Grouting equipment for cave grouting reinforcement

Abstract

The present application relates to the field of karst cave construction technology and discloses a grouting device for karst cave grouting reinforcement, comprising a crawler vehicle, a bracket, a drilling device, and a grouting device. The bracket is connected to the crawler vehicle. The drilling device comprises a drill rod, a drill bit, and a power mechanism. The drill rod is connected to the bracket, the drill bit is connected to the drill rod, the power mechanism is connected to the bracket, the power mechanism is connected to the drill rod, and the power mechanism is used to drive the drill rod to rotate and drive the drill rod to rise and fall. The drill rod is hollow. The grouting device is connected to the bracket and grouts the karst cave through the drill rod. The present application enables karst cave grouting after drilling is completed, thereby improving the convenience of karst cave drilling and grouting.

Description

Technical Field

[0001] The present application relates to the field of cave construction technology, and in particular to a grouting device for grouting and reinforcement of caves. Background Art

[0002] The karst area is a geological disaster area with a large number of karst caves underground. For projects such as pile foundations, foundation pits, and underground tunnel excavation, the karst caves must be treated first to ensure the safety of construction and use, and to avoid safety accidents such as cave-induced collapse, water leakage, and large-scale collapse of the surrounding area during construction and use.

[0003] At present, the treatment of existing smaller caves is mostly carried out through grouting and filling. After detecting the cave, the construction workers first install drilling equipment on the ground, use the drilling equipment to drill holes in the ground and connect the underground cave, and then install grouting equipment. Use the grouting equipment to pour concrete slurry into the cave. After the concrete slurry solidifies, a high-strength consolidated body is formed, which then plays a role in supporting and reinforcing the cave.

[0004] Regarding the above-mentioned related technologies, the inventors found that after the construction workers completed the drilling using the drilling equipment, they needed to install the grouting equipment to grout the cave, which resulted in a long pre-grouting preparation time and a relatively cumbersome operation during the drilling and grouting process of the cave. Summary of the Invention

[0005] In order to alleviate the problem of complicated operations during the drilling and grouting process of caves, the present application provides a grouting equipment for cave grouting reinforcement.

[0006] The present application provides a grouting device for grouting and reinforcement of a cave, which adopts the following technical solution:

[0007] A grouting device for grouting and reinforcing a karst cave comprises a crawler vehicle, a bracket, a drilling device and a grouting device, wherein the bracket is connected to the crawler vehicle, the drilling device comprises a drill rod, a drill bit and a power mechanism, the drill rod is connected to the bracket, the drill bit is connected to the drill rod, the power mechanism is connected to the bracket, the power mechanism is connected to the drill rod, the power mechanism is used to drive the drill rod to rotate and drive the drill rod to rise and fall, the drill rod is hollow, the grouting device is connected to the bracket, and the grouting device grouts into the karst cave through the drill rod.

[0008] By adopting the above technical solution, when encountering a smaller cave, the construction workers first move the crawler vehicle to the ground above the mine cave, and then start the power mechanism. The power mechanism drives the drill bit to rotate and drive the drill bit downward to drill through the ground. Then, the grouting device is started. The concrete slurry in the concrete transport vehicle is extracted through the grouting device, and then the hollow drill rod is used to supply it into the cave. There is no need to install additional grouting equipment to grout the cave, which improves the convenience of cave drilling and grouting.

[0009] Preferably, the power mechanism includes a lifting plate, a rotating sleeve, a lifting assembly and a rotating assembly, the lifting plate is slidably connected to the bracket, the lifting assembly is connected to the bracket, the lifting assembly is connected to the lifting plate to drive the lifting plate to rise and fall, the rotating sleeve is rotatably connected to the lifting plate, the rotating assembly is connected to the lifting plate, and the rotating assembly is connected to the rotating sleeve to drive the rotating sleeve to rotate.

[0010] By adopting the above technical solution, the drill rod is connected to the rotating sleeve, and the rotating sleeve is driven to rotate by the rotating assembly to drive the drill rod to rotate, thereby driving the drill bit to rotate, and then the drill bit is lowered under the drive of the lifting assembly to achieve drilling processing on the ground.

