A dynamic air pollution monitoring device and method

Abstract

This application discloses a dynamic air pollution monitoring device and method, relating to the field of air monitoring technology. The device includes a housing housing housing receiving terminals for PM2.5 sensors, VOCs sensors, and optical sensors. These receiving terminals are connected to an information terminal. The device also includes a vertical tube mounted on the housing. In use, a handle drives a threaded rod, causing the housing to move downwards. This gradually pushes a wedge against a push rod, which in turn pushes a push rod against a baffle, releasing the baffle from obstructing the side tube opening. An exhaust fan draws air from the outside into the housing through the inlet and out of the vertical tube through the outlet. The downward movement of the housing causes the sensors to detect at different heights, thus monitoring the location and increasing the accuracy of the monitoring.

Description

Technical Field

[0001] This application relates to the field of air monitoring technology, specifically to a dynamic air pollution monitoring device and method. Background Technology

[0002] With the development of technology, the problem of air pollution has also emerged. Currently, my country's main method for detecting atmospheric pollutants is through local atmospheric environmental monitoring agencies, which reflect the environmental status in the form of an overall average value. However, in order to make air monitoring more convenient, air pollutant monitoring micro-stations are used to detect air. By carrying the device around, it can monitor the air more dynamically.

[0003] Existing monitoring devices monitor air quality through sensors, but these sensors are often fixed in place, resulting in a relatively fixed monitoring range and inaccurate monitoring results.

[0004] Therefore, this invention proposes a dynamic air pollution monitoring device and method to improve this problem. Summary of the Invention

[0005] The purpose of this application is to provide a dynamic air pollution monitoring device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A dynamic air pollution monitoring device includes a housing containing receivers for a PM2.5 sensor, a VOCs sensor, and an optical sensor. The receivers for the PM2.5 sensor, VOCs sensor, and optical sensor are connected to an information terminal. The device also includes:

[0008] A vertical tube is installed on the housing. Multiple side tubes are installed on the vertical tube. The openings of the side tubes are hinged with covers. The covers are used to block or unblock the openings of the side tubes. A push rod is slidably installed inside the vertical tube via a connecting spring. An inclined block is installed on the push rod. An exhaust fan is installed at the top of the vertical tube. The exhaust fan is used to generate airflow from inside the vertical tube to outside the vertical tube.

[0009] A driving component is installed inside a vertical tube. The driving component includes a threaded rod rotatably installed inside the vertical tube. A bevel gear set is installed inside the vertical tube. One bevel gear of the bevel gear set is rotatably installed inside the vertical tube and has a handle rod that rotates through the vertical tube. The other bevel gear is installed on the threaded rod. A receiving shell is threadedly connected to the threaded rod. A sliding rod that slides with the receiving shell is installed inside the vertical tube. PM2.5, VOCs, and optical sensors are all installed inside the receiving shell. The receiving shell has an air inlet and an air outlet. The axis of the air inlet is parallel to the axis of the side tube, and the axis of the air outlet is coaxial with the axis of the vertical tube. When the receiving shell abuts against the inclined block, the push rod abuts against the cover, thereby releasing the cover from obstructing the side tube.

[0010] Furthermore, a mounting plate is installed on the push rod, and a sliding plate is installed on the mounting plate. A sliding groove is formed on the sliding plate, and the inclined block is slidably installed in the sliding groove. A baffle is installed on the mounting plate to block the opening of the sliding groove. The length of the baffle is shorter than the length of the sliding groove. When the inclined block contacts the baffle, it is so that the inclined block can only slide along the length direction of the sliding groove. A rotating plate is hinged to the sliding plate. The rotating plate is positioned higher than the baffle, so that when the inclined block slides to the point of contacting the rotating plate, the inclined block can slide not only along the length direction of the sliding groove, but also along the depth direction of the sliding groove.

[0011] Furthermore, the housing includes an integrally formed main housing and a connecting housing. The PM2.5 sensor, VOCs sensor, and optical sensor are installed inside the main housing. A drive gear is rotatably mounted on the connecting housing. A guide block is mounted on the drive gear. A guide groove for accommodating the guide block is formed on the threaded rod. A transmission gear that meshes with the drive gear is rotatably mounted on the main housing. A circular cavity is formed on the transmission gear. A brush plate is installed inside the circular cavity. The brush plate is used to contact the inner wall of the air outlet.

