Coal mine high-extraction drill site drill hole gas extraction measuring and monitoring device

Abstract

The invention discloses a coal mine high-extraction drilling site drill hole gas extraction measuring and monitoring device, and belongs to the related field of coal mining technology.The coal mine high-extraction drilling site drill hole gas extraction measuring and monitoring device comprises an extraction device, a main rod body and a combined rod, the main rod body is mounted in the middle of the outer surface of the upper end of the extraction device in a spliced mode, and the combined rod is mounted at the upper end of the main rod body in a spliced mode; the outer surface of the main rod body and the outer surface of the combined rod are driven by the lifters, the extraction device comprises an upper conical cap, an extraction tank and a lower conical cap, the upper conical cap is fixedly installed on the outer surface of the lower end of the extraction tank, the lower conical cap is fixedly installed on the outer surface of the upper end of the extraction tank, and threaded rings are arranged at the end of the lower conical cap and the end of the upper conical cap. A piston is movably installed in the extraction tank, and the bottom of the lower conical cap is of a conical structure. The gas extraction device can be flexibly applied to gas extraction operation of drill holes of any depth, the operation difficulty is reduced, and the detection extraction efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field related to coal mining technology, and more specifically to a gas extraction monitoring device for drilling holes in a high-pressure extraction drilling field of a coal mine. Background Art

[0002] The coal mine high-extraction drilling site borehole gas extraction and monitoring device is a device used in the coal mining process to extract and detect the gas in the borehole. Its main function is to use the negative pressure generated by the extraction equipment to extract the gas in the coal seam through the extraction pipeline or borehole, thereby detecting the gas concentration and preventing gas explosions.

[0003] The application document with publication number CN115013040A records a coal mine gas extraction device, including a rotary drill bit for mining, a semi-enclosed housing, an inner shaft, an inner shaft booster, an annular housing, a collection port, a filter and other devices. The semi-enclosed housing covers the extraction port of the inner shaft through an annular housing; the inner shaft is covered with a layer of filter for filtering gas. The air-locking valve and other devices of the coal mine gas extraction device strictly seal the extraction site to avoid accidents such as gas leakage, and the device is easy to operate. Impurities are removed during the extraction process, and the coal mine gas concentration data is processed by the gas concentration detection module using KPCA to filter the pulse interference signal and accurately detect the gas concentration; prevent false alarms, but ensure leak-proof alarms.

[0004] The above-mentioned device has certain shortcomings when performing drilling gas extraction and detection operations. The above-mentioned coal mine gas extraction device uses a drill rod and a rotating drill bit to move the collection device down to the corresponding depth for gas collection. However, due to the influence of the drill rod structure length, it cannot be flexibly applied to gas collection in boreholes of any depth, reducing its flexibility in use. Summary of the invention

[0005] The purpose of the present invention is to provide a coal mine high-pressure drilling field borehole gas extraction monitoring device, which can solve the existing problems.

[0006] The problem to be solved by the present invention is: 1. The above-mentioned coal mine gas extraction device uses a drill rod and a rotating drill bit to move the collection device down to a corresponding depth for gas collection. However, due to the length of the drill rod structure, it cannot be flexibly applied to gas collection in boreholes of any depth, which reduces its flexibility in use.

[0007] The purpose of the present invention can be achieved through the following technical solutions: A gas extraction and monitoring device for a high-extraction drilling site in a coal mine comprises an extractor, a main rod body and a combination rod, wherein the main rod body is spliced ​​and installed in the middle position of the upper outer surface of the extractor, and the combination rod is spliced ​​and installed at the upper end of the main rod body, and the outer surfaces of the main rod body and the combination rod are driven by a lifter, and the extractor comprises an upper cone cap, an extraction tank and a lower cone cap, the upper cone cap is fixedly installed on the lower outer surface of the extraction tank, and the lower cone cap is fixedly installed on the upper outer surface of the extraction tank, and threaded rings are provided on the ends of the lower cone cap and the upper cone cap, a piston is movably installed inside the extraction tank, and the bottom of the lower cone cap is a conical structure, the upper cone cap and the lower end of the main rod body are fixed by threaded docking, and a screwdriver used in conjunction with the main rod body and the combination rod is fixedly installed on the upper outer surface of the lifter.

