A ground reinforcement system

Abstract

The application discloses a foundation reinforcing system, which comprises a carrier plate, an anchor rod vertically inserted into the carrier plate, a drill bit or a pouring head installed at the bottom of the anchor rod through a locking device, a grouting hole axially formed in the anchor rod, a valve plate used for closing the grouting hole installed at the position close to the bottom of the anchor rod, and an action device installed on the anchor rod, wherein the action device is used for releasing the closing state of the valve plate on the grouting hole when the pouring head is installed at the bottom of the anchor rod. The locking device cooperated with the action device can efficiently and conveniently realize the quick switching of the drill bit and the pouring head at the bottom of the anchor rod, saves time and effort, and can release the closing state of the grouting hole after the pouring head is installed, so as to facilitate the subsequent reinforcing operation of the foundation.

Description

Technical Field

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

[0002] When existing foundations show cracks or seepage, grouting reinforcement is usually used. Holes are drilled at the cracks or seepage points, and then cement mortar is injected into the grouting holes through pipes. The cement mortar fills into the soil layer along the cracks. After the cement mortar solidifies, it forms a composite foundation with the foundation. This not only seals the cracks but also improves the bearing capacity of the foundation, thus achieving the purpose of foundation reinforcement.

[0003] In the prior art, invention patent CN114892636A discloses a building foundation reinforcement system, relating to the construction field. This patent utilizes a drill bit to drill a grouting hole. After the drill bit is removed and replaced with a grouting head, the grouting head can enter the grouting hole along the original path. During grouting, driven by linear and reciprocating motion components, the grouting head can move gradually upwards while continuously moving up and down. This allows for slow filling from the bottom up along the soil depth, ensuring sufficient filling of gaps at all depths. Simultaneously, the continuous up-and-down movement of the grouting head during filling creates an impact force on the cement mortar inside the grouting hole, thereby increasing the grouting pressure and allowing the cement mortar to expand more fully and densely along the cracks, effectively improving the grouting effect.

[0004] However, the aforementioned patented technology does not disclose the specific connection method between the hollow shaft and the drill bit or injection head, and the traditional method is mostly fixed by bolting, which is cumbersome and inconvenient when switching drill bits or injection heads. Therefore, it needs to be improved. Summary of the Invention

[0005] To address the technical problems mentioned in the background section, the present invention provides a foundation reinforcement system.

[0006] The present invention is achieved by the following technical solution: a foundation reinforcement system, including a carrier plate, on which anchor rods are vertically inserted. A drill bit or grouting head is installed at the bottom of the anchor rod through a locking device. A grouting hole is axially opened inside the anchor rod. A valve plate for sealing the grouting hole is installed near the bottom of the grouting hole. An actuating device is installed on the anchor rod. When the grouting head is installed at the bottom of the anchor rod, the actuating device is used to release the valve plate from sealing the grouting hole.

[0007] As a further improvement to the above solution, the bottom of the carrier plate is equipped with multiple casters.

[0008] As a further improvement to the above solution, an auxiliary ring is installed on the top of the carrier plate via a bracket. The auxiliary ring allows the anchor rod to pass through axially, and the carrier plate has a through hole for the anchor rod to pass through axially.

[0009] As a further improvement to the above solution, the locking device includes a docking ring that is sleeved and fixed to the outside of the anchor rod, and two first slots are opened opposite each other on the bottom ring surface of the docking ring;

[0010] The drill bit is fixed with a docking plate at the top, and both the top of the docking plate and the top of the injection head are provided with a first locking block that mates with the first locking slot.

[0011] As a further improvement to the above solution, a first docking groove is axially formed on the outer peripheral sidewall of the docking ring, and a second docking groove is axially formed on the outer peripheral side of the docking disc. The same docking block is inserted into both the first docking groove and the second docking groove.

[0012] As a further improvement to the above solution, a second slot is provided on the wall of both the first docking groove and the second docking groove, and a second block is provided on both sides of the docking block along the length direction to cooperate with the corresponding second slot.