[0011] Preferably, the drill rod includes multiple connecting rods, one end of each connecting rod is coaxially fixedly connected to a threaded sleeve, the other end of each connecting rod is provided with an internal thread that matches the threaded sleeve, the side wall of each connecting rod is threadedly connected to a countersunk bolt, each threaded sleeve is provided with a threaded hole that matches the countersunk bolt, and the rotating sleeve is connected to one of the connecting rods to drive the connecting rod to rotate.

[0012] By adopting the above technical solution, during the process of drilling a hole in the ground, after a section of the connecting rod is drilled into the ground along with the drill bit, the lifting assembly is used to drive the lifting plate and the rotating sleeve to move upward, and then a new section of the connecting rod is installed in the connecting rod drilled into the ground using a threaded sleeve and fixed with a countersunk bolt. The new section of the connecting rod is then connected to the rotating sleeve, and then drilling can continue. By installing the connecting rod section by section, the depth of the drill hole can be gradually increased, so that construction workers can increase the length of the drill rod according to the depth of the cave, thereby improving the flexibility of the drilling device.

[0013] Preferably, the grouting device includes a connecting box, a sealing mechanism and multiple sections of feed pipes, the connecting box is coaxially fixedly connected to the connecting rod located at the lowest end, the drill bit is coaxially fixedly connected to the end of the connecting box away from the connecting rod, a slurry outlet is provided on the connecting box, the sealing mechanism is connected in the connecting box, the sealing mechanism is used to control the opening or closing of the slurry outlet, the multiple sections of the feed pipes are arranged in a one-to-one correspondence with the multiple sections of the connecting rods, the feed pipes are connected to the corresponding connecting rods, each section of the feed pipes is connected to the corresponding connecting rods, the multiple sections of the feed pipes are connected to each other, the feed pipes located at the lowest part pass through the connecting rod and extend into the connecting box.

[0014] By adopting the above technical solution, a feed pipe is set inside each connecting rod. Before adding connecting rods section by section, the feed pipes in the two adjacent connecting rods are first connected together by threads. After the cave is opened, the slurry outlet is first opened by using a sealing mechanism, and then the concrete slurry is fed into the feed pipe. After the cement slurry passes through the feed pipe and flows out from the slurry outlet, the grouting treatment of the cave can be realized.

[0015] Preferably, a pushing mechanism is provided in the connecting box, and the pushing mechanism includes a driving assembly and two pushing wheels. The two pushing wheels are both rotatably connected in the connecting box, and the feeding pipe is clamped between the two pushing wheels. The driving assembly is connected in the connecting box, and the two pushing wheels are both connected to the driving assembly. The driving assembly drives the two pushing wheels to rotate synchronously in opposite directions.

[0016] By adopting the above technical solution, the feed pipe is clamped by two push wheels, and after the discharge port is opened, the drive assembly is started, and the drive assembly is used to drive the two push wheels to rotate synchronously in opposite directions. The feed pipe can be extended from the slurry discharge port and extended for a distance under the push of the two push wheels, so that the slurry can be supplied to a position close to the edge of the cave, thereby improving the uniformity of the cave grouting and ensuring the strength of the cement slurry at the edge of the cave after solidification.

[0017] Preferably, the drive assembly includes a second motor and two second gears, the two second gears are arranged in a one-to-one correspondence with the two driving wheels, the second gear is coaxially fixedly connected to the corresponding driving wheel, the two second gears are meshedly connected, the second motor is fixedly connected in the connecting box, and the second motor is transmission-connected to one of the second gears.

[0018] By adopting the above technical solution, the main shaft of the second motor rotates to drive the second gear connected to it to rotate, and the meshing connection of the two second gears can drive the two driving wheels to rotate synchronously in opposite directions, thereby driving the feeding pipe.

