Mining grouting anchor cable

Abstract

The utility model relates to the technical field of mining anchor cables, and discloses a mining grouting anchor cable which comprises a protective sleeve, a conical head is arranged on the left side of the interior of the protective sleeve, a plurality of anchor rods are fixedly connected to the right side of the conical head, and two positioning plates are fixedly connected to the outer walls of the anchor rods. And the same grouting pipe penetrates through every two adjacent positioning plates, a threaded groove is formed in the outer wall of the protective sleeve, the outer wall of the threaded groove is in threaded connection with a threaded pipe, the right side of the interior of the threaded pipe is in threaded connection with a reverse threaded sleeve, and the right side of the reverse threaded sleeve is fixedly connected with a mounting plate. According to the anchor cable, the threaded pipe is rotated, the threaded pipe can move leftwards along the threaded groove under threaded transmission, the reverse threaded sleeve is connected with the right side of the interior of the threaded pipe and is driven to move towards the left side of the interior of the threaded pipe, the mounting plate moves together, the expansion bolt is rotated, the bolt is embedded into a rock mass, and therefore the maintenance efficiency of the whole anchor cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine anchor cable, especially to a mine grouting anchor cable. BACKGROUND

[0002] The mine grouting anchor cable is a device for supporting mine roadway and stope, which realizes the reinforcement and stability of surrounding rock by injecting grout into the drill hole and using the tension of the anchor cable, and is composed of an anchor cable body, a grouting pipe, a grout stopper, a tray and a lock part, the anchor cable body adopts high-strength steel wire or steel wire rope to provide strong tension, the grouting pipe is used to deliver grout into the drill hole, the grout stopper prevents grout leakage during grouting, and the tray and the lock part support and fix the anchor cable respectively.

[0003] Through the search, the patent of China with the patent number CN219299341U discloses a mine grouting anchor cable bundle in the technical field of mine support, which comprises an anchor cable penetrating assembly, and a bulge sleeve assembly is arranged on the anchor cable penetrating assembly; the utility model extrudes the conical bulge sleeve by the hemispherical anchor pad, so that the outer wall surface of the conical bulge sleeve is tightly fixed with the inner wall of the drill hole; the conical outer threaded sleeve is rotated to enter the cylindrical bulge sleeve, so that the cylindrical bulge sleeve is inflated and tightly fixed with the inner wall of the drill hole, thereby avoiding the sliding of the anchor cable bundle from the drill hole; the anchor cable bundle is penetrated in the anchor cable penetrating assembly, which facilitates the overall rapid installation; the anchor cable penetrating assembly is fixed in the drill hole by the bulge sleeve assembly, so that the anchor cable bundle can be pre-tensioned before grouting, and the roadway can be better supported after grouting tensioning; however, the installation of the conical bulge sleeve and the pad requires a certain space and operation condition in actual use, and in narrow roadway or complex construction environment, the installation difficulty and workload are increased, the conical bulge sleeve and the pad need to be checked, repaired or replaced, which is more troublesome and affects the construction efficiency and engineering progress. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a mine grouting anchor cable, which aims at improving the problems in the prior art that the conical bulge sleeve and the pad need to be checked, repaired or replaced in narrow roadway or complex construction environment, which is more troublesome and affects the construction efficiency and engineering progress.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mining grouting anchor cable includes a protective sleeve. A cone-shaped head is provided on the left side of the inner surface of the protective sleeve. Multiple anchor rods are fixedly connected to the right side of the cone-shaped head. Two positioning plates are fixedly connected to the outer walls of each of the multiple anchor rods. A grouting pipe passes through adjacent positioning plates. A threaded groove is formed on the outer wall of the protective sleeve. A threaded pipe is threadedly connected to the outer wall of the threaded groove. Multiple anti-slip pipes are fixed to the outer wall of the threaded pipe. A reverse threaded sleeve is threadedly connected to the right side of the threaded sleeve. An installation plate is fixedly connected to the right side of the reverse threaded sleeve. Expansion bolts are provided at the four corners on the right side of the installation plate. A positioning mechanism is provided on the outer wall of the cone-shaped head to prevent rotation of the cone-shaped head.

