Coal geological exploration drilling equipment

Abstract

The present invention provides a coal geological exploration drilling device, belonging to the technical field of exploration drilling equipment. It comprises a drilling rig, the drilling rig comprising a connected body, a movable plate frame, and a drill rod; a reaming and collecting mechanism, the reaming and collecting mechanism being connected to the drill rod; the reaming and collecting mechanism comprising a reaming assembly for adjusting the borehole diameters of different coal geological exploration boreholes, and a collecting assembly for collecting exploration materials and having cooling and flushing effects; the reaming assembly comprising a connected reciprocating screw, a drill bit, and a reaming unit, the reciprocating screw comprising a connected screw and a ball nut, the screw and the drill rod being fixedly connected. By providing the reaming and collecting mechanism, the present invention can not only adjust the borehole diameter, but also speed up the drilling speed, improve work efficiency, collect exploration materials in layers, further facilitate the use of exploration materials, clean the exploration materials, and cool the drill bit.

Description

Technical Field

[0001] The present invention relates to the technical field of exploration drilling equipment, in particular to coal geological exploration drilling equipment. Background Art

[0002] Existing coal geology requires drilling holes of different diameters according to the coal geology during exploration. However, the coal geological exploration drilling equipment needs to replace the drill bit to adjust the borehole diameter during use, and the operation process is relatively cumbersome. At the same time, the drill bit needs to be stopped from time to time during drilling to prevent the drill bit from cracking or even being damaged due to overheating, which affects the progress of exploration drilling. In addition, when collecting exploration materials, minerals are generally extracted by starting a water pump. However, a large amount of exploration materials and mud containing exploration materials will be extracted together during extraction. When analyzing the exploration materials, other equipment is required for separation operations. At the same time, the extracted exploration materials need to be cleaned and screened. The operation process is relatively cumbersome. If the extraction volume is large, the exploration materials may overflow the storage container and cause infection. If they are directly drained into a pit, they will not be accurately evaluated due to the influence of the environment and ground materials, and will affect the surrounding environment. Therefore, the present application provides a coal geological exploration drilling equipment to meet the needs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a coal geological exploration drilling equipment to solve the problem that the existing coal geological exploration drilling equipment needs to replace the drill bit according to the coal geology to adjust the aperture of the drill hole, and the operation process is relatively cumbersome. At the same time, the drill bit needs to stop the drill rig from time to time to cool down during drilling. In addition, when collecting exploration materials, minerals are generally extracted by starting a water pumping equipment. However, the extraction of exploration materials requires separation operations through other equipment. At the same time, the extracted exploration materials need to be cleaned and screened. The operation process is relatively cumbersome. If the extraction volume is large, the exploration materials may overflow the storage container and cause infection. If they are directly drained into a pit, they will not be accurately evaluated due to the influence of the environment and ground materials, and will affect the surrounding environment.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A coal geological exploration drilling device, including a drilling rig, which includes a connected body, a movable plate frame and a drill rod; a hole expansion and collection mechanism, which is connected to the drill rod; the hole expansion and collection mechanism includes a hole expansion component for adjusting the aperture of different coal geological exploration drill holes, and a collection component for collecting exploration materials and having cooling and flushing effects; the hole expansion component includes a connected reciprocating screw, a drill bit and a hole expansion unit, the reciprocating screw includes a connected screw and a ball nut, the screw and the drill rod are fixedly connected, and the ball nut is connected to the hole expansion unit; the collection component includes a connected collection unit and a cooling and flushing unit, and the collection unit is connected to the hole expansion unit.

[0006] Optionally, the reaming unit includes a disc rotatably connected to the bottom end of the ball nut, and the outer wall of the disc is provided with a plurality of first rotation grooves distributed in a circular array, a connecting rod is rotatably connected in the first rotation groove, and the other end of the connecting rod is connected to a universal ball, and the universal ball includes a universal ball head and a universal ball sleeve connected to the connecting rod, and the universal ball head is fixedly connected to the connecting rod, and the plurality of universal ball sleeves are commonly connected to a reaming component, and a plurality of L-shaped rods are connected below the reaming component, and a threaded sleeve is commonly arranged between the plurality of L-shaped rods, and the threaded sleeve is fixedly connected to the drill bit through a thread.

