A coal mine underground support device

Abstract

The present invention belongs to the technical field of coal mine construction, and specifically is an underground coal mine support device, comprising a support frame, a plurality of connecting rods are fixed at equal intervals on the top of the support frame, support boxes are fixed on both sides of the bottom of the support frame, a conveyor belt is arranged inside the support frame, a plurality of support rollers are arranged at equal intervals inside and below the conveyor belt, pressure sensors are arranged at both ends of the support rollers located inside the conveyor belt, both sides of the bottom of the conveyor belt extend to the inside of the two support boxes, and the inside of the conveyor belt is rotatably connected with two rollers; soil and coal slag dropped from the mine wall can be received by the conveyor belt, and when the soil and coal slag at the top of the conveyor belt reaches the set pressure, the conveyor belt rolls to input the soil and coal slag into the inside of a receiving tray, and at this time, the staff can judge whether the inner wall of the mine is stable according to the amount of soil and coal slag in the receiving tray, so as to facilitate the monitoring of the state of the inner wall of the mine.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine construction, in particular to an underground coal mine support device. Background Art

[0002] A coal mine is a facility used to mine coal. After the coal mine is mined, there will be many mine tunnels. The mine tunnels are used to transport subsequently mined coal resources and for workers to walk. Therefore, the stability of the coal mine needs to be ensured, and support devices need to be installed inside the mine tunnels. The support devices can maintain the stability of the mine tunnels and prevent collapse.

[0003] A Chinese patent with an existing announcement number of CN219390847U discloses a coal mine underground support device, including side support plates, the upper ends of the side support plates are fixedly connected to arched top plates, the inner walls of the arched top plates are fixedly connected to test plates, there are several test plates, and the lower ends of the test plates are fixedly provided with test holes. When the side plates and top plates are deformed, the laser rays cannot reach the monitoring device, thereby issuing an alarm sound. A single light source and sensor are used, and the installation is simple.

[0004] During use of the above-mentioned technical solution, it is necessary to support the supporting device inside the mine tunnel. However, during use, the inner wall of the mine will cause soil or coal slag to fall off due to the vibration generated by mining. At this time, the soil and coal slag will fall to the ground. The light in the mine is relatively poor. At this time, it is difficult to detect the fallen soil and coal slag in time, and it is impossible to judge whether the inner wall structure of the mine is stable in time based on the amount of falling.

[0005] To this end, the present invention provides an underground coal mine support device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a coal mine underground support device described in the present invention includes a support frame, a plurality of connecting rods are fixed at equal intervals on the top of the support frame, support boxes are fixed on both sides of the bottom of the support frame, a conveyor belt is arranged inside the support frame, a plurality of support rollers are arranged at equal intervals inside and below the conveyor belt, pressure sensors are arranged at both ends of the support rollers located inside the conveyor belt, the other end of the pressure sensor is fixedly connected to the support frame, both ends of the support rollers are rotatably connected to the support frame, both sides of the bottom end of the conveyor belt extend to the inside of the two support boxes, the inside of the conveyor belt is rotatably connected to two rollers, and the two rollers are rotatably connected to the middle of the two support boxes, a receiving tray is arranged at the bottom of one of the support boxes, a motor is installed on one side of the support box close to the receiving tray, a first transmission gear is fixed to one end of the roller close to the motor, an output gear is fixed to the end of the rotating shaft of the motor, and the output gear is meshed with the first transmission gear.

[0008] Preferably, a material guide plate is fixed inside the support box near the material receiving tray, a material discharge port is fixed at the bottom end of the material guide plate, and the material receiving tray is arranged below the material discharge port.

[0009] Preferably, a shovel plate is fixed to one side of the guide plate, and the top end of the shovel plate is in close contact with the outer surface of the conveyor belt.

[0010] Preferably, a rotating frame is arranged above the rotating roller near the receiving plate, the rotating frame is rotatably connected to the support box, a second transmission gear is fixed to one end of the rotating frame near the first transmission gear, the second transmission gear is meshingly connected to the first transmission gear, a plurality of rotating rods are fixed at equal intervals on the outside of the rotating frame, support rods are arranged above and below one side of the rotating frame near the material guide plate, and the support rods are rotatably connected to the support box.

