Atmospheric particulate matter sampling splitter

Abstract

The present invention discloses an atmospheric particulate matter sampling diverter, which specifically relates to the field of atmospheric sampling technology, including a sampling tube, a horizontal diverter cover, a wireless controller, a sleeve, and a horizontal and vertical bidirectional precise sampling and diverting mechanism; wherein the horizontal and vertical bidirectional precise sampling and diverting mechanism includes a positioning motor, a sealing sleeve, a bottom positioning plate, a linkage column, a top positioning plate, and a sealing gasket sleeve. The present invention has the advantages of realizing precise diversion sampling according to a specified angle area and a specified vertical interval area according to user needs through the horizontal and vertical bidirectional precise sampling and diverting mechanism, greatly improving the accuracy of diversion sampling, thereby solving the problem that the sampling area is divided into a top surface area, a bottom surface area, and a side area, and there are sampling areas at different horizontal angles, making it difficult to realize precise horizontal and vertical diversion sampling according to the specified sampling area according to user needs, which leads to poor diversion sampling accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of atmospheric sampling, and more particularly to an atmospheric particulate matter sampling diverter. Background Art

[0002] Atmospheric particulate matter sampling diverters are crucial in atmospheric environmental monitoring. Their primary function is to divert collected particulate matter for analytical analysis, identifying its source. This helps develop targeted pollution control measures, reduce atmospheric pollutant emissions, and improve air quality.

[0003] Patent publication number CN215811805U discloses a flow-regulated sampling diverter and particulate matter sampling device. This technology utilizes a pressure compensator positioned within the diverter channel, resulting in a compact design, simple structure, and low cost. The coordinated cooperation between the temperature adjustment and pressure compensation mechanisms ensures uniform flow pressure and temperature within the measurement section of each gas path, thereby achieving uniform flow rates within the diverter channel. However, this technology also suffers from the following drawbacks.

[0004] During the sampling and diversion process of atmospheric particulate matter, although the flow rate in the diversion pipe can be made the same, in the sampling area, since the sampling area is divided into the top surface area, the bottom surface area and the side area, there are also sampling areas at different horizontal angles. This makes it difficult to achieve accurate horizontal and vertical diversion sampling according to the specified sampling area according to user needs during the sampling and diversion process, which leads to poor diversion sampling accuracy. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: an atmospheric particulate matter sampling diverter, comprising a sampling tube, a transverse diverter cover, a wireless controller and a sleeve disc, wherein the transverse diverter cover rotates inside the sampling tube, the sleeve disc is fixed on one side of the transverse diverter cover, and the bottom end of the sleeve disc is provided with a horizontal and vertical bidirectional precise sampling and diverting mechanism; the horizontal and vertical bidirectional precise sampling and diverting mechanism comprises a positioning motor arranged at the bottom end of the sleeve disc, the positioning motor is used to drive the sleeve disc to rotate, the inner wall of the transverse diverter cover is fixedly connected to a sealing sleeve, the inner wall of the sealing sleeve is fixedly connected to a bottom positioning plate, and the upper surface of the bottom positioning plate is fixedly installed with a linkage column.

[0006] The top of the linkage column is fixedly connected to a top positioning plate, and a sealing gasket is fixedly installed on the outer wall of the top positioning plate. The sealing gasket is fixedly connected to the transverse diverter cover. The top center point of the transverse diverter cover is fixedly connected to a sensing column, and an angle sensor is installed on the top of the sensing column. The sensing end of the angle sensor is fixedly connected to the sensing column.

[0007] Preferably, the sleeve is rotatably connected to the sampling barrel, the sealing sleeve and the sealing gasket are both made of rubber, the wireless controller is electrically connected to the positioning motor, the sealing gasket and the sealing sleeve are both slidably connected to the sampling barrel, and the inner wall of the sampling barrel is smooth.

