Mining assembly type glass fiber reinforced plastic air duct structure for coal engineering

Abstract

The invention discloses a coal engineering mining assembly type glass fiber reinforced plastic air duct structure which comprises a ventilation pipeline, a ventilation mechanism is arranged in the ventilation pipeline, an airflow distribution and guide mechanism is arranged in the ventilation pipeline, and a vibration mechanism is arranged on the surface of the airflow distribution and guide mechanism. Air duct assembly structures are arranged at the two ends of the ventilation pipeline, a storage chamber is formed in the surface of the ventilation pipeline, a storage box is connected to the interior of the storage chamber in an inserted mode, and a handrail is fixedly connected to the surface of the storage box. According to the mining assembly type glass fiber reinforced plastic air duct structure for the coal engineering, the ventilation mechanism, the traction permanent magnet and the linkage permanent magnet are arranged and are in ferromagnetic connection, the external servo motor drives the internal fan blades to rotate, and therefore the situation that coal ash is accumulated in the servo motor, and consequently mechanical parts are damaged can be effectively avoided; meanwhile, the middle shaft drives the connecting rod to cooperate with the brush plate to rotate to clean the filter screen, so that the interior of the pipeline can be effectively prevented from being cleaned.

Description

Technical Field

[0001] The present invention relates to the technical fields of air conditioning equipment and mining devices, and particularly relates to a prefabricated fiberglass air duct structure for coal engineering mines. Background Art

[0002] In coal engineering, in order to improve ventilation and reduce potential safety hazards, air ducts are often used for ventilation. Existing air ducts generally include flexible air ducts made of canvas, artificial leather, plastic, rubber, etc. and rigid air ducts made of aluminum plates, iron sheets, etc.

[0003] For example, a prefabricated fiberglass air duct structure for coal engineering mines disclosed in Chinese Patent Publication No. (CN118309478A) records: "Through the modular assembly design among the fiberglass air duct main body, filter element assembly, multi-purpose flow control assembly, active assembly component and driven assembly component, the anti-disconnection connection between multiple fiberglass air duct main bodies is facilitated, greatly improving the connection effect and stability. Moreover, the configuration application between multiple different functional modules and the modular fiberglass air duct is facilitated, improving the overall application comprehensiveness. And through the design of the filter element assembly, it is convenient to be assembled at the air outlet position of the fiberglass air duct, so as to facilitate the adsorption and filtration of particles at the air outlet position. And through the design of the multi-purpose flow control assembly, it is convenient to be assembled at the air inlet position of the fiberglass air duct, so as to facilitate controlling different air inlet volumes or completely stopping the air inlet, greatly improving the application functionality."

[0004] To sum up, the device still has the following technical problems: Since this ventilation structure is applied to coal engineering, and coal engineering is mostly related to coal mining and processing. During coal mining, coal dust will appear inside the mine cave. The long-term air transportation by the ventilation structure will cause the accumulation of coal ash inside, which will further lead to ventilation blockage. Therefore, it is necessary to propose a prefabricated fiberglass air duct structure for coal engineering mines. To solve the technical problems mentioned in the above patent, a new technical solution is provided. Summary of the Invention

[0005] Based on this, in view of the above technical problems, it is necessary to provide a prefabricated fiberglass air duct structure for coal engineering mines. By setting a ventilation mechanism, the traction permanent magnet and the linkage permanent magnet are magnetically connected, and the external servo motor drives the internal fan blade to rotate, so as to effectively avoid the damage of mechanical components caused by the accumulation of coal ash inside the servo motor. At the same time, the central shaft drives the connecting rod to cooperate with the brush plate to rotate to clean the filter screen, and further effectively avoid the cleaning inside the pipeline.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A prefabricated fiberglass air duct structure for coal engineering mines is applied to the internal ventilation and air flow diversion of a mine.

