Intelligent atmospheric particulate real-time monitoring device

Abstract

The embodiment of the invention provides an intelligent real-time monitoring device for atmospheric particulates, and relates to the field of atmospheric monitoring. Comprising a shell, a connecting cylinder and a detector, one end of the connecting cylinder is installed on the shell, the detector is installed at the other end of the connecting cylinder, and the gas detector is characterized by further comprising a cylinder body; the plurality of barrels are respectively arranged in the shell at equal intervals along the circumferential direction; a limiting column is mounted on the cylinder body; the device further comprises an inspection mechanism. The inspection mechanism is installed in the shell, and the inspection mechanism is controlled to drive the multiple barrel bodies to sequentially enter and leave the connecting barrel at equal intervals; and the inspection mechanism comprises a first fixing group, a second fixing group, a connecting frame, a propelling groove, a rotary drum and a limiting groove. The equipment can ensure that the environment detected by the detector is relatively stable, can ensure that the gas to be detected is continuously replaced, ensures the accuracy of obtained data, and can ensure that the gas in the detected cylinder and the gas in the external environment flow and are replaced.

Description

Technical Field

[0001] This invention relates to the field of atmospheric monitoring, specifically to an intelligent real-time monitoring device for atmospheric particulate matter. Background Technology

[0002] With the advancement of science and technology and the development of society, people have begun to pay attention to environmental pollution and are increasingly concerned about improving their living environment. Monitoring of particulate matter in the atmosphere is receiving increasing attention. Currently, environmental monitoring departments publish environmental monitoring indicators that include two categories of particulate matter: PM10 and PM2.5. Particulate matter with a diameter of less than 10 micrometers is generally referred to as PM10. It typically settles in the upper respiratory tract, and the concentration and exposure time of the particulate matter determine the amount inhaled and the degree of harm to the body. Particulate matter with a diameter of less than 2.5 micrometers is referred to as PM2.5. The smaller the diameter of the particulate matter, the deeper it penetrates into the respiratory tract. Particles smaller than 2 micrometers can penetrate 100% into the bronchioles and alveoli, affecting cardiopulmonary function and even leading to cardiovascular, cerebrovascular, and nervous system diseases. Atmospheric particulate matter is a general term for solid or liquid particulate matter dispersed in the atmosphere. Atmospheric particulate matter with a diameter of 0.01 μm to 100 μm is collectively referred to as total suspended particulate matter (TSP). PM10 and PM2.5 refer to atmospheric particulate matter with an aerodynamic diameter less than or equal to 10 μm and 2.5 μm, respectively. PM10, also known as inhalable particulate matter, refers to particulate matter that can enter the chest; PM2.5 can enter the alveoli of the lungs and is called respirable particulate matter. PM10 persists in the ambient air for a long time and has a significant impact on human health and atmospheric visibility. After being inhaled, it accumulates in the respiratory system and can cause many diseases.

[0003] Using a professional dust detector to detect inhalable particulate matter in the atmosphere is a common detection method. However, since the detection needs to be carried out for a long time, the instability of air velocity will affect the stability and accuracy of the detector in detecting atmospheric particulate matter. Furthermore, existing equipment cannot guarantee that the detector probe is in a relatively stable environment, so the monitoring data is prone to deviation.

[0004] Based on this, the present invention is proposed. Summary of the Invention

[0005] According to embodiments of the present invention, an intelligent real-time monitoring device for atmospheric particulate matter is provided to address the problems existing in the prior art.

[0006] In a first aspect of the present invention, an intelligent real-time monitoring device for atmospheric particulate matter is provided.