[0008] During operation, the positioning motor drives the sleeve disc to rotate, which in turn drives the sealing sleeve to rotate via the transverse diverter hood. The bottom positioning plate rotates along the inner wall of the sampling tube. The linkage column drives the top positioning plate to rotate, which in turn drives the sealing gasket sleeve to rotate. The side sampling diverter plate drives the outer gasket to rotate, which in turn rotates the side sampling hose. The sensing column drives the sensing end of the angle sensor to rotate, and the angle sensor senses the angle of the sensing column.

[0009] Preferably, the upper surface of the transverse diverter cover is provided with a precise sealing sampling diverter assembly; the precise sealing sampling diverter assembly includes a sealing top gasket fixedly arranged on the upper surface of the transverse diverter cover, two sealing side gaskets fixedly connected to the other side of the transverse diverter cover, the sealing side gaskets are rotatably connected to the sampling tube, the bottom end of the transverse diverter cover is fixedly connected to a sealing bottom gasket, the sealing bottom gasket is rotatably connected to the sampling tube; the bottom end of the inner wall of the sampling tube is provided with multiple groups of sampling bottom holes, the outer wall of the sampling tube is provided with multiple groups of sampling side holes, and the top end of the sampling tube is fixedly connected to a top plate, the interior of the top plate is provided with multiple groups of sampling top holes, and the top plate is fixedly connected to the angle sensor. The sealing top gasket is rotatably connected to the top plate, and the sealing top gasket, sealing side gaskets and sealing bottom gasket are all made of rubber. The bottom end of the sleeve is rotatably connected to a docking tube, which is fixedly connected to the sampling cylinder. A pillar is installed on one side of the positioning motor, and the positioning motor and the docking tube are both fixedly connected to the pillar. A collar is provided below the positioning motor and is fixedly connected to the docking tube. A wireless controller is installed on the upper surface of the collar, and a fan is fixedly installed at the bottom end of the collar. The output end of the fan is connected to the collar, and the cross-section of the collar is circular.

[0010] When this technology is in use, the rotation of the transverse diverter hood drives the bottom seal gasket to rotate, which in turn drives the side seal gaskets to rotate. The side seal gaskets rotate along the inner wall of the sampling tube, and the top seal gasket rotates along the lower surface of the top plate. When the angle value sensed by the angle sensor for the sensing column matches the sampling diverter angle set by the wireless controller, the positioning motor is turned off via the wireless controller. In this way, the top of the transverse diverter hood rotates to a set of sampling top holes on the top plate, the side of the transverse diverter hood rotates to a set of sampling side holes, and the bottom of the transverse diverter hood can also rotate to a set of sampling bottom holes.

[0011] Preferably, a side precise diversion sampling assembly is provided on one side of the linkage column; the side precise diversion sampling assembly includes a distance sensor fixedly arranged on one side of the linkage column, the distance sensor is electrically connected to the wireless controller, the distance sensor is fixedly connected to the top positioning plate, a steel wire rope is provided on one side of the distance sensor, the top positioning plate and the transverse diversion cover are both slidably connected to the steel wire rope, one end of the steel wire rope is fixedly connected to a counterweight block, the bottom end of the counterweight block is fixedly connected to the side sampling diversion plate, the side sampling diversion plate is slidably connected to the linkage column, and the outer wall of the side sampling diversion plate is fixedly connected to an outer pad, the transverse diversion cover and the sampling tube are both slidably connected to the outer pad; the bottom end of the side sampling diversion plate is fixedly connected to a side sampling hose, the bottom end of the side sampling hose is threadedly connected to a side valve, and the other end of the steel wire rope is installed with a micro electric cylinder, the output end of the micro electric cylinder is fixedly connected to the steel wire rope, and the micro electric cylinder is fixedly connected to the sleeve disc.