[0019] Preferably, a stabilizing mechanism is provided in each section of the connecting rod, and each group of the stabilizing mechanisms includes a support rod, an expansion assembly, two clamping plates and two first springs. The support rod is vertically fixedly connected in the connecting rod, and the two clamping plates are slidably connected to the support rod. The two clamping plates slide in the direction of approaching or moving away from each other, and the two first springs are arranged in a one-to-one correspondence with the two clamping plates. The first spring is arranged between the clamping plate corresponding to itself and the connecting rod, and the two clamping plates clamp the feed pipe under the push of the two first springs. The expansion assembly is connected in the connecting rod, and the expansion assembly is used to drive the two clamping plates to move in the direction of moving away from each other.

[0020] By adopting the above technical solution, the two clamping plates are slidably connected to the support rod. Before the two connecting rods are connected, the two first springs are used to apply a force to the two clamping plates to move them closer to each other, so that the two clamping plates clamp the feed pipe, thereby ensuring the stability of the feed pipe in the connecting rod; after the two feed pipes are connected and the two adjacent connecting rods are connected, the two clamping plates move away from each other under the push of the expansion component, thereby releasing the clamping of the feed pipe, making it easier for the pushing mechanism to drive the feed pipe to slide.

[0021] Preferably, the expansion assembly includes an expansion block and a second spring, the expansion block is slidably connected in the connecting rod, the expansion block moves along the axial direction of the connecting rod, the second spring is arranged between the connecting rod and the expansion block, and the expansion block is located above the two expansion blocks under the push of the second spring. The two side walls of the expansion block close to the two clamping plates are inclined. When the two sections of the connecting rod are threadedly connected, the expansion block moves downward under the push of the threaded sleeve on the other section of the connecting rod to cause the two clamping plates to move away from each other.

[0022] By adopting the above technical solution, before installing the next section of the connecting rod, the expansion block is located above the two clamping plates under the support of the second spring. In the process of screwing the threaded sleeve on the connecting rod into the other section of the connecting rod, the threaded sleeve pushes the expansion block downward. The inclined setting of the two side surfaces of the expansion block can push the two clamping plates to move away from each other, thereby achieving a fixed connection between the two connecting rods and releasing the clamping of the feed pipe.

[0023] In summary, this application has at least the following beneficial technical effects:

[0024] 1. By placing the grouting device on the bracket, after detecting the location of the cave, the construction workers first move the crawler vehicle to the ground above the mine, and then start the power mechanism. The power mechanism drives the drill bit to rotate and drive the drill bit downward to drill through the ground. Then, the grouting device is started. The concrete slurry in the concrete transport vehicle is extracted through the grouting device and then fed into the cave using the hollow drill rod. There is no need to install additional grouting equipment to grout the cave, which improves the convenience of cave drilling and grouting.

[0025] 2. By setting a feed pipe inside each connecting rod, before adding connecting rods one by one, first connect the feed pipes in the two adjacent connecting rods together through threads. After the cave is opened, first use the sealing mechanism to open the slurry outlet, and then supply concrete slurry into the feed pipe. After the cement slurry passes through the feed pipe, it flows out of the slurry outlet to achieve grouting treatment of the cave.

[0026] 3. By clamping the feed pipe between the two pushing wheels and using the driving assembly to drive the two pushing wheels to rotate synchronously in opposite directions, the feed pipe can be extended from the slurry outlet and extended for a certain distance under the push of the two pushing wheels, so that the slurry can be supplied to a position close to the edge of the cave, thereby improving the uniformity of the cave grouting and ensuring the strength of the cement slurry at the edge of the cave after solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 This is a schematic structural diagram of a drilling device in an embodiment of the present application;

[0029] Figure 3 This is a schematic structural diagram of the lifting assembly in an embodiment of the present application;

[0030] Figure 4 This is a schematic structural diagram of a rotating assembly in an embodiment of the present application;

[0031] Figure 5 This is a schematic structural diagram of a threaded sleeve in an embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of the propulsion mechanism in an embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the structure of the drive assembly in an embodiment of the present application;

[0034] Figure 8 This is a schematic structural diagram of the stabilizing mechanism in an embodiment of the present application;

[0035] Figure 9 It is a structural diagram of the expansion component in an embodiment of the present application.

