Ambient air monitoring device

Abstract

The invention relates to the technical field of monitoring devices, and discloses an ambient air monitoring device which comprises a support, a collecting barrel is fixedly mounted on the outer surface of one side, close to the top end, of the support, a horn feeding pipe is fixedly mounted at the top end of the collecting barrel, and a compression cylinder is fixedly mounted on the outer surface of the other side, close to the top end, of the support. The tilting rod drives the compression plate to move upwards through the connecting rod, so that the compression plate exhausts air in the compression cylinder, the air enters the air storage bottle through the needle head, and when the air in the compression cylinder is about to be completely exhausted, the needle head is pulled out of the air storage bottle. The device is used for monitoring the purification effect of raining on air and is convenient for operators to use.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and in particular to an ambient air monitoring device. Background Art

[0002] Air monitoring refers to the sampling and measurement of pollutants in the air at fixed points, continuously or at regular intervals. In order to monitor the air, several air monitoring points are usually set up in a city, and automatic monitoring instruments are installed for continuous automatic monitoring. The monitoring results are sent back regularly to analyze and obtain relevant data. The main items of air monitoring include sulfur dioxide, nitrogen monoxide, hydrocarbons and floating dust.

[0003] An existing air environment monitoring device (Announcement No.: CN113514290A) has at least the following disadvantages: When the above patent is in use, the sampling cylindrical shell is set on the column, and the cylindrical shell can also rotate on the column, so that the sampling component set on the cylindrical shell can synchronously sample the airflow in the atmosphere when the cylindrical shell rotates. Since rainwater can adsorb dust, pollutants and gases in the air and bring them to the ground on rainy days, this process is called "wet deposition". In the above patent, rainwater will enter the interior of the pipe on rainy days, affecting the rotation of the cylindrical shell. At the same time, it will affect the sampling of air samples by the airbag, which is not convenient for monitoring the air on rainy days. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an ambient air monitoring device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An environmental air monitoring device comprises a bracket, wherein a collecting barrel is fixedly mounted on an outer surface of one side of the bracket near the top, a horn feeding pipe is fixedly mounted on the top of the collecting barrel, a compression cylinder is fixedly mounted on the outer surface of the bracket near the other side of the top, a shell is fixedly mounted on the top of the bracket, a feeding roller is rotatably mounted between the inner walls of the shell, a plurality of feeding grooves are equidistantly arranged on the circumferential outer surface of the feeding roller, a gas storage cylinder is arranged inside each of the plurality of feeding grooves, a storage tube is fixedly mounted on the top of the shell, the storage tube is connected with the interior of the shell, a mounting frame is fixedly mounted on the outer surface of one side of the shell, a square slide is slidably inserted on the outer surface of one side of the mounting frame, a needle is fixedly mounted on the outer surface of the square slide near the gas storage cylinder at one end thereof, a through hole is arranged on the outer surface of the shell, an air pipe is fixedly connected to the other end of the square slide, the other end of the air pipe is fixedly connected to the top of the compression cylinder, the needle is connected with the interior of the compression cylinder through the air pipe and the square slide, and the needle passes through the through hole.

[0006] As a further solution of the present invention, an opening is penetrated through the outer surface of the bracket, and a rotating shaft is rotatably installed on the inner walls on both sides of the opening, a tilting rod is fixedly installed on the outer surface of the rotating shaft, a piston plate is slidably installed on the inner wall of the collecting barrel, a sliding rod is fixedly installed on the lower surface of the middle position of the piston plate, a guide column is fixedly installed on the bottom end of the sliding rod, a guide groove is opened on the outer surface of the tilting rod near the guide column, and the guide column is slidably installed with the inner wall of the guide groove.

[0007] As a further solution of the present invention, a mounting plate is fixedly installed on the inner wall of the collection barrel near the bottom end, the bottom end of the slide rod passes through the mounting plate and is slidably installed therewith, and two limit rods are symmetrically rotatedly installed on the lower surface of the mounting plate.

[0008] As a further solution of the present invention, an annular limit groove is provided on the circumferential outer surface of the sliding rod near the bottom end, the bottom end of the limit rod is abutted against the inner wall of the annular limit groove, and two tension springs are symmetrically fixedly installed on the lower surface of the mounting plate, and the bottom ends of the two tension springs are respectively fixedly connected to the upper surfaces of the two limit rods.