[0013] As a further improvement to the above solution, the actuating device includes a pressure rod axially inserted inside the ring wall of the docking ring, the bottom of which extends into the first slot.

[0014] A movable arm is radially inserted into the outer wall of the anchor rod, and a through groove is opened on the outer wall of the anchor rod for the valve plate to move. The valve plate is connected to the movable arm, and a transmission component is provided inside the ring wall of the docking ring.

[0015] When the first locking block on the injection head engages with the first locking groove to press the pressure rod upward, the transmission assembly guides the moving arm to move the valve plate toward the inside of the ring wall of the docking ring, thereby releasing the closure of the grouting hole.

[0016] As a further improvement to the above solution, the transmission assembly includes a pressure block fixed to the top of the pressure rod, and a movable arm that can be radially moved inside the ring wall of the docking ring. The movable arm has a first inclined groove that slides and presses against the pressure block. When the pressure block moves upward and presses against the first inclined groove, it forces the movable arm to move away from the grouting hole.

[0017] The number of first locking blocks on the top of the docking plate is single, and it is located on the side away from the top of the valve plate;

[0018] The number of first locking blocks at the top of the infusion head is two, and the two first locking blocks are arranged opposite each other on both sides of the top of the infusion head.

[0019] As a further improvement to the above solution, one end of the valve plate is connected to the moving arm via a coil and a coil spring, and the other end is connected to the inner wall of the docking ring via a telescopic rod. A first spring is sleeved on the outside of the telescopic rod. When the valve plate closes the grouting hole, the first spring is in a non-deformed state. A plate placement groove for the moving arm to be inserted is opened on the hole wall away from the through groove. The valve plate can be bent and rotated downwards, and the maximum bending angle is less than ninety degrees.

[0020] As a further improvement to the above solution, a movable block parallel to the movable arm is elastically arranged inside the ring wall of the docking ring. A pressure rod parallel to the pressure rod is provided at the top of the pressure block. The pressure rod passes through the first inclined groove and is fixed with a locking rod. An insertion hole for the locking rod is opened at the bottom of the movable block. The opening of the insertion hole has a slope that slides and engages with the locking rod. A locking hole is opened inside the movable block that connects to the top of the insertion hole and engages with the locking rod. A pull rod parallel to the telescopic rod is provided at the end of the movable block away from the anchor rod. One end of the pull rod extends into the first docking groove, and a second spring is sleeved on the outside of the pull rod. When the locking rod presses upward against the slope to the insertion hole, the second spring is in a compressed deformation state.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The foundation reinforcement system of the present invention, through the locking device and the action device, can efficiently and conveniently switch between the drill bit and the grouting head at the bottom of the anchor rod, saving time and effort. Moreover, after the grouting head is installed, the closure of the grouting hole can be released to facilitate subsequent foundation reinforcement work. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention when the drill bit is installed as a whole;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention when the injection head is installed as a whole;

[0025] Figure 3 for Figure 1 A schematic diagram of the drill bit and docking plate in an uninstalled state;

[0026] Figure 4 for Figure 3 A cross-sectional structural diagram of the drill bit installed at the bottom of the anchor bolt;

[0027] Figure 5 for Figure 2 A schematic diagram of the injection head in its non-installed state;

[0028] Figure 6 for Figure 2A cross-sectional view of the bottom connecting ring of the middle anchor bolt in its non-installed state;

[0029] Figure 7 for Figure 5 A cross-sectional view of the injection head in its non-installed state;

[0030] Figure 8 for Figure 2 A cross-sectional view of the middle docking block in its non-installation state;

[0031] Figure 9 for Figure 6 Enlarged structural diagram at point A;

[0032] Figure 10 for Figure 2 A cross-sectional view of the grouting head installed at the bottom of the anchor bolt and in the grouting state;

[0033] Figure 11 for Figure 10 Enlarged structural diagram at point B.

