An ambient air monitoring device

Abstract

The present application relates to the technical field of monitoring device, disclose a kind of ambient air monitoring device, including support, the outer surface of one side near the top of the support is fixedly installed with collection barrel, the top of the collection barrel is fixedly installed with horn feed pipe, the outer surface of the other side near the top of the support is fixedly installed with compression cylinder.The present application is driven by link to make the compression plate move upward, so that the compression plate expels the air inside the compression cylinder, the air enters the inside of gas storage bottle through needle, when the air inside the compression cylinder is almost completely expelled, the needle will be pulled out from the inside of gas storage bottle, through the device, air can be automatically sampled when it rains, for monitoring the purification effect of rain on air, convenient for operator to use.

Description

Technical Field

[0001] This invention relates to the field of monitoring device technology, and in particular to an ambient air monitoring device. Background Technology

[0002] Air quality monitoring refers to the sampling and measurement of pollutants present in the air at fixed points, continuously, or at set intervals. To monitor air quality, several air monitoring stations are typically established in a city, equipped with automatic monitoring instruments for continuous automatic monitoring. The monitoring results are periodically retrieved, analyzed, and used to obtain relevant data. Air quality monitoring items mainly include sulfur dioxide, nitrogen monoxide, hydrocarbons, and particulate matter.

[0003] An existing air quality monitoring device (notification number: CN113514290A) has at least the following drawbacks:

[0004] When the above-mentioned patent is used, the sampling cylindrical shell is set on the column, and the cylindrical shell can also rotate on the column. This allows the sampling component set on the cylindrical shell to synchronously sample the airflow in the atmosphere as the cylindrical shell rotates. Since rainwater can adsorb dust, pollutants and gases in the air and carry them to the ground on rainy days, a process called "wet deposition", the above patent will cause rainwater to enter the inside of the pipe on rainy days, affecting the rotation of the cylindrical shell and the sampling of air samples by the airbag, making it inconvenient to monitor the air on rainy days. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ambient air monitoring device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An ambient air monitoring device includes a bracket. A collection bucket is fixedly mounted on the outer surface of the bracket near its top. A horn-shaped feed pipe is fixedly mounted on the top of the collection bucket. A compression cylinder is fixedly mounted on the outer surface of the bracket near its other side. A housing is fixedly mounted on the top of the bracket. A feeding roller is rotatably mounted between the inner walls of the housing. Multiple feeding grooves are equidistantly formed on the outer circumference of the feeding roller. Each of the multiple feeding grooves contains a gas storage cylinder. A storage pipe is fixedly mounted on the top of the housing and is connected to the interior of the housing. A mounting frame is fixedly mounted on one side of the outer surface of the housing. A square slide cylinder is slidably inserted into the outer surface of one side of the mounting frame. A needle is fixedly mounted on one end of the square slide cylinder near the gas storage cylinder, penetrating the outer surface of the mounting frame. A through hole is formed on the outer surface of the housing. An air pipe is fixedly connected to the other end of the square slide cylinder. The other end of the air pipe is fixedly connected to the top of the compression cylinder. The needle is connected to the interior of the compression cylinder through the air pipe and the square slide cylinder, and the needle penetrates the through hole.

[0008] As a further embodiment of the present invention, the outer surface of the bracket is provided with an opening, and a rotating shaft is rotatably installed on the inner walls of the opening on both sides. A rocker arm is fixedly installed on the outer surface of the rotating shaft. A piston plate is slidably installed on the inner wall of the collection bucket. A sliding rod is fixedly installed on the lower surface of the piston plate at the middle position. A guide post is fixedly installed at the bottom end of the sliding rod. A guide groove is provided on the outer surface of the rocker arm near the guide post. The guide post is slidably installed on the inner wall of the guide groove.

[0009] As a further embodiment of the present invention, an installation plate is fixedly installed on the inner wall of the collection bucket near the bottom, the bottom end of the slide rod passes through the installation plate and is slidably installed therewith, and two limiting rods are symmetrically rotated and installed on the lower surface of the installation plate.

[0010] As a further embodiment of the present invention, an annular limiting groove is formed on the outer circumferential surface of the slide rod near the bottom end, the bottom end of the limiting rod abuts against the inner wall of the annular limiting groove, and two tension springs are symmetrically fixedly installed on the lower surface of the mounting plate, with the bottom ends of the two tension springs respectively fixedly connected to the upper surfaces of the two limiting rods.

