An air pollution detection device

Abstract

The application belongs to the technical field of detection devices, and discloses an air pollution detection device, which comprises a detection body, and collecting structures are arranged on both sides of the detection body; the collecting structure comprises a fixing frame, a moving structure, a collecting pipe, a mounting pipe, a connecting pipe, an elastic connecting pipe and an adjusting structure; the fixing frame is arranged on both sides of the detection body, and the detection body and the top of the fixing frame are provided with the moving structure. The fixing frame moves away from the detection body, so that the collecting pipes on the fixing frame face different directions, and the connecting pipes on the top of the collecting pipes are respectively rotated to different angles, so that the collecting pipes on both sides of the detection body can collect and detect air in different directions at the same position, capture pollutants from different sources, and the two collecting pipes can simultaneously detect, so that the detection results can be compared in time, and the accuracy and integrity of the detection data are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection devices, and particularly relates to an air pollution detection device. BACKGROUND

[0002] Air pollution, also known as atmospheric pollution, according to the definition of the International Organization for Standardization (ISO), air pollution generally refers to the phenomenon that due to human activities or natural processes, certain substances enter the atmosphere, present a sufficient concentration, reach a sufficient time, and thus endanger the comfort, health and welfare of human beings or the environment. At present, the main indoor pollutants are formaldehyde emitted by the home. Formaldehyde has strong carcinogenicity and is the main pollutant of indoor pollution. In order to better control air pollution, it is necessary to measure the concentration of pollutants in the air through an air pollution detection device.

[0003] However, in the prior art, the detection device is placed in a suitable position for detection. When detecting different directions of the same position, the entire detection device needs to be moved to face different directions multiple times, and the detection results can be compared only after detection in multiple directions, which is inconvenient for improving the detection efficiency. SUMMARY

[0004] The application proposes the following technical scheme in view of the problems in the prior art.

[0005] An air pollution detection device comprises a detection body, and collecting structures are arranged on both sides of the detection body. The collecting structure comprises a fixing frame, a moving structure, a collecting pipe, a mounting pipe, a connecting pipe, an elastic connecting pipe and an adjusting structure. The fixing frame is arranged on both sides of the detection body. The moving structure is arranged on the top of the detection body and the fixing frame. The collecting pipe is arranged in the middle of the fixing frame. The elastic connecting pipe is fixedly installed on one side of the collecting pipe. One end of the elastic connecting pipe is connected to the rear side of the detection body. The mounting pipe is fixedly installed on the top of the collecting pipe. The connecting pipe is arranged on the top of the mounting pipe. The connecting pipe is L-shaped. One end of the connecting pipe is rotatably connected to the mounting pipe, and the other end of the connecting pipe extends to the top of the mounting pipe. The adjusting structure is arranged on the outer side of the connecting pipe.

[0006] As a preferred embodiment of the above technical scheme, the support frame is fixedly installed on the bottom of the detection body. The switch is arranged on the front side of the detection body. The control button is arranged above the switch and on the front side of the detection body. The handle is arranged on the top of the moving structure. The adjusting structure is symmetrically arranged with the center of the detection body.

[0007] As a preferred embodiment of the above technical solution, the moving structure includes a mounting block, a first motor, a rotating rod, a first gear, a first rack, a second rack and a moving block. The mounting block is fixedly installed on the top of the detection body, and the first motor is arranged inside the top of the mounting block. The output end of the first motor is transmission-connected to the rotating rod, and the first gear is fixedly installed on the bottom end of the rotating rod. The first rack is engaged on one side of the first gear, and the second rack is engaged on the other side thereof. The moving block is fixedly installed on the side of the first rack and the second rack away from the first gear.

