An angle-adjustable flue gas monitor

Abstract

This utility model discloses an angle-self-adjusting flue gas monitor, relating to the technical field of flue gas monitors. It includes a monitor body and a driven gear. An exhaust fan is installed at the bottom of the monitor body, and a fixed pipe is fixed to the bottom of the exhaust fan. A sleeve is rotatably connected to the bottom of the fixed pipe via a bearing, and an air inlet pipe is fixedly connected to the bottom of the sleeve. This angle-self-adjusting flue gas monitor, through a drive mechanism, can continuously and automatically adjust the angle of the air inlet pipe, thereby increasing the monitoring range. The rotation of the air inlet pipe also drives the drive mechanism. By controlling the forward and reverse rotation of the motor, the rotation of the connecting shaft can be controlled, thereby controlling whether the cleaning mechanism a cleans the inner wall of the air inlet pipe. A cleaned air inlet pipe reduces monitoring errors. The cleaning mechanism b also moves synchronously, cleaning the inner wall of the fixed pipe when the motor rotates counterclockwise.

Description

Technical Field

[0001] This utility model relates to the field of flue gas monitoring technology, specifically to an angle-adjustable flue gas monitoring instrument. Background Technology

[0002] Flue gas is a mixture of gases and particulate matter, and it is a major cause of air pollution in residential areas. The composition of flue gas is complex, including water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, among others. Therefore, it is necessary to collect and monitor flue gas using flue gas monitoring instruments to analyze its specific components.

[0003] As illustrated in announcement number CN215596987U, a flue gas monitoring device that is easy to install and adjust involves installing an angle adjustment mechanism on a mounting block. A second servo motor controls the rotation of a second fixed rotating shaft, thereby controlling the rotation of a control rod along the second fixed rotating shaft. This further adjusts the angle of the monitoring mounting platform mechanism, thus controlling the monitoring angle of the flue gas monitor. The flue gas monitor, which is mounted on a fixed frame, is installed on a U-shaped frame using a fixing pin. The fixing pin also allows adjustment of the flue gas monitor's angle towards the air, satisfying a full-angle monitoring range and greatly improving the adjustability and flexibility of the monitoring device.

[0004] In the above-mentioned scheme, the flue gas monitor is rotated and adjusted by a drive mechanism to expand its monitoring range, thereby collecting and analyzing the surrounding flue gas. However, when the flue gas is sampled through the sampling tube, particulate matter is left inside the sampling tube. When monitoring another location is required, these attached particulate matter will affect the monitoring accuracy of the flue gas monitor. Utility Model Content

[0005] The purpose of this invention is to provide an angle-adjustable flue gas monitor to solve the problem mentioned in the background art that existing flue gas monitors leave particulate matter inside the sampling tube when sampling, and when monitoring another location is required, these attached particulate matter will affect the monitoring accuracy of the flue gas monitor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable flue gas monitor, comprising a monitor body and a driven gear, wherein an exhaust fan is installed at the bottom of the monitor body, and a fixed pipe is fixed at the bottom of the exhaust fan; a sleeve is rotatably connected to the bottom of the fixed pipe via a bearing, and an air inlet pipe is fixedly connected to the bottom of the sleeve; a drive mechanism for rotating the air inlet pipe is provided at the bottom of the monitor body; a connecting shaft is rotatably connected to the top of the air inlet pipe via a bearing; a cleaning mechanism a for cleaning the inside of the air inlet pipe is provided at the bottom of the connecting shaft; and a transmission mechanism for driving its rotation is provided at the top of the connecting shaft; a cleaning structure b for cleaning the inner wall of the fixed pipe is provided inside the fixed pipe.

[0007] Furthermore, the drive mechanism includes a motor fixedly mounted on the bottom of the monitor body, a drive gear fixedly connected to the output end of the motor, a driven gear meshing with the outer side of the drive gear, and the inner side of the driven gear being fixed to the sleeve. The drive gear and the driven gear form a meshing transmission structure.

[0008] Furthermore, the transmission mechanism includes a one-way bearing connected to the top of the connecting shaft, a gear body connected to the outside of the one-way bearing, a gear ring meshing with the outside of the gear body, the top of the gear ring being fixed to the monitoring instrument body, and the gear ring and the gear body forming a meshing transmission structure.