[0011] As a further embodiment of the present invention, a connecting rod is rotatably mounted on one end of the rocker arm near the compression cylinder, a compression plate is slidably mounted on the inner wall of the compression cylinder, the top end of the connecting rod is rotatably mounted on the lower surface of the compression plate, a one-way air intake valve is fixedly mounted on the upper surface of the compression cylinder, and a weight is fixedly mounted on the upper surface of the rocker arm near the compression cylinder.

[0012] As a further embodiment of the present invention, a first pulley is fixedly installed at one end of the rotating shaft near the mounting bracket, penetrating the outer surface of the bracket; a first one-way bearing is fixedly installed at one end of the feeding roller near the first pulley, penetrating the outer surface of the housing; a second pulley is fixedly installed on the outer circumferential surface of the first one-way bearing; and a belt is fitted onto the outer surfaces of the second pulley and the first pulley.

[0013] As a further embodiment of the present invention, a drive shaft is rotatably mounted on the outer surface of the housing near the mounting bracket, a second one-way bearing is fixedly mounted on the outer circumference of one end of the drive shaft, a second gear is fixedly mounted on the outer circumference of the second one-way bearing, and a first gear is fixedly mounted on the outer circumference of the second pulley, the first gear meshing with the second gear.

[0014] As a further embodiment of the present invention, a rotating wheel is fixedly installed on the outer circumference of the other end of the transmission shaft, and a driving groove is formed on the outer circumference of the rotating wheel. A driving column is fixedly installed on the outer surface of the square slide cylinder near the rotating wheel, and the driving column is slidably installed with the inner wall of the driving groove.

[0015] As a further embodiment of the present invention, a receiving groove is fixedly installed at the top of the bracket, and a discharge port is provided at the bottom of the outer shell, with the receiving groove located directly below the discharge port.

[0016] As a further embodiment of the present invention, the outer surface of the collection bucket near the bottom is provided with a water outlet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The rocker arm drives the compression plate upward through the connecting rod, causing the compression plate to expel the air inside the compression cylinder. The air enters the gas storage bottle through the needle. When the air inside the compression cylinder is almost completely expelled, the needle will be pulled out from the gas storage bottle. This device can automatically collect air samples during rain to monitor the purification effect of rain on the air and is easy for operators to use.

[0019] 2. The rocker arm tilts in the opposite direction, causing the rotating shaft to rotate in the opposite direction. The rotating shaft then drives the first pulley to rotate in the opposite direction, which in turn drives the second pulley to rotate in the opposite direction via a belt. Due to the presence of the first one-way bearing, the reverse rotation of the second pulley causes the inner ring of the first one-way bearing to rotate. The first one-way bearing then drives the feeding roller to rotate, which in turn causes the gas cylinder to move intermittently. Empty gas cylinders will enter the through hole for the next air sample collection. This device enables automatic replacement of gas cylinders. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an ambient air monitoring device proposed in this invention;

[0021] Figure 2 This is a rear view schematic diagram of an ambient air monitoring device proposed in this invention;

[0022] Figure 3 This is a schematic diagram of the collection bucket of an ambient air monitoring device proposed in this invention;

[0023] Figure 4 This is a schematic diagram of the outer casing of an ambient air monitoring device proposed in this invention;

[0024] Figure 5 This is a schematic diagram of the feeding roller of an ambient air monitoring device proposed in this invention;

[0025] Figure 6 This is a schematic diagram of a limiting rod for an ambient air monitoring device proposed in this invention;

[0026] Figure 7 This is a schematic diagram of an annular limiting groove for an ambient air monitoring device proposed in this invention;

[0027] Figure 8 for Figure 4 Enlarged view of a portion of point A in the middle;

[0028] Figure 9 This is a schematic diagram of the rotating wheel of an ambient air monitoring device proposed in this invention;

[0029] Figure 10 This is a schematic diagram showing the unfolded rotating wheel of an ambient air monitoring device proposed in this invention.

