An integrated mobile aerosol observation device and method

By designing an integrated mobile aerosol monitoring device with servo motor-driven stirring blades and a telescopic housing, the problems of adsorption of external floating particles and uneven airflow were solved, achieving high accuracy and adaptability in aerosol detection.

CN119394864BActive Publication Date: 2025-11-14LANZHOU INST OF DROUGHT METEOROLOGY CHINA METEOROLOGICAL ADMINISTRATION
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Patent Information

Application Number
CN202411889485.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-14
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

Existing aerosol detection devices suffer from inaccurate data when externally floating solid particles adhere to the inner wall of the detection chamber or when airflow is uneven.

Method used

An integrated mobile aerosol observation device was designed, comprising a panel, rollers, handle, servo motor-driven stirring blades, and a telescopic housing. It simulates outdoor airflow by regulating airflow through mechanical transmission and an air pump, preventing particulate matter adsorption and adapting to different gas flow rates.

Benefits of technology

It improves the accuracy and adaptability of aerosol detection data, prevents particulate matter from adsorbing on the inner wall of the detection chamber, ensures airflow uniformity, and adapts to aerosol tests under different conditions.

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Abstract

This invention discloses an integrated mobile aerosol observation device and method, belonging to the technical field of aerosol observation devices and methods. It includes: a panel with rollers adapted to its bottom perimeter connected to all four sides, and a handle integrally formed on the panel; and a first adjustment and measurement mechanism, comprising a first housing, the bottom of which is connected to the panel via a first spring, and a servo motor fixedly mounted on the first housing. The output shaft of the servo motor passes through the first housing and extends to a first rotating shaft, on which a transverse stirring blade is fixedly connected. The first rotating shaft and a second rotating shaft fixed to a first bevel gear are connected by a first conveyor belt. This invention solves the technical problem that when externally floating solid particles adsorb onto the inner wall of the detection chamber or cannot create the same airflow disturbance as the external environment, it hinders the improvement of detection data accuracy.
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Description

Technical Field

[0001] This invention belongs to the technical field of aerosol observation devices and methods, specifically relating to an integrated mobile aerosol observation device and method. Background Technology

[0002] Aerosols are gaseous dispersion systems composed of solid or liquid particles suspended in a gaseous medium. The density of these solid or liquid particles can differ slightly from the density of the gaseous medium, or it can differ significantly. For example, the particle size of plant aerosols such as pollen is between 5 and 100 µm, while the particle size of aerosols produced by the combustion of wood and tobacco is typically between 0.01 and 1000 µm. Therefore, the shapes of the particles are diverse, ranging from nearly spherical, such as liquid droplets, to flakes, needles, and other irregular shapes. From a fluid dynamics perspective, aerosols are essentially multiphase fluids with the gaseous phase as the continuous phase and the solid and liquid phases as the dispersed phases.

[0003] Aerosol measuring instruments are primarily used to measure vertical aerosol concentrations and cloud extinction coefficients, monitor the sources, types, and evolution of pollutants, and observe cloud and boundary layer characteristics. They are based on optical principles and light scattering theory. The aerosol measuring instrument generates a monochromatic laser beam that passes through atmospheric particles. When the laser encounters particles, some of the light is scattered. A receiver receives the scattered light and measures its intensity and scattering angle. Based on the intensity and angle of the scattered light, the concentration and size of the particles can be calculated.

[0004] When conducting aerosol testing in outdoor environments, the accuracy of the data can be greatly affected if the variables of the testing environment cannot be effectively adjusted. For example, if floating solid particles in the outside environment are adsorbed on the walls of the testing chamber or if the airflow disturbance is not the same as that in the outside environment, it will be detrimental to improving the accuracy of the test data. Moreover, existing testing chambers cannot adapt to changes in volume based on the amount of gas absorbed, which also reduces the applicability of the test. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated mobile aerosol observation device and method to solve the technical problem that the accuracy of detection data is not improved when floating solid particles from the outside are adsorbed on the inner wall of the detection chamber or when the airflow disturbance is not the same as that of the outside environment.