[0008] As a further technical solution of the present invention, an air inlet is provided on the outer surface of the extraction tank, an electric push rod is fixedly installed inside the extraction tank, a controller is provided on the upper end of the electric push rod, the lower end of the electric push rod is fixedly connected to the piston, and a lifter is used to drive the main rod body and the combination rod to move downward, so that the main rod body and the combination rod lower the extractor to the corresponding depth of the coal mine borehole, and the controller is used to start the electric push rod, so that the electric push rod drives the piston to move upward, thereby drawing the gas in the borehole into the interior of the extraction tank through the air inlet, and the extraction tank is moved upward by the main rod body and the combination rod, so as to detect the gas concentration of the gas in the extraction tank.

[0009] As a further technical solution of the present invention, a signal end is provided at the upper end of the controller, the combination rod and the main rod body are connected by threads, and a gear ring is installed at the lower position of the outer surface of the combination rod, and signal columns are provided in the middle of the combination rod and the main rod body. The user can install a corresponding number of combination rods according to the depth of the coal mine drilling hole. When several groups of combination rods and the main rod body are connected to each other, the signal columns installed inside them are connected to each other. After the main rod body and the extractor are installed, one end of the signal column is connected to the signal end. When the extractor descends to a certain depth, the signal column can be used to send a control signal to the signal end, so that the extractor can be accurately controlled underground. The splicing and use of the combination rods, combined with the setting of the signal column, form a combined antenna structure.

[0010] As a further technical solution of the present invention, two groups of lifting and lowering seats are movably installed inside the lifter, and two groups of screwing seats are movably installed inside the screwer. Fixed frames are provided on both sides of the lifter, and supporting foot pads are installed at the bottom of the fixed frames. The two groups of screwing seats are respectively located on both sides of the combination rod and the main rod body. The combination rod and the main rod body can be driven downward by the transversely arranged driving wheels. When the combination rod and the main rod body are assembled and installed, the two groups of screwing seats can cooperate with the gear ring to drive the combination rod to rotate by using their vertically arranged driving wheels, so that the combination rod and the main rod body complete the threaded docking operation.

[0011] As a further technical solution of the present invention, one end of the screwing seat and the lifting seat are both movably mounted with a driving wheel, the driving wheel at one end of the screwing seat is vertically arranged, and the driving wheel at one end of the lifting seat is horizontally arranged, and two sets of driving wheels in different directions can complete the rotation or lifting and lowering movement of the combination rod and the main rod body, and the surface of the driving wheel at one end of the screwing seat is a toothed structure, so that the driving wheel at one end of the screwing seat can be used in conjunction with the gear ring for meshing.

[0012] As a further technical solution of the present invention, an upper driving seat is provided at the other end of the screwing seat, and a lower driving seat is provided at the other end of the lifting seat. The output ends of the lower driving seat and the upper driving seat are both provided with screw rods. The upper driving seat and the lower driving seat use motors to drive the screw rods, so that the screw rods use threaded structures to drive the screwing seat and the lifting seat to translate, thereby making the driving wheels of the screwing seat and the lifting seat fit into the corresponding positions of the main rod body and the combination rod.

[0013] As a further technical solution of the present invention, the number of extraction tanks is four groups, and the cross-section of the extraction tanks is a right-angle fan-shaped structure. The four groups of extraction tanks are spliced ​​and fixed to each other, and the four groups of extraction tanks are combined to form a columnar structure. In order to meet multiple collection operations of coal mine boreholes at different depths, four groups of extraction tanks with fan-shaped structures are arranged, so that the four groups of extraction tanks are combined to form a columnar structure, so that the four groups of extraction tanks can be simultaneously inserted into the interior of the coal mine borehole for gas collection.

