Coal-mine underground gas control and detection device

Abstract

The present invention relates to the technical field of coal mine safety testing. Disclosed is a coal-mine underground gas control and detection device, comprising a crawler vehicle, wherein a loading platform is mounted on the crawler vehicle. The device further comprises: a storage platform mounted on the loading platform, wherein a connecting shaft is rotationally mounted on the loading platform, a mounting frame is fixed to the loading platform by means of the connecting shaft, a gas intake unit is mounted on the mounting frame, and a storage opening for the placement of the gas intake unit is provided in the storage platform; and a detection frame fixed at the bottom of the loading platform, wherein a gas extraction pump is mounted in the detection frame, a gas pipe is in fixed communication with an outer end of the gas extraction pump, and the other end of the gas extraction pump is in communication with a detection instrument. In the present invention, existing gas detection devices are improved, and an intake gas treatment assembly designed at the top of the gas intake unit can directly filter intake gas to remove impurities, thereby preventing impurities from remaining on an inner wall of a gas channel; moreover, when the gas intake unit is horizontally placed, particulate matter and dust collected in the intake gas treatment assembly can be automatically cleaned, thereby satisfying a long-term underground gas detection operation.

Description

A coal mine gas control detection device Technical Field

[0001] The present invention relates to the technical field of coal mine safety detection, in particular to a coal mine underground gas control detection device. Background Art

[0002] When the gas concentration in the air is 5% to 16%, it will cause an explosion when encountering fire, resulting in an accident. When working underground in a coal mine, it is necessary to regularly test gas to prevent gas explosions and other situations and ensure the safety of coal mine production.

[0003] Because gas has a lower density than air, gas in underground passages tends to accumulate in the upper layers. Existing authorized patent document CN112578084B discloses a coal mine gas control and detection device, in which a designed air duct can be adjusted up and down to absorb gas at different heights, and then the absorbed gas is tested for gas. Existing patent document CN114354842A discloses a coal mine gas control and detection device, which, in addition to meeting the height adjustment requirements for the air intake, also includes a degassing tank to remove impurities from the gas, facilitating gas detection in the gas.

[0004] The above-mentioned existing technologies have achieved the collection and detection of gas at different heights underground, and have also designed devices for removing dust and particulate matter in the gas. However, the impurity removal tank is installed after the guide pipe and before the detector. Although it can remove impurities, dust and particulate matter will still remain in the guide pipe. Moreover, the adsorption balls in the impurity removal tank need to be manually replaced by personnel after they are full of adsorption, which cannot meet the needs of long-term detection underground. Summary of the Invention

[0005] The purpose of the present invention is to provide a coal mine underground gas control and detection device to solve the problem raised in the above background technology that debris is easily left in the pipeline and long-term automatic detection cannot be performed.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a coal mine underground gas control and detection device, comprising a crawler vehicle, a loading platform installed on the crawler vehicle, and a receiving platform installed on the loading platform, a docking shaft rotatably installed on the loading platform, and a mounting frame fixed by the docking shaft, an air intake unit is installed on the mounting frame, and a receiving port for placing the air intake unit is provided on the receiving platform; and a detection frame fixed to the bottom of the loading platform, an air pump is installed in the detection frame, and an air pipe is fixedly connected to the outer end of the air pump, and the other end is connected to the detection instrument in the detection frame, the air pipe passes through the loading platform and is connected to the bottom of the air intake unit; and a driving unit, the driving unit is used to drive the rotation of the mounting frame and the adjustment of the air intake unit, a chip removal groove is provided at one end of the receiving port, and a cleaning component connected to the driving unit is installed in the chip removal groove.

