CN202280467U - Hollow grouting anchor rod - Google Patents
Hollow grouting anchor rod Download PDFInfo
- Publication number
- CN202280467U CN202280467U CN2011204114253U CN201120411425U CN202280467U CN 202280467 U CN202280467 U CN 202280467U CN 2011204114253 U CN2011204114253 U CN 2011204114253U CN 201120411425 U CN201120411425 U CN 201120411425U CN 202280467 U CN202280467 U CN 202280467U
- Authority
- CN
- China
- Prior art keywords
- grouting
- rod
- central tube
- hollow
- pipe
- 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 - Lifetime
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Abstract
The utility model relates to a hollow grouting anchor rod. A tray is sleeved on a rod body; a nut is spirally combined on a thread part at the rear part of the rod body; the rod body is formed by welding a casing pipe and a center pipe into a whole, wherein the casing pipe and the center pipe are hollow pipes; the center pipe is provided with a plurality of grouting ports which are communicated with a center hole of the center pipe; spiral wings are arranged on the outer circumference of the center pipe; the casing pipe is sleeved with a sealing sleeve; and the sealing sleeve is located at the front part of the tray. The hollow grouting anchor rod disclosed by the utility model is good in anchoring effect, safe and reliable in grouting, and capable of increasing roadway support quality effectively, the usage amount of the anchor rods can be reduced, and anchoring and grouting are integrated to achieve convenience in operation.
Description
Technical field
The utility model relates to a kind of hollow grouting anchor, is mainly used in mine laneway reinforcing and road, bridge foundation bank protection.
Background technology
Existing anchor pole is generally the solid body of rod, can not carry out grouting operation, and to be connected power little with bolthole, poor reliability.
Summary of the invention
The purpose of the utility model provides a kind of hollow grouting anchor, solves the technological deficiency of the inconvenient slip casting of original anchor pole.
The purpose of the utility model realizes as follows: this hollow grouting anchor, comprise the body of rod, pallet and nut, and tray sleeve is on the body of rod; Nut revolves knot on the threaded portion at body of rod rear portion, and the body of rod is welded as a whole by sleeve pipe and central tube and constitutes, and sleeve pipe and central tube are hollow section; Some grouting ports are set on the central tube; Grouting port communicates with the centre bore of central tube, is with sealing shroud on the sleeve pipe, and sealing shroud is in the pallet front portion.During use; Central tube is screwed in bolthole, and pre-load nut makes pallet compressing sealing shroud and bolthole sealing; Under high pressure mortar overflows from injected hole through body of rod tube chamber; Infiltrate in each rock seam, play bonding, sealing, reinforcement effect, thereby prevent the generation of accidents such as roadway deformation, permeable or landslide.
The central tube excircle is provided with the spiral wing, increases the adhesion with bolthole.
The utility model anchoring effect is good, and slip casting is safe and reliable, can effectively improve the roadway support quality, practices thrift the anchor pole use amount, and anchor is annotated the integrated convenient operation.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
With reference to Fig. 1, it comprises the body of rod, pallet 2 and nut 1, and pallet 2 is enclosed within on the body of rod; Nut 1 revolves knot on the threaded portion at body of rod rear portion, and the body of rod is welded as a whole by sleeve pipe 4 and central tube 5 and constitutes, and sleeve pipe 4 is a hollow section with central tube 5; Some grouting ports 7 are set on the central tube 5, and grouting port 7 communicates with the centre bore of central tube 5, and central tube 5 excircles are provided with spiral wing 6; Be with sealing shroud 3 on the sleeve pipe 4, sealing shroud 3 is in pallet 2 front portions.
Claims (2)
1. hollow grouting anchor; Comprise the body of rod, pallet and nut, tray sleeve is on the body of rod, and nut revolves knot on the threaded portion at body of rod rear portion; It is characterized in that: the body of rod is by sleeve pipe (4) and central tube (5) formation that is welded as a whole; Sleeve pipe (4) and central tube (5) are hollow section, and some grouting ports (7) are set on the central tube (5), and grouting port (7) communicates with the centre bore of central tube (5); Be with sealing shroud (3) on the sleeve pipe (4), sealing shroud (3) is in pallet (2) front portion.
2. hollow grouting anchor according to claim 1 is characterized in that: central tube (5) excircle is provided with spiral wing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204114253U CN202280467U (en) | 2011-10-26 | 2011-10-26 | Hollow grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204114253U CN202280467U (en) | 2011-10-26 | 2011-10-26 | Hollow grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280467U true CN202280467U (en) | 2012-06-20 |
Family
ID=46226640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204114253U Expired - Lifetime CN202280467U (en) | 2011-10-26 | 2011-10-26 | Hollow grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900447A (en) * | 2012-10-30 | 2013-01-30 | 中铁五局集团贵州工程有限公司 | Anchor rod used for reinforcing weak surrounding rock |
| CN114320412A (en) * | 2021-11-26 | 2022-04-12 | 淮北矿业股份有限公司 | Grouting anchor rod hole sealing tray |
-
2011
- 2011-10-26 CN CN2011204114253U patent/CN202280467U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900447A (en) * | 2012-10-30 | 2013-01-30 | 中铁五局集团贵州工程有限公司 | Anchor rod used for reinforcing weak surrounding rock |
| CN114320412A (en) * | 2021-11-26 | 2022-04-12 | 淮北矿业股份有限公司 | Grouting anchor rod hole sealing tray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |