PM2.5 environment monitoring device

Abstract

The invention relates to the technical field of environment monitoring, and discloses a PM2.5 environment monitoring device which comprises a shell, a fixing mechanism is installed outside the shell, a gas collecting box is installed in the shell, and five gas monitoring chambers are formed in the gas collecting box. A U-shaped pipeline is fixedly connected to the lower ends of the two gas monitoring chambers and located on the lower portion of the shell, and a first gas collecting rod and a second gas collecting pipe are fixedly connected to the two sides of the upper portion of the U-shaped pipeline correspondingly. According to the PM2.5 environment monitoring device, the gas collecting box is driven by the motor to circularly drive air in the gas monitoring chamber to monitor, in the monitoring process, the motor drives the gear to rotate, the gear drives the cleaning blade to extrude out the monitored gas in the gas monitoring chamber, and then in the air monitoring process, the PM2.5 environment is monitored. The monitored air is effectively prevented from flowing back to the interior of the gas monitoring chamber, so that the accuracy deviation of PM2.5 in the monitored air before and after is avoided, and the monitoring accuracy is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental monitoring, and in particular to a PM2.5 environmental monitoring device. Background Art

[0002] Fine particulate matter is also called fine particles, fine particles, and PM2.5. Fine particulate matter refers to particles in the ambient air with an aerodynamic equivalent diameter of less than or equal to 2.5 microns. It can remain suspended in the air for a long time. The higher its concentration in the air, the more serious the air pollution. Although PM2.5 is only a very small component in the earth's atmosphere, it has an important impact on air quality and visibility. Compared with coarser atmospheric particulate matter, PM2.5 has a small particle size, a large area, and strong activity. It is easy to carry toxic and harmful substances (for example, heavy metals, microorganisms, etc.), and it has a long residence time in the atmosphere and a long transportation distance, so it has a greater impact on human health and atmospheric environmental quality. Therefore, in the process of environmental monitoring, it is necessary to use monitoring devices to monitor and process the PM2.5 content.

[0003] In a common monitoring device, the monitoring instrument is installed outdoors, and an air pump is used to cyclically collect the gas in the air into the monitoring instrument. The PM2.5 content in the quantitative air is measured by the instrument, so that the environmental quality can be accurately monitored. However, during the air quality cycle monitoring process, the air contains dust, and the dust is blown into the monitoring instrument by the air pump. The dust has a sticky property, which causes the dust to adhere to the inside of the monitoring instrument, thereby affecting the air circulation. If the monitored gas continues to stay in the monitoring instrument, the subsequent monitoring results will be easily affected by the staying gas, which will lead to deviations in the monitoring results. Therefore, we have proposed a PM2.5 environmental monitoring device. Summary of the invention

[0004] In view of the shortcomings of existing PM2.5 environmental monitoring devices, the present invention provides a PM2.5 environmental monitoring device, which has the advantages of squeezing out the monitored gas by cleaning blades to improve the monitoring accuracy, and solves the problems raised in the above background technology.

[0005] The present invention provides the following technical solution: a PM2.5 environmental monitoring device, comprising a shell, a fixing mechanism is installed on the outside of the shell, a gas collecting box is installed on the inside of the shell, five groups of gas monitoring chambers are opened inside the gas collecting box, the lower ends of two groups of gas monitoring chambers and located at the lower part of the shell are fixedly connected with U-shaped pipes, the two sides of the upper part of the U-shaped pipe are respectively fixedly connected with a first gas collection rod and a second gas collection pipe, a gear is installed on the side of the shell through a bracket, a tooth chain is installed on the outside of the gear, a cleaning blade is fixedly connected to the outside of the tooth chain, and a mounting seat is installed on the upper part of the shell and located on one side of the gear.

[0006] Preferably, the fixing mechanism includes a first connecting plate, which is fixedly connected to the outside of the shell, an internal movable sleeve of the lower end of the first connecting plate is connected to a cross bar, second connecting plates are fixedly connected to both sides of the cross bar, and external movable sleeves at both ends of the cross bar are connected to damping springs.

[0007] Preferably, the second connecting plate is snap-fitted onto the slide rail, and the outer shell is located directly above the crossbar.

[0008] Preferably, a gas collecting funnel is movably sleeved on the upper portion of the second gas collecting pipe, a wind vane is installed on the top of the gas collecting funnel, and the gas collecting funnel is conical.

[0009] Preferably, a fan is installed inside the first gas collection rod, and a sensing device for monitoring wind force is installed outside the fan.

