A directional grouting plugging system

Abstract

The application discloses a directional grouting plugging system, which comprises a plurality of anchor rods capable of grouting and reinforcing a slope body, the anchor rods are provided with grouting flow channels in the axial direction, one end of each anchor rod is inserted into the slope body and is provided with an outlet for allowing slurry to be injected into each fissure in the slope body in a directional manner, and the other end of each anchor rod is provided with an inlet for allowing the slurry to enter the grouting flow channel. When the anchor rods are inserted into the slope body, the anchor rods and the slope body are locked and fixed through positioning devices. The positioning devices added to the anchor rods can conveniently and efficiently realize the locking and fixing of the anchor rods inserted into the slope and the slope surface, time and labor are saved, and the construction process of plugging the fissures in the slope body in a directional manner is not affected.

Description

Technical Field

[0001] This invention relates to the field of grouting technology, and more particularly to a directional grouting sealing system. Background Technology

[0002] Since the 1980s, grouting has become an important and effective means of water control in coal mines. Many coal groups have established professional grouting teams to manage various water hazards in mines or reinforce unfavorable rock masses. These teams are used for pre-grouting well drilling, grouting of the well wall or behind the wall, sealing water inflow in tunnels and chambers, water sealing and reinforcement of soft rock or soft soil, and managing major water inrush or flooding accidents.

[0003] After a water hazard occurs in a coal mine, once the water inrush point, water source, and water inrush channel are known, conventional grouting drilling can be carried out. After the aggregate is inserted, the prepared grout is pumped into the voids, fissures, or roadways of the underground rock strata, forcing it to diffuse, solidify, and harden. This gives the rock strata higher strength, density, and impermeability, thereby achieving the function of sealing off and cutting off the water supply source and reinforcing the water-resistant layer.

[0004] The working principle of a directional grouting sealing system is to inject specific grouting materials into the underground space that needs to be filled or sealed, so as to achieve the purpose of consolidation, reinforcement, or improvement of engineering geological conditions of soil or rock. The grouting materials can be cement slurry, polymers, resins, etc., and the specific selection depends on the required engineering requirements and geological conditions.

[0005] Before grouting, after the anchor rods are inserted into the anchor holes on the slope, the anchor rods are usually positioned and fixed on the slope by manually tightening the screws one by one to ensure that the subsequent grouting operation can be carried out on the slope. This method is time-consuming, labor-intensive, inconvenient, and has low construction efficiency, which affects the construction progress of directional grouting to seal cracks in the slope. Summary of the Invention

[0006] To address the technical problems mentioned in the background section, the present invention provides a directional grouting sealing system.

[0007] This invention is achieved using the following technical solution: a directional grouting sealing system, comprising a plurality of anchor rods capable of grouting and reinforcing a slope, wherein each anchor rod has an axially formed grouting channel inside, one end of each anchor rod is inserted into the slope and has an output port for grout to be directionally injected into various cracks within the slope through the grouting channel, and the other end of each anchor rod has an input port for grout to be input into the grouting channel; when the anchor rod is inserted into the slope, the anchor rod and the slope are locked and fixed together by a positioning device.

[0008] As a further improvement to the above solution, anchor holes for inserting anchor rods are pre-drilled on the slope.

[0009] As a further improvement to the above solution, the other end of the anchor bolt is provided with a protective sleeve that can seal the grouting channel inlet.

[0010] As a further improvement to the above solution, the anchor rod and the protective sleeve are connected by a thread.

[0011] As a further improvement to the above solution, the positioning device includes a first cylinder sleeved on the outside of the anchor rod, with one end open and the other end closed, and at least one first connecting rod axially arranged thereon. A first connecting groove is formed on the slope surface of the slope.

[0012] The first cylinder is provided with an actuating mechanism. When the first cylinder touches and presses against the slope, the actuating mechanism can guide the first docking rod to engage with the first docking groove.