[0036] Figure numerals: 100, crawler vehicle; 200, bracket; 300, drilling device; 310, drill rod; 311, connecting rod; 312, threaded sleeve; 313, countersunk bolt; 320, drill bit; 330, power mechanism; 340, lifting plate; 350, rotating sleeve; 360, rotating assembly; 361, first motor; 362, first gear; 370, lifting assembly; 371, hydraulic cylinder; 400, grouting device; 410, connecting box; 411, slurry outlet; 420, blocking mechanism ; 421, sealing plate; 422, electric push cylinder; 430, feeding pipe; 440, connecting sleeve; 450, pushing mechanism; 460, pushing wheel; 470, driving assembly; 471, second motor; 472, second gear; 500, stabilizing mechanism; 510, support rod; 520, clamping plate; 530, first spring; 540, expansion assembly; 541, expansion block; 542, second spring; 600, pumping mechanism; 610, mud pump; 620, slurry inlet pipe; 630, slurry outlet pipe. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-9 This application is described in further detail.

[0038] The embodiment of the present application discloses a grouting device for grouting and reinforcing a cave.

[0039] Reference Figure 1 and Figure 2 A grouting device for grouting and reinforcing a karst cave includes a tracked vehicle 100, to which a bracket 200 is fixedly connected. The bracket 200 is arranged vertically, and a drilling device 300 is mounted on the bracket 200. The drilling device 300 includes a drill rod 310, which is rotatably connected to the bracket 200 and slidably connected to the bracket 200. A drill bit 320 is mounted on the lower end of the drill rod 310. A power mechanism 330 is mounted on the bracket 200, and the power mechanism 330 is used to drive the drill rod 310 to rotate and drive the drill rod 310 to move up and down. A grouting device 400 is mounted on the bracket 200, and the grouting device 400 is connected to the interior of the drill rod 310. The grouting device 400 pours concrete slurry into the underground karst cave through the drill rod 310.

[0040] Reference Figure 2 、 Figure 3 and Figure 4 The power mechanism 330 includes a lifting plate 340, which is slidably connected to the bracket 200. The lifting plate 340 slides along the height direction of the bracket 200. A lifting component 370 is installed on the bracket 200. The lifting component 370 is used to drive the lifting plate 340 to move up and down.

[0041] A rotating sleeve 350 is rotatably connected to the lifting plate 340. The axis of the rotating sleeve 350 is parallel to the height direction of the bracket 200. The rotating sleeve 350 rotates along its own axis and is mounted on the outside of the drill rod 310 to drive the drill rod 310 to rotate. A rotating assembly 360 is mounted on the lifting plate 340. The rotating assembly 360 includes a first motor 361 fixedly connected to the lifting plate 340. The main shaft of the first motor 361 is coaxially fixedly connected to a first gear 362. Another first gear 362 is coaxially fixedly connected to the outside of the rotating sleeve 350. The two first gears 362 are meshed and connected. When drilling a hole in a cave, the construction workers first place the drill rod 310 on the rotating sleeve 350 and then start the first motor 361. The main shaft of the first motor 361 rotates to drive the first gear 362 coaxially connected thereto to rotate. The two first gears 362 cooperate to drive the rotating sleeve 350 to rotate, and then drive the drill rod 310 and the drill bit 320 to rotate. Then, the lifting assembly 370 can push the drilling of the ground.

[0042] Reference Figure 3 and Figure 4 The lifting assembly 370 is a hydraulic cylinder 371, which is fixedly connected to the bracket 200. The hydraulic cylinder 371 is vertically arranged, and the piston rod of the hydraulic cylinder 371 is fixedly connected to the lifting plate 340. The lifting and lowering of the piston rod of the hydraulic cylinder 371 can drive the lifting plate 340 to move, thereby pushing the drill rod 310 to drill the ground.

