Air purification channel capable of adjusting ventilation quantity

Abstract

The invention relates to the technical field of mine mining, in particular to an air purification channel capable of adjusting ventilation quantity, which comprises a connecting frame, a return pipe, an air inlet chamber and the like, the left part of the connecting frame is connected with the return pipe, and the front part of the connecting frame is connected with the air inlet chamber. When gas in the exhaust chamber enters the return pipe, the detection probe detects the gas content in the gas, and when the gas content is detected, the controller controls the motor to be started to enable the opening and closing plate to close the return pipe and controls the first fan to stop running to enable the gas inlet chamber to stop feeding gas, so that the purpose that when the gas is detected, the gas in the gas inlet chamber is stopped is achieved. The backflow pipe can be sealed, gas is prevented from flowing back into the mine, meanwhile, gas inlet of the gas inlet chamber can be stopped, and the gas exhaust speed is increased.

Description

Technical Field

[0001] The invention relates to the technical field of mine mining, and in particular to an air purification channel with adjustable ventilation volume. Background Art

[0002] The air purification channel in the mine is a facility used to improve the air quality in the mine and protect the health of miners. During the mining process, due to ore crushing, drilling, blasting and other activities, a large amount of dust, harmful gases and steam will be generated. These pollutants pose a threat to human health, so measures need to be taken to purify the air.

[0003] The existing mine air purification channel allows external air to enter the mine through the air intake chamber, and then discharges the air in the mine from the exhaust chamber. A part of the air in the mine flows into the air intake chamber from the return pipe, and the air in the air intake chamber is heated to reduce energy loss, thereby purifying the air in the mine. However, since the air discharged from the mine may contain gas, the gas will flow back into the mine from the return pipe, resulting in a high gas concentration in the mine, which is more dangerous.

[0004] Therefore, an air purification channel with adjustable ventilation volume has been developed, which can close the reflux pipe when gas is detected to prevent the gas from flowing back into the mine, and can also stop the air intake chamber from taking in air and speed up the gas discharge. Summary of the invention

[0005] In order to overcome the disadvantage of existing mine air purification channels, the air discharged from the mine may contain gas, and the gas will flow back into the mine from the return pipe, resulting in a high gas concentration in the mine, which is more dangerous. The present invention provides an air purification channel with adjustable ventilation volume, which can close the return pipe when gas is detected to prevent the gas from flowing back into the mine, and at the same time stop the air intake of the air intake chamber to speed up the gas discharge.

[0006] An air purification channel with adjustable ventilation volume comprises a connecting frame, a return pipe, an air intake chamber, a first fan, an exhaust chamber, a second fan, an adjusting mechanism and a control mechanism, wherein the left portion of the connecting frame is connected to the return pipe, the front portion of the connecting frame is connected to the air intake chamber, the interior of the air intake chamber is connected to two left and right first fans, the rear portion of the connecting frame is connected to the exhaust chamber, the interior of the exhaust chamber is connected to two left and right second fans, both the exhaust chamber and the air intake chamber are connected to the return pipe, the air intake chamber is provided with an adjusting mechanism capable of adjusting the air intake volume, and the return pipe is provided with a control mechanism capable of preventing gas backflow.

[0007] Further description: a mounting groove is provided on the connecting frame.

[0008] It is further explained that barrier nets are provided on both the left and right sides of the air inlet chamber and the exhaust chamber.

[0009] Further explanation, the adjustment mechanism includes a connecting frame, a rotating fin, a belt, an adjusting plate, a connecting support frame, a fixed support frame, a first spring and a clamping assembly. The inner sides of the left and right parts of the air intake chamber are connected to the connecting frames, and the connecting frames are located on the right part of the first fan. A plurality of rotating fins are rotatably connected to the connecting frames, and a belt is wound around two adjacent rotating fins through a transmission wheel. The front sides of the left and right parts of the air intake chamber are connected to the connecting support frames, and the front parts of the lowest rotating fins are connected to the fixed supports, and the fixed supports are slidably connected to the adjacent connecting support frames. The front sides of the middle parts of the connecting support frames are rotatably connected to adjusting columns, and the adjusting columns are connected to adjusting plates, and the adjusting plates are slidably connected to the adjacent connecting support frames. The fixed supports are connected to the first springs between the adjacent adjusting plates, and the connecting support frames are provided with a clamping assembly. According to the ventilation requirements in the mine, the adjusting columns are rotated to drive the adjusting plates to rotate, so that the adjusting plates squeeze the first spring, and the tightening degree of the first spring is adjusted so that the specified air volume in the air intake chamber can be reached to drive the rotating fins to rotate, and the connecting frame is opened to let in air.

