Drilling rig for coal mine geology water control

Abstract

The invention relates to the field of water exploring drilling machines, and discloses a drilling rig for coal mine geology water control, which comprises a drilling machine, the drilling machine is composed of a chassis system and a drilling frame, a mounting frame is arranged on one side of the drilling frame above the chassis system, and a feeding assembly for conveying and cleaning is arranged on one side of the mounting frame. According to the drilling rig for coal mine geology water prevention and control, the feeding assembly is arranged, switching of different working states can be achieved only through simple control, time can be saved, and the number of workers and the working intensity can also be reduced; secondly, the transportation convenience can be improved, after the storage racks are connected through the connecting plates, the storage racks can work normally under the condition that the space is limited, and a spacious construction environment can be provided for workers; and finally, workers can fix the drill rods in the storage rack, so that samples are prevented from falling off, and subsequent sampling work is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of water exploration drills, and particularly to a drilling device for preventing and controlling water in coal mine geology. Background Art

[0002] In the patent application with the application publication number CN119308597A, it includes a drilling main machine, a rod adding and removing manipulator, and a rod supplementing device; the drilling main machine and the rod supplementing device are arranged in parallel and offset, and the rod adding and removing manipulator is arranged in the upper middle position between the two, and through the cooperation and transmission of actions among the three, automatic rod supplementing, rod adding and rod removing are realized; the drilling main machine includes a feeding device, a middle angle adjusting device arranged at the rear lower part of the feeding device, a front angle adjusting device arranged at the front end of the feeding device, a carriage device arranged on the feeding device, a rotary table installed on the carriage device and the active drill pipe group therein, and a clamping and unclamping device arranged on the feeding device; the carriage device can drive the rotary table to move on the guide rail of the feeding device, and the rotary table and the active drill pipe group are coaxial with the clamping and unclamping device; the rod adding and removing manipulator includes an angle adjusting oil cylinder, a first-level rotating arm, a second-level rotating arm, a rotating support beam, a translation support beam, a first-level telescopic oil cylinder, a telescopic arm, a drill pipe gripper and a second-level telescopic oil cylinder connected in sequence; the angle adjusting oil cylinder can adjust the angle of the first-level rotating arm, and the second-level rotating arm can drive the rotating support beam, the translation support beam, the first-level telescopic oil cylinder and the telescopic arm to rotate as a whole around its rotation center within 0-90°; the translation support beam is clamped outside the guide rail of the telescopic arm to make the telescopic arm slide axially as a whole under the extension / retraction of the first-level telescopic oil cylinder; the second-level telescopic oil cylinder in the telescopic arm can make the drill pipe gripper slide axially as a whole under its extension / retraction; the rod supplementing device includes a drill pipe bin, a rod supplementing manipulator, a horizontal position sensor, a rack guide rail, a sliding guide rail, a transfer tray, an opposing device, and a transfer oil cylinder; the side and the front of the drill pipe bin are respectively fixed to the sliding guide rail and the rack guide rail, the rod supplementing manipulator is clamped on the rack guide rail and can slide along the rack guide rail; one end of the horizontal position sensor is fixed to the rod supplementing manipulator, and the other end is fixed to the drill pipe bin to realize the positioning of the horizontal movement of the rod supplementing manipulator; the transfer tray is clamped on the sliding guide rail, one end of the transfer oil cylinder is fixed to the sliding guide rail, and the other end is fixed to the drill pipe bin, and the transfer tray slides along the sliding guide rail under the action of the transfer oil cylinder, and the opposing devices are symmetrically arranged at both ends of the transfer tray to ensure that the position of each drill pipe placement is relatively fixed, improving the control accuracy. The advantages are as follows: the drilling rig can achieve an integral layout, with a compact structure, a built-in power system, and does not require a special power pump truck for supporting use. It can realize directional drilling construction with the existing conventional mud pump truck, and has a wider adaptability; during the construction of adding and removing drill pipes, the rod adding and removing manipulator can realize the functions of adding and removing drill pipes at different drilling angles. The movement adopts a combination of linear and rotational movements, and can realize the actions of adding and removing drill pipes within a small angle range of (0-90°). By adopting a combination of mechanical limit and angle sensors, precise positioning at multiple angles is realized, improving the efficiency and reliability of adding and removing drill pipes; during the rod supplementing operation, the drilling rig has a rod bin capacity that can meet the average single-shift footage in actual construction, and can realize single-shift rod supplementing once. Basically, there is no need for auxiliary personnel to wait for rod supplementing, achieving the purpose of reducing personnel and increasing efficiency. At the same time, the rod bin is designed in an N+1 structure, which can realize multi-mode operations of always manually adding / removing rods at a low position and a fixed position, and the manipulator automatically loading / unloading drill pipes into the rod bin, greatly reducing the labor intensity of workers and significantly improving the operation safety of adding and removing drill pipes.