[0007] The intelligent real-time atmospheric particulate matter monitoring device includes: a shell, a connecting cylinder, and a detector; one end of the connecting cylinder is installed on the shell, and the detector is installed on the other end of the connecting cylinder. The device is characterized by further including: a cylindrical body; several cylindrical bodies are installed equidistantly within the shell along the circumference; limit posts are installed on the cylindrical bodies. It also includes: a delivery mechanism; the delivery mechanism is installed inside the housing, and the delivery mechanism is controlled to drive several cylinders to enter and leave the connecting cylinder in sequence at equal intervals; The inspection delivery mechanism includes: a first fixing group, a second fixing group, a connecting frame, a propulsion groove, a rotating drum, and a limiting groove; The first and second fixing groups are symmetrically installed inside the outer casing; the two ends of the connecting frame are respectively connected to the first and second fixing groups; a propulsion groove is formed between the first and second fixing groups; the rotating drum is rotatably installed outside the first and second fixing groups; several limiting grooves are equidistantly opened on the rotating drum along the circumference, and the limiting grooves are parallel to the axis of the rotating drum; the limiting post slides through the propulsion groove and the limiting groove; the controlled rotation of the rotating drum can drive each limiting post and the drum body to move circumferentially relative to the outer casing and reciprocate axially.

[0008] Preferably, the outer walls of the first fixing group and the second fixing group on opposite sides are respectively provided with grooves; the two ends of the rotating cylinder are respectively provided with protrusions, and the protrusions are slidably installed in the grooves.

[0009] Preferably, it further includes: teeth, a first gear, and a motor; there are a plurality of teeth, which are equidistantly installed on the outer wall of the rotating drum along the circumference; the first gear is rotatably installed in the housing, and the first gear is meshed with the teeth; the motor is installed in the housing, and the output end of the motor is connected to the first gear.

[0010] Preferably, the outer wall of the cylinder has a plurality of air holes.

[0011] Preferably, the propulsion groove includes: a rotating groove, an extending groove, and a retracting groove; the rotating groove is opened circumferentially; the extending groove and the retracting groove are connected, and the connection is protruding relative to the rotating groove in the direction of the second fixed group, and the extending groove and the retracting groove are connected to the rotating groove.

[0012] Preferably, the connecting cylinder corresponds to the connection point of the extension groove and the retraction groove, and the connecting cylinder is arranged in a contracted shape towards the detector.

[0013] Preferably, a first mounting bracket and a second mounting bracket are respectively installed at both ends of the outer casing; a roller is installed between the first mounting bracket and the second mounting bracket, and the roller is coaxially arranged with the outer casing; a plurality of balls are installed in a circumferential array on the outer wall of the roller.

[0014] Preferably, the second mounting bracket is rotatably connected to the idler roller; The outer wall of the idler roller is provided with a through groove; a flow mechanism is installed inside the idler roller; the flow mechanism is controlled to cause airflow to pass through the through groove and blow towards the cylinder opposite it; The flow mechanism includes: a frame, a fixed cylinder, a driving groove, a telescopic seat, a pushing column, a rotating column, a leather pad, a fixed seat, a limiting block, and a limiting groove; The frame is installed at the end of the idler roller away from the second mounting bracket; the fixed cylinder is installed on the second mounting bracket; the driving groove is formed on the inner wall of the fixed cylinder; the telescopic seat is slidably installed in the fixed cylinder; the pushing column is installed on the telescopic seat and slidably installed in the driving groove; one end of the rotating column is connected to the telescopic seat; there are several pads, which are equidistantly installed on the rotating column, and the diameter of the pads is adapted to the inner diameter of the idler roller; the fixed seat is installed on the frame; the limiting block is installed at the other end of the rotating column; the limiting groove is formed on the fixed seat and the limiting block is slidably installed in the limiting groove.

[0015] Preferably, the driving groove includes a forward groove, a reset groove, and a stop groove, and the three are connected in sequence.

[0016] Preferably, the second mounting bracket is provided with a gear ring; one end of a rotating shaft is mounted on the other output end of the motor, and a second gear is mounted on the other end of the rotating shaft, and the second gear is meshed with the gear ring.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The present invention provides an intelligent real-time atmospheric particulate matter monitoring device. By using the propulsion groove and the limiting groove to limit the limiting column, it can ensure that the cylinder moves in a circular motion when the rotating drum rotates and can move into the connecting cylinder at a fixed position, thereby realizing docking with the detector, ensuring that the detector detection environment is relatively stable, and ensuring continuous replacement of the cylinder to be detected, ensuring gas replacement, and ensuring the accuracy of the obtained data.