[0009] Furthermore, the cleaning mechanism a includes a bevel gear a fixedly connected to the bottom of the connecting shaft, a bevel gear b meshing with the outer side of the bevel gear a, connecting rods fixed on both sides of the bevel gear b, both ends of the connecting rods being rotatably connected to the air intake pipe via bearings, and a scraper fixedly connected to the outer side of the connecting rods.

[0010] Furthermore, the cleaning mechanism b includes a vertical rod fixedly connected inside the air intake pipe, and the central axis of the vertical rod coincides with the central axis of the fixed pipe. A slider is fixed to the top of the vertical rod, and a moving block is slidably connected to the outside of the slider. A spring abuts against one side of the slider, and one end of the spring abuts against the inside of the moving block.

[0011] Furthermore, a rotating block is rotatably connected to one side of the movable block via a hinge. A tension spring is fixed to one side of the rotating block, and one end of the tension spring is fixed to the movable block. A ring is provided on the outer side of the rotating block, and the outer side of the ring is fixed to the inner wall of the fixed tube. A notch is provided on one side of the ring, and an arc edge is provided at one end of the ring. A cleaning brush is fixed to the other side of the movable block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This angle-adjustable flue gas monitor can drive the air inlet pipe to continuously and automatically adjust its angle through the drive mechanism, thereby increasing the monitoring range. When the air inlet pipe rotates, it will also drive the drive mechanism to move. By controlling the forward and reverse rotation of the motor, the rotation of the connecting shaft can be controlled, thereby controlling whether the cleaning mechanism a cleans the inner wall of the air inlet pipe. The cleaned air inlet pipe can reduce the error during monitoring. The cleaning mechanism b will also move synchronously, cleaning the inner wall of the fixed pipe when the motor rotates counterclockwise.

[0013] 1. The drive mechanism will drive the intake pipe to rotate continuously, thereby sending external gas into the dynamic monitoring instrument body for detection. The intake pipe will also drive the connecting shaft to rotate. When the motor rotates counterclockwise, the connecting shaft will drive the bottom bevel gear a and bevel gear b to mesh, so that the scraper rotates to clean the particles adhering to the inner wall of the intake pipe.

[0014] 2. When the motor rotates clockwise, the rotating block at one end of the moving block will contact the ring through the side away from the hinge. At this time, the moving block will not move. When the motor rotates counterclockwise, the rotating block will contact the arc edge at the notch of the ring through the side close to the hinge. The moving block will move under pressure and drive the cleaning brush to contact the inner wall of the fixed tube, thereby cleaning the inside of the fixed tube synchronously. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixed tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the movable block of this utility model;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the tension spring of this utility model.

[0021] In the diagram: 1. Monitor body; 2. Exhaust fan; 3. Fixed pipe; 4. Sleeve; 5. Air inlet pipe; 6. Motor; 7. Drive gear; 8. Driven gear; 9. Connecting shaft; 10. One-way bearing; 11. Gear body; 12. Gear ring; 13. Bevel gear a; 14. Bevel gear b; 15. Scraper; 16. Connecting rod; 17. Vertical rod; 18. Moving block; 19. Spring; 20. Rotating block; 21. Ring; 22. Tension spring; 23. Cleaning brush. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-3 This utility model provides the following technical solution: an angle-adjustable flue gas monitor, comprising a monitor body 1 and a driven gear 8. An exhaust fan 2 is installed at the bottom of the monitor body 1, and a fixing pipe 3 is fixed to the bottom of the exhaust fan 2. A sleeve 4 is rotatably connected to the bottom of the fixing pipe 3 via a bearing, and an air inlet pipe 5 is fixedly connected to the bottom of the sleeve 4. A drive mechanism for rotating the air inlet pipe 5 is provided at the bottom of the monitor body 1. A connecting shaft 9 is rotatably connected to the top of the air inlet pipe 5 via a bearing, and a cleaning mechanism for the inside of the air inlet pipe 5 is provided at the bottom of the connecting shaft 9. The cleaning mechanism a has a transmission mechanism at the top of the connecting shaft 9 for driving its rotation; the fixed pipe 3 has a cleaning structure b for cleaning its inner wall; when sampling the surrounding gas, the angle self-adjusting flue gas monitor starts the drive mechanism to rotate the air inlet pipe 5, and continuously adjusts the angle automatically. The exhaust fan 2 transmits the suction force through the fixed pipe 3 to the air inlet pipe 5, thereby sucking up and sampling the external gas, and then sending it to the detection component inside the monitor body 1 for detection.