[0012] A top sampling tube is provided on one side of the wire rope, and the top sampling tube is fixedly connected to the top positioning plate. The bottom end of the top sampling tube is threadedly connected to a top valve. A bottom valve is provided on one side of the side valve, and the bottom valve is fixedly connected to the bottom end of the inner wall of the transverse diversion cover. The micro-electric cylinder and the side valve are both electrically connected to the wireless controller, and the top valve and the bottom valve are both electrically connected to the wireless controller. The counterweight is made of lead, and the cross-sectional shape of the counterweight is circular. The outer wall of the outer pad is a smooth surface, and the outer pad is made of rubber. The side sampling hose and the top sampling tube are both fixedly connected to the sleeve.

[0013] When this technology is in use, the wireless controller is used to start the micro-electric cylinder to drive the end of the wire rope to move upward, and the side sampling diverter plate is moved downward by the counterweight force of the counterweight block. At the same time, the side sampling diverter plate drives the outer pad to move downward, and the outer pad slides down along the inner wall of the sampling tube for sealing. The distance sensor is used to sense the distance between the distance sensor and the counterweight block. When the distance value sensed by the distance sensor is the same as the distance value set by the wireless controller, the micro-electric cylinder is turned off by the wireless controller.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention adopts a horizontal and vertical bidirectional precise sampling and diversion mechanism. The positioning motor drives the sleeve to rotate, the horizontal diversion cover drives the sealing sleeve to rotate, the bottom positioning plate rotates along the inner wall of the sampling tube, the bottom positioning plate drives the linkage column to rotate, the top positioning plate drives the sealing gasket sleeve to rotate, the linkage column drives the side sampling diversion plate to rotate, the side sampling diversion plate drives the outer gasket to rotate, the top of the horizontal diversion cover rotates to a group of sampling top hole positions on the top plate, the side of the horizontal diversion cover rotates to a group of sampling side hole positions, and the bottom of the horizontal diversion cover rotates to a group of sampling bottom hole positions. In this way, precise diversion sampling can be achieved according to the specified angle area and the specified vertical interval area according to user needs, thereby greatly improving the accuracy of diversion sampling.

[0016] 2. The present invention utilizes a precise sealing sampling and diversion assembly. When the transverse diversion hood rotates, the sealing bottom gasket is driven to rotate, the transverse diversion hood drives the sealing side gasket to rotate, and the transverse diversion hood drives the sealing top gasket to rotate. The top of the transverse diversion hood rotates to a group of sampling top hole positions on the top plate, and the sealing top gasket can provide edge sealing. The side of the transverse diversion hood rotates to a group of sampling side hole positions, and the edge is sealed by the sealing side gasket, and the bottom edge sealing is provided by the sealing bottom gasket. Therefore, precise sealed diversion sampling can be achieved according to user needs according to the specified angle sampling area and the specified vertical spacing area, thereby greatly improving the accuracy of diversion sampling.

[0017] 3. The present invention uses a side precise diversion sampling component to start the micro-electric cylinder to drive the end of the wire rope to move upward, and the counterweight force of the counterweight block causes the side sampling diversion plate to move downward. The side sampling diversion plate slides down along the outer wall of the linkage column, and the outer pad slides down along the outer wall of the horizontal diversion cover and seals along the inner wall of the sampling tube. When the distance value sensed by the distance sensor is the same as the distance value set by the wireless controller, the multiple sampling side holes between the top positioning plate and the side sampling diversion plate can be positioned and diverted, and then accurate diversion sampling can be achieved according to the specified vertical spacing area according to user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the atmospheric particulate matter sampling diverter of the present invention.

[0019] Figure 2 This is a schematic diagram of the vertical cross-section structure of the atmospheric particulate matter sampling diverter of the present invention.

[0020] Figure 3 It is a schematic diagram of the partial structure of the vertical section of the connection between the sleeve disc and the transverse diverter cover of the present invention.

[0021] Figure 4 It is a schematic diagram of the partial structure of the vertical section of the connection between the transverse diverter cover and the sealing top gasket of the present invention.

[0022] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This is a schematic diagram of the partial structure of the connection between the sealing base gasket and the horizontal diverter cover when viewed from above.