[0010] Further description, the locking assembly includes an adjusting column, a locking column and a second spring. The locking column is slidably connected to the front side of the lower part of the connecting support frame. The locking column is engaged with the adjacent adjusting column. The second spring is connected between the locking column and the connected connecting support frame.

[0011] Further description, the control mechanism includes a fixed connecting pipe, fixing screws, a detection probe, a controller, a motor and an opening and closing plate. The left rear part of the return pipe is detachably connected to the fixed connecting pipe by multiple fixing screws, the fixed connecting pipe is threadedly connected to the detection probe, the left side of the detection probe is connected to the controller, the first fans are connected to the controller by wires, the left middle part of the return pipe is connected to the motor, the controller and the motor are connected by wires, an opening and closing plate is connected to the motor output shaft, the opening and closing plate is rotatably connected to the return pipe, when the indoor gas is discharged into the return pipe, the detection probe detects the gas content in the gas, when the gas content is detected, the controller controls the motor to start, so that the opening and closing plate closes the return pipe, and at the same time controls the first fan to stop running, so that the air intake chamber stops taking in air.

[0012] Further description, it also includes a purification mechanism, the purification mechanism includes a fixed plate, a purification plate, a wing frame, a liquid inlet pipe, a connecting coil, a liquid outlet pipe and a connecting fixing frame. The lower side of the middle part of the air inlet chamber is detachably connected with a fixed plate by multiple bolts, and multiple purification plates are clamped on the upper side of the fixed plate. The purification plates are all in contact with the air inlet chamber. The inner side of the middle part of the air inlet chamber is connected with a wing frame, and the front side of the middle part of the air inlet chamber is connected with a connecting fixing frame. The right part of the connecting fixing frame is connected with the liquid inlet pipe, and the wing frame is connected with a connecting coil. The connecting coil is connected to the liquid inlet pipe, and the left part of the connecting fixing frame is connected to the liquid outlet pipe. The other end of the connecting coil is connected to the liquid outlet pipe. After external air enters the air inlet chamber, the external air is filtered by the purification plate, and then hot liquid is introduced into the liquid inlet pipe, so that the hot liquid flows into the connecting coil, dissipates heat through the wing frame, heats the external air, and flows out from the liquid outlet pipe for circulation after passing through the connecting coil.

[0013] Further explanation: joints are provided on the lower sides of the liquid outlet pipe and the liquid inlet pipe.

[0014] Further description, also includes a prompt mechanism, the prompt mechanism includes a connecting block, a fixed connecting bracket, a knocking plate, a torsion spring, a connected fixed support frame, a button and an alarm, the fixed bracket is connected with a connecting block, the front sides of the left and right parts of the air intake chamber are connected with a fixed connecting bracket, the fixed connecting bracket is rotatably connected with a knocking plate, the connecting blocks are squeezed and matched with adjacent knocking plates, and the knocking plates are connected to the fixed connecting brackets with two upper and lower torsion springs, the front sides of the left and right parts of the air intake chamber are connected with a connected fixed support frame, the fixed connecting bracket and the connecting block are located inside the connecting support frame, the front side of the connected fixed support frame is connected with an alarm, the middle and rear sides of the alarm are slidably connected with a button, the knocking plates are squeezed and matched with adjacent buttons, and the buttons pass through the adjacent connected fixed support frames. When the air intake in the air intake chamber stops, the first spring rebounds, so that the fixed bracket is reset, and the rotating fins are closed. When the fixed bracket is reset, the connecting block is driven to move and squeeze the knocking plate, the torsion spring is deformed, and the button is pressed when the knocking plate rotates, so that the alarm issues an alarm reminder.

[0015] Further explanation: the connection blocks are all wedge-shaped.