[0024] Please see Figures 1-2 The drive mechanism includes a motor 6 fixedly mounted at the bottom of the monitor body 1. A drive gear 7 is fixedly connected to the output end of the motor 6. A driven gear 8 is meshed with the outer side of the drive gear 7. The inner side of the driven gear 8 is fixed to the sleeve 4. The drive gear 7 and the driven gear 8 form a meshing transmission structure. The motor 6 will drive the drive gear 7 and the driven gear 8 to mesh, so that the driven gear 8 drives the inner sleeve 4 to rotate, and the air inlet pipe 5 at the bottom of the sleeve 4 will also rotate accordingly.

[0025] Please see Figures 1-2The transmission mechanism includes a one-way bearing 10 connected to the top of the connecting shaft 9. A gear body 11 is connected to the outside of the one-way bearing 10. A gear ring 12 is meshed with the outside of the gear body 11. The top of the gear ring 12 is fixed to the monitor body 1. The gear ring 12 and the gear body 11 form a meshing transmission structure. The air intake pipe 5 drives the connecting shaft 9 to rotate. The connecting shaft 9 drives the gear body 11 and the gear ring 12 to mesh, causing the gear body 11 to rotate. When the motor 6 rotates clockwise, the one-way bearing 10 at the top of the connecting shaft 9 will rotate at the top of the connecting shaft 9. Therefore, the connecting shaft 9 will not rotate at this time. Conversely, when the motor 6 rotates counterclockwise, the one-way bearing 10 will not rotate. Therefore, when the gear body 11 and the gear ring 12 mesh, they can drive the connecting shaft 9 to rotate.

[0026] Please see Figures 1-2 The cleaning mechanism a includes a bevel gear a13 fixedly connected to the bottom of the connecting shaft 9. A bevel gear b14 is meshed with the outer side of the bevel gear a13. Connecting rods 16 are fixed on both sides of the bevel gear b14. Both ends of the connecting rods 16 are rotatably connected to the air intake pipe 5 through bearings. A scraper 15 is fixedly connected to the outer side of the connecting rods 16. The connecting shaft 9 will drive the bottom bevel gear a13 to mesh with the bevel gear b14. The bevel gear b14 will drive the connecting rods 16 and the scraper 15 to rotate, thereby cleaning the particulate matter adhering to the inner wall of the air intake pipe 5. At this time, the exhaust fan 2 can be set to reverse. The airflow generated by the reversed exhaust fan 2 will blow out the cleaned dust particles in the air intake pipe 5, reducing its interference with monitoring.

[0027] In this way, the connecting rod 16 can be controlled to clean the inside of the intake pipe 5 by adjusting the forward and reverse rotation of the motor 6, thereby reducing the wear on the inner wall of the intake pipe 5 and the scraper 15. Example 2:

[0028] Please see Figures 1-6 Based on Embodiment 1, a cleaning mechanism b for synchronously cleaning the interior of the fixed tube 3 is also disclosed. Its specific structure is as follows: The interior of the fixed tube 3 is provided with a cleaning structure b for cleaning its inner wall. The cleaning mechanism b includes a vertical rod 17 fixedly connected inside the air inlet pipe 5, and the central axis of the vertical rod 17 coincides with the central axis of the fixed tube 3. A slider is fixed to the top of the vertical rod 17, and a moving block 18 is slidably connected to the outside of the slider. A spring 19 is abutted on one side of the slider, and one end of the spring 19 abuts against the inside of the moving block 18. A rotating block 20 is rotatably connected to one side of the moving block 18 via a hinge. A tension spring 22 is fixed to one side of the rotating block 20, and one end of the tension spring 22 is fixed to the moving block 18. A ring 21 is provided on the outside of the rotating block 20. The outside of the ring 21 is fixed to the inner wall of the fixed tube 3. A notch is opened on one side of the ring 21, and an arc edge is provided at one end of the ring 21. A cleaning brush 23 is fixed on the other side of the moving block 18.