[0008] The coal engineering mine - used assembled fiberglass air duct structure specifically includes a ventilation pipeline. Inside the ventilation pipeline, a ventilation mechanism is arranged. Inside the ventilation pipeline, an air - flow guiding mechanism is arranged. On the surface of the air - flow guiding mechanism, a vibration mechanism is arranged. At both ends of the ventilation pipeline, there are air duct assembly structures;

[0009] On the surface of the ventilation pipeline, a storage chamber is opened. Inside the storage chamber, a storage box is inserted and connected. On the surface of the storage box, a handrail is fixedly connected. Inside the ventilation pipeline, on one side of the storage chamber, a spoiler is fixedly connected.

[0010] As a preferred embodiment of the coal engineering mine - used assembled fiberglass air duct structure provided by the present invention, on the surface of the ventilation pipeline, a motor positioning frame is fixedly connected. Inside the motor positioning frame, a servo - motor is fixedly connected. The output end of the servo - motor is rotationally connected to a transmission shaft. The end of the transmission shaft far away from the servo - motor is fixedly connected to a gear.

[0011] As a preferred embodiment of the coal engineering mine - used assembled fiberglass air duct structure provided by the present invention, on the surface of the ventilation pipeline, an external positioning ring is fixedly connected. Inside the external positioning ring, bearings are symmetrically arranged. Inside the external positioning ring, a gear ring is rotationally connected. On the inner wall of the gear ring, a plurality of traction permanent magnets are fixedly connected in an annular array.

[0012] As a preferred embodiment of the coal engineering mine - used assembled fiberglass air duct structure provided by the present invention, on the inner wall of the ventilation pipeline, internal positioning rings are symmetrically and fixedly connected. Inside the internal positioning rings, bearings are arranged. On the inner wall of the internal positioning rings, a ring frame is rotationally connected. On the surface of the ring frame, linkage permanent magnets are fixedly connected in an annular array. The linkage permanent magnets are magnetically connected to the traction permanent magnets.

[0013] As a preferred embodiment of the coal engineering mine - used assembled fiberglass air duct structure provided by the present invention, on the inner wall of the ventilation pipeline, a cross - shaped support is fixedly connected. Inside the cross - shaped support, a central shaft is rotationally connected. On the surface of the central shaft, fan blades are fixedly connected. The outer circle of the fan blades is fixedly connected to the inner wall of the ring frame. On the inner wall of the ventilation pipeline, a filter screen is fixedly connected.

[0014] As a preferred embodiment of the coal engineering mine - used assembled fiberglass air duct structure provided by the present invention, the end of the central shaft far away from the cross - shaped support extends to the outside of the filter screen. On the surface of the central shaft, a connecting rod is fixedly connected. On the surface of the connecting rod, a brush plate is fixedly connected. The brush plate is in close contact with the side of the filter screen far away from the cross - shaped support.

[0015] As a preferred embodiment of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention, a conical air duct is fixedly connected to the middle of the ventilation pipeline. The surface of the conical air duct is fixedly connected with air outlet pipes in an annular array. A fixing frame is fixedly connected to the surface of the ventilation pipeline. A spoiler is rotatably connected to the surface of the fixing frame. A plurality of push plates are fixedly connected to the inner wall of the spoiler in an annular array.

[0016] As a preferred embodiment of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention, a fixing ring is fixedly connected to the inner wall of the ventilation pipeline. A fixing rod is slidably connected to the inside of the fixing ring. One end of the fixing rod is fixedly connected with a push ring. The end of the fixing rod far from the push ring is fixedly connected with a shielding ring. The shielding ring is slidably connected to the inner wall of the ventilation pipeline. A return spring is sleeved on the surface of the fixing rod. The two ends of the return spring are respectively fixedly connected with the fixing ring and the push ring.

[0017] As a preferred embodiment of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention, a turning arm is rotatably connected to the surface of the spoiler. A knocking hammer is fixedly connected to the end of the turning arm far from the spoiler. A toothed ring is fixedly connected to the surface of the ventilation pipeline. The knocking hammer is in close contact with the surface of the toothed ring. A torsion spring is sleeved on the surface of the turning arm. The two ends of the torsion spring are respectively fixedly connected with the spoiler and the turning arm.

