A cleaning valve convenient for filter element replacement and its usage method

Abstract

The present invention relates to the field of cleaning valves, and specifically to a cleaning valve convenient for filter element replacement and its usage method, including a valve body. A through groove in the shape of ∟ is formed in the inner wall of the valve body. A filtering mechanism is movably arranged inside the valve body. A locking mechanism is arranged at the bottom end of the valve body. Inlet and outlet holes are formed at both the top end and the bottom end of the valve body. For this cleaning valve convenient for filter element replacement, when the rotating sleeve rotates, it drives the compression of the sealing ring against the pipeline. At this time, when the output pipeline is pulled out, when the output pipeline moves out of the valve body, the extrusion plate will expand, causing the locking rod to contact and lock the filter cotton core, so that the filter cotton core can be taken out. Along with the rotation of the rotating cover, through the setting of the driving gear and the end face gear, the rotating cover drives the moving sleeve to move downward, causing the moving sleeve to squeeze the elastic sheet for sealing and fixing operations, which is convenient for operation.

Description

Technical Field

[0001] The present invention relates to the field of cleaning valves, and specifically to a cleaning valve convenient for filter element replacement and its usage method. Background Art

[0002] A cleaning valve, also known as a self-cleaning valve, is a valve with a self-filtering and cleaning function, widely used in fields such as domestic water use and industrial production. During its use, filtering and cleaning operations need to be carried out through internal filter elements, etc. However, with the long-term operation of the equipment, a large amount of filter residue and large waste will continuously accumulate inside, so it is necessary to clean and replace it regularly to prevent the filter element from breeding bacteria and emitting odors or getting blocked.

[0003] The inventor found that the following problems in the prior art have not been well solved: 1. When the existing device is in use, the structure is complex and the operation is cumbersome, which is not convenient for replacing the internal filter element and is not convenient for the use of the device; 2. Secondly, after disassembly and replacement, when the filter element is reinstalled into the valve, the connection tightness may be changed, resulting in leakage during the filtering process and being inconvenient for the use of the device. Summary of the Invention

[0004] The purpose of the present invention is to provide a cleaning valve convenient for filter element replacement and its usage method to solve the problems raised in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A cleaning valve convenient for filter element replacement, including a valve body. A through groove in the shape of ㄣ is opened in the inner wall of the valve body. A filtering mechanism is movably arranged inside the valve body. A locking mechanism is arranged at the bottom end of the valve body. Inlet and outlet holes are opened at both the top end and the bottom end of the valve body.

[0005] The filtering mechanism includes a filter cylinder and a pressing plate. The outer wall of the filter cylinder is inserted into the inner wall of the through groove. An inlet is opened on one side of the top end of the filter cylinder. A slot is opened at the top of the other end of the filter cylinder, and a filter cotton core passes through the slot. An output pipe is inserted at the bottom end of the filter cotton core, and the output pipe is inserted into the through groove. The pressing plate is movably arranged inside the through groove. A locking rod is fixedly connected to the front end of the pressing plate. The outer wall of the locking rod is inserted into the inner wall of the output pipe, and the end of the locking rod extends into the outer wall of the filter cotton core.

[0006] Preferably, the inlet of the filter cylinder is horizontally arranged with the inlet and outlet hole at the top end of the valve body. The filter cylinder is arranged in a cylindrical structure, and the inside of the filter cylinder is hollow. The surrounding side walls of the filter cylinder are composed of a filter mesh. The outer diameter of the filter cylinder matches the inner wall of the through groove.

[0007] Preferably, the filter cotton core is an activated carbon cotton core. The outer diameter of the filter cotton core matches the inner diameter of the through groove, and the bottom end of the filter cotton core is communicated with the output pipeline.