[0011] Preferably, a mounting plate is provided below the receiving plate, a support frame is provided below the mounting plate, two sliding rollers are fixed on both sides of the support frame, two groups of sliding holes are opened on both sides of the support box near the sliding rollers, and the sliding rollers are slidably connected inside the sliding holes.

[0012] Preferably, pulleys are fixed at both ends of the rotating roller, a transmission pulley is arranged below the pulley, the transmission pulley is rotatably connected to the support box, the pulley and the transmission pulley are connected by a belt, a rotating arm is fixed to the end of the transmission pulley away from the support box, the end of the rotating arm away from the transmission pulley is rotatably connected to a connecting arm, and the end of the connecting arm away from the rotating arm is rotatably connected to a sliding roller away from the support rod.

[0013] Preferably, movable plates are fixed on both sides of the bottom of the mounting plate, a plurality of slots are evenly spaced at the bottom of the movable plates, a top plate is provided below the movable plates, the bottom of the top plate is fixedly connected to the support box, and the top of the top plate can engage with the slots.

[0014] Preferably, two connecting frames are fixed on both sides of the top of the support frame, a telescopic rod passes through the interior of the connecting frame, a spring is sleeved on the outside of the telescopic rod, the bottom end of the spring is fixedly connected to the telescopic rod, the top end of the spring is fixedly connected to the connecting frame, and the top end of the telescopic rod is fixedly connected to the mounting plate.

[0015] Preferably, a water receiving bucket is fixed on one side of the shovel plate, a rolling roller is arranged between the water receiving bucket and the shovel plate, the rolling roller is rotatably connected to the support box, the top of the rolling roller is close to the conveyor belt, a water pipe is fixed to the bottom end of the water receiving bucket, and a water storage box is fixed to the bottom end of the water pipe.

[0016] Preferably, a baffle is fixed on the side of the support frame away from the receiving tray, and a baffle rod is provided on the side of the baffle plate close to the conveyor belt, and the baffle rod is close to the surface of the conveyor belt.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The underground coal mine support device described in the present invention can receive soil slag and coal slag fallen from the mine wall through a conveyor belt. When the soil slag and coal slag at the top of the conveyor belt reach a set pressure, the conveyor belt rolls to input the soil slag and coal slag into the inside of the receiving tray. At this time, the staff can judge whether the inner wall of the mine is stable based on the amount of soil slag and coal slag in the receiving tray, which can facilitate the monitoring of the status of the inner wall of the mine.

[0019] 2. The underground coal mine support device described in the present invention can squeeze out water from the conveyor belt through a rolling roller, and at the same time introduce the squeezed water into the water pipe through a water receiving bucket. The water pipe stores the water in a water storage box. The staff can judge the humidity of the mine by the amount of water in the water storage box, which can make it easier for the staff to monitor the status of the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is the internal structure diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the baffle structure in the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the support frame in the present invention;

[0025] Figure 5 It is a schematic diagram of the motor structure in the present invention;

[0026] Figure 6 It is a schematic diagram of the water receiving bucket structure in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the installation disk in the present invention;

[0028] Figure 8 It is a schematic diagram of the support frame structure in the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the movable plate in the present invention.

[0030] In the figure: 1, support frame; 11, connecting rod; 2, support box; 21, slide hole; 3, conveyor belt; 31, support roller; 32, rotating roller; 321, first transmission gear; 33, baffle; 331, blocking stick; 34, water receiving bucket; 341, water guide pipe; 342, water storage box; 343, rolling roller; 344, material guide plate; 345, material outlet; 346, shovel plate; 35, rotating frame; 351, rotating rod; 352, support rod; 353, second transmission gear; 36, motor; 4, material receiving plate; 41, mounting plate; 42, support frame; 421, connecting frame; 422, telescopic rod; 423, spring; 43, sliding roller; 431, connecting arm; 432, rotating arm; 433, transmission pulley; 44, moving plate; 441, slot; 442, top plate. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 6 As shown, a coal mine underground support device described in an embodiment of the present invention includes a support frame 1, a plurality of connecting rods 11 are fixed at equal intervals on the top of the support frame 1, support boxes 2 are fixed on both sides of the bottom of the support frame 1, a conveyor belt 3 is arranged inside the support frame 1, a plurality of support rollers 31 are arranged at equal intervals inside and below the conveyor belt 3, pressure sensors are arranged at both ends of the support rollers 31 located inside the conveyor belt 3, the other end of the pressure sensor is fixedly connected to the support frame 1, both ends of the support rollers 31 are rotatably connected to the support frame 1, both sides of the bottom end of the conveyor belt 3 extend to the inside of the two support boxes 2, the inside of the conveyor belt 3 is rotatably connected to two rollers 32, and the two rollers 32 are rotatably connected to the middle of the two support boxes 2, a receiving tray 4 is arranged at the bottom end of one of the support boxes 2, a motor 36 is installed on one side of the support box 2 near the receiving tray 4, a first transmission gear 321 is fixed to one end of the roller 32 near the motor 36, an output gear is fixed to the end of the rotating shaft of the motor 36, and the output gear is meshed and connected with the first transmission gear 321;