[0007] Preferably, the air intake unit includes an outer cylinder and an inner tube, the bottom of the outer cylinder is rotatably docked with the bottom of the mounting frame through a bearing, and a threaded groove is engraved in the outer cylinder, the inner tube is threadedly plugged into the outer cylinder, and a limiting groove is provided on the outer side of the inner tube, and a limiting block is fixed on the mounting frame that is slidably connected to the limiting groove, the bottom of the outer cylinder is fixed with a docking end that is rotatably docked with the outer end of the air pipe, and a bevel gear ring connected to the drive unit is fixed on the outer side of the docking end, and an air intake processing assembly is fixed on the top of the inner tube, the air intake processing assembly is used to remove impurities from the incoming gas, and the cleaning assembly is used to clean the particulate matter and dust isolated by the air intake processing assembly, and the designed air intake unit is used to absorb gas underground, wherein the outer cylinder and the inner tube can be telescopically adjusted to meet further height adjustment.

[0008] Preferably, the air intake processing component includes an air duct and an isolation plate fixedly connected to the inner tube, the isolation plate is installed in the air duct, and the isolation plate is used to isolate particulate matter and dust in the gas, a support plate is fixed in the air duct for abutting the two ends of the isolation plate, and a mounting port is provided on one side of the air duct, a locking part abutting the outer end of the isolation plate is installed in the mounting port, an air intake is provided on the outside of the air duct, and a cleaning port is provided on one side of the air duct, and opening plate one and opening plate two are rotatably installed at both ends of the cleaning port, and the outside of the rotating shaft of opening plate one and opening plate two are both sleeved with torsion springs, and opening plate one and opening plate two are closed by the torsion springs. The designed air intake processing component can isolate and process the inhaled gas, and isolate and discharge impurities such as particulate matter and dust in the gas.

[0009] Preferably, the outer sides of the opening plate one and the opening plate two are both installed with sealing strips that fit with the outer side of the cleaning port, and two arc-shaped end blocks are fixed at both ends of the cleaning port, and the two arc-shaped end blocks fit with the outer ends of the opening plate one and the opening plate two respectively, so that the opening plate one can only be opened inward and the opening plate two can only be opened outward, the sealing strip is used to improve the sealing performance, and the arc-shaped end blocks play a limiting role.

[0010] Preferably, the driving unit includes two driving motors, and the two driving motors are installed on the loading platform. A driving gear is fixed to the output end of one of the driving motors, and a transmission gear meshing with the driving gear is fixed to the outer end of the docking shaft. A driving bevel gear is fixed to the output end of the other driving motor, and the driving bevel gear is meshed with the bevel gear ring. The driving unit is used to realize the rotation adjustment of the mounting frame, and the rotation of the outer cylinder and the driving of the cleaning component are driven.

[0011] Preferably, the cleaning assembly includes a cleaning frame and a long rod rotatably inserted on the storage table, one end of the long rod extends into the chip removal groove, and the other end is fixed with a transmission bevel gear meshing with the driving bevel gear, and the end of the long rod away from the transmission bevel gear is fixed with a screw threadedly inserted with the cleaning frame, and a limit rod is slidably inserted in the cleaning frame, and a docking plate is fixed in the chip removal groove, the outer end of the screw rod is rotatably docked with the docking plate, and the two ends of the sliding rod are respectively fixed to the docking plate and the inner wall of the chip removal groove, and a cleaning piece for cleaning residual debris on the outside of the isolation plate is installed in the cleaning frame. The designed cleaning assembly meets the requirements of cleaning residual particles and dust on the isolation plate.

[0012] Preferably, the cleaning part includes a cleaning plate that is slidably connected to the cleaning frame, and a plurality of connecting rods that are slidably connected to the cleaning frame are fixed to the bottom of the cleaning plate. The outer side of the connecting rod is covered with an extrusion spring, and a cleaning roller is rotatably installed on the outer end of the cleaning plate, and brushes are evenly installed on the outer side of the cleaning roller. The designed cleaning roller and brush can clean the dust remaining on the isolation plate.