[0018] As a preferred embodiment of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention, plug-in positioning blocks are fixedly connected to both ends of the ventilation pipeline. Fiberglass air ducts are arranged at both ends of the ventilation pipeline. A locking ring is fixedly connected to the end of the fiberglass air duct close to the ventilation pipeline. A locking groove is opened in the inside of the locking ring. A locking ring is hingedly connected to the surface of the locking ring. The plug-in positioning block is inserted into the inner wall of the locking groove and fixed to the fiberglass air duct through the locking ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] For the assembled fiberglass air duct structure for coal engineering mines provided by the present invention, by setting up a ventilation mechanism, the traction permanent magnet and the linkage permanent magnet are magnetically connected. The external servo motor drives the internal fan blades to rotate, so as to effectively avoid the mechanical parts from being damaged due to the accumulation of coal ash inside the servo motor. At the same time, the central axis drives the connecting rod to cooperate with the brush plate to rotate to clean the filter screen, and thus the cleaning of the inside of the pipeline can be effectively avoided.

[0021] The assembled fiberglass air duct structure for coal engineering mines provided by the present invention is equipped with an air flow diversion mechanism. According to different pressure differences, the air flow inside the pipeline can be diverted. When the servo motor operates at a low frequency, the air pressure inside the pipeline is relatively low, and while the air flows through, the air is discharged through the air outlet pipe. The air flow can blow the push plate to drive the spoiler cover to rotate, thereby realizing the diversion of air. While the spoiler cover rotates, it can drive the flipping arm to drive the knocking hammer to rotate and then knock on the toothed ring, further realizing the cleaning of the dust inside the pipeline.

[0022] The assembled fiberglass air duct structure for coal engineering mines provided by the present invention is equipped with an air duct assembly structure. When assembling or disassembling the ventilation pipeline, the ventilation pipeline can be quickly fixed and unlocked through the cooperation of the locking ring and the locking collar, thereby realizing the quick disassembly and installation of the ventilation pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the solutions in the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the ventilation pipeline of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the ventilation mechanism of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0027] Figure 4 For the assembled fiberglass air duct structure for coal engineering mines provided by the present invention Figure 3 The enlarged schematic diagram of part A;

[0028] Figure 5 It is a schematic diagram of the structure of the air flow diversion mechanism of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the air flow diversion mechanism of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the vibration mechanism of the assembled fiberglass air duct structure for coal engineering mines provided by the present invention;

[0031] Figure 8 This is a schematic diagram of the air duct assembly structure of the assembled fiberglass reinforced plastic air duct structure for coal engineering mines provided by the present invention.

[0032] The markings in the figure are explained as follows:

[0033] 1. Ventilation pipeline; 2. Ventilation mechanism; 3. Airflow diversion mechanism; 4. Vibration mechanism; 5. Air duct assembly structure; 6. Storage room; 7. Storage box; 8. Handrail; 9. Turbulence plate; 10. Motor positioning frame; 11. Servo motor; 12. Transmission shaft; 13. Gear; 14. External positioning ring; 15. Gear ring; 16. Traction permanent magnet; 17. Internal positioning ring; 18. Ring frame; 19. Linkage permanent magnet; 20. Cross bracket; 21. Central axis; 22. Fan blade; 23. Filter screen; 24. Connecting rod; 25. Brush plate; 26. Conical air duct; 27. Air outlet pipe; 28. Fixed frame; 29. Turbulence cover; 30. Push plate; 31. Fixed ring; 32. Fixed rod; 33. Push ring; 34. Blocking ring; 35. Return spring; 36. Flipping arm; 37. Hammer; 38. Tooth ring; 39. Torsion spring; 40. Fiberglass reinforced plastic air duct; 41. Locking ring; 42. Locking groove; 43. Locking ring; 44. Insertion positioning block. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] As described in the background art, since this ventilation structure is applied to coal engineering, coal engineering is mostly involved in coal mining and processing. During coal mining, coal dust will appear inside the mine cave, and the long-term air transportation by the ventilation structure will cause the accumulation of coal ash inside, which will further lead to ventilation blockage.

