A filter that can be cleaned for reuse

Abstract

The application relates to a reusable filter which can be cleaned, comprising a shell, a wire mesh filter layer and a fan, a cylindrical containing chamber is arranged in the shell, an air inlet pipe and an air outlet pipe are arranged on the shell, and the air inlet pipe and the air outlet pipe are communicated with the containing chamber; the wire mesh filter layer is provided in plurality, the plurality of wire mesh filter layers are slidingly connected along the axis of the containing chamber, the plurality of wire mesh filter layers are rotationally connected in the containing chamber, the plurality of wire mesh filter layers are arranged in dislocation, and external gas enters the containing chamber from the air inlet pipe and then passes through the plurality of wire mesh filter layers and is discharged from the air outlet pipe; the fan is arranged in the air outlet pipe, and the fan is used for discharging the gas from the containing chamber. The application has the effect of improving the convenience of filter cleaning.

Description

Technical Field

[0001] This application relates to the technical field of industrial waste gas purification, and in particular to a filter that can be cleaned and reused. Background Technology

[0002] With the increasing environmental requirements for products such as electronics and semiconductors, production processes need to be carried out in dust-free environments. This has led to the emergence of more and more air purification equipment. Most of these air purification devices require the use of filters to filter the air. In the process of exhaust gas treatment, because the process exhaust gas contains sticky particulate matter, if it is not treated properly, it will affect the normal operation of subsequent treatment equipment and even cause safety accidents. Therefore, using filters is the best way to remove particulate matter from exhaust gas. The process is simple to operate, has good treatment effect, and low cost.

[0003] In related technologies, the filter includes a housing, a wire mesh filter layer, and a fan. The housing has a cylindrical receiving chamber. An inlet pipe and an outlet pipe are installed on the housing and connected to the receiving chamber. External gas can enter the receiving chamber through the inlet pipe and then exit through the outlet pipe. Multiple wire mesh filter layers are disposed within the receiving chamber and distributed along the axis of the chamber. As gas travels from the inlet pipe to the outlet pipe, it passes through these multiple wire mesh filter layers within the receiving chamber. These filter layers filter viscous particulate matter from the gas entering the receiving chamber through the inlet pipe. The fan is located on the outlet pipe and draws gas in through the inlet pipe and discharges it through the outlet pipe.

[0004] The aforementioned technologies have the drawback that, because multiple wire mesh filter layers are fixedly connected within the housing chamber, a large amount of sticky particles will adhere to the wire mesh filter layers after the filter has been used for a period of time. Therefore, it is necessary to disassemble and clean or replace the multiple wire mesh filter layers, resulting in low convenience of filter cleaning. Summary of the Invention

[0005] To improve the ease of cleaning filters, this application provides a washable and reusable filter.

[0006] This application provides a washable and reusable filter using the following technical solution:

[0007] A washable and reusable filter includes a housing, wire mesh filter layers, and a fan. The housing has a cylindrical receiving chamber inside, and an inlet pipe and an outlet pipe are provided on the housing, both connected to the receiving chamber. Multiple wire mesh filter layers are provided, slidably connected along the axis of the receiving chamber, rotatably connected within the receiving chamber, and staggered. External gas enters the receiving chamber through the inlet, passes through the multiple wire mesh filter layers, and is discharged through the outlet pipe. The fan is located on the outlet pipe and is used to discharge gas from the receiving chamber through the outlet pipe.

[0008] By adopting the above technical solution, when the sticky particles on the wire mesh filter layer need to be cleaned after the filter has been filtering industrial waste gas for a period of time, the spacing between multiple wire mesh filter layers is adjusted by sliding the wire mesh filter layer to the inner wall of the receiving chamber. Then, the multiple wire mesh filter layers are rotated, and the centrifugal force generated during the rotation process separates the sticky particles from the wire mesh filter layer. At the same time, pure gas is discharged into the receiving chamber through the air inlet pipe by external equipment, and the gas in the receiving chamber is discharged from the receiving chamber by a fan. This design eliminates the need to disassemble multiple wire mesh filter layers for cleaning or replacement, thus improving the convenience of filter cleaning.

[0009] Optionally, the sidewall of the receiving chamber is provided with a sliding groove, the extension direction of the sliding groove being parallel to the axial direction of the receiving chamber, and a sliding block is slidably connected in the sliding groove. Multiple sliding blocks are provided, each allowing multiple wire mesh filter layers to rotate and connect. A magnetic block is slidably connected to the outer sidewall of the housing. Multiple magnetic blocks are provided, each attracting one of the sliding blocks. A locking element is provided in the sliding groove to hold the sliding block at a predetermined position within the sliding groove.