[0043] Reference Figure 3 and Figure 5To facilitate adjustment of the drilling depth, the drill rod 310 includes multiple connecting rods 311. Each connecting rod 311 is hollow, and a drill bit 320 is connected to the bottom of one of the connecting rods 311. Each connecting rod 311 has an internal thread at one end. A threaded sleeve 312 is coaxially fixedly connected to the end of each connecting rod 311 away from the internal thread. The threaded sleeve 312 is hollow and mates with the internal thread of the connecting rod 311. Multiple countersunk bolts 313 are threadedly connected to each connecting rod 311. Each countersunk bolt 313 is located near the end of the connecting rod 311 away from the threaded sleeve 312 to which it is fixedly connected. The countersunk bolts 313 connected to the same connecting rod 311 are spaced apart about the axis of the connecting rod 311. The threaded sleeve 312 has multiple threaded holes, each corresponding to one of the multiple countersunk bolts 313. When drilling a hole in the ground, first, the connecting rod 311 with the drill bit 320 is installed on the rotating sleeve 350, and then the first motor 361 is started. The connecting rod 311 and the drill rod 310 are driven to rotate by the first motor 361, and then the drill bit 320 and the first connecting rod 311 are driven to drill into the ground under the push of the hydraulic cylinder 371. After the first connecting rod 311 is drilled into the ground, the first connecting rod 311 is removed from the rotating sleeve 350, and then the rotating sleeve 350 is lifted, and then the threaded sleeve 312 on the second connecting rod 311 is matched with the internal thread on the first connecting rod 311 to realize the connection between the two connecting rods 311, and the second connecting rod 311 is installed on the rotating sleeve 350, and then drilling can continue. By gradually connecting the connecting rods 311, the drilling depth of the drill rod 310 can be gradually increased to ensure the drilling depth of the drill rod 310.

[0044] Reference Figure 4 The lower end of the rotating sleeve 350 is coaxially fixedly connected to another threaded sleeve 312. The rotating sleeve 350 is rotated so that the threaded sleeve 312 on the rotating sleeve 350 is screwed into the connecting rod 311 at the upper end, and then tightened with the countersunk bolt 313. This can achieve a fixed connection between the rotating sleeve 350 and the connecting rod 311, thereby driving the connecting rod 311 and the drill bit 320 to rotate. The connecting rod 311 can be removed from the rotating sleeve 350 by loosening the countersunk nut and then reversing the rotating sleeve 350, thereby facilitating the installation of multiple connecting rods 311.

[0045] Reference Figure 1 、 Figure 3 and Figure 6The grouting device 400 includes a connecting box 410 having a hollow cylindrical structure. The top of the connecting box 410 is coaxially fixedly connected to the connecting rod 311 at the bottom. The interior of the connecting rod 311 is connected to the interior of the connecting box 410. The drill bit 320 is coaxially fixedly connected to the end of the connecting box 410 that is away from the connecting rod 311. A slurry outlet 411 is formed on the side wall of the connecting box 410. A sealing mechanism 420 is installed on the connecting box 410 to control the opening and closing of the slurry outlet 411.

[0046] Each connecting rod 311 houses a feed pipe 430. One end of each feed pipe 430 is coaxially and fixedly connected to a connecting sleeve 440. The outer surface of the connecting sleeve 440 is threaded, and the end of each feed pipe 430, away from the connecting sleeve 440 to which it is fixedly attached, is internally threaded to match the sleeve 440. The lowest feed pipe 430 passes through the connecting rod 311 and extends into the connecting box 410. The crawler vehicle 100 is equipped with a pumping mechanism 600, which is used to pump slurry from the concrete truck into the feed pipe 430. When installing each section of the connecting rod 311, first, the two sections of the feeding pipes 430 in the two sections of the connecting rods 311 are threaded together, and then the two sections of the connecting rods 311 are fixed. After the cave is drilled through, the slurry outlet 411 is opened through the sealing mechanism 420, and then the pumping mechanism 600 is started. The pumping mechanism 600 is used to supply cement slurry into the feeding pipe 430. After the cement slurry enters the feeding pipe 430, it flows out from the slurry outlet 411, and the grouting treatment of the cave can be achieved.

