Road dust accumulation load monitor

Abstract

The utility model belongs to the field of environment monitoring equipment, and particularly relates to a road dust accumulation load monitor which comprises a machine shell and a sampling monitoring unit connected with the machine shell, the machine shell comprises a bottom plate, a top plate and side plates, the machine shell is arranged on the top of an automobile, the top plate is arranged in an upward inclined mode from front to back, and the sampling monitoring unit is connected with the machine shell. The top plate and the bottom plate are in transition connection through an arc-shaped plate, the bottom plate is provided with a group of magnetic attraction assemblies, and the bottom plate is connected with the top of an automobile through the magnetic attraction assemblies, so that the wind resistance borne by the monitor installed at the top of the automobile can be effectively reduced, the installation is convenient and fast, the adaptability is high, a special vehicle does not need to be arranged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of environmental monitoring equipment, and in particular relates to a road dust load monitoring instrument. Background Art

[0002] Road dust is one of the main reasons for the increase of particulate matter in air pollution. Roads run through every city and are closely related to us. However, the existing road dust monitoring equipment is not highly adaptable, or the vehicle needs to be modified for use, and it cannot be installed as needed. In particular, it is affected by the structure of the monitoring equipment. The wind resistance is large during driving, and specially adapted vehicles need to be installed for air monitoring, which has a high cost. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a road dust load monitor, which can effectively reduce the wind resistance of the monitor installed on the top of the car, is easy to install and has high adaptability, does not require a special vehicle, and reduces the cost of use.

[0004] The specific technical solution adopted by the utility model is:

[0005] A road dust load monitor comprises a casing and a sampling monitoring unit connected to the casing, wherein the casing comprises a bottom plate, a top plate and side plates, and the key point is that the casing is arranged on the top of a car, the top plate is arranged to be tilted upward from front to rear, and the top plate and the bottom plate are connected by means of an arc plate transition, a group of magnetic suction components are arranged on the bottom plate, and the bottom plate is connected to the top of the car by means of the magnetic suction components.

[0006] The sampling monitoring unit includes an upper sampling monitoring module and a lower sampling monitoring module. The upper sampling monitoring module includes an upper sampling tube connected to the casing and having a sampling port located above the car. The lower sampling monitoring module includes a lower sampling tube connected to the casing and having a sampling port located below the car. The lower sampling tube is fixed to the car body by means of a pipe fixture with a magnetic suction component thereon.

[0007] The magnetic attraction component comprises a soft plastic shell with a group of partition cavities and magnets arranged in the partition cavities.

[0008] The housing is provided with a humidity sensor, and the upper sampling tube is provided with a heating belt.

[0009] The upsampling monitoring module further comprises a particle measuring instrument, a first air filter, a first air volume sensor and a first fan which are connected in sequence, and the particle measuring instrument is connected to the air outlet of the upsampling pipe.

[0010] The downsampling monitoring module also includes an air inlet duct, a dehumidification duct, a dust accumulation detector, a second air filter, a second air volume sensor and a second fan connected in sequence, and the air inlet duct is connected to the air outlet of the downsampling pipe.

[0011] The dehumidification pipe is arranged to be inclined upward, and the lower end of the dehumidification pipe is connected to the side wall of the air inlet pipe.

[0012] The air outlet end of the air inlet duct is connected to the third fan, a fan protector is arranged between the air inlet duct and the third fan, and a wind speed sensor is connected to the air inlet duct.

[0013] The top plate is provided with an openable and closable door plate, and the upper surface of the door plate is flush with the upper surface of the top plate.