[0006] Furthermore, the positioning mechanism includes two springs, which are fixedly connected to the front and rear sides of the outer wall of the cone head. The front and rear sides of the inner side of the protective sleeve are provided with guide grooves. The front and rear ends of the left side of the inner side of the protective sleeve are provided with round holes. The opposite sides of the two springs are fixedly connected with a locking plate. The opposite sides of the two locking plates are fixedly connected with a limit post.

[0007] Furthermore, the outer wall of the protective sleeve has slurry outlets at both the upper and lower ends on the right side, and nuts are threaded onto the right side of each of the expansion bolts.

[0008] Furthermore, a fixing plate is fixedly connected to the right side of the mounting plate, and two diagonal braces are fixedly connected to the bottom of the fixing plate.

[0009] Furthermore, a fixing post is fixedly connected to the top of the fixing plate, and a fixing ring is fixedly connected to the top of the fixing post.

[0010] Furthermore, the diameters of both of the card plates are smaller than the guide groove, and the diameters of both of the card plates are smaller than the circular hole.

[0011] Furthermore, the interiors of the two positioning plates are equidistantly fixed to the outer wall of the anchor rod, and the diameter of the cone head is smaller than the diameter of the protective sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, rotating the threaded tube engages with the threaded groove on the outer wall of the protective sleeve. Under the threaded drive, the threaded tube moves to the left along the threaded groove. The reverse threaded sleeve is connected to the right side inside the threaded tube and is carried to the left side inside the threaded tube. The mounting plate connected to the reverse threaded sleeve moves together. Rotating the nut on the expansion bolt causes the bolt to embed into the rock mass, thereby improving the efficiency of the entire anchor cable maintenance.

[0014] 2. The utility model discloses a protection sleeve, and the positioning mechanism is arranged in the protection sleeve, the positioning mechanism comprises the guide groove, the round hole, the spring, the clamping plate and the limiting column, the clamping plate is arranged in the protection sleeve, the spring is arranged in the protection sleeve, the spring is connected with the clamping plate, the limiting column is arranged on the clamping plate, the clamping plate is inserted into the round hole, the spring is compressed, and the clamping plate is guided to move inwards in the guide groove, thereby realizing the function of limiting the rotation of the taper head. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of a mine grouting anchor cable is provided for the utility model;

[0016] Figure 2 A front view of a mine grouting anchor cable is provided for the utility model;

[0017] Figure 3 A right view of a mine grouting anchor cable is provided for the utility model;

[0018] Figure 4 A split view of a reverse thread sleeve of a mine grouting anchor cable is provided for the utility model;

[0019] Figure 5 A split view of a spring of a mine grouting anchor cable is provided for the utility model.

[0020] LEGEND:

[0021] 1, protection sleeve, 2, positioning mechanism, 201, guide groove, 202, round hole, 203, spring, 204, clamping plate, 205, limiting column, 3, taper head, 4, anchor rod, 5, positioning plate, 6, grouting pipe, 7, thread groove, 8, threaded pipe, 9, reverse thread sleeve, 10, mounting plate, 11, expansion bolt, 12, antiskid pipe, 13, grout outlet, 14, nut, 15, fixed plate, 16, inclined strut, 17, fixed column, 18, fixed ring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] REFERENCE Figure 1 and Figure 4The utility model provides an embodiment: a mine grouting anchor cable, including the protection cover 1 for protecting internal structure, the inside left side of protection cover 1 is provided with the taper head 3, the right side fixedly connected with a plurality of anchor rods 4 of taper head 3, the outer wall of a plurality of anchor rods 4 all fixedly connected with two locating plates 5, for fixing a plurality of anchor rods 4, the same grouting pipe 6 is penetrated between the adjacent of two locating plates 5, for grouting to the inside of protection cover 1, the outer wall of protection cover 1 is provided with the thread groove 7, the outer wall screw thread connection of thread groove 7 has the threaded tube 8, the inside right side screw thread connection of threaded tube 8 has reverse thread sleeve 9, rotate threaded tube 8, threaded tube 8 will move to the left side of thread groove 7, drive reverse thread sleeve 9 to the inside left side of threaded tube 8 and move, the right side fixedly connected with the mounting plate 10 of reverse thread sleeve 9, when reverse thread sleeve 9 moves to the left, drive mounting plate 10 to move, the right side four corner of mounting plate 10 all is provided with expansion bolt 11, can quickly install mounting plate 10, the outer wall of taper head 3 is provided with positioning mechanism 2, and positioning mechanism 2 is used to prevent the rotation of taper head 3;