[0013] Preferably, the adjacent ends of the opening plate 1 and the opening plate 2 are fixed with inclined blocks adapted to the outer side of the cleaning plate. The cleaning plate contacts the inclined blocks during movement, driving the opening plate 1 and the opening plate 2 to open accordingly. The design of the inclined blocks facilitates the corresponding opening of the opening plate 1 and the opening plate 2.

[0014] Preferably, the locking member includes a mounting plate, the cross-sectional shape of the mounting opening is convex, and the mounting plate is fixed to the mounting opening by bolts, and a locking block is fixed on the inner side of the mounting plate, which is abutted against the outer end of the isolation plate. The locking positioning of the isolation plate is satisfied by the installation of the locking member.

[0015] Preferably, a universal wheel is passed through the top sliding portion of the airway, and a buffer spring is sleeved on the outer side of the connecting shaft of the universal wheel to abut against the outer end of the airway. The design of the universal wheel and the buffer spring can provide buffering and facilitate movement when the airway is raised to the top contact.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention improves the existing gas detection device. The driving unit drives the air intake unit to rotate, thereby being able to receive and improve the air intake position. At the same time, the air intake processing assembly designed on the top of the air intake unit can directly filter and remove impurities from the absorbed gas, so that no impurities will remain on the inner wall of the airway. At the same time, when the air intake unit is in a flat state, it can self-clean the particulate matter and dust collected in the air intake processing assembly, thereby meeting the needs of long-term gas detection operations in the well.

[0018] 2. The outer tube and the inner tube in the air intake unit of the present invention are telescopically adjustable and can be further moved upward to meet the needs of suction at higher positions. The entire detection device is cleverly designed. In the retracted state, the trapezoidal shape is small, which meets the needs of driving in small tunnels. After unfolding, it can also collect gas at high places. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of the overall structure of the present invention;

[0020] FIG2 is a side view of the present invention;

[0021] FIG3 is a schematic structural diagram of the air intake unit of the present invention in a stored state;

[0022] FIG4 is a schematic diagram of the structure of the storage table according to the present invention after partial cross-section;

[0023] FIG5 is a partial cross-sectional rear side view of the storage table of the present invention;

[0024] FIG6 is a schematic structural diagram of a drive unit according to the present invention;

[0025] FIG7 is a schematic diagram of the connection between the outer tube and the inner tube of the present invention;

[0026] FIG8 is a schematic diagram showing the connection between the cleaning assembly and the air intake processing assembly after partial cross-section of the airway according to the present invention;

[0027] FIG9 is a schematic diagram of the structure in which the cleaning roller and the isolation plate abut against each other according to the present invention.

[0028] In the figure: 1. crawler; 2. loading platform; 3. storage platform; 4. docking shaft; 5. mounting frame; 6. air intake unit; 7. storage port; 8. detection frame; 9. air pipe; 10. drive unit; 11. chip removal groove; 12. cleaning assembly; 13. outer cylinder; 14. inner tube; 15. limit groove; 16. limit block; 17. docking end; 18. bevel gear ring; 19. air intake treatment assembly; 20. air duct; 21. isolation plate; 22. support plate; 23. mounting port; 24. locking piece; 25. Air inlet; 26. Cleaning port; 27. Opening plate 1; 28. Opening plate 2; 29. ​​Arc-shaped end block; 30. Driving motor; 31. Driving gear; 32. Transmission gear; 33. Driving bevel gear; 34. Cleaning frame; 35. Long rod; 36. Transmission bevel gear; 37. Screw; 38. Cleaning piece; 39. Cleaning plate; 40. Connecting rod; 41. Extrusion spring; 42. Cleaning roller; 43. Bevel block; 44. Mounting plate; 45. Locking block; 46. Universal wheel; 47. Buffer spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 5 and 7. The figure shows a coal mine gas control detection device, which includes a crawler vehicle 1, a loading platform 2 installed on the crawler vehicle 1, and a storage platform 3 installed on the loading platform 2. A docking shaft 4 is rotatably installed on the loading platform 2, and a mounting frame 5 is fixed through the docking shaft 4. An air intake unit 6 is installed on the mounting frame 5, and a storage port 7 for placing the air intake unit 6 is opened on the storage platform 3; and a detection frame 8 fixed to the bottom of the loading platform 2, and a pump is installed in the detection frame 8. An air pump, an air pipe 9 is fixedly connected to the outer end of the air pump, and the other end is connected to the detection instrument in the detection frame 8. The air pump and the detection instrument in this scheme are existing equipment and are both installed in the detection frame 8. The air pipe 9 passes through the loading platform 2 and is connected to the bottom of the air intake unit 6; and a driving unit 10, which is used to drive the rotation of the mounting frame 5 and the adjustment of the air intake unit 6. A chip removal groove 11 is opened at one end of the receiving port 7, and a cleaning component 12 connected to the driving unit 10 is installed in the chip removal groove 11;

