An air pollution forecasting device for environmental protection

Abstract

The invention discloses an air pollution forecasting device for environmental protection in the field of air detection technology. The device comprises a rectangular duct, four detection devices, a fan and a driving mechanism, wherein the driving mechanism is connected to the inner wall of the rectangular duct in a transverse sliding manner; the four inner walls of the rectangular duct are all provided with cleaning mechanisms, and the cleaning mechanisms are used to clean the inner wall of the rectangular duct where the cleaning mechanisms are located; the invention arranges a cleaning mechanism in the rectangular duct to clean the dust on the inner wall of the rectangular duct and the protective lens in the detection device, further improving the cleanliness of the interior of the rectangular duct, preventing the dust attached in the rectangular duct from falling into the detected air, causing the detection result to be inconsistent with the actual data; at the same time, it also avoids excessive dust attached to the protective lens, causing the light transmittance of the lens to decrease, causing interference between the light wave emission and light wave reception of the detection device, and affecting the detection result.

Description

Technical Field

[0001] The invention relates to the technical field of air detection, in particular to an air pollution forecasting device for environmental protection. Background Art

[0002] Air pollution forecast is achieved by real-time detection of pollutant concentrations in the air and forecasting the air quality in the area based on changes in concentration. The detection method is mostly through light intensity decay, that is, a special light wave that passes through the sampled air is emitted to the receiver, and the concentration of pollutants in the air is judged based on the attenuation degree of the light wave.

[0003] Since it is necessary to continuously introduce external air into the equipment during the equipment detection process, when the equipment is working, the air is circulating and the dust particles in the air are not easy to adhere to the equipment. However, when the equipment is shut down, the air that has been introduced into the equipment cannot be discharged from the equipment, causing the dust particles in the air in the equipment to be deposited and attached to the detection channel inside the equipment. After repeated cycles, the dust particles deposited in the detection channel will gradually increase, and interfere with the operation of the optical components, resulting in distorted detection results of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an air pollution forecasting device for environmental protection, so as to solve the problem raised in the above-mentioned background technology that during the equipment detection process, it is necessary to continuously introduce external air into the equipment. When the equipment is working, since the air is circulating, the dust particles in the air are not easy to adhere to the equipment. However, when the equipment is shut down, the air that has been introduced into the equipment cannot be discharged from the equipment, so that the dust particles in the air in the equipment are deposited and attached to the detection channel inside the equipment. After repeated cycles, the dust particles deposited in the detection channel will gradually increase, and interfere with the operation of the optical components, resulting in distortion of the equipment's detection results.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air pollution forecasting device for environmental protection, comprising a rectangular duct, four detection devices, and a fan, wherein the four detection devices are respectively embedded in the four side walls of the rectangular duct, the fan is fixedly connected to the right side inside the rectangular duct, and both ends of the rectangular duct are fixedly connected with protective plates, and also includes a driving mechanism, which is laterally slidably connected to the inner wall of the rectangular duct; the four inner walls of the rectangular duct are all provided with a cleaning mechanism, which is transmission-connected to the driving mechanism, and the cleaning mechanism is used to clean the inner wall of the rectangular duct where it is located.

[0006] As a further solution of the present invention, the cleaning mechanism includes two mounting grooves, both of which are opened on the inner wall of the rectangular pipe and located on both sides of the detection device, a mounting plate is arranged in the mounting groove on the right side, a wiping member is arranged on the side of the mounting plate close to the bottom of the mounting groove, a pressure mechanism is arranged on the side of the mounting plate away from the bottom of the mounting groove, and a chamfer is arranged on one side wall of the mounting groove close to the detection device, the pressure mechanism is transmission-connected with the driving mechanism, the driving mechanism can drive the mounting plate to move laterally through the pressure mechanism, the pressure mechanism can apply an extrusion force to the mounting plate against the inner wall of the rectangular pipe, and tilting mechanisms are arranged at both ends of the mounting plate, and the tilting mechanism can tilt the mounting plate when the mounting plate moves laterally.

