Air filter with self-checking function

Abstract

The utility model relates to the technical field of air filters, and discloses an air filter with a self-checking function, which comprises an equipment main body, a suction pump is fixedly arranged below the middle of the front of the equipment main body, a connecting pipe is fixedly arranged at the left end of the suction pump, an air inlet is fixedly arranged at the left end of the connecting pipe, and an air outlet is fixedly arranged at the right end of the connecting pipe. Filter screens are arranged at the left end of the air inlet and holes in the periphery of the air inlet. According to the air filter with the self-checking function, air is sucked by starting the suction pump, large-particle dust is prevented from being directly sucked into the equipment main body through the filter screen, large-particle impurities in air can be preliminarily filtered through the filter screen, and the air is fed into the filter through the suction pump and then filtered again through the first filter screen in the filter plate; the filter plate is blocked after being used for a long time, the filter plate can be pulled out of the sliding groove by buckling the handle groove and cleaned, or the filter plate is replaced with a new filter plate for use, and cleaning is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air filter with a self-checking function. Background Art

[0002] An air filter is an air filtration device, typically used in cleanrooms to prevent dust. It uses porous filter material to capture dust from gas-solid two-phase flows and purify the air. It purifies low-dust air before delivering it indoors, ensuring both the process requirements of cleanrooms and the cleanliness of air in general air-conditioned rooms.

[0003] The prior art authorization announcement number CN210522057U patent document proposes an air filter with a self-inspection function. The patent proposes an air filter including a first physical air filter, a second physical air filter, a first chemical air filter and a second chemical air filter. The first physical air filter is fixedly connected to the second physical air filter, the first chemical air filter is fixedly connected to the second chemical air filter, the first physical air filter is detachably connected to the first chemical air filter, and the second physical air filter is detachably connected to the second chemical air filter. Combined with an air particle counter and a formaldehyde detection instrument, the self-inspection effect is achieved.

[0004] Existing air filters with self-checking functions are not convenient for cleaning clogged filters during use. It is inconvenient to clean the filters during use. Moreover, after long-term use, the filters become clogged and inconvenient to clean, which reduces the filtering effect of the equipment and reduces the practicality of the equipment. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to provide an air filter with a self-checking function to solve the problem in the above background technology that after long-term use, the filter screen becomes clogged and inconvenient to clean, resulting in reduced filtering effect of the equipment and low practicality of the equipment.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an air filter with a self-checking function, comprising a device body, a suction pump fixedly provided at the lower middle portion of the front of the device body, a connecting pipe fixedly provided at the left end of the suction pump, an air inlet fixedly provided at the left end of the connecting pipe, and a filter screen provided at the left end of the air inlet and at the holes around the air inlet;

[0009] A sliding groove is fixedly provided in the middle of the front of the device body, and a filter plate is slidably connected to the inner side of the sliding groove. The filter plate is located inside the device body, and a handle groove is fixedly provided in the middle of the left end of the filter plate.

[0010] Preferably, a first filter is fixedly provided on the inner side of the filter plate, a filter is fixedly provided on the bottom of the inner side of the device body, and an air intake is fixedly provided above the filter plate.

[0011] Preferably, an inlet pipe is fixedly provided at the upper end of the air inlet, and an air filter body is fixedly provided at the upper end of the inlet pipe.

[0012] Preferably, a second filter is fixedly provided at the upper end of the air filter body, air pressure sensors are fixedly provided on the left and right sides of the air filter body, the input pipe is located at the lower end of the middle part of the air filter body, and the air inlet is located at the lower end of the input pipe.

[0013] Preferably, an exhaust port is fixedly provided in the middle of the upper end of the equipment body, and an inspection door is movably provided above the right end of the equipment body.

[0014] Preferably, a door handle is fixedly provided at the middle portion of the right side of the outer end of the inspection door, and a control panel is fixedly provided at the upper portion of the left side in front of the equipment body.

