Indoor air pollutant accurate detection device

Abstract

The utility model discloses an indoor air pollutant accurate detection device which comprises a box body and a U-shaped handle fixedly connected to the top of the box body, an air pump is fixedly installed on the inner wall of the top of the box body, and an air inlet filtering assembly fixedly communicated with an air inlet of the air pump is embedded in the inner wall of the left side of the box body. A medium gas mixing detection assembly is fixedly embedded in the right side of the box body, and the top of the right side of the box body is arranged to be of an inwards-concave structure and is fixedly provided with a displayer electrically connected with the medium gas mixing detection assembly. According to the utility model, a series of structures are arranged, so that extracted gas can be conveniently mixed into a medium after solid impurities are filtered, pollutants can be accurately detected, and the filter screen and the breathable filter cloth can be conveniently, integrally and automatically subjected to back flushing, cleaning and dredging, shielding, protection and pollution prevention after being used; the risk that the filter screen and the breathable filter cloth are stained in the carrying process is reduced, people do not need to disassemble, assemble and clean the filter screen and the breathable filter cloth, and the use convenience and the safety of the filter piece are improved.

Description

Technical Field

[0001] This utility model relates to the field of air pollutant detection technology, specifically to an indoor air pollutant precision detection device. Background Technology

[0002] Indoor air pollutants refer to substances harmful to the human body contained in indoor decoration materials, furniture, etc. These pollutants are released into the home and office environment, causing decoration pollution. In daily life, newly renovated houses often affect people's health due to the release of harmful substances from building boards and building materials. Therefore, it is necessary to test the pollutants and ensure that they meet the standards before moving in. Traditional detection devices cannot remove impurities from the air before mixing them with the medium when collecting gas samples, which will have a certain impact on subsequent detection.

[0003] According to a search report from a novelty search agency, announcement number CN214750123U discloses a precise indoor air pollutant detection device, including a shell. A partition is fixedly installed in the middle of the shell's interior. An air intake device is installed through the partition and the shell. A first bearing is installed through the corner of the shell's upper surface, and a lifting device for the detector is rotatably connected to the first bearing. A second bearing is installed through the lower side of the partition inside the shell, and a second rotating shaft is rotatably connected to the second bearing. A mixing device is rotatably connected to the second bearing. The device removes impurities from the air by using a filter membrane, preventing impurities from affecting the detection results. Furthermore, the mixing device ensures uniform mixing of air and the medium, making the detection results more accurate.

[0004] The aforementioned technology discloses an indoor air pollutant precision detection device that uses a filter membrane to filter and intercept solid impurities when drawing in gas. The filtered gas is then mixed with a detection medium such as distilled water, and the mixture is used for detection. This method of filtering impurities before detection offers high accuracy. However, it has the following drawbacks: 1. It cannot automatically clean and protect the filter membrane after use. When not in use, the left-side opening poses a significant risk of filter membrane contamination, and the need for separate disassembly and cleaning by personnel is inconvenient. Therefore, this application proposes an indoor air pollutant precision detection device to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a device for accurate detection of indoor air pollutants, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an indoor air pollutant precision detection device, comprising a housing and a U-shaped handle fixedly connected to its top, an air pump fixedly installed on the inner wall of the top of the housing, an air intake filter assembly embedded in the inner wall of the left side of the housing and fixedly connected to the air inlet of the air pump, a medium gas mixture detection assembly embedded in the right side of the housing, and a display electrically connected to the medium gas mixture detection assembly fixedly installed on the top right side of the housing, the air intake filter assembly is used to draw in and filter external air when the air pump is turned on, and the medium gas mixture detection assembly is used to detect the gas mixture with the medium in the gas drawn and delivered by the air pump, and to display the detection data on the display.

[0007] The left side of the housing is in contact with a baffle plate that cooperates with the air intake filter assembly. A lifting and blowing assembly is fixedly installed between the left inner wall of the housing and the right side of the baffle plate. The top of the lifting and blowing assembly extends into the air intake filter assembly. The lifting and blowing assembly is used to drive the baffle plate to rise after use to shield and protect the air intake filter assembly from contamination, and to automatically backflush and clean the air intake filter assembly.

[0008] Preferably, the air intake filter assembly includes an air intake box embedded and fixed on the inner wall of the left side of the housing. The left side of the air intake box is flush with the left side of the housing and is set as an opening. A filter screen is fixedly sleeved inside the air intake box. A breathable filter cloth is fixedly connected to the left side of the filter screen. The right side of the air intake box is connected and fixedly connected to the air inlet of the air pump.