[0024] Figure 7 It is a schematic diagram of the partial structure of the vertical section of the connection between the collar and the butt pipe of the present invention.

[0025] Figure 8 It is a schematic diagram of the partial structure of the vertical section of the connection between the fan and the collar of the present invention.

[0026] Figure 9 It is a schematic diagram of the partial structure of the vertical section of the connection between the steel wire rope and the micro electric cylinder of the present invention.

[0027] The accompanying drawings are marked as follows: 1. Sampling cylinder; 2. lateral diverter cover; 3. sleeve plate; 4. positioning motor; 5. sealing sleeve; 6. bottom positioning plate; 7. linkage column; 8. top positioning plate; 9. sealing gasket sleeve; 10. sealing top gasket; 11. sealing side gasket; 12. sealing bottom gasket; 13. sampling bottom hole; 14. sampling side hole; 15. top plate; 16. sampling top hole; 17. pillar; 18. docking tube; 19. collar; 20. wireless controller; 21. fan; 22. distance sensor; 23. wire rope; 24. counterweight; 25. side sampling diverter plate; 26. outer pad; 27. side sampling hose; 28. side valve; 29. micro electric cylinder; 30. top sampling tube; 31. top valve; 32. bottom valve; 33. sensing column; 34. angle sensor. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] As attached Figure 1 - Attachment Figure 9 An atmospheric particulate matter sampling diverter is shown, which is equipped with a horizontal and vertical bidirectional precise sampling and diversion mechanism, a precise sealed sampling and diversion component, and a side precise diversion sampling component. The settings of each mechanism and component can achieve precise diversion sampling in a specified angle area and a specified vertical interval area according to user needs, greatly improving the accuracy of diversion sampling. The specific structural settings of each mechanism and component are as follows.

[0030] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 5 As shown, the transverse diversion hood 2 rotates inside the sampling tube 1, the sleeve disc 3 is fixed on one side of the transverse diversion hood 2, and the bottom end of the sleeve disc 3 is provided with a horizontal and vertical bidirectional precise sampling and diversion mechanism; the horizontal and vertical bidirectional precise sampling and diversion mechanism includes a positioning motor 4 arranged at the bottom end of the sleeve disc 3, the positioning motor 4 is used to drive the sleeve disc 3 to rotate, the inner wall of the transverse diversion hood 2 is fixedly connected to the sealing sleeve 5, the inner wall of the sealing sleeve 5 is fixedly connected to the bottom positioning plate 6, and the upper surface of the bottom positioning plate 6 is fixedly installed with a linkage column 7.

[0031] The top of the linkage column 7 is fixedly connected to the top positioning plate 8, and the outer wall of the top positioning plate 8 is fixedly installed with a sealing gasket 9. The sealing gasket 9 is fixedly connected to the transverse diverter cover 2. The top center point of the transverse diverter cover 2 is fixedly connected to the sensor column 33, and the top of the sensor column 33 is installed with an angle sensor 34. The sensing end of the angle sensor 34 is fixedly connected to the sensor column 33. The sleeve 3 is rotationally connected to the sampling cylinder 1. The sealing sleeve 5 and the sealing gasket 9 are both made of rubber. The wireless controller 20 is electrically connected to the positioning motor 4. The sealing gasket 9 and the sealing sleeve 5 are both slidably connected to the sampling cylinder 1, and the inner wall of the sampling cylinder 1 is a smooth surface.

[0032] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 6 As shown, the upper surface of the transverse diverter cover 2 is provided with a precise sealing sampling and diverter assembly; the precise sealing sampling and diverter assembly includes a sealing top gasket 10 fixedly arranged on the upper surface of the transverse diverter cover 2, and two sealing side gaskets 11 are fixedly connected to the other side of the transverse diverter cover 2, and the sealing side gaskets 11 are rotatably connected to the sampling tube 1. The bottom end of the transverse diverter cover 2 is fixedly connected to a sealing bottom gasket 12, and the sealing bottom gasket 12 is rotatably connected to the sampling tube 1; the bottom end of the inner wall of the sampling tube 1 is provided with multiple groups of sampling bottom holes 13, the outer wall of the sampling tube 1 is provided with multiple groups of sampling side holes 14, and the top end of the sampling tube 1 is fixedly connected to a top plate 15, and the interior of the top plate 15 is provided with multiple groups of sampling top holes 16, and the top plate 15 is fixedly connected to the angle sensor 34. The sealing top gasket 10 is rotatably connected to the top plate 15, and the sealing top gasket 10, the sealing side gaskets 11, and the sealing bottom gasket 12 are all made of rubber.