[0007] Optionally, the hole expanding component includes a plurality of drill plates distributed in a circular array, and a fence plate is commonly connected between two adjacent drill plates.

[0008] Optionally, the drill plate is arranged in a triangular shape, and the drill plate includes an inner panel, a first side panel, a second side panel, a top panel and a bottom panel that are connected to each other. The first side panel is arranged in an inwardly concave flip shape, and the second side panel is arranged in an outwardly convex flip shape. The fence panel is made of a deformable material, and the inner panel is arranged in an inwardly concave flip shape. The inner panel is fixedly connected to the universal ball sleeve, and the bottom panel is fixedly connected to the L-shaped rod. Multiple inner panels and multiple fence panels form an installation cavity.

[0009] Optionally, a plurality of arcuate grooves distributed in a circular array are provided on the top of the threaded sleeve, and the L-shaped rod is rotatably connected to the arcuate grooves.

[0010] Optionally, the collecting unit includes a collecting cylinder arranged in the installation cavity, the outer wall of the collecting cylinder is fitted with the inner panel and the fence plate, the top of the collecting cylinder is provided with a positioning groove, the positioning groove is fitted with the universal ball sleeve, the bottom end of the collecting cylinder is fixedly connected to a third annular plate, the collecting cylinder is fixedly connected to a first annular plate, and a second annular plate fixedly connected to the inner wall of the collecting cylinder is provided below the first annular plate.

[0011] Optionally, the cooling and flushing unit includes a first annular water pipe fixedly connected to the bottom end opening of the first annular plate, the first annular water pipe is sleeved on the screw and fits with the screw, a plurality of interconnected cooling water pipes and a plurality of interconnected first water pipes are fixedly connected to the first annular water pipe, one end of the cooling water pipe passes through the third annular plate and the second annular plate and is close to the outside of the threaded sleeve, the cooling water pipe is fixedly connected to the second annular plate and the third annular plate, a plurality of the first water pipes are commonly fixedly connected to a interconnected second annular water pipe, a interconnected water inlet pipe is fixedly connected to the second annular water pipe, and a plurality of water spray holes are provided on the first water pipe.

[0012] Optionally, the openings from the top to the bottom of the first annular plate decrease in size, and the first annular plate is arranged in a funnel shape.

[0013] Optionally, the collecting cylinder, the first annular plate, the second annular plate and the third annular plate are all made of deformable materials, and the inner rings of the second annular plate and the third annular plate are both in contact with the outer wall of the lead screw.

[0014] Optionally, the first annular plate is provided with a plurality of first leakage holes, the second annular plate is provided with a plurality of second leakage holes, and the third annular plate is provided with a plurality of third leakage holes. The aperture of the first leakage hole is larger than that of the second leakage hole, and the aperture of the second leakage hole is larger than that of the third leakage hole.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above solution, by providing the hole expansion assembly, not only the diameter of the drilled hole can be adjusted, but also the drilling speed can be accelerated, thereby improving work efficiency.

[0017] By setting up a collecting component, the exploration materials can be collected in layers, which further facilitates the use of the exploration materials. At the same time, the exploration materials can be cleaned and the drill bit can be cooled.

[0018] In summary, the present invention can not only adjust the aperture of the drill hole by setting up a hole expansion and collection mechanism, but also speed up the drilling speed, improve work efficiency, collect the exploration materials in layers, further facilitate the use of the exploration materials, and at the same time clean the exploration materials and cool the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of coal geological exploration drilling equipment;

[0021] Figure 2 It is an enlarged three-dimensional structural diagram of the reaming and collecting mechanism;

[0022] Figure 3 for Figure 2 A partially enlarged schematic diagram of the three-dimensional structure;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross-section and enlarged structure;

[0024] Figure 5 It is a schematic diagram of a three-dimensional enlarged cross-section of the receiving assembly;

[0025] Figure 6 for Figure 2 Schematic diagram of the second perspective stereoscopic magnification structure.

