Rapid extraction sampling device based on coal mine gas extraction

Abstract

The invention discloses a rapid extraction sampling device based on coal mine gas extraction, and relates to the technical field of gas sampling devices, the rapid extraction sampling device comprises a filter head, a filter cartridge is arranged on the outer surface of the filter head, and an opening and closing mechanism used for pushing the filter cartridge to slide is arranged in the filter head; an air conveying pipe, an air pump and an air storage tank are arranged at the right end of the filter head, the left end of the filter head is in a closed state, the right end of the filter head is in an open state, air inlet grooves are formed in the outer surface of the left end of the filter head in a circumferential array mode, and filter screens are fixedly connected to the exteriors of the multiple air inlet grooves through screws; the filter cartridge is slidably connected to the outer surface of the filter head, and a filter screen cover is in threaded connection with the interior of the left end of the filter cartridge. Sample gas in a drill hole is sucked into the filter cartridge and the filter head by driving the air pump, the filter screen cover and the filter screen jointly filter the sample gas entering the filter cartridge and the filter head, and the content of impurities in the sample gas is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gas sampling devices, and in particular to a rapid extraction and sampling device based on coal mine gas extraction. Background Art

[0002] Gas is a colorless, tasteless, and odorless gas that is insoluble in water. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen and is prone to combustion or explosion. Currently, during the mining process of coal mines, it is necessary to extract the gas in the coal seams of coal mines to prevent accidents caused by gas leaks.

[0003] Most of the existing equipment for extracting and sampling coal mine gas directly uses a pipe with a trumpet-shaped suction hood at the front end to extract the gas and then store it. The existing equipment for extracting and sampling coal mine gas directly collects and stores the gas through the pipe. The collected and stored gas contains a lot of impurities such as dust, which affects the gas detection efficiency and gas detection results. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid extraction and sampling device based on coal mine gas extraction to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A rapid extraction sampling device for coal mine gas extraction comprises a filter head, a filter cartridge is provided on the outer surface of the filter head, an opening and closing mechanism for pushing the filter cartridge to slide is provided inside the filter head, and an air pipe, an air pump and an air storage tank are provided at the right end of the filter head; The left end of the filter head is in a closed state, and the right end is in an open state. An air inlet groove is provided in a circumferential array on the outer surface of the left end of the filter head. The outsides of the plurality of air inlet grooves are fixedly connected to a filter screen by screws. The filter cartridge is slidably connected to the outer surface of the filter head, and the left end of the filter cartridge is internally threadedly connected to a filter cover.

[0006] A further improvement of the technical solution of the present invention is that: the opening and closing mechanism includes a servo motor, a support frame, a screw rod and a circular plate; The servo motor is fixedly connected to the left end of the filter head, the support frame is fixedly connected to the middle of the filter head cavity, and the circular plate is slidably connected to the inside of the filter head; One end of the servo motor output shaft is fixedly connected to a screw rod, and one end of the screw rod is rotatably connected to the support frame through a bearing; The circular plate is connected to the screw rod through a ball nut pair.

[0007] A further improvement of the technical solution of the present invention lies in that: the opening and closing mechanism further includes a push rod and a fixing frame. A push rod is fixedly connected to the left side of the circular plate. The number of the push rods is two. The two push rods slidably penetrate through the left end of the filter head and are fixedly connected to the fixing frame. The fixing frame is fixedly connected to the inside of the left end of the filter cylinder.

[0008] A further improvement of the technical solution of the present invention lies in that: arc-shaped blocks are fixedly connected to the middle part of the inner cavity of the filter cylinder in a circumferential array. The arc-shaped blocks are slidably connected to the outer surface of the filter head. A cleaning mechanism for cleaning the filter net is arranged inside the filter cylinder. The cleaning mechanism includes a support ring, a rotating ring and a motor; A support ring is fixedly connected to the middle part of the inner cavity of the filter cylinder. An annular support groove is formed on the inner circumferential surface of the support ring. The rotating ring is rotatably installed in the annular support groove. An annular rack is integrally formed on the upper surface of the inner ring of the rotating ring; The motor is fixedly connected to the side surface of an arc-shaped block. One end of the output shaft of the motor is fixedly connected to a gear. The gear meshes with the annular rack; A brush is fixedly connected to the inner circumferential surface of the rotating ring. The outer end of the brush contacts the outer surface of the filter head.