[0003] In the prior art including the above patents, for tunnel drilling rigs of any size, most tunnel drilling rigs require a large number of workers, and multiple workers serve one piece of equipment, which undoubtedly increases the working pressure of on-site command and also reduces the working efficiency of the equipment. Although the above equipment solves these problems, using a robotic arm will undoubtedly greatly increase the cost. Because there is a lot of dust in the air in the tunnel, more cost and time are required for maintaining the robotic arm. And when workers replenish the drill rods, they still need to place all the drill rods on the equipment one by one or at once, and the working intensity is not much reduced compared with traditional equipment. Summary of the Invention

[0004] The problems to be solved by the present invention are: the use cost and manufacturing cost of existing equipment are relatively high, and the working intensity for a single worker is not much reduced.

[0005] To solve the above technical problems, the technical solution of the present invention is: a drilling device for coal mine geological water control and prevention, including a drilling rig. The drilling rig is composed of a chassis system and a drill rig. Above the chassis system and on one side of the drill rig, there is an installation frame. On one side of the installation frame, there is a feeding and cleaning assembly for transporting and cleaning. At the upper end of the installation frame, there is a feeding assembly. The feeding assembly can cooperate with the feeding and cleaning assembly to disassemble, assemble and collect the drill rods in the feeding assembly. The installation direction of the installation frame can be changed according to the construction environment in the tunnel.

[0006] Preferably, the feeding and cleaning assembly includes hydraulic rods arranged inside the installation frame. The hydraulic rods are fixedly connected to the installation frame. There are two hydraulic rods symmetrically arranged along the center line of the installation frame. On the side of the hydraulic rods close to the drill rig, there is a bracket fixedly arranged. In the middle of the bracket, there is a semi-circular sunk groove for placing drill rods.

[0007] Preferably, on the side of the bracket close to the drill rig, there are several elastic structures fixedly arranged. Each elastic structure is composed of a telescopic snake rod and a spring inside the telescopic rod. At the upper end of the elastic structure, there is a baffle plate fixedly arranged. The length of the part of the baffle plate extending beyond the bracket is the same as the height of the bracket.

[0008] Preferably, on the side of the baffle plate close to the drill rig, there is a scraper frame fixedly arranged. The scraper frame is composed of a fixed frame and multiple levels of scrapers. The scraper frame is hollow. Inside the scrapers of the scraper frame, there are elastic pieces.

[0009] Preferably, the feeding component includes guide rails installed at the upper end of the mounting frame. The mounting frame is U-shaped. Two guide rails are symmetrically arranged along the center line of the mounting frame. The guide rails are divided into upper and lower layers. The end of the guide rail in the lower layer is semicircular, and the end of the guide rail in the upper layer is inclined.

[0010] Preferably, a driving disc is rotatably arranged at the center of the circle of the guide rail. Four card slots are formed on the outer surface of the driving disc. A connecting rod is fixedly arranged between the two driving discs. A storage rack is arranged between the driving discs. The storage rack is in a "C" shape. Reinforcing ribs are fixedly arranged inside the upper end of the storage rack.

[0011] Preferably, mounting pipes are fixedly arranged on both sides of the storage rack. The mounting pipes can enter the card slots on the driving disc and are simultaneously slidably connected to the guide rail. Bolts are rotatably arranged inside the mounting pipes. The bolts are engaged with the storage rack.

[0012] Preferably, the other end of the bolt is provided with two clamping blocks. The opposite surfaces of the clamping blocks are hemispherical. A limiting rod is arranged between the clamping block and the bolt. The limiting rod is fixedly connected to the clamping block. The other end of the limiting rod is located inside the bolt. A part of the limiting rod located inside the bolt can rotate and move horizontally freely inside the limiting rod.

