A visual air pollution detection device
By designing a visual air pollution detection device, multi-angle adjustment of the photoelectric detection component and chamber cleaning are realized, solving the problems of single detection angle and impurity residue in the existing technology, improving detection accuracy and reliability, and making it suitable for semiconductor cleanrooms and industrial pollution monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN NUOCHENG INTELLIGENT TECH CO LTD
- Filing Date
- 2026-04-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing air pollution detection devices suffer from limitations such as a single detection angle, inability to capture scattered light signals from particles of different sizes across all dimensions, inconvenience in adjusting the relative positions of the light source and detector, easy retention of particulate impurities in the detection chamber, and lack of an efficient cleaning mechanism, resulting in poor reliability of detection results.
A visual air pollution detection device was designed, comprising a detection housing, a digital display control panel, a photoelectric detection component, and a light source adjustment component. The device achieves 360-degree rotation and radial adjustment of the light source through the detection position adjustment component. It is combined with a cleaning brush and a vacuum pump for cleaning and integrates gas delivery, filtration, and exhaust functions to achieve multi-angle detection and impurity removal.
It enables flexible adaptation to different scattering angles, improves detection accuracy, avoids impurity residue and cross-contamination, reduces usage costs, and meets the detection needs of multiple types of particles.
Smart Images
Figure CN122108872A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air pollution detection technology, and specifically to a visual air pollution detection device. Background Technology
[0002] Light pollution monitoring using visualization involves collecting multi-dimensional data such as illuminance and light intensity from various sensors, and then using data processing and visualization technologies to transform abstract light pollution data into intuitive charts, maps, and other forms. This enables precise monitoring, assessment, and presentation of light pollution. In lithium-ion battery manufacturing, dust generated during ultrasonic welding, if not effectively monitored, can easily lead to potential battery performance issues. In the semiconductor field, the lack of visualization of foreign matter attachment processes on wafers and chips makes it difficult to improve yield rates. In wafer handling scenarios, the lack of visualization monitoring of dust generated during the handling of equipment such as sorters and RGVs increases the probability of equipment failure and product contamination. In flat panel display and optical component manufacturing, the inability to visualize and identify foreign matter, scratches, and textures on masks, glass substrates, and thin films severely affects product quality. In the stacking process, the risk of foreign matter entrapment during the stacking of thin films, ceramic capacitors, and printed circuit boards is highly susceptible to defects due to the lack of effective monitoring methods. Microparticle visualization detection often uses Mie scattering technology to capture foreign objects invisible to the naked eye. Ideally, the light source and camera should be placed facing each other to maximize the intensity of scattered light, thereby improving detection accuracy.
[0003] An agricultural visualization system based on gaseous pollutant sensors, disclosed in CN206804582U, includes: multiple gaseous pollutant sensors for real-time monitoring of the concentration of various pollutants in the air; a 360-degree panoramic ring lens for real-time monitoring of crop growth and personnel work within a ring field of view surrounding the farm area; and a computer connected to the multiple gaseous pollutant sensors and the 360-degree panoramic ring lens.
[0004] A dust detection system with publication number CN106053307A includes a power supply, a microprocessor, an infrared emitting light source, and an optical detector array. The power supply consists of a DC power input port and voltage regulation and filtering protection circuits. The infrared emitting light source and the optical detector array are arranged in a corresponding relationship, and the infrared emitting light source can form a sampling channel with the optical detector array.
[0005] Current technologies rely on a single detection angle, mostly fixed-direction detection, which cannot capture scattered light signals from particles of different sizes across all dimensions. Adjusting the relative position of the light source and detector is inconvenient, making it difficult to flexibly adapt to detection requirements involving forward, lateral, and backward scattering angles. Furthermore, particle impurities easily remain in the detection chamber, and the lack of an efficient cleaning mechanism leads to cross-contamination after multiple detections, affecting the reliability of the results. Summary of the Invention
[0006] (a) Technical problems to be solved The purpose of this invention is to provide a visual air pollution detection device in order to solve the above-mentioned problems.
