Air filtering device for evaluating air pollution degree

Abstract

The utility model discloses an air filtering device for air pollution degree evaluation, which comprises a filter shell, the front part of the filter shell is fixedly connected with a gas collecting hood, the front part of the gas collecting hood is fixedly connected with a fan, the upper part of the filter shell is provided with a handle, the lower part of the handle is fixedly connected with a cover plate, and the cover plate is fixedly connected with a fan. And the lower part of the cover plate is fixedly connected with a filter shell. According to the utility model, the filter shell is inserted into the filter shell, and the cover plate and the filter shell are connected through the bolts, so that the quick disassembly and assembly of the equipment are realized. Through the design, a user can easily open the device to clean or replace the first filter frame and the second filter frame.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air filter device technical field especially relates to an air filter device for air pollution degree evaluation. BACKGROUND

[0002] With the continuous advancement of industrialization and urbanization, air quality problems have increasingly attracted public attention. Air pollution not only affects people's quality of life, but also poses a serious threat to human health. In order to effectively assess the degree of air pollution and take appropriate measures, air pollution degree evaluation technology has developed rapidly. Traditional air pollution degree evaluation mainly relies on laboratory analysis methods, which are accurate but have the disadvantages of complex operation, high cost and long time-consuming. In recent years, with the progress of sensor technology and data processing capability, portable air pollution degree evaluation equipment has gradually become popular, making it possible to monitor air quality in real time. However, the existing portable evaluation devices still have deficiencies in filtration efficiency, convenience and compatibility with subsequent pollution degree analysis instruments, limiting their widespread application.

[0003] In the prior art, air pollution degree evaluation equipment usually lacks an efficient air filtration system, resulting in low purity of collected samples and affecting the accuracy of the final evaluation results. In addition, due to the limitations of structural design, existing devices are often difficult to disassemble and clean quickly, which is not conducive to long-term stable operation. Especially in some specific environmental conditions, such as high humidity or high dust environment, the filter is easily clogged, reducing the working efficiency of the equipment. Moreover, most of the portable evaluation equipment on the current market does not fully consider the connection convenience and compatibility between different types of pollution degree evaluation devices, which to some extent restricts their actual application range. Therefore, we propose an air pollution degree evaluation air filter device. SUMMARY

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an air pollution degree evaluation air filter device, which realizes quick disassembly and cleaning through a convenient disassembly structure, facilitating long-term stable operation.

[0005] The utility model is realized in this way, an air pollution degree evaluation air filter device, including filter shell, the front of filter shell is fixedly connected with the gas collecting cover, the front of gas collecting cover is fixedly connected with fan, the upper portion of filter shell is equipped with handle, the lower portion of handle is fixedly connected with cover plate, the lower portion of cover plate is fixedly connected with filter shell body, the inside of filter shell body is installed with first filter frame and second filter frame, filter shell body is inserted in the inside of filter shell, the rear of filter shell is equipped with the opening for connecting pollution degree evaluation device.

[0006] Optionally, the pollution assessment device comprises a machine body, the upper part of the machine body is connected with an air inlet elbow, and the air inlet elbow is fixedly connected with a first flange.

[0007] Optionally, the rear part of the filter shell is fixedly connected with a fixing pipe, and the fixing pipe is connected with a second flange.

[0008] Optionally, the filter shell is an iron shell, and the first filter frame and the second filter frame are respectively connected with magnet blocks.

[0009] Optionally, the first filter frame is provided with an activated carbon filter screen, the second filter frame is provided with a nylon filter screen, and a cushion block is arranged between the first filter frame and the second filter frame.

[0010] Optionally, screw holes are formed in the filter shell, the cover plate is connected with the filter shell through bolts, and a switch is arranged on the filter shell.