[0010] By adopting the above technical solution, when it is necessary to adjust the distance between multiple wire mesh filter layers, it is only necessary to change the distance between multiple magnetic blocks. Through the adsorption between the magnetic blocks and the sliding blocks, the position of multiple sliding blocks in the slide groove is changed. At the same time, the locking device keeps multiple sliding blocks in the predetermined position in the slide groove, thus realizing the change of the distance between multiple wire mesh filter layers. This design method does not require electric control of the sliding of the wire mesh filter layers, thereby helping to reduce the cost of cleaning the wire mesh filter layers.

[0011] Optionally, the bottom of the slide groove is provided with a locking groove, and the locking element includes a locking rod and a locking spring. The locking rod is slidably connected in the locking groove and can extend out of the opening of the locking groove. The end of the locking rod away from the bottom of the locking groove will abut against the sliding block. The locking spring is disposed in the locking groove, one end of the locking spring is connected to the bottom of the locking groove, and the other end is connected to the side of the locking rod near the bottom of the locking groove. The locking spring has elastic potential energy to cause the locking rod to extend out of the locking groove.

[0012] By adopting the above technical solution, after the sliding block slides to the predetermined position in the slide groove, the side of the sliding block near the bottom of the slide groove will cover the locking groove. The locking rod will be compressed into the locking groove, and the locking rod will abut against the sliding block by the restoring force of the locking spring, so that the sliding block is kept in the predetermined position in the slide groove.

[0013] Optionally, the locking component further includes a locking block and a locking button. The locking block is slidably embedded in the bottom of the slide groove and can extend out from the bottom of the slide groove. The locking block is embedded near the periphery of the opening of the locking groove, and the side of the locking block extending out of the bottom of the slide groove is used to abut against the sliding block. The locking button is located at the bottom of the locking groove and is located inside the locking spring. When the locking rod abuts against the locking button, the locking block will move in the direction of extending out of the bottom of the slide groove.

[0014] By adopting the above technical solution, due to the setting of the locking block and locking button, when the sliding block covers the locking groove, the locking rod will be compressed. At this time, the locking rod will abut against the locking button under the action of the locking spring. The locking button will then cause the locking block to slide towards the sliding block, so that the locking block and the sliding block form abutment with a predetermined pressure, thereby further locking the sliding block to minimize the sliding of the sliding block in the groove during the rotation of the wire mesh filter layer.

[0015] Optionally, a rotating shaft is provided around the periphery of the wire mesh filter layer, and the side of the rotating shaft away from the wire mesh filter layer is rotatably connected to the sliding block via a bearing; the axis of the air outlet pipe is horizontally arranged, and the fan is located on the side of the air outlet pipe away from the housing; a water inlet pipe is provided on the inner wall of the receiving chamber, and the water inlet pipe extends out of the housing, with the water outlet located on one side of the wire mesh filter layer; when water is discharged from the water inlet pipe, the wire mesh filter layer rotates; and the water outlet pipe is located on the side of the air outlet pipe closest to the housing.

[0016] By adopting the above technical solution, when cleaning the wire mesh filter layer, water will flow out from the inlet pipe. Since the outlet of the inlet pipe is located on one side of the wire mesh filter layer, when the inlet pipe discharges water, one side of the wire mesh filter layer will deflect under the impact of the water flow. Through the continuous impact of the water flow, the wire mesh filter layer can be rotated. At the same time, under the action of the water flow, the sticky particles on the wire mesh filter layer can be further separated from the wire mesh filter layer, thereby further improving the cleaning effect of the wire mesh filter layer.

[0017] Optionally, the air outlet pipe is provided with a baffle ring between the water outlet pipe and the blower, and the baffle ring is used to block the water flow.

[0018] By adopting the above technical solution, due to the setting of the blocking ring, when cleaning multiple wire mesh filter layers, it is possible to minimize the flow of water from the air outlet pipe into the fan, thereby preventing damage to the inside of the fan.

[0019] Optionally, the side of the blocking ring closest to the water outlet pipe is configured as an inclined surface.

