Continuous automatic monitoring device for particulate matters in ambient air

Abstract

The invention relates to the technical field of air quality monitoring, and one embodiment of the invention provides an environment air particulate matter continuous automatic monitoring device which comprises a sampling maintenance mechanism, a first dustproof cover and a grading adjusting mechanism, a sealing connecting assembly is arranged between the sampling maintenance mechanism and a detection box, and a flow guide pipe is fixedly connected to the sampling maintenance mechanism; the sampling maintenance mechanism is used for cleaning and maintaining the interior of the flow guide pipe, the first dustproof cover is slidably connected to the end, away from the sampling maintenance mechanism, of the flow guide pipe, the grading adjustment mechanism is used for adjusting gas sampling, and the sealing connection assembly is fixedly connected to the detection box. The detection box is connected with the sampling maintenance mechanism through the sealing connection assembly, the sealing connection assembly is used for pushing the sampling maintenance mechanism to be connected with the flow guide pipe, and by means of the technical scheme, the technical problem that in the prior art, an air detection device is difficult to carry out targeted sampling or dust prevention when dealing with extreme weather is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of air quality monitoring, and in particular, to a device for continuous automatic monitoring of ambient air particulate matter. Background Art

[0002] An air quality monitoring device is a device used to detect the air quality of the external environment. It is usually fixed in the external environment and detects and analyzes the particulate matter in the air after sampling. It can automatically detect the air and reduce the labor cost of air detection. Since the air quality monitoring device is set outside, the air needs to be sucked into the device for testing, so the air sucked into the device needs to be pre-processed.

[0003] At the air inlet of the existing air quality detection device, there are often filters, filters, drying devices, etc. to pre-treat impurities or water vapor in the gas. The treated air then enters the equipment. However, in an environment with a changeable climate, when encountering heavy rainstorms, storms with swirling sand and dust, a large amount of water in the air may enter the equipment and be difficult to dry. The sand and dust may cause blockage of filtering devices such as filters. It is difficult to carry out targeted air sampling when dealing with different weather conditions, so that manual cleaning of the filtering equipment is required later, which easily makes it difficult for the detection device to perform automatic continuous detection, or leads to inaccurate detection. Summary of the Invention

[0004] To overcome the above-mentioned defects, the embodiments of the present disclosure provide a continuous automatic monitoring device for ambient air particulate matter, which is used to solve the technical problem in the prior art that air detection devices are difficult to perform targeted sampling or dust prevention when dealing with extreme weather.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a continuous automatic monitoring device for ambient air particulate matter, including a detection box, which is provided with a sampling pump, an anemometer and a wind vane, and also includes a sampling maintenance mechanism, a dust cover and a graded adjustment mechanism. The sampling maintenance mechanism is fixedly connected to the top of the detection box, and a sealing connection assembly is provided between the sampling maintenance mechanism and the detection box. A guide tube is fixedly connected to the sampling maintenance mechanism, and the sampling maintenance mechanism is used to clean and maintain the inside of the guide tube. A dust cover is slidably connected to the end of the guide tube away from the sampling maintenance mechanism. The graded adjustment mechanism is fixedly connected in the guide tube, the graded adjustment mechanism is fixedly connected to the dust cover, and the graded adjustment mechanism is used to adjust the sampling of the gas. The sealing connection assembly is fixedly connected to the detection box, and the detection box is connected to the sampling maintenance mechanism through the sealing connection assembly, and the sealing connection assembly is used to push the sampling maintenance mechanism to be connected to the guide tube.

[0006] The guide tube is provided with a sliding column, a second dust cover and a storage bin. There are multiple sliding columns, and the multiple sliding columns are fixedly connected to the guide tube in a circular shape. The multiple sliding columns pass through the first dust cover. The second dust cover is fixedly connected to the sliding column at one end away from the guide tube. The first dust cover is provided between the second dust cover and the guide tube. The storage bin is opened in the center of the second dust cover. The storage bin is detachably connected to the graded adjustment mechanism.