[0013] As a further improvement to the above solution, the actuating mechanism includes a second limiting groove axially disposed inside the annular wall of the first cylinder, a second limiting block slidably engaged in the second limiting groove, a rod slidably inserted on the second limiting block perpendicular to its moving direction, a second cylinder rotatably inserted into the first cylinder, a first connecting rod slidably engaged at one end of the second cylinder, a second connecting rod inserted at the other end of the second cylinder, a third limiting block disposed on the outer side of the second connecting rod, a third limiting groove spirally formed along the axial direction of the inner wall of the second cylinder and slidably engaged with the third limiting block, and a slot for inserting the rod disposed at one end of the second connecting rod.

[0014] As a further improvement to the above solution, a first spring is provided between the end of the first docking rod and the inner wall of the second cylinder.

[0015] As a further improvement to the above solution, the action mechanism also includes a first limiting groove disposed inside the first cylinder, a first limiting block is slidably engaged in the first limiting groove, a first connecting rod perpendicular to the insert rod is rotatably inserted on the first limiting block, and one end of the insert rod is rotatably sleeved on one end of the first connecting rod.

[0016] By guiding the first limiting block to move from one end away from the slope to the other end on the first limiting groove, the insert rod can be inserted into the slot first, and then the slot can be moved together towards the slope by the insert rod.

[0017] As a further improvement to the above solution, the first limiting groove includes a radial segment, an arc segment and an axial segment connected in sequence, wherein the radial segment is located on the side of the first limiting groove away from the slope.

[0018] As a further improvement to the above solution, a swing arm is rotatably provided inside the first cylinder, and a fourth limiting groove is provided axially on the outer side of the swing arm. A fourth limiting block is slidably engaged in the fourth limiting groove, and the fourth limiting block is rotatably sleeved on the outer side of the first connecting rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The directional grouting sealing system of the present invention, by adding a positioning device to the anchor rod, can conveniently and efficiently realize the locking and fixing between the anchor rod inserted on the slope and the slope surface, saving time and effort, and avoiding affecting the construction process of directional grouting sealing cracks in the slope.

[0021] 2. By setting up the mutual cooperation between the first cylinder and the various structures in the action mechanism, the anchor rod can be locked and positioned on the slope in a convenient, efficient and stable manner.

[0022] 3. By setting up structures such as a ring, a third link, a rack, and gears, the swing of the pendulum can be driven.

[0023] 4. By setting up structures such as worm gear, worm wheel, second connecting rod, and third cylinder, the first cylinder can be in a non-sleeved fixed state on the anchor rod, so that the anchor rod, the first cylinder and the slope form a whole, and the anchor rod is locked and fixed on the slope surface, which is convenient and reliable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the overall structure on the slope surface;

[0026] Figure 3 for Figure 2 A structural schematic diagram of components such as the first connecting rod;

[0027] Figure 4 for Figure 2 Schematic diagram of the structure of the first limiting groove;

[0028] Figure 5 for Figure 2 Enlarged structural diagram at point A;

[0029] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0030] Figure 7 for Figure 2 A cross-sectional view of the central pendulum rod in its non-oscillating state;

[0031] Figure 8 for Figure 2 A cross-sectional view of the central pendulum during its swing phase.

[0032] Explanation of key symbols:

[0033] 1. Slope; 2. Anchor hole; 3. Anchor bolt; 4. First cylinder; 5. Ring; 6. First limiting block; 7. First limiting groove; 71. Radial section; 72. Arc section; 73. Axial section; 8. First connecting rod; 9. Insert rod; 10. Second limiting groove; 11. Second limiting block; 12. Slot; 13. Second connecting rod; 14. Second cylinder; 15. Third limiting block; 16. Third limiting groove; 17. First connecting rod; 18. First connecting groove; 19. Swing rod; 20. Fourth limiting groove; 21. Fourth limiting block; 22. Gear; 23. Rack; 24. Third connecting rod; 25. Worm gear; 26. Worm wheel; 27. Third cylinder; 28. Second connecting rod; 29. ​​Second connecting groove. Detailed Implementation

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] Example 1

[0036] Please combine Figures 1 to 8 The directional grouting sealing system includes several anchor rods 3 that can be used to grout and reinforce the slope 1. Each anchor rod 3 has an axially oriented grouting channel (not shown). One end of the anchor rod 3 is inserted into the slope 1 and has an outlet (not shown) for grout to be directionally injected into various cracks within the slope 1 through the grouting channel. The other end of the anchor rod 3 has an inlet (not shown) for grout to enter the grouting channel. Anchor holes 2 are pre-drilled on the slope 1 for the anchor rods 3 to be inserted.