[0024] Specifically, the protection cover 1 plays a key protection role, can effectively protect the internal structure, on the inside left side of the protection cover 1, the taper head 3 is arranged, the taper head 3 can not only assist the anchor cable to drill into the rock mass during installation, but also can disperse part of the pressure and reduce the impact on the internal structure, the right side of the taper head 3 is connected with a plurality of anchor rods 4, the anchor rod 4 is an important component to ensure the overall stability of the anchor cable, in order to further fix the plurality of anchor rods 4, two locating plates 5 are fixedly installed on the outer wall of each anchor rod 4, the same grouting pipe 6 is penetrated between the adjacent of the two locating plates 5, the grouting pipe 6 can grout into the inside of the protection cover 1, after the grout is injected, the gaps of the surrounding rock mass can be filled, the bonding force between the rock mass and the anchor cable is enhanced, so that the supporting effect is greatly improved, the outer wall of the protection cover 1 is provided with the thread groove 7, the thread groove 7 is screw connected with the threaded tube 8, and the reverse thread sleeve 9 is screw connected on the inside right side of the threaded tube 8, when the threaded tube 8 is rotated, due to the thread effect, the threaded tube 8 will move to the left side along the thread groove 7, and then drive the reverse thread sleeve 9 to move to the inside left side of the threaded tube 8, the right side of the reverse thread sleeve 9 is fixedly connected with the mounting plate 10, so when the reverse thread sleeve 9 moves to the left, the mounting plate 10 also moves, the expansion bolt 11 is arranged at the right side four corners of the mounting plate 10, by using this structure, the mounting plate 10 can be quickly and conveniently installed, the efficiency of the anchor cable installation is greatly improved, and convenience is provided for the mine construction.

[0025] Reference Figure 4 And Figure 5The positioning mechanism 2 comprises two springs 203 fixedly connected between the adjacent sides of the outer wall of the taper head 3, the inner front and back sides of the protective sleeve 1 are provided with guide grooves 201, the inner left side of the protective sleeve 1 is provided with circular holes 202 at the front and back ends, the sides away from each other of the two springs 203 are fixedly connected with clamping plates 204, the sides away from each other of the two clamping plates 204 are fixedly connected with limiting columns 205, the taper head 3 is placed in the inner part of the protective sleeve 1, the clamping plate 204 is pressed to move inward along the guide groove 201, when the clamping plate 204 is aligned with the circular hole 202, the spring 203 restores elasticity to make the clamping plate 204 enter the circular hole 202, and the limiting column 205 is clamped in the circular hole 202 to prevent the taper head 3 from rotating;

[0026] Specifically, when the taper head 3 is placed in the inner part of the protective sleeve 1, the clamping plate 204 is pressed by the inner wall of the protective sleeve 1 to compress the spring 203, in this process, the clamping plate 204 moves stably inward along the guide groove 201, when the clamping plate 204 moves to the position aligned with the circular hole 202, the spring 203 quickly restores elastic deformation to push the clamping plate 204 into the circular hole 202, at this time, the limiting column 205 fixedly connected to the side away from each other of the clamping plate 204 is clamped in the circular hole 202, thereby effectively preventing the taper head 3 from rotating in the protective sleeve 1, and ensuring the stability of the anchor structure.

