Anchoring device for slope protection

Abstract

The invention belongs to the technical field of slope protection, and particularly relates to an anchoring device for slope protection. An inserting rod assembly in the anchoring device is arranged in an anchoring plug in a sliding mode, when the inserting rod assembly is located at an initial position, namely the anchoring device is in an initial state, the anchoring end of the inserting rod assembly is restrained by the cavity wall of a cavity of the anchoring plug and cannot stretch out of the side wall of the anchoring plug, and at the moment, the inserting rod assembly is fixed; a worker can easily push the anchoring device to the deep position of an anchor hole, so that the difficulty of side slope anchoring is reduced, and the construction efficiency is improved; after pushing of the anchoring device is completed, a worker can introduce fluid into the anchoring plug through the pipe body, the fluid is used for pushing the inserting rod assembly, the inserting rod assembly slides from the initial position to the anchoring position, the anchoring device is switched into the anchoring state from the initial state, and in the anchoring state, the anchoring end of the inserting rod assembly pops up from the penetrating hole; therefore, the anchoring device is clamped on the hole wall of the anchor hole, and the anchoring stability of the anchoring device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of slope protection, and in particular relates to an anchoring device for slope protection. Background Art

[0002] The anchor cable is a prestressed steel strand that is fixed to the slope surface at its outer end and passes through the sliding surface of the slope at the other end and is anchored in the stable rock mass within the sliding surface. It directly generates anti-slip resistance on the sliding surface, increases anti-slip friction resistance, and puts the structural surface in a compressed state to improve the integrity of the slope rock mass, fundamentally improve the mechanical properties of the rock mass, effectively control the displacement of the rock mass, promote its stability, and achieve the purpose of regulating bedding, landslides, and dangerous rocks and stones. It is widely used in geotechnical engineering, highways, railways, water conservancy, mining and other fields.

[0003] In order to improve the stability of anchor cables, new types of anchor cables have emerged in the prior art, such as the Chinese utility model patent with patent number CN219753218U, which discloses a slope management anchor cable structure, which belongs to the field of slope management anchor cables. In order to solve the problem that when the anchor cable structure is inserted into the slope soil, the outer shell surface is relatively smooth and the friction between the outer shell and the soil is small, it is difficult to ensure the overall stability of the anchor cable structure, and the use of the anchor cable structure will be affected when sliding occurs; this application uses a connecting ring, a threaded hole, a ground plug shell, a thickened pointed cone and a ground plug pointed rod. The operator holds the pointed cone block and moves the mounting ring close to the connecting ring. At this time, the pointed cone block and the ground plug shell can be fixed together through the cooperation of the bolt and the threaded hole. The two can be used as a whole. When the anchor cable assembly is inserted into the soil, the pointed cone block is inserted into the soil first, and the ground plug pointed rod outside the ground plug shell can effectively increase the contact area between the ground plug shell and the soil, increase friction, and have a better connection and fixing effect, thereby ensuring the stability of the ground plug shell.

[0004] Although the above solution can effectively solve the problem of low friction between the ground plug shell and the soil, since the ground plug pointed rod is fixedly arranged on the ground plug shell; when the ground plug shell is pushed into the anchor hole in the soil, the ground plug pointed rod will be stuck to the hole wall of the anchor hole, making it difficult for the ground plug shell to be sent deep into the anchor hole, resulting in increased difficulty in slope anchoring and reduced construction efficiency of slope anchoring; at the same time, when pushing the ground plug shell, the ground plug pointed rod will also damage the wall of the anchor hole, causing the anchor hole to easily collapse, affecting subsequent grouting operations. Summary of the Invention

[0005] The present invention provides an anchoring device for slope protection to solve the technical problem in the anchor cable structure of the prior art that the ground plug pointed rod on the ground plug shell will get stuck in the hole wall of the anchor hole, making it difficult to push the ground plug shell into the deep of the anchor hole, resulting in increased difficulty in slope anchoring and reduced efficiency in slope anchoring construction.