[0007] As a further solution of the present invention, the driving mechanism includes a slide groove, which is opened on the inner wall of the rectangular pipe and is located on the right side of the mounting plate. A rectangular frame is connected to the slide groove for transverse sliding. Two connecting rods are fixedly connected to the four inner walls of the rectangular frame respectively. The two connecting rods located on the same inner wall of the rectangular frame are jointly transmission-connected to the pressure mechanism on the corresponding inner wall of the rectangular pipe. The rectangular frame is transmission-connected with a transmission mechanism, which is transmission-connected to a fan, and the fan is used to provide kinetic energy for the transmission mechanism. The transmission mechanism can push the rectangular frame to the left when the fan is started, and pull the rectangular frame back to its original position to the right by the rectangular pipe when the fan stops.

[0008] As a further scheme of the present invention, the transmission mechanism includes an oil tank, a connecting pipe is fixedly connected to the left end of the oil tank, a hydraulic pipe is fixedly connected to the left end of the connecting pipe, a piston is elastically slidably connected in the hydraulic pipe, a push rod is fixedly connected to the left end of the piston, and the left end of the push rod is fixedly connected to the rectangular frame; an oil pump is fixedly connected to the connecting pipe in the oil tank, the oil pump is used to input the hydraulic oil in the oil tank into the hydraulic pipe, the oil pump is transmission-connected to an input shaft, the input shaft is used to drive the oil pump to work, the input shaft passes through the oil tank and extends to the outside of the oil tank, the end of the input shaft outside the oil tank is fixedly connected to a transmission wheel, the transmission wheel is transmission-connected to a transmission belt, and the transmission belt is transmission-connected to a power shaft of the fan.

[0009] As a further solution of the present invention, the pressure mechanism includes two L-shaped plates respectively rotatably connected to the connecting rods, the L-shaped plates are vertically slidably connected to a first sliding rod, the first sliding rod is fixedly connected to the mounting plate, and a spring is fixedly connected between the mounting plate and the L-shaped plate.

[0010] As a further solution of the present invention, the tilting mechanism includes two avoidance grooves arranged at the ends of the mounting plate, the avoidance grooves are opened on the inner wall of the rectangular pipe, and track bars are fixedly connected transversely in the avoidance grooves, and guide angles are opened at the ends of the track bars, and mounting shells are fixedly connected to the left and right side walls at both ends of the mounting plate, and the mounting shells are elastically slidably connected to the second sliding rods, and the side walls of the second sliding rods are fixedly connected, and the trigger rods can be squeezed with the track bars; control mechanisms are provided at the ends of the mounting plates, and the control mechanisms can control the second sliding rods on one side of the moving direction of the mounting plate to move toward the bottom of the mounting groove, and the control mechanisms can control the second sliding rods on the side of the mounting plate away from the moving direction to move in a direction away from the bottom of the mounting groove.

[0011] As a further solution of the present invention, the control mechanism includes a rope, which passes through the mounting plate horizontally and the two ends of the rope extend to the mounting shells on the left and right sides of the mounting plate respectively, and the two mounting shells on the left and right sides are fixedly connected with support rods, and the part of the rope extending into the mounting shell is wrapped around the support rod and fixedly connected to the end of the second sliding rod.

[0012] As a further solution of the present invention, the wiping member is fixedly connected to a clamping plate at one end close to the mounting plate, the clamping plate is detachably connected to the corresponding end face of the mounting plate, and a material changing door capable of completely exposing the mounting groove is provided on the outer wall of the rectangular pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention arranges a cleaning mechanism in the rectangular duct to clean the dust on the inner wall of the rectangular duct and the protective lens in the detection device, thereby further improving the cleanliness of the interior of the rectangular duct and preventing the dust attached in the rectangular duct from falling into the air being detected, causing the detection result to be inconsistent with the actual data; at the same time, it also avoids excessive dust adhering to the protective lens, which causes the light transmittance of the lens to decrease, causing interference between the light wave emission and light wave reception of the detection device, and affecting the detection result.

[0015] The present invention is driven by oil pressure, so that the cleaning mechanism moves slowly and stably, preventing the cleaning mechanism from moving too fast, and further coordinating with the blowing of air flow to prevent dust from falling into the inner wall of the rectangular pipe that has been cleaned by the cleaning mechanism during the cleaning process, causing the rectangular pipe to be contaminated again.