[0014] The bottom of the bottom plate is connected to the magnetic attraction component by means of a support plate, and the bottom plate and the support plate form a bridge structure.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts a technical solution that the top plate of the casing is inclined upward from front to rear, and the top plate and the bottom plate are connected by means of an arc plate, which effectively reduces the wind resistance of the casing when the car is running. Therefore, a group of magnetic suction components are arranged on the bottom plate of the casing, and the requirements for the stability of the casing during operation can be met by connecting the magnetic suction components to the top of the car. There is no need to modify the car or equip a special vehicle, and the casing can be installed as needed. The monitor can be quickly removed when the road dust monitoring work is not performed, and other uses of the car will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the layout of the sampling and monitoring unit in the casing;

[0019] Figure 3 It is a structural schematic diagram of the magnetic suction component;

[0020] Figure 4 This is a schematic diagram of the use state of the utility model;

[0021] In the accompanying drawings, 1. casing, 101. bottom plate, 102. top plate, 103. side plate, 104. curved plate, 105. door plate, 106. support plate, 2. magnetic suction component, 201. soft plastic shell, 202. magnet, 3. GPS locator, 4. wireless communicator, 5. upper sampling tube, 6. lower sampling tube, 7. pipe holder, 8. particle measuring instrument, 9. first air filter, 10. first air volume sensor, 11. first fan, 12. air inlet duct, 13. dehumidification duct, 14. dust accumulation detector, 15. second air filter, 16. second air volume sensor, 17. second fan, 18. third fan, 19. fan protector, 20. wind speed sensor. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0023] Specific implementation examples Figure 1-4 As shown, a road dust load monitor comprises a housing 1 and a sampling monitoring unit connected to the housing 1. The housing 1 comprises a bottom plate 101, a top plate 102 and a side plate 103. The key is that the housing 1 is arranged on the top of the car, the top plate 102 is arranged to be tilted upward from front to rear, and the top plate 102 and the bottom plate 101 are transitionally connected by means of an arc plate 104 to form a streamlined structure, which can effectively reduce the wind resistance suffered by the monitor during the running of the car. A group of magnetic suction components 2 are arranged on the bottom plate 101. The installation method of the magnetic suction components 2 adsorbed on the top of the car can ensure the stability of the connection between the monitor and the car, without the need to modify the car or equip a special vehicle, so that the monitor can be installed as needed. The monitor can be quickly removed outside the road dust monitoring work without affecting other uses of the car, which can effectively reduce the use cost of the monitor. The housing 1 is also provided with a GPS locator 3 and a wireless communicator 4. The GPS locator 3 sends the location data to the base station by means of the wireless communicator 4 to lock the polluted area, so that the automation and integration of the monitor are higher. The wireless communicator 4 is a DTU wireless communication device.

[0024] A data acquisition board is installed on the housing 1 , and the sampling monitoring unit feeds back the collected data to the data acquisition board, and the data acquisition board sends the data to the base station via the wireless communicator 4 .

[0025] Furthermore, the sampling monitoring unit includes an upper sampling monitoring module and a lower sampling monitoring module. The upper sampling monitoring module includes an upper sampling tube 5 connected to the casing 1 and with a sampling port located above the car. The lower sampling monitoring module includes a lower sampling tube 6 connected to the casing 1 and with a sampling port located below the car. The lower sampling tube 6 is fixed to the car body with the help of a pipe fixture 7 with a magnetic suction component 2 thereon. The upper sampling and lower sampling are integrated on the casing 1, and the lower sampling tube 6 is adsorbed on the car body with the help of the magnetic suction component 2 on the pipe fixture 7. The installation is convenient and the installation position of the lower sampling tube 6 on the car body can be adjusted as needed, which is convenient for adjusting the layout of the lower sampling tube 6 on the car body. There is no need to drill additional holes on the car body and it does not affect the normal closure of the car trunk.

[0026] Furthermore, the magnetic attraction assembly 2 includes a soft plastic shell 201 with a group of partition cavities and a magnet 202 disposed in the partition cavities. When installing, a relatively flat position of the vehicle body is selected for magnetic attraction. The soft plastic shell 201 can be bent to fit the installation position as much as possible, so that the magnet 202 in the soft plastic shell 201 is adsorbed on the vehicle body, effectively improving the stability of the installation. The material of the soft plastic shell 201 is rubber.