[0006] To solve the above problems, the present invention is implemented through the following technical solutions: An anchoring device for slope protection, comprising an anchoring plug, a rod assembly, a pipe body and an anchor cable; The anchoring plug is a tubular structure with closed ends. The outer wall of the anchoring plug is provided with a through hole communicating with the inner cavity of the anchoring plug. The rod assembly is slidably arranged in the cavity along the length direction of the anchoring plug. One end of the anchor cable is connected to the tail end of the anchor plug; One end of the tube body passes through the end wall of the tail end of the anchoring plug and is connected to the cavity, and is used to introduce fluid into the cavity, using the fluid to push the rod assembly to slide from the initial position to the anchoring position. When the rod assembly slides to the anchoring position, the anchoring end of the rod assembly can pop out of the perforation and extend to the outside of the anchoring plug.

[0007] In order to better implement the present invention, further optimization is made in the above structure, wherein the rod assembly includes an anchor rod, a sliding seat and a sleeve; The sliding seat is slidably arranged in the cavity along the length direction of the anchoring plug; The sleeve is a tubular structure with closed ends. The sleeve is set on the sliding seat. The length direction of the sleeve is perpendicular to the length direction of the anchoring plug. A sliding hole is set at one end of the sleeve facing the cavity wall. The anchor rod is slid along the length direction of the sleeve and is set at the sliding hole. An elastic part is set between the anchor rod and the bottom of the sleeve for pushing the anchor rod away from the bottom of the sleeve.

[0008] In order to better implement the present invention, the above structure is further optimized, and a limiting block for clamping the elastic member is provided at the tail end of the anchor rod.

[0009] In order to better realize the present invention, further optimization is made in the above structure, the number of the sleeves and the anchoring rods are both multiple, and the multiple sleeves are arranged on the sliding seat at equal intervals around the central axis of the anchoring plug, and the multiple anchoring rods are slidably arranged in the sliding holes of the multiple sleeves in a one-to-one correspondence.

[0010] In order to better implement the present invention, further optimization is made in the above structure so that the shape of the cross section of the sliding seat matches the shape of the cross section of the cavity.

[0011] In order to better implement the present invention, further optimization is made in the above structure, and the number of the plug rod assemblies is multiple, and the multiple plug rod assemblies are arranged along the length direction of the anchor plug.

[0012] In order to better implement the present invention, further optimization is made in the above structure, and the anchoring device for slope protection further includes a sliding block; The sliding block is slidably arranged in the cavity along the length direction of the anchor plug, and the sliding block is located on a side of the plug rod assembly facing the tail end of the anchor plug; A liquid through hole communicating with the cavity is provided on the side wall of the anchoring plug; in the initial state, the liquid through hole is located between the sliding block and the head end of the anchoring plug; in the anchoring state, the liquid through hole is located between the sliding block and the tail end of the anchoring plug.

[0013] In order to better implement the present invention, the above structure is further optimized, and a unidirectional conductive through hole is provided on the sliding block; in the cavity, the fluid between the sliding block and the head end of the anchor plug can enter between the sliding block and the tail end of the anchor plug through the through hole.

[0014] In order to better implement the present invention, further optimization is made in the above structure, wherein the anchoring plug includes a first cylinder and a second cylinder; The first cylinder and the second cylinder are both tubular structures with one end open, and the open end of the first cylinder is connected to the open end of the second cylinder by a thread; One end of the anchor cable is connected to the closed end of the first cylinder.