[0016] The present invention tilts the mounting plate through a tilting mechanism, thereby increasing the friction between the wiping piece and the inner wall of the rectangular pipe, thereby improving the cleaning effect of the wiping piece; at the same time, the tilting of the mounting plate is utilized to concentrate dust on the left side of the wiping piece, so that the right side of the wiping piece will not be contaminated by dust, and further, the inner wall of the rectangular pipe will not be contaminated during the rightward resetting process of the cleaning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of a half-sectioned rectangular pipe of the overall structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the front cross-section structure of the overall structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the top-sectional structure of the present invention;

[0021] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the track strip;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 7 for Figure 4 Schematic diagram of the cross-section structure at the rope;

[0024] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point B in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 11-rectangular pipe, 12-detection device, 13-fan, 14-protective plate, 21-slide, 22-rectangular frame, 23-connecting rod, 31-oil tank, 32-connecting pipe, 33-hydraulic pipe, 34-piston, 35-push rod, 36-oil pump, 38-transmission wheel, 39-transmission belt, 41-mounting groove, 42-mounting plate, 43-wiping piece, 44-chamfer, 51-L-shaped plate, 52-first slide bar, 53-spring, 61-avoidance groove, 62-track bar, 63-mounting shell, 64-second slide bar, 65-trigger rod, 66-guide angle, 71-rope, 72-support rod, 81-clamping plate, 82-replacement door. DETAILED DESCRIPTION

[0027] See also Figure 1-Figure 8The present invention provides a technical solution: an air pollution forecasting device for environmental protection, comprising a rectangular duct 11, four detection devices 12, and a fan 13. The four detection devices 12 are respectively embedded in the four side walls of the rectangular duct 11, and the fan 13 is fixedly connected to the right side of the inside of the rectangular duct 11. Both ends of the rectangular duct 11 are fixedly connected with protective plates 14. The device also includes a driving mechanism, which is laterally slidably connected to the inner wall of the rectangular duct 11; the four inner walls of the rectangular duct 11 are all provided with cleaning mechanisms, which are transmission-connected to the driving mechanism, and the cleaning mechanisms are used to clean the inner wall of the rectangular duct 11 where the cleaning mechanisms are located.

[0028] When working, the fan 13 is started, and the fan 13 sucks in the outside air from the right end of the rectangular duct 11 and discharges it from the left end, so that the outside air passes through the rectangular duct 11 and passes through the detection device 12 in the rectangular duct 11 for air pollution detection (the detection principle of the detection device 12 is to detect the attenuation intensity of the light intensity after passing through the air to judge the concentration of pollutants in the air); the driving mechanism is started, and the driving mechanism controls the cleaning mechanism to work, and the cleaning mechanism further cleans the inner wall of the rectangular duct 11 where it is located, including the detection device 12 components on the inner wall of the rectangular duct 11, and removes dust on the inner wall of the rectangular duct 11 and the protective lens in the detection device 12, to prevent dust from accumulating on the inner wall of the rectangular duct 11 and falling into the air under the blowing of airflow during the detection process, affecting the detection result, and at the same time prevent the protective lens from being too adhered to dust, which interferes with the light wave emission and light wave reception of the detection device 12, causing the detection result to be affected.

[0029] The present invention provides a cleaning mechanism in the rectangular duct 11 to clean the dust on the inner wall of the rectangular duct 11 and the protective lens in the detection device 12, thereby further improving the cleanliness of the interior of the rectangular duct 11 and preventing the dust attached to the rectangular duct 11 from falling into the air being detected, causing the detection result to be inconsistent with the actual data; at the same time, it also avoids excessive dust adhering to the protective lens, which causes the light transmittance of the lens to decrease, causing interference between the light wave emission and light wave reception of the detection device 12, and affecting the detection result.

[0030] As a further solution of the present invention, the cleaning mechanism includes two mounting grooves 41, both mounting grooves 41 are opened on the inner wall of the rectangular pipe 11 and are located on both sides of the detection device 12, a mounting plate 42 is arranged in the mounting groove 41 on the right side, a wiping member 43 is arranged on the side of the mounting plate 42 close to the bottom of the mounting groove 41, a pressure mechanism is arranged on the side of the mounting plate 42 away from the bottom of the mounting groove 41, a chamfer 44 is arranged on one side wall of the mounting groove 41 close to the detection device 12, the pressure mechanism is transmission-connected with the driving mechanism, the driving mechanism can drive the mounting plate 42 to move laterally through the pressure mechanism, the pressure mechanism can apply an extrusion force to the mounting plate 42 against the inner wall of the rectangular pipe 11, and tilting mechanisms are arranged at both ends of the mounting plate 42, and the tilting mechanism can tilt the mounting plate 42 when the mounting plate 42 moves laterally.