[0020] By adopting the above technical solution, due to the setting of the inclined plane, if the inclined plane and the side of the air outlet pipe near the water outlet pipe form an acute angle, then after the water flow collides with the blocking ring, the rebound of the water flow will not exceed the maximum height of the inclined plane under the action of the inclined plane. If the inclined plane and the side of the air outlet pipe near the water outlet pipe form an obtuse angle, when the water flow moves to the inclined plane, the water flow will slide down the inclined plane under the action of its own gravity, thus better blocking the water flow.

[0021] Optionally, it also includes a circulation tank, the bottom of which is provided with a sedimentation section, and a sludge discharge port is provided on the side of the circulation tank near the sedimentation section. The end of the water inlet pipe outside the receiving chamber extends into the circulation tank, and a water pump is provided on the water inlet pipe to pump the clean water in the circulation tank into the receiving chamber. The water outlet pipe is connected to the circulation tank.

[0022] By adopting the above technical solution, due to the setting of the circulation box, when cleaning the wire mesh filter layer, the water flow carries away the sticky particles on the wire mesh filter layer. Then, the water flow will enter the circulation box through the outlet pipe, and the sticky particles will be settled in the sedimentation section of the circulation box. The water at the top will be pumped into the receiving chamber by the water pump to clean the wire mesh filter layer. In this way, the collected sewage can be reused after the filter residue is settled, which fully saves water resources.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Because multiple wire mesh filter layers slide and rotate within the receiving chamber, when the filter needs to clean the sticky particles on the wire mesh filter layers after filtering industrial waste gas for a period of time, the spacing between the multiple wire mesh filter layers is adjusted by sliding the wire mesh filter layers to the inner wall of the receiving chamber. Then, the multiple wire mesh filter layers are rotated, and the centrifugal force generated during the rotation process separates the sticky particles from the wire mesh filter layers. At the same time, pure gas is discharged into the receiving chamber through the air inlet pipe through an external device, and the gas in the receiving chamber is discharged from the receiving chamber by a fan. This design eliminates the need to disassemble and clean or replace multiple wire mesh filter layers, thus improving the convenience of filter cleaning.

[0025] 2. When cleaning the wire mesh filter layer, water will flow out from the inlet pipe. Since the outlet of the inlet pipe is located on one side of the wire mesh filter layer, one side of the wire mesh filter layer will deflect under the impact of the water flow when the inlet pipe discharges water. Through the continuous impact of the water flow, the wire mesh filter layer can be rotated. At the same time, under the action of the water flow, the sticky particles on the wire mesh filter layer can be further separated from the wire mesh filter layer, thereby further improving the cleaning effect of the wire mesh filter layer.

[0026] 3. Due to the design of the circulation tank, when cleaning the wire mesh filter layer, the water flow carries away the sticky particles on the wire mesh filter layer. Then, the water flows into the circulation tank through the outlet pipe, where the sticky particles are settled in the sedimentation section. The water at the top is then pumped into the receiving chamber by a water pump to clean the wire mesh filter layer. This allows the collected wastewater to be reused after the filter residue has settled, thus conserving water resources. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the filter structure in this embodiment.

[0028] Figure 2 This is a cross-sectional view made in this embodiment to show the internal structure of the receiving chamber.

[0029] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0030] Explanation of reference numerals in the attached drawings: 1. Shell; 11. Receiving chamber; 12. Air inlet pipe; 13. Air outlet pipe; 131. Blocking ring; 14. Sliding groove; 15. Sliding block; 16. Locking groove; 2. Wire mesh filter layer; 21. Rotating shaft; 3. Fan; 4. Magnetic block; 5. Locking element; 51. Locking rod; 52. Locking spring; 53. Locking block; 54. Locking button; 6. Water inlet pipe; 61. Water pump; 7. Water outlet pipe; 8. Circulation tank; 81. Sedimentation section; 82. Sludge discharge port. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses a washable and reusable filter. (See also...) Figure 1 and Figure 2 The washable and reusable filter includes a housing 1, a wire mesh filter layer 2, and a blower 3. Specifically, the housing 1 is cylindrical, and a receiving chamber 11 is provided inside the housing 1. The receiving chamber 11 is also cylindrical, and its axis is parallel to the vertical direction and coaxial with the axis of the housing 1. An air inlet pipe 12 is provided in the middle of the top surface of the housing 1, and the air inlet pipe 12 is connected to the receiving chamber 11. An air outlet pipe 13 is provided in the middle of the bottom surface of the housing 1, and the air outlet pipe 13 is connected to the receiving chamber 11, and the extension direction of the air outlet pipe 13 is horizontal; from the axis parallel to the receiving chamber 11. From the direction of the lines, the wire mesh filter layer 2 is circular. Multiple wire mesh filter layers 2 are provided, and the wire meshes of the multiple wire mesh filter layers 2 are arranged in an interlaced manner. In this embodiment, three wire mesh filter layers 2 are provided. The three wire mesh filter layers 2 are distributed at intervals along the axis of the receiving chamber 11, and the wire mesh filter layers 2 can slide along the axis of the receiving chamber 11. Moreover, the wire mesh filter layers 2 are rotatably connected to the side wall of the receiving chamber 11, and the rotation center line of the wire mesh filter layers 2 is perpendicular to the axis of the receiving chamber 11. The fan 3 is provided on the side of the air outlet pipe 13 away from the housing 1. The fan 3 is used to discharge the gas in the receiving chamber 11 from the air outlet pipe 13.