[0031] In this solution, the tracked vehicle 1 is capable of traveling in a variety of terrain environments and can also be remotely controlled. The designed drive unit 10 drives the mounting frame 5 to rotate, so that the air intake unit 6 can be correspondingly rotated from a flat storage state to a vertical state. During the rotation, the height of the air inlet 25 can be adjusted. At the same time, the air intake unit 6 is in the storage state, which enables the tracked vehicle 1 to move underground and enter a small space tunnel more easily. At the same time, the air intake unit 6 in the horizontal state can contact the cleaning component 12 to clean the dust isolated from the air intake unit 6; during the detection process, the detection frame 8 is used to evacuate the air through the internal vacuum pump, and then the gas is detected by the detector.

[0032] Further, referring to Figures 2 to 5 and 7, the air intake unit 6 includes an outer cylinder 13 and an inner tube 14. The bottom of the outer cylinder 13 is rotatably docked with the bottom of the mounting bracket 5 through a bearing. A threaded groove is engraved in the outer cylinder 13, and the inner tube 14 is threadedly plugged into the outer cylinder 13. A limiting groove 15 is provided on the outer side of the inner tube 14, and a limiting block 16 is fixed on the mounting bracket 5 to be slidably connected to the limiting groove 15. A docking end 17 rotatably docked with the outer end of the air pipe 9 is fixed to the bottom of the outer cylinder 13, and a bevel gear ring 18 connected to the drive unit 10 is fixed to the outer side of the docking end 17. An air intake processing assembly 19 is fixed to the top of the inner tube 14. The air intake processing assembly 19 is used to remove impurities from the incoming gas, and the cleaning assembly 12 is used to clean the particulate matter and dust isolated by the air intake processing assembly 19;

[0033] The outer tube 13 and the inner tube 14 in the air intake unit 6 are threadedly connected to each other. The driving unit 10 drives the bevel gear ring 18 to rotate, causing the docking end 17 and the outer tube 13 to rotate accordingly. The limiting groove 15 on the outer side of the inner tube 14 is rotationally limited by the limiting block 16. As the outer tube 13 rotates, the inner tube 14 is adjusted to rise and fall, thereby further driving the air intake processing assembly 19 to rise and fall, so that gas at a higher level can be collected.

[0034] Among them, the air intake processing component 19 includes an air duct 20 and an isolation plate 21 fixedly connected to the inner tube 14. The isolation plate 21 is installed in the air duct 20. The isolation plate 21 is used to isolate particulate matter and dust in the gas. A support plate 22 is fixed in the air duct 20 for abutting the two ends of the isolation plate 21. A mounting port 23 is provided on one side of the air duct 20. A locking member 24 is installed in the mounting port 23 and abuts against the outer end of the isolation plate 21. An air intake 25 is provided on the outside of the air duct 20. A cleaning port 26 is provided on one side of the air duct 20. Opening plates 1 27 and 28 are rotatably installed at both ends of the cleaning port 26. The outer sides of the rotating shafts of opening plates 1 27 and 28 are both covered with torsion springs, and the torsion springs are used to close opening plates 1 27 and 28.