[0031] During operation, the driving mechanism drives the mounting plate 42 to move laterally, and the mounting plate 42 is separated from the mounting groove 41 through the chamfer 44 and enters the rectangular pipe 11 to move laterally. At the same time, under the extrusion force of the pressure mechanism, the mounting plate 42 squeezes the wiping member 43 against the inner wall of the rectangular pipe 11, and further during the movement of the mounting plate 42, the mounting plate 42 drives the wiping member 43 to wipe the inner wall of the rectangular pipe 11 and the protective lens on the inner wall of the rectangular pipe 11; at the same time, the tilting mechanism tilts the mounting plate 42, and further makes the extrusion force of the pressure mechanism between the wiping member 43 and the inner wall of the rectangular pipe 11 more concentrated, thereby making the wiping effect of the wiping member 43 more reliable.

[0032] As a further solution of the present invention, the driving mechanism includes a slide groove 21, which is opened on the inner wall of the rectangular pipe 11 and is located on the right side of the mounting plate 42. A rectangular frame 22 is horizontally slidably connected in the slide groove 21. Two connecting rods 23 are fixedly connected to the four inner walls of the rectangular frame 22 respectively. The two connecting rods 23 located on the same inner wall of the rectangular frame 22 are jointly transmission-connected to the pressure mechanism on the corresponding inner wall of the rectangular pipe 11. The rectangular frame 22 is transmission-connected with a transmission mechanism, which is transmission-connected to the fan 13. The fan 13 is used to provide kinetic energy for the transmission mechanism; the transmission mechanism can push the rectangular frame 22 to the left when the fan 13 starts, and pull the rectangular frame 22 back to the right by the rectangular pipe 11 when the fan 13 stops.

[0033] As a further solution of the present invention, the transmission mechanism includes an oil tank 31, a connecting pipe 32 is fixedly connected to the left end of the oil tank 31, a hydraulic pipe 33 is fixedly connected to the left end of the connecting pipe 32, a piston 34 is elastically slidably connected in the hydraulic pipe 33, a push rod 35 is fixedly connected to the left end of the piston 34, and the left end of the push rod 35 is fixedly connected to the rectangular frame 22; an oil pump 36 is fixedly connected to the connecting pipe 32 in the oil tank 31, the oil pump 36 is used to input the hydraulic oil in the oil tank 31 into the hydraulic pipe 33, the oil pump 36 is transmission-connected to an input shaft, the input shaft is used to drive the oil pump 36 to work, the input shaft passes through the oil tank 31 and extends to the outside of the oil tank 31, the end of the input shaft located outside the oil tank 31 is fixedly connected to a transmission wheel 38, the transmission wheel 38 is transmission-connected to a transmission belt 39, and the transmission belt 39 is transmission-connected to the power shaft of the fan 13.

[0034] During operation, as the fan 13 starts the device to collect air and perform detection, the fan 13 drives the oil pump 36 to work through the transmission belt 39, and the oil pump 36 begins to input the hydraulic oil in the oil tank 31 into the hydraulic pipe 33 through the connecting pipe 32. The hydraulic pressure in the hydraulic pipe 33 increases further, and drives the piston 34 to slide to the left despite the elastic force. Further, the piston 34 pushes the rectangular frame 22 to the left through the push rod 35, so that the rectangular frame 22 pushes the cleaning mechanism to the left, and then the wiping member 43 in the cleaning mechanism can wipe the inner wall of the rectangular pipe 11 and the protective lens in the detection device 12 during the leftward movement. Clean until the cleaning mechanism moves to the installation groove 41 on the left, so that the installation plate 42 and the wiping piece 43 in the cleaning mechanism enter the installation groove 41 on the left for storage (to prevent the wiping piece 43 from being contaminated by the air entering the equipment during the operation of the equipment); when the equipment stops detecting that the fan 13 is shut down, the oil pump 36 stops working accordingly, and the piston 34 moves rightward and resets under the action of elastic force, and the hydraulic oil in the hydraulic pipe 33 is re-input into the oil tank 31 through the connecting pipe 32 for storage, and at the same time, the piston 34 pulls the rectangular frame 22 back to the right through the push rod 35, leaving it for the next time the equipment is started to clean the equipment.