[0033] During the construction of a coal mine, it is necessary to maintain the stability of the shaft wall, so a support device is used to support the inner wall of the coal mine. When installing the support device, the support frame 1 and the support box 2 are moved to the location to be installed, and then the support box 2 is supported on the ground of the mine. The support frame 1 is supported on the top of the mine. The top of the support frame 1 is supported by a connecting rod 11. There is a gap between the connecting rods 11. When vibrations are generated during the mining process, soil and coal slag will fall off the inner wall of the mine due to the vibration. The fallen soil and coal slag will fall on the top of the conveyor belt 3. After the soil and coal slag continue to fall, the conveyor belt 3 will be pressed down by the gravity of the soil and coal slag. During the downward pressure process, the conveyor belt 3 pushes the support roller 31 downward. The support roller 31 After being pushed, the pressure sensor is pressed. When the pressure of the pressure sensor reaches the warning value, the control end is reminded. At the same time, the motor 36 is started to drive the first transmission gear 321 to rotate through the output gear. The first transmission gear 321 drives the roller 32 to roll. The rolling of the roller 32 drives the conveyor belt 3 to start rolling. At this time, the conveyor belt 3 drives the soil and coal slag at the top to move toward the receiving tray 4. Then the soil and coal slag will fall from the surface of the conveyor belt 3 to the inside of the receiving tray 4. At this time, the fallen soil and coal slag can be stored in the inside of the receiving tray 4. After receiving the reminder, the staff can judge the current situation of the inner wall of the coal slag well through the soil and coal slag inside the receiving tray 4 and the reminder time, and make timely adjustments and protection.

[0034] like Figures 1 to 6 As shown, a material guide plate 344 is fixed inside the support box 2 near the receiving tray 4, a material outlet 345 is fixed at the bottom end of the material guide plate 344, and the receiving tray 4 is arranged below the material outlet 345;

[0035] When soil and coal slag fall from the surface of the conveyor belt 3, the guide plate 344 can guide and concentrate them, and then guide them to the inside of the discharge port 345 through the guide plate 344. The discharge port 345 guides the fallen soil and coal slag to the inside of the receiving tray 4, making it convenient for the receiving tray 4 to receive them.

[0036] like Figures 1 to 6 As shown, a shovel plate 346 is fixed to one side of the guide plate 344, and the top end of the shovel plate 346 is in close contact with the outer surface of the conveyor belt 3;

[0037] During the process of conveyor belt 3 transporting soil slag and coal slag, the soil slag will contain moisture, which will cause the soil slag to adhere to the surface of conveyor belt 3, making it impossible for the soil slag and coal slag to fall off the surface of conveyor belt 3. Therefore, a shovel plate 346 is provided. When conveyor belt 3 rolls over shovel plate 346, shovel plate 346 can shovel off the soil slag and coal slag on the surface of conveyor belt 3. At this time, the coal slag on the surface of conveyor belt 3 can be removed more completely, making it easier for staff to judge the amount of soil slag and coal slag that has fallen off.

