Anchoring device for slope reinforcement

Abstract

The present application relates to the technical field of anchoring device, disclose a kind of for slope reinforcement anchoring device, including anchor rod, the anchor rod is hollow structure, further include: clamping column, the outer periphery of the anchoring end of the anchor rod is evenly penetrated and is provided with multiple inclined holes, the clamping column is inserted in the inside of inclined hole, the clamping column is used to after the anchor rod is inserted into slope soil, stretch out outward, increase the stability of anchor rod;Automatic pre-tightening mechanism, the automatic pre-tightening mechanism is used to when injecting anchoring agent into the inside of anchor rod, automatically pre-tightening force is applied to anchor rod;The automatic pre-tightening mechanism includes backing plate, the backing plate is sleeved on the outside of anchor rod, for contact with the surface layer of slope soil.This application when injecting anchoring agent into the inside of anchor rod, first drive conical boss using the pressure of anchoring agent and eject clamping column outward, form barb structure on the outside of anchor rod, to provide reliable mechanical anchoring force before anchoring agent solidification, effectively prevent anchor rod from loosening.

Description

Technical Field

[0001] This invention relates to the field of anchoring device technology, and more particularly to an anchoring device for slope reinforcement. Background Technology

[0002] Anchor bolt support is a reinforcement and support method used in surface engineering projects such as slopes and deep foundation pits, as well as in underground chamber construction such as tunnels and mining areas. Anchor bolts, made of metal, wood, polymer, or other materials, are driven into pre-drilled holes in the surface rock or the surrounding rock mass. Utilizing the special structure of the bolt head and body, or the support plate at the tail, or relying on bonding, the unstable rock mass is combined with the stable rock mass to create a suspension effect, a composite beam effect, or a reinforcement effect, thereby achieving the purpose of support.

[0003] When the anchoring agent is injected into the closed borehole, the grout pressure will exert an outward thrust on the anchor rod. If the anchor rod does not have an immediate and reliable anchoring point, this pressure will instead push the anchor rod to move out of the hole, causing the anchor rod to be pushed out by the grout, resulting in the anchor rod loosening and causing initial displacement, which affects the final anchoring depth and positional accuracy. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anchoring device for slope reinforcement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anchoring device for slope reinforcement includes an anchor rod, the anchor rod being a hollow structure, and further includes: The anchor rod has multiple inclined holes evenly distributed around its anchoring end. The anchor rod is inserted into the inclined holes and extends outward after the anchor rod is inserted into the slope soil to increase the stability of the anchor rod. An automatic pre-tightening mechanism is used to automatically apply a pre-tightening force to the anchor bolt when the anchoring agent is injected into the anchor bolt; The automatic pre-tightening mechanism includes a pad, which is sleeved on the outside of the anchor rod and used to contact the surface soil of the slope.

[0006] As a further embodiment of the present invention, the anchor rod is equipped with a pressing mechanism that pushes multiple locking pins outward. The pressing mechanism includes multiple conical protrusions slidably installed inside the anchor rod. The conical protrusions correspond to the positions of the locking pins, and multiple connecting rods are fixedly installed between the multiple conical protrusions.

[0007] As a further embodiment of the present invention, a magnetic column is fixedly installed on the inner wall of the anchoring end of the anchor rod. The magnetic column is disposed through the outer surface of multiple conical protrusions, and multiple locking posts and the magnetic column are magnetically attracted to each other.

[0008] As a further embodiment of the present invention, the automatic pre-tightening mechanism further includes a fixing plate, which is fixedly installed on the outside of the anchor rod. An extension assembly is installed between the fixing plate and the pad. The extension assembly includes multiple first rotating plates rotatably installed on the outer periphery of the pad. Multiple second rotating plates are rotatably installed on the outer periphery of the fixing plate. The ends of the first rotating plates and the second rotating plates are hinged to each other, and the hinge point between the first rotating plates and the second rotating plates is inclined towards the anchor rod. A pressure plate is sleeved on the outer periphery of the anchor rod. The outer periphery of the pressure plate can abut against the side of the first rotating plate near the anchor rod. A transmission assembly is installed between the inside of the anchor rod and the pressure plate.