[0016] The beneficial effects of the present invention are as follows: 1. When the indoor gas is discharged into the return pipe, the detection probe detects the gas content in the gas. When the gas content is detected, the controller controls the motor to start, so that the opening and closing plate closes the return pipe, and at the same time controls the first fan to stop running, so that the air intake chamber stops taking in air. When gas is detected, the return pipe can be closed to prevent the gas from flowing back into the mine, and at the same time, the air intake chamber can stop taking in air, thereby accelerating the gas discharge speed.

[0017] 2. The present invention pulls the positioning column to move away from the adjusting column according to the ventilation demand in the mine, and the second spring is squeezed and contracted. Then the adjusting column is rotated to drive the adjusting plate to rotate, so that the adjusting plate squeezes the first spring and adjusts the tightness of the first spring, thereby achieving the effect of being able to adjust the air intake volume in the air intake chamber and adapting to the ventilation needs in different mines.

[0018] 3. The present invention filters the external air through the purification plate, and then introduces hot liquid into the liquid inlet pipe, so that the hot liquid flows into the connecting coil, dissipates heat through the fin frame, heats the external air, and the hot liquid flows through the connecting coil and flows out from the liquid outlet pipe for circulation, thereby achieving the effect of heating and filtering the external air, so as to improve the working environment in the mine.

[0019] 4. In the present invention, when the air intake in the air intake chamber stops, the first spring rebounds, so that the fixed bracket is reset and the rotating fin is closed. When the fixed bracket is reset, the connecting block is driven to move and squeeze the knocking plate, and the torsion spring is deformed. When the knocking plate rotates, the button is pressed, so that the alarm sounds an alarm reminder, thereby achieving the effect of reminding the staff that the air intake chamber is in a closed state, so that the staff can take corresponding measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a sectional view of the first partial three-dimensional structure of the present invention.

[0022] Figure 3 It is a sectional view of a second partial three-dimensional structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0024] Figure 5 It is a three-dimensional structural cross-sectional view of the adjustment mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the purification mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of a first partial three-dimensional structure of the purification mechanism of the present invention.

[0028] Fig. 9 It is an exploded view of a second partial three-dimensional structure of the purification mechanism of the present invention.

[0029] Fig.10 It is a three-dimensional structural cross-sectional diagram of the control mechanism of the present invention.

[0030] Fig.11 It is a partial three-dimensional structure exploded diagram of the control mechanism of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the prompting mechanism of the present invention.

[0032] Fig.13 It is a three-dimensional structural schematic diagram of the prompting mechanism of the present invention.

[0033] In the above figures: 1: connecting frame, 10: reflux pipe, 2: air inlet chamber, 20: first fan, 3: exhaust chamber, 30: second fan, 4: adjustment mechanism, 40: connecting frame, 41: rotating fin, 42: belt, 43: adjustment plate, 44: connecting support frame, 45: fixed bracket, 46: first spring, 47: adjustment column, 48: positioning column, 49: second spring, 5: purification mechanism, 50: fixed plate, 51: purification plate, 52: wing frame, 53: liquid inlet pipe, 54: connecting coil, 55: liquid outlet pipe, 56: connecting fixed frame, 6: control mechanism, 60: fixed connecting pipe, 61: fixing screw, 62: detection probe, 63: controller, 64: motor, 65: opening and closing plate, 7: prompt mechanism, 70: connecting block, 71: fixed connecting bracket, 72: knocking plate, 73: torsion spring, 74: connecting fixed support frame, 75: button, 76: alarm. DETAILED DESCRIPTION

[0034] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0035] An air purification channel with adjustable ventilation volume, such as Figure 1-Figure 4 As shown, it includes a connecting frame 1, a return pipe 10, an air intake chamber 2, a first fan 20, a discharge chamber 3, a second fan 30, an adjusting mechanism 4 and a control mechanism 6. The return pipe 10 is connected to the left side of the connecting frame 1, and a mounting groove is provided on the connecting frame 1 for easy installation and fixation. The front part of the connecting frame 1 is connected to the air intake chamber 2, and the inside of the air intake chamber 2 is connected to two left and right first fans 20. The rear part of the connecting frame 1 is connected to the discharge chamber 3. The left and right sides of the air intake chamber 2 and the discharge chamber 3 are both provided with blocking nets for intercepting large particles of impurities in the gas. The inside of the discharge chamber 3 is connected to two left and right second fans 30. The discharge chamber 3 and the air intake chamber 2 are both connected to the return pipe 10. The air intake chamber 2 is provided with an adjusting mechanism 4, and the return pipe 10 is provided with a control mechanism 6.