[0008] Preferably, the locking mechanism includes a rotating sleeve, a movable chamber, an elastic sheet and a transmission member. The top end of the rotating sleeve is rotatably arranged on the bottom wall of the inlet and outlet hole at the bottom end of the valve body. The shaft end of the rotating sleeve is provided with a sealing bearing. A face gear is sleeved on the outer wall of the rotating sleeve. The movable chamber is opened in the inner wall of the rotating sleeve. A threaded groove is opened in the inner wall of the movable chamber, and a movable sleeve is in threaded cooperation with the inner wall of the movable groove. The inner wall of the movable sleeve is fixedly sleeved and connected with the outer wall of the output pipeline. When the locking mechanism is in the locked state, the elastic sheet is fixed on the bottom wall of the movable sleeve. A sealing ring is fixed at the front end of the elastic sheet. The outer diameter of the sealing ring matches the inner diameter of the output pipeline. The transmission member is fixed at the rear end of the valve body.

[0009] Preferably, the transmission member includes a rotating cover and a driving gear. The rotating cover is in threaded cooperation with the rear end of the valve body. The inner side wall of the rotating cover is rotatably connected with the end of the filter cylinder. A plurality of tooth blocks are fixed on the outer wall of the rotating cover, and the plurality of tooth blocks are horizontally distributed at equal intervals on the outer wall of the rotating cover. The shaft end of the driving gear is rotatably arranged at the rear end of the valve body. The outer teeth of the driving gear are meshed with the rotating cover through a plurality of tooth blocks, and the outer teeth of the driving gear are meshed with the face gear.

[0010] Preferably, the rear end of the elastic sheet has a trapezoidal structure formed by machining. The inner walls on both sides of the movable sleeve have hypotenuses formed by machining, and the two groups of hypotenuses are arranged obliquely downward. The inclined surface on the movable sleeve matches the hypotenuse at the rear end of the elastic sheet.

[0011] Preferably, a storage box is sleeved on the outer wall of the output pipeline. The outer diameter of the storage box matches the outer diameter of the valve body, and a collection groove is opened in the inner wall of the storage box.

[0012] A method for using a cleaning valve convenient for filter element replacement, characterized by comprising the following steps:

[0013] S1. First, the staff manually rotates the rotating cover. Since the rotating cover is in threaded cooperation with the rear end of the valve body, the rotating cover can be opened. At the same time, due to the arrangement of a plurality of tooth blocks on the side wall of the rotating cover, the driving gear is synchronously driven to rotate, and the rotating cover will drive the filter cylinder to move forward;

[0014] S2. Next, with the rotation of the driving gear, the driving gear drives the end face gear below it to rotate. When the end face gear rotates, it drives the rotating sleeve to rotate. Since a threaded groove is provided in the inner wall of the rotating sleeve and the rotating sleeve is in threaded fit with the moving sleeve, with the rotation of the rotating sleeve, the moving sleeve moves upward, relieving the extrusion on the elastic piece, so that the elastic piece resets, causing the sealing ring to release the fitting connection with the output pipe. At this time, the output pipe can be drawn out through the filter cotton core;

[0015] S3. As described above, with the extraction of the filter cotton core, the pressing plate on the side wall of the output pipe is released from the extrusion restriction with the inner wall of the through groove, causing the pressing plate to pop out outward through the setting of the telescopic spring. The staff can manually draw out the pressing plate and the locking rod, making the filter cotton core loose. At this time, the filter cotton core can be taken out;

[0016] S4. With the disassembly of the filter cotton core, manually pull the rotating cover. The rotating cover drives the filter cylinder on its inner side wall to take out the filter cylinder. Manually take out the large debris in the filter cylinder. And through the setting of the filter cylinder, the large debris can be filtered first, and then filtered by the filter cotton core, improving the filtering effect;

[0017] S5. Finally, when the output pipe is drawn out, through the setting of the storage box sleeved on the outer wall of the output pipe, the residual wastewater inside can enter the storage groove for storage during extraction, avoiding the direct outflow of the residual wastewater and facilitating the use of the staff.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the present invention, when the rotating sleeve rotates, it drives the sealing ring to press on the pipe. At this time, when the output pipe is pulled out and the output pipe moves out of the valve body, it will cause the pressing plate to unfold, resulting in the locking rod releasing the locking of the filter cotton core, so that the filter cotton core can be taken out, and at the same time, the filter cylinder can be drawn out.