[0036] To solve this technical problem, the present invention provides an assembled fiberglass reinforced plastic air duct structure for coal engineering mines, which is applied to mine internal ventilation and airflow diversion.

[0037] Specifically, please refer to Figure 1 - Figure 2 , the assembled fiberglass reinforced plastic air duct structure for coal engineering mines specifically includes a ventilation pipeline 1, a ventilation mechanism 2 is arranged inside the ventilation pipeline 1, an airflow diversion mechanism 3 is arranged inside the ventilation pipeline 1, a vibration mechanism 4 is arranged on the surface of the airflow diversion mechanism 3, and air duct assembly structures 5 are arranged at both ends of the ventilation pipeline 1;

[0038] The surface of the ventilation duct 1 is provided with a storage chamber 6. An accommodation box 7 is plugged and connected inside the storage chamber 6. A handrail 8 is fixedly connected to the surface of the accommodation box 7. A spoiler 9 is fixedly connected to one side of the storage chamber 6 inside the ventilation duct 1.

[0039] For the assembled fiberglass air duct structure for coal engineering and mining provided by the present invention, by setting the ventilation mechanism 2, the traction permanent magnet 16 and the linkage permanent magnet 19 are magnetically connected. The external servo motor 11 drives the internal fan blade 22 to rotate, thereby effectively avoiding mechanical component damage caused by coal ash accumulation inside the servo motor 11. At the same time, the central shaft 21 drives the connecting rod 24 to cooperate with the brush plate 25 to rotate to clean the filter screen 23, and further effectively avoids cleaning inside the pipeline.

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0041] Embodiment 1:

[0042] Please refer to Figure 2 - Figure 5 , an assembled fiberglass air duct structure for coal engineering and mining, which includes a ventilation duct 1. A ventilation mechanism 2 is arranged inside the ventilation duct 1. An air flow guiding mechanism 3 is arranged inside the ventilation duct 1. A vibration mechanism 4 is arranged on the surface of the air flow guiding mechanism 3. Air duct assembly structures 5 are arranged at both ends of the ventilation duct 1;

[0043] The surface of the ventilation duct 1 is provided with a storage chamber 6. An accommodation box 7 is plugged and connected inside the storage chamber 6. A handrail 8 is fixedly connected to the surface of the accommodation box 7. A spoiler 9 is fixedly connected to one side of the storage chamber 6 inside the ventilation duct 1.

[0044] Specifically, a motor positioning frame 10 is fixedly connected to the surface of the ventilation duct 1. A servo motor 11 is fixedly connected inside the motor positioning frame 10. The output end of the servo motor 11 is rotationally connected to a transmission shaft 12. A gear 13 is fixedly connected to the end of the transmission shaft 12 away from the servo motor 11.

[0045] Specifically, an external positioning ring 14 is fixedly connected to the surface of the ventilation duct 1. Bearings are symmetrically arranged inside the external positioning ring 14. A gear ring 15 is rotationally connected inside the external positioning ring 14. A plurality of traction permanent magnets 16 are fixedly connected to the inner wall of the gear ring 15 in an annular array.

[0046] Specifically, internal positioning rings 17 are symmetrically and fixedly connected to the inner wall of the ventilation duct 1. Bearings are arranged inside the internal positioning rings 17. A ring frame 18 is rotationally connected to the inner wall of the internal positioning rings 17. A plurality of linkage permanent magnets 19 are fixedly connected to the surface of the ring frame 18 in an annular array. The linkage permanent magnets 19 are magnetically connected to the traction permanent magnets 16.

[0047] Specifically, a cross-shaped bracket 20 is fixedly connected to the inner wall of the ventilation pipeline 1. A central shaft 21 is rotatably connected inside the cross-shaped bracket 20. A fan blade 22 is fixedly connected to the surface of the central shaft 21. The outer ring of the fan blade 22 is fixedly connected to the inner wall of the ring bracket 18. A filter screen 23 is fixedly connected to the inner wall of the ventilation pipeline 1.