[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a visual air pollution detection device, including a detection housing and a digital display control panel. The detection housing has a detection chamber with an inner profile in the shape of a cylinder. The detection chamber has an air supply component for supplying air into the detection chamber and an exhaust component for discharging gas from the detection chamber at both ends along its axial direction. The detection chamber is equipped with a photoelectric detection component that can adjust the angle between the detector and the light source body, and the detection chamber is also equipped with a detection position adjustment component that can drive the photoelectric detection component to rotate and clean the inner wall of the detection chamber. One side of the detection chamber is equipped with a light source positioning component for adjusting the position of the light source body along its radial direction.
[0008] Furthermore, the detection position adjustment component includes an outer ring, an inner ring rotatably disposed within the outer ring, a circular brush seat at one end of the inner ring, a plurality of cleaning brushes evenly distributed along its circumference on the brush seat, and a rotation drive structure between the other end of the inner ring and the outer ring.
[0009] Furthermore, the rotary drive structure includes a second motor fixedly mounted on the outer ring, the output shaft of the second motor being connected to a gear, a gear ring being fixedly mounted on the inner ring, the gear ring meshing with the gear, and the output end of the digital display control panel being electrically connected to the input end of the second motor.
[0010] Furthermore, the inner wall of the detection housing is provided with several guide ribs protruding, the length direction of the guide ribs being consistent with the axial direction of the detection chamber. The outer wall of the outer ring is provided with guide grooves that cooperate with the guide ribs for sliding. Several inner magnetic blocks are fixedly provided on the outer side of the outer ring. The outer side of the detection housing is provided with an outer magnetic block that magnetically cooperates with the inner magnetic blocks. When the outer magnetic block moves along the outer side of the detection housing, the outer magnetic block can drive the detection position adjustment component to move within the detection chamber through the magnetically connected inner magnetic blocks.
[0011] Furthermore, the photoelectric detection component has three or more along the inner circumferential direction of the inner ring. The photoelectric detection component includes an adjustment cavity opened on the inner ring, a rotating platform rotatably arranged in the adjustment cavity, the detector being arranged on the rotating platform, a second bevel gear being provided at one of the rotating shaft ends of the rotating platform, a first bevel gear being meshed on one side of the second bevel gear, a third motor for driving the first bevel gear to rotate being provided on the inner ring, and the output end of the digital display control panel being electrically connected to the input end of the third motor.
[0012] Furthermore, the light source adjustment assembly includes two parallel guide rods, with both ends of the guide rods fixedly mounted on the inner side wall of the detection chamber. A lead screw is provided between the two guide rods, and one end of the lead screw is driven to rotate by a first motor fixedly mounted on the detection housing. A lifting platform is threaded onto the lead screw, and a fixed sleeve is fixedly mounted on one side of the lifting platform. The light source body is disposed inside the fixed sleeve, and lugs are provided on both sides of the fixed sleeve. Guide sliding holes for sliding on the guide rods are provided on the lugs. The output end of the digital display control panel is electrically connected to the input end of the first motor.
[0013] Furthermore, the detection chamber has openings at both ends along its axial direction, and the openings are sealed with end caps by bolts. The air supply assembly and the air exhaust assembly are respectively mounted on the two end caps, and the detection housing is provided with a support structure.
[0014] Furthermore, the air supply assembly includes an air pump, the air pump has a pre-filter box at its air inlet, the end cover has an installation sleeve for mounting the pre-filter box, the air pump's outlet is connected to the detection chamber, and the output of the digital display control panel is electrically connected to the input of the air pump.
[0015] Furthermore, the exhaust assembly includes a vacuum pump, the inlet of which is connected to a suction pipe for communicating with the detection chamber, the suction pipe being equipped with a solenoid valve, the outlet of which faces outward and communicates with the outside of the detection housing, and the output terminal of the digital display control panel is electrically connected to the input terminals of the vacuum pump and the solenoid valve respectively.
