Indoor environment monitoring device

Abstract

The utility model relates to the technical field of indoor environment monitoring, in particular to an indoor environment monitoring device which comprises a shell, a display screen is arranged on the outer wall of one side of the shell, a handle is fixedly connected to the outer wall of one side of the shell, and a circuit board is fixedly connected to the inner wall of one side of the shell. A circuit board is arranged in the shell, a PM2.5 sensor and a formaldehyde sensor are arranged on one side of the circuit board, a partition plate is fixedly connected to the interior of the shell, the ends, away from the circuit board, of the PM2.5 sensor and the formaldehyde sensor penetrate through one side of the partition plate, and a second ventilation groove is formed in the side, away from the first ventilation groove, of the shell. According to the monitoring device, the PM2.5 sensor and the formaldehyde sensor can be cleaned in the ventilation process, the situation that more dust adheres to the surfaces of the PM2.5 sensor and the formaldehyde sensor to affect the monitoring result of the PM2.5 sensor and the formaldehyde sensor is avoided, and the accuracy of monitoring data of the whole monitoring device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to indoor environment monitoring technical field, concretely is indoor environment monitoring device. BACKGROUND

[0002] Indoor environment monitoring device is a kind of for monitoring the numerical value of formaldehyde, PM2.5 and other pollutants in indoor environment, so as to make corresponding solution to improve the auxiliary device of indoor environment, it has been widely used in residential places, office areas, teaching room etc.

[0003] Through the search, the China utility model patent with announcement number CN208505368U discloses an indoor environment monitoring device, including shell, air passage, air suction fan, formaldehyde sensor, PM2.5 sensor, combustible gas sensor, temperature and humidity sensor, controller, display screen and alarm loudspeaker.

[0004] The above-mentioned patent still has the following shortcomings by synthesizing prior art: because formaldehyde sensor, PM2.5 sensor and other sensors in indoor environment monitoring device are in contact with polluted gas for a long time, there are more dust impurities on their surfaces, if they are not cleaned regularly, it will cause the monitoring result error of the whole indoor environment monitoring device to be larger, cannot meet the monitoring demand of people to indoor environment.Therefore, an indoor environment monitoring device is needed to solve the above problems. UTILITY MODEL CONTENT

[0005] Based on the deficiencies of the prior art mentioned in the above background art, the utility model provides an indoor environment monitoring device.

[0006] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0007] An indoor environment monitoring device, including the shell, the one side outer wall of the shell is provided with display screen, the one side outer wall of the shell is fixedly connected with handle, the one side inner wall of the shell is fixedly connected with circuit board, the one side of the circuit board is provided with PM2.5 sensor and formaldehyde sensor respectively, the inside of the shell is fixedly connected with baffle, PM2.5 sensor and formaldehyde sensor are passed from the one side of the baffle, the one side of the shell remote from the first ventilation slot is equipped with the second ventilation slot;

[0008] The inside of the shell is provided with ventilation assembly;

[0009] The inside of the shell is provided with cleaning assembly for dedusting PM2.5 sensor and formaldehyde sensor.

[0010] Preferably, a sealing groove is provided on one side of the housing, the sealing groove is connected to the second ventilation groove, and the inner walls on both sides of the sealing groove are rotatably connected to cover plates via damping shafts.

[0011] Preferably, the ventilation assembly includes a motor fixedly connected to the inner wall of one side of the housing, a bushing fixedly connected to the output end of the motor, and fan blades evenly distributed in a circular pattern fixedly connected to the outer circumference of the bushing.

[0012] Preferably, the cleaning component includes a threaded screw fixedly connected to the output end of the motor, and a threaded sleeve is threadedly connected to the outer circumferential wall of the threaded screw.

[0013] Preferably, a vertical plate is fixedly connected to the top inner wall of the housing, a guide post is fixedly connected to one side outer wall of the vertical plate, a guide cylinder is slidably connected to the outer circumference of the guide post, the guide cylinder is fixedly connected to the threaded sleeve, an mounting plate is fixedly connected to the bottom outer wall of the guide cylinder, and a cleaning pad for dust removal of the PM2.5 sensor and the formaldehyde sensor is provided on one side of the mounting plate.

[0014] Preferably, a sleeve is fixedly connected to one side of the outer wall of the housing, an air intake tube is inserted into the inside of the sleeve, and a guide tube is fixedly connected to one end of the sleeve, with the guide tube located on one side of the PM2.5 sensor.

[0015] Preferably, an arc-shaped plate is fixedly connected to one side of the outer wall of the partition, and a ash discharge groove is provided on one side of the housing. The ash discharge groove is located at the end of the arc-shaped plate, and a sealing plate is snapped into the inside of the ash discharge groove.