[0013] Preferably, a reset spring is arranged around the limiting rod. The two ends of the reset spring are respectively fixedly connected to the storage rack and the clamping block. A drill rod is arranged between the storage racks. The drill rod is slidably connected to the storage rack. The inner diameter of the drill rod is larger than the outer diameter of the clamping block. Connecting plates are arranged on both sides of the storage rack.

[0014] Preferably, the connecting plate is arranged at the connection between the mounting pipe and the storage rack. The connecting plate consists of two base plates that can rotate around the center of the mounting pipe and a mounting plate that can swing freely. A motor is fixedly arranged on one side of the driving disc. The lower end of the motor is fixedly connected to the mounting frame.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) Under the action of the feeding assembly, the drill rod can be automatically added or removed when the drilling rig is working only by controlling the forward and reverse rotation of the motor and the order of the hydraulic rod movement. This not only shortens the downtime waiting time when loading and unloading the drill rod, but also reduces the number of workers required, and does not require workers to manually align and move the drill rod, thereby shortening the time and reducing the workload of a single worker; secondly, the coordination between the storage rack and the connecting plate in the feeding assembly means that when workers transport the drill rod, there is no need to use additional storage containers. Only the storage rack is needed for workers to stack them, thereby improving the convenience of transportation. After the storage rack is connected through the connecting plate, it can not only be rolled up, but also offset within a certain range. In this way, the feeding assembly can still work normally when the space is relatively limited, and workers can place the storage rack at the end through an additional bracket. The tunnel is located in a relatively open area, which can provide workers with a more comfortable construction environment and improve the adaptability of the device. Finally, after the drill rod is reinstalled on the storage rack, the worker only needs to tighten the bolts to completely fix the drill rod, which can facilitate transportation while preventing a large number of core sample fragments inside it from falling, so as to facilitate subsequent sampling work. It is worth mentioning that when using the storage rack, the storage rack and the drill rod can be paired only by arranging the disassembly sequence reasonably, so that the storage rack can be stamped with a steel stamp to facilitate workers to intuitively know the use time and remaining service life of the drill rod. Moreover, the device as a whole has only one motor and a pair of hydraulic rods as driving components, which can not only reduce costs during production and maintenance, but also shorten the time required during actual debugging. In addition, the device can also reduce the demand for energy while meeting the above requirements, achieving environmental protection effects. (2) Under the action of the loading assembly, it is only necessary to control the hydraulic rod to clean the surface of the drill pipe while completing the loading and unloading, thereby reducing the residue of sand and mud, which can facilitate subsequent collection and sampling work, and can also reduce the probability of the steel stamp on the surface of the storage rack being covered, reducing the work intensity of the drill pipe and the storage rack during maintenance. In addition, the cooperation between the spring clip and the scraper in the scraper rack can use the rebound force of the spring clip to throw out the mud on the scraper surface after scraping off the impurities, so as to avoid the mud from adhering to the scraper surface after drying. It is worth mentioning that under the action of the spring clip, if encountering larger mud blocks, gravel, etc., the scraper can automatically avoid it, reducing the loss of the scraper, and automatically discharge it when the spring clip vibrates or discharge it by manual toggle, thereby extending the service life of the scraper and reducing the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the position relationship between the mounting frame and the drilling rig of the present invention; Figure 3 For the present inventionFigure 2 Schematic enlarged structure diagram at position A in [the figure]; Figure 4 Schematic enlarged partial structure diagram of the feeding component of the present invention; Figure 5 Schematic structure diagram of the mounting bracket of the present invention; Figure 6 Schematic structure diagram of the feeding component of the present invention; Figure 7 Schematic structure diagram of the feeding component (without drill pipe and storage box) of the present invention; Figure 8 Schematic structure diagram of the storage box of the present invention; Figure 9 Schematic internal structure diagram of the storage box of the present invention; Figure 10 Schematic clamping structure diagram inside the storage box of the present invention.