[0038] like Figures 1 to 5As shown, a rotating frame 35 is arranged above the rotating roller 32 near the receiving plate 4, and the rotating frame 35 is rotatably connected to the support box 2. A second transmission gear 353 is fixed to one end of the rotating frame 35 near the first transmission gear 321, and the second transmission gear 353 is meshedly connected with the first transmission gear 321. A plurality of rotating rods 351 are fixed to the outside of the rotating frame 35 at equal intervals, and support rods 352 are arranged above and below one side of the rotating frame 35 near the guide plate 344, and the support rods 352 are rotatably connected to the support box 2.

[0039] In order to facilitate the collection of soil and coal slag, the conveyor belt 3 is set to a water-absorbing material. At this time, the moisture of the soil and coal slag on the surface of the conveyor belt 3 can be absorbed by the conveyor belt 3. After absorption, the soil and coal slag on the surface of the conveyor belt 3 will adhere to the surface of the conveyor belt 3. In order to facilitate the shovel plate 346 to shovel the slag off, a rotating frame 35 is set. While the first transmission gear 321 rotates, the second transmission gear 353 drives the rotating frame 35 to rotate. At this time, the rotating frame 35 drives the rotating rod 351 to rotate and push the conveyor belt 3 to deform. At the same time, under the limitation of the two support rods 352, the soil and coal slag fixed on the surface of the conveyor belt 3 can be separated from the local area between the conveyor belt 3, which can make it easier for the shovel plate 346 at the back to shovel the soil and coal slag off.

[0040] like Figures 1 to 8 As shown, a mounting plate 41 is provided below the receiving plate 4, a support frame 42 is provided below the mounting plate 41, two sliding rollers 43 are fixed on both sides of the support frame 42, two groups of sliding holes 21 are provided near the sliding rollers 43 on both sides of the support box 2, and the sliding rollers 43 are slidably connected inside the sliding holes 21;

[0041] During the process of receiving soil slag and coal slag by the receiving tray 4, the receiving tray 4 remains stationary, which will cause the soil slag and coal slag outputted from the discharge port 345 to accumulate at the same position inside the receiving tray 4, making it impossible to evenly store the soil slag and coal slag inside the receiving tray 4. At this time, the discharge port 345 is easily blocked, making it inconvenient for the receiving tray 4 to collect the soil slag and coal slag. Therefore, a sliding roller 43 is provided to slide inside the sliding hole 21, and the sliding roller 43 drives the support frame 42 to move. The support frame 42 drives the receiving tray 4 to move through the mounting plate 41. During the movement, the position of the soil slag and coal slag outputted from the discharge port 345 at which it falls inside the receiving tray 4 can be changed, so that the soil slag and coal slag stored inside the receiving tray 4 can be more evenly distributed.

[0042] like Figures 1 to 8As shown, pulleys are fixed at both ends of the rotating roller 32, and a driving pulley 433 is arranged below the pulley. The driving pulley 433 is rotatably connected to the supporting box 2. The pulley and the driving pulley 433 are connected by a belt. A rotating arm 432 is fixed to the end of the driving pulley 433 away from the supporting box 2, and the end of the rotating arm 432 away from the driving pulley 433 is rotatably connected to a connecting arm 431, and the end of the connecting arm 431 away from the rotating arm 432 is rotatably connected to the sliding roller 43 away from the support rod 352.

[0043] When the roller 32 rotates, it will drive the pulley at its end to rotate, and the pulley will drive the transmission pulley 433 to rotate through the belt, and the transmission pulley 433 will drive the rotating arm 432 to rotate. When the rotating arm 432 rotates, it will drive the connecting arm 431 to move. Every time the rotating arm 432 rotates one circle, it will drive the connecting arm 431 to push and pull once. When the connecting arm 431 is pushed and pulled, it will drive the sliding roller 43 to move together. At this time, the sliding roller 43 can automatically drive the receiving tray 4 to move when the conveyor belt 3 rolls, which can make it easier for the receiving tray 4 to collect soil slag and coal slag.