[0016] Furthermore, the support structure includes two support collars rotatably sleeved on the outside of the detection housing, with a plurality of connecting rods connected between the two support collars. The outer magnetic block has through holes for guiding the sliding of the connecting rods. A guide shaft is fixedly provided on the outer wall of the detection housing, and a guide groove is provided on the outer wall of the support collar for sliding with the guide shaft. A support seat is fixedly provided on the outer side of the support collar.
[0017] (III) Beneficial Effects Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By adjusting the position of the detector by 360 degrees, adjusting the individual angle of the photoelectric detection component, and combining the radial movement of the light source adjustment component, the relative angle between the light source and the detector can be flexibly adapted, covering forward, side, and backward scattering angles. It can simultaneously acquire the scattered light signals of particles of different sizes, meeting the detection needs of multiple types of particles such as PM1, PM2.5, PM10, and TSP. It is especially suitable for particle size analysis requirements in different scenarios such as semiconductor cleanrooms and industrial pollution monitoring.
[0018] 2. The pre-filter box pre-treats the gas to be tested, removing large particulate impurities; the cleaning brush can work with the rotation of the inner ring to clean the inner wall of the chamber over a wide area, and the vacuum pump is used to evacuate the chamber before testing. This triple protection avoids impurity residue and cross-contamination, ensuring a clean testing environment and thus improving testing accuracy.
[0019] 3. The detection position adjustment component has multiple functions. The first function is to enable 360-degree rotation adjustment of the photoelectric detection component, thereby enabling 360-degree detection around the beam axis. The second function is to clean the detection chamber and prevent impurities from adhering. The third function is to work with the light source adjustment component to adjust the position of the light source and the detection angle.
[0020] 4. This invention integrates multiple functions such as gas delivery, filtration, exhaust, vacuum pretreatment, angle adjustment, and automatic cleaning, without the need for additional auxiliary equipment, and completes the entire air pollution detection process in one integrated manner, reducing the cost of use. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is the present invention. Figure 1 A schematic diagram of the three-dimensional structure in the first direction; Figure 3 This is a schematic diagram of the AA cross-sectional structure of the present invention; Figure 4 This is a partially enlarged structural diagram of point B in the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of a partial cross-section in the first direction of the present invention; Figure 6 This is a partially enlarged structural diagram at point C of the present invention; Figure 7 This is a partially enlarged structural diagram of point D in the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of a partial cross-section in the second direction of the present invention; Figure 9 This is a partially enlarged structural diagram at point E of the present invention; Figure 10 This is the present invention. Figure 1 A schematic diagram of the second-direction three-dimensional structure.
[0023] The reference numerals in the attached drawings are explained as follows: 1. Detection housing; 101. Guide rib; 2. Support structure; 201. Support collar; 202. Support base; 203. Guide groove; 204. Guide shaft; 205. Connecting rod; 3. End cover; 4. Digital display control panel; 5. Light source adjustment assembly; 501. First motor; 502. Lead screw; 503. Guide rod; 504. Fixing sleeve; 505. Lifting platform; 506. Support lug; 6. Air supply assembly; 601. Air pump; 602. Pre-filter box; 603. Mounting sleeve; 7. Detection position adjustment assembly; 701. Outer ring; 702. Inner ring; 703. Gear ring; 704. Second motor; 705. Gear; 706. Guide groove; 707. Inner magnetic block; 708. Cleaning brush; 709. Brush holder; 8. Photoelectric detection assembly; 801. Third motor; 802. First bevel gear; 803. Second bevel gear; 804. Rotating platform; 805. Detector; 806. Adjustment chamber; 807. Opening slot; 9. Exhaust assembly; 901. Vacuum pump; 902. Suction pipe; 903. Solenoid valve; 10. Outer magnetic block; 11. Light source body. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0025] See Figures 1-10As shown, this invention provides a visual air pollution detection device, including a detection housing 1 and a digital display control panel 4. The detection housing 1 has a detection chamber with an inner cylindrical profile. At both ends of the detection chamber along its axial direction are respectively provided an air supply assembly 6 for supplying air into the detection chamber and an exhaust assembly 9 for discharging gas from the detection chamber. A photoelectric detection assembly 8, movable along its axial direction within the detection chamber, is capable of adjusting the angle between a detector 805 and a light source body 11. A detection position adjustment assembly 7, capable of driving the photoelectric detection assembly 8 to rotate and cleaning the inner wall of the detection chamber, is also provided within the detection chamber. A light source positioning assembly 5, for adjusting the radial position of the light source body 11, is provided on one side of the detection chamber. In practical applications, the light source body 11 uses a laser, specifically a particle visualization laser system.