[0035] In this solution, the air inlet 25 on the outside of the top of the air duct 20 is used for the entry of gas into the underground tunnel. At the same time, when passing through the isolation plate 21, the particulate matter and dust in the gas are isolated. By opening the opening plate 1 27 and the opening plate 2 28 correspondingly, the cleaning component 12 facilitates the cleaning of the isolation plate 21.

[0036] It should also be noted that: by designing the locking member 24 to be open, the isolation plate 21 can be pulled out and replaced easily. At the same time, after the locking member 24 is installed, the isolation plate 21 can be pressed and locked.

[0037] In this solution, in order to ensure the sealing between the cleaning port 26 and the opening plates 1 27 and 28, the outer sides of the opening plates 1 27 and 28 are installed with sealing strips that fit with the outer sides of the cleaning port 26. At the same time, in order to limit the rotation of the opening plates 1 27 and 28, two arc-shaped end blocks 29 are fixed at both ends of the cleaning port 26. The two arc-shaped end blocks 29 fit with the outer ends of the opening plates 1 27 and 28, respectively, so that the opening plate 1 27 can only be opened inward and the opening plate 2 28 can only be opened outward.

[0038] 3 and 6 , the drive unit 10 includes two drive motors 30 , which are mounted on the loading platform 2 . A drive gear 31 is fixed to the output end of one of the drive motors 30 , and a transmission gear 32 meshing with the drive gear 31 is fixed to the outer end of the docking shaft 4 . A drive bevel gear 33 is fixed to the output end of the other drive motor 30 , and the drive bevel gear 33 meshes with the bevel gear ring 18 .

[0039] The driving unit 10 drives the mounting frame 5 to rotate by: the driving motor 30 drives the driving gear 31 to rotate, causing the transmission gear 32 meshing with it to rotate accordingly, thereby causing the docking shaft 4 and the mounting frame 5 to rotate accordingly, thereby rotating the air intake unit 6 from a horizontal state to a vertical state;

[0040] The principle of the drive unit 10 driving the outer cylinder 13 to rotate: after the mounting frame 5 is rotated and adjusted to a suitable angle, it can be rotated by another drive motor 30, so that the drive bevel gear 33 at its outer end drives the bevel gear ring 18 to rotate, thereby causing the docking end 17 and the outer cylinder 13 to rotate accordingly. The limiting groove 15 on the outer side of the inner tube 14, under the action of the limiting block 16, causes the inner tube 14 to move axially, thereby performing telescopic adjustment between the inner tube 14 and the outer cylinder 13, and can further adjust the height to meet the collection of high-altitude gases in some higher-altitude environments.

[0041] Further, referring to Figures 5, 6, 8 and 9, the cleaning assembly 12 includes a cleaning frame 34 and a long rod 35 rotatably inserted on the storage table 3, one end of the long rod 35 extends into the chip groove 11, and the other end is fixed with a transmission bevel gear 36 that meshes with the drive bevel gear 33, and the long rod 35 is away from the transmission bevel gear 36. One end of the long rod 35 is fixed with a screw rod 37 that is threadedly plugged into the cleaning frame 34, and a limit rod is slidably inserted in the cleaning frame 34. A docking plate is fixed in the chip groove 11, and the outer end of the screw rod 37 is rotatably docked with the docking plate. The two ends of the sliding rod are respectively fixed to the docking plate and the inner wall of the chip groove 11, and a cleaning member 38 for cleaning residual debris outside the isolation plate 21 is installed in the cleaning frame 34;

[0042] Among them, the cleaning member 38 includes a cleaning plate 39 that is slidably connected to the cleaning frame 34. The bottom of the cleaning plate 39 is fixed with several connecting rods 40 that are slidably connected to the cleaning frame 34. The outer side of the connecting rod 40 is covered with an extrusion spring 41. The outer end of the cleaning plate 39 is rotatably installed with a cleaning roller 42, and a brush is evenly installed on the outside of the cleaning roller 42.