[0033] Reference Figure 1 When cleaning the sticky particles on the wire mesh filter layer 2, first adjust the distance between the three wire mesh filter layers 2 to a predetermined distance. Then rotate the three wire mesh filter layers 2 along the rotation center line. The sticky particles attached to the wire mesh filter layer 2 are separated by centrifugal force. At the same time, pure gas is introduced into the receiving chamber 11, and the gas in the receiving chamber 11 is extracted by the fan 3 to carry the sticky particles out of the receiving chamber 11. This eliminates the need to disassemble and clean multiple wire mesh filter layers 2 or replace them, thus improving the convenience of filter cleaning.

[0034] Reference Figure 1 and Figure 2 A sliding groove 14 is provided in the receiving chamber 11. The sliding groove 14 has a rectangular cross-section when viewed from the groove opening direction. The length direction of the sliding groove 14 is parallel to the axis of the receiving chamber 11. There are two sliding grooves 14, which are symmetrically arranged along the axis of the receiving chamber 11. Sliding blocks 15 are slidably connected in the sliding grooves 14. The sliding blocks 15 are cuboid in shape. In this embodiment, there are three sets of sliding blocks 15 corresponding to the number of mesh filter layers 2. There are two sliding blocks 15 in each set. The two opposite sidewalls of the three sliding blocks 15 in the same sliding groove 14 are slidably connected in the sliding groove 14 by a slide rail. Rotating shafts 21 are fixedly provided on both opposite sides of a mesh filter layer 2. The rotating shafts 21 are cylindrical. The two rotating shafts 21 are rotatably connected to the two sliding blocks 15 in a set of sliding blocks 15 through bearings, bringing them closer to each other. At the center of one side; at the same time, a magnetic block 4 is slidably connected to the outer wall of the housing 1. Three magnetic blocks 4 are set corresponding to the number of wire mesh filter layers 2. The magnetic blocks 4 are in the shape of a ring and are slidably sleeved on the housing 1. One magnetic block 4 will attract two sliding blocks 15 in a group. At the same time, the magnetic blocks 4 have a certain attraction effect on the side of the wire mesh filter layer 2 so that the wire mesh filter layer 2 can return to the horizontal position under the attraction effect of the magnetic blocks 4 after rotation. A locking member 5 is also provided in the slide groove 14. The locking member 5 keeps the multiple sliding blocks 15 in the predetermined position of the slide groove 14. Therefore, when it is necessary to change the distance between the wire mesh filter layers 2, it is only necessary to slide the multiple magnetic blocks 4. By changing the distance between the multiple magnetic blocks 4, and at the same time keeping the multiple sliding blocks 15 in the predetermined position of the slide groove 14 by the locking member 5, the distance between the multiple wire mesh filter layers 2 can be changed.