[0009] Preferably, the medium gas mixing detection component includes a transparent box embedded and fixed on the inner wall of the right side of the housing. The transparent box is filled with distilled water. An L-shaped tube with a sealed bottom is installed inside the transparent box. The left end of the L-shaped tube is connected and fixed to the air outlet of the air pump. Multiple air outlet pipes are connected and fixed to the right side of the L-shaped tube. A detector electrically connected to the display is fixedly installed on the left side of the transparent box. The monitoring end of the detector extends into the transparent box. A drain valve is connected and fixed to the bottom right side of the transparent box. The detector can be a conventional device used to detect common indoor pollutants such as formaldehyde, such as a formaldehyde concentration detector, a formaldehyde, ammonia, radon, benzene, and TVOC analyzer.

[0010] Preferably, the lifting and blowing assembly includes an electric telescopic rod fixedly installed on the inner wall of the left side of the housing. An L-shaped lifting rod is fixedly connected between the extended end of the electric telescopic rod and the baffle plate. The top end of the L-shaped lifting rod slides into the air inlet box and is fixedly connected to a backflush box. Multiple backflush pipes are fixedly connected to the left side of the backflush box. The backflush pipes are located on the right side of the filter screen and cooperate with the filter screen. An air cylinder is fixedly installed at the bottom of the air inlet box. A hose is fixedly connected between the top of the air cylinder and the right side of the backflush box. A piston is sealed and slidably sleeved inside the air cylinder. A U-shaped rod is fixedly connected between the bottom of the piston and the bottom of the L-shaped lifting rod.

[0011] Preferably, a storage battery is fixedly installed on the bottom inner wall of the box, and an air pump switch, a first switch and a second switch are installed sequentially from front to back on the top right side of the box. The air pump switch, the first switch and the second switch are electrically connected to the air pump, the detector and the electric telescopic rod respectively. The air pump, the detector, the electric telescopic rod and the display are all electrically connected to the storage battery.

[0012] Preferably, an addition tube is fixedly connected to the top right side of the transparent box, and a tube cap is threaded onto the addition tube.

[0013] Preferably, a rectangular through hole is provided on the left inner wall of the box body, and the front and rear sides of the L-shaped lifting rod slide in contact with the front and rear inner walls of the rectangular through hole, respectively, and the position of the backflush pipe head is higher than the top position of the baffle plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By combining the set housing, air pump, air intake filter assembly, medium gas mixing detection assembly and display, it is possible to filter solid impurities from the extracted gas before mixing it into the medium for accurate detection of pollutants.

[0016] 2. Through the combination of the air intake filter assembly, the lifting and blowing assembly and the baffle plate, the filter screen and the breathable filter cloth can be automatically and quickly back-blown after use to clean and unclog them and protect them from contamination. This reduces the risk of the filter screen and the breathable filter cloth being contaminated during carrying due to the left-side opening. Moreover, no personnel are required to disassemble and clean the filter screen and the breathable filter cloth, thus improving the ease of use.

[0017] 3. With the U-shaped handle integrated into the box, the structure is compact and easy for people to carry and work with.

[0018] This utility model, through a series of structures, facilitates the accurate detection of pollutants by filtering solid impurities from the extracted gas before mixing it into the medium. It also facilitates the automatic backflushing, cleaning, unblocking, and shielding of the filter screen and breathable filter cloth after use to prevent contamination, reducing the risk of contamination of the filter screen and breathable filter cloth during transport. Furthermore, it eliminates the need for personnel to disassemble and clean the filter screen and breathable filter cloth, improving ease of use and the safety of the filter components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an indoor air pollutant precision detection device proposed in this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of an indoor air pollutant precision detection device proposed in this utility model;

[0021] Figure 3 for Figure 2A magnified structural diagram of part A in the diagram.

