Drilling equipment for underground geological exploration of coal mine

Abstract

The utility model discloses drilling equipment for coal mine underground geological exploration, and relates to the technical field of geological exploration. The device comprises a mounting frame and a rotating plate, a drilling assembly is arranged below the rotating plate, and dust falling assemblies are arranged on the two sides of the upper portion of the rotating plate; an electric push rod in the drilling assembly is fixedly connected to the center of the upper surface of a rotating plate, a piston shaft of the electric push rod movably penetrates through the rotating plate and is fixedly connected with a mounting plate, a concentric-square-shaped frame is fixedly connected to the lower surface of the mounting plate, a movable block is movably connected into the concentric-square-shaped frame, and second sliding blocks are movably connected to the outer walls of the periphery of the concentric-square-shaped frame. The movable block in the frame shaped like the Chinese character'hui 'is used for driving the mounting box and the drill bit to move in the transverse direction and the longitudinal direction, the problem that in the prior art, drilling positioning is not convenient to conduct is solved, and raised dust generated in the drilling process is absorbed and filtered through the dust collection fan and the filter screen; the problem that in the prior art, the dust raising phenomenon cannot be conveniently avoided in the drilling process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological exploration, and particularly relates to a drilling device for underground geological exploration in coal mines. Background Technique

[0002] A coal mine is a reasonable space excavated by humans when mining geological strata rich in coal, usually including roadways, shafts, and working faces, etc. During the coal mine mining process, in order to enhance its safety, geological exploration is usually carried out in the coal mine. At the same time, in order to facilitate geological exploration work, a drilling device is generally used to drill and sample the underground of the coal mine through the drilling device;

[0003] A document with the publication number of CN221400381U discloses a drilling device for underground geological exploration in coal mines, including a frame, a support plate, a rotating cylinder, and a drilling machine body. The top of the frame is fixedly connected with a support plate. The center of the top of the support plate is provided with a U-shaped installation groove. Both sides of the inner wall of the U-shaped installation groove are rotatably connected with a rotating cylinder through a rotating shaft. An expansion and adjustment assembly is connected inside the rotating cylinder. The expansion and adjustment assembly extends to the outside of the rotating cylinder and is connected with an installation frame. The drilling machine body is installed inside the installation frame;

[0004] However, it still has the following drawbacks in actual use:

[0005] 1. For the above-mentioned drilling device, an expansion and adjustment assembly is connected inside the rotating cylinder. The expansion and adjustment assembly extends to the outside of the rotating cylinder and is connected with an installation frame. The drilling machine body is installed inside the installation frame. The underground of the coal mine is drilled through the drilling machine body. However, during the use process, due to the large size of the overall device, it is not convenient for drilling positioning, resulting in poor drilling accuracy;

[0006] 2. For the above-mentioned drilling device, a rotating cylinder is rotatably connected to the frame. An expansion and adjustment assembly is connected inside the rotating cylinder. The expansion and adjustment assembly extends to the outside of the rotating cylinder and is connected with an installation frame. The drilling machine body is installed inside the installation frame. The underground of the coal mine is drilled through the drilling machine body. However, during the use process, it is not convenient to avoid dust generation during drilling, resulting in a large amount of dust during drilling and affecting the safety of the staff.

[0007] Therefore, we provide a drilling device for underground geological exploration in coal mines to solve the above problems. Content of the Utility Model

[0008] The purpose of the present utility model is to provide a drilling device for underground geological exploration in coal mines. The movable block within the square frame drives the installation box and the drill bit to move horizontally and vertically, solving the problem that the existing device is not convenient for drilling positioning. And a dust suction fan and a filter screen are used to absorb and filter the dust generated during the drilling process, solving the problem that the existing device is not convenient for avoiding the phenomenon of dust during the drilling process.