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

[0007] An integrated mobile aerosol observation device includes:

[0008] The panel has rollers that are adapted to it connected around the bottom four sides, and a handle is integrally installed on the panel;

[0009] The first adjustment and measuring mechanism includes a first housing, the bottom of which is connected to a panel via a first spring, and a servo motor is fixedly mounted on the first housing. The output shaft of the servo motor passes through the first housing and extends to a first rotating shaft. A transverse stirring blade is fixedly connected to the first rotating shaft. The first rotating shaft and a second rotating shaft fixed on a first bevel gear are connected by a first conveyor belt.

[0010] The first bevel gear meshes with a second bevel gear fixed on a movable rod. One end of the movable rod is connected to a turntable placed on the inner wall of the cover. A vertical stirring blade placed between the side wall of the first box and the cover is connected to the outer wall of the movable rod away from the turntable. The protrusion on the turntable is connected to the push rod through a swing rod. The outer wall of the push rod has a strip groove that penetrates the bottom of the first box along the height direction of the fixed block.

[0011] The second adjustment and measuring mechanism includes a second housing, with telescopic chambers connected to both sides of the outer wall of the second housing, and the second adjustment and measuring mechanism adjusts the size of the second housing space by telescopic movement;

[0012] Furthermore, both the first and second boxes are equipped with aerosol measuring instruments.

[0013] Furthermore, the second adjustment and measuring mechanism also includes a central rotating tooth placed on the second housing. The fixed shaft on the central rotating tooth and the output shaft of the servo motor are connected by a second conveyor belt. Both ends of the outer wall of the central rotating tooth are meshed with gear plates that move in opposite directions. The extension of one end of the gear plate is connected to the telescopic chamber.

[0014] Furthermore, a storage box is movably connected to the bottom of the inner wall of the second box. The storage box is a pull-out design, and both sides of the bottom end of the storage box are connected to guide wheels on the side wall of the second box.

[0015] Furthermore, it also includes an air intake mechanism, which includes a U-shaped tube placed on a first housing and a second housing. An air pump fixed to an air intake nozzle is installed on the U-shaped tube through a flow guide assembly. The air intake nozzle is cone-shaped, and a corrugated hose is installed on one end of the U-shaped tube near the first housing.

[0016] Furthermore, the flow guiding assembly includes symmetrically arranged bent plates on the inner wall of the conduit. The bent plates are rotatably connected to the inner wall of the conduit via a movable shaft, and a matching return spring is connected to the inner wall of the movable shaft. Trapezoidal blocks are fixedly installed on the inner wall of the conduit, and a flow guiding cavity is formed between the trapezoidal blocks and placed inside the conduit. A second spring is provided between the flow guiding cavities. A bracket fixed to the inner wall of the conduit is installed at one end of the second spring, and a baffle is installed at the other end.

[0017] Furthermore, between the baffle plate and the bending plate, there are flow equalizing plates distributed at equal intervals on the inner wall of the duct, and the flow equalizing plates are arranged in a conical shape near the air inlet.

[0018] Furthermore, both sides of the swing rod are mounted on the protrusion and the push rod by a rotatable connection, the movable rod and the push rod are vertically arranged, and the horizontal stirring blade and the vertical stirring blade are respectively connected to the first rotating shaft and the movable rod by a plug-in installation.

[0019] Furthermore, the bottom of the push rod is rounded, and as the servo motor starts, the push rod, under the elastic recovery action of the first spring, causes the first housing to drive the first adjustment and measuring mechanism to vibrate up and down.

[0020] An integrated mobile aerosol observation method includes the following steps:

[0021] S1. Push the device to the designated position using the handle, turn on the air pump, and draw outside gas into the first and second chambers respectively through the U-shaped tube;

[0022] S2. Start and control the servo motor, which, under the action of mechanical transmission, drives the horizontal stirring blade on the first rotating shaft to rotate, and at the same time drives the vertical stirring blade on the movable rod to rotate, thus creating the first measurement environment for gas flow.

[0023] S3. After the servo motor starts, the gear plate will drive the telescopic chamber to move in the opposite direction, thereby changing the volume change inside the second box, thus creating a second measurement environment for adjusting the volume size.

