Filter with moisture-proof function

Abstract

The present application relates to the technical field of filter, and particularly relates to a filter with moisture-proof function. The filter comprises a machine frame, an air inlet and an air outlet are formed in the machine frame, a connecting frame is installed on the machine frame, at least two first electric sliding rails are arranged in the connecting frame, a mesh frame is installed on the sliding block of the first electric sliding rail, and a montmorillonite desiccant is arranged in the mesh frame. The mesh frame with the montmorillonite desiccant is arranged in the machine frame, so that the air entering the filter can be dried, the humidity in the air is effectively reduced, the problems such as filter material pore blockage, filter efficiency reduction and strength weakening caused by moisture are prevented, and the filter has the moisture-proof function. Furthermore, the heating mechanism and the cooling and collecting mechanism are arranged, the montmorillonite desiccant can be periodically heated and dehydrated, the adsorbed water is evaporated and collected, the desiccant can be recycled, the desiccant does not need to be frequently replaced, the maintenance cost is reduced, and the sustainability of equipment operation is improved.

Description

Technical Field

[0001] This invention relates to the technical field of filters, and more particularly to a filter with moisture-proof function. Background Technology

[0002] Air filters are widely used in industrial, commercial, and residential fields to remove suspended particulate matter (such as dust, bacteria, pollen, etc.) from the air to improve air quality and protect equipment operation. However, in certain environments, such as the rainy season in the south, basements, coastal areas, and high-humidity places like food production workshops, traditional air filters face a series of unique technical challenges during use.

[0003] First, due to the high humidity in these environments, water vapor easily enters the filter media of air filters. For conventional fiber filter media (such as non-woven fabrics and glass fibers), they have a certain degree of hygroscopicity or capillary action. When the moisture content in the air exceeds a certain threshold, water molecules will adhere to the surface of the filter media or even penetrate its internal structure. This phenomenon not only causes the filter media pores to be covered by a water film, reducing the effective filtration area, but also causes changes in the physical properties of the filter media, such as a decrease in strength and a change in porosity, resulting in a decrease in filtration efficiency. Furthermore, filter media that are in a humid state for a long time may also breed mold, causing the filter media to become a secondary source of pollution, affecting air quality and user health. Second, when replacing the filter media of traditional air filters, after the filter media has adsorbed a large amount of dust and microorganisms, the pollutants on the filter media are very easy to fall off and disperse into the surrounding environment during the removal and transfer of the filter media, thus causing secondary pollution. Summary of the Invention

[0004] In view of this, the present invention provides a filter with a moisture-proof function, which can solve the problems of traditional air filters, where moisture can easily enter the filter media during use, resulting in a decrease in filter efficiency and mold growth. Moreover, when the filter media is replaced, contaminants on it are easily detached during removal and transfer, causing secondary pollution.

[0005] The technical solution is as follows: A filter with a moisture-proof function includes a frame with an air inlet and an air outlet. A connecting frame is installed on the frame, and at least two first electric slide rails are provided inside the connecting frame. A mesh frame is installed on the slider of the first electric slide rail, and montmorillonite desiccant is placed inside the mesh frame. The montmorillonite desiccant is used to dry the moisture in the air. A heating mechanism and a cooling collection mechanism are installed on the side of the frame. The heating mechanism is used to heat the montmorillonite desiccant to evaporate the moisture inside the montmorillonite desiccant. The cooling collection mechanism is used to collect the cooled water. A sliding frame is slidably arranged inside the frame, and filter media is placed inside the sliding frame. The filter media is used to filter the air entering the frame. Magnetic strips are symmetrically slidably arranged on the sliding frame, and iron strips are also symmetrically arranged on the sliding frame. The magnetic strips are used to attract the iron strips and the frame. A winding mechanism is provided on the sliding frame, and two shielding cloths are connected to the winding mechanism. The shielding cloths are connected to the magnetic strips and are used to shield the filter media inside the sliding frame.

[0006] Optionally, the heating mechanism includes a closed frame and a heater. The closed frame is installed on the side of the frame and is connected to the connecting frame. The heater is installed on the side of the closed frame.