[0027] With reference to Figure 1 , Figure 2 and Figure 3 , the outer wall of the threaded pipe 8 is fixedly connected with a plurality of anti-skid pipes 12, the plurality of anti-skid pipes 12 are designed to be smooth, increasing the friction with the hand to facilitate the rotation of the threaded pipe 8, the outer wall of the protective sleeve 1 is provided with grout outlets 13 at the upper and lower ends of the right side, for grouting, so that the protective sleeve 1 is fixed to the wall, the right side of the plurality of expansion bolts 11 is threadedly connected with nuts 14, facilitating the rotation of the expansion bolts 11, the right side of the mounting plate 10 is fixedly connected with a fixed plate 15, the bottom of the fixed plate 15 is fixedly connected with two inclined struts 16 for fixing the position of the grouting pipe 6.

[0028] Specifically, the outer wall of the threaded pipe 8 is fixed with the anti-skid pipe 12, which can significantly increase the friction with the hand, making it easier for the construction personnel to rotate the threaded pipe 8, the outer wall of the protective sleeve 1 is provided with grout outlets 13 at the upper and lower ends of the right side, grout flows out from here during grouting, which can firmly fix the protective sleeve 1 to the wall, the right side of the plurality of expansion bolts 11 is threadedly connected with nuts 14, facilitating the rotation of the expansion bolts 11, and the bottom of the fixed plate 15 fixed to the right side of the mounting plate 10 is also provided with two inclined struts 16 for accurately fixing the position of the grouting pipe 6.

[0029] With reference to Figure 2 , Figure 4 andFigure 5 The top of the fixed plate 15 is fixedly connected with a fixed column 17, the top of the fixed column 17 is fixedly connected with a fixed ring 18, which is used for fixing the position of the grouting pipe 6, the diameters of the two clamping plates 204 are smaller than the guide groove 201, the diameters of the two clamping plates 204 are smaller than the circular hole 202, the interiors of the two positioning plates 5 are fixedly connected with the outer wall of the anchor rod 4 at equal intervals, and the diameter of the tapered head 3 is smaller than the diameter of the protective sleeve 1.

[0030] Specifically, the fixed plate 15 is connected with the fixed column 17 at the top, and the fixed ring 18 at the top end further stabilizes the position of the grouting pipe 6, ensuring accurate grouting operation. The diameters of the clamping plates 204 are smaller than the guide groove 201 and the circular hole 202, which can smoothly move in the guide groove 201 and be embedded in the circular hole 202 to achieve limiting. The positioning plates 5 are distributed at equal intervals on the outer wall of the anchor rod 4 to ensure structural stability. The diameter of the tapered head 3 is smaller than the protective sleeve 1, which facilitates installation and subsequent operation. The cooperation of various components ensures the normal function of the anchor cable.

[0031] Working principle: In the initial installation stage, the special design of the tapered head 3 allows it to easily drill into the rock mass by virtue of its sharp shape when an external force is applied. In this process, the tapered head 3 disperses the pressure during drilling, effectively reducing the impact on the internal structure of the protective sleeve 1 and ensuring the integrity of the internal components. The tapered head 3 with multiple anchor rods 4 is placed into the protective sleeve 1, and the operator injects grout into the interior of the protective sleeve 1 through the grouting pipe 6. Due to the positioning plates 5, the grouting pipe 6 is stabilized between the anchor rods 4, allowing the grout to be accurately injected. The injected grout fills the gaps in the surrounding rock mass. Over time, the grout solidifies, greatly enhancing the bonding force between the rock mass and the anchor cable, thereby significantly improving the overall support effect. Rotating the threaded pipe 8, as the threaded pipe 8 is threadedly connected with the threaded groove 7 on the outer wall of the protective sleeve 1, the threaded pipe 8 moves to the left under the transmission action of the threads. Since the reverse threaded sleeve 9 is threadedly connected with the right side of the interior of the threaded pipe 8, the movement of the threaded pipe 8 drives the reverse threaded sleeve 9 to move to the left inside the threaded pipe 8, thereby moving the mounting plate 10 fixedly connected with the right side of the reverse threaded sleeve 9. The expansion bolts 11 arranged at the four corners on the right side of the mounting plate 10 are tightly embedded in the rock mass by rotating the nut 14 after the mounting plate 10 is moved to the appropriate position, quickly and conveniently completing the installation of the mounting plate 10 and greatly improving the efficiency of the entire anchor cable installation operation.