[0014] As a further technical solution of the present invention, a cylindrical gas tank is arranged inside the extraction tank, and the air inlet end of the cylindrical gas tank is controlled by an electromagnetic valve. The piston is movably installed inside the cylindrical gas tank. The electromagnetic valve can be used to control the opening or closing of the air inlet end, and is also applied to the switch control of the air inlet end of the columnar structure extraction tank. When the fan-shaped structure extraction tank is performing gas collection operation, in order to cooperate with the use of the circular piston, a cylindrical gas tank is arranged so that the piston can move up and down in the cylindrical gas tank, thereby drawing the gas into the interior of the cylindrical gas tank.

[0015] As a further technical solution of the present invention, a docking strip is provided on the outer surface of one side of the extraction tank, and a strip groove is provided on the outer surface of the other side of the extraction tank. The sides of several groups of extraction tanks are fixed by docking the docking strip and the strip groove. The docking strip and the strip groove are used to assist in fixing the sides of several groups of extraction tanks.

[0016] As a further technical solution of the present invention, the upper ends of the four groups of extraction tanks are butt-jointed and fixed by upper fixing covers, and the lower ends of the four groups of extraction tanks are butt-jointed and fixed by lower fixing covers.

[0017] Beneficial effects of the present invention: 1. By setting up the extraction device and the combination rod, the gas extraction and monitoring device for drilling holes in the high-extraction drilling field of the coal mine can be flexibly applied to the gas extraction operation of drilling holes at any depth, reducing its operation difficulty and improving its detection and extraction efficiency; During operation, the user fixes the extractor to the lower end of the main rod body, inserts the main rod body into the lifter and the screwdriver, docks the combination rod to one end of the main rod body, increases its usable length, and uses the lifter to drive the main rod body and the combination rod to move downward, so that the main rod body and the combination rod lower the extractor to the corresponding depth of the coal mine borehole, and uses the controller to start the electric push rod, so that the electric push rod drives the piston to move upward, thereby drawing the gas in the borehole into the interior of the extraction tank through the air inlet, and uses the main rod body and the combination rod to move the extraction tank upward, so as to detect the gas concentration of the gas in the extraction tank. During operation, the two sets of screwing seats and the lifting seat are respectively located on both sides of the rod body structure. The lifting seat uses a transversely arranged driving wheel to drive the combination rod and the main rod body to move up and down. The driving wheel is driven by a motor. When the main rod body is assembled and installed, the two sets of screw sockets can use their vertically arranged driving wheels to cooperate with the gear ring to drive the combination rod to rotate, so that the combination rod and the main rod body can complete the threaded docking operation. The user can install a corresponding number of combination rods according to the depth of the coal mine drilling. When several sets of combination rods and the main rod body are docked with each other, the signal columns installed inside them are connected to each other. After the main rod body and the extractor are installed, one end of the signal column is docked with the signal end. When the extractor descends to a certain depth, the signal column can be used to send a control signal to the signal end, so that the extractor can be accurately controlled underground. The splicing of the combination rods, combined with the setting of the signal column, forms a combined antenna structure, which optimizes the underground control effect of the extractor. The combination rod allows the extractor to be flexibly applied to drilling holes of any depth.

[0018] 2. By setting up four sets of fan-shaped extraction tanks, the use of the extraction device and the combination rod is optimized when the gas extraction monitoring device is used in the high-extraction drilling field of the coal mine, so that multiple gas extraction operations at different depths can be completed; During use, in order to meet the multiple collection operations of coal mine boreholes at different depths, four groups of extraction tanks with fan-shaped structures are set up, so that the four groups of extraction tanks are combined to form a columnar structure, so that the four groups of extraction tanks can be inserted into the coal mine borehole for gas collection at the same time, and the extraction tanks of the extraction device are driven to move in the borehole by the lifter. When a group of extraction tanks moves to the corresponding depth, the electromagnetic valve can be used to control the opening or closing of the air inlet end, which is also applied to the switch control of the air inlet end of the columnar structure extraction tank. When the fan-shaped structure extraction tank is performing gas collection operations, in order to cooperate with the use of a circular piston, a cylindrical gas tank is set up so that the piston can move up and down in the cylindrical gas tank, thereby drawing gas into the interior of the cylindrical gas tank, and the piston is driven upward by an electric push rod to draw gas from the air inlet end into the interior of the cylindrical gas tank, and the side edges of several groups of extraction tanks can be auxiliary docked by using docking strips in combination with the bar slots, and the upper and lower ends of the four groups of extraction tanks are docked and fixed in combination with the lower fixed cover and the upper fixed cover.