[0027] Furthermore, a humidity sensor is provided on the casing 1, and a heating belt is provided on the upper sampling tube 5. The air humidity is detected by the humidity sensor. When the humidity is high, the heating belt is turned on in time to heat the upper sampling tube 5 to keep the collected samples dry and accurate.

[0028] Furthermore, the upsampling monitoring module also includes a particle matter meter 8, a first air filter 9, a first air volume sensor 10 and a first fan 11 which are connected in sequence via an air pipe. The particle matter meter 8 is connected to the air outlet of the upsampling tube 5. When working, the first fan 11 is turned on, and the outside air enters the particle matter meter 8 through the upsampling tube 5. The particle matter meter 8 measures the particle matter concentration of the sample collected by the upsampling tube 5. The air measured by the particle matter meter 8 is drawn to the first air filter 9 for filtration and then passes through the first air volume sensor 10, and then is discharged through the first fan 11. The first air filter 9 filters out the particles in the air to ensure the cleanliness of the air entering the first air volume sensor 10 and prevent the particles from having an adverse effect on the first air volume sensor 10.

[0029] Furthermore, the downsampling monitoring module also includes an air inlet duct 12, a dehumidification duct 13, a dust accumulation detector 14, a second air filter 15, a second air volume sensor 16 and a second fan 17 which are connected in sequence by means of an air pipe. The air inlet duct 12 is connected to the air outlet of the downsampling tube 6; the downsampling tube 6 is a hose, which extends from the air inlet duct 12 to the bottom of the car to extract air behind the wheels, and the air behind the wheels is sent to the dehumidification duct 13, the dust accumulation detector 14, the second air filter 15, and the second air volume sensor 16 in sequence, and then discharged by the second fan 17. The dehumidification duct 13 dehumidifies and dries the air to improve the accuracy of detection, the dust accumulation detector 14 detects dust in the air, the second air filter 15 filters particulate matter in the air, and the clean air enters the second air volume sensor 16 for flow statistics.

[0030] Furthermore, the dehumidification duct 13 is arranged to be tilted upward, the lower end of the dehumidification duct 13 is connected to the side wall of the air inlet duct 12, and the upper end of the dehumidification duct 13 is connected to the air inlet of the dust accumulation detector 14. The dust accumulation detector 14 and the particle measuring instrument 8 are installed on the same mounting plate and are arranged perpendicular to the horizontal plane. The installation method of the dehumidification duct 13, the dust accumulation detector 14, and the particle measuring instrument 8 can effectively prevent internal dust accumulation. The dehumidification duct 13 is connected to the air pipe by means of an L-shaped quick-plug connector, which is convenient for disassembly and assembly. The dehumidification duct 13 is a straight pipe with a heating belt on it, and the sampled air is dried by heating.

[0031] Furthermore, the outlet end of the air inlet duct 12 is connected to the third fan 18, and a fan protector 19 is also provided between the air inlet duct 12 and the third fan 18. The air inlet duct 12 is connected to a wind speed sensor 20. The diameter of the air inlet duct 12 and the diameter of the lower sampling tube 6 are both larger than the diameter of the dehumidification duct 13. When working, the third fan 18 is turned on before the second fan 17. The diameter of the lower sampling tube 6 is large, and the sampling range is large, which improves the smooth collection of road dust and air. The wind speed sensor 20 measures the wind speed in the air inlet duct 12. After the wind speed is stable, that is, the third fan 18 works stably, the second fan 17 is turned on. The second fan 17 extracts the air sample effectively collected by the lower sampling tube 6 to detect the dust accumulation amount and the air volume, thereby improving the detection accuracy and helping to reduce the loss of precision equipment. The interface between the air inlet duct 12, the fan protector 19, and the third fan 18 is connected by a clamp, which is convenient for disassembly.

[0032] The first fan 11 and the second fan 17 are both vortex air pumps, and the third fan 18 is a variable frequency fan.

