Online detection device for atmospheric pollution source pollutants

By designing an online pollutant detection device that includes detection components and cleaning components, the problems of reduced detection accuracy and equipment failure caused by pollutant adhesion are solved, and real-time cleaning and efficient detection are achieved.

CN120652054APending Publication Date: 2025-09-16HARBIN UNIV
View PDF 0 Cites 1 Cited by

Patent Information

Application Number
CN202510876478.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Pollutants in the air adhere to and remain inside the testing equipment, affecting the testing results and equipment operation, and causing malfunctions.

Method used

An online detection device for pollutants from atmospheric pollution sources was designed. It includes a detection component and a cleaning component. Components such as a negative pressure fan, a drive arm, a cleaning brush, and a cleaning roller are used to achieve real-time cleaning of the detection sensor. The pollutants are removed by combining the coordinated work of the infusion component and the drive component.

Benefits of technology

The accuracy of detection and the service life of the equipment are improved, ensuring the long-term stable operation of the detection device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120652054A_ABST
    Figure CN120652054A_ABST
Patent Text Reader

Abstract

The invention discloses an atmospheric pollution source pollutant on-line detection device, which belongs to the field of pollution detection devices, and comprises a support seat, a detection part, a cleaning part, a mounting cylinder and a support rod, the installation cylinder is installed on the supporting seat through a supporting rod, the top of the installation cylinder is connected with a blocking cover through a supporting rod, the detection component and the cleaning component are both arranged in the installation cylinder, an air guide hopper is arranged in the installation cylinder, and the detection component and the cleaning component are both arranged in the installation cylinder. Air is sucked into the detection box and passes through the detection sensor in the detection box, so that the concentration of pollutants in the air is detected in real time, and the pollution condition of the environment is conveniently monitored. The bottom cleaning brush and the side cleaning roller in the cleaning ring are driven by the driving part to rotate to clean the detection sensor and the detection cylinder, and adhered pollutants are cleaned, so that the subsequent detection accuracy is improved, and the service life of the device is prolonged. In the cleaning process, the dust shield blocks the air inlet, and the situation that the cleaning effect is affected due to the fact that inlet air carries dust is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the field of pollution detection devices, and more specifically, to an online detection device for pollutants from atmospheric pollution sources. Background Art

[0002] Air pollutants typically consist of gaseous, volatile, semi-volatile, and particulate matter. These pollutants have complex compositions, with organic gaseous pollutants typically containing hydrocarbons, oxygen-containing organic compounds, nitrogen-containing organic compounds, and sulfur-containing organic compounds. When testing for air pollution, airborne pollutants pass through the interior of the testing equipment and its sensors, completing the test. During the extended testing process, airborne pollutants can adhere to the equipment and remain on the sensors, affecting not only the test results but, when accumulated to a sufficient level, can also affect the operation of the testing equipment, causing it to malfunction or even malfunction. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose an online detection device for pollutants from atmospheric pollution sources, which can clean the inside of the detection equipment to prevent pollutants from affecting the detection results and the detection equipment, thereby improving the accuracy of detection and the service life of the equipment.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides an online detection device for pollutants from atmospheric pollution sources, comprising a support seat, a detection component, a cleaning component, a mounting tube and a support rod; the mounting tube is mounted on the support seat via the support rod, the top of the mounting tube is connected to a shield via a support rod, the detection component and the cleaning component are both arranged in the mounting tube, an air guide scoop is provided in the mounting tube, and the detection component and the cleaning component are both arranged in the mounting tube.

[0006] In a preferred technical solution of the present invention, the detection component includes a detection box and a negative pressure fan; the air guide scoop is connected to the top of the detection box, the bottom of the detection box is connected to an air guide duct, the negative pressure fan is arranged in the air guide duct, and a detection component is arranged in the detection box.

[0007] In a preferred technical solution of the present invention, the detection assembly includes a detection tube, a base plate, a detection sensor, a bottom support rod and a telescopic rod; the bottom support rod fixes the base plate in the detection box, the detection sensor is fixed on the base plate, and an air hole is provided on the base plate; one end of the telescopic rod is fixed to the inner top wall of the detection box, and the other end of the telescopic rod is connected to the side wall of the detection tube through a connecting rod.