[0009] As a further solution of the present invention, a connecting rod is rotatably installed on one end of the tilting rod close to the compression cylinder, a compression plate is slidably installed on the inner wall of the compression cylinder, the top end of the connecting rod is rotatably installed on the lower surface of the compression plate, a one-way air intake valve is fixedly installed on the upper surface of the compression cylinder, and a weight block is fixedly installed on the upper surface of the tilting rod close to one end of the compression cylinder.

[0010] As a further solution of the present invention, one end of the rotating shaft close to the mounting frame passes through the outer surface of the bracket and is fixedly installed with a first pulley, one end of the feeding roller close to the first pulley passes through the outer surface of the outer shell and is fixedly installed with a first one-way bearing, a second pulley is fixedly installed on the circumferential outer surface of the first one-way bearing, and the outer surfaces of the second pulley and the first pulley are sleeved with belts.

[0011] As a further solution of the present invention, a transmission shaft is rotatably mounted on the outer surface of the outer shell close to the mounting frame, a second one-way bearing is fixedly mounted on the circumferential outer surface of one end of the transmission shaft, a second gear is fixedly mounted on the circumferential outer surface of the second one-way bearing, a first gear is fixedly mounted on the circumferential outer surface of the second pulley, and the first gear is meshed with the second gear.

[0012] As a further solution of the present invention, a rotating wheel is fixedly installed on the circumferential outer surface of the other end of the transmission shaft, a driving groove is opened on the circumferential outer surface of the rotating wheel, and a driving column is fixedly installed on the outer surface of the square slide cylinder close to the rotating wheel, and the driving column is slidably installed on the inner wall of the driving groove.

[0013] As a further solution of the present invention, a material receiving trough is fixedly installed on the top end of the bracket, a material discharge port is arranged at the bottom end of the shell, and the material receiving trough is arranged directly below the material discharge port.

[0014] As a further solution of the present invention, a water outlet is provided on the outer surface of the collection bucket near the bottom.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The tilting rod drives the compression plate to move upward through the connecting rod, so that the compression plate discharges the air inside the compression cylinder, and the air enters the gas storage cylinder through the needle. When the air inside the compression cylinder is almost completely discharged, the needle will be pulled out from the gas storage cylinder. Through this device, the air can be automatically sampled when it rains, which is used to monitor the purification effect of rain on the air, and is convenient for operators to use; 2. The reverse tilting movement of the tilting rod drives the rotating shaft to rotate in the reverse direction, and the rotating shaft drives the first pulley to rotate in the reverse direction. The first pulley drives the second pulley to rotate in the reverse direction through the belt. Due to the setting of the first one-way bearing, at this time, the reverse rotation of the second pulley drives the inner ring of the first one-way bearing to rotate, and the first one-way bearing drives the feeding roller to rotate. The feeding roller drives the gas storage bottle to move intermittently, and the empty gas storage bottle will enter the position of the through hole for the next air sample collection. The automatic replacement of the gas storage bottle can be realized through this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an ambient air monitoring device proposed by the present invention; Figure 2 A rear view schematic diagram of the ambient air monitoring device proposed by the present invention; Figure 3 A schematic diagram of a collection barrel of an ambient air monitoring device proposed by the present invention; Figure 4 A schematic diagram of a housing of an ambient air monitoring device proposed by the present invention; Figure 5 A schematic diagram of a feed roller of an ambient air monitoring device proposed by the present invention; Figure 6 A schematic diagram of a limit rod of an ambient air monitoring device proposed by the present invention; Figure 7 A schematic diagram of an annular limiting groove of an ambient air monitoring device proposed by the present invention; Figure 8 for Figure 4 A partial enlarged schematic diagram in the middle; Fig. 9 A schematic diagram of a rotating wheel of an ambient air monitoring device proposed by the present invention; Fig.10This is a schematic diagram of the unfolding of the rotating wheel of an ambient air monitoring device proposed by the present invention.