[0011] Compared with the prior art, the pollution assessment device has the following beneficial effects:

[0012] 1. The filter shell is inserted into the filter shell, and the cover plate is connected with the filter shell through bolts, so that the device can be quickly disassembled and assembled. This design allows users to easily open the device and clean or replace the first filter frame and the second filter frame. This convenience not only greatly improves the maintenance efficiency, but also ensures the long-term stable operation of the filter device, avoiding the problem of reduced filtering efficiency caused by long-term use.

[0013] 2. The combination of the gas collecting hood and the fan aims to improve the air collection efficiency and flow rate. Specifically, the large-diameter design of the gas collecting hood helps to capture a larger range of air samples, and the fan ensures that these samples can quickly and effectively enter the filtering system. Through this design, the accuracy of air quality monitoring data is improved, because a wider range of air samples means that the assessment results are more comprehensive and reliable.

[0014] 3. A double-layer filtering system is adopted, including an activated carbon filter screen on the first filter frame and a nylon filter screen on the second filter frame. Through this configuration, organic pollutants and odors in the air are first removed by the activated carbon filter screen, and then fine particulate matter is further captured by the nylon filter screen. This hierarchical filtering strategy not only effectively purifies the air sample, but also protects the subsequent pollution assessment device from damage by large particles. In addition, the design of the magnet blocks allows the first filter frame and the second filter frame to be conveniently fixed in the iron shell, increasing the flexibility and stability of the installation.

[0015] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a first perspective view of the structure provided by the present application;

[0017] Figure 2 is a second perspective view provided by the present application;

[0018] Figure 3 is a schematic diagram of the front part of the explosion structure provided by the present application;

[0019] Figure 4 is a schematic diagram of the rear part of the explosion structure provided by the present application;

[0020] Figure 5 is a schematic diagram of the filter housing provided by the present application.

[0021] In the figure: 1, filter housing; 2, fan; 3, handle; 4, air inlet elbow; 5, machine body; 6, first flange; 7, air collecting cover; 8, threaded hole; 9, filter housing; 10, cover plate; 11, switch; 12, fixed tube; 13, second flange; 14, opening; 15, second filter frame; 16, first filter frame; 17, cushion block; 18, magnet block; 19, activated carbon filter screen; 20, nylon filter screen. DETAILED DESCRIPTION

[0022] In order to further understand the utility model content, characteristics and efficacy of the present application, the following examples are given, and the drawings are described in detail as follows.

[0023] As Figures 1 to 5 shown, the air pollution evaluation air filter device provided by the embodiment of the present application.

[0024] The filter housing 1 is provided, the front part of the filter housing 1 is fixedly connected with the air collecting cover 7, the front part of the air collecting cover 7 is fixedly connected with the fan 2, the front side of the fan 2 is fixedly connected with the front metal filter screen, which is not drawn in the figure, the upper part of the filter housing 1 is provided with the handle 3, the lower part of the handle 3 is fixedly connected with the cover plate 10, the lower part of the cover plate 10 is fixedly connected with the filter housing 9, the inside of the filter housing 9 is installed with the first filter frame 16 and the second filter frame 15, the filter housing 9 is inserted in the inside of the filter housing 1, and the rear part of the filter housing 1 is provided with the opening 14 for connecting the pollution evaluation device.

[0025] The pollution evaluation device comprises a machine body 5, the upper part of the machine body 5 is connected with the air inlet elbow 4, and the first flange 6 is fixedly connected on the air inlet elbow 4.

[0026] The rear of the filter housing 1 is fixedly connected with a fixed tube 12, and the second flange 13 is connected to the fixed tube 12.

[0027] The filter housing 9 is an iron housing, and the first filter frame 16 and the second filter frame 15 are respectively connected with the magnet block 18.

[0028] The first filter frame 16 is provided with an activated carbon filter screen 19, and the second filter frame 15 is provided with a nylon filter screen 20. The first filter frame 16 and the second filter frame 15 are provided with a gasket 17.

