Unloading pressure dispersing type anchor rod

Abstract

The utility model discloses an unloadable pressure dispersing type anchor rod, which relates to the technical field of anchor rods, and comprises an external insertion anchor rod, limiting grooves are formed in two corresponding sides of one end of the inner wall of the external insertion anchor rod, a connecting column is mounted on one side, close to the limiting grooves, in the external insertion anchor rod, and limiting blocks are mounted on two corresponding sides of the connecting column. The detachable pressure dispersing type anchor rod comprises a connecting column, a steel wire rope is embedded into the connecting column, a limiting groove is formed in the connecting column, a limiting block is arranged in the limiting groove, the limiting block is inserted into the limiting groove, a cement drill bit is installed on one side of the connecting column, and a clamping and fixing mechanism is arranged on the side, away from the cement drill bit, of the connecting column. The embedded steel wire rope can be fixed and does not move after reaching the preset position, the stability in the engineering use process is ensured, compared with an anchor rod used in the past, the embedded steel wire rope can be effectively prevented from shifting, and use is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to an unloadable pressure dispersion type anchor rod. Background Art

[0002] Anchor rods are the most basic component of tunnel support in modern coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock can support itself. Anchor rods are not only used in mines, but also in engineering technology to reinforce slopes, tunnels, and dam bodies. The main principle of its work is that the anchor rod is a tensile member that penetrates into the stratum. One end of it is connected to the engineering structure, and the other end is deep in the stratum. The whole anchor rod is divided into a free section and an anchoring section. The free section refers to the area where the tension at the anchor rod head is transmitted to the anchor body. Its function is to apply tension to the anchor rod. Prestressing The anchor section refers to the area where the cement slurry bonds the prestressed tendons to the soil layer. Its function is to increase the bonding friction between the anchor body and the soil layer, increase the bearing capacity of the anchor body, and transmit the tension of the free section to the deep soil. However, the anchor rods currently used are less stable during use, which can easily cause the embedded wire rope to shift, making it inconvenient to use. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides an unloadable pressure dispersion anchor rod, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: an unloadable pressure-dispersed anchor rod, including an externally inserted anchor rod, wherein limiting grooves are provided on both sides corresponding to one end of the inner wall of the externally inserted anchor rod, a connecting column is installed on the side of the internal part of the externally inserted anchor rod close to the limiting groove, limiting blocks are installed on both sides corresponding to the connecting column, the limiting blocks are inserted into the interior of the limiting groove, a cement drill bit is installed on one side of the connecting column, and a clamping and fixing mechanism is provided on the side of the connecting column away from the cement drill bit, internal clamping grooves are provided on both sides corresponding to the inner wall of the externally inserted anchor rod, an embedded steel wire rope is slidably connected to the interior of the externally inserted anchor rod, an anti-pull clamping structure is provided on the outer side of the embedded steel wire rope, and a connecting structure is provided at the end of the externally inserted anchor rod away from the limiting groove.

[0005] Preferably, the clamping and fixing mechanism includes an inner insertion groove and a clamping joint, the inner insertion groove is opened at the end of the connecting column away from the cement drill bit, the clamping joint is installed at the end of the embedded wire rope close to the cement drill bit, a limiting clamp ring is arranged inside the inner insertion groove, and the clamping joint is inserted into the interior of the inner insertion groove.

[0006] Preferably, the connecting structure includes a connecting sleeve, which is installed on the side of the external insertion anchor rod away from the limiting groove, an internal thread ring is provided inside the connecting sleeve, a connecting groove is opened inside the connecting sleeve, and an upper interface is installed on the side of the connecting sleeve close to the connecting groove.

[0007] Preferably, the anti-pull clamping mechanism comprises an outer fixing ring, which surrounds the outer side of the embedded steel wire rope, and two elastic clamps are arranged on one side of the outer fixing ring.

[0008] Preferably, a blocking baffle is sleeved on one end of the outer side of the external insertion anchor rod away from the limiting groove.

[0009] Preferably, the cross-section of the inner snap-fit ​​groove is a trapezoidal structure, and one end of the inner snap-fit ​​groove close to the limiting groove is a beveled edge.