[0010] Preferably, one set of gas monitoring chambers is arranged between a group of U-shaped pipes and the first gas collecting rod, and another set of gas monitoring chambers is arranged between the other side of the U-shaped pipe and the second gas collecting pipe.

[0011] Preferably, a monitor for monitoring PM2.5 is installed inside the mounting seat, and the inner side of the monitor is in contact with the upper part of the gas collection box.

[0012] Preferably, an opening is provided on one side of the gas monitoring chamber, and the opening is aligned with one side of the cleaning blade, and the cleaning blade is movably sleeved inside the gas monitoring chamber.

[0013] Preferably, a group of motors are installed at the lower part of the gas collection box and one side of the gear, and timing control devices are installed outside the two groups of motors.

[0014] Compared with the existing PM2.5 environmental monitoring device, the present invention has the following beneficial effects:

[0015] 1. The PM2.5 environmental monitoring device is provided with a fixing mechanism installed on the outside of the shell, and the fixing mechanism includes a damping spring. After the device is installed, the damping spring improves its buffering performance and effectively avoids interference of vibration on environmental monitoring.

[0016] 2. The PM2.5 environmental monitoring device can drive the gas collection box to rotate through a motor. When the gas collection box drives the gas monitoring room to move between the U-shaped pipe, the first gas collection rod and the second gas collection tube, the wind vane installed on the upper part of the second gas collection tube drives the angle of the gas collection funnel to adjust according to the different wind directions. At the same time, the gas collection funnel drives the gas to be transported to the inside of the gas monitoring room through natural wind. When there is no wind, start the fan, which drives the gas circulation and also drives the air to be collected, thereby improving the convenience of monitoring gas collection. At the same time, the equipment can cyclically monitor the PM2.5 content in the air.

[0017] 3. The PM2.5 environmental monitoring device monitors the air inside the gas monitoring chamber by circulating it through a gas collection box driven by a motor. During the monitoring process, the motor drives the gears to rotate, and the gears drive the cleaning blades to squeeze out the gas inside the gas monitoring chamber after monitoring. Then, during the air monitoring process, it effectively prevents the monitored air from flowing back into the gas monitoring chamber, causing deviations in the accuracy of PM2.5 in the air before and after monitoring, thereby improving its monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the cleaning device of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the main body of the present invention;

[0021] Figure 4 It is a schematic cross-sectional view of the gas collection device of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the main body of the present invention from top view.

[0023] In the figure: 1. outer shell; 2. first connecting plate; 3. cross bar; 4. second connecting plate; 5. damping spring; 6. gas collecting box; 7. gas monitoring chamber; 8. U-shaped pipe; 9. first gas collecting rod; 10. second gas collecting pipe; 11. gas collecting funnel; 12. weather vane; 13. fan; 14. gear; 15. tooth chain; 16. cleaning blade; 17. mounting base; 18. monitor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A PM2.5 environmental monitoring device includes a shell 1, a fixing mechanism is installed on the outside of the shell 1, and the fixing mechanism drives the device to be installed and positioned. A gas collection box 6 is installed inside the shell 1. When the gas collection box 6 rotates, the position of the gas monitoring chamber 7 can be driven to adjust. Five groups of gas monitoring chambers 7 are opened inside the gas collection box 6. The gas monitoring chambers 7 collect gas. The lower ends of the two groups of gas monitoring chambers 7 and the lower part of the shell 1 are fixedly connected with a U-shaped pipe 8, and the two sides of the upper part of the U-shaped pipe 8 are respectively fixedly connected with a first gas collection rod 9 and the second gas collecting pipe 10, the first gas collecting rod 9 and the second gas collecting pipe 10 drive the gas to be transported to the inside of the gas monitoring chamber 7, a gear 14 is installed on the side of the outer shell 1 through a bracket, a tooth chain 15 is installed on the outside of the gear 14, and a cleaning blade 16 is fixedly connected to the outside of the tooth chain 15. When the cleaning blade 16 rotates, the cleaning blade 16 can allow the gas inside the gas monitoring chamber 7 to escape, and a mounting seat 17 is installed on the upper part of the outer shell 1 and on one side of the gear 14, and the mounting seat 17 monitors the gas passing through the inside of the gas monitoring chamber 7.