[0024] S4. Using the aerosol measuring instrument, calculate the concentration and size of particulate matter in the first and second measurement environments.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] (1) A pushing mechanism is set up. The panel is equipped with rollers. Under the pushing action of the handle, the device can be pushed to the corresponding indicator point, so as to facilitate the corresponding aerosol measurement work in the area.

[0027] (2) A first adjustment and measurement mechanism is set up. When the servo motor starts, it can drive the rotation of the horizontal stirring blade through the first rotating shaft, and then drive the rotation of the second rotating shaft through the first conveyor belt. With the help of mechanical transmission, the power can be transmitted to the turntable of the movable rod and make it rotate. Since the swing rod is connected to the turntable and the push rod, the rotational motion of the turntable can be converted into the up and down movement of the push rod. Moreover, when the movable rod rotates, it can drive the rotation of the vertical stirring blade, which can generate gas turbulence, simulate the outdoor air environment, and prevent floating particles from adsorbing or even accumulating on the inner wall of the first chamber, thus affecting the accuracy of the detection data. At the same time, the movement of the push rod, in conjunction with the first spring, can make the first chamber move accordingly, which can further prevent particles from adhering to the inner wall of the first chamber, thereby further improving the accuracy of the data.

[0028] (3) A second adjustment and measurement mechanism is set up. After the servo motor is started, it can drive the rotation of the central rotating tooth through the second conveyor belt, thereby causing the gear plate to drive the telescopic chambers at both ends to move. This can adaptively adjust and change the size of the space inside the second box. In addition, while adjusting the space of the second box, a variable parameter is formed to adapt to the air intake under different conditions and detect the corresponding aerosol test data. At the same time, during the movement of the telescopic chamber, the particles it accumulates will automatically fall into the collection box for collection through the squeezing and aggregation effect, which is convenient for personnel to clean.

[0029] (4) Set up a flow guide component. After the air pump is started, in order to adapt and automatically adjust the flow rate, when the flow rate is too large, the bending plate on the movable shaft will rotate in the center, thereby reducing the size of the flow port, so that the flow rate can be reduced. At the same time, the downward movement distance of the baffle plate will also increase, and the air hole between the baffle plate and the trapezoidal block will also be reduced. Moreover, the setting of the flow equalization plate between the baffle plate and the bending plate can achieve the purpose of the airflow passing through at a uniform speed. The above structural design can adapt and automatically adjust the gas flow rate of different sizes, thereby preventing the gas volume from being unable to be accurately controlled due to the airflow being too large or too small. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an integrated mobile aerosol observation device according to the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of an integrated mobile aerosol observation device according to the present invention. Figure 2 ;

[0033] Figure 3 This is a front view of an integrated mobile aerosol observation device according to the present invention.

[0034] Figure 4 This is a schematic diagram of the interior of the first housing of the present invention;

[0035] Figure 5 This is a schematic diagram of the meshing transmission of the first bevel gear and the second bevel gear of the present invention;

[0036] Figure 6 This is a schematic diagram showing the connection between the turntable and the push rod of the present invention;

[0037] Figure 7 This is a schematic diagram of the meshing transmission of the central rotating tooth of the present invention;

[0038] Figure 8 This is a schematic diagram of the interior of the second housing of the present invention;

[0039] Figure 9 This is a schematic diagram of the flow guiding component of the present invention;

[0040] Figure 10 This is a flowchart illustrating an integrated mobile aerosol observation method according to the present invention.

[0041] Reference numerals: 1. Panel; 2. Handle; 3. First adjusting and measuring mechanism; 4. First housing; 5. First spring; 6. Servo motor; 7. First rotating shaft; 8. Horizontal stirring blade; 9. First bevel gear; 10. Second rotating shaft; 11. First conveyor belt; 12. Movable rod; 13. Second bevel gear; 14. Turntable; 15. Vertical stirring blade; 16. Push rod; 17. Swing rod; 18. Fixed block; 19. Second adjusting and measuring mechanism 20. Second housing; 21. Telescopic chamber; 22. Central rotating gear; 23. Second conveyor belt; 24. Gear plate; 25. Storage box; 26. Guide wheel; 27. Air intake mechanism; 28. U-shaped tube; 29. ​​Flow guiding assembly; 30. Air intake nozzle; 31. Air pump; 32. Bending plate; 33. Return spring; 34. Trapezoidal block; 35. Second spring; 36. Baffle plate; 37. Flow equalization plate; 38. Aerosol measuring instrument; 39. Cover. Detailed Implementation

[0042] 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.