[0026] Reference numerals:

[0027] 1. Drilling rig; 101. Machine body; 102. Moving plate frame; 103. Drill rod; 2. Hole expansion and collection mechanism; 3. Hole expansion assembly; 31. Screw; 32. Ball nut; 33. Bolt; 34. Disc; 35. Connecting rod; 36. Universal ball; 37. Hole expansion component; 370. Drill plate; 372. First side panel; 373. Second side panel; 374. Fence plate; 38. Drill bit; 39. Threaded sleeve; 310. L-shaped rod; 4. Collection assembly; 41. Collection cylinder; 42. First annular plate; 43. Second annular plate; 44. Third annular plate; 45. First annular water pipe; 46. Cooling water pipe; 47. First water pipe; 48. Second annular water pipe.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following describes in detail a coal geological exploration drilling device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0030] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0033] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0034] like Figures 1 to 6As shown, an embodiment of the present invention provides a coal geological exploration drilling equipment, including a drilling rig 1, the drilling rig 1 includes a connected body 101, a movable plate frame 102 and a drill rod 103; a reaming and collecting mechanism 2, the reaming and collecting mechanism 2 is connected to the drill rod 103; the reaming and collecting mechanism 2 includes a reaming component 3 for adjusting the aperture of different coal geological exploration drill holes, and a collecting component 4 for collecting exploration materials and having cooling and flushing effects; the reaming component 3 includes a connected reciprocating screw, a drill bit 38 and a reaming unit, the reciprocating screw includes a connected screw 31 and a ball nut 32, which is a prior art, and the present application does not provide a detailed description of its connection relationship, the outer end of the ball nut 32 is screwed with a bolt 33 through a threaded hole, and the bolt 33 conflicts with the screw 31, the screw 31 and the drill rod 103 are fixedly connected, and the ball nut 32 is connected to the reaming unit; the collecting component 4 includes a connected collecting unit and a cooling and flushing unit, and the collecting unit and the reaming unit are connected.

[0035] like Figures 2 to 4 and Figure 6 As shown, the reaming unit includes a disc 34 rotatably connected to the bottom end of the ball nut 32, and the outer wall of the disc 34 is provided with a plurality of first rotating grooves distributed in a circumferential array, and a connecting rod 35 is rotatably connected in the first rotating groove, and the other end of the connecting rod 35 is connected to a universal ball 36, and the universal ball 36 includes a universal ball head and a universal ball sleeve connected to each other, and the universal ball head is fixedly connected to the connecting rod 35, and the plurality of universal ball sleeves are commonly connected to a reaming component 37, and a plurality of L-shaped rods 310 are connected below the reaming component 37, and the L-shaped rods 310 are rotatably connected in the arc groove, and a threaded sleeve 39 is commonly provided between the plurality of L-shaped rods 310, and a plurality of arc grooves distributed in a circumferential array are provided on the top of the threaded sleeve 39, and the threaded sleeve 39 is fixedly connected to the drill bit 38 by a thread, and the reaming component 37 includes a plurality of drill plates 370 distributed in a circumferential array, and a fence plate 374 is commonly connected between two adjacent drill plates 370.

[0036] The drill plate 370 is set in a triangular shape. The drill plate 370 includes an inner panel, a first side panel 372, a second side panel 373, a top panel and a bottom panel that are connected to each other. The first side panel 372 is set in a concave flip shape, and the second side panel 373 is set in a convex flip shape. The first side panel 372 and the second side panel 373 are set in a convex flip shape. The purpose of arranging the first side panel 372 and the second side panel 373 is to facilitate the rapid scooping and pushing away of the exploration material when drilling. The fence panel 374 is made of a deformable material and can be made of the following materials: such as natural rubber, nitrile rubber and silicone rubber. It is to facilitate deformation as the drill plate 370 contracts or expands. The inner panel is set in a concave flip shape. The inner panel is fixedly connected to the universal ball sleeve. The bottom panel is fixedly connected to the L-shaped rod 310. Multiple inner panels and multiple fence panels 374 form an installation cavity. The inner panel is set to facilitate the material to slide into the installation cavity. The installation cavity is set to facilitate the installation of the collection unit.