[0015] In order to better implement the present invention, the above structure is further optimized so that the closed end of the second cylinder is a pointed cone-shaped structure protruding in a direction away from the first cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the anchoring device provided by the present invention, the rod assembly is slidably arranged inside the anchoring plug. When the rod assembly is in the initial position, that is, the anchoring device is in the initial state, the anchoring end of the rod assembly will be constrained by the cavity wall of the anchoring plug and will not extend from the side wall of the anchoring plug. When anchoring the slope, the staff can easily push the anchoring device in the initial state to the deep end of the anchor hole, thereby reducing the difficulty of slope anchoring and improving the construction efficiency of slope anchoring; after completing the pushing of the anchoring device, the staff can pass fluid into the interior of the anchoring plug through the pipe body, and use the fluid to push the rod assembly to make the rod assembly slide from the initial position to the anchoring position, and when the rod assembly slides to the anchoring position, the anchoring device switches from the initial state to the anchoring state, and the anchoring end of the rod assembly can pop out from the perforation and extend to the outside of the anchoring plug to be stuck in the hole wall of the anchor hole, thereby improving the anchoring stability of the anchoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of an anchoring device for slope protection of the present invention in an initial state.

[0019] Figure 2 yes Figure 1 A partial enlarged view of part A in the middle.

[0020] Figure 3 It is a structural schematic diagram of an anchoring device for slope protection of the present invention when it is in an anchoring state.

[0021] Figure 4 It is a cross-sectional view of an anchor plug in an anchor device for slope protection according to the present invention.

[0022] Figure 5 It is a structural schematic diagram of an insertion rod assembly in an anchoring device for slope protection according to the present invention.

[0023] Figure 6 It is a cross-sectional view of a sliding block in an anchoring device for slope protection according to the present invention.

[0024] In the picture: 1. Anchor plug; 11. First cylinder; 111. Liquid port; 12. Second cylinder; 121. Perforation; 2. Insert rod assembly; 21. Anchor rod; 211. Limit block; 22. Sliding seat; 23. Sleeve; 24. Elastic member; 3. Pipe body; 4. Anchor cable; 5. Sliding block; 51. Through hole; 52. Sealing plate. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise specified, the term "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention depending on the specific circumstances.

[0028] In the embodiments of the present application, Figures 1 to 6 As shown, the anchoring device includes an anchoring plug 1, a rod assembly 2, a pipe body 3 and an anchor cable 4; wherein, The anchoring plug 1 is a tubular structure with closed ends. The outer wall of the anchoring plug 1 is provided with a through hole 121 communicating with the inner cavity of the anchoring plug 1. The rod assembly 2 is slidably arranged in the cavity along the length direction of the anchoring plug 1. One end of the anchor cable 4 is connected to the tail end of the anchor plug 1; One end of the tube body 3 passes through the end wall of the rear end of the anchoring plug 1 and communicates with the cavity.

[0029] When the anchoring device is in the initial state, the rod assembly 2 is located at the initial position in the cavity. Figure 1 , the insertion rod assembly 2 abuts against the cavity wall through its anchoring end, so that the position of the insertion rod assembly 2 is not easily changed; When performing slope anchoring, the worker can insert the anchor plug 1 in the anchoring device in the initial state into the anchor hole on the slope and push the anchor cable 4 to easily push the anchor plug 1 into the depth of the anchor hole until the anchor plug 1 is against the bottom of the anchor hole, or stop when the anchor plug 1 reaches the anchoring position (the position of the anchor plug 1 is determined by the length of the anchor cable 4 pushed into the anchor hole), completing the pushing of the anchoring device; Subsequently, the staff can introduce fluid into the cavity through the tube body 3, and use the pressure generated by the fluid to push the rod assembly 2 to overcome the friction between the anchoring end of the rod assembly 2 and the cavity wall, so that the rod assembly 2 slides from the initial position to the anchoring position; When the rod assembly 2 slides to the anchoring position, the anchoring end of the rod assembly 2 is opposite to the position of the through hole 121, and the constraint of the cavity wall on the anchoring end of the rod assembly 2 is eliminated. At this time, the anchoring end of the rod assembly 2 can be ejected from the through hole 121. Figure 2 , the anchoring device changes from an initial state to an anchoring state; In the anchoring state, the anchoring end of the rod assembly 2 extends to the outside of the anchoring plug 1 and is engaged with the wall of the anchor hole to improve the anchoring stability of the anchoring device.

