y (en) | 2003-08-13 |
Family
ID=33734221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268869 Expired - Fee Related CN2565988Y (en) | 2002-08-13 | 2002-08-13 | Recoverable anchor rod for roof supporting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2565988Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469541B (en) * | 2008-05-14 | 2011-02-09 | 烟台大学 | Recoverable anchor rod |
-
2002
- 2002-08-13 CN CN 02268869 patent/CN2565988Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469541B (en) * | 2008-05-14 | 2011-02-09 | 烟台大学 | Recoverable anchor rod |
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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 |