[0017] In the figure: 1. bracket; 2. collecting barrel; 3. trumpet feed pipe; 4. compression cylinder; 5. tilting rod; 6. weight block; 7. shell; 8. storage tube; 9. receiving trough; 10. feeding roller; 11. gas storage bottle; 12. compression plate; 13. connecting rod; 14. air pipe; 15. one-way air inlet valve; 16. sliding 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 frame; 32. second one-way bearing; 33. rotating wheel; 34. driving groove; 35. square sliding cylinder; 36. driving column; 37. needle; 38. through hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Reference Figure 1-Figure 10, an environmental air monitoring device comprises a bracket 1, a collecting barrel 2 is fixedly mounted on the outer surface of the bracket 1 near the top side, a horn feeding pipe 3 is fixedly mounted on the top of the collecting barrel 2, a compression cylinder 4 is fixedly mounted on the outer surface of the bracket 1 near the other side of the top, a shell 7 is fixedly mounted on the top of the bracket 1, a feeding roller 10 is rotatably mounted between the inner walls of the shell 7, a plurality of feeding grooves are equidistantly arranged on the circumferential outer surface of the feeding roller 10, a gas storage bottle 11 is arranged inside each of the plurality of feeding grooves, a storage pipe 8 is fixedly mounted on the top of the shell 7, the storage pipe 8 is connected to the inside of the shell 7, a mounting frame 31 is fixedly mounted on the outer surface of one side of the shell 7, a square slide cylinder 35 is slidably inserted on the outer surface of one side of the mounting frame 31, and one end of the square slide cylinder 35 near the gas storage bottle 11 passes through the mounting frame 3 1 is fixedly mounted with a needle 37, a through hole 38 is provided on the outer surface of the shell 7, the other end of the square slide 35 is fixedly connected with the trachea 14, the other end of the trachea 14 is fixedly connected to the top of the compression cylinder 4, the needle 37 is communicated with the inside of the compression cylinder 4 through the trachea 14 and the square slide 35, the needle 37 passes through the through hole 38, an opening is penetrated through the outer surface of the bracket 1, a rotating shaft is rotatably installed on the inner walls on both sides of the opening, a tilting rod 5 is fixedly mounted on the outer surface of the rotating shaft, a piston plate 19 is slidably mounted on the inner wall of the collecting barrel 2, a sliding rod 16 is fixedly mounted on the lower surface of the middle position of the piston plate 19, a guide column 18 is fixedly mounted on the bottom end of the sliding rod 16, a guide groove 17 is provided on the outer surface of the tilting rod 5 close to the guide column 18, and the guide column 18 is slidably mounted on the inner wall of the guide groove 17.

[0022] The weight of rainwater causes the piston plate 19 to move downward, and the piston plate 19 drives the slide bar 16 to move downward. The slide bar 16 drives the tilting rod 5 to tilt up through the guide groove 17 and the guide column 18. The tilting movement of the tilting rod 5 causes the square slide cylinder 35 to drive the needle 37 to pass through the through hole 38 and insert into the interior of the gas cylinder 11. At the same time, the tilting rod 5 drives the compression plate 12 to move upward through the connecting rod 13, so that the compression plate 12 discharges the air inside the compression cylinder 4, and the air enters the interior of the gas cylinder 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 interior of the gas cylinder 11. The device can automatically collect air samples when it rains to monitor the purification effect of rain on the air, which is convenient for operators to use.

[0023] In this embodiment, a mounting plate 21 is fixedly installed on the inner wall of the collecting barrel 2 near the bottom end, the bottom end of the sliding rod 16 passes through the mounting plate 21 and is slidably installed therewith, two limit rods 22 are symmetrically and rotatably installed on the lower surface of the mounting plate 21, and an annular limit groove 24 is provided on the circumferential outer surface of the sliding rod 16 near the bottom end, and the bottom end of the limit rod 22 is abutted against the inner wall of the annular limit groove 24, and two tension springs 23 are symmetrically and fixedly installed on the lower surface of the mounting plate 21, and the bottom ends of the two tension springs 23 are respectively fixedly connected to the upper surfaces of the two limit rods 22.

[0024] By providing two limiting rods 22 , under the action of the tension spring 23 , the position of the slide rod 16 is limited through the annular limiting groove 24 , thereby limiting the position of the piston plate 19 .