[0015] Preferably, a load-bearing base plate is fixedly provided at the lower end of the equipment body, and universal wheels are evenly distributed at the four corners of the lower end of the load-bearing base plate. The mesh sizes of the filter screen, the first filter screen and the second filter screen decrease in sequence.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The air filter with self-checking function starts the suction pump to inhale the air, and prevents large dust particles from being directly inhaled into the main body of the device through the filter. The filter can initially filter large particles of impurities in the air. After the suction pump sends the air into the filter, it is filtered again through the first filter in the filter plate. After long-term use, the filter plate is blocked. By buckling the handle slot, the filter plate can be pulled out from the sliding slot and cleaned, or replaced with a new filter plate for use, which is more convenient to clean;

[0018] 2. The air filter with self-checking function can sense the air pressure inside the air filter body through the use of air pressure sensors on both sides of the air filter body. When it is blocked, as the air is drawn in, the amount of air entering is greater than the amount of air discharged, causing the internal air pressure to increase. Therefore, when the air pressure sensor detects a large pressure fluctuation, it means that the internal filter is blocked. The two air pressure sensors can more accurately detect the air pressure changes in the device, thereby more accurately judging whether it is blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional detailed structure of the filter plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the partially enlarged detailed structure of the air filter body of the utility model.

[0023] In the figure: 1. Equipment body; 2. Suction pump; 3. Connecting pipe; 4. Air inlet; 5. Filter; 6. Sliding groove; 7. Filter plate; 8. Handle groove; 9. First filter; 10. Filter; 11. Inlet; 12. Input pipe; 13. Air filter body; 14. Second filter; 15. Air pressure sensor; 16. Exhaust port; 17. Inspection door; 18. Door handle; 19. Control panel; 20. Load-bearing base plate; 21. Universal wheel. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: an air filter with a self-checking function, comprising a device body 1, a suction pump 2 is fixedly provided at the lower front middle portion of the device body 1, a connecting pipe 3 is fixedly provided at the left end of the suction pump 2, an air inlet 4 is fixedly provided at the left end of the connecting pipe 3, and a filter screen 5 is provided at the left end of the air inlet 4 and the holes around it;

[0026] A sliding groove 6 is fixedly provided in the middle of the front of the device body 1, and a filter plate 7 is slidably connected to the inner side of the sliding groove 6. The filter plate 7 is located inside the device body 1, and a handle groove 8 is fixedly provided in the middle of the left end of the filter plate 7.

[0027] A first filter screen 9 is fixedly provided on the inner side of the filter plate 7, a filter 10 is fixedly provided on the bottom inside the equipment main body 1, an air intake port 11 is fixedly provided above the filter plate 7, an input pipe 12 is fixedly provided on the upper end of the air intake port 11, an air filter body 13 is fixedly provided on the upper end of the input pipe 12, a second filter screen 14 is fixedly provided on the upper end of the air filter body 13, an air pressure sensor 15 is fixedly provided on the left and right sides of the air filter body 13, the input pipe 12 is located at the lower end of the middle part of the air filter body 13, the air intake port 11 is located at the lower end of the input pipe 12, an exhaust port 16 is fixedly provided in the middle of the upper end of the equipment main body 1, an inspection door 17 is movably provided above the right end of the equipment main body 1, a door handle 18 is fixedly provided in the middle of the right side of the outer end of the inspection door 17, and a control panel 19 is fixedly provided on the upper left side of the front of the equipment main body 1.

[0028] A load-bearing base plate 20 is fixedly provided at the lower end of the equipment body 1, and universal wheels 21 are evenly distributed at the four corners of the lower end of the load-bearing base plate 20. The mesh sizes of the filter screen 5, the first filter screen 9 and the second filter screen 14 decrease in sequence.