[0036] like Figure 1 , Figure 5 and Figure 6 As shown, the adjustment mechanism 4 includes a connecting frame 40, a rotating fin 41, a belt 42, an adjusting plate 43, a connecting support frame 44, a fixing support 45, a first spring 46 and a positioning assembly. The inner sides of the left and right parts of the air inlet chamber 2 are connected to the connecting frame 40, and the connecting frame 40 is located on the right part of the first fan 20. Eight rotating fins 41 are rotatably connected to the connecting frame 40, and a belt 42 is wound around two adjacent rotating fins 41 through a transmission wheel. The front sides of the left and right parts of the air inlet chamber 2 are connected to the connecting support frame 44, and the front of the lowest rotating fin 41 is connected to the fixing support 45, and the fixing support 45 is connected to the adjacent connecting support frame 44. Sliding connection, the front side of the middle part of the connecting support frame 44 is rotatably connected with an adjusting column 47, and the adjusting plate 43 is connected to the adjusting column 47. The adjusting plate 43 is slidably connected to the adjacent connecting support frame 44. The fixed bracket 45 is connected to the adjacent adjusting plate 43 with a first spring 46. The connecting support frame 44 is provided with a locking assembly, and the locking assembly includes an adjusting column 47, a locking column 48 and a second spring 49. The front side of the lower part of the connecting support frame 44 is slidably connected with a locking column 48, and the locking column 48 is engaged with the adjacent adjusting column 47, and the locking column 48 is connected to the connected connecting support frame 44 with a second spring 49.

[0037] like Figure 4 , Fig.10 and Fig.11 As shown, the control mechanism 6 includes a fixed connecting pipe 60, a fixing screw 61, a detection probe 62, a controller 63, a motor 64 and an opening and closing plate 65. The fixed connecting pipe 60 is detachably connected to the left side of the rear of the return pipe 10 through six fixing screws 61, the detection probe 62 is threadedly connected to the fixed connecting pipe 60, the left side of the detection probe 62 is connected to the controller 63, the first fan 20 is connected to the controller 63 through electric wires, the motor 64 is connected to the left side of the middle of the return pipe 10, the controller 63 is connected to the motor 64 through electric wires, the output shaft of the motor 64 is connected to the opening and closing plate 65, and the opening and closing plate 65 is rotatably connected to the return pipe 10.

[0038] When using the present invention, first install the connecting frame 1 in the mine ventilation area, start the first fan 20, so that the outside air enters the mine from the air intake chamber 2, and then start the second fan 30 to discharge the air in the mine from the exhaust chamber 3. When the air in the mine is discharged from the exhaust chamber 3, a part of it enters the air intake chamber 2 from the return pipe 10, and the outside air in the air intake chamber 2 is heated to reduce energy loss. When the outside air enters the air intake chamber 2, it pushes the bottom rotating fin 41 to rotate, and the belt 42 rotates to drive the other rotating fins 41 to rotate, so that the outside air enters the air intake chamber 2. When the bottom rotating fin 41 rotates, it drives the fixed bracket 45 to rotate, so that the fixed bracket 45 squeezes the first elastic The spring 46 contracts. When air is introduced, the locking column 48 can be pulled to move away from the adjusting column 47 according to the ventilation demand in the mine. The second spring 49 is squeezed and contracted, and then the adjusting column 47 is rotated to drive the adjusting plate 43 to rotate, so that the adjusting plate 43 squeezes the first spring 46 and adjusts the tightness of the first spring 46. After the adjustment, the locking column 48 is released, and the second spring 49 rebounds, so that the locking column 48 is reset and re-engaged with the adjusting column 47 to fix the adjusting column 47. Only when the specified air volume is reached in the air intake chamber 2 can the rotating fin 41 be driven to rotate, and the connecting frame 40 is opened for air introduction, thereby playing a role in adjusting the air intake volume in the air intake chamber 2, so as to adapt to the ventilation needs in different mines.