[0012] Furthermore, a raised shell is installed on the vertical tube to form an expansion cavity inside the vertical tube. A feedback block is slidably installed inside the expansion cavity via a compression spring, and the feedback block is used to abut against the receiving shell.

[0013] Furthermore, the vertical tube includes a fixed plate and a surrounding plate. The fixed plate is fixedly installed on the machine housing, and the surrounding plate is slidably inserted into the machine housing. When the surrounding plate slides to contact the fixed plate, the interior of the surrounding plate and the fixed plate form a complete tube cavity. A clamping plate is installed on the raised shell located on the fixed plate. The clamping plate is used to accommodate the raised shell located on the surrounding plate. An insertion rod is slidably installed on the clamping plate by a return spring. An insertion hole for accommodating the insertion rod is opened on the raised shell located on the surrounding plate.

[0014] Furthermore, the enclosure is divided into multiple panels, each panel having vertical rods installed on it and vertical holes for accommodating the vertical rods on adjacent panels.

[0015] Furthermore, the cover is made of a magnetic material, and the side tube is made of iron or other metal materials.

[0016] Furthermore, the housing is provided with a guide rail groove, and a roller that is tactilely connected to the guide rail groove is installed at the bottom of the lowest partition plate.

[0017] Furthermore, the housing is connected to an insertion plate by bolts and threads. The insertion plate is used to insert into the guide rail groove to restrict the movement of the rollers in the guide rail groove.

[0018] This application also provides a dynamic air pollution monitoring method, applicable to any of the above-mentioned dynamic air pollution monitoring devices, comprising:

[0019] S1. Transport the casing to the monitoring location using a trolley or other handling equipment;

[0020] S2. During monitoring, the housing is driven by a threaded rod, causing the PM2.5 sensor, VOCs sensor, and optical sensor to be positioned at different heights for monitoring.

[0021] S3. Move the monitoring device at the same test location and perform monitoring, and take multiple samples at the same test location;

[0022] S4. Transmit the test data to the information terminal and analyze the data.

[0023] The beneficial effects of this application are as follows:

[0024] 1. In use, this application drives the threaded rod with a handle, which in turn moves the housing downwards. The housing gradually pushes the inclined block, which in turn moves the push rod to abut the cover. This releases the cover from obstructing the side pipe opening. An exhaust fan allows external airflow to enter the housing from the air inlet and then be drawn out of the vertical pipe from the air outlet. As the housing gradually moves downwards, it drives the various sensors to detect at different heights, thereby completing the monitoring of the monitoring location and increasing the accuracy of the monitoring.

[0025] 2. Under normal conditions, the inclined block, under the influence of gravity, rests at the bottom of the sliding groove, with its end in contact with the baffle. At this time, when the two accommodating holes move from top to bottom, the accommodating shell directly abuts against the inclined block, causing the push rod to abut against the baffle, thus opening the baffle. After monitoring at one location is completed, the reverse threaded rod causes the accommodating shell to move upwards. The pipe of the accommodating shell then contacts the bottom of the inclined block, pushing it upwards within the sliding groove, causing the inclined block to slide to the rotating plate. When the inclined block slides to its maximum extent within the sliding groove, the arc-shaped opening of the accommodating shell guides the inclined block, causing it to... The rotating plate abuts against the sliding groove, causing it to rotate and release its obstruction. This allows the inclined block to slide horizontally within the sliding groove. At this point, while the inclined block releases its contact with the housing, it does not cause the push rod to slide. Even if the push rod is moved by friction, the applied force is insufficient to push the cover open. This design allows the covers to open one by one as the housing moves downward, and prevents them from opening when the housing returns to its original position. This increases the airflow in the vertical pipe and improves the accuracy of the monitoring device.

[0026] 3. When this application is in use, the drive gear rotates together with the threaded rod. Since the drive gear meshes with the transmission gear, it can also drive the transmission gear to rotate, and drive the brush plate inside the circular wall to make a circular motion around the axis of the air outlet. This causes the brush plate to brush the inner wall of the air outlet, reducing the possibility of the air outlet being blocked by dust in the air, thereby increasing the practicality of the device.