[0043] The principle of cleaning the isolation plate 21 by the cleaning component 12 is as follows: after the air inlet unit 6 is laid flat, the opening plate 27 on the air duct 20 will contact and abut against the cleaning roller 42, and after abutting against each other, the opening plate 27 will rotate inward, as shown in FIG8 , and finally the cleaning roller 42 will abut against the outside of the isolation plate 21, and then the transmission bevel gear 36 at the outer end of the long rod 35 will mesh with the driving bevel gear 33, so that the long rod 35 and the screw rod 37 can rotate synchronously, driving the cleaning frame 34 to move accordingly, so that the cleaning plate 3 9 and the cleaning roller 42 move accordingly. During the movement, the design of the extrusion spring 41 makes the cleaning roller 42 always press against the outside of the isolation plate 21, and in the process of movement, the dust and particles attached to the outside of the isolation plate 21 are cleaned up, and when the cleaning plate 39 moves to contact the opening plate 28, the opening plate 28 is pushed open to the state shown in Figure 9, and the dust and particles on the outside of the isolation plate 21 are discharged, thereby realizing the self-cleaning effect of the outside of the isolation plate 21, and no manual cleaning is required;

[0044] Among them, in order to ensure that the cleaning plate 39 can stably rotate and open the opening plate 1 27 and the opening plate 2 28 accordingly during the movement, an inclined block 43 adapted to the outer side of the cleaning plate 39 is fixed at the adjacent ends of the opening plate 1 27 and the opening plate 2 28, so that after the cleaning plate 39 contacts the inclined block 43 during the movement, it is easier to push the opening plate 1 27 and the opening plate 2 28 open.

[0045] In this solution, the process of collecting gas underground and cleaning up debris during the collection process is realized;

[0046] First, personnel can remotely control the crawler vehicle 1 to move so as to meet the needs of driving in different underground tunnels;

[0047] Secondly, after reaching the designated area, the driving unit 10 first drives the mounting frame 5 to rotate, causing the air intake processing assembly 19 at the outer end of the air intake unit 6 to rotate accordingly. The vehicle stops every 15° to collect gas, thereby starting to collect and detect the gas within the rotation range and detecting the gas concentration in the height area.

[0048] Next, when the mounting frame 5 is rotated to a vertical state, the bevel gear ring 18 on the outer side of the docking end 17 is meshed with the driving bevel gear 33. Driven by the driving motor 30, the outer tube 13 rotates accordingly, thereby driving the inner tube 14 to move up and down, thereby collecting and detecting the gas within the lifting range.

[0049] Then, after the inspection is completed, the inner tube 14 retracts and the mounting frame 5 is laid flat, so that the air duct 20 is in a flat state, and the opening plate 27 is brought into contact with the cleaning roller 42, pushing the opening plate 27 open. Then, the driving bevel gear 33 drives the transmission bevel gear 36 to rotate, so that the long rod 35 and the screw rod 37 rotate accordingly, driving the cleaning plate 39 to contact and clean the outside of the isolation plate 21, and discharge the isolated particles and dust, thereby achieving self-cleaning.

[0050] Finally, the personnel control the crawler vehicle 1 to move to another location and repeat the above operation to perform gas concentration detection.

[0051] In this solution, when the air intake unit 6 is in the stored state, the overall size of the tracked vehicle 1 is small, which is convenient for moving through small tunnels. At the same time, when collecting gas, the air intake unit 6 can change the height of the air duct 20 by rotating the angle and adjusting the telescopic adjustment of the outer tube 13 and the inner tube 14, thereby meeting the collection of gases at different levels to determine the gas concentration and make the detection more accurate.

[0052] Example 2: Please refer to FIG. 7 and FIG. 9 . This embodiment further explains Example 1. The difference lies in that one embodiment of the locking member 24 is disclosed.