[0008] As a preferred embodiment of the above technical solution, the handle is fixedly installed on the top of the mounting block, a groove is provided inside the mounting block, the top of the first motor is fixedly installed on the inner wall of the top of the groove, the bottom of the rotating rod is rotatably connected to the inner wall of the bottom of the groove, the bottoms of the first rack and the second rack are movably connected to the inner wall of the bottom of the groove, and moving openings are provided on both sides of the mounting block. The shape of the moving block is L-shaped, one end of the moving block passes through the moving opening and is fixedly installed on the top of the fixed bracket, and one side of the fixed bracket is slidably connected to the outer side of the detection body.

[0009] As a preferred embodiment of the above technical solution, the adjustment structure includes a fixed block, a second motor, a movable rod, a second gear, a third gear, a fixed ring and a first electric push rod. The second motor is arranged inside the fixed block, and the output end of the second motor is transmission-connected to the movable rod. The second gear is fixedly installed on the top of the movable rod, and the third gear is engaged with one side of the second gear. A fixing ring is fixedly installed on one end of the connecting tube, and two first electric push rods are fixedly installed on the bottom of the fixing ring. A slot is opened on the top of the third gear, and the bottom ends of the two first electric push rods are plugged into the slot.

[0010] As a preferred embodiment of the above technical solution, the fixed block is located on the outside of one end of the mounting tube and the connecting tube, and is located at the top of the collecting tube. A mounting groove is provided inside the fixed block, the second motor is fixedly installed on the inner wall of the bottom of the mounting groove, the top of the movable rod is rotatably connected to the inner wall of the top of the mounting groove, a movable opening is provided on the inner wall of the top of the fixed block, the third gear is located in the middle of the fixed block, and is located at the top of the mounting tube, and the upper and lower sides of the third gear are rotatably connected to the inner wall of the movable opening.

[0011] As a preferred embodiment of the above technical solution, the connecting tube is located in the middle of the third gear near one end of the mounting tube, the fixing ring is located on the top of the fixing block, the first electric push rod is located on both sides of the connecting tube, and one end thereof is located in the middle of the fixing block.

[0012] As a preferred embodiment of the above technical solution, a connecting block is fixedly installed on the outer side of the top of the fixed block, two fixing grooves are provided on both sides of the connecting block, and a second electric push rod is fixedly installed inside the two fixing grooves. A movable block is fixedly installed on one end of the second electric push rod, and an electric telescopic plate is fixedly installed on one side of the movable block.

[0013] As a preferred embodiment of the above technical solution, the second electric push rod, the movable block and the electric telescopic plate are all symmetrically arranged with the center of the connecting block. The electric telescopic plate is located on both sides of the collecting tube, and its bottom is slidably connected to the top of the fixed frame.

[0014] The beneficial effects of the present invention are:

[0015] (1) The present invention enables the collecting tubes on the fixing frame to face different directions by moving the fixing frame away from each other along the detection body, and the connecting tubes on the top of the collecting tubes are rotated to different angles respectively, thereby enabling the collecting tubes on both sides of the detection body to collect and detect air in different directions at the same position, thereby capturing pollutants from different sources, and effectively reducing the deviation of the detection results caused by local airflow. By performing detection simultaneously through the two collecting tubes, the detection results can be compared in a timely manner, the difference in pollutant distribution can be grasped, and the accuracy and integrity of the detection data can be improved;

[0016] (2) The present invention moves the first electric push rod so that the connecting pipe is no longer connected to the third gear. By rotating the connecting pipe, the connecting pipe can be removed from the collecting pipe for replacement. When the connecting pipe is blocked, there is no need to remove the entire collecting pipe from the fixed frame for replacement, thereby improving the replacement efficiency. Through the action of the electric telescopic plate, the collection pipe can be easily replaced while also being protected to prevent collisions that affect the sealing of the connection and thus the collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 Shown is a structural diagram of the rear side of the detection body of the embodiment;

[0019] Figure 3 Shown is a structural diagram of the detection body and the mobile structure of the embodiment;

[0020] Figure 4 Shown is a top view of the detection body of the embodiment;

[0021] Figure 5 Shown is a structural diagram of the fixing frame and the collecting tube of the embodiment;

[0022] Figure 6 Shown is a cross-sectional view of an embodiment of the collecting tube and the regulating structure;

[0023] Figure 7 Shown is Figure 6 A magnified view of point A;

[0024] Figure 8 Shown is a cross-sectional view of an embodiment collecting tube;

[0025] Figure 9 An internal structure diagram of an embodiment fixed block is shown.