[0008] In a preferred technical solution of the present invention, the cleaning component includes a driving arm, a cleaning block, a bottom cleaning brush, and a side cleaning roller; one end of the driving arm is fixed to the inner wall of the detection box, the cleaning block is connected to the other end of the driving arm, the bottom cleaning brush is rotatably connected to the bottom of the cleaning block, the side cleaning roller has a hollow ring structure inside, and the side cleaning roller is sleeved on the cleaning block.

[0009] In a preferred technical solution of the present invention, the cleaning component also includes an infusion part, which includes an infusion tube and an infusion pump; the driving arm is a telescopic tube with a hollow interior, the infusion tube is arranged inside the driving arm, one end of the infusion tube is connected to the infusion pump, and the other end of the infusion tube extends to the top of the cleaning block.

[0010] In a preferred technical solution of the present invention, it also includes a driving member, which includes a first spline shaft, a first spline sleeve, a transmission shaft, a worm, a worm wheel, a driving rod and a first driving gear; the first spline sleeve is sleeved on the first spline shaft, and the first spline sleeve is arranged in the driving arm, and the first spline shaft extends from the driving arm to the cleaning block; the worm is fixed to the end of the first spline shaft, the transmission shaft is rotatably connected to the inside of the cleaning block, the worm wheel is sleeved on the transmission shaft, the worm is meshed with the worm wheel, and the lower end of the transmission shaft is fixedly connected to the bottom cleaning brush, the side wall of the cleaning block is provided with a driving port, the driving rod is rotatably connected to the inside of the cleaning block through the bracket, the first driving gear is fixed on the driving rod, and the inner side of the side cleaning roller is provided with a first driving tooth, and the first driving gear passes through the driving roller and meshes with the first driving tooth; the transmission shaft and the driving rod are connected by a transmission belt.

[0011] In a preferred technical solution of the present invention, the driving component also includes a driving motor, which is fixed to the side wall of the mounting tube. The power output end of the driving motor is connected to a second spline sleeve, which is sleeved on the outside of the second spline shaft. A first bevel gear is fixed on the second spline shaft. A socket is provided at the end of the first spline sleeve, and the second spline shaft is plugged into the socket.

[0012] In a preferred technical solution of the present invention, it also includes a dust cover, which is an annular cover, and a lifting member is provided at the bottom of the dust cover, and the lifting member includes a driving ring, a third spline shaft, a third spline sleeve, a second driving gear and a second bevel gear. The driving ring is fixed to the bottom of the dust cover, and the third spline shaft is rotatably connected to the inside of the mounting tube through a bearing. The lower end of the third spline shaft is fixedly connected to the second bevel gear, and the second bevel gear is engaged with the first bevel gear. The third spline sleeve is sleeved on the third spline shaft, and the second driving gear is fixed on the third spline sleeve. The driving ring is fixed to the bottom of the dust cover, and the inner side of the driving ring is provided with a second driving tooth, and the second driving gear is engaged with the second driving tooth. The outer side of the driving ring is threaded with the inner wall of the mounting tube.

[0013] In a preferred technical solution of the present invention, an upper positioning plate and a lower positioning plate are fixed to the third spline sleeve, the upper positioning plate abuts against the upper surface of the drive ring, and the lower positioning plate abuts against the lower surface of the drive ring.

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

[0015] The present invention provides an online detection device for pollutants from atmospheric pollution sources. By sucking air into a detection box, the air passes through the detection sensor in the detection box, and then detects the concentration of pollutants in the air in real time, which facilitates monitoring of environmental pollution. In addition, during a long period of monitoring and detection, pollutants and dust in the air will adhere to the detection sensor, affecting the accuracy of the detection. At this time, the cleaning component in the device can clean the detection sensor. The bottom cleaning brush and the side cleaning roller in the cleaning ring are driven by the driving member to rotate to clean the detection sensor and the detection cylinder. The cleaning liquid transported by the infusion tube is used to clean the adhering pollutants, so as to improve the accuracy of subsequent detection and increase the service life of the device. During the cleaning process, the dust shield blocks the air inlet to prevent the intake air from carrying dust and affecting the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an online detection device for pollutants from air pollution sources provided by a specific embodiment of the present invention;

[0017] Figure 2 yes Figure 1 A in the middle is an enlarged structural diagram;

[0018] Figure 3 yes Figure 2 The enlarged structural diagram at B in the middle;

[0019] Figure 4 yes Figure 2 The enlarged structural diagram at C in the middle;

[0020] Figure 5 yes Figure 2 Enlarged structural diagram at point D in the middle.