[0010] Preferably, the embedded steel wire rope is made by winding and fixing four steel wire ropes.

[0011] The utility model provides an unloadable pressure dispersion anchor rod, which has the following beneficial effects:

[0012] 1. The unloadable pressure-dispersed anchor rod uses a clamping fixing structure between the connecting column and the embedded steel wire rope, so that the position of the embedded steel wire rope can be fixed and no longer moved after reaching the predetermined position, ensuring stability during engineering use. Compared with the anchor rods used in the past, it can effectively avoid the displacement of the embedded steel wire rope and is safer to use.

[0013] 2. The unloadable pressure-dispersing anchor rod, by using a dual-use connection structure, can more conveniently drive the external insertion anchor rod into the interior of the soil layer, and conveniently use the connection structure to inject concrete into the interior of the external insertion anchor rod. Compared with the currently used anchor rods, it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0017] Figure 4 For this utility model Figure 2 Enlarged view of point B in .

[0018] In the figure: 1. External insertion anchor rod; 2. Stop baffle; 3. Limiting groove; 4. Connecting column; 5. Limiting block; 6. Cement drill bit; 7. Internal insertion groove; 8. Limiting clamp ring; 9. Internal clamping groove; 10. Embedded wire rope; 11. Clamp joint; 12. External fixing ring; 13. Elastic card; 14. Connecting sleeve; 15. Internal threaded ring; 16. Connecting groove; 17. Upper interface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4The utility model provides a technical solution: an unloadable pressure dispersion anchor rod, including an external insertion anchor rod 1, an end of the external insertion anchor rod 1 away from the limiting groove 3 is sleeved with a blocking baffle 2, which can prevent the external insertion anchor rod 1 from being inserted into the soil layer as a whole, making it difficult to remove the external insertion anchor rod 1, and limiting grooves 3 are provided on both sides corresponding to one end of the inner wall of the external insertion anchor rod 1, and a connecting column 4 is installed on one side of the external insertion anchor rod 1 close to the limiting groove 3, and limiting blocks 5 are installed on both sides corresponding to the connecting column 4, and the limiting blocks 5 are inserted into the limiting groove 3. A cement drill bit 6 is installed on one side of the column 4, and a clamping fixing mechanism is provided on the side of the connecting column 4 away from the cement drill bit 6. The clamping fixing mechanism includes an inner insertion groove 7 and a clamping joint 11. The inner insertion groove 7 is arranged at the end of the connecting column 4 away from the cement drill bit 6, and the clamping joint 11 is installed at the end of the embedded wire rope 10 close to the cement drill bit 6. A limited clamp ring 8 is arranged inside the inner insertion groove 7, and the clamping joint 11 is inserted into the inner insertion groove 7 to facilitate connecting the connecting column 4 with the embedded wire rope 10. The corresponding two sides of the inner wall of the outer insertion anchor rod 1 are provided There is an inner card groove 9, the cross section of the inner card groove 9 is a trapezoidal structure, and the end of the inner card groove 9 close to the limit groove 3 is a bevel, so that when the outer inserted anchor rod 1 is pulled out, the outer fixing ring 12 will not interfere with it, and the inner sliding connection of the outer inserted anchor rod 1 is provided with an embedded steel wire rope 10, which is made of four strands of steel wire ropes wound and fixed, increasing the structural strength of the embedded steel wire rope 10, and an anti-pull card structure is provided on the outer side of the embedded steel wire rope 10, and the anti-pull card mechanism includes an outer fixing ring 12, and the outer fixing ring 12 surrounds the embedded steel wire rope 1 0, two elastic cards 13 are arranged on one side of the outer fixing ring 12, which can effectively prevent the embedded wire rope 10 from being displaced, and a connecting structure is arranged at the end of the outer insertion anchor rod 1 away from the limiting groove 3, and the connecting structure includes a connecting sleeve 14, and the connecting sleeve 14 is installed on the side of the outer insertion anchor rod 1 away from the limiting groove 3, and an internal thread ring 15 is arranged inside the connecting sleeve 14, and a connecting groove 16 is opened inside the connecting sleeve 14, and an upper interface 17 is installed on the side of the connecting sleeve 14 close to the connecting groove 16, which is convenient for connecting the pipe for injecting concrete.