[0033] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 8As shown, the bottom end of the sleeve 3 is rotatably connected to a docking tube 18, and the docking tube 18 is fixedly connected to the sampling tube 1. A pillar 17 is installed on one side of the positioning motor 4, and the positioning motor 4 and the docking tube 18 are fixedly connected to the pillar 17, so that the bottom end of the docking tube 18 can be plugged into the top interface of the atmospheric particulate sampling and detection equipment, and the docking tube 18 supports the pillar 17, and the pillar 17 provides a stable supporting force for the positioning motor 4; a collar 19 is provided below the positioning motor 4, and the collar 19 is fixedly connected to the docking tube 18, and a wireless controller 20 is installed on the upper surface of the collar 19, and a fan 21 is fixedly installed on the bottom end of the collar 19, and the output end of the fan 21 is connected to the collar 19, and the cross-sectional shape of the collar 19 is a circular ring, so that the collar 19 supports the fan 21, and the fan 21 is turned on by the wireless controller 20 to realize the driving operation of the fan 21.

[0034] In this embodiment, as shown in the attached Figure 5 - Attachment Figure 9 As shown, a side precise diversion sampling assembly is provided on one side of the linkage column 7; the side precise diversion sampling assembly includes a distance sensor 22 fixedly arranged on one side of the linkage column 7, the distance sensor 22 is electrically connected to the wireless controller 20, the distance sensor 22 is fixedly connected to the top positioning plate 8, a steel wire rope 23 is provided on one side of the distance sensor 22, the top positioning plate 8 and the horizontal diversion cover 2 are both slidably connected to the steel wire rope 23, one end of the steel wire rope 23 is fixedly connected to a counterweight block 24, the bottom end of the counterweight block 24 is fixedly connected to a side sampling diversion plate 25, the side sampling diversion plate 25 is slidably connected to the linkage column 7, and the outer wall of the side sampling diversion plate 25 is fixedly connected to an outer pad 26, the horizontal diversion cover 2 and the sampling tube 1 are both slidably connected to the outer pad 26.

[0035] The bottom end of the side sampling diverter plate 25 is fixedly connected to a side sampling hose 27, and the bottom end of the side sampling hose 27 is threadedly connected to a side valve 28. The other end of the wire rope 23 is mounted with a micro-electric cylinder 29, the output end of which is fixedly connected to the wire rope 23, and the micro-electric cylinder 29 is fixedly connected to the sleeve 3. A top sampling tube 30 is provided on one side of the wire rope 23, and the top sampling tube 30 is fixedly connected to the top positioning plate 8. The bottom end of the top sampling tube 30 is threadedly connected to a top valve 31. A bottom valve 32 is provided on one side of the side valve 28, and the bottom valve 32 is fixedly connected to the bottom end of the inner wall of the horizontal diverter cover 2. The micro-electric cylinder 29 and the side valve 28 are both electrically connected to the wireless controller 20, and the top valve 31 and the bottom valve 32 are both electrically connected to the wireless controller 20. The counterweight 24 is made of lead and has a circular cross-section. The outer wall of the outer pad 26 is a smooth surface, and the outer pad 26 is made of rubber material. The side sampling hose 27 and the top sampling tube 30 are both fixedly connected to the sleeve disc 3.