[0021] In the picture:

[0022] 11. Support base, 12. Support rod, 13. Mounting cylinder, 14. Shield, 21. Air guide hopper, 22. Detection box, 23. Air guide duct, 24. Negative pressure fan, 25. Bottom plate, 26. Detection sensor, 27. Detection cylinder, 28. Telescopic rod, 31. Drive arm, 32. Cleaning block, 33. Bottom cleaning brush, 34. Side cleaning roller, 35. Infusion tube, 36. Infusion pump, 41. First spline shaft, 42. First spline sleeve, 43 , worm, 44, worm wheel, 45, drive shaft, 46, drive rod, 47, first drive gear, 48, drive belt, 49, drive motor, 40, jack, 51, second spline sleeve, 52, second spline shaft, 53, first bevel gear, 54, second bevel gear, 61, third spline shaft, 62, third spline sleeve, 63, second drive gear, 64, drive ring, 65, dust cover, 66, upper positioning plate, 67, lower positioning plate. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, an embodiment provides an online detection device for pollutants from atmospheric pollution sources, including a support seat 11, a detection component, a cleaning component, a mounting tube 13 and a support rod 12; the mounting tube 13 is mounted on the support seat 11 through the support rod 12, and the top of the mounting tube 13 is connected to a shield 14 through a support rod, the detection component and the cleaning component are both arranged in the mounting tube 13, and an air guide scoop 21 is opened in the mounting tube 13, and the detection component and the cleaning component are both arranged in the mounting tube 13.

[0025] External air enters the detection component from the air guide scoop 21 for real-time online monitoring. The air pollution level and pollution situation are transmitted to the external monitoring personnel through the detection of the monitoring device. The shield 14 on the mounting tube 13 can prevent rainwater from above from falling into the mounting tube 13. After the device has been testing for a long time, pollutants in the air will adhere to the detection component in the mounting tube 13, affecting the accuracy of the detection and the service life of the detection component. After a period of detection, the cleaning component starts to clean the detection component to remove pollutants adhering to the detection component, thereby improving the accuracy of the detection, reducing the accumulation of stains and pollutants, and increasing the service life of the device.

[0026] Furthermore, the testing components include a testing box 22 and a negative pressure blower 24. An air guide 21 is connected to the top of the testing box 22, and an air duct 22 is connected to the bottom of the testing box 22. The negative pressure blower 24 is located within the duct 22, and the testing components are located within the testing box 22. The testing components are located within the testing box 22, and the negative pressure blower 24 provides negative pressure to the testing box 22, drawing external air through the air guide 21 and into the testing box 22 for continuous testing.

[0027] Furthermore, the detection assembly includes a detection tube 27, a base plate 25, a detection sensor 26, a bottom support rod 12 and a telescopic rod 28; the bottom support rod 12 fixes the base plate 25 in the detection box 22, the detection sensor 26 is fixed on the base plate 25, and an air hole is provided on the base plate 25; one end of the telescopic rod 28 is fixed to the inner top wall of the detection box 22, and the other end of the telescopic rod 28 is connected to the side wall of the detection tube 27 through a connecting rod.

[0028] During testing, telescopic rod 28 drives detection tube 27 to attach to base plate 25. The interior of detection tube 27 and base plate 25 form a testing space within which detection sensor 26 resides. Detection tube 27 also ensures smooth airflow through the testing space. Air flows through detection sensor 26, which measures the real-time air pollution status. After testing, the air is discharged through the air vents in base plate 25 and into air duct 22.

[0029] Furthermore, the cleaning components include a driving arm 31, a cleaning block 32, a bottom cleaning brush 33, and a side cleaning roller 34; one end of the driving arm 31 is fixed to the inner wall of the detection box 22, the cleaning block 32 is connected to the other end of the driving arm 31, the bottom cleaning brush 33 is rotatably connected to the bottom of the cleaning block 32, the side cleaning roller 34 has a hollow ring structure inside, and the side cleaning roller 34 is sleeved on the cleaning block 32.