[0039] The control mechanism 6 of the device can be used to prevent gas backflow. The fixed connecting pipe 60 is installed on the return pipe 10 by the fixing screw 61, and then the detection probe 62 is connected to the fixed connecting pipe 60. When the gas in the exhaust chamber 3 enters the return pipe 10, the detection probe 62 detects the gas content in the gas. When the gas content is detected, the controller 63 controls the motor 64 to start, so that the opening and closing plate 65 closes the return pipe 10, and at the same time controls the first fan 20 to stop running, so that the air intake chamber 2 stops intake. Thereby, when gas is detected, the return pipe 10 can be closed to prevent the gas from flowing back into the mine, and at the same time, the air intake chamber 2 can stop intake, thereby accelerating the gas discharge speed.

[0040] like Figure 1 , Figure 7 , Figure 8 and Fig. 9As shown, a purification mechanism 5 is also included, which includes a fixed plate 50, a purification plate 51, a wing frame 52, a liquid inlet pipe 53, a connecting coil 54, a liquid outlet pipe 55 and a connecting fixed frame 56. The fixed plate 50 is detachably connected to the lower middle side of the air inlet chamber 2 by four bolts, and three purification plates 51 are clamped on the upper side of the fixed plate 50. The purification plates 51 are all in contact with the air inlet chamber 2. The wing frame 52 is connected to the inner side of the middle part of the air inlet chamber 2, and the connecting fixed frame 56 is connected to the front side of the middle part of the air inlet chamber 2. The right part of the connecting fixed frame 56 is connected to the liquid inlet pipe 53, the connecting coil 54 is connected to the wing frame 52, and the connecting coil 54 is connected to the liquid inlet pipe 53. The left part of the connecting fixed frame 56 is connected to the liquid outlet pipe 55, and the liquid outlet pipe 55 and the lower side of the liquid inlet pipe 53 are provided with joints for easy access to the pipeline, and the other end of the connecting coil 54 is connected to the liquid outlet pipe 55.

[0041] The purification mechanism 5 of the device can be used to purify the external air. After the external air enters the air inlet chamber 2, it is filtered by the purification plate 51, and then hot liquid is introduced into the liquid inlet pipe 53, so that the hot liquid flows into the connecting coil 54, and the heat is dissipated through the wing frame 52 to heat the external air. After the hot liquid flows through the connecting coil 54, it flows out from the liquid outlet pipe 55 for circulation, thereby playing the role of heating and filtering the external air, so as to improve the working environment in the mine. When the purification plate 51 needs to be cleaned or replaced, the fixed plate 50 can be disassembled, and then the purification plate 51 can be removed from the fixed plate 50.

[0042] like Figure 1 , Fig.12 and Fig.13 As shown, a prompt mechanism 7 is also included, which includes a connecting block 70, a fixed connecting bracket 71, a knocking plate 72, a torsion spring 73, a connecting fixed support frame 74, a button 75 and an alarm 76. The fixed bracket 45 is connected to the connecting block 70, the front sides of the left and right parts of the air inlet chamber 2 are connected to the fixed connecting bracket 71, and the fixed connecting bracket 71 is rotatably connected to the knocking plate 72. The connecting blocks 70 are squeezed and matched with the adjacent knocking plates 72. The connecting blocks 70 are wedge-shaped, which is convenient for squeezing the knocking plates 72, the knocking plates 72 are connected to the fixed connecting bracket 71 with two upper and lower torsion springs 73, the front sides of the left and right parts of the air intake chamber 2 are connected to the connecting fixed support frame 74, the fixed connecting bracket 71 and the connecting block 70 are located inside the connecting support frame 44, the front sides of the connecting fixed support frame 74 are connected to the alarm 76, the middle and rear sides of the alarm 76 are slidably connected to the buttons 75, the knocking plates 72 are squeezed and matched with the adjacent buttons 75, and the buttons 75 pass through the adjacent connecting fixed support frames 74.