[0009] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0010] The present utility model is a drilling device for underground geological exploration in coal mines, including mounting frames located on both sides respectively and a rotating plate rotatably connected between the mounting frames. A drilling assembly is arranged below the rotating plate, and dust reduction assemblies are arranged on both sides above the rotating plate;

[0011] The electric push rod in the drilling assembly is fixedly connected to the center position of the upper surface of the rotating plate. The piston rod of the electric push rod movably penetrates the rotating plate and is fixedly connected to a mounting plate. The lower surface of the mounting plate is fixedly connected to a square frame. An inner movable block is movably connected within the square frame. Second sliders are movably connected to the outer peripheral walls of the four sides of the square frame. Second threaded rods penetrate through the second sliders located in the front and one side. One ends of the two second threaded rods located outside the square frame are fixedly connected to second knobs respectively. One ends of the two second threaded rods located inside the square frame are respectively fixedly connected to the front end face and one side outer wall of the movable block. The bottom of the movable block is welded with an installation box, and a drill bit is rotatably connected below the installation box;

[0012] The dust reduction boxes in the dust reduction assemblies are respectively fixedly connected to both sides of the upper surface of the rotating plate. Above the front end face of the dust reduction box is fixedly connected with a dust suction fan. The air outlet end of the dust suction fan is fixedly communicated with a first connecting pipe. One end of the first connecting pipe away from the dust suction fan penetrates through the lower part of the front end face of the dust reduction box and extends to the lower part inside the dust reduction box. The air inlet end of the dust suction fan is fixedly communicated with a second connecting pipe. One end of the second connecting pipe away from the dust suction fan is fixedly communicated with a gas collecting hood. A plurality of groups of mounting frames are fixedly connected in the dust reduction box at equal intervals along the vertical direction, and filter screens are fixedly connected inside the mounting frames.

[0013] The further setting of the present utility model is: Mounting rods are welded on the outer peripheral walls of both sides of the rotating plate. One ends of the two mounting rods away from the rotating plate rotatably penetrate through the mounting frames and are respectively welded with a handle and a turntable. A plurality of groups of positioning holes are circumferentially and equally spaced on the outer wall of the turntable. A positioning plate is movably connected to the side of the turntable away from the mounting rod. A positioning column is welded on one side outer wall of the positioning plate, and the positioning holes and the positioning column are in clearance fit with each other.

[0014] A further setting of the present utility model is that a fixed frame is fixedly connected to the outer wall of one side of the mounting frame. A first threaded rod is rotatably connected inside the fixed frame. One end of the first threaded rod rotatably penetrates through the outer wall of one side of the fixed frame and is fixedly connected to a first knob. A first slider is threadedly sleeved on the outer wall of the first threaded rod. The lower surface of the positioning plate is welded to the top of the first slider.

[0015] A further setting of the present utility model is that sliding grooves are provided on the outer walls of the four sides of the square frame. Slide rods are fixedly connected to the upper and lower sides inside the sliding grooves. The upper and lower ends of the second slider are slidably sleeved on the outer walls of the slide rods. Return springs are welded to the outer walls on both sides of the second slider. The ends of the return springs far from the second slider are respectively fixedly connected to the inner walls on both sides of the sliding groove.

[0016] A further setting of the present utility model is that limiting rods are welded to the rear end face and the outer wall on the other side of the movable block. The ends of the limiting rods far from the movable block respectively movably penetrate through the second sliders located at the rear and on the other side and are threadedly sleeved with limiting nuts.

[0017] A further setting of the present utility model is that a box cover is snap-connected to the front end of the installation box. A plurality of heat dissipation holes are equidistantly provided on the outer walls on both sides of the installation box. A heat dissipation fan is fixedly connected to the inner top of the installation box. A driving motor is fixedly connected to the inner bottom of the installation box. The output shaft of the driving motor rotatably penetrates through the bottom of the installation box and is fixedly connected to the top end of the drill bit.

[0018] A further setting of the present utility model is that a side plate is snap-connected to one side of the dust reduction box. Exhaust pipes penetrate through the upper part of the rear end face of the dust reduction box. Exhaust valves are fixedly connected to the rear ends of the exhaust pipes.

[0019] A further setting of the present utility model is that collar rings are sleeved on the outer walls of the second connecting pipes. The rear ends of the collar rings are respectively welded to both sides of the front end face of the rotating plate.