[0022] In the diagram: 1. Box body; 101. U-shaped handle; 2. Air pump; 3. Transparent box; 301. L-shaped tube; 302. Air outlet tube; 303. Detector; 304. Display; 4. Air inlet box; 401. Filter screen; 5. Baffle plate; 501. Electric telescopic rod; 502. L-shaped lifting rod; 503. Backflush box; 504. Backflush tube head; 505. Hose; 506. Air pump; 507. Piston; 508. U-shaped rod. 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] like Figures 1 to 3 As shown, this embodiment proposes an indoor air pollutant precision detection device, including a housing 1 and a U-shaped handle 101 fixedly connected to its top. An air pump 2 is fixedly installed on the top inner wall of the housing 1. An air intake filter assembly connected to the air inlet of the air pump 2 is embedded in the left inner wall of the housing 1. A medium gas mixture detection assembly is embedded in the right side of the housing 1. The top right side of the housing 1 is set as a concave structure and a display 304 electrically connected to the medium gas mixture detection assembly is fixedly installed. The air intake filter assembly is used to draw in and filter external air when the air pump 2 is turned on. The medium gas mixture detection assembly is used to detect the gas mixture with the medium in the gas drawn and delivered by the air pump 2, and displays the detection data through the display 304.

[0025] The left side of the housing 1 has a baffle plate 5 that works with the air intake filter assembly. A lifting and blowing assembly is fixedly installed between the left inner wall of the housing 1 and the right side of the baffle plate 5. The top of the lifting and blowing assembly extends into the air intake filter assembly. The lifting and blowing assembly is used to drive the baffle plate 5 to rise after use to cover and protect the air intake filter assembly from dirt and damage, and to automatically backflush and clean the air intake filter assembly.

[0026] Specifically, the air intake filter assembly includes an air intake box 4 embedded and fixed on the inner left side of the housing 1. The inner left side of the housing 1 has an insertion hole that is fixedly connected to the outer side of the air intake box 4. The left side of the air intake box 4 is flush with the left side of the housing 1 and is set as an opening. A filter screen 401 is fixedly fitted inside the air intake box 4. A breathable filter cloth is fixedly connected to the left side of the filter screen 401. The right side of the air intake box 4 is connected and fixedly connected to the air inlet of the air pump 2. The air intake box 4, the filter screen 401 and the breathable filter cloth work together to draw in external gas in sequence through the filter screen 401 and the breathable filter cloth when the air pump 2 is started. The filter screen 401 and the breathable filter cloth are used to filter, intercept and block solid impurities in the gas, preventing solid impurities from being drawn in and transported with the gas and affecting the detection work.

[0027] Furthermore, the medium-gas mixture detection assembly includes a transparent box 3 embedded and fixed on the inner right wall of the housing 1. The transparent box 3 is filled with distilled water. An L-shaped tube 301 with a sealed bottom is installed inside the transparent box 3. The left end of the L-shaped tube 301 is connected and fixed to the air outlet of the air pump 2. Multiple air outlet pipes 302 are connected and fixed to the right side of the L-shaped tube 301. A detector 303 electrically connected to a display 304 is fixedly installed on the left side of the transparent box 3. The monitoring end of the detector 303 extends into the transparent box 3. A drain valve is connected and fixed to the bottom right side of the transparent box 3. An add tube is connected and fixed to the top right side of the transparent box 3. A tube cap is threaded onto the add tube, and an external thread is provided on the outer side of the add tube. The inner side of the cap has an internal thread that meshes with the external thread, facilitating the screwing or unscrewing of the cap and the adding tube. The transparent box 3, L-shaped tube 301, air outlet tube 302, and detector 303 work together. When the air pump 2 starts, it draws gas and delivers it into the L-shaped tube 301. The gas is then directly blown out through multiple air outlet tubes 302 into distilled water for mixing and dissolution. The detector 303 measures the concentration of the solution to determine the concentration of pollutants in the air and transmits the measured values ​​to the display 304. The detector 303 can be a conventional device used for detecting common indoor pollutants such as formaldehyde, such as a formaldehyde concentration detector, a formaldehyde-ammonia-radon-benzene-TVOC analyzer, etc.