[0007] Optionally, the collection mechanism includes a fixed frame, heat sinks, a support frame, and a collection frame. The fixed frame is provided on the top of the closed frame, the top of the fixed frame is inclined, heat sinks are installed at intervals on the top of the fixed frame, the support frame is installed on the side of the closed frame, and the collection frame is provided on the support frame. The collection frame is used to collect water droplets that slide down from the top of the fixed frame.

[0008] Optionally, the winding mechanism includes a fabric winding shaft and a torsion spring. The fabric winding shaft is symmetrically rotatably arranged inside the sliding frame. The two shielding fabrics are respectively connected to the two fabric winding shafts. A torsion spring is connected between the fabric winding shaft and the inner side of the sliding frame.

[0009] Optionally, it also includes a magnetic block, with a magnetic block provided at the bottom of the collection box, which is used to attach to the support frame to limit the position of the collection box.

[0010] Optionally, it also includes a cleaning mechanism, which includes a second electric slide rail, a connecting block, an electric push rod, an air outlet frame, and an air pipe. The second electric slide rail is provided inside the frame. The connecting block is connected to the slider of the second electric slide rail. The electric push rod is connected to the connecting block. The air outlet frame is connected to the telescopic rod of the electric push rod. The air outlet frame is used to spray gas to flush off the particles on the filter material. An air pipe is connected to the frame, and one end of the air pipe is connected to the air outlet frame.

[0011] Optionally, it also includes a collection mechanism, which includes a collection box and a magnetic plate. The collection box is located at the bottom of the frame and is used to collect particles that fall from the filter media. Magnetic plates are symmetrically arranged on the sides of the collection box and are used to adhere to the bottom of the frame to fix the collection box.

[0012] Optionally, it also includes an air delivery mechanism, which includes an air compressor pump, an air tank, and an electrically controlled valve. The air compressor pump and the air tank are installed on the side of the frame. The air outlet of the air compressor pump is connected to the air inlet of the air tank, and the air outlet of the air tank is connected to the other end of the air pipe. An electrically controlled valve is installed on the air pipe.

[0013] Compared with the prior art, the present invention has the following advantages: 1. By setting a mesh frame with montmorillonite desiccant inside the frame, the present invention can dry the air entering the filter, effectively reducing the humidity in the air, thereby preventing problems such as filter material pore blockage, decreased filtration efficiency, and weakened strength caused by moisture. This gives the filter a moisture-proof function. Moreover, by setting a heating mechanism and a cooling collection mechanism, the montmorillonite desiccant can be heated and dehydrated periodically, so that the adsorbed moisture evaporates and is condensed and collected, realizing the recycling of the desiccant without frequent replacement, reducing maintenance costs, and improving the sustainability of equipment operation.

[0014] 2. The present invention is equipped with a shielding cloth and magnetic strip linkage structure. When the sliding frame is pulled out, the shielding cloth automatically unfolds to shield the filter material, preventing dust, bacteria and other pollutants attached to the filter material from falling off and drifting away during replacement or transfer, effectively avoiding secondary pollution.

[0015] 3. By setting up a cleaning mechanism, an air conveying mechanism, and a collection mechanism, this invention can automatically flush the surface of the filter material with high-pressure gas after the filter stops, blowing the attached particles into the collection box below, which greatly improves the cleaning efficiency and reduces the amount of manual maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the first electric slide rail, the mesh frame, and the montmorillonite desiccant of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the heating mechanism of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the collecting mechanism of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the frame, sliding frame, and magnetic strip of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the filter material, magnetic strip, and iron strip of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the winding mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the magnetic strip, the roll of cloth, and the shielding cloth of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the sliding frame, the second electric slide rail, and the air outlet frame of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the cleaning mechanism of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the central mechanism of the present invention.

[0027] Figure 12 This is a three-dimensional structural diagram of the gas delivery mechanism of the present invention.