[0020] In the present invention, with the rotation of the rotating cover, the rotating cover drives the moving sleeve to move downward through the setting of the driving gear and the end face gear, causing the moving sleeve to press the elastic piece. Through the setting of the sealing ring on the elastic piece, the output pipe is tightly pressed and sealed and fixed, facilitating the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional structure diagram of the general assembly of the present invention;

[0022] Figure 2 It is a schematic connection structure diagram of the end face gear and the transmission part in the present invention;

[0023] Figure 3 It is a schematic external structure diagram of the device body of the present invention;

[0024] Figure 4 Schematic cross-sectional structure diagram of the locking mechanism in the present invention;

[0025] Figure 5 Schematic top view structure diagram of the connection between the filter cartridge and the filter cotton core in the present invention;

[0026] Figure 6 Schematic structure diagram of the connection between the extrusion plate, the locking rod and the filter cotton core in the present invention.

[0027] In the figure: 1. Valve body; 2. Filter mechanism; 21. Filter cartridge; 22. Filter cotton core; 23. Output pipeline; 24. Extrusion plate; 25. Locking rod; 3. Locking mechanism; 31. Rotating sleeve; 32. End face gear; 33. Activity bin; 34. Moving sleeve; 35. Sealing ring; 36. Elastic sheet; 37. Transmission part; 371. Rotating cover; 372. Tooth block; 373. Driving gear. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technical staff in the art without creative work belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a cleaning valve convenient for filter element replacement, including a valve body 1. A through groove in the shape of ㄣ is provided in the inner wall of the valve body 1. A filter mechanism 2 is movably arranged inside the valve body 1. A locking mechanism 3 is arranged at the bottom end of the valve body 1. Inlet and outlet holes are provided at both the top end and the bottom end of the valve body 1;

[0030] The filter mechanism 2 includes a filter cartridge 21 and an extrusion plate 24. The outer wall of the filter cartridge 21 is inserted into the inner wall of the through groove. An inlet is provided on one side of the top end of the filter cartridge 21. A slot is provided at the top of the other end of the filter cartridge 21, and a filter cotton core 22 penetrates through the inside of the slot. The bottom end of the filter cotton core 22 is inserted with an output pipeline 23. The output pipeline 23 is inserted into the through groove. The extrusion plate 24 is movably arranged inside the through groove. A locking rod 25 is fixedly connected to the front end of the extrusion plate 24. The outer wall of the locking rod 25 is inserted into the inner wall of the output pipeline 23, and the end of the locking rod 25 extends into the outer wall of the filter cotton core 22.

[0031] In this embodiment, as Figure 1 , Figure 2 and Figure 5As shown, the inlet of the filter cartridge 21 is horizontally arranged with the inlet and outlet holes at the top of the valve body 1, the filter cartridge 21 is arranged in a cylindrical structure, and the filter cartridge 21 is arranged hollow inside, and the side walls of the filter cartridge 21 are surrounded by a filter screen, and the outer diameter of the filter cartridge 21 matches the inner wall of the groove. Through the setting of the filter cartridge 21, large debris can be filtered first, and then filtered through the filter cotton core 22, so as to improve the filtering effect, facilitate the removal of internal impurities, facilitate the regular cleaning of the valve, and facilitate the use of the device.

[0032] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the filter cotton core 22 is an activated carbon cotton core. The outer diameter of the filter cotton core 22 matches the inner diameter of the through groove. The bottom end of the filter cotton core 22 is connected to the output pipe 23. As the output pipe 23 is pulled, the extrusion plate 24 on the output pipe 23 releases the extrusion restriction on the inner wall of the through groove, causing the extrusion plate 24 to pop out through the setting of the telescopic spring. The staff can manually pull out the extrusion plate 24 and the locking rod 25 to loosen the filter cotton core 22, and the filter cotton core 22 can be extracted at this time.