[0043] Reference manual attached Figure 1 and Figure 2 As shown, an integrated mobile aerosol observation device includes:

[0044] Panel 1, with rollers adapted to its bottom perimeter connected to all four sides, and a handle 2 integrally formed on panel 1; First adjustment and measuring mechanism 3, including a first housing 4, the bottom end of the first housing 4 being connected to panel 1 via a first spring 5, and a servo motor 6 fixedly mounted on the first housing 4, the output shaft of the servo motor 6 passing through the first housing 4 and extending to a first rotating shaft 7, a transverse stirring blade 8 fixedly connected to the first rotating shaft 7, and the first rotating shaft 7 and a second rotating shaft 10 fixed on a first bevel gear 9 being connected by a first conveyor belt 11; wherein, the outer wall of the first bevel gear 9 meshes with a fixed... The second bevel gear 13 is on the movable rod 12. One end of the movable rod 12 is connected to a turntable 14 placed on the inner wall of the cover 39. The side of the outer wall of the movable rod 12 away from the turntable 14 is connected to a vertical stirring blade 15 placed between the side wall of the first box 4 and the cover 39. The protrusion on the turntable 14 and the push rod 16 are connected by a swing rod 17. The outer wall of the push rod 16 is provided with a strip groove that penetrates the bottom of the first box 4 along the height direction of the fixed block 18. A pushing mechanism is provided. The panel 1 is provided with rollers. Under the pushing action of the handle 2, the device can be pushed to the corresponding indicator point, thereby facilitating the corresponding aerosol measurement work in the area.

[0045] Specifically, and more broadly, for aerosol detection in outdoor environments at different altitudes, the device can be mounted on a drone. This allows the drone to significantly increase its contact with outdoor environments at greater altitudes during flight, thereby expanding the application of aerosol detection in different areas. Simultaneously, the conduit on the intake nozzle 30 can be a telescopic design, secured with bolts or locating pins. This allows for adaptive extension of the conduit's height, enabling the intake of air at different altitudes. The aforementioned bolts and locating pins are conventional techniques for those skilled in the art; therefore, they are not described in detail here, nor are corresponding drawings provided. However, this does not affect the implementation of the technical solution of this invention.

[0046] refer to Figure 1 , Figure 7and Figure 8 The second adjustment and measuring mechanism 19 includes a second housing 20. Both sides of the outer wall of the second housing 20 are connected to telescopic chambers 21, and the second adjustment and measuring mechanism 19 adjusts the size of the space of the second housing 20 by telescopic movement.

[0047] The second adjustment and measurement mechanism 19 also includes a central rotating gear 22 placed on the second housing 20. The fixed shaft on the central rotating gear 22 and the output shaft of the servo motor 6 are connected by a second conveyor belt 23. Both ends of the outer wall of the central rotating gear 22 are meshed with gear plates 24 that move in opposite directions. One end of the gear plate 24 is connected to the telescopic chamber 21. A storage box 25 is movably connected to the bottom of the inner wall of the second housing 20. The storage box 25 is a pull-out design, and both sides of the bottom end of the storage box 25 are connected to guide wheels 26 on the side wall of the second housing 20.

[0048] Specifically, after the servo motor 6 is started, it can drive the fixed shaft to rotate through the second conveyor belt 23. Then the power is transmitted to the central rotating tooth 22 and makes it rotate. Under the action of gear meshing transmission, the gear plate 24 can drive the telescopic chamber 21 to move. In this way, the size of the space inside the second box 20 will be adjusted and changed accordingly to adapt to the air intake brought by the air pump 31 at different levels.