[0047] Reference Figure 6 The sealing mechanism 420 includes a sealing plate 421, which is slidably connected to the connection box 410. An electric push cylinder 422 is fixedly connected to the connection box 410, and the piston rod of the electric push cylinder 422 is fixedly connected to the sealing plate 421. During the drilling process, the sealing plate 421 is pushed by the electric push cylinder 422 to block the slurry outlet 411. When the cave is drilled through, the electric push cylinder 422 is activated, and the electric push cylinder 422 is used to drive the sealing plate 421 to slide, thereby opening the slurry outlet 411.

[0048] Reference Figure 3 、 Figure 6 and Figure 7 During grouting into a cave, sand and gravel aggregates in the slurry tend to accumulate below the slurry outlet 411, and more cement slurry tends to spread to the edge of the cave, resulting in poor uniformity of the slurry inside the cave. The cement slurry at the edge of the cave has a higher strength after solidification. In order to improve the uniformity of slurry filling inside the cave, a pushing mechanism 450 is installed in the connection box 410. The pushing mechanism 450 is used to extend the multi-section feed pipe 430 from the slurry outlet 411 and outward.

[0049] The propulsion mechanism 450 includes two propulsion wheels 460, both rotatably connected to the connection box 410. The rotation axes of the two propulsion wheels 460 are parallel, and each has an anti-slip groove on its side. The feed tube 430, a rigid plastic hose, is clamped between the two propulsion wheels 460. A drive assembly 470 is installed within the connection box 410 and is used to drive the two propulsion wheels 460 to rotate synchronously and in opposite directions.

[0050] The driving assembly 470 includes two second gears 472, and the two second gears 472 are arranged in a one-to-one correspondence with the two pushing wheels 460. The second gears 472 are coaxially fixedly connected to the corresponding pushing wheels 460, and the two second gears 472 are meshed and connected. A second motor 471 is fixedly connected in the connecting box 410, and the main shaft of the second motor 471 is coaxially fixedly connected to one of the second gears 472. After the cave is drilled through, the electric push cylinder 422 is started to open the slurry outlet 411, and then the second motor 471 is started. The main shaft of the second motor 471 rotates to drive the second gear 472 and the push wheel 460 coaxially connected thereto. With the cooperation of the two second gears 472, the two second gears 472 are driven to rotate in opposite directions, so that the feed pipe 430 can be extended from the slurry outlet 411 and extended for a distance under the drive of the two push wheels 460, so that the slurry can be supplied to a position close to the edge of the cave, thereby improving the uniformity of the cave grouting; at the same time, the first motor 361 is used to drive the drill rod 310 to rotate, so that the extension direction of the feed pipe 430 can be adjusted.

[0051] Reference Figure 5 、 Figure 8 and Figure 9In order to ensure the stability of the feeding tube 430 when it is installed in the connecting rod 311, a stabilizing mechanism 500 is installed in the connecting rod 311. The stabilizing mechanism 500 includes two parallel supporting rods 510. The two supporting rods 510 are perpendicular to the axis of the connecting rod 311. Two clamping plates 520 are sleeved on the outer side of the two supporting rods 510. Each clamping plate 520 is slidably connected to the two supporting rods 510. The two clamping plates 520 move in the direction of approaching or moving away from each other. A first spring 530 is installed on the side of each clamping plate 520 facing away from the other clamping plate 520. The first spring 530 is fixedly connected between the clamping plate 520 corresponding to itself and the connecting rod 311. The two first springs 530 push the two clamping plates 520 to move in the direction of approaching each other to clamp the feeding tube 430. Two groups of expansion components 540 are installed in the connecting rod 311, and the two groups of expansion components 540 are respectively close to the opposite sides of the connecting rod 311. Each group of expansion components 540 includes an expansion block 541 slidably connected to the connecting rod 311. A second spring 542 is installed in the connecting rod 311. The second spring 542 is vertically arranged. One end of the second spring 542 is fixedly connected to the connecting rod 311, and the other end of the second spring 542 is fixedly connected to the expansion block 541. The expansion block 541 is supported by the second spring 542 and is located above the two clamping plates 520. The cross-section of the expansion block 541 perpendicular to the length direction of the clamping plate 520 is trapezoidal. The expansion block 541 is used to push the two clamping plates 520 to move away from each other. When installing the connecting rod 311, the two first springs 530 are used to apply a force to the two clamping plates 520 to move closer to each other, so that the two clamping plates 520 clamp the feeding tube 430 in the connecting rod 311, ensuring the stability of the clamping plates 520 in the connecting rod 311; when connecting the next section of the connecting rod 311, the threaded sleeve 312 on the connecting rod 311 is screwed into another section of the connecting rod 311, and the threaded sleeve 312 pushes the expansion block 541 downward. The inclined setting of the two side surfaces of the expansion block 541 can be used to push the two clamping plates 520 to move away from each other, thereby releasing the clamping of the feeding tube 430, making it easier for the pushing mechanism 450 to drive the feeding tube 430 to slide.