[0033] In this embodiment, Figure 1 , Figure 2 and Figure 6 As shown, the locking mechanism 3 includes a rotating sleeve 31, a movable chamber 33, an elastic sheet 36 and a transmission member 37. The top of the rotating sleeve 31 is rotatably arranged with the bottom wall of the inlet and outlet hole at the bottom end of the valve body 1. The axial end of the rotating sleeve 31 is provided with a sealing bearing. The outer wall of the rotating sleeve 31 is sleeved with an end gear 32. The movable chamber 33 is provided in the inner wall of the rotating sleeve 31. A threaded groove is provided in the inner wall of the movable chamber 33. A movable sleeve 34 is threadedly provided on the inner wall of the movable groove. The inner wall of the movable sleeve 34 is fixedly sleeved and connected with the outer wall of the output pipe 23. When the locking mechanism 3 is in a locked state, the elastic sheet 36 is fixed on the bottom wall of the movable sleeve 34. A sealing ring 35 is fixed on the front end of the elastic sheet 36. The outer diameter of the sealing ring 35 matches the inner diameter of the output pipe 23, and the transmission member 37 is fixed to the rear end of the valve body 1, so that along with the rotation of the driving gear 373, the driving gear 373 drives the end gear 32 below it to rotate. When the end gear 32 rotates, it will drive the rotating sleeve 31 to rotate. Since a thread groove is provided in the inner wall of the rotating sleeve 31, and the rotating sleeve 31 and the movable sleeve 34 are threadedly matched, as the rotating sleeve 31 rotates, the movable sleeve 34 moves upward, releasing the squeezing of the elastic sheet 36, so that the elastic sheet 36 is reset, causing the sealing ring 35 to release the fitting connection with the output pipe 23. At this time, the output pipe 23 can be connected to the filter cotton core 22 and pulled out.

[0034] In this embodiment, Figure 2 , Figure 3 andFigure 4 As shown in the figure, the transmission member 37 includes a rotating cover 371 and a driving gear 373. The rotating cover 371 is in threaded fit with the rear end of the valve body 1. The inner side wall of the rotating cover 371 is rotatably connected to the end of the filter cartridge 21. A plurality of tooth blocks 372 are fixed on the outer wall of the rotating cover 371, and the plurality of tooth blocks 372 are horizontally distributed at equal intervals on the outer wall of the rotating cover 371. The shaft end of the driving gear 373 is rotatably arranged with the rear end of the valve body 1. The external teeth of the driving gear 373 are meshed with the rotating cover 371 through a plurality of tooth blocks 372, and the external teeth of the driving gear 373 are meshed with the end face gear 32. By manually rotating the rotating cover 371, since the rotating cover 371 is in threaded fit with the rear end of the valve body 1, the rotating cover 371 can be opened. At the same time, due to the arrangement of the plurality of tooth blocks 372 on the side wall of the rotating cover 371, the driving gear 373 is synchronously driven to rotate, and the rotating cover 371 will drive the filter cartridge 21 to move forward.

[0035] In this embodiment, as Figure 4 shown, the rear end of the elastic sheet 36 has a trapezoidal structure formed by machining. The inner side walls on both sides of the moving sleeve 34 have inclined sides formed by machining, and the two groups of inclined sides are arranged with the inclined surfaces facing downwards. The inclined surface on the moving sleeve 34 matches the inclined side at the rear end of the elastic sheet 36. When the entire rotating cover 371 rotates in reverse, it drives the driving gear 373, the end face gear 32 and the rotating sleeve 31 to rotate in reverse, causing the moving sleeve 34 to move downwards. The moving sleeve 34 will squeeze the elastic sheet 36, causing the sealing ring 35 on the elastic sheet 36 to be closely attached to and connected with the output pipeline 23, increasing the sealing effect and also playing a role in reinforcement.