[0032] And, when the cone head 3 is put into the protective sleeve 1, the clamping plate 204 is squeezed and the spring 203 is compressed to store energy due to the space limitation of the inner wall of the protective sleeve 1, the guiding groove 201 guides the clamping plate 204 to move smoothly inward, ensuring the accurate moving direction, when the clamping plate 204 corresponds to the position of the round hole 202, the spring 203 releases the elastic force to push the clamping plate 204 to be embedded into the round hole 202, at this time, the limiting column 205 clamps the edge of the round hole 202, limiting the rotation of the cone head 3 from multiple angles, so that the cone head 3 is closely connected with the protective sleeve 1 and is relatively fixed, ensuring the stability of the internal structure.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A mine grouting anchor cable comprising a protective sheath (1), characterized in that: The inside left side of the protective sleeve (1) is provided with a taper head (3), the right side of the taper head (3) is fixedly connected with a plurality of anchor rods (4), the outer walls of the plurality of anchor rods (4) are all fixedly connected with two positioning plates (5), the same grouting pipe (6) penetrates between the adjacent two positioning plates (5), the outer wall of the protective sleeve (1) is provided with a threaded groove (7), the outer wall of the threaded groove (7) is threadedly connected with a threaded pipe (8), the outer wall of the threaded pipe (8) is fixedly connected with a plurality of anti-skid pipes (12); the inside right side of the threaded pipe (8) is threadedly connected with a reverse threaded sleeve (9), the right side of the reverse threaded sleeve (9) is fixedly connected with a mounting plate (10), the right side of the mounting plate (10) is provided with expansion bolts (11) at four corners, the outer wall of the taper head (3) is provided with a positioning mechanism (2), and the positioning mechanism (2) is used for preventing the taper head (3) from rotating.

2. The mine grouting anchor cable according to claim 1, characterized in that: The positioning mechanism (2) comprises two springs (203), the adjacent two springs (203) are fixedly connected to the outer wall of the taper head (3) on the front and rear sides, the inside front and rear sides of the protective sleeve (1) are provided with guide grooves (201), the inside left side of the protective sleeve (1) is provided with circular holes (202) at the front and rear ends, the sides away from the two springs (203) are fixedly connected with clamping plates (204), and the sides away from the two clamping plates (204) are fixedly connected with limiting columns (205).

3. The mine grouting anchor cable according to claim 1, characterized in that: The outer wall right side upper and lower ends of the protective sleeve (1) are provided with grout outlets (13), and the right sides of the plurality of expansion bolts (11) are all threadedly connected with nuts (14).

4. The mine grouting anchor cable according to claim 1, characterized in that: The right side of the mounting plate (10) is fixedly connected with a fixed plate (15), and the bottom of the fixed plate (15) is fixedly connected with two inclined supporting rods (16).

5. The mine grouting anchor cable according to claim 4, characterized in that: The top of the fixed plate (15) is fixedly connected with a fixed column (17), and the top of the fixed column (17) is fixedly connected with a fixed ring (18).

6. The mine grouting anchor cable according to claim 2, characterized in that: The diameters of the two clamping plates (204) are all smaller than the guide grooves (201), and the diameters of the two clamping plates (204) are all smaller than the circular holes (202).

7. The mine grouting anchor cable according to claim 1, characterized in that: The inside of the two positioning plates (5) is fixedly connected to the outer wall of the anchor rod (4) at equal intervals, and the diameter of the taper head (3) is smaller than the diameter of the protective sleeve (1).

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