[0052] Reference Figure 3The pumping mechanism 600 includes a slurry pump 610 fixedly connected to the bracket 200. A slurry inlet pipe 620 is fixedly connected to the slurry pump 610. The slurry inlet pipe 620 is connected to the slurry inlet of the slurry pump 610. The end of the slurry inlet pipe 620 away from the slurry pump 610 is connected to an external concrete transport vehicle. A slurry outlet pipe 630 is fixedly connected to the slurry pump 610. The end of the slurry outlet pipe 630 away from the slurry pump 610 is used to communicate with the uppermost section of the feed pipe 430. The slurry outlet pipe 630 is a hose. The slurry is extracted from the external concrete transport vehicle by using the slurry pump 610 and the slurry inlet pipe 620, and then supplied to the feed pipe 430 through the slurry outlet pipe 630, thereby achieving grouting inside the cave.

[0053] The implementation principle of the grouting equipment for grouting and reinforcement of caves in an embodiment of the present application is as follows: by setting a grouting device 400 on the drill rod 310, when encountering a smaller cave, the construction personnel first move the crawler vehicle 100 to the ground above the mine cave, and then start the power mechanism 330, and use the power mechanism 330 to drive the drill bit 320 to rotate and drive the drill bit 320 to move downward to drill through the ground. After the ground is drilled through, the electric push cylinder 422 drives the sealing plate 421 to open the slurry outlet 411, and then use the mud pump 610 and the slurry inlet pipe 620 to extract the slurry from the external concrete transport truck, and then supply it into the feed pipe 430 through the slurry outlet pipe 630 to achieve grouting inside the cave.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A grouting device for grouting and reinforcement of a cave, characterized by: The invention comprises a crawler vehicle (100), a bracket (200), a drilling device (300) and a grouting device (400), wherein the bracket (200) is connected to the crawler vehicle (100), the drilling device (300) comprises a drill rod (310), a drill bit (320) and a power mechanism (330), the drill rod (310) is connected to the bracket (200), the drill bit (320) is connected to the drill rod (310), the power mechanism (330) is connected to the bracket (200), the power mechanism (330) is connected to the drill rod (310), the power mechanism (330) is used to drive the drill rod (310) to rotate and to drive the drill rod (310) to rise and fall, the drill rod (310) is hollow, the grouting device (400) is connected to the bracket (200), and the grouting device (400) grouts into the cave through the drill rod (310); The power mechanism (330) comprises a lifting plate (340), a rotating sleeve (350), a lifting assembly (370) and a rotating assembly (360); the lifting plate (340) is slidably connected to the bracket (200); the lifting assembly (370) is connected to the bracket (200); the lifting assembly (370) is connected to the lifting plate (340) to drive the lifting plate (340) to move up and down; the rotating sleeve (350) is rotatably connected to the lifting plate (340); the rotating assembly (360) is connected to the lifting plate (340); and the rotating assembly (360) is connected to the rotating sleeve (350) to drive the rotating sleeve (350) to rotate; The drill rod (310) includes a plurality of connecting rods (311), one end of each connecting rod (311) is coaxially fixedly connected to a threaded sleeve (312), the other end of each connecting rod (311) is provided with an internal thread that matches the threaded sleeve (312), a countersunk bolt (313) is threadedly connected to the side wall of each connecting rod (311), and each threaded sleeve (312) is provided with a threaded hole that matches the countersunk bolt (313), and the rotating sleeve (350) is connected to one of the connecting rods (311) to drive the connecting rod (311) to rotate; The grouting device (400) comprises a connecting box (410), a plugging mechanism (420) and a multi-section feed pipe (430); the connecting box (410) is coaxially fixedly connected to the connecting rod (311) at the lowest