[0037] When the anchor rod 3 is inserted into the slope 1, the anchor rod 3 and the slope 1 are locked and fixed by the positioning device, which can conveniently complete the pre-fixation of the anchor rod 3 in the anchor hole 2 of the slope 1.

[0038] The other end of the anchor bolt 3 is equipped with a protective sleeve that can seal the grouting channel inlet. The protective sleeve can prevent external water from entering before the cement grout has solidified, which would affect the solidification of the cement grout and thus reduce the strength of the slope reinforcement, thereby improving the practicality of the device.

[0039] The anchor bolt 3 and the protective sleeve are connected by threads to facilitate the installation and removal of the protective sleeve at the input port of the anchor bolt 3.

[0040] The positioning device includes a first cylinder 4 sleeved on the outside of the anchor rod 3. In this embodiment, the first cylinder 4 is sleeved and fixed on the outer wall of the anchor rod 3. One end of the first cylinder 4 is open and the other end is closed, and at least one first connecting rod 17 is axially arranged thereon. A first connecting groove 18 is provided on the slope surface of the slope 1.

[0041] The first cylinder 4 is equipped with an actuating mechanism. When the first cylinder 4 presses against the slope 1, the actuating mechanism can guide the first connecting rod 17 and the first connecting groove 18 to engage in a screw connection, thereby achieving the locking and fixing of the anchor rod 3 on the slope 1.

[0042] Specifically, the actuating mechanism includes a second limiting groove 10 axially disposed inside the annular wall of the first cylinder 4, a second limiting block 11 slidably engaged in the second limiting groove 10, a rod 9 slidably inserted on the second limiting block 11 perpendicular to its moving direction, a second cylinder 14 rotatably inserted on the first cylinder 4, a first connecting rod 17 slidably engaged at one end of the second cylinder 14, a second connecting rod 13 inserted at the other end of the second cylinder 14, a third limiting block 15 disposed on the outer side of the second connecting rod 13, a third limiting groove 16 spirally formed on the inner sidewall of the second cylinder 14 along its axial direction and slidably engaged with the third limiting block 15, and a slot 12 for inserting the rod 9 disposed at one end of the second connecting rod 13.

[0043] A first spring is provided between the end of the first connecting rod 17 and the inner wall of the second cylinder 14. When the closed end of the first cylinder 4 touches the slope surface of the slope 1, the elastic force of the first spring can cause the end of the first connecting rod 17 to touch the groove of the first connecting groove 18 so that the two can be effectively screwed together in the future.

[0044] The actuation mechanism also includes a first limiting groove 7 disposed inside the first cylinder 4, a first limiting block 6 slidably engaged in the first limiting groove 7, a first connecting rod 8 perpendicular to the insertion rod 9 rotatably inserted on the first limiting block 6, and one end of the insertion rod 9 rotatably sleeved on one end of the first connecting rod 8.

[0045] By guiding the first limiting block 6 to move from one end away from the slope to the other end on the first limiting groove 7, the insertion rod 9 can be inserted into the slot 12 first, and then the insertion rod 9 can drive the slot 12 to move together towards the slope.

[0046] The first limiting groove 7 includes a radial section 71, an arc section 72 and an axial section 73 connected in sequence. The radial section 71 is located on the side of the first limiting groove 7 away from the slope.

[0047] A swing arm 19 is rotatably mounted inside the first cylinder 4. A fourth limiting groove 20 is axially positioned on the outer side of the swing arm 19. A fourth limiting block 21 is slidably engaged in the fourth limiting groove 20 and is rotatably sleeved on the outer side of the first connecting rod 8. The fourth limiting block 21 and the fourth limiting groove 20 provide a certain clearance space for the swing arm 19 to drive the deflection of the first connecting rod 8, thus avoiding motion interference.