[0009] As a further embodiment of the present invention, the transmission assembly includes a movable plug slidably installed inside the anchor rod, a push rod is inserted through the free end of the anchor rod, one end of the push rod is fixedly installed on the outer surface of the movable plug, a top plate is fixedly installed on the other end of the push rod, and multiple tie rods are fixedly installed between the top plate and the outer surface of the pressure plate.

[0010] As a further embodiment of the present invention, a compression spring is sleeved on the outer surface of the top rod, and the compression spring is disposed between the movable plug and the inner wall of the free end of the anchor rod.

[0011] As a further embodiment of the present invention, an injection pipe is fixedly installed through the outer surface of the free end of the anchor rod, and the outlet of the injection pipe is located below the movable plug.

[0012] As a further embodiment of the present invention, multiple sets of one-way limiting components are installed between the pressure plate and the anchor rod. The one-way limiting component includes a spring rod fixedly installed on the upper surface of the pressure plate. A locking block is fixedly installed at the free end of the spring rod. Multiple locking slots matching the locking blocks are evenly opened on the outer periphery of the anchor rod near the pressure plate along its axial direction. The locking blocks can be inserted into any of the locking slots.

[0013] As a further embodiment of the present invention, the top of the card block near the anchor rod is set with an inclined surface, so that the card block automatically engages into the next slot when it moves upward.

[0014] As a further aspect of the present invention, the upper surface of the fixed disk is provided with a plurality of through holes for the pull rod to pass through.

[0015] The beneficial effects of this invention are as follows: 1. When injecting anchoring agent into the anchor rod, the pressure of the anchoring agent first drives the conical boss to push the locking post outward, forming a barbed structure on the outside of the anchor rod. This provides reliable mechanical anchoring force before the anchoring agent cures, effectively preventing the anchor rod from loosening and improving the final anchoring depth and positional accuracy. 2. The pressure of the anchoring agent drives the movable plug and transmission components, causing the pressure plate to rise and push the fixed plate and pad to generate a reverse thrust. This actively applies pre-tightening force to the slope soil before the anchoring agent has cured, which can suppress the initial displacement of the slope in time, prevent the internal structural surfaces of the soil from shifting or cracking, and significantly reduce the risk of landslides during construction. 3. The one-way self-locking mechanism composed of the spring rod and the locking block allows the pressure plate to automatically lock into the subsequent slot during the upward movement, forming a mechanical anti-reverse locking, which effectively prevents the pre-tightening force from loosening in the opposite direction due to pressure fluctuations or external factors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation state structure of an anchoring device for slope reinforcement proposed in this invention. Figure 2 This is a schematic diagram of the overall structure of an anchor rod of an anchoring device for slope reinforcement proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of an anchor rod in an anchoring device for slope reinforcement proposed in this invention. Figure 4 This is a schematic diagram of the anchor bolt structure of an anchoring device for slope reinforcement proposed in this invention; Figure 5 This is a schematic diagram of the tie rod structure of an anchoring device for slope reinforcement proposed in this invention; Figure 6 This is a schematic diagram of the pad and fixing plate structure of an anchoring device for slope reinforcement proposed in this invention; Figure 7 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 8 for Figure 4 Enlarged view of the structure at point B in the middle.

[0017] In the diagram: 1. Anchor bolt; 2. Inclined hole; 3. Locking post; 4. Magnetic post; 5. Conical boss; 6. Connecting rod; 7. Injection pipe; 8. Pad; 9. Fixing plate; 10. First rotating plate; 11. Second rotating plate; 12. Movable plug; 13. Top rod; 14. Top plate; 15. Pull rod; 16. Pressure plate; 17. Compression spring; 18. Spring rod; 19. Locking block; 20. Locking groove; 21. Through hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] See attached document Figure 1 -Appendix Figure 8 An anchoring device for slope reinforcement includes an anchor rod 1, which has a hollow structure, and further includes: The anchor post 3 and the anchor rod 1 have multiple inclined holes 2 evenly distributed around their anchoring ends. The anchor post 3 is inserted into the inclined holes 2. The anchor post 3 is used to extend outward after the anchor rod 1 is inserted into the slope soil to increase the stability of the anchor rod 1. An automatic pre-tightening mechanism is used to automatically apply a pre-tightening force to the anchor bolt 1 when the anchoring agent is injected into the anchor bolt 1; The automatic pre-tightening mechanism includes a pad 8, which is fitted on the outside of the anchor rod 1 and is used to contact the surface soil of the slope.