[0030] In the diagram: 1. Support; 2. Collection bucket; 3. Horn-shaped feed pipe; 4. Compression cylinder; 5. Rocker arm; 6. Weight; 7. Outer shell; 8. Storage pipe; 9. Receiving trough; 10. Feeding roller; 11. Gas cylinder; 12. Compression plate; 13. Connecting rod; 14. Air pipe; 15. One-way air inlet valve; 16. Slide rod; 17. Guide groove; 18. Guide column; 19. Piston plate; 20. Water outlet; 21. Mounting plate; 22. Limiting rod; 23. Tension spring; 24. Annular limiting groove; 25. First pulley; 26. Belt; 27. Second pulley; 28. First one-way bearing; 29. ​​First gear; 30. Second gear; 31. Mounting bracket; 32. Second one-way bearing; 33. Rotating wheel; 34. Drive groove; 35. Square slide cylinder; 36. Drive column; 37. Needle; 38. Through hole. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Reference Figures 1-10 An ambient air monitoring device includes a bracket 1. A collection bucket 2 is fixedly installed on the outer surface of the bracket 1 near the top. A horn-shaped feed pipe 3 is fixedly installed on the top of the collection bucket 2. A compression cylinder 4 is fixedly installed on the outer surface of the bracket 1 near the other side of the top. A housing 7 is fixedly installed on the top of the bracket 1. A feeding roller 10 is rotatably installed between the inner walls of the housing 7. Multiple feeding grooves are equidistantly opened on the outer circumference of the feeding roller 10. Each feeding groove contains a gas storage cylinder 11. A storage pipe 8 is fixedly installed on the top of the housing 7 and is connected to the interior of the housing 7. A mounting frame 31 is fixedly installed on one side of the outer surface of the housing 7. A square slide cylinder 35 is slidably inserted into one side of the outer surface of the mounting frame 31. The end of the square slide cylinder 35 near the gas storage cylinder 11 passes through the mounting frame 31. A needle 37 is fixedly installed on the outer surface of the housing 1. A through hole 38 is opened on the outer surface of the housing 7. An air tube 14 is fixedly connected to the other end of the square slide tube 35. The other end of the air tube 14 is fixedly connected to the top of the compression cylinder 4. The needle 37 is connected to the inside of the compression cylinder 4 through the air tube 14 and the square slide tube 35. The needle 37 passes through the through hole 38. An opening is opened through the outer surface of the bracket 1. A rotating shaft is rotatably installed on the inner walls of the opening on both sides. A rocker arm 5 is fixedly installed on the outer surface of the rotating shaft. A piston plate 19 is slidably installed on the inner wall of the collection bucket 2. A slide rod 16 is fixedly installed on the lower surface of the piston plate 19 at the middle position. A guide post 18 is fixedly installed at the bottom end of the slide rod 16. A guide groove 17 is opened on the outer surface of the rocker arm 5 near the guide post 18. The guide post 18 is slidably installed on the inner wall of the guide groove 17.

[0035] The weight of the rainwater causes the piston plate 19 to move downwards, which in turn moves the slide rod 16 downwards. The slide rod 16, through the guide groove 17 and the guide post 18, causes the rocker arm 5 to tilt upwards. The tilting motion of the rocker arm 5 causes the square slide cylinder 35 to move the needle 37 through the through hole 38 and insert it into the gas storage bottle 11. At the same time, the rocker arm 5, through the connecting rod 13, causes the compression plate 12 to move upwards, causing the compression plate 12 to expel the air from the compression cylinder 4. The air enters the gas storage bottle 11 through the needle 37. When the air inside the compression cylinder 4 is almost completely expelled, the needle 37 will be pulled out from the gas storage bottle 11. This device can automatically collect air samples during rain to monitor the air purification effect of rain and is easy for operators to use.

[0036] In this embodiment, an installation plate 21 is fixedly installed on the inner wall of the collection bucket 2 near the bottom. The bottom end of the slide rod 16 passes through the installation plate 21 and is slidably installed therewith. Two limiting rods 22 are symmetrically and rotatably installed on the lower surface of the installation plate 21. An annular limiting groove 24 is opened on the outer circumference of the slide rod 16 near the bottom. The bottom end of the limiting rod 22 abuts against the inner wall of the annular limiting groove 24. Two tension springs 23 are symmetrically and fixedly installed on the lower surface of the installation plate 21. The bottom ends of the two tension springs 23 are respectively fixedly connected to the upper surfaces of the two limiting rods 22.