[0009] A further improvement of the technical solution of the present invention lies in that: the right end of the filter head is detachably connected in sections to an air delivery pipe. The tail of the air delivery pipe is threadedly connected to a conversion head. One end of the conversion head is sleeved with a first hose.

[0010] A further improvement of the technical solution of the present invention lies in that: the output end of the air pump is sleeved with a second hose. The input end of the air pump is sleeved with the conversion head.

[0011] A further improvement of the technical solution of the present invention lies in that: the input end of the gas storage tank is sleeved with the second hose.

[0012] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is: 1. The present invention provides a rapid extraction and sampling device based on coal mine gas extraction. By driving the air pump, the gas in the borehole is sucked into the filter cylinder and the filter head. The filter mesh cover preliminarily filters the gas to filter out larger sand and gravel particles in the gas. The filter net filters the gas again to filter out smaller particulate matters in the gas. The filter mesh cover and the filter net jointly filter the gas to reduce the content of impurities in the sampled gas.

[0013] 2. The present invention provides a rapid extraction sampling device for coal mine gas drainage. When sampling work is not carried out, the two ends inside the filter head are isolated by a circular plate. When sampling work is carried out, the servo motor drives the screw member to rotate, and the screw member drives the circular plate to slide leftward inside the filter head, so that the two ends inside the filter head are communicated. When the circular plate slides leftward, the non-sampling gas inside the filter head can be discharged, so as to achieve the purpose of sampling and collecting the gas at a specified depth, and improve the collection quality of the sampled gas.

[0014] 3. The present invention provides a rapid extraction sampling device for coal mine gas drainage. By driving the servo motor to drive the screw member to rotate and driving the circular plate to slide leftward through the screw member, the circular plate drives the filter cylinder to slide leftward through the push rod and the fixing frame. When the filter cylinder slides leftward, the driving motor drives the gear, the rotating ring and the brush to rotate. The rotation of the brush cleans the outer surface of the filter head and the mesh holes on the filter screen, reduces the impurity content in the sampled gas, and improves the filtering efficiency of the filter screen at the same time. And the bristles on the brush can block the impurity particles in the gas filtered by the filter screen cover, so as to further reduce the impurity content in the sampled gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional structural schematic diagram of the filter head of the present invention; Figure 3 is a sectional structural schematic diagram of the filter cylinder of the present invention; Figure 4 is a partial structural schematic diagram of the filter cylinder of the present invention; Figure 5 is an enlarged structural schematic diagram at A of the present invention Figure 6 is a sectional structural schematic diagram of the gas transmission pipe of the present invention; Figure 7 is a structural schematic diagram of the air pump and the gas storage tank of the present invention.

[0017] In the figure: 1. Filter head; 101. Filter screen; 2. Filter cylinder; 201. Filter screen cover; 202. Support ring; 203. Arc-shaped block; 3. Opening and closing mechanism; 301. Servo motor; 302. Support frame; 303. Lead screw part; 304. Circular plate; 305. Push rod; 306. Fixed frame; 4. Cleaning mechanism; 401. Swivel ring; 402. Electric motor; 403. Brush; 404. Gear; 5. Air delivery pipe; 501. Adapter; 502. Hose 1; 6. Air pump; 601. Hose 2; 7. Gas storage tank. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0020] Embodiment 1 As Figures 1-7 shown, the present invention provides a rapid extraction and sampling device based on coal mine gas extraction, including a filter head 1. A filter cylinder 2 is arranged on the outer surface of the filter head 1. An opening and closing mechanism 3 for pushing the filter cylinder 2 to slide is arranged inside the filter head 1. An air delivery pipe 5, an air pump 6 and a gas storage tank 7 are arranged at the right end of the filter head 1. The left end of the filter head 1 is in a closed state, and the right end is in an open state. An air inlet groove is circumferentially arrayed on the outer surface of the left end of the filter head 1. A filter net 101 is fixedly connected to the outside of each of the multiple air inlet grooves by screws. The filter cylinder 2 is slidably connected to the outer surface of the filter head 1. A filter net cover 201 is threadedly connected to the inside of the left end of the filter cylinder 2.