[0049] The second adjustment and measurement mechanism 19 is set up. After the servo motor 6 is started, it can drive the rotation of the central rotating tooth 22 through the second conveyor belt 23, thereby causing the gear plate 24 to drive the telescopic chambers 21 at both ends to move. This can adaptively adjust and change the size of the space inside the second box 20. In this way, while adjusting the space of the second box 20, a variable parameter is formed to adapt to the air intake under different conditions and to detect the corresponding aerosol test data. At the same time, during the movement of the telescopic chamber 21, the particles that are collected will automatically fall into the collection box 25 for collection through compression and aggregation, which is convenient for personnel to clean.

[0050] Furthermore, during prolonged use, particulate impurities inside the telescopic chamber 21 will adhere to the inner wall of the second housing 20. During the pushing process, the telescopic chamber 21 can push the accumulated impurities into the storage box 25. Moreover, the edges of the storage box 25 are inclined, which makes it easier for the particles to slide into the storage box 25. In addition, the guide wheels 26 on the inner wall of the second housing 20 allow the storage box 25 to move by rolling friction, and also have a limiting and guiding function. At the same time, rolling friction can effectively reduce the friction between structural components, reduce friction damage, and thus improve the service life of the device.

[0051] refer to Figure 2 , Figure 3 and Figure 9 An integrated mobile aerosol observation device also includes an air intake mechanism 27, which includes a U-shaped tube 28 placed on a first housing 4 and a second housing 20. An air pump 31 fixed on an air intake nozzle 30 is installed on the U-shaped tube 28 through a flow guide component 29. The air intake nozzle 30 is cone-shaped.

[0052] The flow guiding assembly 29 includes symmetrically arranged bent plates 32 on the inner wall of the conduit. The bent plates 32 are rotatably connected to the inner wall of the conduit via a movable shaft, and a matching return spring 33 is connected to the inner wall of the movable shaft. Trapezoidal blocks 34 are fixedly installed on the inner wall of the conduit, and a flow guiding cavity is formed between the trapezoidal blocks 34 and placed inside the conduit. A second spring 35 is provided between the flow guiding cavities. A bracket fixed to the inner wall of the conduit is installed at one end of the second spring 35, and a baffle plate 36 is installed at the other end.

[0053] Between the baffle plate 36 and the bending plate 32, there are flow equalizing plates 37 evenly distributed on the inner wall of the duct. The flow equalizing plates 37 are conical in shape near the air inlet. The conical flow equalizing plates 37 can reduce air resistance, thereby allowing the airflow to pass through at a uniform speed and stably. At the same time, the flow equalizing plates 37 are located between the bending plate 32 and the baffle plate 36, which can also play a role in transition regulation for the airflow.

[0054] After the air pump 31 is started, the flow guide component 29 is set up. In order to automatically adjust the flow rate adaptively, when the flow rate is too large, the bending plate 32 on the movable shaft will rotate in the center to reduce the size of the flow port, so that the flow rate can be reduced. At the same time, the downward movement distance of the baffle plate 36 will also increase, and the air hole between the baffle plate 36 and the trapezoidal block 34 will also be reduced. Moreover, the flow equalization plate 37 between the baffle plate 36 and the bending plate 32 can achieve the purpose of uniform airflow. The above structural design can adaptively and automatically adjust the gas flow rate of different sizes, thereby preventing the gas volume from being unable to be accurately controlled due to excessive or insufficient airflow.

[0055] Specifically, when the airflow is too large, the adjustment movement of the bending plate 32 and the baffle plate 36 can reduce the airflow opening and thus reduce the flow rate. When the airflow is too large, the adjustment movement of the bending plate 32 and the baffle plate 36 can expand the airflow opening and thus increase the flow rate. This can prevent the airflow from being too large or too small from entering the chamber and prevent the external gas flow rate from being not accurately controlled and adjusted.

[0056] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6Both sides of the swing rod 17 are mounted on the protrusion and the push rod 16 by means of rotational connection. The movable rod 12 and the push rod 16 are set vertically. The horizontal stirring blade 8 and the vertical stirring blade 15 are respectively connected to the first rotating shaft 7 and the movable rod 12 by means of plug-in installation.