[0026] See instruction manual attached Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, the detection position adjustment component 7 includes an outer ring 701, an inner ring 702 rotatably disposed within the outer ring 701, a circular brush holder 709 at one end of the inner ring 702, and a plurality of cleaning brushes 708 evenly distributed along its circumference on the brush holder 709. A rotary drive structure is provided between the other end of the inner ring 702 and the outer ring 701. The rotary drive structure includes a second motor 704 fixedly disposed on the outer ring 701, a gear 705 connected to the output shaft end of the second motor 704, a gear ring 703 fixedly disposed on the inner ring 702, the gear ring 703 meshing with the gear 705, and the output end of the digital display control panel 4 electrically connected to the input end of the second motor 704. The inner wall of the detection housing 1 has several protruding guide ribs 101, the length direction of which is consistent with the axial direction of the detection chamber. The outer wall of the outer ring 701 has guide grooves 706 that cooperate with the guide ribs 101 for sliding. Several inner magnetic blocks 707 are fixed on the outer side of the outer ring 701. The outer side of the detection housing 1 has an outer magnetic block 10 that magnetically engages with the inner magnetic blocks 707. When the outer magnetic block 10 moves along the outer side of the detection housing 1, it can drive the detection position adjustment component 7 to move within the detection chamber through the magnetically connected inner magnetic blocks 707. Through the above specific structural design, the detection position adjustment component 7 has multiple functions. The first function is to realize the 360-degree rotation adjustment of the photoelectric detection component 8, thereby realizing 360-degree detection around the beam axis. The second function is to clean the detection chamber and prevent impurities from adhering. The third function is to cooperate with the light source adjustment component 5 to adjust the position of the light source and the detection angle.
[0027] See instruction manual attached Figure 3 , Figure 4 , Figure 8 and Figure 9 As shown, the photoelectric detection component 8 has three or more circumferentially arranged along the inner side of the inner collar 702. The photoelectric detection component 8 includes an adjustment cavity 806 opened on the inner collar 702. A rotating platform 804 is rotatably arranged in the adjustment cavity 806. The detector 805 is arranged on the rotating platform 804. A second bevel gear 803 is provided at one end of the rotating shaft of the rotating platform 804. A first bevel gear 802 is meshed on one side of the second bevel gear 803. A third motor 801 for driving the first bevel gear 802 to rotate is provided on the inner collar 702. The output end of the digital display control panel 4 is electrically connected to the input end of the third motor 801. In practical applications, the photoelectric detection components 8 are distributed circumferentially in the inner ring 702, and the angle of each photoelectric detection component 8 is adjustable, so as to achieve full-dimensional capture of the scattered light from the light source in the detection chamber. At the same time, with the automatic control of the digital display control panel 4, the relative angle between the detector 805 and the light source body 11 is adjusted to meet the detection requirements of different scattering angles such as forward, side and backward, thereby improving the comprehensiveness and accuracy of the detection data.