[0018] 2. The second mounting bracket in this invention can drive the fixed cylinder to rotate synchronously. By using the driving groove to limit the push column, it ensures that the rotating column rotates while reciprocating along its axial direction, thereby ensuring the rotation and reciprocating movement of the pad. By using the fanning motion of the pad, the airflow in the corresponding position of the cylinder is quickly exchanged, thereby ensuring that the gas in each tested cylinder is effectively exchanged with the gas in the external environment, ensuring the accuracy of the monitoring data.

[0019] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of the structure of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown; Figure 2 An exploded structural diagram of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown. Figure 3 An enlarged view of point A of the intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown; Figure 4 An exploded structural diagram of the testing mechanism of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the deployment structure of the propulsion tank of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown. Figure 6 An exploded structural diagram of the flow mechanism of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown. Figure 7 An enlarged view of section B of the intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the unfolded structure of the drive trough of an intelligent real-time atmospheric particulate matter monitoring device according to an embodiment of the present invention is shown.

[0021] The attached figures are labeled as follows: 1. Outer shell; 2. Connecting cylinder; 3. Detector; 4. First fixing group; 5. Second fixing group; 6. Connecting frame; 7. Propulsion groove; 701. Rotating groove; 702. Extending groove; 703. Retracting groove; 8. Rotating cylinder; 9. Groove; 10. Protrusion; 11. Limiting groove; 12. Cylinder body; 1201. Air hole; 13. Limiting post; 14. Tooth; 15. First gear; 16. Motor; 17. Idler roller; 18. 19. Ball bearing; 20. First mounting bracket; 21. Second mounting bracket; 22. Through groove; 23. Rotating shaft; 24. Second gear; 25. Gear ring; 26. Frame; 27. Fixed cylinder; 28. Drive groove; 2701. Forward groove; 2702. Reset groove; 2703. Stop groove; 28. Telescopic seat; 29. ​​Push column; 30. Rotating column; 31. Pad; 32. Fixed seat; 33. Limiting block; 34. Limiting groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] like Figure 1 and Figure 2 As shown, the intelligent real-time atmospheric particulate matter monitoring device includes: a shell 1, a connecting cylinder 2, a detector 3, a cylinder 12, and a sample delivery mechanism. One end of the connecting cylinder 2 is mounted on the shell 1, and the detector 3 is mounted on the other end of the connecting cylinder 2. In this embodiment, the detector 3 is an existing device, specifically a QD6330-F dust detector, capable of detecting the concentration of particulate matter in the air. Several cylinders 12 are equidistantly mounted within the shell 1 along the circumference. Each cylinder 12 is a cylindrical structure open at both ends, and its outer wall has several air holes 1201 to facilitate air exchange between the inside and outside of the cylinder. Limiting posts 13 are installed on the cylinder 12.

[0025] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The inspection delivery mechanism is installed inside the outer casing 1. This mechanism is controlled to drive several cylinders 12 to enter and exit the connecting cylinder 2 at equal intervals, ensuring that the cylinder 12 corresponding to the detector 3 is located in a relatively enclosed space. This prevents excessive external airflow from affecting the accuracy of the detection structure during testing. The inspection delivery mechanism includes: a first fixing group 4, a second fixing group 5, a connecting frame 6, a propulsion groove 7, a rotating cylinder 8, a groove 9, a protrusion 10, and a limiting groove 11.

