CN218206749U - Telescopic slip casting stock - Google Patents
Telescopic slip casting stock Download PDFInfo
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- CN218206749U CN218206749U CN202221694235.1U CN202221694235U CN218206749U CN 218206749 U CN218206749 U CN 218206749U CN 202221694235 U CN202221694235 U CN 202221694235U CN 218206749 U CN218206749 U CN 218206749U
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- anchor rod
- grouting
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- main
- flow channel
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Abstract
The utility model discloses a telescopic grouting anchor rod, which comprises a main anchor rod, a connecting sleeve and an auxiliary anchor rod, wherein the main anchor rod is of a double-layer cavity structure, an inner cavity in which the main anchor rod is arranged as a main grouting flow channel, and a cavity in the outer layer is arranged as an auxiliary grouting flow channel; the front end part of the main anchor rod is provided with a grouting head, the outer side of the grouting head is provided with a main grouting hole and an auxiliary grouting hole, the main grouting hole is communicated with the main grouting flow channel, and the auxiliary grouting hole is communicated with the auxiliary grouting flow channel; an auxiliary anchor rod is arranged at the rear end part of the main anchor rod through a connecting sleeve, so that the connecting sleeve and the auxiliary anchor rod are contracted in a cavity in which the auxiliary grouting flow channel is positioned; when the connecting sleeve and the auxiliary anchor rod are stretched out, the connecting sleeve and the auxiliary anchor rod are mutually clamped, and a grout outlet communicated with the outside is formed in the outer wall where the auxiliary anchor rod is located. The main anchor rod and the auxiliary anchor rod of the device can freely stretch out and draw back, the anchor rod can be shortened to one third of the target length in the shortest way, and construction and transportation in a narrow construction roadway are facilitated.
Description
Technical Field
The utility model belongs to the technical field of grouting equipment, concretely relates to telescopic slip casting stock.
Background
The grouting anchor rod is used as a product of tunnel engineering, slope treatment engineering and coal mine tunnel engineering, the rod body can adopt a hollow design, and a middle hole of the rod body is used as a drilling grouting channel, so that better rigidity and shear strength can be obtained.
In the grouting anchor rod, a rubber check ring is arranged on the inner wall of the grouting anchor rod to provide resistance for the withdrawal of a grouting guide pipe, so that a grouting hole is pressurized and grouted. Each layer of grouting holes are fully grouted under stepped pressurization and are fully combined with the surrounding soil body, the slurry dispersion area is increased, continuous bonding force is provided, and the later slippage and loosening of the anchor rod are prevented.
When the tunnel construction operation space is limited, the tunnel support needs the longer anchor rod length to be unfavorable for the anchor rod transportation and the operation degree of difficulty is great, influences the construction scheme. There is partial stock to accomplish to reduce the length of stock through flexible stock, nevertheless can not accomplish slip casting work and shorten length not big, and this will reduce the anchor power to the tunnel, is unfavorable for the safety of engineering.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a telescopic slip casting stock has solved the above-mentioned technical scheme who exists among the prior art.
The purpose of the utility model can be realized by the following technical scheme:
a telescopic grouting anchor rod comprises a main anchor rod, a connecting sleeve and an auxiliary anchor rod, wherein the main anchor rod is of a double-layer cavity structure, an inner cavity in which the main anchor rod is located is set as a main grouting flow channel, and a cavity in the outer layer is set as an auxiliary grouting flow channel;
the front end part of the main anchor rod is provided with a grouting head, the outer side of the grouting head is provided with a main grouting hole and an auxiliary grouting hole, the main grouting hole is communicated with the main grouting flow channel, and the auxiliary grouting hole is communicated with the auxiliary grouting flow channel;
an auxiliary anchor rod is arranged at the rear end part of the main anchor rod through a connecting sleeve, so that the connecting sleeve and the auxiliary anchor rod are contracted in a cavity in which an auxiliary grouting flow passage is arranged; when the connecting sleeve and the auxiliary anchor rod are stretched out, the connecting sleeve and the auxiliary anchor rod are mutually clamped, and a grout outlet communicated with the outside is formed in the outer wall where the auxiliary anchor rod is located.
Furthermore, the auxiliary grouting holes are arranged in two groups and are symmetrically arranged with the center of the main grouting flow channel.
Furthermore, the outer part of the auxiliary anchor rod is composed of a cylindrical structure and a conical structure, the cylindrical structure is sleeved in the auxiliary grouting flow channel of the main anchor rod, and the conical structure is located at the front end and extends out.
Furthermore, the rear end part of the auxiliary anchor rod is provided with an L-shaped bending structure, and the L-shaped bending structure slides in the front-back direction of the auxiliary grouting flow channel.
The utility model has the advantages that:
1. this device's main stock and vice stock originally between can freely stretch out and draw back, can reduce the stock to the third of target length in the shortest, convenient construction and transportation in narrow and small construction tunnel to can carry out slip casting work in order to improve the anchor degree to the tunnel, and the simple operation.
2. The connecting sleeve who adopts between the main stock of this device and the vice stock is connected, and one shot forming pours, the simple operation, and processing is convenient to fashioned stock common technical personnel all can use, need not extra training operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural view of the overall extended state of the embodiment of the present invention;
fig. 2 is a schematic structural diagram of the overall shrinkage state of the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a portion at position A according to an embodiment of the present invention;
fig. 4 is a schematic front structural diagram of an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment of the utility model provides a telescopic slip casting stock, including main stock 1, adapter sleeve 2, vice stock 3, main stock 1 presents double-deck cavity structures to the inner chamber that lies in main stock 1 place sets up to main slip casting runner 101, lies in outer cavity and sets up to vice slip casting runner 102.