[0028] The components in the attached diagram are labeled as follows: 1: Frame, 2: Connecting frame, 3: First electric slide rail, 4: Mesh frame, 5: Montmorillonite desiccant, 601: Sealing frame, 602: Heater, 701: Fixing frame, 702: Heat sink, 703: Supporting frame, 704: Collection frame, 8: Sliding frame, 9: Filter media, 10: Magnetic strip, 11: Iron strip, 1201: Cloth roll shaft, 1202: Torsion spring, 13: Shielding cloth, 14: Magnetic block, 15: Second electric slide rail, 16: Connecting block, 17: Electric push rod, 18: Air outlet frame, 19: Air pipe, 20: Collection box, 21: Magnetic plate, 22: Air compressor pump, 23: Air tank, 24: Electrically controlled valve. Detailed Implementation

[0029] Example: A filter with moisture-proof function, see Figures 1-8As shown, the device includes a frame 1 with an air inlet on the left and an air outlet on the right. Outside air enters the frame 1 through the air inlet, passes through the inside of the frame 1, and exits through the air outlet. The frame 1 is made of iron. It also includes a connecting frame 2, first electric slide rails 3, a mesh frame 4, montmorillonite desiccant 5, a heating mechanism, a cooling and collection mechanism, a sliding frame 8, filter media 9, a magnetic strip 10, an iron strip 11, a winding mechanism, and a shielding cloth 13. The connecting frame 2 is installed on the bottom left side of the frame 1. Two first electric slide rails 3 are arranged inside the connecting frame 2. A mesh frame 4 is installed on the slider of each of the two first electric slide rails 3. Both mesh frames 4 contain montmorillonite desiccant 5. When air from the frame 1 passes through the mesh frames 4, the montmorillonite desiccant 5 effectively absorbs moisture from the air, thereby reducing humidity. A heating mechanism and a cooling and collection mechanism are installed on the side of the frame 1. The heating mechanism is used to... The montmorillonite desiccant 5 is heated to evaporate the moisture adsorbed within it, and a cooling and collection mechanism is used to collect the cooled water. A sliding frame 8 is slidably installed inside the frame 1, and the sliding frame 8 can be removed from the frame 1. The sliding frame 8 contains filter media 9, which can be removed upwards from the sliding frame 8. The filter media 9 is used to filter the air entering the frame 1. Magnetic strips 10 are symmetrically slidably installed on the left and right sides of the inner side of the sliding frame 8. Iron strips 11 are symmetrically installed on the left and right sides of the rear inner side of the sliding frame 8, and the magnetic strips 10 are used to adhere to the iron strips 11 and the frame 1. A winding mechanism is provided on the sliding frame 8, and two shielding cloths 13 are connected to the winding mechanism. The two shielding cloths 13 are respectively connected to the two magnetic strips 10. The shielding cloths 13 are used to shield the filter media 9 inside the sliding frame 8 to prevent particulate matter from falling off during the removal and transfer of the filter media 9, and to avoid particulate matter from drifting into the surrounding environment and causing secondary pollution.

[0030] See Figure 3 and Figure 4 As shown, the heating mechanism includes a closed frame 601 and a heater 602; the closed frame 601 is installed on the rear left side of the frame 1, and the lower side of the closed frame 601 is connected to the connecting frame 2; the heater 602 is installed on the right side of the closed frame 601.

[0031] See Figure 3 and Figure 4 As shown, the collection mechanism includes a fixed frame 701, a heat sink 702, a support frame 703, and a collection frame 704; the fixed frame 701 is provided on the top of the closed frame 601, and the top of the fixed frame 701 is inclined to guide the water droplets on it to slide backward; heat sinks 702 are installed at intervals on the top of the fixed frame 701 to accelerate the heat dissipation of the top of the fixed frame 701; the support frame 703 is installed on the rear side of the closed frame 601; the collection frame 704 is placed on the support frame 703 to collect the water droplets that slide down from the top of the fixed frame 701.

[0032] See Figure 7 and Figure 8 As shown, the winding mechanism includes a fabric winding shaft 1201 and a torsion spring 1202; the fabric winding shaft 1201 is symmetrically rotated on the front side inside the sliding frame 8, and two shielding cloths 13 are respectively wound around the two fabric winding shafts 1201, and the two shielding cloths 13 are respectively connected to the two fabric winding shafts 1201; torsion springs 1202 are connected between the upper and lower ends of the fabric winding shaft 1201 and the inside of the sliding frame 8.