[0016] With the above structure, this utility model has the following advantages compared with the prior art: When people start the motor to drive the fan blades to rotate and accelerate the flow rate of gas inside the housing, the threaded screw inside the housing will also rotate. The rotation of the threaded screw can cause the threaded sleeve connected to its outer wall to drive the mounting plate and cleaning pad to move horizontally. This enables the cleaning of PM2.5 sensor and formaldehyde sensor during ventilation, avoiding the situation where the surface of PM2.5 sensor and formaldehyde sensor is covered with a lot of dust, which affects the monitoring results. This further improves the accuracy of the monitoring data of the entire monitoring device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall rear structure of this utility model.

[0019] Figure 3This is a schematic diagram of the internal structure of the shell of this utility model after cross-section.

[0020] Figure 4 This is a schematic diagram of the internal partition of the shell of this utility model after disassembly.

[0021] Figure 5 This is a half-sectional plan view of the sleeve and suction pipe of this utility model.

[0022] In the diagram: 1. Housing; 2. Display screen; 3. Sleeve; 4. Suction pipe; 5. Handle; 6. First ventilation slot; 7. Cover plate; 8. Sealing plate; 9. Ash discharge slot; 10. Second ventilation slot; 11. Sealing slot; 12. Guide pipe; 13. PM2.5 sensor; 14. Vertical plate; 15. Threaded screw; 16. Guide cylinder; 17. Guide column; 18. Threaded sleeve; 19. Mounting plate; 20. Cleaning pad; 21. Arc plate; 22. Formaldehyde sensor; 23. Bushing; 24. Motor; 25. Fan blade; 26. Circuit board; 27. Partition. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 In this embodiment of the utility model, an indoor environment monitoring device includes a housing 1, a display screen 2 is provided on one outer wall of the housing 1, a handle 5 is fixedly connected to one outer wall of the housing 1, a circuit board 26 is fixedly connected to one inner wall of the housing 1, a PM2.5 sensor 13 and a formaldehyde sensor 22 are respectively provided on one side of the circuit board 26, a partition 27 is fixedly connected inside the housing 1, the ends of the PM2.5 sensor 13 and the formaldehyde sensor 22 away from the circuit board 26 pass through one side of the partition 27, and a second ventilation slot 10 is provided on the side of the housing 1 away from the first ventilation slot 6;

[0025] The interior of housing 1 is equipped with a ventilation assembly;

[0026] The housing 1 is equipped with a cleaning component for removing dust from the PM2.5 sensor 13 and the formaldehyde sensor 22. This component can clean the PM2.5 sensor 13 and the formaldehyde sensor 22 during ventilation, preventing the surface of the PM2.5 sensor 13 and the formaldehyde sensor 22 from being affected by excessive dust, thus further improving the accuracy of the monitoring data of the entire monitoring device.

[0027] Furthermore, a sealing groove 11 is provided on one side of the housing 1. The sealing groove 11 is connected to the second ventilation groove 10. The inner walls on both sides of the sealing groove 11 are rotatably connected to the cover plate 7 through the damping shaft.

[0028] Furthermore, the ventilation component includes a motor 24 fixedly connected to the inner wall of one side of the housing 1. The output end of the motor 24 is fixedly connected to a bushing 23. The outer circumferential wall of the bushing 23 is fixedly connected to fan blades 25 that are evenly distributed in a circular pattern. The motor 24 can drive the fan blades 25 to rotate, thereby accelerating the airflow rate inside the housing 1, which is more conducive to the monitoring of air by the PM2.5 sensor 13 and the formaldehyde sensor 22. The type of motor 24 is a forward and reverse motor, which can drive the cleaning component to reciprocate.

[0029] Furthermore, the cleaning assembly includes a threaded screw 15 fixedly connected to the output end of the motor 24. A threaded sleeve 18 is threadedly connected to the outer circumference of the threaded screw 15. A vertical plate 14 is fixedly connected to the top inner wall of the housing 1. A guide post 17 is fixedly connected to one side outer wall of the vertical plate 14. A guide cylinder 16 is slidably connected to the outer circumference of the guide post 17. The guide cylinder 16 is fixedly connected to the threaded sleeve 18. A mounting plate 19 is fixedly connected to the bottom outer wall of the guide cylinder 16. A dust removal device for the PM2.5 sensor 13 and the formaldehyde sensor 22 is provided on one side of the mounting plate 19. During the startup of the motor 24, the threaded screw 15 inside the housing 1 also rotates. The rotation of the threaded screw 15 enables the threaded sleeve 18, which is threaded to its outer wall, to drive the mounting plate 19 and the cleaning pad 20 to move horizontally. This allows for the cleaning of the PM2.5 sensor 13 and the formaldehyde sensor 22 during ventilation, preventing dust from adhering to the surfaces of the PM2.5 sensor 13 and the formaldehyde sensor 22 and affecting their monitoring results. This further improves the accuracy of the monitoring data of the entire monitoring device.

[0030] Furthermore, a sleeve 3 is fixedly connected to one side of the outer wall of the housing 1, and an air intake tube 4 is inserted inside the sleeve 3. A guide tube 12 is fixedly connected to one end of the sleeve 3. The guide tube 12 is located on one side of the PM2.5 sensor 13 to ensure that the gas entering from the guide tube 12 can fully contact the PM2.5 sensor 13.