[0017] In the figure: 1, drilling rig; 101, chassis system; 102, drill tower; 2, mounting bracket; 3, feeding component; 301, hydraulic rod; 302, bracket; 303, elastic structure; 304, baffle; 305, scraper bracket; 4, feeding component; 401, guide rail; 402, driving disc; 403, connecting rod; 404, storage rack; 405, reinforcing rib; 406, mounting pipe; 407, bolt; 408, clamping block; 409, limiting rod; 410, return spring; 411, drill pipe; 412, connecting plate; 413, motor. Detailed implementation manners

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "including" or "comprising" and the like used in the present disclosure mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, and may also include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0020] As Figures 1 to 10 shown, a drilling device for preventing and controlling water in coal mine geology provided by the present invention includes a drilling rig 1 which is composed of a chassis system 101 and a drill rig 102. Above the chassis system 101 and on one side of the drill rig 102, there is an installation frame 2. On one side of the installation frame 2, there is a feeding and cleaning component 3. At the upper end of the installation frame 2, there is a feeding component 4. The feeding component 4 can cooperate with the feeding and cleaning component 3 to disassemble, assemble and collect the drill pipes 411 in the feeding component 4. The installation direction of the installation frame 2 can be changed according to the construction environment in the tunnel.

[0021] The feeding and cleaning component 3 includes hydraulic rods 301 arranged inside the installation frame 2. The hydraulic rods 301 are fixedly connected to the installation frame 2. There are two hydraulic rods 301 symmetrically arranged along the center line of the installation frame 2. On the side of the hydraulic rods 301 close to the drill rig 102, there is a bracket 302 fixedly arranged. In the middle of the bracket 302, there is a semi-circular sunken groove for placing the drill pipes 411.

[0022] On the side of the bracket 302 close to the drill rig 102, there are several elastic structures 303 fixedly arranged. The elastic structures 303 are composed of a telescopic rod and a spring located inside the telescopic rod. At the upper end of the elastic structures 303, there is a baffle 304 fixedly arranged. The length of the part of the baffle 304 extending beyond the bracket 302 is the same as the height of the bracket 302.

[0023] On the side of the baffle 304 close to the drill rig 102, there is a scraper frame 305 fixedly arranged. The scraper frame 305 is composed of a fixed frame and multiple levels of scrapers. The scraper frame 305 is hollow. Inside the scrapers of the scraper frame 305, there are elastic pieces.

[0024] The feeding component 4 includes guide rails 401 installed at the upper end of the installation frame 2. The installation frame 2 is U-shaped. There are two guide rails 401 symmetrically arranged along the center line of the installation frame 2. The guide rails 401 are divided into upper and lower layers. The end of the guide rail 401 in the lower layer is semi-circular, and the end of the guide rail 401 in the upper layer is inclined.

[0025] At the center of the circle of the guide rails 401, there is a driving disc 402 rotatably arranged. On the outer surface of the driving disc 402, there are four card slots. Between the two driving discs 402, there is a connecting rod 403 fixedly arranged. Between the driving discs 402, there is a storage rack 404. The storage rack 404 is in a "C" shape. Inside the upper end of the storage rack 404, there is a reinforcing rib 405 fixedly arranged.

[0026] On both sides of the storage rack 404, there are fixedly arranged mounting pipes 406. The mounting pipes 406 can enter the card slots on the driving disk 402. The mounting pipes 406 are simultaneously slidably connected to the guide rails 401. Inside the mounting pipes 406, there is a bolt 407 rotatably arranged, and the bolt 407 meshes with the storage rack 404.

[0027] At the other end of the bolt 407, there is a clamping block 408. There are two clamping blocks 408 in total. The opposite sides of the clamping blocks 408 are set as hemispheres. Between the clamping blocks 408 and the bolt 407, there is a limiting rod 409. The limiting rod 409 is fixedly connected to the clamping block 408. The other end of the limiting rod 409 is located inside the bolt 407. A part of the limiting rod 409 located inside the bolt 407 can rotate and move horizontally freely within the limiting rod 409.

[0028] Around the limiting rod 409, there is a return spring 410. The two ends of the return spring 410 are respectively fixedly connected to the storage rack 404 and the clamping block 408. Between the storage racks 404, there is a drill rod 411. The drill rod 411 is slidably connected to the storage rack 404. The inner diameter of the drill rod 411 is larger than the outer diameter of the clamping block 408. On both sides of the storage rack 404, there are connecting plates 412.