[0036] In this embodiment, as Figure 1 shown, a storage box is sleeved on the outer wall of the output pipeline 23, and the outer diameter of the storage box matches the outer diameter of the valve body 1. A collection groove is formed in the inner wall of the storage box. When the output pipeline 23 is pulled out, due to the arrangement of the storage box sleeved on the outer wall of the output pipeline 23, the residual wastewater inside can enter the storage groove for storage when being pulled out, avoiding the direct outflow of the residual wastewater and facilitating the use by the staff.

[0037] In this embodiment, as Figures 1 to 6 shown, a method for using a cleaning valve facilitating filter element replacement is characterized by including the following steps:

[0038] First, the staff manually rotates the rotating cover 371. Since the rotating cover 371 is in threaded fit with the rear end of the valve body 1, the rotating cover 371 can be opened. At the same time, due to the arrangement of the plurality of tooth blocks 372 on the side wall of the rotating cover 371, the driving gear 373 is synchronously driven to rotate, and the rotating cover 371 will drive the filter cartridge 21 to move forward;

[0039] S2. Then, along with the rotation of the driving gear 373, the driving gear 373 drives the end face gear 32 below it to rotate. When the end face gear 32 rotates, it drives the rotating sleeve 31 to rotate. Since a threaded groove is formed in the inner wall of the rotating sleeve 31 and the rotating sleeve 31 is in threaded fit with the moving sleeve 34, along with the rotation of the rotating sleeve 31, the moving sleeve 34 moves upward, relieving the extrusion on the elastic piece 36. Thus, the elastic piece 36 resets, causing the sealing ring 35 to release the fitting connection with the output pipe 23. At this time, the output pipe 23 can be withdrawn through the filter cotton core 22;

[0040] S3. As described above, along with the withdrawal of the filter cotton core 22, the pressing plate 24 on the side wall of the output pipe 23 releases the extrusion restriction with the inner wall of the through groove, causing the pressing plate 24 to pop out outward through the arrangement of the telescopic spring. The staff can manually withdraw the pressing plate 24 and the locking rod 25, causing the filter cotton core 22 to become loose. At this time, the filter cotton core 22 can be taken out;

[0041] S4. Along with the disassembly of the filter cotton core 22, manually pull the rotating cover 371. The rotating cover 371 drives the filter cylinder 21 on its inner side wall to take out the filter cylinder 21. Manually take out the large debris in the filter cylinder 21. And through the arrangement of the filter cylinder 21, the large debris can be filtered first, and then filtered by the filter cotton core 22, improving the filtering effect;

