CN215977253U - Recoverable prestressed anchor - Google Patents
Recoverable prestressed anchor Download PDFInfo
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- CN215977253U CN215977253U CN202122327480.0U CN202122327480U CN215977253U CN 215977253 U CN215977253 U CN 215977253U CN 202122327480 U CN202122327480 U CN 202122327480U CN 215977253 U CN215977253 U CN 215977253U
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- anchor rod
- rotating
- main bodies
- lead screw
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Abstract
The utility model discloses a recyclable prestressed anchor rod, which comprises a drilling probe, wherein friction force can be reduced through the drilling probe, the drilling probe is arranged in a conical shape, the upper surface of the drilling probe is rotatably connected with three uniformly distributed arc-shaped anchor rod main bodies, the three arc-shaped anchor rod main bodies are arranged in a closed circular ring shape, hole expanding devices are arranged in the three arc-shaped anchor rod main bodies, the arc-shaped anchor rod main bodies can be conveniently taken out through flaring devices, each hole expanding device comprises a rotating adjusting lead screw, the rotating adjusting lead screw is rotatably connected with the central position of the upper surface of the drilling probe, the outer side positions of the rotating adjusting lead screws are in penetrating engagement and connection with lead screw nuts, and the inner walls of the three arc-shaped anchor rod main bodies are positioned below the lead screw nuts and are fixedly connected with rotating connecting blocks. The utility model can rapidly take out a large number of anchor rods on the construction site, thereby effectively improving the efficiency of taking out the anchor rods.
Description
Technical Field
The utility model relates to the technical field of anchor rods, in particular to a recyclable prestressed anchor rod.
Background
The anchor rod is the most basic component of roadway support in the contemporary coal mine, and the anchor rod reinforces the surrounding rocks of the roadway together to support the surrounding rocks per se. The anchor rod is not only used in mines, but also in engineering technology for reinforcing main bodies of slopes, tunnels and dams. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the anchor rod is used for applying prestress to the anchor rod.
In prior art the stock when practical with the position fit connection in the ground abundant, the stock takes out difficult inefficiency, is unfavorable for taking out fast of extensive stock.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the anchor rod is inconvenient to recover.
In order to solve the technical problems, the utility model adopts a technical scheme that: the recyclable prestressed anchor rod comprises a drilling probe, wherein friction force can be reduced through the drilling probe, the drilling probe is arranged in a conical shape, the upper surface of the drilling probe is rotatably connected with three uniformly distributed arc anchor rod main bodies, the three arc anchor rod main bodies are arranged in a closed circular ring shape, hole expanding devices are arranged in the three arc anchor rod main bodies, and the arc anchor rod main bodies can be conveniently taken out through the hole expanding devices;
the reaming device comprises a rotary adjusting lead screw, the rotary adjusting lead screw is rotatably connected with the center of the upper surface of the drilling probe, the outer side of the rotary adjusting lead screw is connected with a lead screw nut in a penetrating and meshing mode, and the inner wall of the arc-shaped anchor rod main body is fixedly connected with a rotary connecting block below the lead screw nut.
Preferably, the inner wall of the groove of the rotary connecting block is fixedly connected with a second rotating pin, the position of the second rotating pin at the position of the rotary connecting block is rotatably connected with a pushing steel rod, and the arc-shaped anchor rod main body can be jacked open through the pushing steel rod.
Preferably, three first rotating cavities which are uniformly distributed are formed in the outer wall of the lead screw nut, a first rotating pin is fixedly connected to the middle of the inner wall of the first rotating cavity, and the first rotating cavities and the first rotating pin conveniently achieve rotation of the pushing steel rod.
Preferably, one end, far away from the rotating connecting block, of the steel pushing rod is connected with the first rotating pin at the corresponding position in a penetrating and rotating mode.
Preferably, the drilling probe, the arc-shaped anchor rod main body, the rotary adjusting screw rod, the screw nut, the rotary connecting block and the pushing steel rod are all made of manganese steel, and the manganese steel is high in strength and not prone to deformation.
Preferably, the center of the upper surface of the rotation adjusting screw rod is provided with an inner hexagonal groove with an inner hexagonal, and the rotation adjusting screw rod is conveniently rotated by an inner hexagonal wrench.
Preferably, the bottom of the outer wall of the three arc-shaped anchor rod main bodies is provided with threads.
The utility model has the following beneficial effects:
according to the utility model, the three independently arranged arc-shaped anchor rod main bodies are arranged, when the arc-shaped anchor rod main bodies need to be taken out after use, the inner hexagonal wrench is used for rotating the rotation adjusting screw rod, so that the rotation adjusting screw rod rotates to enable the screw rod nut to move downwards, the pushing steel rod is enabled to push the arc-shaped anchor rod main bodies open, the holes in the arc-shaped anchor rod positions are enlarged, and then the rotation adjusting screw rod is adjusted to enable the arc-shaped anchor rod main bodies to be closed, so that the arc-shaped anchor rod main bodies can be taken out, the arc-shaped anchor rod main bodies can be taken out quickly and efficiently, and the anchor rods in a construction site can be taken out conveniently in a large scale.
Drawings
FIG. 1 is a front view of a recoverable prestressed anchor according to the present invention;
FIG. 2 is a cross-sectional view taken at A of FIG. 1;
FIG. 3 is a top view of a recoverable prestressed anchor according to the present invention;
FIG. 4 is a schematic view of a rotatable connecting block for a recoverable prestressed anchor according to the present invention.