[0035] The present invention is driven by oil pressure, so that the cleaning mechanism moves slowly and steadily, preventing the cleaning mechanism from moving too fast, and further coordinating with the blowing of air flow to prevent dust from falling into the inner wall of the rectangular duct 11 that has been cleaned by the cleaning mechanism during the cleaning process, causing the rectangular duct 11 to be contaminated again.

[0036] In addition, the fan 13 is used to drive the oil pump 36 to move and clean the cleaning mechanism. When the equipment is turned on, the cleaning mechanism performs cleaning work, and when the equipment is turned off, the cleaning mechanism is reset. During the operation of the equipment, the cleaning mechanism remains static. Furthermore, during the operation of the equipment, the cleaning mechanism will not interfere with the detection device 12, and at the same time, during the operation of the equipment, wind force is used to remove dust that may be attached to the inner wall of the rectangular pipe 11.

[0037] As a further solution of the present invention, the pressure mechanism includes two L-shaped plates 51 respectively connected to the connecting rod 23 for rotation, the L-shaped plate 51 is vertically slidably connected to a first slide rod 52, the first slide rod 52 is fixedly connected to the mounting plate 42, and a spring 53 is fixedly connected between the mounting plate 42 and the L-shaped plate 51.

[0038] As a further solution of the present invention, the tilting mechanism includes two avoidance grooves 61 arranged at the ends of the mounting plate 42, the avoidance grooves 61 are opened on the inner wall of the rectangular pipe 11, and a track bar 62 is fixedly connected transversely in the avoidance grooves 61, and a guide angle 66 is opened at the end of the track bar 62, and a mounting shell 63 is fixedly connected to the left and right side walls at both ends of the mounting plate 42, and the mounting shell 63 is elastically slidably connected to the second slide bar 64, and the side walls of the second slide bar 64 are fixedly connected to the trigger rod 65, and the trigger rod 65 can be squeezed with the track bar 62; a control mechanism is provided at the end of the mounting plate 42, and the control mechanism can control the second slide bar 64 on the side of the moving direction of the mounting plate 42 to move toward the bottom of the mounting groove 41, and the control mechanism can control the second slide bar 64 on the side of the mounting plate 42 away from the moving direction to move in a direction away from the bottom of the mounting groove 41.

[0039] As a further solution of the present invention, the control mechanism includes a rope 71, which runs horizontally through the mounting plate 42 and the two ends of the rope 71 extend into the mounting shells 63 on the left and right sides of the mounting plate 42 respectively, and the two mounting shells 63 on the left and right sides are fixedly connected with support rods 72, and the part of the rope 71 extending into the mounting shells 63 is wrapped around the support rod 72 and fixedly connected to the end of the second sliding rod 64.

[0040] During operation, taking the cleaning mechanism on the inner side wall of the lower end of the rectangular duct 11 as an example, during the process of the cleaning mechanism moving to the left, the trigger rod 65 on the left first enters the lower end of the track bar 62 through the guide angle 66, and the mounting plate 42 moves upward through the chamfer 44, thereby causing the mounting shell 63 to move upward. Since the trigger rod 65 on the left enters the lower end of the track bar 62 at this time, under the limiting action of the track bar 62, the second slide bar 64 on the left cannot move upward, and the corresponding second slide bar 64 on the left overcomes the elastic force and moves downward relative to the mounting shell 63, and the second slide bar 64 pulls the second slide bar 64 on the right upward through the rope 71, so that the second slide bar 64 on the right drives the trigger rod 65 thereon to move upward to the upper end of the track bar 62. Further, during the process of the mounting plate 42 moving to the left, the second slide bar 64 on the left applies a downward force to the left side of the mounting plate 42 through the elastic force, so that during the process of the mounting plate 42 moving to the left, the left end of the mounting plate 42 tilts downward, and the corresponding right end of the mounting plate 42 tilts upward, so that the wiping member 4 The left side of the wiping member 43 squeezes the inner wall of the rectangular duct 11 to a greater extent (increasing the friction between the wiping member 43 and the inner wall of the rectangular duct 11, thereby improving the cleaning effect of the wiping member 43), and the right side of the wiping member 43 is directly separated from the inner wall of the rectangular duct 11. In the process of further moving the cleaning mechanism to the left, the dust on the inner wall of the rectangular duct 11 is concentrated on the left side of the wiping member 43, and the right side of the wiping member 43 will not be polluted by the dust; when the equipment stops working, the cleaning mechanism moves rightward from the left mounting groove 41 to reset, and the trigger rod 65 on the right side first enters the lower end of the track bar 62 through the guide angle 66. Similarly, the right end of the mounting plate 42 tilts downward, and the corresponding right side of the wiping member 43 squeezes the inner wall of the rectangular duct 11, and the left side of the wiping member 43 is separated from the inner wall of the rectangular duct 11, so that when the clean right side of the wiping member 43 rubs against the inner wall of the rectangular duct 11, the left side of the wiping member 43 with dust will not contact the inner wall of the rectangular duct 11, and thus the inner wall of the rectangular duct 11 will not be polluted during the rightward reset of the cleaning mechanism.