[0021] In this embodiment, when sampling the gas, the filter head 1 and the filter cartridge 2 are pushed into the reserved borehole through the gas pipeline 5. At this time, the opening and closing mechanism 3 isolates the inside of both ends of the filter head 1. The external non-sampling gas can only enter the left end inside of the filter head 1 through the filter net 101, thus avoiding the mixing of non-sampling gas and sampling gas inside the filter head 1 when sampling the gas, which affects the detection result of the sampling gas. When the filter head 1 and the filter cartridge 2 reach the sampling depth, start the opening and closing mechanism 3 to push the filter cartridge 2 to slide leftward relative to the filter head 1. During the process of the opening and closing mechanism 3 pushing the filter cartridge 2 to slide leftward, the non-sampling gas inside the left end of the filter head 1 can be discharged and the isolation of the inside of both ends of the filter head 1 can be cancelled. At this time, the inside of both ends of the filter head 1 is connected. When sampling the gas, start the air pump 6 to suck the gas in the borehole into the filter cartridge 2 and the filter head 1 through the gas pipeline 5. The filter net cover 201 initially filters the gas entering the filter cartridge 2 and the filter head 1 to filter out larger sand and gravel particles in the gas. The filter net 101 filters the gas again to filter out smaller particulate matter in the gas. The filter net cover 201 and the filter net 101 jointly filter the gas to reduce the content of impurities in the sampling gas. The gas entering the inside of the filter head 1 is input into the gas storage tank 7 through the gas pipeline 5 and the air pump 6. The gas storage tank 7 collects and stores the sample gas, which is convenient for subsequent testers to transport and detect the sample gas. Since the filter cartridge 2 is hermetically and slidably sleeved on the filter head 1 through a sealing ring, when collecting the gas, the gas will not leak through the gap between the filter cartridge 2 and the filter head 1 or enter the filter cartridge 2. After the sampling work is completed, the filter head 1 and the filter cartridge 2 are pulled out of the borehole through the gas pipeline 5. After pulling out, check whether there is any damage on the filter net cover 201 and the filter net 101. If there is damage on the filter net cover 201, rotate the damaged filter net cover 201 to remove it from the filter cartridge 2, and take out a new filter net cover 201 to replace the damaged filter net cover 201. If the filter net 101 is damaged, rotate the screw on the damaged filter net 101 to replace the damaged filter net 101 for the next use.

[0022] Embodiment 2 As Figures 1-7As shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the opening and closing mechanism 3 includes a servo motor 301, a support frame 302, a lead screw member 303, and a circular plate 304. The servo motor 301 is fixedly connected to the inside of the left end of the filter head 1. The support frame 302 is fixedly connected to the middle part of the inner cavity of the filter head 1. The circular plate 304 is slidably connected to the inside of the filter head 1. One end of the output shaft of the servo motor 301 is fixedly connected to the lead screw member 303. One end of the lead screw member 303 is rotatably connected to the support frame 302 through a bearing. The circular plate 304 is connected to the lead screw member 303 through a ball screw pair. The opening and closing mechanism 3 further includes a push rod 305 and a fixing frame 306. A push rod 305 is fixedly connected to the left side of the circular plate 304. The number of push rods 305 is two. The two push rods 305 slidably penetrate through the left end of the filter head 1 and are fixedly connected to the fixing frame 306. The fixing frame 306 is fixedly connected to the inside of the left end of the filter cylinder 2.