[0029] The filter housing 1 is provided with a threaded hole 8, and the cover plate 10 is connected to the filter housing 1 through bolts. The filter housing 1 is provided with a switch 11.

[0030] Working principle: first, when the equipment starts, the fan 2 starts to work, and the air in the environment is sucked from the front through the air collecting cover 7.

[0031] Subsequently, the air is guided to the second filter frame 15, which is provided with a nylon filter screen 20. The nylon filter screen 20 is mainly used to capture finer particulate matters such as dust, smoke, etc., and further improves the air purification effect. The first filter frame 16 is provided with an activated carbon filter screen 19. The activated carbon filter screen 19 can filter out organic pollutants, harmful gases and odor substances in the air. Because the activated carbon has a highly developed pore structure, it can effectively adsorb these pollutants, thereby purifying the air.

[0032] The first filter frame 16 and the second filter frame 15 are provided with a gasket 17 to ensure the appropriate spacing between the two layers of filter screens, so as to avoid the efficiency decline or damage caused by contact.

[0033] The filtered clean air finally enters the air inlet elbow 4 through the opening 14 formed in the rear of the filter housing 1, and is connected to the pollution degree evaluation device through the second flange 13 on the fixed tube 12. The pollution degree evaluation device includes a machine body 5, the upper part of which is connected with the air inlet elbow 4, and is tightly connected with the air filter device through the first flange 6. In this way, the air after the filtering treatment can directly enter the pollution degree evaluation device for detailed component analysis.

[0034] In order to facilitate maintenance, the entire filtering system is designed in a form that can be easily disassembled. The filter housing 9 is an iron housing, and the first filter frame 16 and the second filter frame 15 in the interior thereof are respectively fixed through the magnet block 18, so that the user can easily open the cover plate 10 through simple operation, and easily clean or replace the filter screen of the filter frame. In addition, the filter housing 1 is provided with a threaded hole 8, which allows the cover plate 10 to be firmly connected to the filter housing 1 through bolts. Meanwhile, the filter housing 1 is also provided with a switch 11, which facilitates the control of the working state of the fan 2.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An air filtering device for air pollution measurement, comprising a filter housing (1), characterized in that: The front of the filter shell (1) is fixedly connected with a gas collecting cover (7), the front of the gas collecting cover (7) is fixedly connected with a fan (2), the upper portion of the filter shell (1) is provided with a handle (3), the lower portion of the handle (3) is fixedly connected with a cover plate (10), the lower portion of the cover plate (10) is fixedly connected with a filter housing (9), the inside of the filter housing (9) is mounted with a first filter frame (16) and a second filter frame (15), the filter housing (9) is inserted into the inside of the filter shell (1), and the rear of the filter shell (1) is provided with an opening (14) for connecting a pollution degree evaluation device.

2. The air filter device for evaluating air pollution according to claim 1, wherein: The pollution degree evaluation device comprises a machine body (5), the upper portion of the machine body (5) is connected with an air inlet elbow (4), and the air inlet elbow (4) is fixedly connected with a first flange (6).

3. The air filter device for evaluating air pollution according to claim 1, wherein: The rear of the filter shell (1) is fixedly connected with a fixing pipe (12), and the fixing pipe (12) is connected with a second flange (13).

4. The air filter device for evaluating air pollution according to claim 1, wherein: The filter housing (9) is an iron housing, and the first filter frame (16) and the second filter frame (15) are respectively connected with a magnet block (18).

5. The air filter device for evaluating air pollution according to claim 1, wherein: The first filter frame (16) is mounted with an activated carbon filter screen (19), the second filter frame (15) is mounted with a nylon filter screen (20), and the first filter frame (16) and the second filter frame (15) are provided with a cushion block (17).

6. The air filter device for evaluating air pollution according to claim 1, wherein: Screw holes (8) are formed in the filter shell (1), the cover plate (10) is connected with the filter shell (1) through bolts, and the filter shell (1) is provided with a switch (11).

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