[0021] In this embodiment, the anchor rod 1 is equipped with a pressing mechanism that pushes multiple locking posts 3 outward. The pressing mechanism includes multiple conical protrusions 5 slidably installed inside the anchor rod 1. The positions of the conical protrusions 5 and the locking posts 3 are corresponding, and multiple connecting rods 6 are fixedly installed between the multiple conical protrusions 5.

[0022] During use, the anchor rod 1 is inserted into the slope soil, and anchoring agent is injected into the anchor rod 1 through the injection pipe 7. When the anchoring agent in the anchor rod 1 is full, injection continues. The pressure of the anchoring agent pushes the conical boss 5 to move towards the anchoring end, so that the conical surface of the conical boss 5 pushes multiple locking posts 3 outward, so that the locking posts 3 are inserted into the slope soil layer, forming a barbed structure on the outside of the anchor rod 1, further strengthening the anchoring of the anchor rod 1 and preventing the anchor rod 1 from loosening. In addition, the setting of the locking posts 3 can ensure that the subsequent automatic pre-tightening mechanism will not cause displacement of the anchor rod 1 during implementation, ensuring the stability of the anchoring of the anchor rod 1.

[0023] In this embodiment, a magnetic column 4 is fixedly installed on the inner wall of the anchoring end of the anchor rod 1. The magnetic column 4 is disposed through the outer surface of multiple conical protrusions 5, and multiple locking posts 3 and magnetic column 4 are magnetically attracted to each other.

[0024] When the anchor rod 1 is not inserted into the soil layer, multiple locking posts 3 are attracted and stored inside the anchor rod 1 by the magnetic posts 4, so as to reduce the resistance when the anchor rod 1 is inserted into the soil layer and facilitate the insertion of the anchor rod 1.

[0025] In this embodiment, the automatic pre-tightening mechanism further includes a fixing plate 9, which is fixedly installed on the outside of the anchor rod 1. An extension assembly is installed between the fixing plate 9 and the pad 8. The extension assembly includes multiple first rotating plates 10 rotatably installed on the outer periphery of the pad 8, and multiple second rotating plates 11 rotatably installed on the outer periphery of the fixing plate 9. The ends of the first rotating plates 10 and the second rotating plates 11 are hinged to each other, and the hinge point of the first rotating plates 10 and the second rotating plates 11 is inclined towards the anchor rod 1. A pressure plate 16 is sleeved on the outer periphery of the anchor rod 1. The outer periphery of the pressure plate 16 can abut against the side of the first rotating plate 10 near the anchor rod 1. The interior of the anchor rod 1 and the pressure plate 16 are separated. A transmission assembly is installed, including a movable plug 12 slidably installed inside the anchor rod 1. A push rod 13 is inserted through the free end of the anchor rod 1. One end of the push rod 13 is fixedly installed on the outer surface of the movable plug 12. A top plate 14 is fixedly installed on the other end of the push rod 13. Multiple tie rods 15 are fixedly installed between the top plate 14 and the outer surface of the pressure plate 16. Multiple through holes 21 for the tie rods 15 to pass through are opened through the upper surface of the fixed plate 9. An injection pipe 7 is fixedly installed through the outer surface of the free end of the anchor rod 1. The outlet of the injection pipe 7 is located below the movable plug 12 to ensure that the anchoring agent can push the movable plug 12 upward.

[0026] While the anchoring agent continues to be injected, the pressure of the anchoring agent will push the movable plug 12 to move outward, so that the movable plug 12 lifts the pressure plate 16 upward through the top rod 13, the top plate 14 and the pull rod 15, so that the outer periphery of the pressure plate 16 abuts against the side of the inclined first rotating plate 10 near the anchor rod 1. Under the squeezing action of the inclined side of the first rotating plate 10, the hinge point of the first rotating plate 10 and the second rotating plate 11 can be pushed outward, so that the first rotating plate 10 and the second rotating plate 11 are opened apart, thereby generating a thrust between the fixed plate 9 and the pad 8. This allows the pad 8 to apply a pre-tightening force to the slope soil before the anchoring agent cures, which can effectively suppress the initial displacement of the slope, prevent the internal structural surface of the soil from shifting or cracking, and significantly reduce the risk of landslide during construction.