[0027] 4. In this application, the diameter of the vertical tube at the raised shell is larger than the diameter elsewhere, which also makes the inner diameter of the expansion chamber larger than the inner diameter of the vertical tube. An inclined surface is provided on the feedback block. When the receiving shell comes into contact with it, the inclined surface guides the feedback block to slide into the expansion chamber to make way for the receiving shell. With the above settings, when the receiving shell moves to the point where the air inlet is aligned with the side tube, it contacts the feedback block. At this time, if the threaded rod wants to continue to rotate, there will be more obvious resistance feedback, prompting the operator to rotate it to the correct position, which increases the convenience of the device during use. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of this application;

[0029] Figure 2 This is a schematic diagram of the structure on the push rod of this application;

[0030] Figure 3 This is another schematic diagram of the structure on the push rod of this application;

[0031] Figure 4 This is a schematic diagram of the structure on the housing shell of this application;

[0032] Figure 5 This is an exploded view of part of the structure of this application;

[0033] Figure 6 This application Figure 4 Exploded view of the middle structure;

[0034] Figure 7 This is an exploded view of the casing and panel structure of this application;

[0035] Figure 8 This is a three-dimensional sectional view of the vertical pipe in this application;

[0036] Figure 9 This is a three-dimensional sectional view of the plate in this application;

[0037] Figure 10 This is a schematic diagram of the method structure of this application;

[0038] Reference numerals: 1. Housing; 2. Vertical tube; 201. Side tube; 202. Cover; 203. Connecting spring; 204. Push rod; 205. Inclined block; 206. Exhaust fan; 207. Fixing plate; 208. Enclosure; 3. Driving component; 301. Threaded rod; 302. Receiving shell; 3021. Main shell; 3022. Connecting shell; 303. Sliding rod; 304. Air inlet; 305. Air outlet; 306. Bevel gear set; 307. Handle; 4. 1. Mounting plate; 5. Sliding plate; 6. Sliding groove; 7. Baffle; 8. Rotating plate; 9. Drive gear; 10. Guide block; 11. Guide groove; 12. Transmission gear; 13. Brush plate; 14. Expansion chamber; 15. Raised shell; 16. Compression spring; 17. Feedback block; 18. Clamping plate; 19. Reset spring; 20. Insertion rod; 21. Insertion hole; 22. Dividing plate; 23. Vertical rod; 24. Vertical hole; 25. Guide rail groove; 26. Roller; 27. Insertion plate. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0040] Example 1

[0041] like Figure 1 - Figure 9 As shown, the dynamic air pollution monitoring device proposed in Embodiment 1 of this application includes a housing 1, which houses a PM2.5 sensor, a VOCs sensor, and a receiver for an optical sensor. The receivers of the PM2.5 sensor, VOCs sensor, and optical sensor are connected to an information terminal. In use, the aforementioned sensors detect the monitoring location, and the received data is transmitted to a terminal computer for analysis via the sensor receivers. The device also includes:

[0042] A vertical tube 2, mounted on the housing 1, has an opening facing vertically upward. Multiple side tubes 201 are mounted on the vertical tube 2. A cover 202 is hinged to the opening of each side tube 201. The cover 202 is used to block or unblock the opening of the side tube 201. The hinge point of the cover 202 is located vertically upward, allowing it to fall under gravity in its normal state, thus blocking the opening of the side tube 201. A push rod 204 is slidably mounted inside the vertical tube 2 via a connecting spring 203. An inclined plate is mounted on the push rod 204. Block 205, an exhaust fan 206 is installed on the top of the vertical pipe 2. The exhaust fan 206 is used to generate airflow from inside the vertical pipe 2 to outside the vertical pipe 2. The exhaust fan 206 is located at the opening of the vertical pipe 2. When the inclined block 205 slides, it will drive the push rod 204 to slide, which will push the cover 202 to open the cover 202 and remove the obstruction to the opening of the side pipe 201. At this time, by the action of the exhaust fan 206, the external airflow can enter the vertical pipe 2 through the side pipe 201 and be discharged from the opening of the vertical pipe 2.

[0043] The driving component 3 is installed inside the vertical pipe 2. The driving component 3 includes a threaded rod 301 rotatably installed inside the vertical pipe 2. A bevel gear set 306 is installed inside the vertical pipe 2. One bevel gear of the bevel gear set 306 is rotatably installed inside the vertical pipe 2. A handle 307 is rotatably installed on the handle 307, which passes through the vertical pipe 2 and rotatably engages with the vertical pipe 2. The other bevel gear is installed on the threaded rod 301. A disc is installed at the free end of the handle 307. A rod is eccentrically installed on the disc. In use, the monitoring personnel rotate the rod to make the handle 307 rotate, which in turn causes the threaded rod 301 to rotate through the transmission of the bevel gear set 306.