[0041] The present invention tilts the mounting plate 42 through a tilting mechanism, thereby increasing the friction between the wiping member 43 and the inner wall of the rectangular pipe 11, thereby improving the cleaning effect of the wiping member 43; at the same time, the inclination of the mounting plate 42 is utilized to concentrate dust on the left side of the wiping member 43, so that the right side of the wiping member 43 will not be contaminated by dust, and further, the inner wall of the rectangular pipe 11 will not be contaminated during the rightward movement and resetting of the cleaning mechanism.

[0042] As a further solution of the present invention, a clamping plate 81 is fixedly connected to one end of the wiping member 43 close to the mounting plate 42, and the clamping plate 81 is detachably connected to the corresponding end face of the mounting plate 42. A material changing door 82 that can completely expose the mounting groove 41 is provided on the outer wall of the rectangular pipe 11.

[0043] During operation, when the wiping piece 43 in the equipment needs to be replaced, the material changing door 82 is opened to completely expose the wiping piece 43 in the mounting groove 41, and then the clamping plate 81 is removed from the end face of the mounting plate 42, so that the wiping piece 43 is separated from the equipment along with the clamping plate 81, and then a new clamping plate 81 with the wiping piece 43 is replaced and installed on the end face of the mounting plate 42, and finally the material changing door 82 is closed.

Claims

1. An air pollution forecasting device for environmental protection, comprising a rectangular duct (11), four detection devices (12), and a fan (13), wherein the four detection devices (12) are respectively embedded in four side walls of the rectangular duct (11), the fan (13) is fixedly connected to the right side inside the rectangular duct (11), and both ends of the rectangular duct (11) are fixedly connected to protective plates (14), characterized in that: It also includes a driving mechanism, the driving mechanism being laterally slidably connected to the inner wall of the rectangular pipe (11); the four inner walls of the rectangular pipe (11) are each provided with a cleaning mechanism, the cleaning mechanism being drivingly connected to the driving mechanism, the cleaning mechanism being used to clean the inner wall of the rectangular pipe (11) where the cleaning mechanism is located; The cleaning mechanism comprises two mounting grooves (41), both of which are formed on the inner wall of the rectangular pipe (11) and located on both sides of the detection device (12); a mounting plate (42) is provided in the mounting groove (41) on the right side; a wiping member (43) is provided on the side of the mounting plate (42) close to the bottom of the mounting groove (41); a pressure mechanism is provided on the side of the mounting plate (42) away from the bottom of the mounting groove (41); a chamfer (44) is provided on one side wall of the mounting groove (41) close to the detection device (12); the pressure mechanism is in transmission connection with a driving mechanism; the driving mechanism can drive the mounting plate (42) to move laterally through the pressure mechanism; the pressure mechanism can apply a squeezing force to the mounting plate (42) against the inner wall of the rectangular pipe (11); tilting mechanisms are provided at both ends of the mounting plate (42); the tilting mechanisms can tilt the mounting plate (42) when the mounting plate (42) moves laterally; The tilting mechanism comprises two avoidance grooves (61) arranged at the ends of the mounting plate (42), the avoidance grooves (61) being opened on the inner wall of the rectangular pipe (11), the avoidance grooves (61) being laterally fixedly connected with track bars (62), the ends of the track bars (62) being opened with guide angles (66), the left and right side walls at both ends of the mounting plate (42) being fixedly connected with mounting shells (63), the mounting shells (63) being elastically slidably connected with second slide bars (64), the side walls of the second slide bars (64) being fixedly connected with trigger bars (65), the trigger bars (65) being capable of being squeezed with the track bars (62); the ends of the mounting plates (42) being provided with control mechanisms, the control mechanisms being capable of controlling the second slide bars (64) on one side of the mounting plate (42) in a moving direction to move toward the bottom of the mounting groove (41), and the control mechanisms being capable of controlling the second slide bars (64) on the side of the mounting plate (42) away from the moving direction to move in a direction away from the bottom of the mounting groove (41).