[0020] A further setting of the present utility model is that semi-circular plates are welded to the bottoms of the air collection hoods. A plurality of through holes are equidistantly provided on the surfaces of the semi-circular plates along the circumferential direction. Ear seats are welded to the front and rear ends of the upper surfaces of the semi-circular plates. Strong magnets are fixedly connected to one side of each ear seat.

[0021] The present utility model has the following beneficial effects:

[0022] 1. By setting the drilling assembly in the present utility model, when the second knob is rotated, the second knob drives the second threaded rod to rotate synchronously. And under the action of the threaded connection between the second threaded rod and the second slider, the second threaded rod drives the movable block to move, and drives the installation box and the drill bit to move through the movable block, realizing the positioning of the drill bit, facilitating the positioning of the drill bit, and thus improving the accuracy of drilling.

[0023] 2. By setting up a dust reduction component, the present utility model places the air collecting hoods on both sides of the drilling position respectively, and starts the dust suction fan. Under the action of the dust suction fan, the dust in the air collecting hoods enters the dust reduction box successively through the second connecting pipe and the first connecting pipe, and the dust is filtered by the filter screen in the dust reduction box, avoiding the phenomenon of dust during the drilling process and increasing the safety of the staff.

[0024] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of a drilling device for underground geological exploration in coal mines;

[0027] Figure 2 It is a schematic diagram of the structure of the rotating plate of the present utility model;

[0028] Figure 3 It is an exploded view of the structure of the positioning plate of the present utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the drilling component of the present utility model;

[0030] Figure 5 It is an exploded view of the structure of the square frame of the present utility model;

[0031] Figure 6 It is an exploded view of the structure of the installation box of the present utility model;

[0032] Figure 7 It is a schematic diagram of the structure of the dust reduction component of the present utility model;

[0033] Figure 8 It is an exploded view of the structure of the dust reduction box of the present utility model;

[0034] Figure 9 It is a schematic diagram of the structure of the air collecting hood of the present utility model.

[0035] In the drawings, the list of components represented by each reference numeral is as follows:

[0036] 1 - Mounting frame, 2 - Rotating plate, 201 - Mounting rod, 202 - Handle, 203 - Turntable, 203a - Positioning hole, 204 - Positioning plate, 204a - Positioning post, 204b - Fixed frame, 204c - First threaded rod, 204d - First knob, 204e - First slider, 205 - Collar, 3 - Drilling assembly, 301 - Electric push rod, 302 - Mounting plate, 303 - Square frame, 303a - Chute, 303b - Slide bar, 303c - Second slider, 303d - Return spring, 304 - Movable block, 304a - Second threaded rod, 304b - Second knob, 304c - Limiting rod, 304d - Limiting nut, 305 - Mounting box, 305a - Box cover, 305b - Heat dissipation hole, 305c - Heat dissipation fan, 306 - Drill bit, 306a - Driving motor, 4 - Dust reduction assembly, 401 - Dust reduction box, 401a - Side plate, 401b - Exhaust pipe, 401c - Exhaust valve, 402 - Dust suction fan, 402a - First connecting pipe, 402b - Second connecting pipe, 403 - Air collecting hood, 403a - Semi - arc plate, 403b - Through hole, 403c - Ear seat, 403d - Strong magnet, 404 - Mounting frame, 405 - Filter screen. Detailed implementation mode