[0044] A receiving shell 302 is threadedly connected to the threaded rod 301. A sliding rod 303 that slides with the receiving shell 302 is installed inside the vertical tube 2. The PM2.5 sensor, VOCs sensor and optical sensor are all installed inside the receiving shell 302. The receiving shell 302 has a channel for receiving the sliding rod 303. In use, when the threaded rod 301 rotates, it drives the receiving shell 302 to move. At the same time, the sliding rod 303 restricts the inner wall of the channel, limiting the tendency of the receiving shell 302 to rotate with the threaded rod 301, so that the receiving shell 302 can move vertically in the vertical tube 2 with the rotation of the threaded rod 301.

[0045] The housing 302 has an air inlet 304 and an air outlet 305. The axis of the air inlet 304 is parallel to the axis of the side tube 201, and the axis of the air outlet 305 is coaxial with the axis of the vertical tube 2. When the housing 302 abuts against the inclined block 205, the push rod 204 abuts against the cover 202 through the guide of the inclined surface on the inclined block 205, so that the cover 202 releases the obstruction of the side tube 201. The axis of the air inlet 304 is in the horizontal direction, and the axis of the air outlet 305 is in the vertical direction. A tube body is installed on the housing 302, and the tube body forms the air inlet 304.

[0046] When the device is in normal operation, the housing 302 is positioned inside the vertical pipe 2, higher than the highest side pipe 201. When the device needs to be used, it is moved to the monitoring location. By turning the handle 307, the threaded rod 301 moves the housing 302 downwards, causing the pipe on the housing 302 to abut against the inclined block 205. This causes the cover 202 at this point to be pushed open by the push rod 204. At this time, the exhaust fan 206 draws in external airflow into the vertical pipe 2, which then enters the housing 302 through the air inlet 304. The air then flows through the air outlet 305 towards the exhaust fan 206 and is drawn in by the exhaust fan. 206 is discharged. During the process, the pollutants in the air are monitored by the aforementioned sensors. When the threaded rod 301 continues to rotate and drives the housing 302 to move downward, the housing 302 releases its resistance to the inclined block 205. The connecting spring 203 resets and drives the push rod 204 to release its obstruction of the cover 202. The cover 202 resets by gravity. During the process of the housing 302 moving to the next side tube 201, the air that was just drawn into the vertical tube 2 is discharged by the suction of the exhaust fan 206, which reduces the influence of the previous gas on the gas detection of the next side tube 201 and increases the monitoring accuracy of the device.

[0047] Compared with existing technologies, in use, the handle 307 drives the threaded rod 301, which in turn moves the housing 302 downward. This causes the housing 302 to gradually push the inclined block 205, which in turn causes the inclined block 205 to drive the push rod 204 to abut against the cover 202. This releases the cover 202 from obstructing the opening of the side tube 201. The exhaust fan 206 allows the airflow from the outside to enter the housing 302 through the air inlet 304, and then be drawn out of the vertical tube 2 through the air outlet 305 by the exhaust fan 206. As the housing 302 gradually moves downward, it drives the various sensors to detect at different heights, thereby completing the monitoring of the monitoring location and increasing the accuracy of the monitoring.

[0048] Example 2

[0049] like Figure 2 , Figure 3 and Figure 9As shown, Embodiment 2 further discloses the vertical tube 2, housing 1 and driving component 3 based on Embodiment 1. In Embodiment 2, a mounting plate 4 is installed on the push rod 204, a sliding plate 5 is installed on the mounting plate 4, and a sliding groove 6 is provided on the sliding plate 5. The inclined block 205 is slidably installed in the sliding groove 6. The length direction of the sliding groove 6 is located in the vertical direction. The sliding groove 6 passes through the sliding plate 5, so that the inclined block 205 can slide in the sliding groove 6 in the vertical direction and also slide in the horizontal direction.

[0050] A baffle 7 is installed on the mounting plate 4 to block the opening of the sliding groove 6. The length of the baffle 7 is shorter than the length of the sliding groove 6. When the inclined block 205 contacts the baffle 7, the inclined block 205 can only slide along the length direction of the sliding groove 6. A rotating plate 8 is hinged on the sliding plate 5. The rotating plate 8 is higher than the baffle 7, so that when the inclined block 205 slides to the point of contacting the rotating plate 8, the inclined block 205 can slide not only along the length direction of the sliding groove 6, but also along the depth direction of the sliding groove 6. The baffle 7 is located at the bottom of the sliding groove 6.