[0019] 3. By setting the upper cone cap and the lower cone cap, when the gas extraction and monitoring device is used in the high-extraction drilling field of the coal mine, the stability of the extractor and the combination rod when moving up and down is improved to prevent the extractor and the combination rod from getting stuck in the borehole; During operation, the upper cone cap can clear the obstruction in the borehole when the extractor and the combination rod move downward. At the same time, the lower cone cap can clear the obstruction that falls into the borehole when the extractor and the combination rod move upward. The surfaces of the upper cone cap and the lower cone cap are designed with a conical structure, so that the upper cone cap and the lower cone cap can well clean the obstruction in the borehole when moving up and down, and avoid the obstruction from getting stuck in the extractor and the combination rod. Secondly, the upper drive seat and the lower drive seat use a motor to drive the screw rod, so that the screw rod uses a threaded structure to drive the screw seat and the lifting seat to move horizontally, so that the driving wheels of the screw seat and the lifting seat are fitted to the corresponding positions of the main rod body and the combination rod to avoid slipping of the main rod body and the combination rod. The surface of the main rod body and the combination rod is sprayed with anti-slip material, so that the main rod body and the combination rod can move up and down under the action of the lifting seat. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a schematic diagram of the overall structure of a coal mine high-pressure extraction drilling field borehole gas extraction monitoring device of the present invention; Figure 2 This is the overall structural diagram of the extractor in a gas extraction monitoring device for a high-pressure gas extraction drilling site in a coal mine according to the present invention; Figure 3 This is an internal structure diagram of a lifter and a screwdriver in a gas extraction monitoring device for a high-pressure gas extraction drilling site in a coal mine according to the present invention; Figure 4This is an overall structural diagram of a main rod body and a combination rod in a coal mine high-pressure gas extraction and monitoring device; Figure 5 It is a diagram of the internal structure of a gas extraction tank in a columnar state in a gas extraction monitoring device for a high-pressure gas extraction drilling site in a coal mine according to the present invention; Figure 6 It is an overall structural diagram of a gas extraction tank in a fan-shaped state in a gas extraction monitoring device for a high-pressure gas extraction drilling site in a coal mine according to the present invention; Figure 7 It is a combined structural diagram of a gas extraction tank in a fan-shaped state in a gas extraction monitoring device for a high-pressure gas extraction drilling site in a coal mine according to the present invention; Figure 8 It is a state change diagram of a gas extraction monitoring device for a high-extraction drilling site in a coal mine when an extraction tank is used in a fan-shaped state.

[0022] In the figure: 1. extractor; 2. main rod body; 3. lifter; 4. combination rod; 5. screwdriver; 6. fixing frame; 7. supporting foot pad; 8. upper cone cap; 9. extractor tank; 10. threaded ring; 11. lower drive seat; 12. upper drive seat; 13. screw rod; 14. lifting card seat; 15. screw card seat; 16. driving wheel; 17. gear ring; 18. signal column; 19. signal end; 20. electric push rod; 21. controller; 22. lower fixed cover; 23. upper fixed cover; 24. docking card strip; 25. cylindrical gas tank; 26. strip card slot; 27. solenoid valve; 28. lower cone cap; 29. ​​piston. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] like Figure 1 As shown, a gas extraction monitoring device for a high-extraction drilling site in a coal mine comprises an extractor 1, a main rod body 2 and a combination rod 4. The main rod body 2 is spliced ​​and installed at the middle position of the upper outer surface of the extractor 1, and the combination rod 4 is spliced ​​and installed at the upper end of the main rod body 2. The outer surfaces of the main rod body 2 and the combination rod 4 are driven by a lifter 3. Figure 2As shown, the extractor 1 includes an upper cone cap 8, an extraction tank 9 and a lower cone cap 28. The upper cone cap 8 is fixedly mounted on the outer surface of the lower end of the extraction tank 9, and the lower cone cap 28 is fixedly mounted on the outer surface of the upper end of the extraction tank 9. The ends of the lower cone cap 28 and the upper cone cap 8 are both provided with threaded rings 10. A piston 29 is movably mounted inside the extraction tank 9. The bottom of the lower cone cap 28 is a conical structure. The upper cone cap 8 and the lower end of the main rod body 2 are fixed by threaded docking. A screwdriver 5 used in conjunction with the main rod body 2 and the combination rod 4 is fixedly mounted on the outer surface of the upper end of the lifter 3. The surfaces of the main rod body 2 and the combination rod 4 are both provided with an anti-slip coating, which can improve the friction between the main rod body 2 and the combination rod 4.