[0035] Reference Figure 2 and Figure 3A locking groove 16 is provided at the bottom of the slide groove 14. The locking groove 16 has a circular cross-section when viewed from the groove opening. In this embodiment, five locking grooves 16 are provided in one slide groove 14. The five locking grooves 16 in one slide groove 14 are spaced apart along the length of the slide groove 14, and the three locking grooves 16 in the middle are close to each other, while the two locking grooves 16 on both sides are far apart. The locking component 5 includes a locking rod 51, a locking spring 52, a locking block 53, and a locking button. Button 54, specifically, the locking rod 51 is a telescopic rod. One end of the locking rod 51 is fixedly connected to the bottom of the locking groove 16, and the end of the locking rod 51 away from the bottom of the locking groove 16 extends out of the locking groove 16. The portion of the locking rod 51 extending out of the locking groove 16 is rounded, and this rounded portion is used to abut against the sliding block 15. The locking spring 52 is located inside the locking rod 51. One end of the locking spring 52 is fixedly connected to the bottom of the locking groove 16, and the other end... One end is fixedly connected to the rounded head of the locking rod 51. The locking block 53 is arc-shaped, and ten sets of locking blocks 53 are provided. Each set of locking blocks 53 has two locking blocks 53. The two locking blocks 53 in a set will slide and be embedded in the edge of the locking groove 16, and the two locking blocks 53 will be symmetrically arranged along the axis of the locking groove 16. In this embodiment, the locking blocks 53 are slidable by a miniature cylinder (not shown in the figure); the locking button 54 is provided in the locking groove 16, locking... The locking button 54 is located in the locking spring 52. When the locking rod 51 retracts, the head of the locking rod 51 abuts against the locking button 54. At this time, the locking button 54 will generate a signal to extend the locking block 53. When the sliding block 15 covers the locking groove 16, the locking rod 51 will be compressed so that the locking rod 51 abuts against the locking button 54. Then the locking block 53 extends and abuts against the sliding block 15. The sliding block 15 is held in the predetermined position by frictional contact.

[0036] Reference Figure 1 and Figure 2A water inlet pipe 6 is provided on the housing 1, and the water inlet pipe 6 is connected to the top of the receiving chamber 11. Viewed from a direction parallel to the axis of the receiving chamber 11, the water outlet of the water inlet pipe 6 is located on one side of the rotation center line of the wire mesh filter layer 2. A water outlet pipe 7 is provided on the side of the air outlet pipe 13 near the housing 1, and a blocking ring 131 is provided at the position between the air outlet pipe 13 and the water outlet pipe 7 and the fan 3. The blocking ring 131 has an annular cross-section when viewed from the axis of the air outlet pipe 13, and the side of the blocking ring 131 near the water outlet pipe 7 is set as a slope. In this embodiment, this slope is close to the water outlet pipe 7. One side of the outlet pipe 7 is in the form of an acute angle, while in other embodiments it can be in the form of an obtuse angle. When the water flows into the receiving chamber 11 from the inlet pipe 6, the wire mesh filter layer 2 will deflect under the action of the water flow. Through the continuous impact of the water flow, the wire mesh filter layer 2 can be rotated, and at the same time, the sticky particles on the wire mesh filter layer 2 can be removed. After cleaning, the water will flow out from the outlet pipe 7. At the same time, the water flow is blocked by the blocking ring 131 to prevent it from entering the fan 3 and damaging the internal components of the fan 3, thereby realizing the rotation of the wire mesh filter layer 2 multiple times.

[0037] Reference Figure 1 and Figure 2 In addition, this embodiment also includes a circulation tank 8, which has a conical sedimentation section 81 at the bottom. A sludge discharge port 82 is provided on the side of the sedimentation section 81 away from the circulation tank 8. The sludge discharge port 82 is sealed by a sludge discharge cover thread. The end of the water inlet pipe 6 outside the receiving chamber 11 extends into the circulation tank 8 from the top. At the same time, the end of the water outlet pipe 7 away from the air outlet pipe 13 extends into the circulation tank 8 from the side wall. The water flowing through the receiving chamber 11 re-enters the circulation tank 8 through the water outlet pipe 7 and the viscous particles in the water flow are settled by the sedimentation section 81. The water inlet pipe 6 pumps the upper pure liquid in the circulation tank 8 into the receiving chamber 11 through the water pump 61 to clean the wire mesh filter layer 2. Thus, the collected sewage can be reused after sedimentation and filter residue removal, which fully saves water resources.