[0034] Explanation of key symbols:

[0035] 1. Carrier plate; 2. Anchor bolt; 3. Drill bit; 4. Grouting head; 5. Connecting ring; 6. Connecting disc; 7. Connecting block; 8. Auxiliary ring; 9. Moving wheel; 10. First slot; 11. First locking block; 12. First connecting groove; 14. Second slot; 15. Second locking block; 16. Valve plate; 17. Plate placement groove; 18. Moving arm; 19. Reel; 20. Telescopic rod; 21. First inclined groove; 22. Pressure bearing rod; 23. Pressure applying block; 24. Pressure applying rod; 25. Locking rod; 26. Moving block; 27. Insertion hole; 28. Locking hole; 29. ​​Tie rod; 30. Through groove; 31. Second connecting groove; 32. Grouting hole. Detailed Implementation

[0036] 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.

[0037] Please combine Figures 1 to 11 The foundation reinforcement system includes a carrier plate 1, on which anchor rods 2 are vertically inserted. A drill bit 3 or a grouting head 4 is installed at the bottom of the anchor rod 2 via a locking device. A grouting hole 32 is axially opened inside the anchor rod 2. A valve plate 16 is installed near the bottom of the grouting hole 32 to seal the grouting hole 32. An actuating device is installed on the anchor rod 2. When the grouting head 4 is installed at the bottom of the anchor rod 2, the actuating device is used to release the valve plate 16 from the sealing state of the grouting hole 32.

[0038] Multiple casters 9 are installed at the bottom of the carrier plate 1.

[0039] An auxiliary ring 8 is installed on the top of the carrier plate 1 via a bracket. The auxiliary ring 8 allows the anchor rod 2 to pass through axially. The carrier plate 1 has a through hole for the anchor rod 2 to pass through axially.

[0040] The locking device includes a docking ring 5 that is sleeved and fixed to the outside of the anchor rod 2, and two first slots 10 are opened on the bottom ring surface of the docking ring 5.

[0041] The drill bit 3 is fixed with a docking plate 6 at the top. Both the top of the docking plate 6 and the top of the injection head 4 are provided with a first locking block 11 that cooperates with the first locking groove 10.

[0042] A first docking groove 12 is axially formed on the outer peripheral side wall of the docking ring 5, and a second docking groove 31 is axially formed on the outer peripheral side of the docking plate 6. The same docking block 7 is inserted into both the first docking groove 12 and the second docking groove 31.

[0043] The first docking groove 12 and the second docking groove 31 are both provided with second slots 14, and the docking block 7 is provided with second blocks 15 on both sides of the length direction to cooperate with the corresponding second slots 14.

[0044] The actuating device includes a pressure rod 22 axially inserted inside the ring wall of the docking ring 5, with the bottom of the pressure rod 22 extending into the first slot 10.

[0045] A movable arm 18 is radially inserted into the outer wall of the anchor rod 2. A through groove 30 is opened on the outer wall of the anchor rod 2 for the valve plate 16 to move. The valve plate 16 is connected to the movable arm 18. A transmission component is provided inside the ring wall of the docking ring 5.

[0046] When the first locking block 11 on the injection head 4 is engaged into the first locking groove 10 to press the pressure rod 22 upward, the transmission assembly is used to guide the moving arm 18 to move the valve plate 16 toward the inside of the ring wall of the docking ring 5 to release the closed state of the grouting hole 32.

[0047] The transmission assembly includes a pressure rod 22 with a pressure block 23 fixed on the top. A movable arm 18 is radially movable inside the ring wall of the docking ring 5. The movable arm 18 has a first inclined groove 21 that slides and presses against the pressure block 23. When the pressure block 23 moves upward and presses against the first inclined groove 21, it forces the movable arm 18 to move away from the grouting hole 32.

[0048] The number of first locking blocks 11 on the top of the docking plate 6 is single, and they are located on the side away from the top of the valve plate 16.

[0049] There are two first locking blocks 11 at the top of the injection head 4, and the two first locking blocks 11 are arranged opposite each other on both sides of the top of the injection head 4.