[0033] In use, first install the frame 1 in the designated position and connect the air inlet of the frame 1 to the gas introduction device. Then, introduce the surrounding air into the frame 1 through the air inlet using the gas introduction device. The air enters the frame 1 and flows to the right. When the air in the frame 1 passes through the montmorillonite desiccant 5 in the mesh frame 4, the montmorillonite desiccant 5 will absorb the moisture in the air, thereby drying the air and reducing the humidity. After the air passes through the montmorillonite desiccant 5 in the mesh frame 4, the air will continue to flow to the right. When the air in the frame 1 passes through the filter media 9 in the sliding frame 8, the filter media 9 will filter the air. By drying the air in advance, it can effectively prevent the high humidity in the air from causing a decrease in the efficiency of the filter media 9, and also prevent the high humidity air from causing the filter media 9 to become moldy. After the air passes through the filter media 9 in the sliding frame 8, the air will continue to flow to the right until the filtered air is discharged from the air outlet of the frame 1. In this way, the air filtration operation is completed.

[0034] After a period of use, the right-side mesh frame 4 is moved forward by the first electric slide rail 3, and then the left-side mesh frame 4 is moved backward by the first electric slide rail 3, so that the montmorillonite desiccant 5 in the two mesh frames 4 is used alternately. When the mesh frame 4 moves backward into the closed frame 601, the heater 602 is activated to heat the mesh frame 4 in the closed frame 601, thereby heating the montmorillonite desiccant 5 in the mesh frame 4, thus evaporating the moisture adsorbed in the montmorillonite desiccant 5. After the moisture evaporates, the water vapor formed will float upward until it adheres to the top of the fixed frame 701, and then pass through the heat sink. Heater 702 dissipates heat from the top of the fixed frame 701, causing water vapor to condense into water droplets. The water droplets on the inclined surface of the top of the fixed frame 701 then slide backward under the influence of gravity into the collection frame 704 for collection. After the montmorillonite desiccant 5 has finished heating, heater 602 is turned off. In this way, the moisture in the montmorillonite desiccant 5 can be removed by heating, allowing the montmorillonite desiccant 5 to be reused. After the collection frame 704 contains an appropriate amount of water, it is manually removed and the water inside is cleaned. Then the collection frame 704 is put back in its original position.

[0035] When the filter media 9 needs to be replaced or cleaned, the surrounding air is stopped from being introduced into the frame 1 through the gas introduction device. Then, the sliding frame 8 is pulled forward, causing the filter media 9, iron strip 11, and cloth winding shaft 1201 to move forward. Since the magnetic strip 10 is attracted to the frame 1, as the cloth winding shaft 1201 moves forward, the magnetic strip 10 will cause the shielding cloth 13 to unfold, allowing the shielding cloth 13 to shield the filter media 9, thereby preventing particles on the filter media 9 from being dispersed into the surrounding environment after falling off. The shielding cloth 13 will also cause the cloth winding shaft 1201 to rotate, causing the torsion spring 1202 to deform. When the iron strip 11 comes into contact with the magnetic strip 10, the magnetic strip 10 will be attracted to the iron strip 11. As the sliding frame 8, filter media 9, iron strip 11, and cloth winding shaft 1201 continue to move forward, the iron strip 11 pushes the magnetic strip 10 forward, separating the magnetic strip 10 from the frame 1. Then, a person manually moves the sliding frame 8 to transfer the filter media 9 to a designated location. At this location, the magnetic strip 10 is pulled away from the iron strip 11, separating it from the iron strip 11. The magnetic strip 10 is then released, causing the torsion spring 1202 to return to its original position. The torsion spring 1202 then reverses and resets the cloth winding shaft 1201, causing it to wind up the shielding cloth 13. This prevents the shielding cloth 13 from obstructing the filter media 9 and causes it to pull the magnetic strip 10. Move the slide frame 8 away from the iron bar 11 to reset it. Then remove the filter media 9 from the sliding frame 8, clean the sliding frame 8, and wash or replace the filter media 9. Then put the cleaned or replaced filter media 9 back into the sliding frame 8. Next, pull the magnetic strip 10 to move it closer to the iron bar 11, so that the magnetic strip 10 drives the shielding cloth 13 to unfold, thereby shielding the cleaned or replaced filter media 9. The shielding cloth 13 drives the cloth rolling shaft 1201 to rotate, and the torsion spring 1202 deforms. When the magnetic strip 10 contacts the iron bar 11, the magnetic strip 10 will be attracted to the iron bar 11 for fixation. Then push the sliding frame 8 back into the machine frame 1, so that the sliding frame 8 can move back into the machine frame 1. The frame 8 moves the filter media 9, iron strip 11, magnetic strip 10, and cloth winding shaft 1201 backward. When the magnetic strip 10 contacts the frame 1, it will be attracted to the frame 1. At the same time, the frame 1 will block the movement of the magnetic strip 10. Then, as the sliding frame 8, filter media 9, iron strip 11, and cloth winding shaft 1201 continue to move backward, the iron strip 11 will separate from the magnetic strip 10, and the torsion spring 1202 will gradually return to its original state. The torsion spring 1202 drives the cloth winding shaft 1201 to reverse and reset, so that the cloth winding shaft 1201 can roll up the shielding cloth 13, so that the shielding cloth 13 no longer blocks the filter media 9, so that the filter media 9 can perform filtration within the frame 1. In this way, the replacement or cleaning of the filter media 9 can be completed.