[0025] like Figure 5 As shown, an air inlet is provided on the outer surface of the extraction tank 9, and an electric push rod 20 is fixedly installed inside the extraction tank 9. A controller 21 is provided on the upper end of the electric push rod 20, and the lower end of the electric push rod 20 is fixedly docked with the piston 29. The lifter 3 is used to drive the main rod body 2 and the combination rod 4 to move downward, so that the main rod body 2 and the combination rod 4 lower the extractor 1 to the corresponding depth of the coal mine borehole, and the controller 21 is used to start the electric push rod 20, so that the electric push rod 20 drives the piston 29 to move upward, thereby drawing the gas in the borehole into the extraction tank 9 through the air inlet, and the extraction tank 9 is moved upward by the main rod body 2 and the combination rod 4, so as to detect the gas concentration of the gas in the extraction tank 9.

[0026] like Figure 5 As shown, the upper end of the controller 21 is provided with a signal terminal 19, the combination rod 4 and the main rod body 2 are connected by threads, and a gear ring 17 is installed at the lower position of the outer surface of the combination rod 4, as shown in FIG. Figure 4 As shown, a signal column 18 is provided in the middle of the combination rod 4 and the main rod body 2. The user can install a corresponding number of combination rods 4 according to the depth of the coal mine drilling. When several groups of combination rods 4 and the main rod body 2 are connected to each other, the signal columns 18 installed inside them are connected to each other. After the main rod body 2 and the extractor 1 are installed, one end of the signal column 18 is connected to the signal end 19. When the extractor 1 descends to a certain depth, the signal column 18 can be used to send a control signal to the signal end 19, so that the extractor 1 can be accurately controlled underground. The splicing of the combination rods 4, combined with the setting of the signal column 18, forms a combined antenna structure.

[0027] To solve the gas extraction problem of boreholes at different depths, such as Figure 3As shown, two groups of lifting seats 14 are movably installed inside the lifter 3, and two groups of screwing seats 15 are movably installed inside the screwing device 5. Fixed frames 6 are provided on both sides of the lifter 3, and supporting foot pads 7 are installed at the bottom of the fixed frames 6. The two groups of screwing seats 15 are respectively located on both sides of the combination rod 4 and the main rod body 2. They can drive the combination rod 4 and the main rod body 2 to move downward by using the transversely arranged driving wheels 16. When the combination rod 4 and the main rod body 2 are assembled and installed, the two groups of screwing seats 15 can cooperate with the gear ring 17 by using the vertically arranged driving wheels 16 to drive the combination rod 4 to rotate, so that the combination rod 4 and the main rod body 2 complete the threaded docking operation.

[0028] One end of the screwing card seat 15 and the lifting card seat 14 are both movably installed with a driving wheel 16. The driving wheel 16 at one end of the screwing card seat 15 is vertically arranged, and the driving wheel 16 at one end of the lifting card seat 14 is horizontally arranged. Two sets of driving wheels 16 in different directions can complete the rotation or lifting and lowering movement of the combination rod 4 and the main rod body 2. The surface of the driving wheel 16 at one end of the screwing card seat 15 is a tooth groove structure, so that the driving wheel 16 at one end of the screwing card seat 15 can be used in conjunction with the gear ring 17 for meshing.