[0007] The dust cover is provided with a filter, a baffle and a push ring, the filter is fixedly connected to the top of the dust cover, the filter is slidably connected in the storage bin, the baffle is fixedly connected to the bottom of the dust cover, the baffle is slidably connected to the guide pipe, the push ring is fixedly connected to the dust cover, the push ring is provided inside the guide pipe, and the push ring is slidably connected to the graded adjustment mechanism.

[0008] The grading adjustment mechanism includes a driving cylinder 1, a slide, a sliding rod, a sampling cutter and a spring. The driving cylinder 1 is fixedly installed in the guide tube, the output end of the driving cylinder 1 faces upward, the slide is fixedly connected to the output end of the driving cylinder 1, the sliding rod is slidably connected to the slide, the slide passes through the push ring, the sampling cutter is fixedly connected to one end of the slide away from the slide, the sampling cutter slides in the filter, the sampling cutter can slide into the storage bin, the push ring slides between the sampling cutter and the slide, and the spring, the push ring and the sampling cutter are respectively fixedly connected to the two ends of the spring.

[0009] When the filter screen and the sampling cutter are both located between the first dust cover and the second dust cover, the spring is in a compressed state, and at this time, the output end of the first driving cylinder is in a contracted state.

[0010] The sampling maintenance mechanism includes a maintenance box, a fixing frame, a second driving cylinder, a drying drum and a cleaning assembly. The maintenance box is fixedly installed on the detection box, the fixing frame is slidably connected to the maintenance box, the second driving cylinder is fixedly installed on the maintenance box, the output end of the second driving cylinder is fixedly connected to the fixing frame, the drying drum is fixedly connected to the fixing frame, a heating wire is provided inside the drying drum, the cleaning assembly is fixedly connected to the fixing frame, the two ends of the cleaning assembly are respectively detachably connected to the sealing connection assembly and the guide tube, and the cleaning assembly is used to clean the inside of the guide tube.

[0011] The cleaning assembly includes a cleaning cylinder, an air supply member, an impact tooth and an air supply hole. The cleaning cylinder is fixedly connected to the fixed frame. A plurality of impact blocks are circumferentially arranged in the cleaning cylinder. The air supply member is rotatably connected to the cleaning cylinder. An air supply pipe is connected to the bottom of the air supply member. The air supply pipe passes through the maintenance box and is connected to the external air supply equipment. There are a plurality of impact teeth, and the plurality of impact teeth are circumferentially fixedly connected to the air supply member. The impact teeth can contact the impact blocks. There are a plurality of air supply holes, and the plurality of air supply holes are circumferentially opened on the air supply member. The air supply holes are threaded.

[0012] The sealing connection assembly includes an air intake pipe, a docking nozzle, a drive cylinder three and an extrusion ring. The air intake pipe is fixedly connected to the detection box, the docking nozzle is slidably connected to the air intake pipe, the side of the docking nozzle close to the detection box is set to an inclined shape, and the end of the docking nozzle away from the detection box is detachably connected to the cleaning cylinder or the drying cylinder, the drive cylinder three is fixedly installed on the detection box, the extrusion ring is fixedly connected to the output end of the drive cylinder three, and the extrusion ring can contact the docking nozzle.