[0030] During the continuous detection process, when a certain amount of contaminants and dust accumulates on the detection sensor 26 and the detection cylinder 27, the cleaning component can be activated for cleaning. During cleaning, the telescopic rod 28 raises the detection cylinder 27, at which point the drive arm 31 extends, carrying the cleaning block 32 to the top of the bottom plate 25. At this time, the bottom cleaning brush 33 contacts the detection sensor 26, and the telescopic rod 28 lowers the detection cylinder 27. The inner wall of the detection cylinder 27 contacts the side cleaning roller 34, and the drive component drives the side cleaning roller 34 and the bottom cleaning brush 33 to rotate, cleaning the detection sensor 26 and the detection cylinder 27.

[0031] Furthermore, the cleaning component also includes an infusion part, which includes an infusion tube 35 and an infusion pump 36; the driving arm 31 is a telescopic tube with a hollow interior, and the infusion tube 35 is arranged inside the driving arm 31, one end of the infusion tube 35 is connected to the infusion pump 36, and the other end of the infusion tube 35 extends to the top of the cleaning block 32.

[0032] During the cleaning process, the infusion pump 36 draws cleaning liquid from the outside and delivers it to the top of the cleaning block 32, cooperating with the side cleaning rollers 34 and the bottom cleaning brush 33 to achieve better cleaning effects.

[0033] Furthermore, it also includes a driving member, which includes a first spline shaft 41, a first spline sleeve 42, a transmission shaft 45, a worm 43, a worm wheel 44, a driving rod 47 and a first driving gear 47; the first spline sleeve 42 is sleeved on the first spline shaft 41, and the first spline sleeve 42 is arranged in the driving arm 31, and the first spline shaft 41 extends from the driving arm 31 to the cleaning block 32; the worm 43 is fixed to the end of the first spline shaft 41, the transmission shaft 45 is rotatably connected to the inside of the cleaning block 32, and the worm wheel 44 is sleeved on the transmission shaft 45, the worm 43 is meshed with the worm wheel 44, the lower end of the transmission shaft 45 is fixedly connected to the bottom cleaning brush 33, the side wall of the cleaning block 32 is provided with a driving port, the driving rod 47 is rotatably connected to the inside of the cleaning block 32 through the bracket, the first driving gear 47 is fixed on the driving rod 47, the inner side of the side cleaning roller 34 is provided with a first driving tooth, the first driving gear 47 passes through the driving roller and meshes with the first driving tooth; the transmission shaft 45 and the driving rod 47 are connected by a transmission belt 48.

[0034] During cleaning, an external force drives the first spline sleeve 42 to rotate, which in turn drives the first spline shaft 41 to rotate, causing the worm 43 to rotate accordingly. The worm 43 then drives the worm wheel 44 to rotate, causing the transmission shaft 45 to rotate accordingly. The rotating transmission shaft 45 drives the bottom cleaning brush 33 to rotate on the one hand, and drives the drive rod 47 to rotate through the transmission belt 48 on the other hand. The rotating drive rod 47 drives the side cleaning roller 34 to rotate through the first drive gear 47, thereby realizing the operation of the cleaning components. After cleaning is completed, the drive arm 31 retracts with the cleaning block 32. The configuration of the first spline sleeve 42 and the first spline shaft 41 enables it to extend and retract along with the drive arm 31 and to transmit power.

[0035] Furthermore, the drive component also includes a drive motor 49, which is fixed to the side wall of the mounting tube 13. The power output end of the drive motor 49 is connected to a second spline sleeve 51, which is sleeved on the outside of the second spline shaft 52. The second spline shaft 52 is fixed with a first bevel gear 53. The end of the first spline sleeve 42 is provided with a socket 40, and the second spline shaft 52 is plugged into the socket 40. During cleaning, the second spline shaft 52 extends from the second spline sleeve 51 until the end of the second spline shaft 52 is inserted into the socket 40 at the end of the first spline sleeve 42, and the two are tightly connected. The rotation of the drive motor 49 drives the second spline sleeve 51 to rotate, thereby driving the cleaning component. After cleaning is completed, the first spline shaft 41 retracts with the cleaning block 32, and the second spline shaft 52 also retracts, and the second spline shaft 52 is separated from the first spline sleeve 42.