[0037] By setting two limiting rods 22, under the force of the tension spring 23, the position of the slide rod 16 is restricted through the annular limiting groove 24, thereby restricting the position of the piston plate 19.

[0038] In this embodiment, a connecting rod 13 is rotatably installed at one end of the rocker arm 5 near the compression cylinder 4, a compression plate 12 is slidably installed on the inner wall of the compression cylinder 4, the top end of the connecting rod 13 is rotatably installed on the lower surface of the compression plate 12, a one-way air inlet valve 15 is fixedly installed on the upper surface of the compression cylinder 4, a weight 6 is fixedly installed on the upper surface of the rocker arm 5 near the compression cylinder 4, and a water outlet 20 is opened on the outer surface of the collection bucket 2 near the bottom.

[0039] When the piston plate 19 moves down to the position of the outlet 20, the water inside the collection bucket 2 will be immediately discharged. At this time, the rocker arm 5 will move in the opposite direction under the gravity of the weight block 6, and the slide rod 16 will be limited again by the limit rod 22. At this time, the piston plate 19 returns to the initial position.

[0040] In this embodiment, a first pulley 25 is fixedly installed at one end of the rotating shaft near the mounting frame 31, penetrating the outer surface of the bracket 1. A first one-way bearing 28 is fixedly installed at one end of the feeding roller 10 near the first pulley 25, penetrating the outer surface of the housing 7. A second pulley 27 is fixedly installed on the outer circumference of the first one-way bearing 28. A belt 26 is fitted onto the outer surfaces of the second pulley 27 and the first pulley 25. A drive shaft is rotatably installed on the outer surface of the housing 7 near the mounting frame 31. A second one-way bearing 32 is fixedly installed on the outer circumference of one end of the drive shaft. A second gear 30 is fixedly installed on the outer circumference of the second one-way bearing 32. A first gear 29 is fixedly installed on the outer circumference of the second pulley 27. The first gear 29 meshes with the second gear 30. A rotating wheel 33 is fixedly installed on the outer circumference of the other end of the drive shaft. A drive groove 34 is formed on the outer circumference of the rotating wheel 33. A drive column 36 is fixedly installed on the outer surface of the square slide cylinder 35 near the rotating wheel 33. The drive column 36 is slidably installed on the inner wall of the drive groove 34.

[0041] The movement of the rocker arm 5 drives the rotating shaft to rotate, which in turn drives the first pulley 25 to rotate. The first pulley 25 drives the second pulley 27 to rotate via the belt 26. The second pulley 27 drives the first gear 29 to rotate, which in turn drives the second one-way bearing 32 to rotate via the second gear 30. The one-way rotation of the second one-way bearing 32 drives the transmission shaft to rotate, which in turn drives the rotating wheel 33 to rotate. The rotating wheel 33 drives the square slide cylinder 35 to reciprocate intermittently via the drive groove 34 and the drive column 36. The square slide cylinder 35 drives the needle 37 to be inserted into the gas cylinder 11 through the through hole 38.

[0042] In this embodiment, a receiving groove 9 is fixedly installed at the top of the bracket 1, and a discharge port is provided at the bottom of the outer shell 7. The receiving groove 9 is located directly below the discharge port.

[0043] In this embodiment, the mouth of the gas storage bottle 11 is sealed with a rubber cap, and the air inside the gas storage bottle 11 is emptied beforehand. When the needle 37 passes through the rubber cap, the air inside the compression cylinder 4 can be squeezed into the gas storage bottle 11. When the needle 37 is pulled out, since the rubber cap is made of soft rubber, it can seal the air sample inside the gas storage bottle 11. Because the needle 37 is intermittently inserted and removed from the gas storage bottle 11, a small amount of air will leak during insertion and removal, which will not affect the final collection of sample air by the gas storage bottle 11.