[0028] See instruction manual attached Figure 5 and Figure 6 As shown, the light source positioning assembly 5 includes two parallel guide rods 503. The two ends of the guide rods 503 are fixedly mounted on the inner side wall of the detection chamber. A lead screw 502 is provided between the two guide rods 503. One end of the lead screw 502 is driven to rotate by a first motor 501 fixedly mounted on the detection housing 1. A lifting platform 505 is threaded onto the lead screw 502. A fixing sleeve 504 is fixedly mounted on one side of the lifting platform 505. The light source body 11 is disposed within the fixing sleeve 504. Lugs 506 are provided on both sides of the fixing sleeve 504. Guide holes for sliding on the guide rods 503 are provided on the lugs 506. The output of the digital display control panel 4 is electrically connected to the input of the first motor 501. In practical applications, the light source body 11 can be adjusted radially along the detection chamber, enabling flexible adjustment of the relative position between the light source body 11 and the photoelectric detection assembly 8. This ensures that the beam of the light source body 11 can cover the detection area, adapting to detection requirements with different scattering angles, and providing a stable and controllable light source foundation for light scattering detection.
[0029] The detection chamber is open at both ends along its axial direction and the openings are sealed with end caps 3 by bolts. The air supply assembly 6 and the exhaust assembly 9 are respectively installed on the two end caps 3. The detection housing 1 is provided with a support structure 2.
[0030] See instruction manual attached Figure 5As shown, the gas delivery assembly 6 includes an air pump 601. A pre-filter box 602 is located at the air inlet of the air pump 601. An installation sleeve 603 for mounting the pre-filter box 602 is provided on the end cap 3. The air outlet of the air pump 601 is connected to the detection chamber. The output of the digital display control panel 4 is electrically connected to the input of the air pump 601. While ensuring airflow into the detection chamber, the pre-filter box 602 prevents large particles, dust, and other impurities from contaminating the detection environment or damaging internal components, providing a clean and controllable gas sample for light scattering detection and ensuring the accuracy of the detection results.
[0031] See instruction manual attached Figure 5 As shown, the exhaust assembly 9 includes a vacuum pump 901. The inlet of the vacuum pump 901 is connected to a suction pipe 902 for communication with the detection chamber. A solenoid valve 903 is installed on the suction pipe 902. The outlet of the vacuum pump 901 faces outward and is connected to the outside of the detection housing 1. The output terminals of the digital display control panel 4 are electrically connected to the input terminals of the vacuum pump 901 and the solenoid valve 903, respectively. When exhaust or vacuuming is required, the solenoid valve 903 is energized and opened, the gas path is open, and the vacuum pump 901 can normally extract gas from the detection chamber. During the detection process, the solenoid valve 903 is de-energized and closed, blocking the gas path and preventing chamber pressure fluctuations from affecting detection stability, while also avoiding energy waste caused by the vacuum pump 901 running dry.
[0032] The support structure 2 includes two support collars 201 rotatably sleeved on the outside of the detection housing 1. Several connecting rods 205 are connected between the two support collars 201. The outer magnetic block 10 has through holes for guiding the sliding of the connecting rods 205. A guide shaft 204 is fixedly mounted on the outer wall of the detection housing 1. A guide groove 203 is provided on the outer wall of the support collars 201 for sliding with the guide shaft 204. A support seat 202 is fixedly mounted on the outer side of the support collars 201. The sliding of the guide shaft 204 within the guide groove 203 allows for angle adjustment of the support collars 201, thereby changing the support angle of the detection housing 1.
[0033] Working principle and technical effects of the present invention: In use, the air pump 601 of the gas delivery assembly 6 delivers the external gas to be detected into the detection chamber inside the detection housing 1. The position and angle between the detector 805 and the light source body 11 are adjusted according to the requirements of the gas to be detected. For example, for forward scattering (0°-30°), the detector needs to be installed at the front side angle of the light source body 11 in the direction of emission. For side scattering (around 90°), the detector is installed perpendicular to the beam axis. For backscattering (120°-180°), the detector and the light source are on the same side.