end; the drill bit (320) is coaxially fixedly connected to an end of the connecting box (410) away from the connecting rod (311); a slurry outlet (411) is provided on the connecting box (410); the plugging mechanism (420) is connected to the connecting box (410); and the plugging mechanism (420) Used to control the opening or closing of the pulp outlet (411), multiple sections of the feed pipe (430) are arranged in a one-to-one correspondence with multiple sections of the connecting rod (311), the feed pipe (430) is connected to the corresponding connecting rod (311), each section of the feed pipe (430) is connected to the corresponding connecting rod (311), multiple sections of the feed pipe (430) are interconnected, and the feed pipe (430) at the lowest part passes through the connecting rod (311) and then extends into the connection box (410); Each section of the connecting rod (311) is provided with a stabilizing mechanism (500), and each group of the stabilizing mechanisms (500) includes a support rod (510), an expansion assembly (540), two clamping plates (520) and two first springs (530). The support rod (510) is vertically fixedly connected to the connecting rod (311), and the two clamping plates (520) are slidably connected to the support rod (510). The two clamping plates (520) slide in a direction of approaching or moving away from each other. The two first springs The spring (530) is arranged in a one-to-one correspondence with the two clamping plates (520), and the first spring (530) is arranged between the clamping plate (520) corresponding to itself and the connecting rod (311). The two clamping plates (520) clamp the feeding tube (430) under the push of the two first springs (530). The expansion component (540) is connected to the connecting rod (311), and the expansion component (540) is used to drive the two clamping plates (520) to move away from each other.

2. The grouting equipment for cave grouting reinforcement according to claim 1, characterized in that: A pushing mechanism (450) is provided in the connection box (410), and the pushing mechanism (450) includes a driving assembly (470) and two pushing wheels (460). The two pushing wheels (460) are both rotatably connected in the connection box (410), and the feeding pipe (430) is clamped between the two pushing wheels (460). The driving assembly (470) is connected in the connection box (410), and the two pushing wheels (460) are both connected to the driving assembly (470). The driving assembly (470) drives the two pushing wheels (460) to rotate synchronously in opposite directions.

3. The grouting equipment for cave grouting reinforcement according to claim 2, characterized in that: The driving assembly (470) includes a second motor (471) and two second gears (472), the two second gears (472) being arranged in a one-to-one correspondence with the two driving wheels (460), the second gears (472) being coaxially fixedly connected to the corresponding driving wheels (460), the two second gears (472) being meshedly connected, the second motor (471) being fixedly connected in the connecting box (410), and the second motor (471) being transmission-connected to one of the second gears (472).

4. The grouting equipment for cave grouting reinforcement according to claim 1, characterized in that: The expansion assembly (540) includes an expansion block (541) and a second spring (542), wherein the expansion block (541) is slidably connected in the connecting rod (311), and the expansion block (541) moves along the axial direction of the connecting rod (311). The second spring (542) is arranged between the connecting rod (311) and the expansion block (541). The expansion block (541) is located above the two expansion blocks (541) under the push of the second spring (542). The two side walls of the expansion block (541) close to the two clamping plates (520) are inclined. When the two sections of the connecting rod (311) are threadedly connected, the expansion block (541) moves downward under the push of the threaded sleeve (312) on the other section of the connecting rod (311) to move the two clamping plates (520) away from each other.

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