[0037] By setting up the hole expansion assembly 3, when in use, first tighten the bolt 33 so that it does not fit with the screw 31, then rotate the ball nut 32 so that the ball nut 32 slides on the screw 31, which will cause the disc 34 to move upward or downward, further driving the connecting rod 35 to move downward under force, and causing the universal ball head to rotate in the universal ball sleeve, which will also push the universal ball sleeve to move, so that the drill plate 370 can be rotated, and at the same time, the connecting rod 35 will rotate in the first rotation groove, and the L-shaped rod 310 will rotate in the arc groove, further causing the fence plate 374 to deform, so that the angles of the multiple drill plates 370 can be adjusted. When adjusted to the appropriate angle, the distance between the multiple drill plates 370 forms an appropriate aperture, and then tighten the bolt 33 to restore the interference with the screw 31. Compared with the existing drilling equipment, the present invention can not only adjust the aperture of the drill hole, but also speed up the drilling speed, thereby improving work efficiency.

[0038] like Figure 4 and Figure 5 As shown, the collecting unit includes a collecting cylinder 41 arranged in the installation cavity, the outer wall of the collecting cylinder 41 is fitted with the inner panel and the fence plate 374, and a positioning groove is provided on the top of the collecting cylinder 41, which is fitted with the universal ball sleeve. The top opening to the bottom opening of the collecting cylinder 41 decreases in sequence, and a third annular plate 44 is fixedly connected to the bottom end of the collecting cylinder 41, and a first annular plate 42 is fixedly connected to the inside of the collecting cylinder 41, and a second annular plate 43 fixedly connected to the inner wall of the collecting cylinder 41 is provided below the first annular plate 42.

[0039] The cooling and flushing unit includes a first annular water pipe 45 fixedly connected to the bottom end opening of the first annular plate 42, the first annular water pipe 45 is sleeved on the screw 31 and fits with the screw 31, and a plurality of interconnected cooling water pipes 46 and a plurality of interconnected first water pipes 47 are fixedly connected to the first annular water pipe 45, one end of the cooling water pipe 46 passes through the third annular plate 44 and the second annular plate 43 and is close to the outside of the threaded sleeve 39, the cooling water pipe 46 is fixedly connected to the second annular plate 43 and the third annular plate 44, and a plurality of first water pipes 47 are fixedly connected to a interconnected second annular water pipe 48, and a interconnected water inlet pipe is fixedly connected to the second annular water pipe 48. It is connected to an external water supply device, a plurality of water spray holes are provided on the first water pipe 47, the opening from the top to the bottom of the first annular plate 42 decreases in sequence, the first annular plate 42 is arranged in a funnel shape, the collecting cylinder 41, the first annular plate 42, the second annular plate 43 and the third annular plate 44 are all made of deformable materials, the inner circles of the second annular plate 43 and the third annular plate 44 are both fitted with the outer wall of the screw 31, a plurality of first leakage holes are provided on the first annular plate 42, a plurality of second leakage holes are provided on the second annular plate 43, and a plurality of third leakage holes are provided on the third annular plate 44. The aperture of the first leakage hole is larger than that of the second leakage hole, and the aperture of the second leakage hole is larger than that of the third leakage hole.