[0044] like Figures 7 to 9 As shown, a movable plate 44 is fixed on both sides of the bottom end of the mounting plate 41, and a plurality of slots 441 are provided at equal intervals at the bottom end of the movable plate 44. A top plate 442 is provided below the movable plate 44, and the bottom end of the top plate 442 is fixedly connected to the support box 2, and the top end of the top plate 442 can be engaged with the slots 441;

[0045] The soil slag and coal slag will not enter the interior of the receiving tray 4 evenly. At this time, there is more space inside the receiving tray 4 and cannot store more soil slag and coal slag. Therefore, the moving plate 44 will be driven to move during the movement of the mounting plate 41. At this time, the moving plate 44 drives the card slot 441 to pass through the top of the top plate 442. During the movement of the mounting plate 41, multiple card slots 441 are continuously engaged and separated from the top plate 442, which can cause the moving plate 44 to vibrate. At this time, the moving plate 44 drives the mounting plate 41 to vibrate, which can cause the receiving tray 4 inside the mounting plate 41 to vibrate. After the receiving tray 4 vibrates, the soil slag and coal slag inside it will be vibrated more evenly, which is convenient for the storage of the receiving tray 4.

[0046] like Figures 7 to 9 As shown, two connecting frames 421 are fixed on both sides of the top of the support frame 42, and a telescopic rod 422 is passed through the interior of the connecting frame 421, and a spring 423 is sleeved on the exterior of the telescopic rod 422. The bottom end of the spring 423 is fixedly connected to the telescopic rod 422, and the top end of the spring 423 is fixedly connected to the connecting frame 421, and the top end of the telescopic rod 422 is fixedly connected to the mounting plate 41;

[0047] When the mounting plate 41 is driven to vibrate, it will move up and down. At this time, the mounting plate 41 will drive the telescopic rod 422 to move. When the telescopic rod 422 moves, the spring 423 will be squeezed and then restored to its original state, which can facilitate the vibration of the mounting plate 41.

[0048] like Figures 1 to 6 As shown, a water receiving bucket 34 is fixed to one side of the shovel plate 346, a rolling roller 343 is arranged between the water receiving bucket 34 and the shovel plate 346, the rolling roller 343 is rotatably connected to the support box 2, the top of the rolling roller 343 is close to the conveyor belt 3, a water guide pipe 341 is fixed to the bottom end of the water receiving bucket 34, and a water storage box 342 is fixed to the bottom end of the water guide pipe 341;

[0049] After the conveyor belt 3 absorbs moisture from the soil, the moisture will remain inside the conveyor belt 3. When collecting soil and coal slag, the conveyor belt 3 will pass through the top of the rolling roller 343. At this time, the rolling roller 343 can squeeze the conveyor belt 3. After being squeezed, the moisture inside the conveyor belt 3 will drip from the surface of the rolling roller 343 to the inside of the water receiving bucket 34. At this time, the water receiving bucket 34 will guide the water flow through the water pipe 341 into the inside of the water storage box 342. The water storage box 342 can store the water flow, which is convenient for the staff to judge the humidity of the coal mine based on the stored water.

[0050] like Figures 1 to 3 As shown, a baffle 33 is fixed on the side of the support frame 1 away from the receiving tray 4, and a baffle rod 331 is provided on the side of the baffle plate 33 close to the conveyor belt 3, and the baffle rod 331 is close to the surface of the conveyor belt 3;

