CN215256270U - Grouting anchor rod - Google Patents
Grouting anchor rod Download PDFInfo
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- CN215256270U CN215256270U CN202121860003.4U CN202121860003U CN215256270U CN 215256270 U CN215256270 U CN 215256270U CN 202121860003 U CN202121860003 U CN 202121860003U CN 215256270 U CN215256270 U CN 215256270U
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- lantern ring
- anchor rod
- rod
- stock
- thread
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Abstract
The utility model relates to the field of civil engineering construction, in particular to a grouting anchor rod, which comprises an anchor rod and a lantern ring sleeved outside the anchor rod, wherein the end of the anchor rod, which is close to the rod tip, is uniformly provided with a through hole, the other end of the anchor rod is provided with a grouting hole, and the outer peripheral surface of the rod body of the anchor rod is provided with at least two groups of external threads along the axis direction; the lantern ring inner wall be equipped with the internal thread that external screw thread fit connects, lantern ring outer peripheral face is equipped with the branch around lantern ring axis array, and the slip casting is closely knit, can prevent that the thick liquid from flowing between drilling and the stock lateral wall, and lantern ring internal thread all adopts double thread structure with the external screw thread of stock, therefore the installation rate is fast, sets up in the branch around the lantern ring outer peripheral face, can with stock and the inside inseparable fixed of drilling, this practical structure is simple, and the manufacturing is convenient low in cost, the stock can separately produce the transportation storage with the lantern ring.
Description
Technical Field
The utility model relates to a civil engineering field specifically indicates a slip casting stock.
Background
Broken rocks existing in a roadway top plate and a side wall and broken rock surfaces and cracks which are difficult to support during crack development exist in an underground roadway of a coal mine. The problem of broken rock and structural cracks which are difficult to support during the development of broken rock and structural cracks existing in a top plate and a side wall is solved without a good method for maintaining the tunnel in the prior art. Only a method combining external anchorage cable fixing and guniting is adopted, but the method still exists after the treatment of the broken rocks in the top plate and the side wall of the roadway and broken rock surfaces and cracks which are difficult to support during the development of structural cracks, and the pressure is increased along with the increase of time, so that the roadway is easy to deform seriously, and the collapse accident can occur.
In order to solve the problems of broken rock surfaces and cracks which are difficult to support due to the development of broken rocks and structural cracks in a roadway top plate and a side wall, drilling holes in the roadway top plate and the side wall, installing a guide pipe in the drilled holes, plugging the drilled holes by using a plugging sleeve, finally injecting cement slurry by using a pneumatic grouting pump, enabling the cement slurry to overflow from a slurry overflow hole, filling the cement slurry into the broken rock surfaces and cracks which are difficult to support due to the development of the broken rocks and the structural cracks in the roadway top plate and the side wall under the continuous pressurization of the pneumatic grouting pump, and plugging water burst and cementing the rock, improving the mechanical property of surrounding rocks, improving the integral strength of rock masses, changing the supporting state of the surrounding rocks, and reducing the deformation of the roadway and the occurrence rate of collapse accidents within the range of the central diameter of 2 m.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, provide a slip casting stock.
In order to solve the technical problem, the technical scheme provided by the utility model is a grouting anchor rod, which comprises an anchor rod and a lantern ring sleeved outside the anchor rod, wherein the end of the anchor rod, which is close to the rod tip, is uniformly provided with through holes, the other end of the anchor rod is provided with a grouting hole, and the outer peripheral surface of the rod body of the anchor rod is provided with at least two groups of external threads along the axis direction;
the lantern ring inner wall be equipped with the internal thread that external screw thread cooperation is connected, lantern ring outer peripheral face is equipped with around lantern ring axis array's branch.
As an improvement, the supporting rod is of a bent structure, and the end part of the free end of the supporting rod points to one side of the grouting hole.
As an improvement, the external thread and the internal thread are both of a double-thread structure.