[0029] An upper driving seat 12 is provided at the other end of the screwing seat 15, and a lower driving seat 11 is provided at the other end of the lifting seat 14. The output ends of the lower driving seat 11 and the upper driving seat 12 are both provided with screw rods 13. The upper driving seat 12 and the lower driving seat 11 use motors to drive the screw rods 13, so that the screw rods 13 use threaded structures to drive the screwing seat 15 and the lifting seat 14 to translate, so that the driving wheels 16 of the screwing seat 15 and the lifting seat 14 are fitted at corresponding positions of the main rod body 2 and the combination rod 4.

[0030] To solve the problem of multiple extraction in the borehole, such as Figure 6 As shown, there are four groups of extraction tanks 9, and the cross-section of the extraction tanks 9 is a right-angle fan-shaped structure. The four groups of extraction tanks 9 are spliced ​​and fixed to each other. The four groups of extraction tanks 9 are combined to form a columnar structure. In order to meet multiple collection operations of coal mine boreholes at different depths, four groups of extraction tanks 9 with fan-shaped structures are arranged, so that the four groups of extraction tanks 9 are combined to form a columnar structure, so that the four groups of extraction tanks 9 can be simultaneously inserted into the inside of the coal mine borehole for gas collection.

[0031] A cylindrical gas tank 25 is arranged inside the extraction tank 9. The air inlet end of the cylindrical gas tank 25 is controlled by an electromagnetic valve 27. A piston 29 is movably installed inside the cylindrical gas tank 25. The electromagnetic valve 27 can be used to control the opening or closing of the air inlet end, and is also applied to the switch control of the air inlet end of the columnar structure extraction tank 9. When the fan-shaped structure extraction tank 9 is performing gas collection operations, in order to cooperate with the use of the circular piston 29, a cylindrical gas tank 25 is arranged so that the piston 29 can move up and down in the cylindrical gas tank 25, thereby drawing the gas into the interior of the cylindrical gas tank 25.

[0032] like Figure 7 As shown, a docking strip 24 is provided on the outer surface of one side of the extraction tank 9, and a strip groove 26 is provided on the outer surface of the other side of the extraction tank 9. The sides of several groups of extraction tanks 9 are fixed by docking with the docking strip 24 and the strip groove 26. The docking strip 24 cooperates with the strip groove 26 to assist in fixing the sides of several groups of extraction tanks 9.

[0033] like Figure 8 As shown, the upper ends of the four groups of extraction tanks 9 are butt-jointed and fixed by an upper fixing cover 23 , and the lower ends of the four groups of extraction tanks 9 are butt-jointed and fixed by a lower fixing cover 22 .