[0053] Specifically, the locking member 24 includes a mounting piece 44. The cross-section of the mounting opening 23 is convex. The mounting piece 44 is fixed to the mounting opening 23 by bolts. A locking block 45 is fixed inside the mounting piece 44 and abuts against the outer end of the isolation plate 21.

[0054] When personnel need to replace the isolation plate 21, they only need to open the bolts on the mounting plate 44, first move the mounting plate 44 upward so that the locking block 45 is separated from the outer end of the isolation plate 21, and then pull out the mounting plate 44. After that, personnel can easily pull out the isolation plate 21 through the mounting port 23 and replace a different isolation plate 21.

[0055] Example 3: Please refer to FIG7 . This embodiment further illustrates Example 1, and the difference lies in that the structure of the top of the airway 20 is optimized.

[0056] Specifically, a universal wheel 46 slides through the top of the airway 20, and a buffer spring 47 is sleeved on the outside of the connecting shaft of the universal wheel 46 to abut against the outer end of the airway 20, wherein an annular pressure sensor is fixed on the top of the airway 20, and a protrusion that contacts the annular pressure sensor is fixed on the universal wheel 46.

[0057] It should be noted that: during the upward movement of the airway 20, it is inevitable that it will come into contact with the top of the tunnel. After long-term contact and collision, the top of the airway 20 will be damaged. Therefore, through the design of the universal wheel 46 and the buffer spring 47, after contact with the top, the universal wheel 46 will move down, the buffer spring 47 can play a buffering effect, and the protrusion contacts the annular pressure sensor, thereby enabling the airway 20 to stop moving upward and prevent it from being damaged by collision.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas control and detection device for underground coal mines, comprising: A crawler vehicle (1) with a loading platform (2) mounted thereon; Characterized in that it further comprises: A storage platform (3) mounted on the loading platform (2). A docking shaft (4) is rotatably mounted on the loading platform (2), and a mounting frame (5) is fixed by the docking shaft (4). An air intake unit (6) is mounted on the mounting frame (5). A storage opening (7) for placing the air intake unit (6) is provided on the storage platform (3); and, A detection frame (8) fixed to the bottom of the loading platform (2). A suction pump is installed in the detection frame (8), and the outer end of the suction pump is fixedly connected to a trachea (9), and the other end is connected to a detection instrument in the detection frame (8). The trachea (9) penetrates the loading platform (2) and is connected to the bottom of the air intake unit (6); and, A driving unit (10) for driving the mounting frame (5) to rotate and adjusting the air intake unit (6). A chip removal groove (11) is provided at one end of the storage opening (7), and a cleaning component (12) docked with the driving unit (10) is installed in the chip removal groove (11); The air intake unit (6) includes an outer cylinder (13) and an inner pipe (14). The bottom of the outer cylinder (13) is rotatably docked with the bottom of the mounting frame (5) through a bearing, and a threaded groove is engraved in the outer cylinder (13). The inner pipe (14) is threadedly inserted into the outer cylinder (13). A docking end (17) fixedly connected to the outer end of the trachea (9) is fixed to the bottom of the outer cylinder (13). A bevel gear ring (18) connected to the driving unit (10) is fixed to the outside of the docking end (17). An air intake treatment component (19) is fixed to the top of the inner pipe (14). The air intake treatment component (19) is used for removing impurities from the incoming gas, and the cleaning component (12) is used for cleaning the particulate matter and dust separated by the air intake treatment component (19); The air intake treatment component (19) includes an air duct (20) and a partition plate (21) fixedly connected to the inner pipe (14). The partition plate (21) is installed in the air duct (20). A cleaning opening (26) is provided on one side of the air duct (20). A first opening plate (27) and a second opening plate (28) are rotatably installed at both ends of the cleaning opening (26). Torsion springs are sleeved on the outer sides of the rotating shafts of the first opening plate (27) and the second opening plate (28), and the first opening plate (27) and the second opening plate (28) are closed by the torsion springs; The driving unit (10) includes two driving motors (30). The two driving motors (30) are installed on the loading platform (2). A driving gear (31) is fixed to the output end of one of the driving motors (30), and a transmission gear (32) meshing with the driving gear (31) is fixed to the outer end of the docking shaft (4). A driving bevel gear (33) is fixed to the output end of the other driving motor (30), and the driving bevel gear (33) meshes with the bevel gear ring (18); The cleaning component (12) includes a cleaning frame (34) and a long rod (35) rotatably inserted on the storage table (3). One end of the long rod (35) extends into the chip discharge groove (11), and a transmission bevel gear (36) meshing with the driving bevel gear (33) is fixed at the other end. A lead screw (37) threadedly inserted into the cleaning frame (34) is fixed at one end of the long rod (35) away from the transmission bevel gear (36). A limiting rod is slidably inserted into the cleaning frame (34). A docking plate is fixed in the chip discharge groove (11). The outer end of the lead screw (37) is rotatably docked with the docking plate. Both ends of the sliding rod are fixed to the docking plate and the inner wall of the chip discharge groove (11) respectively. A cleaning member (38) for cleaning the residual debris outside the isolation plate (21) is installed in the cleaning frame (34).