[0030] When the anchoring device is in the initial state, the anchoring end of the rod assembly 2 does not extend out of the anchoring plug 1. The surface of the anchoring plug 1 is relatively smooth, and the staff can use the anchor cable 4 to easily push it to the depth of the anchor hole, thereby reducing the difficulty of slope anchoring and improving the construction efficiency of slope anchoring. After the anchoring device is pushed, the pressure generated by the fluid can be used to push the rod assembly 2, so that the anchoring device is switched from the initial state to the anchoring state, so that the anchoring end of the rod assembly 2 can extend from the anchoring plug 1 through the through hole 121 and be stuck in the wall of the anchor hole to improve the anchoring effect.

[0031] It should be noted that the anchoring end of the above-mentioned insertion rod assembly 2 is the ground plug-in rod mentioned in the background technology. In this embodiment, the anchoring end of the insertion rod assembly 2 can move along the radial direction of the anchoring plug 1 to change the state of the anchoring device, so that the anchoring device can be easily placed in the anchor hole, and after the placement is completed, the anchoring end of the insertion rod assembly 2 can be used to increase the anchoring effect; compared with the fixed ground plug-in rod in the prior art, there is a clear difference.

[0032] In some embodiments, the anchor plug 1 includes a first cylinder 11 and a second cylinder 12. Figure 4 ;in, The first barrel 11 and the second barrel 12 are both tubular structures with one end open. The open end of the first barrel 11 and the open end of the second barrel 12 are connected by threads, so that the inner cavity of the first barrel 11 and the inner cavity of the second barrel 12 together form the above-mentioned cavity. The closed end of the first cylinder 11 is the tail end of the above-mentioned anchor plug 1, one end of the anchor cable 4 is connected to the closed end of the first cylinder 11, and one end of the tube body 3 passes through the closed end of the first cylinder 11 and communicates with the cavity.

[0033] Preferably, the closed end of the second cylinder 12 is the head end of the above-mentioned anchoring plug 1, and the closed end of the second cylinder 12 is a pointed cone structure protruding in the direction away from the first cylinder 11, so as to reduce the resistance of the anchoring plug 1 when moving deep into the anchor hole, so that the staff can more easily push the anchoring plug 1 to the deep end of the anchor hole, thereby further reducing the difficulty of slope anchoring.

[0034] In some embodiments, the above-mentioned rod assembly 2 includes an anchor rod 21, a slide 22 and a sleeve 23, see Figure 2 and Figure 5 ;in, The slide 22 is slidably disposed in the cavity along the length direction of the anchor plug 1. In this embodiment, the cross-sectional shape of the slide 22 matches the cross-sectional shape of the cavity, so that the slide 22 is more stable when sliding. The sleeve 23 is a tubular structure with closed ends. The sleeve 23 is arranged on the sliding seat 22. The length direction of the sleeve 23 is perpendicular to the length direction of the anchoring plug 1. A sliding hole is provided at one end of the sleeve 23 facing the cavity wall. The anchor rod 21 is slidably arranged in the sliding hole along the length direction of the sleeve 23. An elastic member 24 is provided between the anchor rod 21 and the bottom of the sleeve 23 for pushing the anchor rod 21 away from the bottom of the sleeve 23.

[0035] When the rod assembly 2 moves to the anchoring position, the constraint of the cavity wall on the anchor rod 21 is eliminated, and the elastic force of the elastic member 24 can push the anchor rod 21 away from the bottom of the sleeve 23, so that the head end of the anchor rod 21 can extend out of the anchor plug 1 and engage with the wall of the anchor hole, thereby improving the anchoring effect.