Compared with the prior art, the utility model the advantage lie in:
the slip casting is closely knit, can prevent that the thick liquid from flowing between drilling and the stock lateral wall, and the external screw thread of lantern ring internal thread and stock all adopts double thread structure, and consequently the installation rate is fast, sets up in the branch of encircleing the ring outer peripheral face, can be with stock and the inside inseparable fixed of drilling, this practical structure is simple, and convenient manufacturing cost is low for production, and the stock can part production transportation storage with the lantern ring.
Drawings
FIG. 1 is a schematic view of a bolt and collar connection;
FIG. 2 is a schematic view of a bolt construction;
FIG. 3 is a schematic view of a collar construction;
as shown in the figure: 1. anchor rod, 2, slip casting hole, 3, through-hole, 4, external screw thread, 5, lantern ring, 6, branch, 7, internal thread.
Detailed Description
The following will explain the grouting anchor rod of the present invention in further detail with reference to the attached drawings.
With reference to the attached drawings 1-3, the grouting anchor rod comprises an anchor rod 1 and a lantern ring 5 sleeved outside the anchor rod 1, wherein through holes 3 are uniformly formed in one end, close to a rod tip, of the anchor rod 1, a grouting hole 2 is formed in the other end of the anchor rod 1, and at least two groups of external threads 4 are formed in the outer circumferential surface of a rod body of the anchor rod 1 along the axis direction;
the inner wall of the lantern ring 5 is provided with an internal thread 7 which is matched and connected with the external thread 4, and the peripheral surface of the lantern ring 5 is provided with struts 6 arrayed around the axis of the lantern ring 5.
As the preferred embodiment of the embodiment, the strut 6 is in a bent structure, and the free end of the strut 6 points to one side of the grouting hole 2.
In the preferred embodiment of the present invention, the external thread 4 and the internal thread 7 are both provided as a double-start thread structure.
The utility model discloses when concrete implementation, locate the outside lantern ring of stock including stock and cover, the stock is close to pole point one end and evenly is equipped with the through-hole, the stock other end is equipped with the slip casting hole, stock body of rod outer peripheral face is equipped with along the axis direction and is no less than two sets of external screw threads, lantern ring inner wall be equipped with the internal thread that external screw-thread fit connects, lantern ring outer peripheral face is equipped with the branch around lantern ring axis array, during the installation use, installs the lantern ring in the stock outer peripheral face in proper order, then inside inserting the drilling with the stock, through slip casting hole to the inside slip casting of stock, cement mortar flows out and fills the regional of stock outer wall and drilling inner wall in the through-hole
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (3)
1. A slip casting stock which characterized in that: the anchor rod comprises an anchor rod (1) and a lantern ring (5) sleeved outside the anchor rod (1), wherein through holes (3) are uniformly formed in one end, close to a rod tip, of the anchor rod (1), the other end of the anchor rod (1) is provided with a grouting hole (2), and at least two groups of external threads (4) are arranged on the outer circumferential surface of a rod body of the anchor rod (1) along the axis direction;
the lantern ring (5) inner wall be equipped with internal thread (7) that external screw thread (4) cooperation is connected, lantern ring (5) outer peripheral face is equipped with branch (6) around lantern ring (5) axis array.
2. A grouted anchor according to claim 1, wherein: the supporting rod (6) is of a bent structure, and the end part of the free end of the supporting rod (6) points to one side of the grouting hole (2).
3. A grouted anchor according to claim 1, wherein: the external thread (4) and the internal thread (7) are both of a double-thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121860003.4U CN215256270U (en) | 2021-08-10 | 2021-08-10 | Grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121860003.4U CN215256270U (en) | 2021-08-10 | 2021-08-10 | Grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215256270U true CN215256270U (en) | 2021-12-21 |
Family
ID=79497313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121860003.4U Active CN215256270U (en) | 2021-08-10 | 2021-08-10 | Grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215256270U (en) |
-
2021
- 2021-08-10 CN CN202121860003.4U patent/CN215256270U/en active Active
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