[0048] Through the above structural design, when the device is in use, the servo motor 11 is first turned on. The servo motor 11 drives the transmission shaft 12 to drive the gear 13 to rotate. While the gear 13 rotates, it drives the gear ring 15 to rotate in the middle of the external positioning ring 14. While the gear ring 15 rotates, it drives the internal traction permanent magnet 16 to rotate. Since the traction permanent magnet 16 is magnetically connected to the linkage permanent magnet 19, the traction permanent magnet 16 can drive the linkage permanent magnet 19 to rotate synchronously while rotating. While the linkage permanent magnet 19 rotates, it drives the fan blade 22 to rotate through the ring bracket 18 inside the ventilation pipeline 1, so as to realize the delivery of air flow to the inside of the mine through the ventilation pipeline 1;

[0049] While the fan blade 22 rotates, it drives the central shaft 21 to rotate. The central shaft 21 drives the connecting rod 24 at the front end to rotate. While the air flow passes through the filter screen 23, part of the dust accumulates on the surface of the filter screen 23. By keeping the brush plate 25 in close contact with the surface of the filter screen 23 and the filter screen 23 driving the connecting rod 24 to rotate, the automatic cleaning of the dust on the surface of the filter screen 23 can be realized. After the dust cleaning is completed, it drops into the inside of the storage box 7. After the dust accumulates in the storage box 7 for a long time, the storage box 7 can be taken out from the inside of the storage room 6 for cleaning;

[0050] While the air flow passes through the spoiler 9 inside the ventilation pipeline 1, since one side of the spoiler 9 close to the storage room 6 is higher, the air flow can be made to rise, so as to effectively prevent the air flow from blowing into the inside of the storage box 7 and causing the dust to fly.

[0051] Embodiment 2:

[0052] The coal engineering mine-used assembled fiberglass air duct structure provided in Embodiment 1 is further optimized. Specifically, as Figure 5 - Figure 7 shown, one end of the central shaft 21 away from the cross-shaped bracket 20 extends to the outside of the filter screen 23. A connecting rod 24 is fixedly connected to the surface of the central shaft 21. A brush plate 25 is fixedly connected to the surface of the connecting rod 24. The brush plate 25 is in close contact with the side of the filter screen 23 away from the cross-shaped bracket 20.

[0053] Specifically, a conical air duct 26 is fixedly connected to the middle of the ventilation pipeline 1. Air outlet pipes 27 are fixedly connected to the surface of the conical air duct 26 in a circular array. A fixing frame 28 is fixedly connected to the surface of the ventilation pipeline 1. A spoiler cover 29 is rotatably connected to the surface of the fixing frame 28. A plurality of push plates 30 are fixedly connected to the inner wall of the spoiler cover 29 in a circular array.

[0054] Specifically, a fixing ring 31 is fixedly connected to the inner wall of the ventilation duct 1. A fixing rod 32 is slidably connected inside the fixing ring 31. One end of the fixing rod 32 is fixedly connected to a pushing ring 33. The end of the fixing rod 32 away from the pushing ring 33 is fixedly connected to a shielding ring 34. The shielding ring 34 is slidably connected to the inner wall of the ventilation duct 1. A return spring 35 is sleeved on the surface of the fixing rod 32. Two ends of the return spring 35 are respectively fixedly connected to the fixing ring 31 and the pushing ring 33.

[0055] Specifically, a turning arm 36 is rotatably connected to the surface of the spoiler 29. One end of the turning arm 36 away from the spoiler 29 is fixedly connected to a knocking hammer 37. A toothed ring 38 is fixedly connected to the surface of the ventilation duct 1. The knocking hammer 37 is in close contact with the surface of the toothed ring 38. A torsion spring 39 is sleeved on the surface of the turning arm 36. Two ends of the torsion spring 39 are respectively fixedly connected to the spoiler 29 and the turning arm 36.