[0013] The beneficial effects of the embodiments of the present disclosure are: 1. In the present invention, the sliding design of the dust cover allows the recent speed to be controlled. On the other hand, when the environment is harsh, the gas can be blocked from entering the guide tube to prevent impurities such as sand from clogging the filter and other devices used to filter the gas, thereby increasing the maintenance time and cost. 2. In the present invention, by providing a graded adjustment mechanism, the sliding of the dust cover 1 in the guide tube can be adjusted. At the same time, whether to perform sampling and the size of the air circulation channel can be adjusted according to the weather conditions, thereby realizing automatic control according to the weather conditions and further realizing automatic continuous detection, avoiding the need for maintenance and suspension of use after bad weather; 3. In the present invention, by setting up a sampling maintenance mechanism, the guide tube can be quickly cleaned when cleaning is needed. By replacing the cylinder inside, it is possible to achieve convenient cleaning while reducing the equipment space. By setting up a dust cover, the size of the air intake channel, whether air is intaked, and how many times the air needs to be filtered can be adjusted by sliding the dust cover. Then, automatic regulation and detection can be performed for various weather environments, thereby improving the self-protection of the equipment in various weather conditions, reducing the maintenance cost on the one hand, and improving the ability to perform automatic air detection in various environments on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly describes the drawings required for use in describing the embodiments of the present disclosure. Obviously, the drawings described below are merely some exemplary embodiments of the present disclosure. Those skilled in the art can, without inventive effort, derive other drawings based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention as a whole; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the guide pipe, the first dust cover and the second dust cover in the present invention; Figure 4 It is a schematic diagram of the partial internal cross-sectional structure of the push ring and the slide cylinder in the present invention; Figure 5 This is a schematic diagram of a partial internal cross-sectional structure of the maintenance box of the present invention; Figure 6 This is a schematic diagram of the internal cross-sectional structure of the drying drum and the cleaning drum in the present invention; Figure 7 This is a schematic diagram of the internal cross-sectional structure of the air delivery member and the cleaning cylinder in the present invention; Figure 8 Schematic diagram of the partial structure of the sealing connection assembly in the present invention; Figure 9 It is a partial cross-sectional structural diagram of the extrusion ring and the docking nozzle in the present invention.

[0016] In the figure: 1. Detection box; 2. Anemometer; 3. Wind vane; 4. Draft tube; 5. Dust cover 1; 6. Slide column; 7. Dust cover 2; 8. Storage compartment; 9. Filter; 10. Baffle; 11. Push ring; 12. Drive cylinder 1; 13. Slide cylinder; 14. Slide rod; 15. Sampling cutter; 16. Spring; 17. Maintenance box; 18. Fixing bracket; 19. Drive cylinder 2; 20. Drying cylinder; 21. Cleaning cylinder; 22. Impact block; 23. Air supply part; 24. Impact tooth; 25. Air supply hole; 26. Inlet pipe; 27. Docking nozzle; 28. Drive cylinder 3; 29. ​​Extrusion ring. DETAILED DESCRIPTION

[0017] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0018] To simplify the drawings, only the parts relevant to the disclosure are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0019] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0020] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present disclosure.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figures 1 to 9 As shown, it shows an automatic continuous monitoring device for ambient air particulate matter in an embodiment of the present disclosure, including a detection box 1, on which a sampling pump, an anemometer 2 and a wind vane 3 are provided, as well as a sampling maintenance mechanism, a dust cover 5 and a graded adjustment mechanism. The sampling maintenance mechanism is fixedly connected to the top of the detection box 1, and a sealing connection component is provided between the sampling maintenance mechanism and the detection box 1. A guide tube 4 is fixedly connected to the sampling maintenance mechanism, and the sampling maintenance mechanism is used to clean and maintain the inside of the guide tube 4. The dust cover 5 is slidably connected to the end of the guide tube 4 away from the sampling maintenance mechanism. The graded adjustment mechanism is fixedly connected to the guide tube 4, and the graded adjustment mechanism and the dust cover are connected. -5 is fixedly connected, and the graded adjustment mechanism is used to adjust the sampling of the gas. The sealed connection component is fixedly connected to the detection box 1, and the detection box 1 is connected to the sampling maintenance mechanism through the sealed connection component. The sealed connection component is used to push the sampling maintenance mechanism to be connected to the guide tube 4. In this application, the graded adjustment mechanism is set in the guide tube 4, so that according to the weather conditions, it is possible to adjust whether the air can enter the equipment and whether the filter 9 is in contact with the outside air, and it can be cleaned at any time, thereby achieving the purpose of adjusting the air filtration condition in bad weather, thereby protecting the filter device used to pre-treat the air and reducing the number of times the equipment requires manual maintenance.