[0057] The bottom of the push rod 16 is rounded, and as the servo motor 6 starts, the push rod 16, under the elastic recovery action of the first spring 5, causes the first housing 4 to drive the first adjustment and measuring mechanism 3 to vibrate up and down. Both the first housing 4 and the second housing 20 are connected to an aerosol measuring instrument 38.

[0058] The rounded corners at the bottom of the push rod 16 prevent the contact area from being too small when it comes into contact with the panel 1, which would lead to excessive force concentration and force load, thereby compromising the safety of the structure. At the same time, the rounded corners of the push rod 16 also help to increase the aesthetics of the device.

[0059] When the first adjustment and measuring mechanism 3 is set up and the servo motor 6 is started, it can drive the rotation of the transverse stirring blade 8 through the first rotating shaft 7, and then drive the rotation of the second rotating shaft 10 through the first conveyor belt 11. With the help of mechanical transmission, the power can be transmitted to the turntable 14 of the movable rod 12 and make it rotate. Since the swing rod 17 is rotatably connected to the turntable 14 and the push rod 16, the rotational motion of the turntable 14 can be converted into the up and down movement of the push rod 16. Moreover, when the movable rod 12 rotates, it can drive the rotation of the vertical stirring blade 15, which can generate gas turbulence, simulate the outdoor air environment, and prevent floating particles from being adsorbed or even accumulated on the inner wall of the first chamber 4, thus affecting the accuracy of the detection data. At the same time, the movement of the push rod 16, in conjunction with the first spring 5, can make the first chamber 4 move accordingly, which can further prevent particles from adhering to the inner wall of the first chamber 4, thereby further improving the accuracy of the data.

[0060] refer to Figure 10 An integrated mobile aerosol observation method includes the following steps:

[0061] S1. Push the device to the designated position using handle 2, turn on the air pump 31, and draw the outside gas into the first chamber 4 and the second chamber 20 respectively through the U-shaped tube 28.

[0062] S2. Start and control the servo motor 6, which, under the action of mechanical transmission, drives the horizontal stirring blade 8 on the first rotating shaft 7 to rotate, and at the same time drives the vertical stirring blade 15 on the movable rod 12 to rotate, thus creating the first measurement environment for gas flow.

[0063] S3. After the servo motor 6 is started, the gear plate 24 will drive the telescopic chamber 21 to move in the opposite direction, thereby changing the volume change inside the second box 20, thus creating a second measurement environment for adjusting the volume size.

[0064] S4. Under the action of the aerosol measuring instrument 38, the concentration and size of particulate matter in the first and second measurement environments are calculated.

[0065] The entire observation method is rationally designed and can quickly measure aerosols in outdoor air environments. A monochromatic laser is generated by a laser, and after the laser passes through the particles, the receiver measures the intensity and angle of the scattered light. The concentration and size of the particles are inferred through corresponding mathematical models and algorithms. Moreover, the measurement environment can be changed to better match the outdoor air environment, resulting in high measurement accuracy.

[0066] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0067] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated mobile aerosol observation device, characterized in that, include: Panel (1), with rollers adapted to it connected to the bottom four sides of the panel (1), and a handle (2) integrally formed on the panel (1). The first adjustment and measuring mechanism (3) includes a first housing (4), the bottom end of the first housing (4) is connected to the panel (1) by a first spring (5), and a servo motor (6) is fixedly installed on the first housing (4). The output shaft of the servo motor (6) passes through the first housing (4) and extends to the first rotating shaft (7). A transverse stirring blade (8) is fixedly connected to the first rotating shaft (7). The first rotating shaft (7) and the second rotating shaft (10) fixed on the first bevel gear (9) are connected by a first conveyor belt (11). Among them, the outer wall of the first bevel gear (9) meshes with a second bevel gear (13) fixed on the movable rod (12). One end of the movable rod (12) extends to the turntable (14) on the inner wall of the cover, and the other end is connected to a vertical stirring blade (15) placed between the first box (4) and the cover. The protrusion on the turntable (14) and the push rod (16) are connected by a swing rod (17). The outer wall of the push rod (16) is provided with a strip groove that penetrates the bottom of the first box (4) along the height direction of the fixed block (18). The second adjustment and measuring mechanism (19) includes a second housing (20), and telescopic chambers (21) are connected to both sides of the outer wall of the second housing (20). The second adjustment and measuring mechanism (19) adjusts the size of the space of the second housing (20) by telescopic movement. It also includes a suction mechanism (27), which includes a U-shaped tube (28) placed on the first housing (4) and the second housing (20). An air pump (31) fixed on the suction nozzle (30) is installed on the U-shaped tube (28) through a flow guide assembly (29). The suction nozzle (30) is cone-shaped, and a corrugated hose is installed on one end of the U-shaped tube (28) near the first housing (4). The flow guiding assembly (29) includes a bent plate (32) symmetrically arranged on the inner wall of the conduit. The bent plate (32) is rotatably connected to the inner wall of the conduit via a movable shaft, and a reset spring (33) adapted to it is connected to the inner wall of the movable shaft. A trapezoidal block (34) is fixedly installed on the inner wall of the conduit, and a flow guiding cavity is formed between the trapezoidal blocks (34) and placed inside the conduit.