[0025] In this embodiment, a connecting rod 13 is rotatably installed on one end of the lifting rod 5 close to 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 block 6 is fixedly installed on the upper surface of the lifting rod 5 close to one end of the compression cylinder 4, and a water outlet 20 is provided on the outer surface of the collecting barrel 2 close to the bottom.

[0026] When the piston plate 19 moves down to the position of the water outlet 20, the water inside the collection barrel 2 will be immediately discharged. At this time, the tilting rod 5 will move in the opposite direction under the gravity of the weight block 6, and the sliding rod 16 will be limited by the limiting rod 22 again. At this time, the piston plate 19 returns to the initial position.

[0027] In this embodiment, one end of the rotating shaft near the mounting frame 31 passes through the outer surface of the bracket 1 and is fixedly installed with a first pulley 25, and one end of the feeding roller 10 near the first pulley 25 passes through the outer surface of the shell 7 and is fixedly installed with a first one-way bearing 28, and the circumferential outer surface of the first one-way bearing 28 is fixedly installed with a second pulley 27, and the outer surfaces of the second pulley 27 and the first pulley 25 are sleeved with a belt 26, and a transmission shaft is rotatably installed on the outer surface of the shell 7 near the mounting frame 31, and a second one-way bearing 32 is fixedly installed on the circumferential outer surface of one end of the transmission shaft, and a second gear 30 is fixedly installed on the circumferential outer surface of the second one-way bearing 32, and a first gear 29 is fixedly installed on the circumferential outer surface of the second pulley 27, and the first gear 29 is meshed with the second gear 30, and a rotating wheel 33 is fixedly installed on the circumferential outer surface of the other end of the transmission shaft, and a driving groove 34 is opened on the circumferential outer surface of the rotating wheel 33, and a driving column 36 is fixedly installed on the outer surface of the square slide 35 near the rotating wheel 33, and the driving column 36 is slidably installed with the inner wall of the driving groove 34.

[0028] The movement of the tilting lever 5 drives the rotating shaft to rotate, and the rotating shaft drives the first pulley 25 to rotate. The first pulley 25 drives the second pulley 27 to rotate through the 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 through the second gear 30. Since the one-way rotation of the second one-way bearing 32 will drive the transmission shaft to rotate, the transmission shaft drives the rotating wheel 33 to rotate. The rotating wheel 33 drives the square slide 35 to intermittently reciprocate through the driving groove 34 and the driving column 36. The square slide 35 drives the needle 37 to be inserted into the interior of the gas storage cylinder 11 through the through hole 38.

[0029] In this embodiment, a material receiving trough 9 is fixedly mounted on the top of the bracket 1, a material discharge port is arranged at the bottom of the housing 7, and the material receiving trough 9 is arranged just below the material discharge port.

[0030] In this embodiment, the mouth of the gas cylinder 11 is sealed with a rubber cover, and the air inside the gas cylinder 11 is emptied in advance. When the needle 37 passes through the rubber cover, the air inside the compression cylinder 4 can be squeezed into the interior of the gas cylinder 11. When the needle 37 is pulled out, since the rubber cover is made of soft rubber, the air sample inside the gas cylinder 11 can be sealed. Because the needle 37 is intermittently inserted and pulled out of the gas cylinder 11, a small amount of air will leak during the insertion and removal, which will not affect the final collection of sample air by the gas cylinder 11.