[0023] In this embodiment, before sampling the gas, the circular plate 304 is located on the right side of the filter net 101. At this time, the circular plate 304 blocks the connection between the inside of the right end of the filter head 1 and the gas transmission pipe 5, preventing external non-sampling gas from entering the inside of the filter head 1 through the filter net 101 and entering the inside of the gas storage tank 7 through the filter head 1, the gas transmission pipe 5, and the air pump 6, which affects the accuracy of the gas detection. When sampling the gas, start the servo motor 301 to drive the lead screw member 303 to rotate. The support frame 302 is respectively connected to the filter head 1 and the lead screw member 303 to support one end of the lead screw member 303, improving the rotational stability of the lead screw member 303. When the lead screw member 303 rotates, it drives the circular plate 304 to slide leftward inside the filter head 1. During the sliding process of the circular plate 304, non-sampling gas entering the inside of the left end of the filter head 1 can be discharged, thus avoiding the mixing of sampling gas and non-sampling gas inside the filter head 1 and affecting the detection result of the sampling gas. At the same time, when the circular plate 304 slides leftward, it pushes the fixing frame 306 to move leftward through the push rod 305. The fixing frame 306 is connected to the filter cylinder 2 to drive the filter cylinder 2 to slide leftward. When the circular plate 304 slides and passes over the filter net 101, turn off the servo motor 301, and the lead screw member 303 stops rotating to fix the position of the circular plate 304. The circular plate 304 fixes the position of the filter cylinder 2 through the push rod 305 and the fixing frame 306. At this time, the inside of both ends of the filter head 1 is in a communicating state. Start the air pump 6 to inhale external sample gas into the filter cylinder 2 and the filter head 1 and input it into the gas storage tank 7 through the gas transmission pipe 5 and the air pump 6.

[0024] Embodiment 3 As Figures 1-7As shown in the figure, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, arc-shaped blocks 203 are fixedly connected in a circumferential array in the middle of the inner cavity of the filter cartridge 2. The arc-shaped blocks 203 are slidably connected to the outer surface of the filter head 1. A cleaning mechanism 4 for cleaning the filter mesh 101 is arranged inside the filter cartridge 2. The cleaning mechanism 4 includes a support ring 202, a rotating ring 401 and a motor 402. A support ring 202 is fixedly connected in the middle of the inner cavity of the filter cartridge 2. An annular support groove is formed on the inner circumferential surface of the support ring 202. The rotating ring 401 is rotatably installed in the annular support groove. An annular rack is integrally formed on the upper surface of the inner ring of the rotating ring 401. The motor 402 is fixedly connected to the side surface of one arc-shaped block 203. One end of the output shaft of the motor 402 is fixedly connected with a gear 404. The gear 404 meshes with the annular rack. A brush 403 is fixedly connected to the inner circumferential surface of the rotating ring 401. The outer end of the brush 403 contacts the outer surface of the filter head 1.