[0029] Please see Figures 1-6 This angle-adjustable flue gas monitor, when the intake pipe 5 rotates, also drives the vertical rod 17 to rotate, and the vertical rod 17 also drives the top moving block 18 to rotate. When the motor 6 rotates clockwise, the rotating block 20 at one end of the moving block 18 will contact the ring 21 through the side away from the hinge. The rotating block 20 will rotate when it contacts the notch of the ring 21, and stretch the tension spring 22. Therefore, the moving block 18 will not move at this time, and the cleaning brush 23 at the other end of the moving block 18 will not contact the fixed pipe 3. Conversely, when the motor 6 rotates counterclockwise, the rotating block 20 will contact the arc edge of the notch in the ring 21 near the hinge. At this time, one side of the rotating block 20 will abut against the end of the moving block 18 and will not rotate. When it rotates to the inside of the ring 21, the moving block 18 will be squeezed and move to the outside of the top slider of the vertical rod 17, thereby squeezing the spring 19. The cleaning brush 23 at one end of the moving block 18 will then contact the inner wall of the fixed tube 3, thereby cleaning the inside of the fixed tube 3 synchronously.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An angle-adjustable flue gas monitor, comprising a monitor body (1) and a driven gear (8), wherein a fan (2) is installed at the bottom of the monitor body (1), and a fixing pipe (3) is fixed at the bottom of the fan (2). Its features are: The bottom of the fixed tube (3) is rotatably connected to the sleeve (4) via a bearing. The bottom of the sleeve (4) is fixedly connected to the air inlet pipe (5). The bottom of the monitor body (1) is provided with a drive mechanism to drive the air inlet pipe (5) to rotate. The top of the air inlet pipe (5) is rotatably connected to the connecting shaft (9) via a bearing. The bottom of the connecting shaft (9) is provided with a cleaning mechanism a for cleaning the inside of the air inlet pipe (5). The top of the connecting shaft (9) is provided with a transmission mechanism for driving its rotation. The fixed tube (3) is provided with a cleaning structure b for cleaning its inner wall.

2. The angle-adjustable flue gas monitor according to claim 1, characterized in that: The drive mechanism includes a motor (6) fixedly installed at the bottom of the monitor body (1). The output end of the motor (6) is fixedly connected to a drive gear (7). The outer side of the drive gear (7) is meshed with a driven gear (8). The inner side of the driven gear (8) is fixed to the sleeve (4). The drive gear (7) and the driven gear (8) form a meshing transmission structure.

3. The angle-self-adjusting flue gas monitor according to claim 1, characterized in that: The transmission mechanism includes a one-way bearing (10) connected to the top of the connecting shaft (9). A gear body (11) is connected to the outside of the one-way bearing (10). A gear ring (12) is meshed with the outside of the gear body (11). The top of the gear ring (12) is fixed to the monitoring instrument body (1). The gear ring (12) and the gear body (11) form a meshing transmission structure.

4. The angle-self-adjusting flue gas monitor according to claim 1, characterized in that: The cleaning mechanism a includes a bevel gear a (13) fixedly connected to the bottom of the connecting shaft (9), a bevel gear b (14) meshing with the outer side of the bevel gear a (13), a connecting rod (16) fixed on both sides of the bevel gear b (14), both ends of the connecting rod (16) being rotatably connected to the air intake pipe (5) through bearings, and a scraper (15) fixedly connected to the outer side of the connecting rod (16).

5. The angle-self-adjusting flue gas monitor according to claim 1, characterized in that: The cleaning mechanism b includes a vertical rod (17) fixedly connected inside the air intake pipe (5), and the central axis of the vertical rod (17) coincides with the central axis of the fixed pipe (3). A slider is fixed at the top of the vertical rod (17), and a moving block (18) is slidably connected to the outside of the slider. A spring (19) abuts on one side of the slider, and one end of the spring (19) abuts against the inside of the moving block (18).

6. The angle-self-adjusting flue gas monitor according to claim 5, characterized in that: One side of the movable block (18) is rotatably connected to a rotating block (20) via a hinge. A tension spring (22) is fixed to one side of the rotating block (20), and one end of the tension spring (22) is fixed to the movable block (18). A ring (21) is provided on the outer side of the rotating block (20). The outer side of the ring (21) is fixed to the inner wall of the fixed tube (3). A notch is provided on one side of the ring (21), and an arc edge is provided at one end of the ring (21). A cleaning brush (23) is fixed to the other side of the movable block (18).

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