[0051] Under normal conditions, the inclined block 205, under the influence of gravity, rests at the bottom of the sliding groove 6, with its end in contact with the baffle 7. At this time, when the receiving shell 302 moves from top to bottom, it directly abuts against the inclined block 205, causing the push rod 204 to abut against the cover 202, opening the cover 202. After monitoring at a location is completed, the reverse threaded rod 301 causes the receiving shell 302 to move upwards and reset. The pipe of the receiving shell 302 then contacts the bottom of the inclined block 205, pushing it upwards within the sliding groove 6, causing the inclined block 205 to slide to the rotating plate 8. When the inclined block 205 slides to its maximum limit within the sliding groove 6, the receiving shell 302 continues to slide upwards, and the opening of the receiving shell 302 continues to abut against the inclined block 205. The arc shape guides the inclined block 205, causing it to abut against the rotating plate 8 and rotate. Simultaneously, the inclined block 205 slides horizontally to make way for the receiving shell 302. At this point, while the inclined block 205 releases its contact with the receiving shell 302, it does not cause the push rod 204 to slide. Even if the push rod 204 slides due to friction, the applied force is insufficient to push the cover 202 open. This design allows the covers 202 to open one by one as the receiving shell 302 moves downwards, and prevents them from opening when the receiving shell 302 returns to its original position. This prevents excessive air at different heights within the vertical tube 2, increasing the accuracy of the device during monitoring.

[0052] like Figure 4 and Figure 6As shown, in Embodiment 2, the housing 302 includes an integrally formed main housing 3021 and a connecting housing 3022. The PM2.5 sensor, VOCs sensor, and optical sensor are installed inside the main housing 3021. The connecting housing 3022 is threadedly connected to the threaded rod 301. A drive gear 9 is rotatably mounted on the connecting housing 3022, and a guide block 10 is mounted on the drive gear 9. A guide groove 11 for accommodating the guide block 10 is provided on the threaded rod 301. A slide cylinder is slidably sleeved on the threaded rod 301 and mounted on the connecting housing 3022. The drive gear 9 and the slide cylinder are rotatably engaged by bearings. When the threaded rod 301 rotates, it abuts against the guide block 10 through the side wall of the guide groove 11, thereby driving the drive gear 9 to rotate together. When the housing 302 slides, it also drives the drive gear 9 to slide together.

[0053] A transmission gear 12, which meshes with the drive gear 9, is rotatably mounted on the main housing 3021. The transmission gear 12 has a circular cavity, and a brush plate 13 is installed inside the cavity. The brush plate 13 is used to contact the inner wall of the air outlet 305. In use, when the drive gear 9 rotates together with the threaded rod 301, the drive gear 9 meshes with the transmission gear 12, which also drives the transmission gear 12 to rotate. This causes the brush plate 13 in the cavity to make a circular motion around the axis of the air outlet 305, so that the brush plate 13 scrapes the inner wall of the air outlet 305, reducing the possibility of the air outlet 305 being blocked by dust in the air, thereby increasing the practicality of the device.

[0054] like Figure 7 and Figure 8 As shown, in Embodiment 2, a raised shell 15 is installed on the vertical pipe 2 to form an expansion cavity 14 inside the vertical pipe 2. A feedback block 17 is slidably installed inside the expansion cavity 14 via a compression spring 16. The feedback block 17 is used to abut against the receiving shell 302. The diameter of the vertical pipe 2 at the raised shell 15 is larger than the diameter elsewhere, which also makes the inner diameter of the expansion cavity 14 larger than the inner diameter of the vertical pipe 2. An inclined surface is provided on the feedback block 17. When the receiving shell 302 abuts against it, the inclined surface guides the feedback block 17, causing the feedback block 17 to slide into the expansion cavity 14 to make way for the receiving shell 302. With the above settings, when the receiving shell 302 moves to the air inlet 304 and aligns with the side pipe 201, the bottom of the receiving shell 302 contacts the feedback block 17. At this time, if the threaded rod 301 wants to continue to rotate, there will be a more obvious resistance feedback, prompting the operator to rotate to the correct position, which increases the convenience of the device during use.