[0048] Furthermore, in this embodiment, a ring 5 is threaded onto the outer side of the first cylindrical body 4, and a third connecting rod 24 is radially arranged on the inner side of the ring 5. A groove is circumferentially formed on the inner side of the ring 5, and the centrifugal end of the third connecting rod 24 is slidably engaged in the groove. A rack 23 parallel to the axial direction of the first cylindrical body 4 is provided at the centripetal end of the third connecting rod 24. A gear 22 cooperating with the rack 23 is concentrically fixed at the swing center of the swing rod 19. The maximum deflection angle of the swing rod 19 is ninety degrees.

[0049] How this embodiment works:

[0050] When it is necessary to lock and fix the anchor rod 3 inserted into the anchor hole 2 on the slope 1, press the closed end of the first cylinder 4 against the slope surface of the slope 1, so that the end of the first connecting rod 17 is aligned with the groove of the first connecting groove 18. At this time, rotate the ring 5, so that the ring 5 drives the rack 23 to move towards the slope surface through the third connecting rod 24. The rack 23 drives the gear 22 to rotate. The gear 22 drives the swing rod 19, which is initially parallel to the axis of the first cylinder 4, to deflect 90 degrees to the radial state. During this period, when the swing rod 19 drives the first limiting block 6 to move on the radial section 71 through the first connecting rod 8, the first connecting rod 8 can be driven to move the first limiting block 6 to the radial section 71. The movable insert rod 9 moves radially and is inserted into the slot 12. When the swing rod 19 drives the first limiting block 6 to slide through the arc section 72 and enter the axial section 73 via the first connecting rod 8, the first connecting rod 8 can drive the slot 12 and the second connecting rod 13 to move axially via the insert rod 9. This causes the third limiting block 15 to continuously rub and squeeze the spiral-shaped third limiting groove 16, thereby forcing the second cylinder 14 to drive the first docking rod 17 to rotate unidirectionally, so that the first docking rod 17 is screwed into the first docking groove 18. This achieves the locking and fixing of the anchor rod 3 on the slope surface of the slope 1 via the first cylinder 4, which is convenient and reliable.

[0051] Example 2

[0052] The difference in this embodiment 2 is that the first cylinder 4 is slidably sleeved on the outside of the anchor rod 3, so the first cylinder 4 and the anchor rod 3 are detachable, saving transportation or storage space when the anchor rod 3 is not in use.

[0053] Specifically, the rocker arm 19 and the gear 22 are inserted and fixed to the same worm gear 25. A third cylinder 27 is radially inserted into the inner circumference of the first cylinder 4. A second docking rod 28 is slidably engaged at the centripetal end of the third cylinder 27. A second spring is provided between the end of the second docking rod 28 and the interior of the third cylinder 27. The second spring allows the second docking rod 28 to effectively abut against the opening of the second docking groove 29, ensuring an effective screw connection between the two. A second docking groove 29 is pre-cut on the outer wall of the anchor rod 3 to screw into the second docking rod 28. A worm wheel 26 that mates with the worm gear 25 is provided at the centrifugal end of the third cylinder 27.

[0054] How this embodiment works:

[0055] When it is necessary to lock and fix the anchor rod 3 inserted in the anchor hole 2 on the slope 1, firstly, the first cylinder 4 is sleeved on the outside of the anchor rod 3 and pushed until it touches the slope surface, so that the end of the first connecting rod 17 is aligned with the groove of the first connecting groove 18. At this time, rotate the ring 5, so that the ring 5 drives the rack 23 to move towards the slope surface through the third connecting rod 24. The rack 23 drives the gear 22 to rotate, and the gear 22 drives the swing rod 19, which is initially parallel to the axis of the first cylinder 4, to deflect 90 degrees to the radial state. During this period, when the swing rod 19 drives the first limiting block 6 to move on the radial section 71 through the first connecting rod 8, When the first connecting rod 8 drives the insert rod 9 to move radially and insert it into the slot 12, and when the swing rod 19 drives the first limiting block 6 to slide through the arc section 72 and enter the axial section 73 through the first connecting rod 8, the first connecting rod 8 can drive the slot 12 and the second connecting rod 13 to move axially through the insert rod 9. This causes the third limiting block 15 to continuously rub and squeeze the spiral-shaped third limiting groove 16, so as to force the second cylinder 14 to drive the first docking rod 17 to rotate unidirectionally, so that the first docking rod 17 is screwed into the first docking groove 18, thereby realizing the mutual locking between the first cylinder 4 and the slope 1.