2. The air pollution forecasting device according to claim 1, characterized in that: The driving mechanism comprises a slide groove (21), the slide groove (21) being formed on the inner wall of the rectangular pipe (11) and being located on the right side of the mounting plate (42), a rectangular frame (22) being slidably connected in the slide groove (21) in a transverse direction, two connecting rods (23) being fixedly connected to the four inner walls of the rectangular frame (22), the two connecting rods (23) being located on the same inner wall of the rectangular frame (22) being jointly connected in transmission with a pressure mechanism on the corresponding inner wall of the rectangular pipe (11), the rectangular frame (22) being connected in transmission with a transmission mechanism, the transmission mechanism being connected in transmission with a fan (13), the fan (13) being used to provide kinetic energy for the transmission mechanism; the transmission mechanism is capable of pushing the rectangular frame (22) to the left when the fan (13) is started, and of pulling the rectangular frame (22) back to its original position to the right from the rectangular pipe (11) when the fan (13) is stopped.

3. The air pollution forecasting device according to claim 2, characterized in that: The transmission mechanism comprises an oil tank (31), the left end of the oil tank (31) is fixedly connected to a connecting pipe (32), the left end of the connecting pipe (32) is fixedly connected to a hydraulic pipe (33), a piston (34) is elastically slidably connected in the hydraulic pipe (33), the left end of the piston (34) is fixedly connected to a push rod (35), and the left end of the push rod (35) is fixedly connected to the rectangular frame (22); an oil pump (36) is fixedly connected to the connecting pipe (32) in the oil tank (31), and the oil pump (36) is fixedly connected to the connecting pipe (32). The pump (36) is used to input the hydraulic oil in the oil tank (31) into the hydraulic pipe (33); the oil pump (36) is drivingly connected to an input shaft, the input shaft is used to drive the oil pump (36) to work, the input shaft penetrates the oil tank (31) and extends to the outside of the oil tank (31); the end of the input shaft located outside the oil tank (31) is fixedly connected to a transmission wheel (38), the transmission wheel (38) is drivingly connected to a transmission belt (39), and the transmission belt (39) is drivingly connected to a power shaft of the fan (13).

4. The air pollution forecasting device according to claim 3, characterized in that: The pressure mechanism comprises two L-shaped plates (51) respectively rotatably connected to the connecting rods (23); the L-shaped plates (51) are vertically slidably connected to a first sliding rod (52); the first sliding rod (52) is fixedly connected to the mounting plate (42); and a spring (53) is fixedly connected between the mounting plate (42) and the L-shaped plates (51).

5. The air pollution forecasting device according to claim 4, characterized in that: The control mechanism comprises a rope (71), the rope (71) passing through the mounting plate (42) transversely, and two ends of the rope (71) respectively extending into mounting shells (63) on the left and right sides of the mounting plate (42), the two mounting shells (63) on the left and right sides are both fixedly connected with support rods (72), and the portion of the rope (71) extending into the mounting shells (63) is wrapped around the support rod (72) and fixedly connected to the end of the second sliding rod (64).

6. An air pollution forecasting device for environmental protection according to claim 5, characterized in that: A clamping plate (81) is fixedly connected to one end of the wiping member (43) close to the mounting plate (42); the clamping plate (81) is detachably connected to the end surface of the corresponding mounting plate (42); and a material changing door (82) capable of completely exposing the mounting groove (41) is provided on the outer side wall of the rectangular pipe (11).

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