[0036] Furthermore, it also includes a dust cover 65, which is an annular cover. A lifting piece is provided at the bottom of the dust cover 65, and the lifting piece includes a drive ring 64, a third spline shaft 61, a third spline sleeve 62, a second drive gear 63 and a second bevel gear 54. The drive ring 64 is fixed to the bottom of the dust cover 65, and the third spline shaft 61 is rotatably connected to the inside of the mounting tube 13 through a bearing. The lower end of the third spline shaft 61 is fixedly connected to the second bevel gear 54, and the second bevel gear 54 is engaged with the first bevel gear 53. The third spline sleeve 62 is sleeved on the third spline shaft 61, and the second drive gear 63 is fixed on the third spline sleeve 62. The drive ring 64 is fixed to the bottom of the dust cover 65, and the inner side of the drive ring 64 is provided with a second drive tooth, and the second drive gear 63 is engaged with the second drive tooth. The outer side of the drive ring 64 is threaded with the inner wall of the mounting tube 13.

[0037] Before cleaning, the second spline shaft 52 is first shortened so that the first bevel gear 53 and the second bevel gear 54 are in contact and meshing. At this time, the drive motor 49 drives, and the rotating first bevel gear 53 drives the second bevel gear 54 to rotate, and then drives the third spline sleeve 62 and the third spline shaft 61 to rotate. The rotating second drive gear 63 drives the drive ring 64 to rotate. The outer side of the drive ring 64 is threadedly engaged with the inner wall of the mounting tube 13. The rotating drive ring 64 then rises with the dust screen until the dust screen hits the baffle 14, sealing the air inlet space between the baffle 14 and the mounting tube 13. The dust cover 65 can prevent dust and pollutants in the air from entering during the cleaning process, avoiding them from affecting the cleaning effect. Then the second spline shaft 52 is extended and inserted into the socket 40, and the first bevel gear 53 and the second bevel gear 54 are separated, and the previous cleaning transmission process is repeated to achieve cleaning. After cleaning is completed, reset is completed according to the above-mentioned driving method.

[0038] Furthermore, an upper positioning plate 66 and a lower positioning plate 67 are fixed to the third spline sleeve 62. The upper positioning plate 66 abuts against the upper surface of the drive ring 64, and the lower positioning plate 67 abuts against the lower surface of the drive ring 64. The upper positioning plate 66 and the lower positioning plate 67 enable the third spline sleeve 62 and the second drive gear 63 to move synchronously when the drive ring 64 moves up and down, maintaining contact with the drive ring 64.

[0039] Other technologies of this embodiment adopt existing technologies.

[0040] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various modifications or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An online detection device for pollutants from air pollution sources, characterized by: It comprises a support base (11), a detection component, a cleaning component, a mounting cylinder (13) and a support rod (12); The mounting tube (13) is mounted on the support seat (11) via a support rod (12); the top of the mounting tube (13) is connected to a shield (14) via a support rod; the detection component and the cleaning component are both arranged in the mounting tube (13); an air guide hopper (21) is provided in the mounting tube (13); and the detection component and the cleaning component are both arranged in the mounting tube (13).

2. The online detection device for air pollution sources according to claim 1, characterized in that: The detection component includes a detection box (22) and a negative pressure fan (24); The air guide hopper (21) is connected to the top of the detection box (22), the bottom of the detection box (22) is connected to the air guide pipe (22), the negative pressure fan (24) is arranged in the air guide pipe (22), and the detection box (22) is provided with a detection component.

3. The online detection device for air pollution sources according to claim 2, characterized in that: The detection assembly comprises a detection cylinder (27), a bottom plate (25), a detection sensor (26), a bottom support rod (12) and a telescopic rod (28); The bottom support rod (12) fixes the bottom plate (25) in the detection box (22). The detection sensor (26) is fixed on the bottom plate (25), and the bottom plate (25) is provided with a ventilation hole; One end of the telescopic rod (28) is fixed to the inner top wall of the detection box (22), and the other end of the telescopic rod (28) is connected to the side wall of the detection cylinder (27) through a connecting rod.