[0044] It should be noted that, in use, the user fixes the device in a designated position using the bracket 1. When it rains, rainwater flows into the collection bucket 2 through the horn-shaped feed pipe 3. Since the collection bucket 2 is equipped with a piston plate 19, the rainwater is concentrated and stored inside the collection bucket 2. By setting two limiting rods 22, under the force of the tension spring 23, the position of the sliding rod 16 is restricted through the annular limiting groove 24, thereby restricting the position of the piston plate 19. As rainwater continuously enters the collection bucket 2, the weight of the rainwater exceeds the limiting weight limit of the tension spring 23, causing the bottom end of the limiting rod 22 to slide out from the inner wall of the annular limiting groove 24. The weight of the rainwater causes the piston plate 19 to move downward, which in turn causes the sliding rod 16 to move downward. The sliding rod 16 drives the rocker arm 5 to move upward through the guide groove 17 and the guide post 18. The movement of the rocker arm 5 drives the rotating shaft to rotate, which in turn drives the first pulley 25 to rotate. Wheel 25 drives the second pulley 27 to rotate via belt 26. The second pulley 27 drives the first gear 29 to rotate. The first gear 29 drives the second one-way bearing 32 to rotate via the second gear 30. The one-way rotation of the second one-way bearing 32 drives the transmission shaft to rotate. The transmission shaft drives the rotating wheel 33 to rotate. The rotating wheel 33 drives the square slide cylinder 35 to reciprocate intermittently via the drive groove 34 and drive column 36. The square slide cylinder 35 drives the needle 37 to be inserted into the gas storage bottle 11 through the through hole 38. At the same time, the rocker arm 5 drives the compression plate 12 to move upward via the connecting rod 13, so that the compression plate 12 discharges the air inside the compression cylinder 4. The air enters the gas storage bottle 11 through the needle 37. When the air inside the compression cylinder 4 is almost completely discharged, the needle 37 will be pulled out from the gas storage bottle 11. This device can automatically collect air samples during rain to monitor the purification effect of rain on the air and is easy for operators to use.

[0045] When the piston plate 19 moves down to the outlet 20, the water inside the collection bucket 2 is immediately discharged. At this time, the rocker arm 5 tilts upward under the weight of the counterweight 6, and the slide rod 16 is repositioned by the limiting rod 22. The piston plate 19 then returns to its initial position. The rocker arm 5 tilts upward, causing the rotating shaft to rotate in the opposite direction. The rotating shaft then causes the first pulley 25 to rotate in the opposite direction. The first pulley 25, through the belt 26, causes the second pulley 27 to rotate in the opposite direction. Due to the first one-way bearing 28, the reverse rotation of the second pulley 27 then... The inner ring of the first one-way bearing 28 rotates, which drives the feeding roller 10 to rotate. The feeding roller 10 drives the gas storage bottle 11 to move intermittently. The empty gas storage bottle 11 will enter the position of the through hole 38 for the next air sample collection. This device can realize automatic replacement of the gas storage bottle 11, which is convenient for operators. Before use, multiple gas storage bottles 11 only need to be placed into the inside of the storage tube 8 in sequence, and then the sealing plate on the storage tube 8 is covered. The gas storage bottles 11 will fall into the inside of the feeding trough in sequence by the rotation of the feeding roller 10.

[0046] The gas cylinder 11, which has collected the air sample, moves to the outlet and falls into the receiving trough 9. The user takes out the gas cylinder 11 to test the subsequent air sample and compares the data of the air sample before and after to determine the purification effect of rain on the air. Due to the unidirectional rotation of the second one-way bearing 32, the rotating wheel 33 will not rotate when the second pulley 27 rotates in the opposite direction.