[0034] When in use, by setting the extraction device 1 and the combination rod 4, the gas extraction and monitoring device for drilling in the high-extraction drilling field of the coal mine can be flexibly applied to the gas extraction operation of drilling holes of any depth, thereby reducing its operation difficulty and improving its detection and extraction efficiency; During operation, the conventional coal mine gas extraction device uses a drill rod and a rotating drill bit to move the collection device down to the corresponding depth for gas collection. However, due to the length of the drill rod structure, it cannot be flexibly applied to gas collection at any depth of boreholes, which reduces its flexibility in use. To this end, the user fixes the extractor 1 to the lower end of the main rod body 2, inserts the main rod body 2 into the lifter 3 and the screwdriver 5, docks the combination rod 4 at one end of the main rod body 2, increases its usable length, and uses the lifter 3 to drive the main rod body 2 and the combination rod 4 to move downward, so that the main rod body 2 and the combination rod 4 lower the extractor 1 to the corresponding depth of the coal mine borehole, and uses the controller 21 to start the electric push rod 20, so that the electric push rod 20 drives the piston 29 to move upward, thereby sucking the gas in the borehole into the interior of the extraction tank 9 through the air inlet, and uses the main rod body 2 and the combination rod 4 to move the extraction tank 9 upward, so as to detect the gas concentration of the gas in the extraction tank 9. During operation, the two sets of screwing seats 15 and the lifting seat 14 are respectively located on both sides of the rod body structure. The lifting seat 14 uses the transversely arranged driving wheel 16 to drive the combination rod 4 and the main rod body 2 to move up and down. The driving wheel 16 is driven by a motor. When the rod 4 and the main rod body 2 are assembled and installed, the two groups of screwing seats 15 can cooperate with the gear ring 17 to drive the combined rod 4 to rotate by using the vertically arranged driving wheels 16, so that the combined rod 4 and the main rod body 2 complete the threaded docking operation. The user can install a corresponding number of combined rods 4 according to the depth of the coal mine drilling. When several groups of combined rods 4 and the main rod body 2 are docked with each other, the signal columns 18 installed inside them are connected to each other. After the main rod body 2 and the extractor 1 are installed, one end of the signal column 18 is docked with the signal end 19. When the extractor 1 descends to a certain depth, the signal column 18 can be used to send a control signal to the signal end 19, so that the extractor 1 can be accurately controlled underground. The splicing and use of the combined rods 4, combined with the setting of the signal column 18, form a combined antenna structure, optimize the underground control effect of the extractor 1, and the combined rod 4 allows the extractor 1 to be flexibly applicable to drilling holes of any depth; By setting four sets of extraction tanks 9 of fan-shaped structure, when the gas extraction monitoring device of the high-extraction drilling field of the coal mine is used, the use of the extraction device 1 and the combination rod 4 is optimized, so that it can complete multiple gas extraction operations at different depths; When in use, in order to meet the multiple collection operations of coal mine boreholes at different depths, four groups of extraction tanks 9 with fan-shaped structures are set up, so that the four groups of extraction tanks 9 are combined to form a columnar structure, so that the four groups of extraction tanks 9 can be inserted into the coal mine borehole at the same time for gas collection, and the extraction tanks 9 of the extraction device 1 are driven to move in the borehole by the lifter 3. When a group of extraction tanks 9 moves to the corresponding depth, the solenoid valve 27 can be used to control the opening or closing of the air inlet end, and the same is applied to the switch control of the air inlet end of the columnar structure extraction tank 9. The fan-shaped structure extraction tank 9 is When performing gas collection operations, in order to cooperate with the use of the circular piston 29, a cylindrical gas tank 25 is provided so that the piston 29 can move up and down in the cylindrical gas tank 25, thereby pumping gas into the interior of the cylindrical gas tank 25. The electric push rod 20 is used to drive the piston 29 to move upward, so that the gas is pumped into the interior of the cylindrical gas tank 25 from the gas inlet end. The docking card strip 24 is used in conjunction with the bar card slot 26 to assist in docking the sides of several groups of extraction tanks 9, and at the same time, the lower fixed cover 22 and the upper fixed cover 23 are used to dock and fix the upper and lower ends of the four groups of extraction tanks 9; By setting the upper cone cap 8 and the lower cone cap 28, when the gas extraction and monitoring device for drilling holes in the coal mine high-extraction drilling field is used, the stability of the extraction device 1 and the combination rod 4 when moving up and down is improved, and the extraction device 1 and the combination rod 4 are prevented from being stuck in the borehole; During operation, the upper cone cap 8 can clear the obstruction in the borehole when the extractor 1 and the combination rod 4 move downward. At the same time, the lower cone cap 28 can clear the obstruction that falls into the borehole when the extractor 1 and the combination rod 4 move upward. The surfaces of the upper cone cap 8 and the lower cone cap 28 are designed with a conical structure, so that the upper cone cap 8 and the lower cone cap 28 can well clean the obstruction in the borehole when moving up and down, and avoid the obstruction from getting stuck in the extractor 1 and the combination rod 4. Secondly, the upper driving seat 12 and the lower driving seat 11 use a motor to drive the screw rod 13, so that the screw rod 13 uses a threaded structure to drive the screw seat 15 and the lifting seat 14 to move horizontally, so that the driving wheels 16 of the screw seat 15 and the lifting seat 14 are fitted to the corresponding positions of the main rod body 2 and the combination rod 4 to avoid slipping of the main rod body 2 and the combination rod 4. The surfaces of the main rod body 2 and the combination rod 4 are sprayed with anti-slip material, so that the main rod body 2 and the combination rod 4 can move up and down under the action of the lifting seat 14.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A coal mine high-pressure drilling field borehole gas extraction monitoring device, characterized in that: The invention comprises an extractor (1), a main rod body (2) and a combination rod (4), wherein the main rod body (2) is spliced ​​and installed at the middle position of the upper outer surface of the extractor (1), and the combination rod (4) is spliced ​​and installed at the upper end of the main rod body (2). The outer surfaces of the main rod body (2) and the combination rod (4) are driven by a lifter (3). The extractor (1) comprises an upper cone cap (8), an extraction tank (9) and a lower cone cap (28). The upper cone cap (8) is fixedly installed on the lower outer surface of the extraction tank (9). The lower cone cap (28) is fixedly mounted on the upper outer surface of the extraction tank (9), and the ends of the lower cone cap (28) and the upper cone cap (8) are both provided with threaded rings (10). A piston (29) is movably mounted inside the extraction tank (9), and the bottom of the lower cone cap (28) is a conical structure. The upper cone cap (8) and the lower end of the main rod body (2) are fixedly connected by threads, and a screwdriver (5) used in conjunction with the main rod body (2) and the combination rod (4) is fixedly mounted on the upper outer surface of the lifter (3).