[0040] By setting up the collecting component 4, when in use, when the drill plate 370 comes into contact with the exploration material, it will vibrate, which will then cause the fence plate 374 to vibrate, and further cause the collecting cylinder 41 to vibrate, and also cause the first annular plate 42, the second annular plate 43 and the third annular plate 44 to vibrate. When the collected exploration material enters the collecting cylinder 41 through the installation cavity, it will first come into contact with the first annular plate 42. The vibration of the first annular plate 42 will perform a first screening on the exploration material, and further, it will enter the second annular plate 43 through the first leakage hole for a second screening, and further, it will enter the third annular plate 44 through the second leakage hole, and then perform a third screening through the third leakage hole. During the drilling process, if the drill bit 38 needs to be cooled, it can be cooled by an external water supply device. Water is injected into the water inlet pipe, and the injected water will enter the second annular water pipe 48, the first water pipe 47, the first annular water pipe 45 and the cooling water pipe 46. Part of the water will be sprayed out through the water spray hole, and then will flush the first annular plate 42, further avoiding the blockage of the first leakage hole. The flushing water will flow into the second annular plate 43 through the first leakage hole and flush the second leakage hole, and then enter the third annular plate 44 through the second leakage hole and flush the third leakage hole. At the same time, part of the water will be sprayed onto the drill bit 38 through the cooling water pipe 46 for cooling. Compared with the existing drilling equipment, the present invention can collect the exploration materials in layers, further facilitate the use of the exploration materials, and at the same time, the exploration materials can be cleaned and the drill bit can be cooled.

[0041] The working principle of the technical solution provided by the present invention is as follows: first, the bolt 33 is tightened so that it does not fit with the screw 31, and then the ball nut 32 is rotated to make the ball nut 32 slide on the screw 31, which will cause the disc 34 to move upward or downward, further driving the connecting rod 35 to move downward under force, and causing the universal ball head to rotate in the universal ball sleeve, and also pushing the universal ball sleeve to move, so that the drill plate 370 can be rotated, and at the same time, the connecting rod 35 can rotate in the first rotation groove, and the L-shaped rod 310 can rotate in the arc groove, and further the fence plate 374 can be deformed, so that the angles of multiple drill plates 370 can be adjusted. When adjusted to the appropriate angle, the distance between the multiple drill plates 370 forms an appropriate aperture, and then the bolt 33 is tightened to restore it to the conflict with the screw 31.

[0042] When the drilling plate 370 comes into contact with the exploration material, it will vibrate, which will then cause the fence plate 374 to vibrate, and further cause the collecting tube 41 to vibrate, and at the same time, the first annular plate 42, the second annular plate 43 and the third annular plate 44 to vibrate. When the collected exploration material enters the collecting tube 41 through the installation cavity, it will first come into contact with the first annular plate 42. The vibration of the first annular plate 42 will perform a first screening on the exploration material, and further, it will enter the second annular plate 43 through the first leakage hole for a second screening, and further, it will enter the third annular plate 44 through the second leakage hole, and then perform a third screening through the third leakage hole, and the drilling hole will be drilled. During the process, if the drill bit 38 needs to be cooled, water can be injected into the water inlet pipe through an external water supply device, and the injected water will enter the second annular water pipe 48, the first water pipe 47, the first annular water pipe 45 and the cooling water pipe 46. Part of the water will be sprayed out through the water spray hole, and then will flush the first annular plate 42, further avoiding the blockage of the first leakage hole. The flushing water will flow into the second annular plate 43 through the first leakage hole and flush the second leakage hole, and then enter the third annular plate 44 through the second leakage hole and flush the third leakage hole. At the same time, part of the water will be sprayed onto the drill bit 38 through the cooling water pipe 46 to cool it down.