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0038] Embodiment 1

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in

[0040] Specifically, the electric push rod 301 is fixedly connected to the center position of the upper surface of the rotating plate 2. The piston rod of the electric push rod 301 movably penetrates through the rotating plate 2 and is fixedly connected to a mounting plate 302. A square frame 303 is fixedly connected to the lower surface of the mounting plate 302. An active block 304 is movably connected inside the square frame 303. Second sliders 303c are movably connected to the outer walls around the square frame 303. Second threaded rods 304a are threaded through the second sliders 303c located in the front and one side. At one end of the two second threaded rods 304a located outside the square frame 303, second knobs 304b are fixedly connected. At one end of the two second threaded rods 304a located inside the square frame 303, they are respectively fixedly connected to the front end face and one side outer wall of the active block 304. A mounting box 305 is welded to the bottom of the active block 304. A drill bit 306 is rotatably connected below the mounting box 305. The electric push rod 301 and the mounting plate 302 are provided to adjust the height of the drill bit 306. The square frame 303 and the active block 304 are provided to movably mount the mounting box 305 on the mounting plate 302. The second sliders 303c and the second threaded rods 304a are provided to movably mount the active block 304 inside the square frame 303. The second knobs 304b are provided to facilitate the rotation of the second threaded rods 304a. The mounting box 305 is provided to mount the drill bit 306, and the drill bit 306 is provided to drill and sample in the coal mine underground.

[0041] Furthermore, mounting rods 201 are welded to the outer walls on both sides of the rotating plate 2. At one end of the two mounting rods 201 away from the rotating plate 2, they rotatably penetrate through the mounting frame 1 and are respectively welded with a handle 202 and a turntable 203. A plurality of groups of positioning holes 203a are circumferentially and equally spaced on the outer wall of the turntable 203. A positioning plate 204 is movably connected to the side of the turntable 203 away from the mounting rod 201. A positioning post 204a is welded to one side outer wall of the positioning plate 204. The positioning holes 203a and the positioning post 204a are in clearance fit with each other.

[0042] A fixed frame 204b is fixedly connected to one side outer wall of the mounting frame 1. A first threaded rod 204c is rotatably connected inside the fixed frame 204b. One end of the first threaded rod 204c rotatably penetrates through one side outer wall of the fixed frame 204b and is fixedly connected to a first knob 204d. A first slider 204e is threadedly sleeved on the outer wall of the first threaded rod 204c. The lower surface of the positioning plate 204 is welded to the top of the first slider 204e.

[0043] Sliding grooves 303a are provided on the outer walls around the square frame 303. Slide bars 303b are fixedly connected to the upper and lower sides inside the sliding grooves 303a. The upper and lower ends of the second slider 303c are slidably sleeved on the outer walls of the slide bars 303b. Return springs 303d are welded on the outer walls on both sides of the second slider 303c. The ends of the return springs 303d away from the second slider 303c are fixedly connected to the inner walls on both sides of the sliding grooves 303a respectively;

[0044] Limiting rods 304c are welded on the rear end face and the outer wall on the other side of the movable block 304. The ends of the limiting rods 304c away from the movable block 304 respectively pass through the second slider 303c located at the rear and on the other side movably and are threadedly sleeved with limiting nuts 304d;

[0045] A box cover 305a is clamped at the front end of the installation box 305. A plurality of heat dissipation holes 305b are equidistantly arranged on the outer walls on both sides of the installation box 305. A heat dissipation fan 305c is fixedly connected to the inner top of the installation box 305. A driving motor 306a is fixedly connected to the inner bottom of the installation box 305. The output shaft of the driving motor 306a rotates through the bottom of the installation box 305 and is fixedly connected to the top end of the drill bit 306.

[0046] The operation process of this embodiment is as follows: Rotate the second knob 304b. The second knob 304b drives the second threaded rod 304a to rotate synchronously. And under the action of the threaded connection between the second threaded rod 304a and the second slider 303c, the second threaded rod 304a drives the movable block 304 to move, and drives the installation box 305 and the drill bit 306 to move through the movable block 304, realizing the positioning of the drill bit 306. Then start the driving motor 306a. The output shaft of the driving motor 306a drives the drill bit 306 to rotate, and drills and samples the coal mine underground through the drill bit 306, realizing the geological exploration work of the coal mine underground.