4. The online detection device for air pollution sources according to claim 3, characterized in that: The cleaning component comprises a driving arm (31), a cleaning block (32), a bottom cleaning brush (33), and a side cleaning roller (34); One end of the driving arm (31) is fixed to the inner wall of the detection box (22), the cleaning block (32) is connected to the other end of the driving arm (31), the bottom cleaning brush (33) is rotatably connected to the bottom of the cleaning block (32), the side cleaning roller (34) has a hollow annular structure, and the side cleaning roller (34) is sleeved on the cleaning block (32).

5. The online detection device for air pollution sources according to claim 4, characterized in that: The cleaning component further includes an infusion component, which includes an infusion tube (35) and an infusion pump (36); The driving arm (31) is a telescopic tube with a hollow interior. One end of the infusion tube (35) is connected to the infusion pump (36), and the other end of the infusion tube (35) extends to the top of the cleaning block (32).

6. The online detection device for air pollution sources according to claim 5, characterized in that: Also included is a driving member, which includes a first spline shaft (41), a first spline sleeve (42), a transmission shaft (45), a worm (43), a worm wheel (44), a driving rod (47), and a first driving gear (47); The first spline sleeve (42) is sleeved on the first spline shaft (41), and the first spline sleeve (42) is arranged in the driving arm (31), and the first spline shaft (41) extends from the driving arm (31) into the cleaning block (32); The worm (43) is fixed to the end of the first spline shaft (41), the transmission shaft (45) is rotatably connected to the inside of the cleaning block (32), the worm wheel (44) is sleeved on the transmission shaft (45), the worm (43) is meshed with the worm wheel (44), the lower end of the transmission shaft (45) is fixedly connected to the bottom cleaning brush (33), the side wall of the cleaning block (32) is provided with a driving port, the driving rod (47) is rotatably connected to the inside of the cleaning block (32) through a bracket, the first driving gear (47) is fixed to the driving rod (47), the inner side of the side cleaning roller (34) is provided with a first driving tooth, the first driving gear (47) passes through the driving roller and meshes with the first driving tooth; The transmission shaft (45) and the driving rod (47) are connected to each other via a transmission belt (48).

7. The online detection device for air pollution sources according to claim 6, characterized in that: The driving component further includes a driving motor (49), which is fixed to the side wall of the mounting tube (13). The power output end of the driving motor (49) is connected to a second spline sleeve (51), which is sleeved on the outside of a second spline shaft (52). A first bevel gear (53) is fixed on the second spline shaft (52). An insertion hole (40) is provided at the end of the first spline sleeve (42), and the second spline shaft (52) is plugged into and fitted with the insertion hole (40).

8. The online detection device for air pollution sources according to claim 7, characterized in that: The dust shield (65) is an annular cover. A lifting member is provided at the bottom of the dust shield (65). The lifting member includes a driving ring (64), a third spline shaft (61), a third spline sleeve (62), a second driving gear (63) and a second bevel gear (54). The driving ring (64) is fixed to the bottom of the dust shield (65), the third spline shaft (61) is rotatably connected to the inside of the mounting cylinder (13) through a bearing, the lower end of the third spline shaft (61) is fixedly connected to the second bevel gear (54), and the second bevel gear (54) is meshed with the first bevel gear (53). The third spline sleeve (62) is sleeved on the third spline shaft (61), and the second drive gear (63) is fixed on the third spline sleeve (62). The drive ring (64) is fixed to the bottom of the dust cover (65), the inner side of the drive ring (64) is provided with a second drive tooth, the second drive gear (63) is engaged with the second drive tooth, and the outer side of the drive ring (64) is threadedly matched with the inner wall of the mounting tube (13).

9. The online detection device for air pollution sources according to claim 8, characterized in that: An upper positioning plate (66) and a lower positioning plate (67) are fixed on the third spline sleeve (62), the upper positioning plate (66) abuts against the upper surface of the drive ring (64), and the lower positioning plate (67) abuts against the lower surface of the drive ring (64).

Citation Information

Cited By

  • Packaging bag defect detection device based on visual imaging

    CN121068485A