[0029] The connecting plate 412 is arranged at the connection between the mounting pipe 406 and the storage rack 404. The connecting plate 412 consists of two substrate plates that can rotate around the center of the mounting pipe 406, and a mounting plate that can swing freely. On one side of the driving disk 402, there is a motor 413 fixedly arranged. The lower end of the motor 413 is fixedly connected to the mounting rack 2.

[0030] The working principle and usage process of the present invention: When the drilling rig 1 moves to the construction position and the debugging is completed and starts working, it is divided into two working states: When performing the installation operation on the drill rod 411: First, the hydraulic rod 301 drives the bracket 302 to move backward until it is located at the lowermost end of the driving disk 402. Subsequently, the driving disk 402 rotates clockwise and transports a new drill rod 411 to the material taking position (for the position direction reference Figure 7 ). When the new drill rod 411 is transported to the lowermost end of the driving disk 402, it can enter the placement groove of the bracket 302 smoothly. At this time, the hydraulic rod 301 starts, and the drill rod 411 can be removed from the storage rack 404 and moved to the drill rack 102 by using the placement groove of the bracket 302. Subsequently, the power mechanism on the drill rack 102 grabs the new drill rod 411 and connects it to the drill rod 411 in front. After the connection of the drill rod 411 is completed, the bracket 302 retracts. During the retraction process, the baffle 304 can contract downward smoothly under the action of the inclined surface at its upper end. When it is necessary to install a new drill rod 411 again, repeat the above steps; When performing a disassembly operation on the drill pipe 411, when the drill pipe 411 is pulled out and ready to be separated, the hydraulic rod 301 pushes the bracket 302 towards the drill pipe 411 until the scraper frame 305 fits onto the surface of the drill pipe 411. In this way, when the drill pipe 411 rotates, the sediment and mud adhering to its surface can be scraped off. Also, before the drill pipe 411 is completely separated, the bracket 302 needs to enter below the drill pipe 411 in time to catch it. After the drill pipe 411 is separated, the bracket 302 retracts to directly below the drive disk 402, and under the action of the baffle 304 and the bracket 302, it re-enters the storage rack 404 and is caught by the clamping blocks 408 on both sides. Subsequently, the drive disk 402 rotates counterclockwise (direction reference Figure 7 ) to transport the lowermost storage rack 404 upwards and finally discharge it. Also, while the drive disk 402 rotates, the bracket 302 needs to move forward accordingly and stay between the mounting frame 2 and the drill rig 102, waiting for the next operation; Before construction, the worker first needs to align multiple storage racks 404 equipped with drill pipes 411 and connect them with the connecting plate 412. If the space in the tunnel is sufficient at this time, all the required drill pipes 411 can be connected at once. If the space in the tunnel is limited, the drill pipes 411 can be connected in a small quantity and multiple groups, and when loading, the storage racks 404 are successively stuck under the drive disk 402. After the drill pipe 411 is taken out, the worker can still choose according to the on-site construction environment whether to collect multiple storage racks 404 as a whole and reuse them during unloading, or to disassemble the storage racks 404 into multiple groups and install them back into the card slots of the drive disk 402 successively during unloading; After the drill pipe 411 is placed in the storage rack 404 and slides out of the guide rail 401, the worker can first separate multiple storage racks 404, and then separately screw in the bolts 407 on both sides of each storage rack 404. When the bolts 407 are completely screwed in, their front ends can push against the clamping blocks 408. At this time, the front ends of the clamping blocks 408 are against the outside of the drill pipe 411 and the core sample inside it, so that the entire drill pipe 411 can be fixed. Finally, after being marked by the worker, it can be transported to the ground for sampling and retention.

[0031] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A drilling device for geological water control in coal mines, comprising a drilling rig (1), characterized in that: The drill rig (1) consists of two parts: a chassis system (101) and a drill tower (102). Above the chassis system (101) and on one side of the drill tower (102), there is an installation rack (2). On one side of the installation rack (2), there is a feeding and cleaning component (3). At the upper end of the installation rack (2), there is a feeding component (4). The feeding component (4) can cooperate with the feeding and cleaning component (3) to disassemble, assemble, and collect the drill pipes (411) in the feeding component (4). The installation direction of the installation rack (2) can be changed according to the construction environment in the tunnel.