[0024] like Figures 1 to 4As shown, the guide tube 4 is provided with a sliding column 6, a dust cover 2 7 and a storage bin 8, a plurality of sliding columns 6 are provided, and a plurality of sliding columns 6 are fixedly connected to the guide tube 4 in a circular shape, a plurality of sliding columns 6 pass through the dust cover 1 5, the dust cover 2 7 is fixedly connected to the end of the sliding column 6 away from the guide tube 4, the dust cover 1 5 is arranged between the dust cover 2 7 and the guide tube 4, the storage bin 8 is opened in the center of the dust cover 2 7, the storage bin 8 is detachably connected to the graded adjustment mechanism, a filter screen 9, a baffle 10 and a push ring 11 are provided on the dust cover 1 5, the filter screen 9 is fixedly connected to the top of the dust cover 1 5, the filter screen 9 is slidably connected to the storage bin 8, the baffle 10 is fixedly connected to the bottom of the dust cover, the baffle 10 is slidably connected to the guide tube 4, the push ring 11 is fixedly connected to the dust cover, the push ring 11 is arranged inside the guide tube 4, and the push ring 11 It is slidably connected to the graded adjustment mechanism. When the dust cover and the guide tube 4 are connected, the filter screen 9 comes into contact with the air. When the dust cover 2 7 is fitted with the dust cover 1 5, the filter screen 9 extends into the storage bin 8. At this time, the baffle 10 is between the dust cover 1 5 and the guide tube 4. At this time, the ambient air in the guide tube 4 cannot enter. When the sampling cutter 15 and the filter screen 9 are both between the dust cover 2 7 and the guide tube 4, the air can pass through the filter screen 9 and then pass through the sampling cutter 15 and then enter the guide tube 4. When encountering bad weather such as strong winds, the filter screen 9 and the sampling cutter 15 can be pushed into the storage bin 8 for protection. When only the filter screen 9 needs to be used, the sampling cutter 15 can be adjusted to be in the storage bin 8, and the ambient air enters the guide tube 4 through the filter screen 9, thereby adjusting the number of filter layers through which the air passes.

[0025] like Figure 3~Figure 4As shown, the graded adjustment mechanism includes a driving cylinder 12, a slide cylinder 13, a sliding rod 14, a sampling cutter 15 and a spring 16. The driving cylinder 12 is fixedly installed in the guide tube 4, and the output end of the driving cylinder 12 faces upward. The slide cylinder 13 is fixedly connected to the output end of the driving cylinder 12, and the sliding rod 14 is slidably connected to the slide cylinder 13. The slide rod 14 passes through the pushing ring 11, and the sampling cutter 15 is fixedly connected to the end of the slide cylinder 13 away from the slide cylinder 13. The sampling cutter 15 slides in the filter screen 9 and can slide into the storage bin 8. The pushing ring 11 slides between the sampling cutter 15 and the slide cylinder 13. The spring 16 pushes the ring 11 and the sampling cutter 15 to be fixedly connected to the two ends of the spring 16 respectively. When the filter screen 9 and the sampling cutter 15 are both between the dust cover 15 and the dust cover 2 7, the spring 16 is in a compressed state. At this time, the output end of the driving cylinder 12 is in a contracted state, and the sliding rod 14 extends. When the filter screen 9 and the sampling cutter 15 are both between the guide tube 4 and the dust cover 7, the output end of the driving cylinder 12 is extended, and the spring 16 pushes the slide rod 14 and the sampling cutter 15 to slide in the direction away from the driving cylinder 12, and the dust cover 5 does not move. When the spring 16 is extended, the sampling cutter 15 enters the storage bin 8. At this time, the output end of the driving cylinder 12 continues to extend, the slide cylinder 13 pushes the push ring 11 to move, the slide rod 14 remains stationary, the spring 16 is compressed, and the filter screen 9 slides toward the storage bin 8. The slide rod 14, the slide cylinder 13 and the push ring 11 are separated from each other, and the spring 16 pushes the sampling cutter 15 away from the push ring 11. The filter screen 9 and the sampling cutter 15 can be adjusted separately through the output end of the driving cylinder 12, thereby controlling the air processing process and the protection of the sampling cutter 15.