[0034] Specifically, the light source positioning component 5 can adjust the position of the light source body 11. The rotation of the output shaft of the first motor 501 can drive the lead screw 502 to rotate. The rotation of the lead screw 502 can drive the threaded lifting platform 505 to move axially along the guide rod 503, thereby driving the light source body 11 to move axially along the guide rod 503, thus adjusting the position of the light source body 11. In addition, the outer magnetic block 10 can be pushed to move along the outside of the detection housing 1. The outer magnetic block 10 can drive the detection position adjustment component 7 to move in the detection chamber through the magnetically connected inner magnetic block 707, thereby adjusting the position of the detector 805 along the axial direction of the detection chamber. Furthermore, the rotation of the output shaft of the second motor 704 can drive the gear 705 to rotate. The rotation of gear 705 drives the gear ring 703 to rotate, which in turn drives the inner ring 702 to rotate. The rotation of the inner ring 702 drives the photoelectric detection component 8 to rotate, thereby changing the detection direction of the photoelectric detection component 8 and realizing 360-degree detection of the beam around the axis. In addition, the rotation of the output shaft of the third motor 801 drives the first bevel gear 802 to rotate. The rotation of the first bevel gear 802 drives the meshing second bevel gear 803 to rotate. The rotation of the second bevel gear 803 drives the rotating platform 804 to adjust the angle in the adjustment cavity 806, thereby changing the angle between the detection direction and the beam axis. With the adjustment of the light source body 11 by the light source adjustment component 5, the angle between the light source and the detector can be maximized.
[0035] The exhaust assembly 9 can expel the gas in the detection chamber after the detection is completed. In addition, the outer magnetic block 10 drives the detection position adjustment assembly 7 to move axially in the detection chamber through the inner magnetic block 707. In addition, the inner collar 702 rotates to drive the cleaning brush 708 to clean the inner wall of the detection chamber, thereby avoiding the adhesion of impurities to the inner wall of the cleaning chamber, avoiding cross-influence of detection, and improving detection accuracy. Furthermore, the vacuum pump 901 can also create a vacuum in the detection chamber before entering the detection chamber to avoid residual gas in the detection chamber from affecting the detection accuracy.
[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A visual air pollution detection device, characterized in that: The device includes a detection housing (1) and a digital display control panel (4). The detection housing (1) has a detection chamber with an inner profile in the shape of a cylinder. The detection chamber is provided with an air supply assembly (6) for supplying air into the detection chamber and an exhaust assembly (9) for discharging gas from the detection chamber at both ends along its axial direction. The detection chamber is provided with a photoelectric detection component (8) that can adjust the angle between the detector (805) and the light source body (11) along its axial direction. The detection chamber is also provided with a detection position adjustment component (7) that can drive the photoelectric detection component (8) to rotate and clean the inner wall of the detection chamber. The detection chamber is provided with a light source positioning component (5) for adjusting the position of the light source body (11) along its radial direction on one side.
2. The visual air pollution detection device according to claim 1, characterized in that: The detection position adjustment component (7) includes an outer ring (701), an inner ring (702) is rotatably provided inside the outer ring (701), one end of the inner ring (702) is provided with a circular brush seat (709), a plurality of cleaning brushes (708) are evenly distributed along its circumference on the brush seat (709), and a rotation drive structure is provided between the other end of the inner ring (702) and the outer ring (701).
3. The visual air pollution detection device according to claim 2, characterized in that: The rotary drive structure includes a second motor (704) fixedly mounted on the outer ring (701), the output shaft end of the second motor (704) is connected to a gear (705), a gear ring (703) is fixedly mounted on the inner ring (702), the gear ring (703) meshes with the gear (705), and the output end of the digital display control panel (4) is electrically connected to the input end of the second motor (704).