[0036] See Figure 4 As shown, it also includes a magnetic block 14. The bottom of the collection frame 704 is provided with a magnetic block 14, which is used to attach to the support frame 703 to limit the position of the collection frame 704.

[0037] By setting the magnetic block 14, when the collection frame 704 is removed from the support frame 703, the collection frame 704 will cause the magnetic block 14 to separate from the support frame 703. Then, when the collection frame 704 is put back on the support frame 703, the collection frame 704 will cause the magnetic block 14 to come into contact with the support frame 703. By having the magnetic block 14 adhere to the support frame 703, the collection frame 704 can be limited, thereby improving the stability of the collection frame 704.

[0038] See Figure 9 and Figure 10 As shown, it also includes a cleaning mechanism, which includes a second electric slide rail 15, a connecting block 16, an electric push rod 17, an air outlet frame 18, and an air pipe 19. The second electric slide rail 15 is provided inside the frame 1. The connecting block 16 is connected to the slider of the second electric slide rail 15. The electric push rod 17 is connected to the connecting block 16. The air outlet frame 18 is connected to the telescopic rod of the electric push rod 17. The air outlet frame 18 is used to spray gas to flush off the particles on the filter material 9. The air pipe 19 is connected to the frame 1, and one end of the air pipe 19 is connected to the air outlet frame 18.

[0039] See Figure 11 As shown, it also includes a collection mechanism, which includes a collection box 20 and a magnetic plate 21. The collection box 20 is provided at the bottom of the frame 1. The collection box 20 is used to collect particles that fall off the filter media 9. The magnetic plates 21 are symmetrically arranged on the side of the collection box 20. The magnetic plates 21 are used to adhere to the bottom of the frame 1 to fix the collection box 20.

[0040] See Figure 12 As shown, it also includes an air supply mechanism, which includes an air compressor pump 22, an air tank 23, and an electrically controlled valve 24. The air compressor pump 22 and the air tank 23 are installed on the side of the frame 1. The air outlet of the air compressor pump 22 is connected to the air inlet of the air tank 23, and the air outlet of the air tank 23 is connected to the other end of the air pipe 19. An electrically controlled valve 24 is installed on the air pipe 19.

[0041] By setting up a cleaning mechanism, a centralizing mechanism, and an air supply mechanism, air can be drawn into the air storage tank 23 by the air compressor pump 22 for storage during use. After use, the air outlet frame 18 can be moved closer to the filter media 9 by the electric push rod 17. Then, the connecting block 16, the electric push rod 17, and the air outlet frame 18 are moved back and forth by the second electric slide rail 15. Finally, the electric control valve 24 is opened, allowing the compressed air in the air storage tank 23 to flow into the air outlet frame 18 through the air pipe 19. This causes the air outlet frame 18 to blow the compressed air toward the filter media 9, thereby blowing the particles adhering to the filter media 9 to the left. The particles fall into the collection box 20 for collection, allowing the filter media 9 to be cleaned after use. After the filter media 9 is cleaned, the electric control valve 24 is closed, and the exhaust frame 18 is moved away from the filter media 9 by the electric push rod 17. Then, the collection box 20 is removed from the bottom of the frame 1, separating the magnetic plate 21 on the collection box 20 from the frame 1. The particles in the collection box 20 are then cleaned, and the collection box 20 is put back in its original position, separating the magnetic plate 21 on the collection box 20 from the frame 1. This allows the magnetic plate 21 to adhere to the frame 1 and fix the collection box 20 in place.