[0026] like Figures 5 to 7 As shown, the sampling maintenance mechanism includes a maintenance box 17, a fixing frame 18, a driving cylinder 2 19, a drying drum 20 and a cleaning assembly. The maintenance box 17 is fixedly mounted on the detection box 1, the fixing frame 18 is slidably connected to the maintenance box 17, the driving cylinder 2 19 is fixedly mounted on the maintenance box 17, the output end of the driving cylinder 2 19 is fixedly connected to the fixing frame 18, the drying drum 20 is fixedly connected to the fixing frame 18, a heating wire is provided inside the drying drum 20, the cleaning assembly is fixedly connected to the fixing frame 18, and both ends of the cleaning assembly are respectively connected to the sealing connection assembly. It is detachably connected to the guide tube 4, and the cleaning component is used to clean the inside of the guide tube 4. In this embodiment, the driving cylinder 2 19 is arranged on the side of the maintenance box 17, and the fixing frame 18 passes through the maintenance box 17 and is connected to the output end of the driving cylinder 2 19. The driving cylinder 2 19 can be arranged in various directions on the maintenance box 17 to push the sliding of the fixing frame 18. When the moisture in the air is high, the output end of the driving cylinder 2 19 extends to push the drying cylinder 20 to dock with the guide tube 4. At this time, the heating wire heats the inner sleeve of the drying cylinder 20, thereby drying the passing air.

[0027] like Figure 6-7 As shown, the cleaning assembly includes a cleaning cylinder 21, an air delivery member 23, an impact tooth 24 and an air delivery hole 25. The cleaning cylinder 21 is fixedly connected to the fixed frame 18. A plurality of impact blocks 22 are circumferentially arranged in the cleaning cylinder 21. The air delivery member 23 is rotatably connected to the cleaning cylinder 21. An air delivery pipe is connected to the bottom of the air delivery member 23. The air delivery pipe passes through the maintenance box 17 and is connected to the external air delivery equipment. A plurality of impact teeth 24 are provided, and the plurality of impact teeth 24 are circumferentially fixedly connected to the air delivery member 23. The impact teeth 24 can contact the impact block 22. A plurality of air delivery holes 25 are provided, and the plurality of air delivery holes 25 are circumferentially opened in the air delivery member 23. On the air piece 23, the air supply hole 25 is threaded. When the guide tube 4 or the filter screen 9 needs to be cleaned, the output end of the driving cylinder 21 is shortened to pull the cleaning cylinder 21 to connect with the guide tube 4. At this time, the air supply equipment supplies gas to the air supply piece 23, and the gas enters the air supply hole 25 in the air supply piece 23. Since the air supply hole 25 is threaded, the air supply piece 23 rotates in the cleaning cylinder 21, and the guide cylinder is evenly cleaned by the rotating airflow. While rotating, the impact teeth 24 contact the impact block 22, so that the cleaning cylinder 21 is repeatedly impacted to shake off the attached dust for easy discharge.