[0036] The working principle of the atmospheric particulate matter sampling diverter of the present invention is as follows:

[0037] Step 1: During installation, insert the bottom end of the butt joint 18 into the top interface of the atmospheric particulate sampling and detection equipment, and squeeze the butt joint 18 to ensure that the installation is firm.

[0038] Step 2: When accurately sampling and diverting in both horizontal and vertical directions, the positioning motor 4 is started through the wireless controller 20, and at the same time, the connecting pipe 18 supports the pillar 17, and the pillar 17 provides stable support force for the positioning motor 4. The positioning motor 4 drives the sleeve 3 to rotate, and the sleeve 3 rotates on the sampling tube 1. The horizontal diverter cover 2 drives the sealing sleeve 5 to rotate, and the sealing sleeve 5 drives the bottom positioning plate 6 to rotate, and the bottom positioning plate 6 rotates along the inner wall of the sampling tube 1. At the same time, the bottom positioning plate 6 drives the linkage column 7 to rotate, and the linkage column 7 drives the top positioning plate 8 to rotate, and the top positioning plate 8 drives the sealing gasket sleeve 9 to rotate. At the same time, the linkage column 7 drives the side sampling diverter plate 25 to rotate, and the side sampling diverter plate 25 drives the outer pad 26 to rotate. The side sampling diverter plate 25 causes the side sampling hose 27 to rotate, and the horizontal diverter cover 2 will simultaneously drive the sensor column 33 to rotate, and the sensor column 33 drives the sensing end of the angle sensor 34 to rotate, and the angle sensor 34 realizes angle sensing of the sensor column 33.

[0039] Step 3: When accurately sealing the sampling diversion, the rotation of the transverse diversion cover 2 drives the sealing bottom gasket 12 to rotate. The sealing bottom gasket 12 rotates along the bottom end of the inner wall of the sampling tube 1. The transverse diversion cover 2 also drives the sealing side gasket 11 to rotate. The sealing side gasket 11 rotates along the inner wall of the sampling tube 1. The transverse diversion cover 2 also drives the sealing top gasket 10 to rotate. The sealing top gasket 10 rotates along the lower surface of the top plate 15. When the angle value sensed by the angle sensor 34 for the sensing column 33 is the same as the sampling diversion angle set by the wireless controller 20, the positioning motor 4 is turned off by the wireless controller 20. In this way, the top of the transverse diversion cover 2 rotates to the position of a group of sampling top holes 16 on the top plate 15, and the sealing top gasket 10 can provide an edge seal. At the same time, the side of the transverse diversion cover 2 rotates to the position of a group of sampling side holes 14, and the sealing side gasket 11 provides an edge seal. The bottom of the transverse diversion cover 2 can also rotate to the position of a group of sampling bottom holes 13, and the sealing bottom gasket 12 provides an edge seal. This allows for precise sampling and diversion according to specified horizontal angle positions and vertically specified separation areas.

[0040] Step 4: When performing precise side flow diversion sampling, the wireless controller 20 activates the micro-electric cylinder 29 to move the end of the wire rope 23 upward. The counterweight force of the counterweight 24 causes the side sampling diverter plate 25 to move downward. The side sampling diverter plate 25 slides down along the outer wall of the linkage column 7. At the same time, the side sampling diverter plate 25 drives the outer pad 26 downward, and the outer pad 26 slides down along the outer wall of the transverse diverter cover 2. At the same time, the outer pad 26 slides down along the inner wall of the sampling tube 1, and the side sampling diverter plate 25 drives the side sampling hose 27 to move downward. The distance sensor 22 senses the distance between the distance sensor 22 and the counterweight 24. When the distance value sensed by the distance sensor 22 is the same as the distance value set by the wireless controller 20, the wireless controller 20 turns off the micro-electric cylinder 29, thereby accurately adjusting and positioning the sampling diverter area between the top positioning plate 8 and the side sampling diverter plate 25.