[0055] The vertical pipe 2 has a plate installed in the direction of the exhaust fan 206 to cover the housing 302. When the housing 302 moves upward and contacts the plate, it moves back to its initial position, which alerts the operator. This also reduces the possibility of the housing 302 being damaged due to excessive movement and contact with the exhaust fan 206, thus increasing the practicality of the device.

[0056] like Figure 5 , Figure 7 and Figure 8 As shown, in Embodiment 2, the vertical tube 2 includes a fixing plate 207 and a surrounding plate 208. The fixing plate 207 is fixedly installed on the housing 1, and the surrounding plate 208 is slidably inserted into the housing 1. When the surrounding plate 208 slides to contact the fixing plate 207, a complete cavity is formed inside the surrounding plate 208 and the fixing plate 207. Both the fixing plate 207 and the surrounding plate 208 are arc-shaped plates. When the surrounding plate 208 is connected to the fixing plate 207, the two form a complete vertical tube 2, and the raised shell 15 is also divided into two parts, one part is installed on the surrounding plate 208, and the other part is located on the fixing plate 207.

[0057] A clamping plate 18 is installed on the raised shell 15 located on the fixed plate 207. The clamping plate 18 is used to accommodate the raised shell 15 located on the surrounding plate 208. An insertion rod 20 is slidably installed on the clamping plate 18 via a return spring 19. The raised shell 15 located on the surrounding plate 208 has an insertion hole 21 for accommodating the insertion rod 20. The clamping plate 18 includes an upper plate and a lower plate, which are used to clamp and accommodate the upper and lower ends of the raised shell 15, so that when the surrounding plate 208 slides to connect with the fixed plate 207, the clamping plate 18 restricts the vertical sliding of the surrounding plate 208. During the process of sliding 08 to contact the fixed plate 207, the sliding insertion rod 20 makes way for the raised shell 15 on the surrounding plate 208. When the surrounding plate 208 slides into place, the insertion rod 20 is released, so that the return spring 19 pulls the insertion rod 20 to insert into the insertion hole 21, which restricts the horizontal movement of the surrounding plate 208, so that the surrounding plate 208 and the fixed plate 207 are connected and can form a complete tube. In use, by disassembling the vertical tube 2, the inner wall of the vertical tube 2 can be exposed, which is convenient for cleaning the inside and increases the practicality of the device.

[0058] like Figure 5 , Figure 7 and Figure 9As shown, in Embodiment 2, the enclosure 208 is divided into multiple sub-plates 22. Vertical rods 23 are installed on the sub-plates 22, and vertical holes 24 are opened on the sub-plates 22 to accommodate the vertical rods 23 on adjacent sub-plates 22. In use, the enclosure 208 is also divided into multiple small parts by the sub-plates 22, and the longer enclosure 208 is disassembled into shorter parts, which further increases the convenience of cleaning the vertical pipe 2 and increases the practicality of the device. When installation is required, the vertical rods 23 on adjacent sub-plates 22 are inserted into the vertical holes 24 on adjacent sub-plates 22, and multiple sub-plates 22 are stacked together. The sliding enclosure 208 is slid to the fixed plate 207. When it moves to contact the clamping plate 18, the tendency of multiple sub-plates 22 to move away from each other is restricted, which increases the stability between the sub-plates 22 in use.

[0059] Example 3

[0060] like Figure 1 - Figure 9 As shown, Embodiment 3 further discloses this application based on Embodiment 2. In Embodiment 3, the cover 202 is made of magnetic material, and the side tube 201 is made of iron or other metal material. Under normal conditions, the cover 202 is connected to the side tube 201 by magnetic force, so that the cover 202 will not be easily opened when the device is in use, which increases the stability of the cover 202 during use. When the housing 302 is located in one of the side tubes 201 for monitoring, the possibility of external airflow entering the vertical tube 2 through other side tubes 201 and causing errors in the monitoring results is reduced. Moreover, when the housing 302 moves upward, the force of the push rod 204 sliding due to the friction of the inclined block 205 is not enough to open the cover 202, which further increases the accuracy of the device during monitoring.