[0026] In the figure: 1, detection body; 2, fixed frame; 3, collection pipe; 4, mounting pipe; 5, connecting pipe; 6, elastic connecting pipe; 7, support frame; 8, handle; 9, mounting block; 10, first motor; 11, rotating rod; 12, first gear; 13, first rack; 14, second rack; 15, moving block; 16, fixed block; 17, second motor; 18, movable rod; 19, second gear; 20, third gear; 21, fixed ring; 22, first electric push rod; 23, connecting block; 24, second electric push rod; 25, electric telescopic plate. DETAILED DESCRIPTION

[0027] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the embodiments.

[0028] The present application provides an air pollution detection device, as shown in Figure 1 、 Figure 2 、 Figure 5 、 Figure 8 The device includes a detection body 1, and collection structures are arranged on both sides of the detection body 1.

[0029] The collection structures include fixed frames 2, moving structures, collection pipes 3, mounting pipes 4, connecting pipes 5, elastic connecting pipes 6 and adjusting structures, the fixed frames 2 are arranged on both sides of the detection body 1, the detection body 1 and the fixed frames 2 are provided with the moving structures on top, the fixed frames 2 are provided with the collection pipes 3 in the middle, the collection pipes 3 are fixedly provided with the elastic connecting pipes 6 on one side, one end of the elastic connecting pipes 6 is connected with the rear side of the detection body 1, the collection pipes 3 are fixedly provided with the mounting pipes 4 on top, the mounting pipes 4 are provided with the connecting pipes 5 on top, the connecting pipes 5 are L-shaped, one end of the connecting pipes 5 is rotationally connected with the mounting pipes 4, and the other end of the connecting pipes 5 extends to the top of the mounting pipes 4, and the adjusting structures are arranged on the outer sides of the connecting ends of the mounting pipes 4 and the connecting pipes 5.

[0030] The fixing frame 2 is used to fix and support the collecting tube 3, thereby improving the stability of the collecting tube 3 during collection, and connecting the elastic connecting tube 6 to the detection body 1, so as to facilitate the detection of the collected air through the detection body 1, and inserting the connecting tube 5 into the interior of the mounting tube 4 so that the connecting tube 5 is connected to the collecting tube 3, and the connecting tube 5 is connected to the outside of the mounting tube 4 by the adjusting structure to limit the connection, thereby improving the stability of the connection between the connecting tube 5, the mounting tube 4 and the collecting tube 3, and then the adjusting structure can drive the connecting tube 5 to rotate so that the connecting tube 5 rotates to different directions for detection, and the movable structure allows the fixing frame 2 to drive the collecting tube 3 to move relative to the two sides of the detection body 1, so that air in different directions at the same position can be collected and detected, pollutants from different sources can be captured, and the deviation of the detection results caused by local airflow can be effectively reduced. By performing detection simultaneously with the two collecting tubes 3, the detection results can be compared in time, the difference in pollutant distribution can be grasped, and the accuracy and completeness of the detection data can be improved.

[0031] like Figures 1 to 3 As shown, a support frame 7 is fixedly installed at the bottom of the detection body 1, a switch is provided on the front side of the detection body 1, a control button is provided above the switch and on the front side of the detection body 1, a handle 8 is provided on the top of the movable structure, and the adjustment structure is symmetrically arranged with the center of the detection body 1.