2. The drilling device for preventing and controlling water in coal mine geology according to claim 1, characterized in that: The feeding and cleaning component (3) includes hydraulic rods (301) arranged inside the installation rack (2). The hydraulic rods (301) are fixedly connected to the installation rack (2). There are two hydraulic rods (301) symmetrically arranged along the center line of the installation rack (2). On the side of the hydraulic rods (301) close to the drill tower (102), there is a bracket (302) fixedly arranged. In the middle of the bracket (302), there is a semi-circular sunk groove for placing the drill pipes (411).

3. The drilling device for preventing and controlling water in coal mine geology according to claim 2, characterized in that: On the side of the bracket (302) close to the drill tower (102), there is an elastic structure (303) fixedly arranged. There are several elastic structures (303). The elastic structure (303) consists of a telescopic snake rod and a spring located inside the telescopic rod. At the upper end of the elastic structure (303), there is a baffle (304) fixedly arranged. The length of the part of the baffle (304) extending beyond the bracket (302) is the same as the height of the bracket (302).

4. The drilling device for preventing and controlling water in coal mine geology according to claim 3, characterized in that: On the side of the baffle (304) close to the drill tower (102), there is a scraper rack (305) fixedly arranged. The scraper rack (305) consists of a fixed rack and multiple levels of scrapers. The scraper rack (305) is hollow. Inside the scrapers of the scraper rack (305), there are elastic pieces.

5. A drilling device for preventing and controlling water in coal mine geology according to claim 1, characterized in that: The feeding component (4) includes guide rails (401) installed at the upper end of the installation rack (2). The installation rack (2) is U-shaped. There are two guide rails (401) symmetrically arranged along the center line of the installation rack (2). The guide rails (401) are divided into upper and lower layers. The end of the guide rail (401) in the lower layer is semi-circular, and the end of the guide rail (401) in the upper layer is inclined.

6. The drilling device for preventing and controlling water in coal mine geology according to claim 5, characterized in that: At the center of the circle of the guide rail (401), there is a driving disk (402) rotatably arranged. On the outer surface of the driving disk (402), there are four card slots. Between the two driving disks (402), there is a connecting rod (403) fixedly arranged. Between the driving disks (402), there is a storage rack (404). The storage rack (404) is in a "C" shape. Inside the upper end of the storage rack (404), there is a reinforcing rib (405) fixedly arranged.

7. A drilling device for preventing and controlling water in coal mine geology according to claim 6, characterized in that: On both sides of the storage rack (404), mounting pipes (406) are fixedly arranged. The mounting pipes (406) can enter the card slots on the driving disc (402). The mounting pipes (406) are simultaneously slidably connected to the guide rails (401). A bolt (407) is rotatably arranged inside the mounting pipes (406), and the bolt (407) meshes with the storage rack (404).

8. A drilling device for preventing and controlling water in coal mine geology according to claim 7, characterized in that: At the other end of the bolt (407), there are two clamping blocks (408). The opposite surfaces of the clamping blocks (408) are hemispherical. A limiting rod (409) is arranged between the clamping blocks (408) and the bolt (407). The limiting rod (409) is fixedly connected to the clamping block (408). The other end of the limiting rod (409) is located inside the bolt (407), and a part of the limiting rod (409) located inside the bolt (407) can rotate and move horizontally freely within the limiting rod (409).

9. The drilling device for preventing and controlling water in coal mine geology according to claim 8, characterized in that: A return spring (410) is arranged around the limiting rod (409). The two ends of the return spring (410) are respectively fixedly connected to the storage rack (404) and the clamping block (408). A drill rod (411) is arranged between the storage racks (404). The drill rod (411) is slidably connected to the storage rack (404). The inner diameter of the drill rod (411) is larger than the outer diameter of the clamping block (408). Connecting plates (412) are arranged on both sides of the storage rack (404).

10. A drilling device for water control in coal mine geology according to claim 9, characterized in that: The connecting plates (412) are arranged at the connection between the mounting pipes (406) and the storage rack (404). The connecting plates (412) consist of two substrate plates that can rotate around the center of the mounting pipe (406), and a mounting plate that can swing freely. On one side of the driving disc (402), a motor (413) is fixedly arranged. The lower end of the motor (413) is fixedly connected to the mounting rack (2).

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