[0056] At the same time, the rack 23 drives the gear 22 to rotate, which in turn drives the worm wheel 26 and the third cylinder 27 to rotate through the worm 25. This causes the second connecting rod 28 to be screwed into the second connecting groove 29, thus achieving mutual fixation between the first cylinder 4 and the anchor rod 3. This makes the anchor rod 3, the first cylinder 4, and the slope 1 form a whole, completing the locking and fixing of the anchor rod 3 on the slope surface of the slope 1, which is convenient and reliable.

[0057] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A directional grouting sealing system, characterized in that, The system includes several anchor bolts capable of grouting and reinforcing the slope. Each anchor bolt has an axially oriented grouting channel inside. One end of the anchor bolt is inserted into the slope and has an outlet for grout to be directionally injected into various cracks within the slope through the grouting channel. The other end of the anchor bolt has an inlet for grout to be input into the grouting channel. When the anchor bolt is inserted into the slope, it is locked and fixed to the slope by a positioning device. The positioning device includes a first cylinder sleeved on the outside of the anchor rod, with one end of the first cylinder open and the other end closed and at least one first connecting rod axially arranged thereon, and a first connecting groove is provided on the slope surface of the slope. The first cylinder is provided with an actuating mechanism. When the first cylinder touches and presses against the slope, the actuating mechanism can guide the first docking rod to engage with the first docking groove. The actuating mechanism includes a second limiting groove axially disposed inside the annular wall of the first cylinder, a second limiting block slidably engaged in the second limiting groove, a rod slidably inserted on the second limiting block perpendicular to its moving direction, a second cylinder rotatably inserted into the first cylinder, a first connecting rod slidably engaged at one end of the second cylinder, a second connecting rod inserted at the other end of the second cylinder, a third limiting block disposed on the outside of the second connecting rod, a third limiting groove spirally formed on the inner wall of the second cylinder along its axial direction and slidably engaged with the third limiting block, and a slot for inserting the rod disposed at one end of the second connecting rod. The actuation mechanism further includes a first limiting groove disposed inside the first cylinder, a first limiting block being slidably engaged in the first limiting groove, a first connecting rod perpendicular to the insert rod being rotatably inserted on the first limiting block, and one end of the insert rod being rotatably sleeved onto one end of the first connecting rod. The first limiting groove includes a radial segment, an arc segment and an axial segment connected in sequence, wherein the radial segment is located on the side of the first limiting groove away from the slope. A swing arm is rotatably provided inside the first cylinder, and a fourth limiting groove is provided axially on the outer side of the swing arm. A fourth limiting block is slidably engaged in the fourth limiting groove, and the fourth limiting block is rotatably sleeved on the outer side of the first connecting rod. The outer side of the first cylinder is threaded with a ring body, and the inner side of the ring body is radially provided with a third connecting rod. The centripetal end of the third connecting rod is provided with a rack parallel to the axis of the first cylinder body. A gear that cooperates with the rack is concentrically fixed at the swing center of the swing rod. The swing arm and gear are fixed to the same worm gear. A third cylinder is inserted into the radial side of the inner circumference of the first cylinder. A second docking rod is slidably engaged at the centripetal end of the third cylinder. A second docking groove that is screwed into the outer wall of the anchor rod is pre-opened. A worm wheel that cooperates with the worm gear is provided at the centrifugal end of the third cylinder.

2. The directional grouting sealing system as described in claim 1, characterized in that, Anchor holes are pre-drilled on the slope for inserting the anchor rods.

3. The directional grouting sealing system as described in claim 1, characterized in that, The other end of the anchor rod is equipped with a protective sleeve that can seal the grouting channel inlet.

4. The directional grouting sealing system as described in claim 3, characterized in that, The anchor rod and the protective sleeve are connected by threads.

5. The directional grouting sealing system as described in claim 1, characterized in that, A first spring is provided between the end of the first connecting rod and the inner wall of the second cylinder.

6. The directional grouting sealing system as described in claim 1, characterized in that, By guiding the first limiting block to move from one end away from the slope to the other end on the first limiting groove, the insert rod is first inserted into the slot, and then the slot moves together towards the slope via the insert rod.

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