[0031] It should be noted that when the present invention is in use, the user fixes the device in a designated position through the bracket 1. When it rains, rainwater flows into the interior of the collecting barrel 2 through the horn feeding pipe 3. Since the collecting barrel 2 is provided with a piston plate 19, the rainwater will be concentrated and stored in the collecting barrel 2. By providing two limit rods 22, the position of the slide rod 16 is limited by the annular limit groove 24 under the action of the tension spring 23, and then the position of the piston plate 19 is limited. As a result, rainwater continuously enters the collecting barrel 2. At this time, the weight of the rainwater exceeds the limit weight limit of the tension spring 23, so that the bottom end of the limit rod 22 slides out from the inner wall of the annular limit groove 24. The weight of the rainwater causes the piston plate 19 to move downward, and the piston plate 19 drives the slide rod 16 to move downward. The slide rod 16 drives the tilting rod 5 to tilt up through the guide groove 17 and the guide column 18. The movement of the tilting rod 5 drives the rotating shaft to rotate, and the rotating shaft drives the first pulley 25 to rotate. The wheel 25 drives the second pulley 27 to rotate through the belt 26, and the second pulley 27 drives the first gear 29 to rotate. The first gear 29 drives the second one-way bearing 32 to rotate through the second gear 30. Since the one-way rotation of the second one-way bearing 32 is away from the transmission shaft, the transmission shaft drives the rotating wheel 33 to rotate. The rotating wheel 33 drives the square slide 35 to intermittently reciprocate through the driving groove 34 and the driving column 36. The square slide 35 drives the needle 37 to pass through the through hole 38 and insert it into the interior of the gas storage bottle 11. At the same time, the tilting rod 5 drives the compression plate 12 to move upward through the connecting rod 13, so that the compression plate 12 discharges the air inside the compression cylinder 4, and the air enters the interior of the gas storage bottle 11 through the needle 37. When the air inside the compression cylinder 4 is about to be completely discharged, the needle 37 will be pulled out from the interior of the gas storage bottle 11. Through this device, automatic air sample collection can be performed when it rains, which is used to monitor the purification effect of rain on the air, which is convenient for operators to use; When the piston plate 19 moves down to the position of the water outlet 20, the water inside the collection barrel 2 will be immediately discharged. At this time, the tilting rod 5 will tilt in the opposite direction under the gravity of the weight block 6, and the slide bar 16 will be limited by the limit rod 22 again. At this time, the piston plate 19 returns to the initial position, and the reverse tilting movement of the tilting rod 5 drives the rotating shaft to rotate in the opposite direction, and the rotating shaft drives the first pulley 25 to rotate in the opposite direction. The first pulley 25 drives the second pulley 27 to rotate in the opposite direction through the belt 26. Due to the setting of the first one-way bearing 28, at this time, the reverse rotation of the second pulley 27 drives The inner ring of the first one-way bearing 28 rotates, the first one-way bearing 28 drives the feeding roller 10 to rotate, and the feeding roller 10 drives the gas storage bottle 11 to intermittently move, and the empty gas storage bottle 11 will enter the position of the through hole 38 to collect the next air sample. The device can realize automatic replacement of the gas storage bottle 11, which is convenient for users to operate. Before use, you only need to put multiple gas storage bottles 11 into the storage tube 8 in turn, and then cover the sealing plate on the storage tube 8. The gas storage bottles 11 will fall into the inside of the feeding trough in turn through the rotation of the feeding roller 10; The gas cylinder 11 that has collected the air sample moves to the position of the discharge port and falls into the receiving trough 9 from the discharge port. The user takes out the gas cylinder 11 for subsequent air sample detection and compares the data of the air samples before and after to determine the air purification effect of rain. 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. In this device, since the amount of rainfall collected by the collection barrel 2 is certain, the speed of collecting air samples is fast when the rainfall is heavy, and the speed of collecting air samples is fast when the rainfall is light, so the effects and differences of air purification under different rainfall amounts can be compared.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ambient air monitoring device, comprising a bracket (1), characterized in that: A collecting bucket (2) is fixedly mounted on the outer surface of one side of the bracket (1) near the top, a trumpet feed pipe (3) is fixedly mounted on the top of the collecting bucket (2), a compression cylinder (4) is fixedly mounted on the outer surface of the other side of the bracket (1) near the top, a shell (7) is fixedly mounted on the top of the bracket (1), a feeding roller (10) is rotatably mounted between the inner walls of the shell (7), a plurality of feeding grooves are equidistantly formed on the circumferential outer surface of the feeding roller (10), a gas storage bottle (11) is arranged inside each of the plurality of feeding grooves, a storage pipe (8) is fixedly mounted on the top of the shell (7), the storage pipe (8) is connected to the inside of the shell (7), and the shell (7) A mounting frame (31) is fixedly mounted on the outer surface of one side of the housing (7), a square slide cylinder (35) is slidably inserted into the outer surface of one side of the mounting frame (31), one end of the square slide cylinder (35) close to the gas cylinder (11) passes through the outer surface of the mounting frame (31) and is fixedly mounted with a needle (37), a through hole (38) is opened on the outer surface of the housing (7), the other end of the square slide cylinder (35) is fixedly connected to the air pipe (14), 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), and the needle (37) passes through the through hole (38).