[0021] In summary, when using the unloadable pressure-dispersed anchor rod, first insert the connecting column 4 into the interior of the outer insertion anchor rod 1, and make the limit block 5 located inside the limit groove 3, then the punching device can be connected to the connecting sleeve 14 using the internal threaded ring 15 in the connecting sleeve 14, and start to rotate the outer insertion anchor rod 1 and the cement drill bit 6, so that the outer insertion anchor rod 1 is inserted into the soil layer, and when it reaches the predetermined position, the embedded steel wire rope 10 is inserted into the interior of the outer insertion anchor rod 1, and the clamping joint 11 is used to insert it into the interior of the inner insertion groove 7, and the position of the embedded steel wire rope 10 is limited by the limit clamping ring 8 and the inner clamping groove 9 to avoid pulling out the embedded steel wire rope 10 again, and then the pipe for pouring concrete is connected to the upper interface 17, and the end of the connecting sleeve 14 away from the outer insertion anchor rod 1 is blocked, so that the concrete passes through the upper interface 17 and the connecting groove 16 and flows into the interior of the outer insertion anchor rod 1, and at the same time, the outer insertion anchor rod 1 is pulled outward to inject concrete into the interior of the hole.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An unloadable pressure dispersion anchor rod, comprising an external insertion anchor rod (1), characterized in that: Limiting grooves (3) are provided on both sides corresponding to one end of the inner wall of the external insertion anchor rod (1), a connecting column (4) is installed on one side of the internal wall of the external insertion anchor rod (1) close to the limiting groove (3), and limiting blocks (5) are installed on both sides corresponding to the connecting column (4); The limiting block (5) is inserted into the limiting groove (3), a cement drill bit (6) is installed on one side of the connecting column (4), and a clamping fixing mechanism is provided on the side of the connecting column (4) away from the cement drill bit (6); Internal snap-in grooves (9) are provided on the corresponding two sides of the inner wall of the external insertion anchor rod (1), an embedded steel wire rope (10) is slidably connected inside the external insertion anchor rod (1), an anti-pull snap-in structure is provided on the outer side of the embedded steel wire rope (10), and a connection structure is provided at one end of the external insertion anchor rod (1) away from the limiting groove (3).

2. The unloadable pressure dispersion anchor according to claim 1, characterized in that: The clamping and fixing mechanism comprises an inner insertion groove (7) and a clamping joint (11); the inner insertion groove (7) is provided at an end of the connecting column (4) away from the cement drill bit (6); the clamping joint (11) is installed at an end of the embedded steel wire rope (10) close to the cement drill bit (6); a limiting clamping ring (8) is provided inside the inner insertion groove (7); and the clamping joint (11) is inserted into the inner insertion groove (7).

3. The unloadable pressure dispersion anchor according to claim 1, characterized in that: The connection structure comprises a connection sleeve (14), the connection sleeve (14) being installed on a side of the externally inserted anchor rod (1) away from the limiting groove (3), an internal thread ring (15) being arranged inside the connection sleeve (14), a connection groove (16) being opened inside the connection sleeve (14), and an upper interface (17) being installed on a side of the connection sleeve (14) close to the connection groove (16).

4. The unloadable pressure dispersion anchor bolt according to claim 1, characterized in that: The anti-pull clamping mechanism comprises an outer fixing ring (12), the outer fixing ring (12) surrounds the outer side of the embedded steel wire rope (10), and two elastic clamps (13) are arranged on one side of the outer fixing ring (12).

5. The unloadable pressure dispersion anchor bolt according to claim 1, characterized in that: A blocking baffle (2) is sleeved on one end of the outer side of the external insertion anchor rod (1) away from the limiting groove (3).

6. The unloadable pressure dispersion anchor bolt according to claim 1, characterized in that: The cross section of the inner snap-fit ​​groove (9) is a trapezoidal structure, and one end of the inner snap-fit ​​groove (9) close to the limiting groove (3) is a beveled edge.

7. The unloadable pressure dispersion anchor according to claim 1, characterized in that: The embedded steel wire rope (10) is made by winding and fixing four steel wire ropes.

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