[0028] like Figures 8 and 9 As shown, the sealing connection assembly includes an air inlet pipe 26, a docking nozzle 27, a drive cylinder three 28 and an extrusion ring 29. The air inlet pipe 26 is fixedly connected to the detection box 1, and the docking nozzle 27 is slidably connected to the air inlet pipe 26. The side of the docking nozzle 27 close to the detection box 1 is set to an inclined shape, and the end of the docking nozzle 27 away from the detection box 1 is detachably connected to the cleaning cylinder 21 or the drying cylinder 20. The drive cylinder three 28 is fixedly installed on the detection box 1, and the extrusion ring 29 is fixedly connected to the output end of the drive cylinder three 28. The extrusion ring 29 can When in contact with the docking nozzle 27, the output end of the driving cylinder three 28 extends to push the extrusion ring 29 to slide toward the bottom of the docking nozzle 27. Through the contact between the extrusion ring 29 and the matching inclined surface on the docking nozzle 27, the extrusion ring 29 can push the docking nozzle 27 upward, thereby pushing the cleaning cylinder 21 or the drying cylinder 20 to connect with the guide pipe 4 more tightly. When the cleaning cylinder 21 and the drying cylinder 20 slide in the maintenance box 17 to contact with the guide pipe 4, they can maintain a fit state, and the fit can be made tighter through the extrusion of the docking nozzle 27.

[0029] In some examples, when encountering bad weather, the output end of the driving cylinder 12 is extended, and the spring 16 is extended to push the sampling cutter 15 to slide into the storage bin 8. When the sampling cutter 15 enters the storage bin 8, the air can only enter the guide tube 4 through the filter 9. At this time, the output end of the driving cylinder 12 is extended to push the push ring 11 to move, compressing the spring 16. At this time, the filter 9 slides toward the storage bin 8. After the filter 9 completely enters the storage bin 8, the ambient air cannot enter the guide tube 4. When the guide tube 4 needs to be cleaned, the driving cylinder 2 19 is The output end shortens and pulls the fixing frame 18 to slide, so that the cleaning cylinder 21 is aligned with the guide tube 4. At this time, the output end of the driving cylinder three 28 extends to push the extrusion ring 29 to move and squeeze the docking nozzle 27, so that the docking nozzle 27 pushes the cleaning cylinder 21 to make close contact with the guide tube 4. At this time, the external air supply device delivers gas to the air supply part 23, and the air flow enters the cleaning cylinder 21 through the air supply hole 25, while driving the air supply part 23 to rotate, so that the air flow evenly blows the dust at various positions. At the same time, the impact tooth 24 contacts the impact block 22 to form vibration, causing the dust in the guide tube 4 to fall.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all of these should be included in the scope of the claims of the present disclosure.

Claims

1. A continuous automatic monitoring device for ambient air particulate matter, comprising a detection box (1), wherein the detection box (1) is provided with a sampling pump, an anemometer (2) and a wind vane (3), and characterized in that: Also includes: A sampling maintenance mechanism is fixedly connected above the detection box (1), a sealing connection assembly is provided between the sampling maintenance mechanism and the detection box (1), a flow guide tube (4) is fixedly connected to the sampling maintenance mechanism, and the sampling maintenance mechanism is used to clean and maintain the interior of the flow guide tube (4); A dust cover (5) is slidably connected to an end of the flow guide tube (4) away from the sampling maintenance mechanism; A graded adjustment mechanism is fixedly connected to the guide tube (4), the graded adjustment mechanism is fixedly connected to the dust cover (5), and the graded adjustment mechanism is used to adjust the sampling of the gas; The sealing connection assembly is fixedly connected to the detection box (1), and the detection box (1) is connected to the sampling maintenance mechanism via the sealing connection assembly. The sealing connection assembly is used to push the sampling maintenance mechanism to connect with the guide tube (4).

2. The continuous automatic monitoring device for ambient air particulate matter according to claim 1, characterized in that: The flow guide pipe (4) is provided with: A plurality of sliding columns (6) are provided, wherein the plurality of sliding columns (6) are fixedly connected to the guide pipe (4) in a circumferential manner, and the plurality of sliding columns (6) pass through the dust cover (5); The second dust cover (7) is fixedly connected to one end of the sliding column (6) away from the guide tube (4), and the first dust cover (5) is arranged between the second dust cover (7) and the guide tube (4); A storage bin (8) is provided in the center of the second dust cover (7), and the storage bin (8) is detachably connected to the grading adjustment mechanism.