[0050] One end of the valve plate 16 is connected to the movable arm 18 via a roller 19 and a coil spring, and the other end is connected to the inner wall of the docking ring 5 via a telescopic rod 20. A first spring is sleeved on the outer side of the telescopic rod 20. When the valve plate 16 closes the grouting hole 32, the first spring is in a non-deformed state. A plate placement groove 17 for the movable arm 18 to be inserted is opened on the hole wall of the grouting hole 32 on the side away from the through groove 30. The valve plate 16 can be bent and rotated downwards, and the maximum bending angle is less than ninety degrees.

[0051] The inner wall of the docking ring 5 is elastically provided with a moving block 26 parallel to the moving arm 18. The top of the pressure block 23 is provided with a pressure rod 24 that is offset parallel to the pressure rod 22. The pressure rod 24 passes through the first inclined groove 21 and is fixed with a locking rod 25. The bottom of the moving block 26 is provided with an insertion hole 27 for the locking rod 25 to be inserted. The opening of the insertion hole 27 has a slope that is in contact with the locking rod 25 for sliding cooperation. The inside of the moving block 26 is provided with a locking hole 28 that connects to the top of the insertion hole 27 and is used for the locking rod 25 to be engaged. The end of the moving block 26 away from the anchor rod 2 is provided with a pull rod 29 parallel to the telescopic rod 20. One end of the pull rod 29 extends into the first docking groove 12, and a second spring is sleeved on the outside of the pull rod 29. When the locking rod 25 presses upward to the slope to the insertion hole 27, the second spring is in a compressed deformation state.

[0052] The working principle of this embodiment:

[0053] In this embodiment, when assembling the drill bit 3 (with the grouting hole 32 in its initial state of being completely closed by the valve plate 16), the only first locking block 11 on the top of the docking plate 6 is inserted into the first locking groove 10 on the docking ring 5 away from the valve plate 16, and then the two second locking blocks 15 on the docking block 7 are respectively inserted into the two second locking grooves 14 to achieve mutual locking and fixation between the docking ring 5 and the docking plate 6, thus completing the installation of the drill bit 3 at the bottom of the anchor rod 2.

[0054] Then, the drilling bit 3 of this system can be used to drill the injection hole. After drilling, the drilling bit 3 is removed, and then the injection head 4 is assembled. The top of the injection head 4 is inserted into the two first slots 10 by two first locking blocks 11 respectively. Then, the two second locking blocks 15 on the docking block 7 are inserted into the two second slots 14 respectively to achieve mutual locking and fixation between the docking ring 5 and the injection head 4, thus completing the installation of the injection head 4 at the bottom of the anchor rod 2.

[0055] When the top of the corresponding first locking block 11 is engaged in the first locking groove 10, it will press the pressure rod 22. The pressure rod 22 will drive the pressure block 23 to press the first inclined groove 21, forcing the moving arm 18 to move away from the grouting hole 32, so as to compress the telescopic rod 20 and the first spring, thereby releasing the valve plate 16 from the closed state of the grouting hole 32. During this period, the pressure block 23 will drive the locking rod 25 to move upward and press the slope through the pressure rod 24. This will force the moving block 26 to move away from the grouting hole 32 with the pull rod 29 (the second spring is compressed and deformed), and will also guide the locking rod 25 to gradually enter the insertion hole 27 so that the position of the locking rod 25 corresponds to the position of the hole 28. Then the second spring force is released, which will drive the moving block 26 to move in the opposite direction, so that the locking rod 25 is engaged in the hole 28, so as to lock and fix the position of the pressure block 23 after it moves upward, thereby keeping the valve plate 16 in the open state.

[0056] During the grouting operation, the grouting equipment is connected to the top of the anchor rod 2, and the anchor rod 2 is inserted into the corresponding grouting hole. The grout flows down from the grouting hole 32 to the grouting head 4 and then into the grouting hole, so that the cement mortar flows into the cracks in the foundation and expands outward, thus completing the reinforcement of the foundation.

[0057] When maintenance is required after use, simply pull the lever 29 outward to return the locking lever 25 to the socket 27, and then remove the first locking block 11 from the first locking groove 10 to complete the separation and disassembly of the filling head 4 and the docking ring 5.