[0036] It should be noted that a limiting block 211 for clamping the elastic member 24 is provided at the tail end of the anchor rod 21; The elastic member 24 is a coil spring, one end of which is against the stop block 211 and the other end is against the bottom of the sleeve 23. The coil spring is always in a compressed state. In this state, the coil spring can push the anchor rod 21 away from the bottom of the sleeve 23. When the anchoring device is in the initial state, the head end of the anchoring rod 21 always contacts the cavity wall under the elastic force of the coil spring; When the anchoring device is in the anchoring state, the constraint of the cavity wall on the anchoring rod 21 is eliminated, and the head end of the anchoring rod 21 can pass through the through hole 121 and extend to the outside.

[0037] In order to prevent the coil spring from failing due to long-term compression, you can choose to assemble the anchor device on site when it is needed. The specific assembly method is as follows: Push the anchor rod 21 toward the bottom of the sleeve 23 so that the width of the rod assembly 2 is smaller than the width of the cavity, so that the rod assembly 2 can be placed in the second cylinder 12, and the first cylinder 11 and the second cylinder 12 are threadedly connected to complete the installation of the anchor device.

[0038] In some embodiments, the number of the above-mentioned sleeves 23 and anchor rods 21 is multiple, and multiple sleeves 23 are arranged on the sliding seat 22 at equal intervals around the central axis of the anchoring plug 1, and multiple anchor rods 21 are slidably arranged in the sliding holes of the multiple sleeves 23 in a one-to-one manner to improve the anchoring effect of the anchoring device.

[0039] Preferably, the slide 22 is provided with a mounting plate on one side facing the head end of the anchor plug 1; the number of the sleeves 23 and the anchor rod 21 is two, and the two sleeves 23 are respectively provided on both sides of the mounting plate, see Figure 5 , the axes of the two sleeves 23 coincide, and the two anchor rods 21 are respectively arranged in the two sleeves 23; Two through holes 121 are provided on the side wall of the anchoring plug 1 . The positions of the two through holes 121 correspond to the positions of the two sleeves 23 , so that when the slide 22 slides to the anchoring position, the two anchor rods 21 can pass through the two through holes 121 respectively.

[0040] More preferably, a sliding groove is provided on the cavity wall, see Figure 4 The length direction of the chute is parallel to the sliding direction of the rod assembly 2, the width of the chute matches the width of the end of the anchor rod 21, the two ends of the chute correspond to the initial position and the anchor position of the rod assembly 2, and the end of the chute corresponding to the anchor position is connected to the above-mentioned through-hole 121; When the insertion rod assembly 2 slides in the cavity along the length direction of the anchoring plug 1, the head end of the anchoring rod 21 is always located in the slide groove. The slide groove can limit the position of the anchoring rod 21, preventing the insertion rod assembly 2 from rotating around the central axis of the anchoring plug 1, causing it to intersect with the through hole 121 and unable to pass through the through hole 121.

[0041] In some embodiments, the number of the above-mentioned rod assemblies 2 is multiple, and the multiple rod assemblies 2 are arranged along the length direction of the anchor plug 1, and adjacent rod assemblies 2 abut against each other, see Figure 1 and Figure 3 When the multiple rod assemblies 2 slide to the anchoring position, the contact area between the anchoring device and the anchor hole can be increased, and the friction force can be increased to further improve the anchoring effect of the anchoring device.