[0027] In this embodiment, a compression spring 17 is sleeved on the outer surface of the top rod 13, and the compression spring 17 is disposed between the movable plug 12 and the inner wall of the free end of the anchor rod 1.

[0028] During use, a certain thrust is applied to the movable plug 12 by the compression spring 17, so that the movable plug 12 can resist a certain pressure of the anchoring agent, so that the locking post 3 will no longer move after being pushed out and will always be in the extended state, thus ensuring the stability of the anchoring end of the anchor rod 1.

[0029] In this embodiment, multiple sets of one-way limiting components are installed between the pressure plate 16 and the anchor rod 1. The one-way limiting components include a spring rod 18 fixedly installed on the upper surface of the pressure plate 16. A locking block 19 is fixedly installed at the free end of the spring rod 18. Multiple slots 20 matching the locking block 19 are evenly opened along the axial direction of the outer periphery of the anchor rod 1 near the pressure plate 16. The locking block 19 can be inserted into any slot 20. The top of the locking block 19 near the end of the anchor rod 1 is set with an inclined surface, so that the locking block 19 automatically locks into the next slot 20 through the inclined surface when it moves upward.

[0030] When the pressure plate 16 is pulled, the pressure plate 16 will drive the locking block 19 to move synchronously through the spring rod 18. Since the end of the locking block 19 is set with a slope, the locking block 19 can automatically move out of the locking slot 20 through the squeezing action of the slope when it is pulled upward, and when it moves to the next locking slot 20, it will be pushed back into the slot by the spring rod 18, thereby limiting the position of the pressure plate 16 and preventing the pressure plate 16 from moving in the opposite direction and causing the pre-tightening force to loosen.

[0031] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When in use, the anchor rod 1 is inserted into the slope soil, and the anchoring agent is injected into the anchor rod 1 through the injection pipe 7. When the anchoring agent in the anchor rod 1 is full, the injection continues. The pressure of the anchoring agent pushes the conical boss 5 to move towards the anchoring end, so that the conical surface of the conical boss 5 pushes out multiple locking posts 3, so that the locking posts 3 are inserted into the slope soil layer, forming a barbed structure on the outside of the anchor rod 1, further strengthening the anchoring of the anchor rod 1 and preventing the anchor rod 1 from loosening. While the anchoring agent continues to be injected, the pressure of the anchoring agent will push the movable plug 12 to move outward, so that the movable plug 12 will lift the pressure plate 16 upward through the top rod 13, the top plate 14 and the pull rod 15, so that the outer periphery of the pressure plate 16 abuts against the side of the first rotating plate 10 near the anchor rod 1, pushing the hinge point of the first rotating plate 10 and the second rotating plate 11 outward, thereby generating a thrust between the fixed plate 9 and the pad 8, so that the pad 8, together with the anchor rod 1, can apply a pre-tightening force to the slope soil before the anchoring agent cures, which can effectively suppress the initial displacement of the slope, prevent the internal structural surface of the soil from shifting or cracking, and significantly reduce the risk of landslide during construction; When the pressure plate 16 is pulled, the pressure plate 16 will drive the locking block 19 to move synchronously through the spring rod 18. Since the end of the locking block 19 is set with a slope, the locking block 19 can automatically move out of the locking slot 20 through the squeezing action of the slope when it is pulled upward, and when it moves to the next locking slot 20, it will be pushed back into the slot by the spring rod 18, thereby limiting the position of the pressure plate 16 and preventing the pressure plate 16 from moving in the opposite direction and causing the pre-tightening force to loosen.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anchoring device for slope reinforcement, comprising an anchor rod (1), wherein the anchor rod (1) is a hollow structure, characterized in that, Also includes: The anchor post (3) has multiple inclined holes (2) evenly opened on the outer periphery of the anchoring end of the anchor rod (1). The anchor post (3) is inserted into the inclined hole (2). The anchor post (3) is used to extend outward after the anchor rod (1) is inserted into the slope soil to increase the stability of the anchor rod (1). An automatic pre-tightening mechanism is used to automatically apply a pre-tightening force to the anchor rod (1) when the anchoring agent is injected into the anchor rod (1); The automatic pre-tightening mechanism includes a pad (8), which is sleeved on the outside of the anchor rod (1) for contact with the surface soil of the slope.