[0032] The support frame 7 is used to support and fix the detection body 1 so that it can be tested at a fixed height. The collection tube 3 is fixed on the fixing frame 2. After turning on the switch and adjusting the position through the control button, the collection test is carried out. The detection body 1 is lifted by the handle 8 for easy movement. The symmetrically arranged adjustment structure can adjust the two collection tubes 3 at the same time without the need to adjust them separately by hand. After the angle of the connecting tube 5 is adjusted, the stability of the connection between the connecting tube 5 and the mounting tube 4 is improved, and the efficiency of the adjustment is improved. After the adjustment of the two collection tubes 3 is completed, it is convenient to compare the test results and improve the detection effect.

[0033] like Figures 1 to 4As shown, the mobile structure includes a mounting block 9, a first motor 10, a rotating rod 11, a first gear 12, a first rack 13, a second rack 14 and a moving block 15. The mounting block 9 is fixedly mounted on the top of the detection body 1, and the first motor 10 is arranged inside the top of the mounting block 9. The output end of the first motor 10 is connected to the rotating rod 11, and the bottom end of the rotating rod 11 is fixedly mounted with a first gear 12. The first rack 13 is engaged on one side of the first gear 12, and the second rack 14 is engaged on the other side thereof. The first rack 13 and the second rack 14 are away from the first rack. A moving block 15 is fixedly installed on one side of the wheel 12, the handle 8 is fixedly installed on the top of the mounting block 9, a groove is provided inside the mounting block 9, the top of the first motor 10 is fixedly installed on the inner wall of the top of the groove, the bottom of the rotating rod 11 is rotatably connected to the inner wall of the bottom of the groove, the bottoms of the first rack 13 and the second rack 14 are movably connected to the inner wall of the bottom of the groove, and moving openings are provided on both sides of the mounting block 9. The shape of the moving block 15 is L-shaped, one end of the moving block 15 passes through the moving opening and is fixedly installed on the top of the fixed frame 2, and one side of the fixed frame 2 is slidably connected to the outer side of the detection body 1.

[0034] The handle 8 is fixed by the mounting block 9, and the first motor 10 is installed through the groove inside the mounting block 9, so that the first motor 10 drives the rotating rod 11 and the first gear 12 to rotate along the inner wall of the bottom of the groove, and moves the first rack 13 and the second rack 14 away from each other along the inner wall of the groove, and makes the moving block 15 move at the moving mouth, driving the fixed frame 2 on both sides of the detection body 1 to drive the collecting tube 3 to move simultaneously along one side of the detection body 1 along with the first rack 13 and the second rack 14. When the fixed frame 2 and the collecting tube 3 move, the elastic connecting tube 6 stretches or contracts, thereby facilitating the connecting tube 5 on the top of the collecting tube 3 to move to the position required to be detected, so as to facilitate the collection of air in different directions.

[0035] like Figures 6 to 9 As shown, the adjustment structure includes a fixed block 16, a second motor 17, a movable rod 18, a second gear 19, a third gear 20, a fixed ring 21 and a first electric push rod 22. The second motor 17 is arranged inside the fixed block 16, and the output end of the second motor 17 is transmission-connected to the movable rod 18. The second gear 19 is fixedly mounted on the top of the movable rod 18, and the third gear 20 is engaged with one side of the second gear 19. A fixed ring 21 is fixedly mounted on one end of the connecting tube 5, and two first electric push rods 22 are fixedly mounted on the bottom of the fixed ring 21. A slot is provided on the top of the third gear 20, and the bottom ends of the two first electric push rods 22 are plugged into the slot.

[0036] The mounting tube 4 and the connecting tube 5 are protected at the top of the collecting tube 3 by the fixing block 16. Since the fixing ring 21 is connected to the connecting tube 5, when the connecting tube 5 is inserted into the mounting tube 4, the fixing ring 21 is located at the top of the fixing block 16. The first electric push rod 22 is started to extend so that the bottom end thereof is connected to the slot at the top of the third gear 20, so that the third gear 20 is connected to the connecting tube 5. Then the second motor 17 is started to drive the movable rod 18 to drive the second gear 19 and the third gear 20 to rotate. Through the action of the first electric push rod 22 and the fixing ring 21, when the third gear 20 rotates, it can drive the connecting tube 5 to rotate inside the mounting tube 4, thereby rotating the connecting tube 5 to a suitable position, collecting air at different angles, capturing pollutants from different sources, and improving the accuracy and integrity of the detection data.