[0042] In some embodiments, the anchoring device further comprises a sliding block 5, see Figure 1 and Figure 3 ;in, The sliding block 5 is slidably arranged in the cavity along the length direction of the anchor plug 1, and the sliding block 5 is located on the side of the insertion rod assembly 2 facing the tail end of the anchor plug 1. The sliding block 5 divides the cavity into two mutually isolated first and second cavities; A liquid passage 111 communicating with the cavity is provided on the side wall of the anchoring plug 1; When the anchoring device is in the initial state, the liquid passage 111 is located between the sliding block 5 and the head end of the anchoring plug 1, that is, the liquid passage 111 is connected to the first cavity; After the staff completes pushing the anchoring device, the liquid outlet end of the grouting equipment can be connected to the pipe body 3. The grouting equipment injects cement slurry (fluid) into the second cavity through the pipe body 3. The cement slurry squeezes and pushes the sliding block 5, causing the sliding block 5 to move and push the rod assembly 2 to slide to the anchoring position. At this time, the liquid port 111 is located between the sliding block 5 and the tail end of the anchor plug 1, that is, the liquid port 111 is connected to the second cavity; in this state (anchored state), the cement slurry in the second cavity can flow into the anchor hole through the liquid port 111, completing the grouting of the anchor hole; The cement slurry in this method is injected from the depth of the anchor hole to the anchor hole mouth, which is particularly suitable for anchor holes with larger depths. It can avoid the situation where the cement slurry is not fully filled due to grouting from the anchor hole mouth to the depth of the anchor hole, thereby further improving the anchoring effect of the anchoring device.

[0043] In some embodiments, the sliding block 5 is provided with a unidirectional through hole 51; The fluid between the sliding block 5 and the head end of the anchor plug 1 can enter between the sliding block 5 and the tail end of the anchor plug 1 through the through hole 51, that is, the fluid in the first cavity can enter the second cavity through the through hole 51, while the fluid in the second cavity cannot enter the first cavity through the through hole 51.

[0044] Because some of the drilled anchor holes will gather a certain amount of mud and water, before grouting, most of the mud and water in the anchor holes need to be pumped out to prevent the mud and water from affecting the solidification effect of the injected cement slurry; After the anchoring device is pushed, if there is a lot of mud and water inside the anchor hole, the liquid level of the mud and water will be higher than the position of the liquid through port 111, and the mud and water will enter the first cavity from the liquid through port 111 and enter the second cavity through the through hole 51. At this time, the staff can connect the suction end of the suction pump to the end of the pipe body 3 away from the anchor plug 1, and use the suction pump to pump out the mud and water in the second cavity until the mud and water level is lower than the level of the liquid through port 111, that is, stop when the mud and water can no longer enter the first cavity; After the mud and water are sucked out, grouting can be carried out into the anchor hole. The sliding block 5 is squeezed by the cement slurry, so that the sliding block 5 slides in the direction of the rod assembly 2 under pressure, and pushes the rod assembly 2 to slide from the initial position to the anchor position, completing the state switching of the anchoring device.

[0045] It is worth noting that when the liquid level of the muddy water is lower than the position of the liquid through port 111, it is considered that the muddy water content is low and has little impact on the subsequent solidification of the cement slurry. Therefore, there is no need to suck the muddy water below the position of the liquid through port 111.

[0046] Preferably, a sealing plate 52 is provided on the side of the sliding block 5 facing the second cavity. One side of the sealing plate 52 is hinged to the end face of the sliding block 5, and a torsion spring is provided at the hinge. Under normal conditions, the sealing plate 52 blocks the through hole 51 under the action of the torsion spring force to achieve a one-way conduction effect.

[0047] When it is necessary to suck out muddy water, the staff can first connect the end of the pipe body 3 away from the anchor plug 1 to the suction end of the suction pump. The suction pump can extract the air in the second cavity, making the interior of the second cavity into a negative pressure state; At this time, the first cavity is at normal pressure, which is greater than the pressure in the second cavity. Under the action of pressure, the sealing plate 52 rotates around its hinge, opening the through hole 51. The muddy water entering the first cavity through the liquid opening 111 will enter the second cavity through the through hole 51 and be sucked out of the anchor hole by the suction pump, completing the extraction of the muddy water. After completing the suction of the mud and water, the staff removes the suction pump, the second cavity returns to normal pressure, the pressure in the first cavity is equal to that in the second cavity, and the sealing plate 52 blocks the through hole 51 under the action of the torsion spring force; then, the staff can perform grouting work in the above manner.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An anchoring device for slope protection, characterized by: It comprises an anchor plug (1), a rod assembly (2), a pipe body (3) and an anchor cable (4); The anchoring plug (1) is a tubular structure with closed ends. The outer wall of the anchoring plug (1) is provided with a through hole (121) communicating with the inner cavity of the anchoring plug (1). The rod assembly (2) is slidably arranged in the cavity along the length direction of the anchoring plug (1). One end of the anchor cable (4) is connected to the tail end of the anchor plug (1); One end of the tube body (3) passes through the end wall of the rear end of the anchoring plug (1) and is connected to the cavity, and is used to introduce fluid into the cavity, and use the fluid to push the rod assembly (2) to slide from the initial position to the anchoring position, and when the rod assembly (2) slides to the anchoring position, the anchoring end of the rod assembly (2) can be ejected from the through hole (121) and extend to the outside of the anchoring plug (1).