[0026] The first fixing group 4 and the second fixing group 5 are symmetrically installed inside the outer casing 1. The two ends of the connecting frame 6 are connected to the first fixing group 4 and the second fixing group 5 respectively. The connecting frame 6 allows the first fixing group 4 and the second fixing group 5 to form a stable overall structure. A propulsion groove 7 is formed between the first fixing group 4 and the second fixing group 5. The rotating cylinder 8 is rotatably installed on the outside of the first fixing group 4 and the second fixing group 5. Several limiting grooves 11 are equidistantly opened on the rotating cylinder 8 along the circumference, and the limiting grooves 11 are parallel to the axis of the rotating cylinder 8. The length of the limiting grooves 11 is adapted to the width of the propulsion groove 7 relative to the axial direction of the rotating cylinder 8. Grooves 9 are respectively opened on the outer walls of the first fixing group 4 and the second fixing group 5 on opposite sides. Protrusions 10 are respectively installed at both ends of the rotating cylinder 8, and the protrusions 10 are slidably installed in the grooves 9. The mutual adaptation between the rotating cylinder 8 and the grooves 9 ensures the stable rotation of the rotating cylinder 8. The limiting post 13 slides through the propulsion groove 7 and the limiting groove 11. The controlled rotation of the rotating drum 8 can drive each limiting post 13 and the cylinder 12 to move circumferentially and axially reciprocate relative to the outer shell 1. In this embodiment, reference is made to... Figure 5 The propulsion groove 7 includes a rotating groove 701, an extending groove 702, and a retracting groove 703. The rotating groove 701 is circumferentially oriented. The extending groove 702 and the retracting groove 703 are connected, and the connection point protrudes towards the second fixed group 5 relative to the rotating groove 701. The connection point is also smoothly polished to ensure unobstructed passage. The extending groove 702 and the retracting groove 703 are connected to the rotating groove 701. The working principle of this structure is as follows: When the rotating cylinder 8 rotates, the limiting post 13 is simultaneously limited by the propulsion groove 7 and the limiting groove 11. When the limiting post 13 is located in the rotating groove 701, it drives the corresponding cylinder 12 to move circumferentially. When the limiting post 13 moves from the rotating groove 701 into the extending groove 702, the cylinder 12 moves axially into the connecting cylinder 2. When the limiting post 13 moves to the connection point of the extending groove 702 and the retracting groove 703, the cylinder 12 corresponds to the detection port of the detector 3, and data is obtained through detection. Subsequently, after the limiting post 13 enters the retraction groove 703 and returns to the rotation groove 701, the cylinder 12 is reset. During this process, the limiting post 13 moves axially along the limiting groove 11 to perform displacement compensation.

[0027] Furthermore, the connection point of the connecting cylinder 2 corresponds to the connection point of the extension groove 702 and the retraction groove 703, and the connecting cylinder 2 is set in a contracted shape towards the detector 3, so as to ensure that the cylinder 12 can start to move axially accurately when it reaches the position of the connecting cylinder 2, which is convenient to correspond with the detector 3, and the shape of the connecting cylinder 2 can avoid interference and obstruction when the cylinder 12 moves.

[0028] This intelligent real-time atmospheric particulate matter monitoring device also includes: teeth 14, a first gear 15, and a motor 16. Several teeth 14 are equidistantly installed on the outer wall of the rotating drum 8 along the circumference. The first gear 15 is rotatably installed in the housing 1 and meshes with the teeth 14. The motor 16 is installed in the housing 1, and its output end is connected to the first gear 15. In this embodiment, the motor 16 is a dual-output motor with two coaxial output ends, which is an existing device, model ET-CGM95F. Turning on the motor 16 drives the first gear 15 to rotate, thereby driving the rotating drum 8 to rotate.

[0029] refer to Figure 4 The outer casing 1 has a first mounting bracket 19 and a second mounting bracket 20 installed at its two ends, respectively. A support roller 17 is installed between the first mounting bracket 19 and the second mounting bracket 20, and the support roller 17 is coaxially arranged with the outer casing 1. The support roller 17 supports and limits the movement of each cylinder 12, ensuring stable circumferential and axial movement of each cylinder 12. Several balls 18 are installed in a circumferential array on the outer wall of the support roller 17. The balls 18 can be fixed to reduce the friction between the cylinder 12 and the support roller 17.

[0030] refer to Figure 6 , Figure 7 and Figure 8 The second mounting frame 20 is rotatably connected to the idler roller 17 and can rotate. The second mounting frame 20 is provided with a gear ring 24, and one end of a rotating shaft 22 is installed at the other output end of the motor 16. The other end of the rotating shaft 22 is provided with a second gear 23, and the second gear 23 is meshed with the gear ring 24. When the motor 16 is turned on, the second mounting frame 20 can be rotated through meshing transmission.

[0031] The outer wall of the idler roller 17 has a through groove 21 for gas flow. A flow mechanism is installed inside the idler roller 17, which can be controlled to cause the airflow to pass through the through groove 21 and blow towards the opposite cylinder 12.