[0038] The implementation principle of a washable and reusable filter according to an embodiment of this application is as follows: When cleaning the sticky particles on the wire mesh filter layer 2, the distance between multiple wire mesh filter layers 2 is adjusted so that the wire mesh filter layers 2 do not interfere when rotating. Then, the multiple wire mesh filter layers 2 are rotated, and the centrifugal force generated by the rotation separates the sticky particles attached to the wire mesh filter layer 2. The gas in the receiving chamber 11 is extracted by the fan 3, and at the same time, the sticky particles are carried out of the receiving chamber 11 by introducing pure gas into the receiving chamber 11. Thus, the purpose of cleaning the wire mesh filter layer 2 can be achieved, thereby helping to improve the convenience of filter cleaning.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A washable and reusable filter, characterized in that: The device includes a housing (1), a wire mesh filter layer (2), and a fan (3). The housing (1) has a cylindrical receiving chamber (11) inside. The housing (1) is provided with an air inlet pipe (12) and an air outlet pipe (13), both of which are connected to the receiving chamber (11). Multiple wire mesh filter layers (2) are provided, and the multiple wire mesh filter layers (2) slide along the axis of the receiving chamber (11). Then, multiple mesh filter layers (2) are rotatably connected in the receiving chamber (11). The multiple mesh filter layers (2) are staggered. After the external gas enters the receiving chamber (11) from the air inlet pipe (12), it will pass through the multiple mesh filter layers (2) and then be discharged from the air outlet pipe (13). The fan (3) is set in the air outlet pipe (13). The fan (3) is used to discharge the gas from the receiving chamber (11) to the air outlet pipe (13). The side wall of the receiving chamber (11) is provided with a sliding groove (14), the extension direction of the sliding groove (14) is parallel to the axial direction of the receiving chamber (11), a sliding block (15) is slidably connected in the sliding groove (14), multiple sliding blocks (15) are provided, and multiple sliding blocks (15) are respectively rotatably connected to multiple wire mesh filter layers (2); a magnetic block (4) is slidably connected on the outer side wall of the housing (1), multiple magnetic blocks (4) are provided, and multiple magnetic blocks (4) are respectively attracted to multiple sliding blocks (15); a locking member (5) is provided in the sliding groove (14), the locking member (5) is used to keep the sliding block (15) at a predetermined position in the sliding groove (14); A rotating shaft (21) is provided around the periphery of the wire mesh filter layer (2). The side of the rotating shaft (21) away from the wire mesh filter layer (2) is rotatably connected to the sliding block (15) through a bearing. The axis of the air outlet pipe (13) is set horizontally. The fan (3) is set on the side of the air outlet pipe (13) away from the housing (1). A water inlet pipe (6) is provided on the inner wall of the receiving chamber (11). The water inlet pipe (6) will pass through the housing (1). The water outlet of the water inlet pipe (6) is set on one side of the wire mesh filter layer (2). When water is discharged from the water inlet pipe (6), the wire mesh filter layer (2) will rotate. A water outlet pipe (7) is provided on the side of the air outlet pipe (13) close to the housing (1).

2. A washable and reusable filter according to claim 1, characterized in that: The bottom of the slide groove (14) is provided with a locking groove (16). The locking member (5) includes a locking rod (51) and a locking spring (52). The locking rod (51) is slidably connected in the locking groove (16). The locking rod (51) can extend out of the opening of the locking groove (16). The end of the locking rod (51) away from the bottom of the locking groove (16) will abut against the sliding block (15). The locking spring (52) is provided in the locking groove (16). One end of the locking spring (52) is connected to the bottom of the locking groove (16), and the other end is connected to the side of the locking rod (51) near the bottom of the locking groove (16). The locking spring (52) has elastic potential energy to make the locking rod (51) extend out of the locking groove (16).

3. A washable and reusable filter according to claim 2, characterized in that: The locking component (5) further includes a locking block (53) and a locking button (54). The locking block (53) is slidably embedded in the bottom of the slide groove (14). The locking block (53) can extend out from the bottom of the slide groove (14). The locking block (53) is embedded near the periphery of the opening of the locking groove (16). The side of the locking block (53) extending out from the bottom of the slide groove (14) is used to abut against the sliding block (15). The locking button (54) is located at the bottom of the locking groove (16). The locking button (54) is located inside the locking spring (52). When the locking rod (51) abuts against the locking button (54), the locking block (53) will move in the direction of extending out from the bottom of the slide groove (14).

4. A washable and reusable filter according to claim 1, characterized in that: The air outlet pipe (13) is provided with a blocking ring (131) between the water outlet pipe (7) and the fan (3), and the blocking ring (131) is used to block the water flow.

5. A washable and reusable filter according to claim 4, characterized in that: The blocking ring (131) is set with a slope on the side near the water outlet pipe (7).

6. A washable and reusable filter according to claim 1, characterized in that: It also includes a circulation tank (8), the bottom of which is provided with a sedimentation section (81), and a sludge discharge port (82) is provided on the side of the circulation tank (8) near the sedimentation section (81). The end of the water inlet pipe (6) outside the receiving chamber (11) extends into the circulation tank (8). A water pump (61) is provided on the water inlet pipe (6) to pump the clean water in the circulation tank (8) into the receiving chamber (11). The water outlet pipe (7) is connected to the circulation tank (8).

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