2. The aerosol integrated mobile observation device according to claim 1, characterized in that, The second adjustment and measuring mechanism (19) also includes a central rotating tooth (22) placed on the second housing (20). The fixed shaft on the central rotating tooth (22) and the output shaft of the servo motor (6) are connected by a second conveyor belt (23). Both ends of the outer wall of the central rotating tooth (22) are meshed with gear plates (24) that move in opposite directions. The extension of one end of the gear plate (24) is connected to the telescopic chamber (21).

3. The aerosol integrated mobile observation device according to claim 2, characterized in that, The bottom of the inner wall of the second box (20) is movably connected to a storage box (25). The storage box (25) is a pull-out design, and both sides of the bottom end of the storage box (25) are connected to guide wheels (26) on the side wall of the second box (20).

4. The aerosol integrated mobile observation device according to claim 1, characterized in that, A second spring (35) is provided between the flow guide cavities. One end of the second spring (35) is equipped with a bracket fixed on the inner wall of the conduit, and the other end is equipped with a baffle plate (36).

5. The aerosol integrated mobile observation device according to claim 4, characterized in that, Between the baffle plate (36) and the bending plate (32), there are flow equalizing plates (37) evenly distributed on the inner wall of the duct, and the flow equalizing plates (37) are arranged in a conical shape near the air inlet.

6. The aerosol integrated mobile observation device according to claim 1, characterized in that, Both sides of the swing rod (17) are mounted on the protrusion and the push rod (16) by means of rotational connection. The movable rod (12) and the push rod (16) are vertically arranged. The horizontal stirring blade (8) and the vertical stirring blade (15) are respectively connected to the first rotating shaft (7) and the movable rod (12) by means of plug-in installation.

7. The aerosol integrated mobile observation device according to claim 6, characterized in that, The bottom of the push rod (16) is rounded. As the servo motor (6) starts, the push rod (16) is elastically restored by the first spring (5), and the first housing (4) drives the first adjustment and measuring mechanism (3) to vibrate up and down. Both the first housing (4) and the second housing (20) are connected to an aerosol measuring instrument (38).

8. An integrated mobile aerosol observation method, applied to the integrated mobile aerosol observation device according to any one of claims 1-7, characterized in that, Includes the following steps: S1.

1. Push the device to the designated position using the handle (2), turn on the air pump (31), and draw the outside gas into the first box (4) and the second box (20) respectively through the U-shaped tube (28); S1.2 Start and control the servo motor (6), which, under the action of mechanical transmission, drives the horizontal stirring blade (8) on the first rotating shaft (7) to rotate, and at the same time drives the vertical stirring blade (15) on the movable rod (12) to rotate, thus creating the first measurement environment for gas flow. After the servo motor (6) in step S1.3 and S1.2 is started, the gear plate (24) will drive the telescopic chamber (21) to move in the opposite direction, thereby changing the volume change in the second box (20) and thus constructing a second measurement environment for adjusting the volume size change. S1.4 Under the action of the aerosol measuring instrument (38), the concentration and size of particulate matter in the first and second measurement environments are calculated.

Citation Information

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