[0043] The reminder mechanism 7 of the device can be used to remind the staff that the air intake chamber 2 is in a closed state. When the air intake in the air intake chamber 2 stops, the first spring 46 rebounds, so that the fixed bracket 45 is reset, and the rotating fin 41 is closed. When the fixed bracket 45 is reset, the connecting block 70 is driven to move and squeeze the knocking plate 72, and the torsion spring 73 is deformed. When the knocking plate 72 rotates, the button 75 is pressed, so that the alarm 76 sounds an alarm reminder, thereby reminding the staff that the air intake chamber 2 is in a closed state, so that the staff can take corresponding measures. After the air intake in the air intake chamber 2 resumes air intake, the connecting block 70 is separated from the knocking plate 72, and the torsion spring 73 is restored, so that the knocking plate 72 is reset and the button 75 is no longer pressed, thereby turning off the alarm 76.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An air purification channel with adjustable ventilation volume, Its characteristics are: The invention comprises a connecting frame (1), a return pipe (10), an air inlet chamber (2), a first fan (20), a discharge chamber (3), a second fan (30), an adjusting mechanism (4) and a control mechanism (6); the left part of the connecting frame (1) is connected to the return pipe (10); the front part of the connecting frame (1) is connected to the air inlet chamber (2); the interior of the air inlet chamber (2) is connected to two left and right first fans (20); the rear part of the connecting frame (1) is connected to the discharge chamber (3); the interior of the discharge chamber (3) is connected to two left and right second fans (30); the discharge chamber (3) and the air inlet chamber (2) are both connected to the return pipe (10); the air inlet chamber (2) is provided with an adjusting mechanism (4) capable of adjusting the air intake volume; and the return pipe (10) is provided with a control mechanism (6) capable of preventing gas backflow.

2. An air purification channel with adjustable ventilation volume according to claim 1, Its characteristics are: The connecting frame (1) is provided with a mounting groove.

3. An air purification channel with adjustable ventilation volume according to claim 1, Its characteristics are: The air inlet chamber (2) and the air discharge chamber (3) are both provided with blocking nets on the left and right sides.

4. An air purification channel with adjustable ventilation volume according to claim 1, Its characteristics are: The adjusting mechanism (4) comprises a connecting frame (40), a rotating fin (41), a belt (42), an adjusting plate (43), a connecting support frame (44), a fixing support frame (45), a first spring (46) and a positioning assembly. The inner sides of the left and right parts of the air inlet chamber (2) are both connected to the connecting frame (40). The connecting frame (40) is located at the right part of the first fan (20). The connecting frame (40) is rotatably connected to a plurality of rotating fins (41). A belt (42) is wound around two adjacent rotating fins (41) via a transmission wheel. The front sides of the left and right parts of the air inlet chamber (2) are both connected to the connecting support frame (44). The front part of the lowest rotating fin (41) is connected to the fixing support frame (45). The fixing support frame (45) is connected to the adjacent connecting support frame (44). The connecting support frame (44) is slidably connected, and the front side of the middle part of the connecting support frame (44) is rotatably connected with an adjusting column (47), and the adjusting column (47) is connected with an adjusting plate (43). The adjusting plate (43) is slidably connected to the adjacent connecting support frame (44), and the fixed bracket (45) is connected with a first spring (46) between the adjacent adjusting plate (43). The connecting support frame (44) is provided with a clamping assembly. According to the ventilation demand in the mine, the adjusting column (47) is rotated to drive the adjusting plate (43) to rotate, so that the adjusting plate (43) squeezes the first spring (46), and the tightening degree of the first spring (46) is adjusted, so that the specified air volume in the air intake chamber (2) can be reached to drive the rotating fin (41) to rotate, and the connecting frame (40) is opened to intake air.

5. An air purification channel with adjustable ventilation volume according to claim 4, Its characteristics are: The locking assembly comprises an adjusting column (47), a locking column (48) and a second spring (49); the locking column (48) is slidably connected to the front side of the lower part of the connecting support frame (44); the locking column (48) is engaged with the adjacent adjusting column (47); and the second spring (49) is connected between the locking column (48) and the connected connecting support frame (44).