[0029] Working principle: When it is necessary to use the air filter with self-checking function, the air is sucked in through the suction pump 2 at the lower middle part of the front end of the device body 1, and the air is taken in through the air inlet 4 at the left end of the connecting pipe 3. There are filter screens 5 at the front end and the outer holes of the air inlet 4. After passing through the filter screen 5, the larger particles of impurities in the air can be preliminarily filtered, and the air is sent into the filter 10 through the suction pump 2, and then filtered twice through the first filter screen 9 in the filter plate 7. After long-term use, when there are more impurities adsorbed in the filter plate 7, the filter plate 7 can be pulled out of the sliding groove 6 by buckling the handle groove 8 and cleaned. The air after passing through the first filter screen 9 is absorbed through the suction port 11 and input into the air filter body 13 through the input pipe 12. The air is filtered again by the air filter body 13 and passed through the air filter body 13 The second filter 14 at the end filters and adsorbs again, and then the filtered air is discharged through the exhaust port 16. The air pressure sensors 15 on the left and right sides of the air filter body 13 can sense the air pressure in the air filter 13. When it is not blocked, the air flow inside it is smooth and the internal air pressure fluctuation is small. When it is blocked, as the air is drawn in, the amount of air entering is greater than the amount of air discharged, causing the internal air pressure to increase. Therefore, when the air pressure sensor 15 detects a large pressure fluctuation, it means that the internal filter is blocked, and the two air pressure sensors 15 can more accurately detect the air pressure in the device, so as to more accurately judge whether it is blocked. By pulling the door handle 18, the inspection door 17 is opened to facilitate inspection, maintenance and cleaning of the interior of the equipment body 1, and the equipment can be moved by the universal wheel 21 at the lower end of the load-bearing base plate 20.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An air filter with a self-checking function, comprising a device body (1), characterized in that: A suction pump (2) is fixedly provided at the lower middle portion of the front of the equipment body (1); a connecting pipe (3) is fixedly provided at the left end of the suction pump (2); an air inlet (4) is fixedly provided at the left end of the connecting pipe (3); and a filter screen (5) is provided at the left end of the air inlet (4) and the holes around it. A sliding groove (6) is fixedly provided in the middle of the front of the device body (1), a filter plate (7) is slidably connected to the inner side of the sliding groove (6), the filter plate (7) is located inside the device body (1), and a handle groove (8) is fixedly provided in the middle of the left end of the filter plate (7).

2. The air filter with self-checking function according to claim 1, characterized in that: A first filter screen (9) is fixedly provided on the inner side of the filter plate (7), a filter (10) is fixedly provided on the bottom of the inner side of the device body (1), and an air intake (11) is fixedly provided above the filter plate (7).

3. The air filter with self-checking function according to claim 2, characterized in that: An inlet pipe (12) is fixedly provided at the upper end of the air inlet (11), and an air filter body (13) is fixedly provided at the upper end of the inlet pipe (12).

4. The air filter with self-checking function according to claim 3, characterized in that: A second filter screen (14) is fixedly provided at the upper end of the air filter body (13), and air pressure sensors (15) are fixedly provided on the left and right sides of the air filter body (13). The inlet pipe (12) is located at the lower end of the middle part of the air filter body (13), and the air inlet (11) is located at the lower end of the inlet pipe (12).

5. The air filter with self-checking function according to claim 1, characterized in that: An exhaust port (16) is fixedly provided in the middle of the upper end of the equipment body (1), and an inspection door (17) is movably provided above the right end of the equipment body (1).

6. The air filter with self-checking function according to claim 5, characterized in that: A door handle (18) is fixedly provided in the middle of the right side of the outer end of the inspection door (17), and a control panel (19) is fixedly provided on the upper left side of the front of the equipment body (1).

7. The air filter with self-checking function according to claim 6, characterized in that: A load-bearing base plate (20) is fixedly provided at the lower end of the equipment body (1), and universal wheels (21) are evenly distributed at the four corners of the lower end of the load-bearing base plate (20). The mesh sizes of the filter screen (5), the first filter screen (9), and the second filter screen (14) decrease in sequence.

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