[0056] Through the above structural design, the air flow blows into the inside of the conical air duct 26 after passing through the fan blades 22. Since the conical air duct 26 is an outward-expanded cone, the air flow will blow out through the air outlet pipe 27 along the inner wall of the conical air duct 26. While the air flow blows out, it drives the spoiler 29 to rotate through the push plate 30. While the spoiler 29 rotates, it drives the turning arm 36 to rotate. While the turning arm 36 rotates, it can cooperate with the knocking hammer 37 and the torsion spring 39 to knock the toothed ring 38 to generate vibration inside the ventilation duct 1, so as to further clean the dust inside the ventilation duct 1. At the same time, the air flow can be dispersed and discharged after being blocked by the spoiler 29, so as to effectively avoid a large amount of dust flying in the mine due to the direct blowing of the air flow.

[0057] If a large amount of air needs to be supplied to the deep part of the mine in a short time, at this time, the increased power of the servo motor 11 can drive the fan blades 22 to rotate at a high speed. While the fan blades 22 rotate at a high speed, the air flow volume inside the ventilation duct 1 increases. At this time, the air flow blows the pushing ring 33 to pull the fixing rod 32 to move in the direction of the air flow. While the fixing rod 32 moves, it can drive the shielding ring 34 to cover the inner side of the conical air duct 26 to stop the air flow from discharging from the air outlet pipe 27, so as to further increase the air flow volume. At the same time, the return spring 35 is stretched. After the servo motor 11 reduces to a low power, the return spring 35 can pull the pushing ring 33 to make the shielding ring 34 reset.

[0058] Embodiment 3:

[0059] Further optimize the coal engineering mine-used assembled fiberglass air duct structure provided in Embodiment 1 and Embodiment 2. Specifically, as Figure 8As shown in the figure, plug-in positioning blocks 44 are fixedly connected to both ends of the ventilation pipeline 1. Fiberglass air ducts 40 are arranged at both ends of the ventilation pipeline 1. A locking ring 41 is fixedly connected to one end of the fiberglass air duct 40 close to the ventilation pipeline 1. A locking groove 42 is formed inside the locking ring 41. A locking ring 43 is hinged to the surface of the locking ring 41. The plug-in positioning block 44 is inserted into the inner wall of the locking groove 42 and fixed to the fiberglass air duct 40 through the locking ring 43.

[0060] Through the above structural design, after the device is used for a long time as a whole, the bolt at the connection between the locking ring 43 and the locking ring 41 is disassembled to stop the locking ring 43 from limiting the ventilation pipeline 1, so that the overall rapid disassembly of the ventilation pipeline 1 can be realized.

Claims

1. A prefabricated fiberglass air duct structure for coal engineering mines, characterized in that; It includes a ventilation pipeline (1), a ventilation mechanism (2) is arranged inside the ventilation pipeline (1), an air flow guiding mechanism (3) is arranged inside the ventilation pipeline (1), a vibration mechanism (4) is arranged on the surface of the air flow guiding mechanism (3), and air duct assembly structures (5) are arranged at both ends of the ventilation pipeline (1); A storage chamber (6) is formed on the surface of the ventilation pipeline (1), a storage box (7) is inserted and connected inside the storage chamber (6), a handrail (8) is fixedly connected to the surface of the storage box (7), and a spoiler (9) is fixedly connected to one side of the storage chamber (6) inside the ventilation pipeline (1).

2. The assembled glass fiber reinforced plastic air duct structure for coal engineering mines according to claim 1, characterized in that, A motor positioning bracket (10) is fixedly connected to the surface of the ventilation pipeline (1), a servo motor (11) is fixedly connected inside the motor positioning bracket (10), a transmission shaft (12) is rotatably connected to the output end of the servo motor (11), and a gear (13) is fixedly connected to one end of the transmission shaft (12) away from the servo motor (11).

3. The coal engineering mine - used assembled fiberglass air duct structure according to claim 2, characterized in that, An external positioning ring (14) is fixedly connected to the surface of the ventilation pipeline (1), bearings are symmetrically arranged inside the external positioning ring (14), a gear ring (15) is rotatably connected inside the external positioning ring (14), and a plurality of traction permanent magnets (16) are fixedly connected to the inner wall of the gear ring (15) in an annular array.