[0032] The flow mechanism includes: a frame 25, a fixed cylinder 26, a drive groove 27, a telescopic seat 28, a push column 29, a rotating column 30, a pad 31, a fixed seat 32, a limiting block 33, and a limiting groove 34. The frame 25 is mounted on the end of the idler roller 17 away from the second mounting frame 20. The fixed cylinder 26 is mounted on the second mounting frame 20, and the two can rotate synchronously. The drive groove 27 is formed on the inner wall of the fixed cylinder 26. The telescopic seat 28 is slidably mounted in the fixed cylinder 26, and the push column 29 is mounted on the telescopic seat 28, and the push column 29 is slidably mounted in the drive groove 27. One end of the rotating column 30 is connected to the telescopic seat 28. Several pads 31 are equidistantly installed on the rotating column 30, and the diameter of the pads 31 is adapted to the inner diameter of the roller 17. When the rotating column 30 moves axially back and forth, the pads 31 can move synchronously. The fanning motion of the pads 31 can accelerate the airflow through the channel 21, accelerate the exchange of gas between the gas inside the cylinder 12 and the external environment, and ensure that the gas detected each time is the same as the external environment. The fixed seat 32 is installed on the frame 25, and the limiting block 33 is installed at the other end of the rotating column 30. The limiting groove 34 is opened on the fixed seat 32, and the limiting block 33 is slidably installed in the limiting groove 34. The inner cavity shape of the limiting groove 34 and the shape of the limiting block 33 are both rectangular and adapted to each other, ensuring that the limiting block 33 can only move axially relative to the limiting groove 34 and will not rotate relative to it. Simultaneously, the lengths of the limiting groove 34 and the limiting block 33 are matched with the axial distance of the driving groove 27 relative to the fixed cylinder 26, ensuring that the axial reciprocating movement of the rotating column 30 will not disengage from the inner cavity of the limiting groove 34. The driving groove 27 includes: a forward groove 2701, a reset groove 2702, and a stop groove 2703, which are connected in sequence. Each of the forward groove 2701, reset groove 2702, and stop groove 2703 constitutes a reciprocating unit. Several reciprocating units are circumferentially distributed and interconnected to form a complete channel. In use, the fixed cylinder 26 rotates with the second mounting bracket 20, pushing the column 29 to slide in the driving groove 27. When the pushing column 29 passes through the forward groove 2701 and the reset groove 2702, the rotating column 30 can complete one reciprocating movement. After passing through the stop groove 2703, it enters the next cycle, thereby ensuring the reciprocating movement of the pad 31 and the rapid flow of the fan air.