As shown in fig. 4, a grouting head 11 is provided at the front end of the main anchor 1, a main grouting hole 111 and an auxiliary grouting hole 112 are provided at the outer side of the grouting head 11, and two sets of auxiliary grouting holes 112 are provided and are symmetrically provided with the center of the main grouting flow channel 101. The main injection hole 111 communicates with the main injection flow passage 101, and the sub injection hole 112 communicates with the sub injection flow passage 102.
The rear end part of the main anchor rod 1 is provided with an auxiliary anchor rod 3 through a connecting sleeve 2, so that the connecting sleeve 2 and the auxiliary anchor rod 3 are contracted in a cavity in which the auxiliary grouting flow passage 102 is positioned; when connecting sleeve 2 and vice stock 3 by stretched out, establish the block each other with overlapping each other, can realize that vice stock 3 stretches out the maximum length for main stock 1, the outer wall at vice stock 3 place is provided with the play thick liquid hole 301 with outside intercommunication. At this time, the outer part of the auxiliary anchor rod 3 is composed of a cylindrical structure and a conical structure, the cylindrical structure is sleeved in the auxiliary grouting flow channel 102 where the main anchor rod 1 is located, and the conical structure is located at the front end and extends out.
As shown in fig. 3, the rear end portion of the sub anchor 3 is provided with an L-shaped bent structure as needed, and the L-shaped bent structure is slid in the front-rear direction of the sub grouting flow passage 102.
When the anchor rod is used, the connecting sleeve 2 and the auxiliary anchor rod 3 which are sleeved with each other are firstly arranged in the auxiliary grouting flow channel 102 where the main anchor rod 1 is located, so that the anchor rod can be conveniently carried in a narrow roadway, and then when the anchor rod is required to be used, the main anchor rod 1 can transversely extend into the position of a fixed hole. Grouting liquid flows in from the auxiliary grouting flow channel 102 through the auxiliary grouting hole 112, under the condition that the grouting liquid is continuously injected, the L-shaped bending structure where the auxiliary anchor rod 3 is located is continuously pushed forwards until the connecting sleeve 2 and the auxiliary anchor rod 3 reach the maximum extending length, namely the grouting liquid in the auxiliary grouting flow channel 102 stops grouting, and the auxiliary grouting hole 112 is closed. In this case, after the grout is solidified and molded in the region of the sub-grout passage 102, the length of the sub-anchor 3 extending therefrom is ensured not to be deformed.
And then, injecting grouting liquid again from the position of the main grouting hole 111, so that the grouting liquid overflows from a grout outlet hole 301 at the front end part of the auxiliary anchor rod 3 after filling the main grouting flow channel 101, and the overflowing grouting liquid and the outer soil layer at the position can increase the anchoring to the soil.
This stock can freely stretch out and draw back, can reduce the stock to the third of target length in the shortest, convenient construction and transportation to can carry out the slip casting work in order to improve the anchor degree to the tunnel, and the simple operation, ordinary technical staff all can operate, need not extra training.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (4)
1. A telescopic grouting anchor rod is characterized by comprising a main anchor rod (1), a connecting sleeve (2) and an auxiliary anchor rod (3), wherein the main anchor rod (1) is of a double-layer cavity structure, an inner cavity in which the main anchor rod (1) is located is provided with a main grouting flow channel (101), and a cavity in the outer layer is provided with an auxiliary grouting flow channel (102);
the front end part of the main anchor rod (1) is provided with a grouting head (11), the outer side of the grouting head (11) is provided with a main grouting hole (111) and an auxiliary grouting hole (112), the main grouting hole (111) is communicated with the main grouting flow channel (101), and the auxiliary grouting hole (112) is communicated with the auxiliary grouting flow channel (102);
the rear end part of the main anchor rod (1) is provided with an auxiliary anchor rod (3) through a connecting sleeve (2), so that the connecting sleeve (2) and the auxiliary anchor rod (3) are contracted in a cavity in which an auxiliary grouting flow passage (102) is positioned; when the connecting sleeve (2) and the auxiliary anchor rod (3) are extended out, the connecting sleeve and the auxiliary anchor rod are mutually clamped, and a grout outlet (301) communicated with the outside is formed in the outer wall where the auxiliary anchor rod (3) is located.
2. The telescopic grouting bolt according to claim 1, characterized in that the secondary grouting holes (112) are arranged in two groups and symmetrically arranged with respect to the center of the main grouting flow channel (101).
3. The telescopic grouting anchor rod according to claim 1, characterized in that the outer part of the auxiliary anchor rod (3) is composed of a cylindrical structure and a conical structure, the cylindrical structure is sleeved in the auxiliary grouting flow channel (102) of the main anchor rod (1), and the conical structure is positioned at the front end and extends out.
4. The telescopic grouting anchor rod according to claim 1, wherein the rear end part where the auxiliary anchor rod (3) is located is provided with an L-shaped bent structure, and the L-shaped bent structure slides in the front-back direction of the auxiliary grouting flow channel (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221694235.1U CN218206749U (en) | 2022-07-01 | 2022-07-01 | Telescopic slip casting stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221694235.1U CN218206749U (en) | 2022-07-01 | 2022-07-01 | Telescopic slip casting stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218206749U true CN218206749U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221694235.1U Active CN218206749U (en) | 2022-07-01 | 2022-07-01 | Telescopic slip casting stock |
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| Country | Link |
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| CN (1) | CN218206749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291638A (en) * | 2023-04-11 | 2023-06-23 | 华能云南滇东能源有限责任公司 | Grouting device for preventing and controlling water in coal mine |
-
2022
- 2022-07-01 CN CN202221694235.1U patent/CN218206749U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291638A (en) * | 2023-04-11 | 2023-06-23 | 华能云南滇东能源有限责任公司 | Grouting device for preventing and controlling water in coal mine |
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