[0028] Furthermore, the lifting and blowing assembly includes an electric telescopic rod 501 fixedly installed on the inner wall of the left side of the housing 1. An L-shaped lifting rod 502 is fixedly connected between the extended end of the electric telescopic rod 501 and the baffle plate 5. A rectangular through hole is provided on the inner wall of the left side of the housing 1. The front and rear sides of the L-shaped lifting rod 502 slide in contact with the inner walls of the front and rear sides of the rectangular through hole, respectively. The rectangular through hole allows the L-shaped lifting rod 502 to pass through. The top end of the L-shaped lifting rod 502 slides into the air intake box 4 and is fixedly connected to a backflush box 503. Multiple backflush pipe heads 504 are fixedly connected to the left side of the backflush box 503. The position of the backflush pipe heads 504 is higher than the top position of the baffle plate 5. The backflush pipe heads 504 are located on the right side of the filter screen 401 and cooperate with the filter screen 401. An air cylinder 506 is fixedly installed at the bottom of the air intake box 4. A hose 505 is fixedly connected between the top of the air cylinder 506 and the right side of the backflush box 503. The inner sealing sliding sleeve is equipped with a piston 507, and a U-shaped rod 508 is fixedly connected between the bottom of the piston 507 and the bottom of the L-shaped lifting rod 502. The electric telescopic rod 501, L-shaped lifting rod 502, backflush box 503, backflush pipe head 504, air cylinder 506, hose 505, piston 507 and U-shaped rod 508 cooperate to drive the L-shaped lifting rod 502 to move up and down using the electric telescopic rod 501. When the L-shaped lifting rod 502 moves upward, it drives the guard. Plate 5, U-shaped rod 508 and backflush box 503 move upward. U-shaped rod 508 drives piston 507 to compress gas in air cylinder 506. Under the compression force, gas enters backflush box 503 through hose 505 and then blows out to the left through multiple backflush nozzles 504. By moving upward and blowing air to the left, the filter screen 401 and the breathable filter screen are thoroughly backflushed, cleaned and unblocked. In addition, the upward movement of baffle plate 5 can cover and protect the filter screen 401 and the breathable filter screen from dirt when not in use.

[0029] Furthermore, a storage battery is fixedly installed on the bottom inner wall of the housing 1. From front to back, an air pump switch, a first switch, and a second switch are installed sequentially on the top right side of the housing 1. The air pump switch, the first switch, and the second switch are electrically connected to the air pump 2, the detector 303, and the electric telescopic rod 501, respectively. The air pump 2, the detector 303, the electric telescopic rod 501, and the display 304 are all electrically connected to the storage battery, which serves to supply power to the air pump 2, the detector 303, the electric telescopic rod 501, and the display 304.

[0030] The usage method of this embodiment is as follows: During use, the operator operates the air pump switch and the first switch to turn on the air pump 2 and the detector 303 respectively. When the air pump 2 starts, it sequentially draws in external gas through the filter screen 401 and the breathable filter cloth. The filter screen 401 and the breathable filter cloth filter and intercept solid impurities in the gas to prevent solid impurities from being drawn in and transported with the gas, thus affecting the detection work. The drawn gas is transported by the air pump 2 into the L-shaped tube 301. The gas is directly blown out through multiple air outlets 302 into distilled water for mixing and dissolution. The detector 303 measures the concentration of the solution to determine the concentration of pollutants in the air and transmits the detection value to the display 304. This achieves the effect of accurately detecting pollutants by filtering the drawn gas before mixing it into the medium. The detector 303 can be a conventional device used to detect common indoor pollutants such as formaldehyde, such as a formaldehyde concentration detector, a formaldehyde, ammonia, radon, benzene, and TVOC analyzer. The technology of using the detector 303 to detect indoor air pollutants is existing technology and will not be described in detail here.

[0031] After use, the operator starts the electric telescopic rod 501 in the forward direction, which drives the L-shaped lifting rod 502 to move upward. When the L-shaped lifting rod 502 moves upward, it drives the baffle plate 5, U-shaped rod 508, and backflush box 503 to move upward. The U-shaped rod 508 drives the piston 507 to compress the gas in the air cylinder 506. Under the compression force, the gas enters the backflush box 503 through the hose 505, and then blows out to the left through multiple backflush nozzles 504. By moving upward and blowing air to the left, the filter screen 401 and the breathable filter screen are thoroughly backflushed, cleaned, and unblocked. In addition, the upward movement of the baffle plate 5 protects the filter screen 401 and the breathable filter screen from dirt and damage when not in use. This achieves the integrated automatic backflush cleaning and unblocking of the filter screen 401 and the breathable filter cloth, as well as the protection against dirt and damage after use. As a result, the risk of the filter screen 401 and the breathable filter cloth being contaminated during carrying due to the left-side opening is reduced, and no personnel are required to disassemble and clean the filter screen 401 and the breathable filter cloth, improving ease of use; when it is necessary to remove the obstruction later, the electric telescopic rod 501 is activated in the reverse direction. Similarly, the movement direction of the electric telescopic rod 501 is completely opposite to that of the forward activation mentioned above. The baffle plate 5, piston 507 and backflush box 503 all move downward to remove the obstruction. When the piston 507 moves downward, it sequentially draws external gas into the air cylinder 506 through the hose 505, backflush box 503 and backflush head 504 for reuse; the U-shaped handle 101, combined with the integration of all structures into the box body 1, has a small size and is convenient for personnel to carry and work with.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A precise indoor air pollutant detection device, comprising a housing (1) and a U-shaped handle (101) fixedly connected to its top, characterized in that: An air pump (2) is fixedly installed on the top inner wall of the box (1). An air intake filter assembly that is fixedly connected to the air inlet of the air pump (2) is embedded on the left inner wall of the box (1). A medium gas mixture detection assembly is embedded and fixed on the right side of the box (1). The top right side of the box (1) is set as a concave structure and a display (304) that is electrically connected to the medium gas mixture detection assembly is fixedly installed. The left side of the housing (1) is in contact with a baffle plate (5) that cooperates with the air intake filter assembly. A lifting and blowing assembly is fixedly installed between the left inner wall of the housing (1) and the right side of the baffle plate (5). The top of the lifting and blowing assembly extends into the air intake filter assembly.