Claims

1. A filter with a moisture-proof function, comprising a frame (1), wherein the frame (1) is provided with an air inlet and an air outlet, characterized in that, A connecting frame (2) is installed on the frame (1). At least two first electric slide rails (3) are provided inside the connecting frame (2). A mesh frame (4) is installed on the slider of the first electric slide rail (3). Montmorillonite desiccant (5) is provided inside the mesh frame (4). The montmorillonite desiccant (5) is used to dry the moisture in the air. A heating mechanism and a cooling collection mechanism are installed on the side of the frame (1). The heating mechanism is used to heat the montmorillonite desiccant (5) to evaporate the moisture inside the montmorillonite desiccant (5). The cooling collection mechanism is used to collect the cooled water. A sliding device is installed inside the frame (1). A sliding frame (8) is provided, and filter material (9) is provided inside the sliding frame (8). The filter material (9) is used to filter the air entering the machine frame (1). Magnetic strips (10) are symmetrically slidably arranged on the sliding frame (8). Iron strips (11) are also symmetrically arranged on the sliding frame (8). The magnetic strips (10) are used to be attracted to the iron strips (11) and the machine frame (1). A winding mechanism is provided on the sliding frame (8). Two shielding cloths (13) are connected to the winding mechanism. The shielding cloths (13) are connected to the magnetic strips (10). The shielding cloths (13) are used to shield the filter material (9) inside the sliding frame (8). The winding mechanism includes a cloth winding shaft (1201) and a torsion spring (1202). The cloth winding shaft (1201) is symmetrically rotated inside the sliding frame (8). Two shielding cloths (13) are respectively connected to the two cloth winding shafts (1201). A torsion spring (1202) is connected between the cloth winding shaft (1201) and the inner side of the sliding frame (8).

2. A filter with moisture-proof function as described in claim 1, characterized in that, The heating mechanism includes a closed frame (601) and a heater (602). The closed frame (601) is installed on the side of the frame (1). The closed frame (601) is connected to the connecting frame (2). The heater (602) is installed on the side of the closed frame (601).

3. A filter with moisture-proof function as described in claim 2, characterized in that, The collection mechanism includes a fixed frame (701), a heat sink (702), a support frame (703), and a collection frame (704). The fixed frame (701) is provided on the top of the closed frame (601). The top of the fixed frame (701) is inclined. Heat sinks (702) are installed at intervals on the top of the fixed frame (701). The support frame (703) is installed on the side of the closed frame (601). The collection frame (704) is provided on the support frame (703). The collection frame (704) is used to collect water droplets that slide down from the top of the fixed frame (701).

4. A filter with moisture-proof function as described in claim 3, characterized in that, It also includes a magnetic block (14), which is provided at the bottom of the collection box (704). The magnetic block (14) is used to attach to the support frame (703) to limit the collection box (704).

5. A filter with moisture-proof function as described in claim 4, characterized in that, It also includes a cleaning mechanism, which includes a second electric slide rail (15), a connecting block (16), an electric push rod (17), an air outlet frame (18), and an air pipe (19). The second electric slide rail (15) is provided inside the frame (1). The connecting block (16) is connected to the slider of the second electric slide rail (15). The electric push rod (17) is connected to the connecting block (16). The air outlet frame (18) is connected to the telescopic rod of the electric push rod (17). The air outlet frame (18) is used to spray gas to flush off the particles on the filter material (9). The air pipe (19) is connected to the frame (1). One end of the air pipe (19) is connected to the air outlet frame (18).

6. A filter with moisture-proof function as described in claim 5, characterized in that, It also includes a collection mechanism, which includes a collection box (20) and a magnetic plate (21). The bottom of the frame (1) is provided with a collection box (20), which is used to collect particles falling from the filter material (9). The sides of the collection box (20) are symmetrically provided with magnetic plates (21), which are used to adhere to the bottom of the frame (1) to fix the collection box (20).

7. A filter with moisture-proof function as described in claim 6, characterized in that, It also includes an air delivery mechanism, which includes an air compressor pump (22), an air tank (23) and an electric control valve (24). The air compressor pump (22) and the air tank (23) are installed on the side of the frame (1). The air outlet of the air compressor pump (22) is connected to the air inlet of the air tank (23). The air outlet of the air tank (23) is connected to the other end of the air pipe (19). An electric control valve (24) is installed on the air pipe (19).

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