4. The assembled FRP air duct structure for coal engineering mines according to claim 3, characterized in that, Internal positioning rings (17) are symmetrically and fixedly connected to the inner wall of the ventilation pipeline (1), bearings are arranged inside the internal positioning rings (17), a ring frame (18) is rotatably connected to the inner wall of the internal positioning rings (17), a plurality of linkage permanent magnets (19) are fixedly connected to the surface of the ring frame (18) in an annular array, and the linkage permanent magnets (19) are magnetically connected to the traction permanent magnets (16).

5. The prefabricated glass fiber reinforced plastic air duct structure for coal engineering mines according to claim 4, characterized in that, A cross bracket (20) is fixedly connected to the inner wall of the ventilation pipeline (1), a central shaft (21) is rotatably connected inside the cross bracket (20), a fan blade (22) is fixedly connected to the surface of the central shaft (21), the outer ring of the fan blade (22) is fixedly connected to the inner wall of the ring frame (18), and a filter screen (23) is fixedly connected to the inner wall of the ventilation pipeline (1).

6. The assembled glass fiber reinforced plastic air duct structure for coal engineering mining according to claim 5, characterized in that, One end of the central shaft (21) away from the cross bracket (20) extends to the outside of the filter screen (23), a connecting rod (24) is fixedly connected to the surface of the central shaft (21), a brush plate (25) is fixedly connected to the surface of the connecting rod (24), and the brush plate (25) is in close contact with the side of the filter screen (23) away from the cross bracket (20).

7. The assembled FRP air duct structure for coal engineering mines according to claim 6, characterized in that, A conical air duct (26) is fixedly connected to the middle of the ventilation pipeline (1), air outlet pipes (27) are fixedly connected to the surface of the conical air duct (26) in an annular array, a fixing frame (28) is fixedly connected to the surface of the ventilation pipeline (1), a spoiler cover (29) is rotatably connected to the surface of the fixing frame (28), and a plurality of push plates (30) are fixedly connected to the inner wall of the spoiler cover (29) in an annular array.

8. The assembled FRP air duct structure for coal engineering mines according to claim 7, characterized in that, A fixing ring (31) is fixedly connected to the inner wall of the ventilation pipeline (1). A fixing rod (32) is slidably connected inside the fixing ring (31). One end of the fixing rod (32) is fixedly connected to a pushing ring (33). The end of the fixing rod (32) far from the pushing ring (33) is fixedly connected to a shielding ring (34). The shielding ring (34) is slidably connected to the inner wall of the ventilation pipeline (1). A return spring (35) is sleeved on the surface of the fixing rod (32). Two ends of the return spring (35) are respectively fixedly connected to the fixing ring (31) and the pushing ring (33).

9. The coal engineering mine - used assembled fiberglass air duct structure according to claim 8, characterized in that, A turning arm (36) is rotatably connected to the surface of the spoiler (29). A knocking hammer (37) is fixedly connected to the end of the turning arm (36) far from the spoiler (29). A toothed ring (38) is fixedly connected to the surface of the ventilation pipeline (1). The knocking hammer (37) is in close contact with the surface of the toothed ring (38). A torsion spring (39) is sleeved on the surface of the turning arm (36). Two ends of the torsion spring (39) are respectively fixedly connected to the spoiler (29) and the turning arm (36).

10. The coal engineering mine - used assembled fiberglass air duct structure according to claim 9, characterized in that, Plug-in positioning blocks (44) are fixedly connected to both ends of the ventilation pipeline (1). Fiberglass air ducts (40) are arranged at both ends of the ventilation pipeline (1). A locking ring (41) is fixedly connected to the end of the fiberglass air duct (40) close to the ventilation pipeline (1). A locking groove (42) is formed inside the locking ring (41). A locking ring (43) is hingedly connected to the surface of the locking ring (41). The plug-in positioning block (44) is inserted into the inner wall of the locking groove (42) and fixed to the fiberglass air duct (40) through the locking ring (43).

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