3. The continuous automatic monitoring device for ambient air particulate matter according to claim 2, characterized in that: The dust cover (5) is provided with: A filter (9) is fixedly connected to the upper portion of the dust cover (5), and the filter (9) is slidably connected to the storage bin (8); A baffle (10) is fixedly connected below the dust cover, and the baffle (10) is slidably connected to the guide pipe (4); A push ring (11) is fixedly connected to the dust cover, the push ring (11) is arranged inside the guide tube (4), and the push ring (11) is slidably connected to the graded adjustment mechanism.

4. The device for continuous automatic monitoring of ambient air particulate matter according to claim 3, characterized in that: The hierarchical adjustment mechanism includes: A driving cylinder (12) is fixedly mounted in the guide tube (4), with the output end of the driving cylinder (12) facing upward; A slide cylinder (13) is fixedly connected to the output end of the driving cylinder (12); A sliding rod (14) is slidably connected to the sliding cylinder (13), and the sliding rod (14) passes through the pushing ring (11); A sampling cutter (15) is fixedly connected to an end of the slide rod (14) away from the slide cylinder (13), and the sampling cutter (15) slides in the filter screen (9). The sampling cutter (15) can slide into the storage bin (8); The push ring (11) slides between the sampling cutter (15) and the slide cylinder (13); The spring (16), the pushing ring (11) and the sampling cutter (15) are respectively fixedly connected to the two ends of the spring (16).

5. The device for continuous automatic monitoring of ambient air particulate matter according to claim 4, characterized in that: When the filter (9) and the sampling cutter (15) are both located between the dust cover 1 (5) and the dust cover 2 (7), the spring (16) is in a compressed state, and the output end of the driving cylinder 1 (12) is in a contracted state.

6. The device for continuous automatic monitoring of ambient air particulate matter according to claim 5, characterized in that: The sampling and maintenance mechanism includes: A maintenance box (17) is fixedly mounted on the detection box (1); A fixed frame (18) slidably connected to the maintenance box (17); A second driving cylinder (19) is fixedly mounted on the maintenance box (17), and an output end of the second driving cylinder (19) is fixedly connected to the fixing frame (18); A drying cylinder (20) is fixedly connected to the fixing frame (18), and a heating wire is provided inside the drying cylinder (20); A cleaning component is fixedly connected to the fixing frame (18), and both ends of the cleaning component are detachably connected to the sealing connection component and the guide tube (4), respectively. The cleaning component is used to clean the interior of the guide tube (4).

7. The device for continuous automatic monitoring of ambient air particulate matter according to claim 6, characterized in that: The cleaning component comprises: A cleaning cylinder (21) is fixedly connected to the fixing frame (18), and a plurality of impact blocks (22) are circumferentially arranged in the cleaning cylinder (21); An air supply member (23) is rotatably connected to the cleaning cylinder (21), an air supply pipe is connected below the air supply member (23), and the air supply pipe passes through the maintenance box (17) and is connected to an external air supply device; A plurality of impact teeth (24) are provided, wherein the plurality of impact teeth (24) are fixedly connected to the air supply member (23) in a circumferential manner, and the impact teeth (24) are capable of contacting the impact block (22); A plurality of air supply holes (25) are provided, and the plurality of air supply holes (25) are circumferentially opened on the air supply member (23), and the air supply holes (25) are threaded.

8. The device for continuous automatic monitoring of ambient air particulate matter according to claim 7, characterized in that: The sealing connection assembly comprises: An air inlet pipe (26) fixedly connected to the detection box (1); a docking nozzle (27) slidably connected to the air inlet pipe (26); a side of the docking nozzle (27) close to the detection box (1) is arranged in an inclined shape; and an end of the docking nozzle (27) away from the detection box (1) is detachably connected to the cleaning cylinder (21) or the drying cylinder (20); A third driving cylinder (28) is fixedly mounted on the detection box (1); An extrusion ring (29) is fixedly connected to the output end of the driving cylinder three (28), and the extrusion ring (29) can contact the docking nozzle (27).

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