[0026] See also Figure 1 The fixing mechanism includes a first connecting plate 2, which is fixedly connected to the outside of the shell 1. The lower end of the first connecting plate 2 is internally movably sleeved with a cross bar 3, and the two sides of the cross bar 3 are fixedly connected with a second connecting plate 4. The two ends of the cross bar 3 are externally movably sleeved with damping springs 5. After the second connecting plate 4 is installed on the positioning device by controlling the second connecting plate 4, a damping spring 5 is installed on the outside of the cross bar 3. Under the elastic action of the damping spring 5, the first connecting plate 2 can be pushed to move to the middle of the cross bar 3, and the buffering capacity of the equipment can be ensured when in use, thereby effectively avoiding the influence of position offset on the monitoring result during PM2.5 monitoring.

[0027] See also Figure 1 The second connecting plate 4 is clamped on the slide rail, and the housing 1 is located directly above the cross bar 3. When the device is installed on the slide rail through the second connecting plate 4, the second connecting plate 4 maintains stability when spliced ​​at the upper position of the slide rail.

[0028] See also Figure 4A gas collecting funnel 11 is movably sleeved on the upper part of the second gas collecting pipe 10, and a wind vane 12 is installed on the top of the gas collecting funnel 11. The gas collecting funnel 11 is conical and is installed on the upper part of the second gas collecting pipe 10 through the gas collecting funnel 11, and the wind vane 12 is installed on the upper part of the gas collecting funnel 11. When the gas circulates, when the gas passes through the wind vane 12, the wind vane 12 drives the gas collecting funnel 11 in the direction of wind flow. At the same time, the gas collecting funnel 11 drives the gas to be transmitted to the inside of the second gas collecting pipe 10 in a concentrated manner, and then the equipment can automatically collect the air in a cycle, thereby improving the air receiving efficiency when monitoring PM2.5.

[0029] See also Figure 4 A fan 13 is installed inside the first gas collection rod 9, and a sensing device for monitoring the wind force is installed outside the fan 13. The fan 13 is installed inside the first gas collection rod 9. When the gas collection funnel 11 stops receiving air, the sensing device does not receive the model of air circulation and starts the fan 13 at the same time. The fan 13 drives the gas circulation, and then during the air quality monitoring process, the air environment can be monitored all the time.

[0030] See also Figure 4 One set of opened gas monitoring chambers 7 is arranged between a group of U-shaped pipes 8 and a first gas collecting rod 9, and another set of opened gas monitoring chambers 7 is arranged between the other side of the U-shaped pipe 8 and the second gas collecting pipe 10, and are respectively connected to the first gas collecting rod 9 and the second gas collecting pipe 10 through the U-shaped pipe 8. At the same time, when air is injected into the first gas collecting rod 9 or the second gas collecting pipe 10, the air can be transmitted to the inside of the gas monitoring chamber 7 in turn. At the same time, under the auxiliary transmission action of the first gas collecting rod 9, the sufficiency of gas injection is improved.

[0031] See also Figure 1 A monitor 18 for monitoring PM2.5 is installed inside the mounting seat 17, and the inner side of the monitor 18 is in contact with the upper part of the gas collecting box 6. By installing the mounting seat 17 on the outside of the outer shell 1 and arranging the monitor 18 inside the mounting seat 17, when the gas monitoring chamber 7 filled with air moves to the lower end of the monitor 18, the monitor 18 can monitor the air inside the gas monitoring chamber 7, thereby improving the air monitoring efficiency.

[0032] See also Figure 1An opening is provided on one side of the gas monitoring chamber 7, and the opening is aligned with one side of the cleaning blade 16. The cleaning blade 16 is movably sleeved inside the gas monitoring chamber 7. By starting the gear 14, the gear 14 drives the toothed chain 15 to rotate, and the toothed chain 15 drives the cleaning blade 16 to rotate. When the cleaning blade 16 rotates, the cleaning blade 16 can be flipped to the inside of the gas monitoring chamber 7, so as to squeeze out the gas inside the gas monitoring chamber 7 after the monitoring is completed, thereby ensuring the adequacy of the gas extrusion and avoiding the gas monitoring chamber 7 being filled with the previously monitored gas, which affects the monitoring result.

[0033] See also Figure 1 A group of motors are installed at the bottom of the gas collecting box 6 and one side of the gear 14. A timing control device is installed on the outside of the two groups of motors. The timing control device is installed on the outside of the gas collecting box 6 and the cleaning blade 16. When the motor installed at the bottom of the gas collecting box 6 is started, the gas monitoring chamber 7 is controlled to rotate, so that the collected gas can be transported to the monitoring area. At the same time, the gear 14 stops moving, and the cleaning blade 16 is controlled to move to the inside of the gas monitoring chamber 7 to avoid interference with the movement of the gas collecting box 6 by the cleaning blade 16. At the same time, when monitoring the air, the gear 14 is started at the same time, and the gear 14 drives the cleaning blade 16 to move downward. The cleaning blade 16 can move to the inside of the gas monitoring chamber 7. At the same time, the cleaning blade 16 squeezes out the air inside the gas monitoring chamber 7 to ensure that the subsequent collection of gas will not be interfered with by the front-end collection of gas.