[0061] In embodiment three, the housing 1 is provided with a guide rail groove 25, and the bottom of the lowest partition plate 22 is equipped with a roller 26 that is tactilely connected to the guide rail groove 25. When the partition plate 208 is slidably inserted, the roller 26 rolls in the guide rail groove 25, which reduces the friction between the partition plate 208 and the housing 1, increases the convenience of the partition plate 208 when moving to the fixed plate 207, and increases the convenience of the partition plate 208 when sliding.

[0062] In Embodiment 3, a mounting plate 27 is threadedly connected to the housing 1 via bolts. The mounting plate 27 is inserted into the guide rail groove 25 to restrict the movement of the roller 26 within the guide rail groove 25. When installing the device, to facilitate installation, the device can be laid flat so that the vertical tube 2 is in a horizontal direction. The surrounding plate 208 is first slid to a position close to the fixed plate 207. By inserting the mounting plate 27 into the guide rail groove 25, the tendency of the surrounding plate 208 to move away from the fixed plate 207 is restricted, and the surrounding plate 208 is further pushed to slide towards the fixed plate 207. The sliding mounting rod 20 is inserted into the mounting hole 21. Then, the mounting plate 27 is connected to the housing 1 via bolts. Finally, the device is straightened. The above arrangement reduces the possibility of the surrounding plate 208 shaking during installation and increases the convenience of device installation.

[0063] like Figure 10 As shown, this application also provides a dynamic air pollution monitoring method, which is applicable to any of the dynamic air pollution monitoring devices described above, and in some embodiments, further includes:

[0064] S1. Transport the casing 1 to the monitoring location using a trolley or other handling equipment;

[0065] S2. During monitoring, the threaded rod 301 drives the housing 302, causing the PM2.5 sensor, VOCs sensor and optical sensor to be positioned at different heights for monitoring.

[0066] S3. Move the monitoring device at the same test location and perform monitoring, and take multiple samples at the same test location;

[0067] S4. Transmit the test data to the information terminal and analyze the data. The information terminal is equipped with a GIS platform. After the data is collected, data fusion technology is used on the air pollution monitoring data to achieve high-efficiency data exchange of massive data, automatic detection and correction of erroneous data, and dynamic monitoring of system operation. It realizes a fusion tool that integrates cleaning, summarizing, transforming and uploading, which greatly improves the efficiency of air pollution data fusion and the convenience of data governance.

[0068] Intelligent monitoring technology that enables edge computing of gridded multidimensional data can process massive amounts of monitoring data at the edge and establish a deep neural network model to intelligently identify and track pollutants.

[0069] Establishing a multivariate air pollution research mechanism based on a GIS platform and building a multi-weight decision control model can effectively obtain the intrinsic relationship between the spatiotemporal dynamic changes of air pollutants and environmental situation information, thereby obtaining air pollution forecasting, early warning reasoning and control technologies.

[0070] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dynamic air pollution monitoring device, comprising a housing (1) in which receivers for a PM2.5 sensor, a VOCs sensor, and an optical sensor are installed, and the receivers for the PM2.5 sensor, the VOCs sensor, and the optical sensor are connected to an information terminal for signal transmission, characterized in that, Also includes: A vertical tube (2) is installed on the housing (1). Multiple side tubes (201) are installed on the vertical tube (2). A cover (202) is hinged to the opening of the side tube (201). The cover (202) is used to block or unblock the opening of the side tube (201). A push rod (204) is slidably installed inside the vertical tube (2) through a connecting spring (203). An inclined block (205) is installed on the push rod (204). An exhaust fan (206) is installed at the top of the vertical tube (2). The exhaust fan (206) is used to generate airflow from inside the vertical tube (2) to outside the vertical tube (2). A driving component (3) is installed inside the vertical tube (2). The driving component (3) includes a threaded rod (301) rotatably installed inside the vertical tube (2). A bevel gear set (306) is installed inside the vertical tube (2). One bevel gear of the bevel gear set (306) is rotatably installed inside the vertical tube (2) and a handle (307) that rotatably passes through the vertical tube (2) is installed on it. The other bevel gear is installed on the threaded rod (301). A receiving shell (302) is threadedly connected to the threaded rod (301). A sliding fit is installed inside the vertical tube (2) with the receiving shell (302). The sliding rod (303), PM2.5 sensor, VOCs sensor and optical sensor are all installed in the housing (302). The housing (302) has an air inlet (304) and an air outlet (305). The axis of the air inlet (304) is parallel to the axis of the side tube (201), and the axis of the air outlet (305) is coaxial with the axis of the vertical tube (2). When the housing (302) abuts against the inclined block (205), the push rod (204) abuts against the cover (202) so that the cover (202) releases the obstruction of the side tube (201).