2. An ambient air monitoring device according to claim 1, characterized in that: An opening is formed through the outer surface of the bracket (1), and a rotating shaft is rotatably mounted on the inner walls on both sides of the opening. A tilting rod (5) is fixedly mounted on the outer surface of the rotating shaft. A piston plate (19) is slidably mounted on the inner wall of the collecting barrel (2), a sliding rod (16) is fixedly mounted on the lower surface of the middle position of the piston plate (19), and a guide column (18) is fixedly mounted on the bottom end of the sliding rod (16). A guide groove (17) is formed on the outer surface of the tilting rod (5) near the guide column (18), and the guide column (18) is slidably mounted on the inner wall of the guide groove (17).

3. An ambient air monitoring device according to claim 2, characterized in that: A mounting plate (21) is fixedly mounted on the inner wall of the collection barrel (2) near the bottom end, the bottom end of the slide rod (16) passes through the mounting plate (21) and is slidably mounted thereon, and two limit rods (22) are symmetrically mounted on the lower surface of the mounting plate (21).

4. The ambient air monitoring device according to claim 3, characterized in that: An annular limiting groove (24) is provided on the circumferential outer surface of the slide rod (16) near the bottom end, the bottom end of the limiting rod (22) abuts against the inner wall of the annular limiting groove (24), and two tension springs (23) are symmetrically fixedly mounted on the lower surface of the mounting plate (21), and the bottom ends of the two tension springs (23) are respectively fixedly connected to the upper surfaces of the two limiting rods (22).

5. The ambient air monitoring device according to claim 2, characterized in that: A connecting rod (13) is rotatably mounted on one end of the tilting rod (5) close to the compression cylinder (4); a compression plate (12) is slidably mounted on the inner wall of the compression cylinder (4); the top end of the connecting rod (13) is rotatably mounted on the lower surface of the compression plate (12); a one-way air intake valve (15) is fixedly mounted on the upper surface of the compression cylinder (4); and a weight block (6) is fixedly mounted on the upper surface of one end of the tilting rod (5) close to the compression cylinder (4).

6. The ambient air monitoring device according to claim 2, characterized in that: One end of the rotating shaft close to the mounting frame (31) passes through the outer surface of the bracket (1) and is fixedly mounted with a first pulley (25); one end of the feeding roller (10) close to the first pulley (25) passes through the outer surface of the housing (7) and is fixedly mounted with a first one-way bearing (28); a second pulley (27) is fixedly mounted on the circumferential outer surface of the first one-way bearing (28); and a belt (26) is sleeved on the outer surfaces of the second pulley (27) and the first pulley (25).

7. An ambient air monitoring device according to claim 6, characterized in that: A transmission shaft is rotatably mounted on the outer surface of the housing (7) close to the mounting frame (31); a second one-way bearing (32) is fixedly mounted on the circumferential outer surface of one end of the transmission shaft; a second gear (30) is fixedly mounted on the circumferential outer surface of the second one-way bearing (32); a first gear (29) is fixedly mounted on the circumferential outer surface of the second pulley (27); the first gear (29) is meshed with the second gear (30).

8. An ambient air monitoring device according to claim 7, characterized in that: A rotating wheel (33) is fixedly mounted on the circumferential outer surface of the other end of the transmission shaft, a driving groove (34) is provided on the circumferential outer surface of the rotating wheel (33), and a driving column (36) is fixedly mounted on the outer surface of the square slide cylinder (35) on a side close to the rotating wheel (33), and the driving column (36) is slidably mounted on the inner wall of the driving groove (34).

9. The ambient air monitoring device according to claim 1, characterized in that: A material receiving trough (9) is fixedly mounted on the top end of the bracket (1), a material discharge port is provided at the bottom end of the housing (7), and the material receiving trough (9) is arranged directly below the material discharge port.

10. The ambient air monitoring device according to claim 1, characterized in that: A water outlet (20) is provided on the outer surface of the collection bucket (2) near the bottom end.

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