[0041] When it is necessary to sample and divert atmospheric particulate matter from the top, the fan 21 is activated, and the wireless controller 20 closes the side valve 28 and the bottom valve 32, and opens the top valve 31. Air from a designated top angle is drawn into the top sampling tube 30 through a set of sampling top holes 16 at the top of the top plate 15. The air is then discharged from the top sampling tube 30 into the top valve 31, and then discharged from the top valve 31 along the docking tube 18 to the sensor end of the atmospheric particulate matter sampling and detection device, thereby achieving sampling and diverting processing for the air from the top angle. When it is necessary to sample and divert atmospheric particulate matter from the side, the top valve 31 and the bottom valve 32 are closed, and the side valve 28 is opened. Air from the side is drawn in through the multiple sampling side holes 14 in the area between the side sampling diverter plate 25 and the top positioning plate 8. The air then flows through the side sampling hose 27 into the side valve 28, and then into the docking tube 18. The docking tube 18 is then docked to the sensor end of the atmospheric particulate matter sampling and detection device, thereby achieving sampling and diverting processing for the air from the designated side angle. When sampling and diverting bottom atmospheric particulate matter, the top valve 31 and side valve 28 are closed, and the bottom valve 32 is opened. In this way, the bottom sampling hole 13 can transport the bottom air into the bottom valve 32, and then enter the docking tube 18 through the bottom valve 32. The docking tube 18 then transports the air to the sensor end of the atmospheric particulate matter sampling and detection equipment, thereby achieving sampling and diverting processing of the air in the specified angle area at the bottom.

[0042] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An atmospheric particulate matter sampling diverter, comprising a sampling barrel (1), a transverse diverter cover (2), a wireless controller (20), and a sleeve (3), wherein the transverse diverter cover (2) rotates inside the sampling barrel (1), and the sleeve (3) is fixed to one side of the transverse diverter cover (2), characterized in that: The bottom end of the sleeve (3) is provided with a horizontal and vertical bidirectional precise sampling and diversion mechanism; The horizontal and vertical bidirectional precise sampling and diversion mechanism comprises a positioning motor (4) arranged at the bottom end of the sleeve disc (3), the positioning motor (4) is used to drive the sleeve disc (3) to rotate, the inner wall of the horizontal diversion cover (2) is fixedly connected to a sealing sleeve (5), the inner wall of the sealing sleeve (5) is fixedly connected to a bottom positioning plate (6), and the upper surface of the bottom positioning plate (6) is fixedly mounted with a linkage column (7); The top of the linkage column (7) is fixedly connected to a top positioning plate (8), and a sealing gasket (9) is fixedly installed on the outer wall of the top positioning plate (8), the sealing gasket (9) is fixedly connected to the transverse diversion cover (2), the top center point of the transverse diversion cover (2) is fixedly connected to a sensing column (33), and an angle sensor (34) is installed on the top of the sensing column (33), the sensing end of the angle sensor (34) is fixedly connected to the sensing column (33), the bottom end of the inner wall of the sampling cylinder (1) is provided with a plurality of sampling bottom holes (13), the outer wall of the sampling cylinder (1) is provided with a plurality of sampling side holes (14), and the top of the sampling cylinder (1) is fixedly connected to a top plate (15), and the interior of the top plate (15) is provided with a plurality of sampling top holes (16).

2. The atmospheric particulate matter sampling diverter according to claim 1, characterized in that: The sleeve (3) is rotatably connected to the sampling cylinder (1), the sealing sleeve (5) and the sealing gasket sleeve (9) are both made of rubber material, and the wireless controller (20) is electrically connected to the positioning motor (4).

3. The atmospheric particulate matter sampling diverter according to claim 1, characterized in that: The sealing gasket sleeve (9) and the sealing sleeve (5) are both slidably connected to the sampling cylinder (1), and the inner wall of the sampling cylinder (1) is a smooth surface.