[0025] In this embodiment, when the servo motor 301 drives the circular plate 304 to slide leftward inside the filter head 1 through the screw member 303, the circular plate 304 pushes the fixing frame 306 and the filter cartridge 2 to slide leftward through the push rod 305. The filter cartridge 2 is internally connected with a plurality of arc-shaped blocks 203 and the arc-shaped blocks 203 slide on the outer surface of the filter head 1. The plurality of arc-shaped blocks 203 can improve the sliding stability of the filter cartridge 2. When the filter cartridge 2 slides leftward, the motor 402 is started to drive the gear 404 to rotate. The gear 404 meshes with the annular rack on the rotating ring 401, and will drive the rotating ring 401 and the brush 403 to rotate through the annular rack. The brush 403 rotates to clean the outer surface of the filter head 1, sweeping away dust and the like on the outer surface of the filter head 1, avoiding the dust on the outer surface of the filter head 1 from mixing with the sampling gas and increasing the impurity content in the sampling gas. As the filter cartridge 2 continues to slide leftward, the brush 403 rotates and contacts the filter mesh 101 to clean the mesh holes on the filter mesh 101, avoiding the dust filtered on the mesh holes from mixing with the sampling gas and increasing the impurity content in the sampling gas. At the same time, it can avoid the particulate matter filtered on the mesh holes from blocking the mesh holes and reducing the filtering efficiency of the filter mesh 101. When the servo motor 301 stops rotating and fixes the position of the circular plate 304 through the screw member 303, the circular plate 304 fixes the position of the filter cartridge 2 through the push rod 305 and the fixing frame 306. At this time, the brush 403 is located on the outer surface of the left end of the filter head 1. When the air pump 6 is started to suck external gas into the filter cartridge 2 and the filter head 1 through the air delivery pipe 5, the filter net cover 201 preliminarily filters the gas. The gas filtered by the filter net cover 201 passes through the bristles on the brush 403. The bristles can block the impurity particulate matter in the gas, thereby further reducing the impurity content in the sampling gas. The gas filtered by the bristles enters the filter head 1 through the filter mesh 101 and enters the gas storage tank 7 through the air delivery pipe 5 and the air pump 6.

[0026] After the sampling work is completed, start the servo motor 301 to drive the circular plate 304 to slide rightward inside the filter head 1 through the lead screw member 303. The circular plate 304 pulls the fixed frame 306 and the filter cylinder 2 to slide rightward through the push rod 305, thereby driving the filter cylinder 2 back to the initial position. During the process of the filter cylinder 2 sliding rightward, start the motor 402 to drive the brush 403 to rotate through the gear 404, the annular rack and the rotating ring 401. The rotation of the brush 403 cleans the dust on the outer surface of the filter head 1, the dust on the mesh holes of the filter net 101 and the particulate matter in the mesh holes of the filter net 101, facilitating the next use.

[0027] Embodiment 4 As Figures 1-7 shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the right end of the filter head 1 is detachably connected in sections with an air delivery pipe 5. The tail of the air delivery pipe 5 is threadedly connected with a conversion head 501. One end of the conversion head 501 is sleeved with a first hose 502. The output end of the air pump 6 is sleeved with a second hose 601. The input end of the air pump 6 is sleeved with the conversion head 501. The input end of the gas storage tank 7 is sleeved with the second hose 601.

[0028] In this embodiment, before sampling the gas, select the corresponding number of air delivery pipes 5 according to the sampling depth and connect the corresponding number of air delivery pipes 5 end to end in sequence. After the connection of the air delivery pipes 5 is completed, connect the head end of the air delivery pipe 5 to the filter head 1, connect the conversion head 501 to the tail end of the air delivery pipe 5, connect the first hose 502 to the input ends of the conversion head 501 and the air pump 6 respectively, and connect the second hose 601 to the output end of the air pump 6 and the input end of the gas storage tank 7 respectively, thereby completing the assembly of the gas sampling device. When sampling the gas, push the filter head 1 and the filter cylinder 2 into the reserved drill hole through the air delivery pipe 5. When the filter head 1 and the filter cylinder 2 reach the sampling depth, start the air pump 6 to suck the external gas into the filter cylinder 2 and the filter head 1 through the first hose 502, the conversion head 501, the air delivery pipe 5, the filter head 1 and the filter cylinder 2. The gas in the filter head 1 enters the gas storage tank 7 through the air delivery pipe 5, the conversion head 501, the first hose 502, the air pump 6 and the second hose 601. The gas storage tank 7 collects and stores the sample gas. When the sample gas inside the gas storage tank 7 reaches an appropriate capacity, turn off the air pump 6 and separate the second hose 601 from the input end of the gas storage tank 7, which is convenient for subsequent testers to transport and detect the sample gas.