[0037] like Figures 7 to 9 As shown, the fixed block 16 is located outside one end of the mounting tube 4 and the connecting tube 5, and is located at the top of the collecting tube 3. A mounting groove is provided inside the fixed block 16, and the second motor 17 is fixedly installed on the inner wall of the bottom of the mounting groove. The top of the movable rod 18 is rotatably connected to the inner wall of the top of the mounting groove. A movable opening is provided on the inner wall of the top of the fixed block 16. The third gear 20 is located in the middle of the fixed block 16 and is located at the top of the mounting tube 4. The upper and lower sides of the third gear 20 are rotatably connected to the inner wall of the movable opening. The end of the connecting tube 5 close to the mounting tube 4 is located in the middle of the third gear 20, the fixing ring 21 is located at the top of the fixed block 16, and the first electric push rod 22 is located on both sides of the connecting tube 5, and one end thereof is located in the middle of the fixed block 16.

[0038] The fixing block 16 is used to protect the connection end of the mounting tube 4 and the connecting tube 5 to prevent the connecting tube 5 from being hit and affecting the detection direction of the connecting tube 5. The second motor 17 is installed conveniently through the mounting groove, so that the second motor 17 can drive the movable rod 18 and the second gear 19 to rotate, so that the movable rod 18 rotates along the inner wall of the top of the mounting groove to maintain stability. When the first electric push rod 22 is connected to the third gear 20, the second gear 19 can drive the third gear 20 to rotate when it rotates, and then the third gear 20 rotates along the inner wall of the movable opening, thereby driving the connecting tube 5 in the middle of the third gear 20 to rotate inside the mounting tube 4, which is convenient for adjusting the direction of the connecting tube 5 and improving the detection effect.

[0039] like Figures 5 and 6 As shown, a connecting block 23 is fixedly installed on the outer side of the top of the fixed block 16, and two fixing grooves are provided on both sides of the connecting block 23. A second electric push rod 24 is fixedly installed inside the two fixing grooves. A movable block is fixedly installed on one end of the second electric push rod 24, and an electric telescopic plate 25 is fixedly installed on one side of the movable block. The second electric push rod 24, the movable block and the electric telescopic plate 25 are all symmetrically arranged with the center of the connecting block 23. The electric telescopic plate 25 is located on both sides of the collecting tube 3, and its bottom is slidably connected to the top of the fixed frame 2.

[0040] The connecting block 23 facilitates the installation of the fixing block 16, so that the fixing block 16 can be located at the top of the collecting pipe 3, protects the connecting end of the installation pipe 4 and the connecting pipe 5, and facilitates adjustment. The second electric push rod 24 is installed through the fixing groove, and the electric telescopic plate 25 facilitates protection of both sides of the collecting pipe 3, prevents the collecting pipe 3 from being impacted and affecting the collection effect. When the collecting pipe 3 needs to be replaced, the first electric push rod 22 is not connected with the third gear 20, the connecting pipe 5 is taken out of the installation pipe 4, the second electric push rod 24 is started to push the electric telescopic plate 25 to move along the top of the fixing frame 2 away from the collecting pipe 3, so that the electric telescopic plate 25 is no longer close to the collecting pipe 3, the electric telescopic plate 25 is started to extend, so that the connecting block 23 drives the fixing block 16 to move upwards to the top of the installation pipe 4, and the collecting pipe 3 is taken off from the fixing frame 2 for replacement, thereby improving the use effect of the collecting pipe 3.