4. The atmospheric particulate matter sampling diverter according to claim 1, characterized in that: The upper surface of the transverse flow diversion cover (2) is provided with a precise sealing sampling and diversion component; The precise sealing sampling and diversion assembly comprises a sealing top pad (10) fixedly arranged on the upper surface of the transverse diversion cover (2); two sealing side pads (11) are fixedly connected to the other side of the transverse diversion cover (2); the sealing side pads (11) are rotatably connected to the sampling tube (1); a sealing bottom pad (12) is fixedly connected to the bottom end of the transverse diversion cover (2); the sealing bottom pad (12) is rotatably connected to the sampling tube (1); and the top plate (15) is fixedly connected to the angle sensor (34).

5. The atmospheric particulate matter sampling diverter according to claim 4, characterized in that: The sealing top gasket (10) is rotatably connected to the top plate (15), and the sealing top gasket (10), the sealing side gaskets (11) and the sealing bottom gasket (12) are all made of rubber material.

6. The atmospheric particulate matter sampling diverter according to claim 1, characterized in that: The bottom end of the sleeve (3) is rotatably connected to a butt joint (18), the butt joint (18) is fixedly connected to the sampling cylinder (1), a support (17) is installed on one side of the positioning motor (4), and the positioning motor (4) and the butt joint (18) are fixedly connected to the support (17); A collar (19) is provided below the positioning motor (4), and the collar (19) is fixedly connected to the butt joint (18). A wireless controller (20) is installed on the upper surface of the collar (19), and a fan (21) is fixedly installed at the bottom end of the collar (19).

7. The atmospheric particulate matter sampling diverter according to claim 6, characterized in that: The output end of the fan (21) is connected to the collar (19), and the cross-section of the collar (19) is in the shape of a circular ring.

8. The atmospheric particulate matter sampling diverter according to claim 1, characterized in that: A side precise flow diversion sampling assembly is provided on one side of the linkage column (7); The side precise flow diversion sampling assembly includes a distance sensor (22) fixedly arranged on one side of the linkage column (7), the distance sensor (22) is electrically connected to the wireless controller (20), the distance sensor (22) is fixedly connected to the top positioning plate (8), a steel wire rope (23) is provided on one side of the distance sensor (22), the top positioning plate (8) and the transverse diversion cover (2) are both slidably connected to the steel wire rope (23), one end of the steel wire rope (23) is fixedly connected to a counterweight block (24), the bottom end of the counterweight block (24) is fixedly connected to a side sampling diversion plate (25), the side sampling diversion plate (25) is slidably connected to the linkage column (7), and the outer wall of the side sampling diversion plate (25) is fixedly connected to an outer pad (26), and the transverse diversion cover (2) and the sampling cylinder (1) are both slidably connected to the outer pad (26); The bottom end of the side sampling diverter plate (25) is fixedly connected to a side sampling hose (27), and the bottom end of the side sampling hose (27) is threadedly connected to a side valve (28). The other end of the steel wire rope (23) is installed with a micro-electric cylinder (29), and the output end of the micro-electric cylinder (29) is fixedly connected to the steel wire rope (23), and the micro-electric cylinder (29) is fixedly connected to the sleeve disc (3); A top sampling tube (30) is provided on one side of the steel wire rope (23), and the top sampling tube (30) is fixedly connected to the top positioning plate (8). The bottom end of the top sampling tube (30) is threadedly connected to a top valve (31). A bottom valve (32) is provided on one side of the side valve (28), and the bottom valve (32) is fixedly connected to the bottom end of the inner wall of the transverse diversion cover (2). The micro-electric cylinder (29) and the side valve (28) are both electrically connected to the wireless controller (20), and the top valve (31) and the bottom valve (32) are both electrically connected to the wireless controller (20).

9. The atmospheric particulate matter sampling diverter according to claim 8, characterized in that: The counterweight block (24) is made of lead, and the cross-section of the counterweight block (24) is circular.

10. The atmospheric particulate matter sampling diverter according to claim 8, characterized in that: The outer wall of the outer pad (26) is a smooth surface, and the outer pad (26) is made of rubber material. The side sampling hose (27) and the top sampling tube (30) are both fixedly connected to the sleeve disc (3).

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