[0033] Furthermore, an openable and closable door panel 105 is provided on the top panel 102, and the upper surface of the door panel 105 is flush with the upper surface of the top panel 102. One side of the door panel 105 is hinged to the side panel 103, and the other side is locked to the side panel 103 by means of a lock. When inspecting or disassembling the internal parts of the casing 1, the door panel 105 can be opened to provide sufficient space for inspecting and disassembling parts.

[0034] Furthermore, the bottom of the base plate 101 is connected to the magnetic component 2 by means of a support plate 106, and the base plate 101 and the support plate 106 form a bridge-type structure, so that there is a gap between the base plate 101 and the top of the car, and the staff can reach into the gap to take the monitor; support plates 106 are respectively arranged on both sides of the base plate 101, and the support plates 106 are in a Z-shaped structure. The upper plane of the support plate 106 is connected to the base plate 101, and the lower plane is connected to the magnetic component 2. The base plate 101 is connected to a total of 4 magnetic components 2 by means of the support plates 106, and the magnetic components 2 are respectively located on both sides of the base plate 101.

Claims

1. A road dust load monitor, comprising a housing (1) and a sampling monitoring unit connected to the housing (1), wherein the housing (1) comprises a bottom plate (101), a top plate (102) and a side plate (103), and characterized in that: The housing (1) is arranged on the top of the car, the top plate (102) is arranged to be inclined upward from front to rear, and the top plate (102) and the bottom plate (101) are transitionally connected by means of an arc plate (104), a group of magnetic suction components (2) are arranged on the bottom plate (101), and the bottom plate (101) is connected to the top of the car by means of the magnetic suction components (2).

2. A road dust load monitor according to claim 1, characterized in that: The sampling monitoring unit comprises an upper sampling monitoring module and a lower sampling monitoring module. The upper sampling monitoring module comprises an upper sampling tube (5) connected to the housing (1) and having a sampling port located above the vehicle. The lower sampling monitoring module comprises a lower sampling tube (6) connected to the housing (1) and having a sampling port located below the vehicle. The lower sampling tube (6) is fixed to the vehicle body by means of a pipe fixer (7) having a magnetic suction component (2) thereon.

3. A road dust load monitor according to claim 1 or 2, characterized in that: The magnetic attraction component (2) comprises a soft plastic shell (201) having a group of partition cavities therein and a magnet (202) arranged in the partition cavities.

4. A road dust load monitor according to claim 2, characterized in that: The housing (1) is provided with a humidity sensor, and the upper sampling tube (5) is provided with a heating belt.

5. A road dust load monitor according to claim 2, characterized in that: The upsampling monitoring module further comprises a particle measuring instrument (8), a first air filter (9), a first air volume sensor (10) and a first fan (11) which are connected in sequence, and the particle measuring instrument (8) is connected to the air outlet of the upsampling pipe (5).

6. A road dust load monitor according to claim 2, characterized in that: The downsampling monitoring module also includes an air inlet duct (12), a dehumidification duct (13), a dust accumulation detector (14), a second air filter (15), a second air volume sensor (16) and a second fan (17) which are connected in sequence, and the air inlet duct (12) is connected to the air outlet of the downsampling tube (6).

7. A road dust load monitor according to claim 6, characterized in that: The dehumidification pipe (13) is arranged to be inclined upward, and the lower end of the dehumidification pipe (13) is connected to the side wall of the air inlet pipe (12).

8. A road dust load monitor according to claim 6, characterized in that: The air outlet end of the air inlet duct (12) is connected to the third fan (18), a fan protector (19) is also provided between the air inlet duct (12) and the third fan (18), and a wind speed sensor (20) is connected to the air inlet duct (12).

9. A road dust load monitor according to claim 1, characterized in that: The top plate (102) is provided with an openable and closable door plate (105), and the upper surface of the door plate (105) is flush with the upper surface of the top plate (102).

10. A road dust load monitor according to claim 1, characterized in that: The bottom of the bottom plate (101) is connected to the magnetic attraction component (2) by means of a support plate (106), and the bottom plate (101) and the support plate (106) form a bridge structure.

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