6. An air purification channel with adjustable ventilation volume according to claim 5, Its characteristics are: The control mechanism (6) comprises a fixed connection pipe (60), a fixing screw (61), a detection probe (62), a controller (63), a motor (64) and an opening and closing plate (65). The left side of the rear portion of the return pipe (10) is detachably connected to the fixed connection pipe (60) via a plurality of fixing screws (61). The fixed connection pipe (60) is threadedly connected to the detection probe (62). The left side of the detection probe (62) is connected to the controller (63). The first fan (20) is connected to the controller (63) via an electric wire. The left side of the middle portion of the return pipe (10) is connected to the motor (64). 4), the controller (63) is connected to the motor (64) through an electric wire, an opening and closing plate (65) is connected to the output shaft of the motor (64), and the opening and closing plate (65) is rotatably connected to the return pipe (10). When the gas in the exhaust chamber (3) enters the return pipe (10), the detection probe (62) detects the gas content in the gas. When the gas content is detected, the controller (63) controls the motor (64) to start, so that the opening and closing plate (65) closes the return pipe (10), and at the same time controls the first fan (20) to stop running, so that the air intake chamber (2) stops taking in air.

7. An air purification channel with adjustable ventilation volume according to claim 6, Its characteristics are: The invention also comprises a purification mechanism (5), wherein the purification mechanism (5) comprises a fixing plate (50), a purification plate (51), a wing frame (52), a liquid inlet pipe (53), a connecting coil (54), a liquid outlet pipe (55) and a connecting fixing frame (56), wherein the fixing plate (50) is detachably connected to the lower side of the middle part of the air inlet chamber (2) by means of a plurality of bolts, a plurality of purification plates (51) are clamped on the upper side of the fixing plate (50), and the purification plates (51) are all in contact with the air inlet chamber (2), the inner side of the middle part of the air inlet chamber (2) is connected to the wing frame (52), the front side of the middle part of the air inlet chamber (2) is connected to the connecting fixing frame (56), and the right side of the connecting fixing frame (56) is connected to the connecting fixing frame (56). A liquid inlet pipe (53) is provided, a connecting coil (54) is connected to the wing frame (52), the connecting coil (54) is connected to the liquid inlet pipe (53), a liquid outlet pipe (55) is connected to the left of the connecting fixing frame (56), the other end of the connecting coil (54) is connected to the liquid outlet pipe (55), after the external air enters the air inlet chamber (2), the external air is filtered by the purification plate (51), and then hot liquid is introduced into the liquid inlet pipe (53), so that the hot liquid flows into the connecting coil (54), dissipates heat through the wing frame (52), heats the external air, and the hot liquid flows through the connecting coil (54) and flows out from the liquid outlet pipe (55) for circulation.

8. An air purification channel with adjustable ventilation volume according to claim 7, Its characteristics are: The lower sides of the liquid outlet pipe (55) and the liquid inlet pipe (53) are both provided with joints.

9. An air purification channel with adjustable ventilation volume according to claim 7, Its characteristics are: The device also includes a prompt mechanism (7), which includes a connecting block (70), a fixed connecting bracket (71), a knocking plate (72), a torsion spring (73), a connecting fixed support frame (74), a button (75) and an alarm (76). The fixed support frame (45) is connected to the connecting block (70), the front sides of the left and right parts of the air intake chamber (2) are connected to the fixed connecting bracket (71), the fixed connecting bracket (71) is rotatably connected to the knocking plate (72), the connecting block (70) is pressed and matched with the adjacent knocking plate (72), the knocking plate (72) is connected to the connected fixed connecting bracket (71) with two upper and lower torsion springs (73), the front sides of the left and right parts of the air intake chamber (2) are connected to the connecting fixed support frame (74), the fixed connecting bracket ( The connecting block (71) and the connecting block (70) are both located inside the connecting support frame (44), the front side of the connecting fixed support frame (74) is connected to an alarm (76), the middle and rear sides of the alarm (76) are slidably connected to a button (75), the knocking plate (72) is squeezed and matched with the adjacent button (75), and the button (75) passes through the adjacent connecting fixed support frame (74). When the air intake in the air intake chamber (2) stops, the first spring (46) rebounds, so that the fixed support (45) is reset and the rotating fin (41) is closed. When the fixed support (45) is reset, the connecting block (70) is driven to move and squeeze the knocking plate (72) to rotate, the torsion spring (73) is deformed, and the knocking plate (72) is pressed when it rotates, so that the alarm (76) issues an alarm reminder.

10. An air purification passage with adjustable ventilation volume according to claim 9, Its characteristics are: The connecting blocks (70) are all wedge-shaped.

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