[0033] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An intelligent atmospheric particulate matter real-time monitoring device, comprising: A shell (1), a connecting cylinder (2) and a detector (3); one end of the connecting cylinder (2) is installed on the shell (1), and the detector (3) is installed on the other end of the connecting cylinder (2), characterized in that further comprising: a plurality of cylinder bodies (12) are installed equidistantly along the circumference in the shell (1); a limiting column (13) is installed on the cylinder body (12); Further comprising: a sending and detecting mechanism; the sending and detecting mechanism is installed in the shell (1) and can drive the plurality of cylinder bodies (12) to enter and leave the connecting cylinder (2) in turn at equal intervals under control; The sending and detecting mechanism comprises: a first fixed group (4), a second fixed group (5), a connecting frame (6), a pushing groove (7), a rotating cylinder (8) and a limiting groove (11); The first fixed group (4) and the second fixed group (5) are symmetrically installed in the shell (1); the two ends of the connecting frame (6) are connected with the first fixed group (4) and the second fixed group (5) respectively; the pushing groove (7) is formed between the first fixed group (4) and the second fixed group (5); the rotating cylinder (8) is rotatably installed outside the first fixed group (4) and the second fixed group (5); a plurality of limiting grooves (11) are equidistantly formed on the rotating cylinder (8) along the circumference, and the limiting grooves (11) are parallel to the shaft of the rotating cylinder (8); the limiting column (13) slides through the pushing groove (7) and the limiting groove (11); the rotating cylinder (8) can drive each limiting column (13) and cylinder body (12) to move circularly and reciprocally relative to the shell (1) under control. 2.The intelligent atmospheric particulate real-time monitoring device according to claim 1, characterized in that, The first fixed group (4) and the second fixed group (5) are respectively provided with a groove (9) on the opposite side outer wall; the rotating cylinder (8) is respectively provided with a protrusion (10) at the two ends, and the protrusion (10) is slidably installed in the groove (9). 3.The intelligent atmospheric particulate real-time monitoring device according to claim 2, characterized in that, Further comprising: A tooth (14), a first gear (15) and a motor (16); a plurality of teeth (14) are equidistantly installed on the outer wall of the rotating cylinder (8) along the circumference; the first gear (15) is rotatably installed in the shell (1), and the first gear (15) is connected with the tooth (14) in meshing; the motor (16) is installed in the shell (1), and the output end of the motor (16) is connected with the first gear (15). 4.The intelligent atmospheric particulate real-time monitoring device according to claim 3, characterized in that, A plurality of air holes (1201) are formed on the outer wall of the cylinder body (12). 5.The intelligent atmospheric particulate real-time monitoring device according to claim 4, characterized in that, The pushing groove (7) comprises: a rotating groove (701), an extending groove (702) and a retracting groove (703); the rotating groove (701) is formed along the circumference; the extending groove (702) and the retracting groove (703) are connected, and the connection part is protrudingly arranged relative to the rotating groove (701) towards the second fixed group (5), and the extending groove (702) and the retracting groove (703) are connected with the rotating groove (701). 6.The intelligent atmospheric particulate real-time monitoring device according to claim 5, characterized in that, The connecting cylinder (2) corresponds to the connection part of the extending groove (702) and the retracting groove (703), and the connecting cylinder (2) is arranged in a retracting manner towards the detector (3). 7.The intelligent atmospheric particulate real-time monitoring device according to claim 6, characterized in that, The first mounting frame (19) and the second mounting frame (20) are provided with a plurality of rolling balls (18) arranged in the circumferential direction of the outer wall of the supporting roller (17). 8.The intelligent atmospheric particulate real-time monitoring device according to claim 7, characterized in that, The second mounting frame (20) is connected with the supporting roller (17) through rotation. The supporting roller (17) is provided with a through slot (21) in the outer wall thereof; a flow mechanism is installed in the supporting roller (17); the flow mechanism is controlled to enable airflow to blow towards the cylinder (12) opposite to the supporting roller (17) through the through slot (21). The flow mechanism comprises a frame (25), a fixing cylinder (26), a driving slot (27), an extension seat (28), a pushing column (29), a rotating column (30), a leather pad (31), a fixing seat (32), a limiting block (33) and a limiting slot (34). The frame (25) is installed at one end of the supporting roller (17) away from the second mounting frame (20); the fixing cylinder (26) is installed on the second mounting frame (20); the driving slot (27) is formed in the inner wall of the fixing cylinder (26); the extension seat (28) is slidably installed in the fixing cylinder (26); the pushing column (29) is installed on the extension seat (28) and slidably installed in the driving slot (27); one end of the rotating column (30) is connected with the extension seat (28); a plurality of leather pads (31) are equidistantly installed on the rotating column (30) and have diameters matched with the inner diameter of the supporting roller (17); the fixing seat (32) is installed on the frame (25); the limiting block (33) is installed at the other end of the rotating column (30); the limiting slot (34) is formed in the fixing seat (32) and the limiting block (33) is slidably installed in the limiting slot (34). 9.The intelligent atmospheric particulate real-time monitoring device according to claim 8, characterized in that, The driving slot (27) comprises an advancing slot (2701), a reset slot (2702) and a slow-down slot (2703) connected in sequence. 10.The intelligent atmospheric particulate real-time monitoring device according to claim 9, characterized in that, The second mounting frame (20) is provided with a gear ring (24); one end of a rotating shaft (22) is installed on the other output end of the motor (16); the other end of the rotating shaft (22) is installed with a second gear (23) engaged with the gear ring (24).

Images