In the figure: 1. an arc anchor rod main body; 2. drilling a probe; 3. rotating the adjusting screw rod; 4. rotating the connecting block; 5. pushing the steel rod; 6. a first rotation pin; 7. a lead screw nut; 8. a first rotation chamber; 9. an inner hexagonal groove; 10. a second rotation pin.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 and 2, the recoverable prestressed anchor rod comprises a drilling probe 2, wherein the drilling probe 2 is arranged in a conical shape, the upper surface of the drilling probe 2 is rotatably connected with three arc-shaped anchor rod bodies 1 which are uniformly distributed, the three arc-shaped anchor rod bodies 1 are arranged in a closed circular ring shape, a hole expanding device is arranged in each arc-shaped anchor rod body 1, and threads are arranged at the bottom of the outer wall of each arc-shaped anchor rod body 1.
The reaming device is including rotating adjusting lead screw 3, rotates adjusting lead screw 3 and bores into 2 upper surface central points of probe and put to rotate and be connected, rotates adjusting lead screw 3 outside position and runs through the meshing and be connected with screw nut 7, and screw nut 7 outer wall position sets up three evenly distributed's first rotation chamber 8.
First 8 inner walls of rotation chamber middle part position fixedly connected with first rotation round pin 6, 1 inner wall of three arc stock main part is located screw nut 7 below position fixedly connected with and rotates connecting block 4, bores into probe 2, arc stock main part 1, rotates adjusting screw 3, screw nut 7, rotates connecting block 4 and propelling movement steel pole 5 and is the manganese steel material.
As shown in fig. 3, an inner hexagonal groove 9 with an inner hexagonal shape is formed in the center of the upper surface of the rotation adjusting screw 3.
As shown in fig. 4, the inner wall of the groove of the rotary connecting block 4 is fixedly connected with a second rotating pin 10, the second rotating pin 10 at the position of the rotary connecting block 4 is rotatably connected with a pushing steel rod 5, and one end of the pushing steel rod 5, which is far away from the rotary connecting block 4, is rotatably connected with a first rotating pin 6 at the corresponding position.
When the arc-shaped anchor rod 1 is used, the three independently arranged arc-shaped anchor rod main bodies 1 are arranged, when the arc-shaped anchor rod 1 needs to be taken out after the use is finished, the rotating adjusting screw rod 3 is rotated through the inner hexagonal wrench, the rotating adjusting screw rod 3 is rotated, the screw rod nut 7 moves downwards, the pushing steel rod 5 pushes the arc-shaped anchor rod main bodies 1 open, the holes in the positions of the arc-shaped anchor rods 1 are enlarged, and then the rotating adjusting screw rod 3 is adjusted, so that the arc-shaped anchor rod main bodies 1 are closed, and the arc-shaped anchor rod can be taken out.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A recoverable prestressed anchor, comprising a drilling probe (2), characterized in that: the drilling probe (2) is arranged in a conical shape, the upper surface of the drilling probe (2) is rotatably connected with three uniformly distributed arc-shaped anchor rod main bodies (1), the three arc-shaped anchor rod main bodies (1) are arranged in a closed circular ring shape, and hole expanding devices are arranged in the three arc-shaped anchor rod main bodies (1);
the reaming device is including rotating regulation lead screw (3), rotate regulation lead screw (3) and bore into probe (2) upper surface central point and put to rotate and be connected, it is connected with screw nut (7) to rotate regulation lead screw (3) outside position through meshing, three arc stock main part (1) inner wall is located screw nut (7) below position fixedly connected with and rotates connecting block (4).
2. The recoverable prestressed anchor of claim 1, wherein: the inner wall of the groove of the rotating connecting block (4) is fixedly connected with a second rotating pin (10), and the position of the second rotating pin (10) at the position of the rotating connecting block (4) is rotatably connected with a steel pushing rod (5).
3. The recoverable prestressed anchor of claim 1, wherein: three first rotating cavities (8) which are uniformly distributed are formed in the outer wall of the screw nut (7), and first rotating pins (6) are fixedly connected to the middle portions of the inner walls of the first rotating cavities (8).
4. The recoverable prestressed anchor of claim 2, wherein: one end, far away from the rotating connecting block (4), of the pushing steel rod (5) is connected with a first rotating pin (6) in a corresponding position in a penetrating and rotating mode.
5. The recoverable prestressed anchor of claim 1, wherein: the drilling probe (2), the arc-shaped anchor rod main body (1), the rotary adjusting lead screw (3), the lead screw nut (7), the rotary connecting block (4) and the push steel rod (5) are all made of manganese steel materials.
6. The recoverable prestressed anchor of claim 1, wherein: an inner hexagonal groove (9) with an inner hexagonal shape is formed in the center of the upper surface of the rotation adjusting screw rod (3).
7. The recoverable prestressed anchor of claim 1, wherein: the bottom of the outer wall of the three arc-shaped anchor rod main bodies (1) is provided with threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122327480.0U CN215977253U (en) | 2021-09-26 | 2021-09-26 | Recoverable prestressed anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122327480.0U CN215977253U (en) | 2021-09-26 | 2021-09-26 | Recoverable prestressed anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215977253U true CN215977253U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122327480.0U Active CN215977253U (en) | 2021-09-26 | 2021-09-26 | Recoverable prestressed anchor |
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|---|---|
| CN (1) | CN215977253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118498392A (en) * | 2024-07-17 | 2024-08-16 | 中建八局第四建设有限公司 | Foundation pit fixing structure for supporting pile body |
-
2021
- 2021-09-26 CN CN202122327480.0U patent/CN215977253U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118498392A (en) * | 2024-07-17 | 2024-08-16 | 中建八局第四建设有限公司 | Foundation pit fixing structure for supporting pile body |
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