2. The gas control and detection device for coal mines underground according to claim 1, wherein: A limiting groove (15) is formed on the outer side of the inner pipe (14), and a limiting block (16) slidably connected to the limiting groove (15) is fixed on the mounting bracket (5).

3. The gas control detection device for coal mines underground according to claim 2, wherein: The isolation plate (21) is used to isolate the particulate matter and dust in the gas. A support plate (22) for abutting against both ends of the isolation plate (21) is fixed in the air duct (20). An installation port (23) is formed on one side of the air duct (20). A locking member (24) abutting against the outer end of the isolation plate (21) is installed in the installation port (23). Air inlets (25) are formed on the outer sides of the air ducts (20).

4. The gas control detection device for coal mines underground according to claim 3, wherein: Sealing strips fitting the outer sides of the cleaning ports (26) are installed on the outer sides of the opening plate one (27) and the opening plate two (28). Two arc-shaped end blocks (29) are respectively fixed at both ends of the cleaning port (26). The two arc-shaped end blocks (29) are respectively in contact with the outer ends of the opening plate one (27) and the opening plate two (28), so that the opening plate one (27) opens towards the inside of the air duct (20), and the opening plate two (28) can only open towards the outside of the air duct (20).

5. The gas control and detection device for coal mines underground according to claim 4, wherein: The cleaning member (38) includes a cleaning plate (39) slidably inserted into the cleaning frame (34). A connecting rod (40) slidably inserted into the cleaning frame (34) is fixed at the bottom of the cleaning plate (39). A compression spring (41) is sleeved on the outer side of the connecting rod (40). A cleaning roller (42) is rotatably installed at the outer end of the cleaning plate (39), and brushes are evenly installed on the outer side of the cleaning roller (42).

6. The gas control detection device for coal mines underground according to claim 5, wherein: Oblique blocks (43) adapted to the outer sides of the cleaning plates (39) are fixed at the adjacent ends of the opening plate one (27) and the opening plate two (28). When the cleaning plates (39) move and contact the oblique blocks (43) during the movement, the opening plate one (27) and the opening plate two (28) are driven to open correspondingly.

7. The gas control and detection device for coal mines underground according to claim 3, characterized in that: The locking member (24) includes a mounting piece (44). The cross-sectional shape of the installation port (23) is convex, and the mounting piece (44) is fixed to the installation port (23) by bolts. A locking block (45) abutting against the outer end of the isolation plate (21) is fixed on the inner side of the mounting piece (44).

8. The gas control and detection device for coal mines underground according to claim 3, wherein: A universal wheel (46) slides through the top of the airway (20), and a buffer spring (47) that abuts against the outer end of the airway (20) is sleeved outside the connecting shaft of the universal wheel (46).

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