[0034] Working principle: When in use, the second connecting plate 4 is installed in the area to be monitored, and the damping spring 5 is arranged on the side of the first connecting plate 2. The damping spring 5 provides elastic buffering force to the first connecting plate 2 to ensure that the equipment will not be disturbed by vibration during monitoring. At the same time, the air is transported to the inside of the gas monitoring chamber 7 through the gas collection funnel 11 or in a windless state, the fan 13 is started, that is, the gas can be transported to the inside of the gas monitoring chamber 7, and the motor installed at the lower end of the gas collection box 6 is started. The motor drives the gas monitoring chamber 7 to move to the lower end of the mounting seat 17, and the monitor 18 monitors the gas quality inside the gas monitoring chamber 7. After the monitoring is completed, the operation is repeated. At the same time, the gas monitoring chamber 7 after monitoring moves to the lower end of the cleaning blade 16, and the gear 14 is started. The gear 14 drives the cleaning blade 16 to rotate, and the cleaning blade 16 can squeeze out the gas inside the gas monitoring chamber 7. At this point, the monitoring equipment can continuously monitor the quality inside the area in a cycle.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PM2.5 environmental monitoring device, comprising a housing (1), a fixing mechanism being installed on the outside of the housing (1), and a gas collecting box (6) being installed on the inside of the housing (1), characterized in that: Five groups of gas monitoring chambers (7) are provided inside the gas collection box (6); the lower ends of two groups of gas monitoring chambers (7) are fixedly connected to a U-shaped pipe (8) located at the lower part of the outer shell (1); the two sides of the upper part of the U-shaped pipe (8) are respectively fixedly connected to a first gas collection rod (9) and a second gas collection pipe (10); a gear (14) is installed on the side of the outer shell (1) through a bracket; a toothed chain (15) is installed on the outside of the gear (14); a cleaning blade (16) is fixedly connected to the outside of the toothed chain (15); and a mounting seat (17) is installed on the upper part of the outer shell (1) and located on one side of the gear (14).

2. A PM2.5 environmental monitoring device according to claim 1, characterized in that: The fixing mechanism comprises a first connecting plate (2), wherein the first connecting plate (2) is fixedly connected to the outside of the housing (1), a cross bar (3) is movably sleeved internally at the lower end of the first connecting plate (2), second connecting plates (4) are fixedly connected to both sides of the cross bar (3), and damping springs (5) are movably sleeved externally at both ends of the cross bar (3).

3. A PM2.5 environmental monitoring device according to claim 2, characterized in that: The second connecting plate (4) is snap-fitted onto the slide rail, and the outer shell (1) is located directly above the crossbar (3).

4. A PM2.5 environmental monitoring device according to claim 1, characterized in that: A gas collecting funnel (11) is movably sleeved on the upper part of the second gas collecting pipe (10), a wind vane (12) is installed on the top of the gas collecting funnel (11), and the gas collecting funnel (11) is conical.

5. A PM2.5 environment monitoring device according to claim 1, characterized in that: A fan (13) is installed inside the first gas collection rod (9), and a sensing device for monitoring the wind force is installed outside the fan (13).

6. A PM2.5 environment monitoring device according to claim 1, characterized in that: One set of opened gas monitoring chambers (7) is arranged between a group of U-shaped pipes (8) and a first gas collecting rod (9), and another set of opened gas monitoring chambers (7) is arranged between the other side of the U-shaped pipe (8) and a second gas collecting pipe (10).

7. A PM2.5 environment monitoring device according to claim 1, characterized in that: A monitor (18) for monitoring PM2.5 is installed inside the mounting seat (17), and the inner side of the monitor (18) is in contact with the upper part of the gas collection box (6).

8. A PM2.5 environment monitoring device according to claim 1, characterized in that: An opening is provided on one side of the gas monitoring chamber (7), and the opening is aligned with one side of a cleaning blade (16), and the cleaning blade (16) is movably sleeved inside the gas monitoring chamber (7).

9. A PM2.5 environment monitoring device according to claim 1, characterized in that: A set of motors are installed at the lower part of the gas collection box (6) and one side of the gear (14), and timing control devices are installed outside the two sets of motors.

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