[0029] 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 invention. 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.

[0030] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention 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 principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A rapid extraction and sampling device based on coal mine gas drainage, comprising a filter head (1), characterized in that: A filter cartridge (2) is provided on the outer surface of the filter head (1). An opening and closing mechanism (3) for pushing the filter cartridge (2) to slide is provided inside the filter head (1). An air delivery pipe (5), an air pump (6) and an air storage tank (7) are provided at the right end of the filter head (1); The left end of the filter head (1) is in a closed state and the right end is in an open state. Air inlet grooves are circumferentially arrayed on the outer surface of the left end of the filter head (1). A filter net (101) is fixedly connected to the outside of each of the plurality of air inlet grooves by screws; The filter cartridge (2) is slidably connected to the outer surface of the filter head (1). A filter net cover (201) is threadedly connected to the inside of the left end of the filter cartridge (2).

2. The rapid extraction sampling device based on coal mine gas drainage according to claim 1, characterized in that: The opening and closing mechanism (3) includes a servo motor (301), a support frame (302), a lead screw member (303) and a circular plate (304); The servo motor (301) is fixedly connected to the inside of the left end of the filter head (1). The support frame (302) is fixedly connected to the middle of the inner cavity of the filter head (1). The circular plate (304) is slidably connected to the inside of the filter head (1); One end of the output shaft of the servo motor (301) is fixedly connected to a lead screw member (303). One end of the lead screw member (303) is rotatably connected to the support frame (302) through a bearing; The circular plate (304) is connected to the lead screw member (303) through a ball nut pair.

3. The rapid extraction sampling device based on coal mine gas extraction according to claim 2, wherein: The opening and closing mechanism (3) further includes a push rod (305) and a fixing frame (306). A push rod (305) is fixedly connected to the left side of the circular plate (304). The number of the push rods (305) is two. The two push rods (305) slidably penetrate through the left end of the filter head (1) and are fixedly connected to a fixing frame (306). The fixing frame (306) is fixedly connected to the inside of the left end of the filter cartridge (2).

4. A rapid extraction sampling device based on coal mine gas drainage according to claim 1, characterized in that: Arc-shaped blocks (203) are circumferentially arrayed and fixedly connected to the middle of the inner cavity of the filter cartridge (2). The arc-shaped blocks (203) are slidably connected to the outer surface of the filter head (1). A cleaning mechanism (4) for cleaning the filter net (101) is provided inside the filter cartridge (2). The cleaning mechanism (4) includes a support ring (202), a rotating ring (401) and a motor (402); A support ring (202) is fixedly connected to the middle of the inner cavity of the filter cartridge (2). An annular support groove is provided on the inner circumferential surface of the support ring (202). The rotating ring (401) is rotatably installed in the annular support groove. An annular rack is integrally formed on the upper surface of the inner circle of the rotating ring (401); The motor (402) is fixedly connected to the side of one arc-shaped block (203). One end of the output shaft of the motor (402) is fixedly connected to a gear (404). The gear (404) meshes with the annular rack; A brush (403) is fixedly connected to the inner circumferential surface of the rotating ring (401). The outer end of the brush (403) contacts the outer surface of the filter head (1).

5. The rapid extraction and sampling device based on coal mine gas extraction according to claim 1 is characterized in that: The right end of the filter head (1) is detachably connected to the air delivery pipe (5) in sections. A conversion head (501) is threadedly connected to the tail of the air delivery pipe (5). One end of the conversion head (501) is sleeved with a first flexible pipe (502).

6. The rapid extraction sampling device based on coal mine gas extraction according to claim 1, characterized in that: The output end of the air pump (6) is sleeved with a second hose (601), and the input end of the air pump (6) is sleeved with an adapter (501).

7. A rapid extraction sampling device based on coal mine gas drainage according to claim 1, characterized in that: The input end of the air storage tank (7) is sleeved with the second hose (601).

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