[0041] Working principle: when in use, the two collecting pipes 3 are respectively placed on the two fixing frames 2, the connecting pipe 5 is inserted into the inside of the installation pipe 4, so that the connecting pipe 5 is in communication with the collecting pipe 3, and the elastic connecting pipe 6 is connected with the detection body 1, so as to facilitate detection of the collected air through the detection body 1. The electric telescopic plate 25 is retracted by the first electric push rod 22, the bottom of the electric telescopic plate 25 moves along the top of the fixing frame 2, so that the electric telescopic plate 25 moves to both sides of the collecting pipe 3, the connecting block 23 and the fixing block 16 are moved downwards by the retraction of the electric telescopic plate 25, so that the fixing block 16 moves to the outside of the connecting end of the installation pipe 4 and the connecting pipe 5, and the third gear 20 is located outside the connecting pipe 5, and the fixing ring 21 is located at the top of the fixing block 16. The first electric push rod 22 is started to extend and is inserted into the slot at the top of the third gear 20, so that the third gear 20 is connected with the connecting pipe 5. The second motor 17 is started to drive the movable rod 18 to drive the second gear 19 and the third gear 20 to rotate. Through the action of the first electric push rod 22 and the fixing ring 21, when the third gear 20 rotates, it can drive the connecting pipe 5 to rotate inside the installation pipe 4, so as to rotate the connecting pipe 5 to the appropriate position to collect air at different angles.

[0042] After the angle of the connecting tube 5 is adjusted, the first motor 10 is started to drive the rotating rod 11 and the first gear 12 to rotate along the inner wall of the bottom of the groove, and the first rack 13 and the second rack 14 are moved away from each other along the inner wall of the groove, and the moving block 15 is moved at the moving mouth, driving the fixed frame 2 on both sides of the detection body 1 to drive the collecting tube 3 to move simultaneously along one side of the detection body 1 along the first rack 13 and the second rack 14, so that after the fixed frame 2 is moved to the appropriate position, the elastic connecting tube 6 is stretched or contracted when the fixed frame 2 and the collecting tube 3 are moved, so that the connecting tube 5 on the top of the collecting tube 3 is moved to the position required to be detected, so as to facilitate the collection of air in different directions. After the position adjustment is completed by the control button, the collection and detection can be carried out.

[0043] When the collection tube 3 needs to be replaced, when the first electric push rod 22 is not connected to the third gear 20, the connecting tube 5 is taken out from the mounting tube 4, and then the second electric push rod 24 is started to push the electric telescopic plate 25 to move along the top of the fixing frame 2 in the direction away from the collection tube 3, so that the electric telescopic plate 25 is no longer close to the collection tube 3, and then the electric telescopic plate 25 is started to extend, so that the connecting block 23 drives the fixing block 16 to move upward and move to the top of the mounting tube 4. The collection tube 3 can be removed from the fixing frame 2 for replacement, which is convenient for improving the use effect of the collection tube 3.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. An air pollution detection device, comprising a detection body (1), characterized in that: Both sides of the detection body (1) are provided with a collecting structure; the collecting structure comprises a fixed frame (2), a movable structure, a collecting tube (3), a mounting tube (4), a connecting tube (5), an elastic connecting tube (6) and an adjusting structure; both sides of the detection body (1) are provided with a fixed frame (2); the detection body (1) and the top of the fixed frame (2) are provided with a movable structure; a collecting tube (3) is provided in the middle of the fixed frame (2); an elastic connecting tube (6) is fixedly installed on one side of the collecting tube (3); one end of the elastic connecting tube (6) is connected to the rear side of the detection body (1); a mounting tube (4) is fixedly installed on the top of the collecting tube (3); a connecting tube (5) is provided on the top of the mounting tube (4); the connecting tube (5) is L-shaped; one end of the connecting tube (5) is rotatably connected to the mounting tube (4), and the other end thereof extends to the top of the mounting tube (4); an adjusting structure is provided on the outside of the connecting end of the mounting tube (4) and the connecting tube (5); The mobile structure comprises a mounting block (9), a first motor (10), a rotating rod (11), a first gear (12), a first rack (13), a second rack (14) and a moving block (15); the mounting block (9) is fixedly mounted on the top of the detection body (1); the first motor (10) is arranged inside the top of the mounting block (9); the output end of the first motor (10) is connected to the rotating rod (11); the bottom end of the rotating rod (11) is fixedly mounted with a first gear (12); one side of the first gear (12) is meshed with the first rack (13), and the other side thereof is meshed with the second rack (14); the first rack (13) and the second rack (14) are both fixedly mounted with a moving block (15) on the side away from the first gear (12); The adjustment structure comprises a fixed block (16), a second motor (17), a movable rod (18), a second gear (19), a third gear (20), a fixed ring (21) and a first electric push rod (22); the fixed block (16) is provided with a second motor (17); the output end of the second motor (17) is connected to the movable rod (18); the top of the movable rod (18) is fixedly mounted with a second gear (19); one side of the second gear (19) is meshed with a third gear (20); one end of the connecting tube (5) is fixedly mounted with a fixed ring (21); the bottom of the fixed ring (21) is fixedly mounted with two first electric push rods (22); the top of the third gear (20) is provided with a slot, and the bottom ends of the two first electric push rods (22) are plugged into the slot; The fixed block (16) is located outside one end of the mounting tube (4) and the connecting tube (5), and is located at the top of the collecting tube (3). A mounting groove is provided inside the fixed block (16). The second motor (17) is fixedly installed with the inner wall of the bottom of the mounting groove. The top of the movable rod (18) is rotatably connected to the inner wall of the top of the mounting groove. A movable opening is provided on the inner wall of the top of the fixed block (16). The third gear (20) is located in the middle of the fixed block (16) and is located at the top of the mounting tube (4). The upper and lower sides of the third gear (20) are rotatably connected to the inner wall of the movable opening.