2. The anchoring device for slope protection according to claim 1, characterized in that: The insertion rod assembly (2) comprises an anchor rod (21), a sliding seat (22) and a sleeve (23); The sliding seat (22) is slidably arranged in the cavity along the length direction of the anchoring plug (1); The sleeve (23) is a tubular structure with both ends closed. The sleeve (23) is arranged on the slide seat (22). The length direction of the sleeve (23) is perpendicular to the length direction of the anchoring plug (1). A sliding hole is provided at one end of the sleeve (23) facing the cavity wall. The anchor rod (21) is slidably arranged in the sliding hole along the length direction of the sleeve (23). An elastic member (24) is provided between the anchor rod (21) and the bottom of the sleeve (23) for pushing the anchor rod (21) away from the bottom of the sleeve (23).

3. The anchoring device for slope protection according to claim 2, characterized in that: A limiting block (211) for clamping the elastic member (24) is provided at the tail end of the anchor rod (21).

4. The anchoring device for slope protection according to claim 3, characterized in that: The sleeves (23) and the anchoring rods (21) are both plural in number, and the plurality of sleeves (23) are arranged on the slide seat (22) at equal intervals around the central axis of the anchoring plug (1), and the plurality of anchoring rods (21) are slidably arranged in the sliding holes of the plurality of sleeves (23) in a one-to-one correspondence.

5. The anchoring device for slope protection according to claim 4, characterized in that: The shape of the cross section of the slide seat (22) matches the shape of the cross section of the cavity.

6. The anchoring device for slope protection according to any one of claims 1 to 5, characterized in that: There are multiple insertion rod assemblies (2), and the multiple insertion rod assemblies (2) are arranged along the length direction of the anchoring plug (1).

7. The anchoring device for slope protection according to claim 1, characterized in that: Also included is a sliding block (5); The sliding block (5) is slidably arranged in the cavity along the length direction of the anchoring plug (1), and the sliding block (5) is located on a side of the plug rod assembly (2) facing the rear end of the anchoring plug (1); A liquid passage (111) communicating with the cavity is provided on the side wall of the anchoring plug (1); in the initial state, the liquid passage (111) is located between the sliding block (5) and the head end of the anchoring plug (1); in the anchoring state, the liquid passage (111) is located between the sliding block (5) and the tail end of the anchoring plug (1).

8. The anchoring device for slope protection according to claim 7, characterized in that: The sliding block (5) is provided with a unidirectional through hole (51); in the cavity, the fluid between the sliding block (5) and the head end of the anchor plug (1) can enter between the sliding block (5) and the end of the anchor plug (1) through the through hole (51).

9. The anchoring device for slope protection according to claim 1, characterized in that: The anchoring plug (1) comprises a first cylindrical body (11) and a second cylindrical body (12); The first cylinder (11) and the second cylinder (12) are both tubular structures with one end open, and the open end of the first cylinder (11) and the open end of the second cylinder (12) are connected by a thread; One end of the anchor cable (4) is connected to the closed end of the first cylinder (11).

10. The anchoring device for slope protection according to claim 9, characterized in that: The closed end of the second cylinder (12) is a pointed cone-shaped structure protruding in a direction away from the first cylinder (11).

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