2. The dynamic air pollution monitoring device according to claim 1, characterized in that, A mounting plate (4) is installed on the push rod (204), and a sliding plate (5) is installed on the mounting plate (4). A sliding groove (6) is opened on the sliding plate (5). An inclined block (205) is slidably installed in the sliding groove (6). A baffle (7) is installed on the mounting plate (4) to block the opening of the sliding groove (6). The length of the baffle (7) is shorter than the length of the sliding groove (6). When the inclined block (205) contacts the baffle (7), the inclined block (205) can only slide along the length direction of the sliding groove (6). A rotating plate (8) is hinged on the sliding plate (5). The rotating plate (8) is higher than the baffle (7). When the inclined block (205) slides to the point of contact with the rotating plate (8), the inclined block (205) can slide not only along the length direction of the sliding groove (6) but also along the depth direction of the sliding groove (6).

3. The dynamic air pollution monitoring device according to claim 2, characterized in that, The housing (302) includes an integrally formed main housing (3021) and a connecting housing (3022). The PM2.5 sensor, VOCs sensor and optical sensor are installed in the main housing (3021). A drive gear (9) is rotatably mounted on the connecting housing (3022). A guide block (10) is mounted on the drive gear (9). A guide groove (11) for accommodating the guide block (10) is opened on the threaded rod (301). A transmission gear (12) that meshes with the drive gear (9) is rotatably mounted on the main housing (3021). A circular cavity is opened on the transmission gear (12). A brush plate (13) is installed in the circular cavity. The brush plate (13) is used to contact the inner wall of the air outlet (305).

4. The dynamic air pollution monitoring device according to claim 3, characterized in that, A raised shell (15) is installed on the vertical tube (2) so that an expansion cavity (14) is formed inside the vertical tube (2). A feedback block (17) is slidably installed inside the expansion cavity (14) by a compression spring (16). The feedback block (17) is used to abut against the receiving shell (302).

5. The dynamic air pollution monitoring device according to claim 4, characterized in that, The vertical tube (2) includes a fixed plate (207) and a surrounding plate (208). The fixed plate (207) is fixedly installed on the housing (1), and the surrounding plate (208) is slidably inserted into the housing (1). When the surrounding plate (208) slides to contact the fixed plate (207), a complete cavity is formed inside the surrounding plate (208) and the fixed plate (207). A clamping plate (18) is installed on the raised shell (15) on the fixed plate (207). The clamping plate (18) is used to accommodate the raised shell (15) on the surrounding plate (208). An insertion rod (20) is slidably installed on the clamping plate (18) through a return spring (19). An insertion hole (21) for accommodating the insertion rod (20) is opened on the raised shell (15) on the surrounding plate (208).

6. The dynamic air pollution monitoring device according to claim 5, characterized in that, The enclosure (208) is divided into multiple sub-plates (22), each sub-plate (22) is equipped with a vertical rod (23), and the sub-plate (22) is provided with vertical holes (24) for accommodating the vertical rods (23) on adjacent sub-plates (22).

7. The dynamic air pollution monitoring device according to claim 6, characterized in that, The cover (202) is made of magnetic material, and the side tube (201) is made of iron or other metal material.

8. The dynamic air pollution monitoring device according to claim 7, characterized in that, The housing (1) has a guide rail groove (25), and the bottom of the lowest partition plate (22) is equipped with a roller (26) that is tactilely connected to the guide rail groove (25).

9. The dynamic air pollution monitoring device according to claim 8, characterized in that, The housing (1) is connected to an insertion plate (27) by bolt thread. The insertion plate (27) is used to insert into the guide rail groove (25) so that the movement of the roller (26) in the guide rail groove (25) is restricted.

10. A method for monitoring dynamic air pollution, applicable to the dynamic air pollution monitoring device according to any one of claims 1-9, characterized in that, include: S1. Transport the casing (1) to the monitoring location using a trolley or other handling tools; S2. During monitoring, the housing (302) is driven by the threaded rod (301) so that the PM2.5 sensor, VOCs sensor and optical sensor are at different heights for monitoring. S3. Move the monitoring device at the same test location and perform monitoring, and take multiple samples at the same test location; S4. Transmit the test data to the information terminal and analyze the data.

Images