2. The air pollution detection device according to claim 1, characterized in that: A support frame (7) is fixedly mounted on the bottom of the detection body (1), a switch is provided on the front side of the detection body (1), a control button is provided above the switch and located on the front side of the detection body (1), a handle (8) is provided on the top of the movable structure, and the adjustment structure is symmetrically arranged with respect to the center of the detection body (1).

3. The air pollution detection device according to claim 2, characterized in that: The handle (8) is fixedly mounted on the top of the mounting block (9), a groove is provided inside the mounting block (9), the top of the first motor (10) is fixedly mounted on the inner wall of the top of the groove, the bottom of the rotating rod (11) is rotatably connected to the inner wall of the bottom of the groove, the bottoms of the first rack (13) and the second rack (14) are movably connected to the inner wall of the bottom of the groove, both sides of the mounting block (9) are provided with moving openings, the shape of the moving block (15) is L-shaped, one end of the moving block (15) passes through the moving opening and is fixedly mounted on the top of the fixing frame (2), and one side of the fixing frame (2) is slidably connected to the outer side of the detection body (1).

4. The air pollution detection device according to claim 3, characterized in that: One end of the connecting tube (5) close to the mounting tube (4) is located in the middle of the third gear (20), the fixing ring (21) is located on the top of the fixing block (16), and the first electric push rod (22) is located on both sides of the connecting tube (5), and one end thereof is located in the middle of the fixing block (16).

5. The air pollution detection device according to claim 4, characterized in that: A connecting block (23) is fixedly mounted on the outer side of the top of the fixed block (16), two fixing grooves are provided on both sides of the connecting block (23), a second electric push rod (24) is fixedly mounted inside the two fixing grooves, a movable block is fixedly mounted on one end of the second electric push rod (24), and an electric telescopic plate (25) is fixedly mounted on one side of the movable block.

6. The air pollution detection device according to claim 5, characterized in that: The second electric push rod (24), the movable block and the electric telescopic plate (25) are all symmetrically arranged around the center of the connecting block (23). The electric telescopic plate (25) is located on both sides of the collecting tube (3), and its bottom is slidably connected to the top of the fixing frame (2).

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