[0058] 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 foundation reinforcement system, characterized in that, The device includes a carrier plate, on which anchor rods are vertically inserted. A drill bit or grouting head is installed at the bottom of the anchor rod via a locking device. A grouting hole is axially opened inside the anchor rod. A valve plate is installed near the bottom of the grouting hole to seal the grouting hole. An actuating device is installed on the anchor rod. When the grouting head is installed at the bottom of the anchor rod, the actuating device is used to release the valve plate from sealing the grouting hole. The locking device includes a docking ring that is sleeved and fixed to the outside of the anchor rod, and two first slots are opened opposite each other on the bottom ring surface of the docking ring; The drill bit is fixed with a docking plate at the top, and both the top of the docking plate and the top of the injection head are provided with a first locking block that mates with the first locking slot. The outer peripheral sidewall of the docking ring is provided with a first docking groove, and the outer peripheral sidewall of the docking plate is provided with a second docking groove. The same docking block is inserted into the first docking groove and the second docking groove. The first and second docking grooves are each provided with a second slot, and the docking block is provided with a second block on both sides of its length direction to cooperate with the corresponding second slot. The actuating device includes a pressure rod axially inserted inside the ring wall of the docking ring, with the bottom of the pressure rod extending into the first slot. A movable arm is radially inserted into the outer wall of the anchor rod, and a through groove is opened on the outer wall of the anchor rod for the valve plate to move. The valve plate is connected to the movable arm, and a transmission component is provided inside the ring wall of the docking ring. When the first locking block on the injection head engages with the first locking groove to press the pressure rod upward, the transmission assembly guides the moving arm to move the valve plate toward the inside of the ring wall of the docking ring to release the closure of the grouting hole. The transmission assembly includes a pressure block fixed to the top of the pressure rod, and a movable arm that can be radially moved inside the ring wall of the docking ring. The movable arm has a first inclined groove that slides and presses against the pressure block. When the pressure block moves upward and presses against the first inclined groove, it forces the movable arm to move away from the grouting hole. The number of first locking blocks on the top of the docking plate is single, and it is located on the side away from the top of the valve plate; The number of first locking blocks at the top of the infusion head is two, and the two first locking blocks are arranged opposite each other on both sides of the top of the infusion head; One end of the valve plate is connected to the moving arm via a coil and a coil spring, and the other end is connected to the inner wall of the docking ring via a telescopic rod. A first spring is sleeved on the outside of the telescopic rod. When the valve plate closes the grouting hole, the first spring is in a non-deformed state. A plate placement groove for the moving arm to be inserted is opened on the hole wall away from the through groove. The valve plate can be bent and rotated downwards, and the maximum bending angle is less than 90 degrees.

2. The foundation reinforcement system as described in claim 1, characterized in that, The bottom of the carrier plate is equipped with multiple casters.

3. The foundation reinforcement system as described in claim 1, characterized in that, An auxiliary ring is mounted on the top of the carrier plate via a bracket. The auxiliary ring allows the anchor rod to pass through axially. The carrier plate has through holes for the anchor rod to pass through axially.

4. The foundation reinforcement system as described in claim 1, characterized in that, The inner wall of the docking ring is elastically provided with a moving block parallel to the moving arm. The top of the pressure block is provided with a pressure rod that is offset parallel to the pressure rod. The pressure rod passes through the first inclined groove and is fixed with a locking rod. The bottom of the moving block is provided with an insertion hole for the locking rod to be inserted. The opening of the insertion hole has a slope that slides and engages with the locking rod. The inside of the moving block is provided with a locking hole that connects to the top of the insertion hole and engages with the locking rod. The end of the moving block away from the anchor rod is provided with a pull rod parallel to the telescopic rod. One end of the pull rod extends into the first docking groove, and a second spring is sleeved on the outside of the pull rod. When the locking rod presses upward against the slope to the insertion hole, the second spring is in a compressed deformation state.

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