4. The visual air pollution detection device according to claim 2, characterized in that: The inner wall of the detection housing (1) is provided with several guide ribs (101). The length direction of the guide ribs (101) is consistent with the axial direction of the detection chamber. The outer wall of the outer ring (701) is provided with a guide groove (706) that cooperates with the guide ribs (101) for sliding. Several inner magnetic blocks (707) are fixed on the outer side of the outer ring (701). The outer side of the detection housing (1) is provided with an outer magnetic block (10) that magnetically cooperates with the inner magnetic blocks (707). When the outer magnetic block (10) moves along the outer side of the detection housing (1), the outer magnetic block (10) can drive the detection position adjustment component (7) to move in the detection chamber through the magnetically connected inner magnetic blocks (707).
5. The visual air pollution detection device according to claim 2, characterized in that: The photoelectric detection component (8) is provided with three or more along the inner circumferential direction of the inner collar (702). The photoelectric detection component (8) includes an adjustment cavity (806) opened on the inner collar (702). A rotating platform (804) is rotatably provided in the adjustment cavity (806). The detector (805) is set on the rotating platform (804). A second bevel gear (803) is provided at one end of the rotating shaft of the rotating platform (804). A first bevel gear (802) is meshed on one side of the second bevel gear (803). A third motor (801) for driving the first bevel gear (802) to rotate is provided on the inner collar (702). The output end of the digital display control panel (4) is electrically connected to the input end of the third motor (801).
6. The visual air pollution detection device according to claim 1, characterized in that: The light source adjustment assembly (5) includes two parallel guide rods (503). The two ends of the guide rods (503) are fixedly mounted on the inner side wall of the detection chamber. A lead screw (502) is provided between the two guide rods (503). One end of the lead screw (502) is driven to rotate by a first motor (501) fixedly mounted on the detection housing (1). A lifting platform (505) is threaded onto the lead screw (502). A fixing sleeve (504) is fixedly mounted on one side of the lifting platform (505). The light source body (11) is mounted inside the fixing sleeve (504). The fixing sleeve (504) has lugs (506) on both sides. The lugs (506) have guide holes for sliding on the guide rods (503). The output end of the digital display control panel (4) is electrically connected to the input end of the first motor (501).
7. The visual air pollution detection device according to claim 1, characterized in that: The detection chamber is open at both ends along its axial direction and the openings are sealed with end caps (3) by bolts. The air supply assembly (6) and the exhaust assembly (9) are respectively installed on the two end caps (3). The detection housing (1) is provided with a support structure (2).
8. The visual air pollution detection device according to claim 7, characterized in that: The air delivery assembly (6) includes an air pump (601), and a pre-filter box (602) is provided at the air inlet of the air pump (601). The end cover (3) is provided with an installation sleeve (603) for mounting the pre-filter box (602). The air outlet of the air pump (601) is connected to the detection chamber. The output end of the digital display control panel (4) is electrically connected to the input end of the air pump (601).
9. The visual air pollution detection device according to claim 7, characterized in that: The exhaust assembly (9) includes a vacuum pump (901), the inlet of which is connected to a suction pipe (902) for communicating with the detection chamber. The suction pipe (902) is equipped with a solenoid valve (903). The outlet of the vacuum pump (901) is arranged outward and communicates with the outside of the detection housing (1). The output end of the digital display control panel (4) is electrically connected to the input end of the vacuum pump (901) and the solenoid valve (903).
10. The visual air pollution detection device according to claim 7, characterized in that: The support structure (2) includes two support rings (201) rotatably sleeved on the outside of the detection housing (1). A plurality of connecting rods (205) are connected between the two support rings (201). The outer magnetic block (10) is provided with a through hole for guiding the sliding of the connecting rods (205). A guide shaft (204) is fixedly provided on the outer wall of the detection housing (1). A guide groove (203) is provided on the outer wall of the support ring (201) for sliding with the guide shaft (204). A support seat (202) is fixedly provided on the outer side of the support ring (201).