2. A coal mine high-pressure gas extraction and monitoring device according to claim 1, characterized in that: An air inlet is provided on the outer surface of the extraction tank (9), an electric push rod (20) is fixedly installed inside the extraction tank (9), a controller (21) is provided at the upper end of the electric push rod (20), and the lower end of the electric push rod (20) is fixedly connected to the piston (29).

3. A coal mine high-pressure gas extraction and monitoring device according to claim 2, characterized in that: The upper end of the controller (21) is provided with a signal terminal (19), the combination rod (4) and the main rod body (2) are butt-jointed via threads, a gear ring (17) is installed at the lower portion of the outer surface of the combination rod (4), and a signal column (18) is provided in the middle of the combination rod (4) and the main rod body (2).

4. A coal mine high-pressure gas extraction and monitoring device according to claim 1, characterized in that: Two groups of lifting and lowering seats (14) are movably installed inside the lifter (3), and two groups of screwing seats (15) are movably installed inside the screwing device (5). Fixed frames (6) are provided on both sides of the lifter (3), and supporting foot pads (7) are installed at the bottom of the fixed frames (6).

5. A coal mine high-pressure gas extraction and monitoring device according to claim 4, characterized in that: A driving wheel (16) is movably mounted on one end of the screwing seat (15) and the lifting seat (14); the driving wheel (16) on one end of the screwing seat (15) is arranged vertically, and the driving wheel (16) on one end of the lifting seat (14) is arranged horizontally.

6. A coal mine high-pressure gas extraction and monitoring device according to claim 5, characterized in that: An upper drive seat (12) is disposed at the other end of the screwing seat (15), a lower drive seat (11) is disposed at the other end of the lifting seat (14), and a screw rod (13) is disposed at the output ends of the lower drive seat (11) and the upper drive seat (12).

7. A coal mine high-pressure gas extraction and monitoring device according to claim 1, characterized in that: The number of the extraction tanks (9) is four groups, and the cross-section of the extraction tanks (9) is a right-angle fan-shaped structure. The four groups of extraction tanks (9) are spliced ​​and fixed to each other, and the four groups of extraction tanks (9) are combined to form a columnar structure.

8. A coal mine high-pressure gas extraction and monitoring device according to claim 7, characterized in that: A cylindrical gas tank (25) is arranged inside the extraction tank (9), the gas inlet end of the cylindrical gas tank (25) is controlled by a solenoid valve (27), and the piston (29) is movably mounted inside the cylindrical gas tank (25).

9. A coal mine high-pressure gas extraction and monitoring device according to claim 7, characterized in that: A docking clamping strip (24) is provided on one side outer surface of the extraction tank (9), and a strip-shaped clamping groove (26) is provided on the other side outer surface of the extraction tank (9); the side edges of a plurality of groups of extraction tanks (9) are docked and fixed via the docking clamping strip (24) and the strip-shaped clamping groove (26).

10. A coal mine high-pressure gas extraction and monitoring device according to claim 9, characterized in that: The upper ends of the four groups of extraction tanks (9) are butt-jointed and fixed via an upper fixing cover (23), and the lower ends of the four groups of extraction tanks (9) are butt-jointed and fixed via a lower fixing cover (22).

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