[0047] Embodiment 2

[0048] Please refer to Figure 1 、 Figure 7 、 Figure 8 and Figure 9 As shown in

[0049] Specifically, the dust settling box 401 is fixedly connected to both sides of the upper surface of the rotating plate 2 respectively. Above the front end face of the dust settling box 401, a dust suction fan 402 is fixedly connected. The air outlet end of the dust suction fan 402 is fixedly communicated with a first connecting pipe 402a. One end of the first connecting pipe 402a away from the dust suction fan 402 penetrates through the lower part of the front end face of the dust settling box 401 and extends to the lower part inside the dust settling box 401. The air inlet end of the dust suction fan 402 is fixedly communicated with a second connecting pipe 402b. One end of the second connecting pipe 402b away from the dust suction fan 402 is fixedly communicated with an air collecting hood 403. Inside the dust settling box 401, a plurality of mounting frames 404 are fixedly connected at equal intervals along the vertical direction. Filter screens 405 are fixedly connected inside the mounting frames 404. The dust settling box 401 is provided to filter the dust. The dust suction fan 402, the first connecting pipe 402a and the second connecting pipe 402b are provided to suck the dust in the air collecting hood 403 into the dust settling box 401. The air collecting hood 403 is provided to shield the drilling position. The mounting frames 404 are provided to mount the filter screens 405. The filter screens 405 are provided to filter the dust.

[0050] Further, a side plate 401a is clamped on one side of the dust settling box 401. Exhaust pipes 401b penetrate through the upper part of the rear end face of the dust settling box 401. Exhaust valves 401c are fixedly connected to the rear ends of the exhaust pipes 401b.

[0051] Collars 205 are sleeved on the outer walls of the second connecting pipes 402b. The rear ends of the collars 205 are welded to both sides of the front end face of the rotating plate 2 respectively.

[0052] Semicircular arc plates 403a are welded to the bottoms of the air collecting hoods 403. A plurality of through holes 403b are arranged at equal intervals along the circumferential direction on the surfaces of the semicircular arc plates 403a. Ear seats 403c are welded to the front and rear ends of the upper surfaces of the semicircular arc plates 403a. Strong magnets 403d are fixedly connected to one sides of the ear seats 403c.

[0053] The rest of the structure is the same as that of Embodiment 1.

[0054] The operation process of this embodiment is as follows: First, place the air collecting hoods 403 on both sides of the drilling position respectively, and start the dust suction fan 402. Under the action of the dust suction fan 402, the dust in the air collecting hood 403 enters the dust settling box 401 in sequence through the second connecting pipe 402b and the first connecting pipe 402a, and the filter screen 405 in the dust settling box 401 is used to filter the dust. Finally, the gas in the dust settling box 401 is discharged through the exhaust pipe 401b.

[0055] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0056] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A drilling device for underground geological exploration in coal mines, comprising mounting frames (1) respectively located on two sides and a rotating plate (2) rotatably connected between the mounting frames (1), characterized in that: A drilling assembly (3) is provided below the rotating plate (2), and dust reduction assemblies (4) are provided on both sides above the rotating plate (2); The electric push rod (301) in the drilling assembly (3) is fixedly connected to the center position of the upper surface of the rotating plate (2), and the piston shaft of the electric push rod (301) movably penetrates the rotating plate (2) and is fixedly connected to the mounting plate (302), the lower surface of the mounting plate (302) is fixedly connected to the back-shaped frame (303), and the inside of the back-shaped frame (303) is movably connected to the movable block (304), the outer walls of the back-shaped frame (303) are all movably connected to the second sliding block (303c), and the second sliding block (303c) located at the front and one side is fixedly connected to the back-shaped frame (303). A second threaded rod (304a) is threadedly penetrated on the slider (303c), and one end of the two second threaded rods (304a) located outside the circle frame (303) is fixedly connected to a second knob (304b), and one end of the two second threaded rods (304a) located inside the circle frame (303) is respectively fixedly connected to the front end surface and one side outer wall of the movable block (304), and a mounting box (305) is welded to the bottom of the movable block (304), and a drill bit (306) is rotatably connected to the bottom of the mounting box (305); The dust removal box (401) in the dust removal assembly (4) is fixedly connected to both sides of the upper surface of the rotating plate (2), and a dust suction fan (402) is fixedly connected above the front end surface of the dust removal box (401); the air outlet end of the dust suction fan (402) is fixedly connected to a first connecting pipe (402a), and the end of the first connecting pipe (402a) away from the dust suction fan (402) passes through the bottom of the front end surface of the dust removal box (401) and extends to the bottom of the interior of the dust removal box (401); the air inlet end of the dust suction fan (402) is fixedly connected to a second connecting pipe (402b), and the end of the second connecting pipe (402b) away from the dust suction fan (402) is fixedly connected to an air collecting hood (403); a plurality of installation frames (404) are fixedly connected to the interior of the dust removal box (401) at equal intervals in the vertical direction, and the interiors of the installation frames (404) are all fixedly connected to filter screens (405).

2. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: Mounting rods (201) are welded to the outer walls of both sides of the rotating plate (2), and the ends of the two mounting rods (201) away from the rotating plate (2) are rotated to penetrate the mounting frame (1) and are respectively welded with handles (202) and a rotating disk (203), a plurality of groups of positioning holes (203a) are arranged on the outer wall of the rotating disk (203) at equal intervals along the circumferential direction, and a positioning plate (204) is movably connected to the side of the rotating disk (203) away from the mounting rods (201), a positioning column (204a) is welded to the outer wall of one side of the positioning plate (204), and the positioning holes (203a) and the positioning columns (204a) are clearance-matched with each other.

3. The drilling equipment for underground geological exploration in coal mines according to claim 2, characterized in that: A fixing frame (204b) is fixedly connected to an outer wall of one side of the mounting frame (1), and a first threaded rod (204c) is rotatably connected inside the fixing frame (204b), one end of the first threaded rod (204c) is rotatably passed through an outer wall of one side of the fixing frame (204b) and is fixedly connected to a first knob (204d), and a first slider (204e) is threadedly sleeved on the outer wall of the first threaded rod (204c), and the lower surface of the positioning plate (204) is welded to the top of the first slider (204e).

4. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: The outer walls of the return frame (303) are all provided with sliding grooves (303a), and the upper and lower parts of the sliding grooves (303a) are fixedly connected with sliding rods (303b), the upper and lower ends of the second sliding block (303c) are slidably mounted on the outer walls of the sliding rods (303b), and the outer walls of both sides of the second sliding block (303c) are welded with return springs (303d), and the end of the return spring (303d) away from the second sliding block (303c) is fixedly connected to the inner walls of both sides of the sliding groove (303a).

5. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: A limiting rod (304c) is welded on the rear end face and the other side outer wall of the movable block (304), and one end of the limiting rod (304c) away from the movable block (304) movably penetrates the second sliding block (303c) located at the rear and the other side and is threadedly sleeved with a limiting nut (304d).

6. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: The front end of the installation box (305) is clamped with a box cover (305a), and the outer walls on both sides of the installation box (305) are evenly spaced with a plurality of heat dissipation holes (305b), the inner top of the installation box (305) is fixedly connected to a heat dissipation fan (305c), and the inner bottom of the installation box (305) is fixedly connected to a drive motor (306a), and the output shaft of the drive motor (306a) rotates through the bottom of the installation box (305) and is fixedly connected to the top of the drill bit (306).

7. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: A side plate (401a) is clamped on one side of the dust reduction box (401), and an exhaust pipe (401b) is passed through the upper part of the rear end surface of the dust reduction box (401), and an exhaust valve (401c) is fixedly connected to the rear end of the exhaust pipe (401b).

8. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: The outer wall of the second connecting pipe (402b) is sleeved with a collar (205), and the rear ends of the collar (205) are respectively welded to both sides of the front end surface of the rotating plate (2).

9. The drilling equipment for underground geological exploration in coal mines according to claim 1, characterized in that: A semi-arc plate (403a) is welded to the bottom of the gas collecting hood (403), and a plurality of through holes (403b) are provided on the surface of the semi-arc plate (403a) at equal intervals along the circumferential direction; ear seats (403c) are welded to the front and rear ends of the upper surface of the semi-arc plate (403a), and a strong magnet (403d) is fixedly connected to one side of the ear seat (403c).

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