[0043] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A coal geological exploration drilling equipment, characterized in that: The drilling rig comprises a body, a movable plate frame and a drill rod connected to each other; a hole enlarging and collecting mechanism connected to the drill pipe; The reaming and collecting mechanism includes an reaming component for adjusting the borehole diameters of different coal geological exploration boreholes, and a collecting component for collecting the explored material with cooling and flushing effects; The reaming assembly includes a reciprocating screw, a drill bit, and a reaming unit connected to each other, the reciprocating screw includes a screw and a ball nut connected to each other, the screw is fixedly connected to the drill rod, and the ball nut is connected to the reaming unit; The collecting assembly includes a collecting unit and a cooling and flushing unit connected to each other, and the collecting unit is connected to the reaming unit; The reaming unit includes a disc rotatably connected to the bottom end of the ball nut, the outer wall of the disc is provided with a plurality of first rotation grooves distributed in a circumferential array, a connecting rod is rotatably connected in the first rotation groove, the other end of the connecting rod is connected to a universal ball, the universal ball includes a universal ball head and a universal ball sleeve connected, the universal ball head is fixedly connected to the connecting rod, a plurality of the universal ball sleeves are commonly connected to a reaming component, a plurality of L-shaped rods are connected below the reaming component, a threaded sleeve is commonly provided between the plurality of L-shaped rods, and the threaded sleeve is fixedly connected to the drill bit through a thread; The hole-expanding component includes a plurality of drill plates distributed in a circumferential array, and a fence plate is commonly connected between two adjacent drill plates; The drill plate is arranged in a triangular shape, and the drill plate includes an inner panel, a first side panel, a second side panel, a top panel and a bottom panel that are connected to each other. The first side panel is arranged in an inwardly concave flip shape, and the second side panel is arranged in an outwardly convex flip shape. The fence plate is made of a deformable material, and the inner panel is arranged in an inwardly concave flip shape. The inner panel is fixedly connected to the universal ball sleeve, and the bottom panel is fixedly connected to the L-shaped rod. Multiple inner panels and multiple fence panels form an installation cavity.

2. The coal geological exploration drilling equipment according to claim 1, characterized in that: The top of the threaded sleeve is provided with a plurality of arc-shaped grooves distributed in a circumferential array, and the L-shaped rod is rotatably connected in the arc-shaped grooves.

3. The coal geological exploration drilling equipment according to claim 2, characterized in that: The collecting unit includes a collecting cylinder arranged in the installation cavity, the outer wall of the collecting cylinder is fitted with the inner panel and the fence plate, the top of the collecting cylinder is provided with a positioning groove, the positioning groove is fitted with the universal ball sleeve, the bottom end of the collecting cylinder is fixedly connected to a third annular plate, the inside of the collecting cylinder is fixedly connected to a first annular plate, and a second annular plate fixedly connected to the inner wall of the collecting cylinder is provided below the first annular plate.

4. The coal geological exploration drilling equipment according to claim 3, characterized in that: The cooling and flushing unit includes a first annular water pipe fixedly connected to the bottom end opening of the first annular plate, the first annular water pipe is sleeved on the screw and fits with the screw, a plurality of interconnected cooling water pipes and a plurality of interconnected first water pipes are fixedly connected to the first annular water pipe, one end of the cooling water pipe passes through the third annular plate and the second annular plate and is close to the outside of the threaded sleeve, the cooling water pipe is fixedly connected to the second annular plate and the third annular plate, a plurality of the first water pipes are commonly fixedly connected to a interconnected second annular water pipe, a interconnected water inlet pipe is fixedly connected to the second annular water pipe, and a plurality of water spray holes are provided on the first water pipe.

5. The coal geological exploration drilling equipment according to claim 4, characterized in that: The openings from the top to the bottom of the first annular plate decrease in sequence, and the first annular plate is arranged in a funnel shape.

6. The coal geological exploration drilling equipment according to claim 5, characterized in that: The collecting cylinder, the first annular plate, the second annular plate and the third annular plate are all made of deformable materials, and the inner rings of the second annular plate and the third annular plate are both in contact with the outer wall of the lead screw.

7. The coal geological exploration drilling equipment according to claim 6, characterized in that: The first annular plate is provided with a plurality of first leakage holes, the second annular plate is provided with a plurality of second leakage holes, and the third annular plate is provided with a plurality of third leakage holes. The aperture of the first leakage hole is larger than that of the second leakage hole, and the aperture of the second leakage hole is larger than that of the third leakage hole.

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