[0051] During use, the baffle 33 can block the top of the support box 2 on the other side to prevent soil slag and coal slag from falling into the other support box 2, and at the same time guide the soil slag and coal slag at the top to the position of the blocking rod 331. When the conveyor belt 3 rolls, the blocking rod 331 will roll with the conveyor belt 3. At this time, the conveyor belt 3 can take away the soil slag and coal slag at the position of the blocking rod 331, thereby preventing soil slag and coal slag from remaining in the support box 2 on one side of the baffle 33.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coal mine underground support device, characterized in that: The invention comprises a support frame (1), a plurality of connecting rods (11) are fixed at equal intervals at the top of the support frame (1), support boxes (2) are fixed on both sides of the bottom of the support frame (1), a conveyor belt (3) is arranged inside the support frame (1), a plurality of support rollers (31) are arranged at equal intervals inside and below the conveyor belt (3), pressure sensors are arranged at both ends of the support rollers (31) located inside the conveyor belt (3), the other end of the pressure sensor is fixedly connected to the support frame (1), both ends of the support rollers (31) are rotatably connected to the support frame (1), and the two ends of the bottom of the conveyor belt (3) are fixedly connected to the support frame (1). The conveyor belt (3) extends to the inside of the two support boxes (2), the inside of the conveyor belt (3) is rotatably connected to two rollers (32), and the two rollers (32) are rotatably connected to the middle of the two support boxes (2), respectively, a receiving tray (4) is provided at the bottom end of the inside of one of the support boxes (2), a motor (36) is installed on one side of the support box (2) close to the receiving tray (4), a first transmission gear (321) is fixed to one end of the roller (32) close to the motor (36), and an output gear is fixed to the end of the rotating shaft of the motor (36), and the output gear is meshed and connected with the first transmission gear (321); A mounting plate (41) is provided below the receiving plate (4), a support frame (42) is provided below the mounting plate (41), two sliding rollers (43) are fixed on both sides of the support frame (42), two groups of sliding holes (21) are provided at positions close to the sliding rollers (43) on both sides of the support box (2), and the sliding rollers (43) are slidably connected inside the sliding holes (21); Pulleys are fixed at both ends of the rotating roller (32), a driving pulley (433) is arranged below the pulley, the driving pulley (433) is rotatably connected to the support box (2), the pulley and the driving pulley (433) are connected by a belt, a rotating arm (432) is fixed to one end of the driving pulley (433) away from the support box (2), the rotating arm (432) is rotatably connected to one end of the driving pulley (433) away from the driving pulley (433), and a connecting arm (431) is rotatably connected to one end of the connecting arm (431) away from the rotating arm (432) and a sliding roller (43) away from the support rod (352); A movable plate (44) is fixed to both sides of the bottom end of the mounting plate (41); a plurality of slots (441) are provided at equal intervals at the bottom end of the movable plate (44); a top plate (442) is provided below the movable plate (44); the bottom end of the top plate (442) is fixedly connected to the support box (2); and the top end of the top plate (442) can be engaged with the slots (441).

2. A coal mine underground support device according to claim 1, characterized in that: A material guide plate (344) is fixed inside the support box (2) near the material receiving tray (4), a material outlet (345) is fixed at the bottom end of the material guide plate (344), and the material receiving tray (4) is arranged below the material outlet (345).

3. A coal mine underground support device according to claim 2, characterized in that: A shovel plate (346) is fixed to one side of the guide plate (344), and the top end of the shovel plate (346) is in close contact with the outer surface of the conveyor belt (3).

4. The underground coal mine support device according to claim 1, characterized in that: A rotating frame (35) is arranged above the rotating roller (32) near the receiving plate (4), and the rotating frame (35) is rotatably connected to the support box (2). A second transmission gear (353) is fixed to one end of the rotating frame (35) near the first transmission gear (321), and the second transmission gear (353) is meshingly connected to the first transmission gear (321). A plurality of rotating rods (351) are fixed at equal intervals outside the rotating frame (35), and support rods (352) are arranged above and below one side of the rotating frame (35) near the material guide plate (344), and the support rods (352) are rotatably connected to the support box (2).

5. The underground coal mine support device according to claim 1, characterized in that: Two connecting frames (421) are fixed on both sides of the top of the support frame (42), a telescopic rod (422) is passed through the interior of the connecting frame (421), a spring (423) is sleeved on the exterior of the telescopic rod (422), the bottom end of the spring (423) is fixedly connected to the telescopic rod (422), the top end of the spring (423) is fixedly connected to the connecting frame (421), and the top end of the telescopic rod (422) is fixedly connected to the mounting plate (41).

6. A coal mine underground support device according to claim 2, characterized in that: A water receiving bucket (34) is fixed to one side of the shovel plate (346); a rolling roller (343) is provided between the water receiving bucket (34) and the shovel plate (346); the rolling roller (343) is rotatably connected to the support box (2); the top end of the rolling roller (343) is in close contact with the conveyor belt (3); a water guide pipe (341) is fixed to the bottom end of the water receiving bucket (34); and a water storage box (342) is fixed to the bottom end of the water guide pipe (341).

7. The underground coal mine support device according to claim 1, characterized in that: A baffle plate (33) is fixed to a side of the support frame (1) away from the receiving tray (4), and a baffle rod (331) is provided on a side of the baffle plate (33) close to the conveyor belt (3), wherein the baffle rod (331) is in close contact with the surface of the conveyor belt (3).

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