2. The indoor air pollutant precision detection device according to claim 1, characterized in that: The air intake filter assembly includes an air intake box (4) embedded and fixed on the inner wall of the left side of the housing (1). The left side of the air intake box (4) is flush with the left side of the housing (1) and is set as an opening. A filter screen (401) is fixedly sleeved inside the air intake box (4). A breathable filter cloth is fixedly connected to the left side of the filter screen (401). The right side of the air intake box (4) is connected and fixed to the air inlet of the air pump (2).

3. The indoor air pollutant precision detection device according to claim 1, characterized in that: The medium gas mixing detection assembly includes a transparent box (3) embedded and fixed on the inner wall of the right side of the box (1). The transparent box (3) is filled with distilled water. An L-shaped tube (301) with a sealed bottom is provided inside the transparent box (3). The left end of the L-shaped tube (301) is connected and fixed to the outlet of the air pump (2). Multiple air outlet pipes (302) are connected and fixed to the right side of the L-shaped tube (301). A detector (303) electrically connected to the display (304) is fixedly installed on the left side of the transparent box (3). The monitoring end of the detector (303) extends into the transparent box (3). A drain valve is connected and fixed to the bottom right side of the transparent box (3).

4. The indoor air pollutant precision detection device according to claim 3, characterized in that: The lifting and blowing assembly includes an electric telescopic rod (501) fixedly installed on the inner left side of the housing (1). An L-shaped lifting rod (502) is fixedly connected between the extended end of the electric telescopic rod (501) and the baffle plate (5). The top end of the L-shaped lifting rod (502) slides into the air inlet box (4) and is fixedly connected to a backflush box (503). Multiple backflush pipe heads (504) are fixedly connected to the left side of the backflush box (503). 04) Located on the right side of the filter screen (401) and cooperating with the filter screen (401), the bottom of the air inlet box (4) is fixedly installed with an air cylinder (506). The top of the air cylinder (506) is connected to the right side of the backflush box (503) with a hose (505). The air cylinder (506) is sealed and slidably fitted with a piston (507). The bottom of the piston (507) is fixedly connected to the bottom of the L-shaped lifting rod (502) with a U-shaped rod (508).

5. The indoor air pollutant precision detection device according to claim 4, characterized in that: A storage battery is fixedly installed on the bottom inner wall of the box (1). An air pump switch, a first switch and a second switch are installed sequentially from front to back on the top right side of the box (1). The air pump switch, the first switch and the second switch are electrically connected to the air pump (2), the detector (303) and the electric telescopic rod (501) respectively. The air pump (2), the detector (303), the electric telescopic rod (501) and the display (304) are all electrically connected to the storage battery.

6. The indoor air pollutant precision detection device according to claim 3, characterized in that: The top right side of the transparent box (3) is connected to an addition tube, and a tube cap is threaded onto the addition tube.

7. The indoor air pollutant precision detection device according to claim 4, characterized in that: A rectangular through hole is provided on the left inner wall of the box (1). The front and rear sides of the L-shaped lifting rod (502) slide in contact with the front and rear inner walls of the rectangular through hole, respectively. The position of the backflush pipe head (504) is higher than the top position of the baffle plate (5).

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