2. The anchoring device for slope reinforcement according to claim 1, characterized in that, The anchor rod (1) is equipped with a pressing mechanism that pushes multiple locking pins (3) outward. The pressing mechanism includes multiple conical protrusions (5) that are slidably installed inside the anchor rod (1). The conical protrusions (5) correspond to the locking pins (3) and multiple connecting rods (6) are fixedly installed between the multiple conical protrusions (5).

3. The anchoring device for slope reinforcement according to claim 2, characterized in that, A magnetic column (4) is fixedly installed on the inner wall of the anchoring end of the anchor rod (1). The magnetic column (4) is set through the outer surface of multiple conical protrusions (5), and multiple locking posts (3) and magnetic column (4) are magnetically attracted to each other.

4. An anchoring device for slope reinforcement according to claim 3, characterized in that, The automatic pre-tightening mechanism also includes a fixed plate (9), which is fixedly installed on the outside of the anchor rod (1). An extension assembly is installed between the fixed plate (9) and the pad (8). The extension assembly includes multiple first rotating plates (10) rotatably installed on the outer periphery of the pad (8). Multiple second rotating plates (11) are rotatably installed on the outer periphery of the fixed plate (9). The ends of the first rotating plates (10) and the second rotating plates (11) are hinged to each other, and the hinge point of the first rotating plates (10) and the second rotating plates (11) is inclined towards the anchor rod (1). A pressure plate (16) is sleeved on the outer periphery of the anchor rod (1). The outer periphery of the pressure plate (16) can abut against the side of the first rotating plate (10) near the anchor rod (1). A transmission assembly is installed between the inside of the anchor rod (1) and the pressure plate (16).

5. An anchoring device for slope reinforcement according to claim 4, characterized in that, The transmission assembly includes a movable plug (12) slidably installed inside the anchor rod (1), a top rod (13) is inserted through the free end of the anchor rod (1), one end of the top rod (13) is fixedly installed on the outer surface of the movable plug (12), and a top plate (14) is fixedly installed on the other end of the top rod (13). Multiple tie rods (15) are fixedly installed between the top plate (14) and the outer surface of the pressure plate (16).

6. An anchoring device for slope reinforcement according to claim 5, characterized in that, A compression spring (17) is fitted on the outer surface of the top rod (13), and the compression spring (17) is located between the movable plug (12) and the inner wall of the free end of the anchor rod (1).

7. An anchoring device for slope reinforcement according to claim 6, characterized in that, An injection pipe (7) is fixedly installed through the outer surface of the free end of the anchor rod (1), and the outlet of the injection pipe (7) is located below the movable plug (12).

8. An anchoring device for slope reinforcement according to claim 7, characterized in that, Multiple sets of one-way limiting components are installed between the pressure plate (16) and the anchor rod (1). The one-way limiting components include a spring rod (18) fixedly installed on the upper surface of the pressure plate (16). A locking block (19) is fixedly installed at the free end of the spring rod (18). Multiple slots (20) matching the locking block (19) are evenly opened on the outer periphery of the anchor rod (1) near the pressure plate (16) along its axial direction. The locking block (19) can be inserted into any slot (20).

9. An anchoring device for slope reinforcement according to claim 8, characterized in that, The top of the card block (19) near the anchor rod (1) is set with an inclined surface, so that the card block (19) can automatically be inserted into the next card slot (20) through the inclined surface when it moves upward.

10. An anchoring device for slope reinforcement according to claim 4, characterized in that, The upper surface of the fixed plate (9) is provided with multiple through holes (21) for the pull rod (15) to pass through.

Images