[0047] Since the amount of rainfall collected by the collection bucket 2 is constant, the air sample collection speed is faster when the rainfall is heavy and faster when the rainfall is light. This allows for a comparison of the effects and differences in air purification under different rainfall amounts.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An ambient air monitoring device, comprising a support (1), characterized in that, A collection bucket (2) is fixedly installed on the outer surface of the support (1) near the top. A horn-shaped feed pipe (3) is fixedly installed on the top of the collection bucket (2). A compression cylinder (4) is fixedly installed on the outer surface of the support (1) near the other side of the top. A shell (7) is fixedly installed on the top of the support (1). A feeding roller (10) is rotatably installed between the inner walls of the shell (7). Multiple feeding grooves are equidistantly opened on the outer circumference of the feeding roller (10). A gas storage bottle (11) is installed inside each of the multiple feeding grooves. A storage pipe (8) is fixedly installed on the top of the shell (7). The storage pipe (8) is connected to the inside of the shell (7). A mounting bracket (31) is fixedly installed on one side of the outer surface of the shell (7). A square slide cylinder (35) is slidably inserted into the outer surface of one side of the mounting bracket (31). A needle (37) is fixedly installed at one end of the square slide cylinder (35) near the gas storage cylinder (11) through the outer surface of the mounting bracket (31). A through hole (38) is opened on the outer surface of the outer shell (7). An air pipe (14) is fixedly connected to the other end of the square slide cylinder (35). The other end of the air pipe (14) is fixedly connected to the top of the compression cylinder (4). The needle (37) is connected to the inside of the compression cylinder (4) through the air pipe (14) and the square slide cylinder (35). The needle (37) passes through the through hole (38). An opening is opened through the outer surface of the bracket (1). A rotating shaft is rotatably installed on the inner walls of the opening on both sides. A rocker arm (5) is fixedly installed on the outer surface of the rotating shaft. A piston plate (19) is slidably installed on the inner wall of the collection bucket (2). A slide rod (16) is fixedly installed on the lower surface of the piston plate (19) at the middle position. A guide post (18) is fixedly installed at the bottom end of the slide rod (16). A guide groove (17) is opened on the outer surface of the rocker arm (5) near the guide post (18). The guide post (18) is slidably installed on the inner wall of the guide groove (17). An installation plate (21) is fixedly installed on the inner wall of the collection bucket (2) near the bottom end. The bottom end of the slide rod (16) passes through the installation plate (21) and is slidably installed therewith. Two limiting rods (22) are symmetrically rotated on the lower surface of the installation plate (21). The outer circumference of the slide rod (16) near the bottom end... An annular limiting groove (24) is provided on the surface. The bottom end of the limiting rod (22) abuts against the inner wall of the annular limiting groove (24). Two tension springs (23) are symmetrically fixedly installed on the lower surface of the mounting plate (21). The bottom ends of the two tension springs (23) are respectively fixedly connected to the upper surfaces of the two limiting rods (22). A connecting rod (13) is rotatably installed on the end of the rocker arm (5) near the compression cylinder (4). A compression plate (12) is slidably installed on the inner wall of the compression cylinder (4). The top end of the connecting rod (13) is rotatably installed on the lower surface of the compression plate (12). A one-way air intake valve (15) is fixedly installed on the upper surface of the compression cylinder (4). A weight (6) is fixedly installed on the upper surface of the rocker arm (5) near the compression cylinder (4).

2. The ambient air monitoring device according to claim 1, characterized in that, The first pulley (25) is fixedly installed on the end of the rotating shaft near the mounting bracket (31) through the outer surface of the bracket (1). The first one-way bearing (28) is fixedly installed on the end of the feeding roller (10) near the first pulley (25) through the outer surface of the outer shell (7). The second pulley (27) is fixedly installed on the outer circumferential surface of the first one-way bearing (28). The second pulley (27) and the outer surface of the first pulley (25) are fitted with belts (26).

3. An ambient air monitoring device according to claim 2, characterized in that, A drive shaft is rotatably mounted on the outer surface of the housing (7) near the mounting bracket (31). A second one-way bearing (32) is fixedly mounted on the outer circumference of one end of the drive shaft. A second gear (30) is fixedly mounted on the outer circumference of the second one-way bearing (32). A first gear (29) is fixedly mounted on the outer circumference of the second pulley (27). The first gear (29) meshes with the second gear (30).

4. An ambient air monitoring device according to claim 3, characterized in that, A rotating wheel (33) is fixedly installed on the outer circumference of the other end of the drive shaft. A drive groove (34) is opened on the outer circumference of the rotating wheel (33). A drive column (36) is fixedly installed on the outer surface of the square slide cylinder (35) near the rotating wheel (33). The drive column (36) is slidably installed on the inner wall of the drive groove (34).

5. An ambient air monitoring device according to claim 1, characterized in that, The top of the bracket (1) is fixedly installed with a receiving groove (9), and the bottom of the outer shell (7) is provided with a discharge port. The receiving groove (9) is located directly below the discharge port.

6. An ambient air monitoring device according to claim 1, characterized in that, The collection bucket (2) has a water outlet (20) on its outer surface near the bottom.

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