[0031] Furthermore, an arc-shaped plate 21 is fixedly connected to one side of the outer wall of the partition 27, and a dust discharge groove 9 is provided on one side of the housing 1. The dust discharge groove 9 is located at the end of the arc-shaped plate 21, and a sealing plate 8 is snapped into the inside of the dust discharge groove 9 to facilitate the discharge of dust that settles inside the housing 1 from the inside of the dust discharge groove 9.

[0032] Working principle: During use, the operator first opens the cover 7 and turns on the machine. At this time, outside air enters the housing 1 through the second ventilation slot 10 and flows out through the first ventilation slot 6 (or flows in through the first ventilation slot 6 and out through the second ventilation slot 10). During this process, the outside air comes into contact with the PM2.5 sensor 13 and formaldehyde sensor 22 inside the housing 1. The PM2.5 sensor 13 and formaldehyde sensor 22 enable effective monitoring of air quality. The monitored values ​​are displayed on the screen 2, allowing people to easily monitor the indoor air quality. When environmental monitoring is needed in a small indoor space, the cover 7 can be closed and the suction pipe 4 can be pulled out of the sleeve 3. Then, the suction pipe 4 is placed into the small space and the motor 24 is started. The motor 24 drives the fan blades 25 to rotate, thereby drawing air from the confined space into the housing 1, allowing it to come into contact with the PM2.5 sensor 13 and the formaldehyde sensor 22. This expands the overall usability of the device. During the start-up of the motor 24, the threaded screw 15 inside the housing 1 also rotates. This rotation causes the threaded sleeve 18, threaded to its outer wall, to move the mounting plate 19 and the cleaning pad 20 horizontally. This allows for cleaning of the PM2.5 sensor 13 and the formaldehyde sensor 22 during ventilation, preventing dust from adhering to their surfaces and affecting the monitoring results. This further improves the accuracy of the monitoring data from the entire device.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. An indoor environment monitoring device comprising a housing (1), characterized in that, The side outer wall of the shell (1) is provided with a display screen (2), the side outer wall of the shell (1) is fixedly connected with a handle (5), the side inner wall of the shell (1) is fixedly connected with a circuit board (26), the side of the circuit board (26) is respectively provided with a PM2.5 sensor (13) and a formaldehyde sensor (22), the inside of the shell (1) is fixedly connected with a partition plate (27), the end of the PM2.5 sensor (13) and the formaldehyde sensor (22) away from the circuit board (26) passes through the side of the partition plate (27), the side of the shell (1) away from the first ventilation slot (6) is provided with a second ventilation slot (10). The inside of the shell (1) is provided with a ventilation assembly; The inside of the shell (1) is provided with a cleaning assembly for dust removal of the PM2.5 sensor (13) and the formaldehyde sensor (22).

2. The indoor environment monitoring device of claim 1, wherein, The side of the shell (1) is provided with a sealing groove (11), the sealing groove (11) is communicated with the second ventilation slot (10), the two side inner walls of the sealing groove (11) are rotatably connected with a cover plate (7) through a damping rotating shaft.

3. The indoor environment monitoring device of claim 2, wherein, The ventilation assembly comprises a motor (24) fixedly connected to the side inner wall of the shell (1), the output end of the motor (24) is fixedly connected with a shaft sleeve (23), the circumferential outer wall of the shaft sleeve (23) is fixedly connected with fan leaves (25) distributed in a circle at equal distances.

4. The indoor environment monitoring device of claim 3, wherein, The cleaning assembly comprises a threaded lead screw (15) fixedly connected to the output end of the motor (24), and a threaded sleeve (18) threadedly connected to the circumferential outer wall of the threaded lead screw (15).

5. The indoor environment monitoring device of claim 4, wherein, The top inner wall of the shell (1) is fixedly connected with a vertical plate (14), the side outer wall of the vertical plate (14) is fixedly connected with a guide column (17), the circumferential outer wall of the guide column (17) is slidably connected with a guide cylinder (16), the guide cylinder (16) is fixedly connected with the threaded sleeve (18), the bottom outer wall of the guide cylinder (16) is fixedly connected with a mounting plate (19), and the side of the mounting plate (19) is provided with a cleaning pad (20) for dust removal of the PM2.5 sensor (13) and the formaldehyde sensor (22).

6. The indoor environment monitoring device of claim 5, wherein, The side outer wall of the shell (1) is fixedly connected with a sleeve pipe (3), the inside of the sleeve pipe (3) is inserted with an air suction pipe (4), one end of the sleeve pipe (3) is fixedly connected with a flow guide pipe (12), and the flow guide pipe (12) is located on the side of the PM2.5 sensor (13).

7. The indoor environment monitoring device of claim 6, wherein, The side outer wall of the partition plate (27) is fixedly connected with an arc-shaped plate (21), the side of the shell (1) is provided with an ash discharge groove (9), the ash discharge groove (9) is located at the end of the arc-shaped plate (21), and the inside of the ash discharge groove (9) is clamped with a sealing plate (8).

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