[0042] S5. Finally, when the output pipe 23 is withdrawn, through the arrangement of the storage box sleeved on the outer wall of the output pipe 23, the residual wastewater inside can enter the storage groove for storage during the withdrawal, preventing the direct outflow of the residual wastewater and facilitating the use of the staff.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning valve facilitating filter element replacement, comprising a valve body (1), characterized in that: A through groove in the shape of "ㄣ" is formed in the inner wall of the valve body (1). A filtering mechanism (2) is movably arranged inside the valve body (1). A locking mechanism (3) is arranged at the bottom end of the valve body (1). Through holes are formed at both the top and bottom ends of the valve body (1). The filtering mechanism (2) includes a filtering cylinder (21) and a pressing plate (24). The outer wall of the filtering cylinder (21) is inserted into the inner wall of the through groove. An inlet is formed at one side of the top end of the filtering cylinder (21). A slot is formed at the top of the other end of the filtering cylinder (21), and a filter cotton core (22) penetrates through the slot. An output pipe (23) is inserted at the bottom end of the filter cotton core (22). The output pipe (23) is inserted into the through groove. The pressing plate (24) is movably arranged inside the through groove. A locking rod (25) is fixedly connected to the front end of the pressing plate (24). The outer wall of the locking rod (25) is inserted into the inner wall of the output pipe (23), and the end of the locking rod (25) extends into the outer wall of the filter cotton core (22). The locking mechanism (3) includes a rotating sleeve (31), a movable chamber (33), an elastic sheet (36), and a transmission member (37). The top end of the rotating sleeve (31) is rotatably arranged on the bottom wall of the through hole at the bottom end of the valve body (1). The shaft end of the rotating sleeve (31) is provided with a sealed bearing. A face gear (32) is sleeved on the outer wall of the rotating sleeve (31). The movable chamber (33) is formed in the inner wall of the rotating sleeve (31). A threaded groove is formed in the inner wall of the movable chamber (33), and a movable sleeve (34) is in threaded cooperation with the inner wall of the movable chamber. The inner wall of the movable sleeve (34) is fixedly sleeved with the outer wall of the output pipe (23). When the locking mechanism (3) is in a locked state, the elastic sheet (36) is fixed on the bottom wall of the movable sleeve (34). A sealing ring (35) is fixed to the front end of the elastic sheet (36). The outer diameter of the sealing ring (35) matches the inner diameter of the output pipe (23). The transmission member (37) is fixed to the rear end of the valve body (1). The transmission member (37) includes a rotating cover (371) and a driving gear (373). The rotating cover (371) is in threaded cooperation with the rear end of the valve body (1). The inner side wall of the rotating cover (371) is rotatably connected to the end of the filtering cylinder (21). A plurality of tooth blocks (372) are fixed on the outer wall of the rotating cover (371), and the plurality of tooth blocks (372) are horizontally distributed at equal intervals on the outer wall of the rotating cover (371). The shaft end of the driving gear (373) is rotatably arranged at the rear end of the valve body (1). The outer teeth of the driving gear (373) are meshed with the rotating cover (371) through a plurality of tooth blocks (372), and the outer teeth of the driving gear (373) are meshed with the face gear (32).

2. The cleaning valve facilitating filter element replacement according to claim 1, wherein: The inlet of the filter cartridge (21) is horizontally arranged with the inlet and outlet hole at the top of the valve body (1). The filter cartridge (21) is arranged in a cylindrical structure, and the inside of the filter cartridge (21) is hollow. The peripheral side wall of the filter cartridge (21) is surrounded by a filter screen. The outer diameter of the filter cartridge (21) matches the inner wall of the through groove.

3. The cleaning valve facilitating filter element replacement according to claim 2, wherein: The filter cotton core (22) is an activated carbon cotton core. The outer diameter of the filter cotton core (22) matches the inner diameter of the through groove. The bottom end of the filter cotton core (22) is communicated with the output pipe (23).

4. The cleaning valve facilitating filter element replacement according to claim 3, wherein: The rear end of the elastic piece (36) has a trapezoidal structure formed by machining. The inner walls on both sides of the moving sleeve (34) have inclined edges formed by machining, and the two groups of inclined edges are arranged with the inclined surfaces facing downwards. The inclined surface on the moving sleeve (34) matches the inclined edge at the rear end of the elastic piece (36).

5. The cleaning valve facilitating filter element replacement according to claim 4, wherein: A storage box is sleeved on the outer wall of the output pipe (23). The outer diameter of the storage box matches the outer diameter of the valve body (1). A collection groove is opened in the inner wall of the storage box.

6. The usage method of a cleaning valve facilitating filter element replacement according to claim 5, characterized in that: Including the following steps: S1. First, the staff manually rotates the rotating cover (371). Since the rotating cover (371) is in threaded cooperation with the rear end of the valve body (1), the rotating cover (371) can be opened. At the same time, due to the arrangement of several tooth blocks (372) on the side wall of the rotating cover (371), the driving gear (373) is synchronously driven to rotate, and the rotating cover (371) drives the filter cartridge (21) to move forward. S2. Then, with the rotation of the driving gear (373), the driving gear (373) drives the end face gear (32) below it to rotate. When the end face gear (32) rotates, it drives the rotating sleeve (31) to rotate. Since a threaded groove is opened in the inner wall of the rotating sleeve (31) and the rotating sleeve (31) is in threaded cooperation with the moving sleeve (34), with the rotation of the rotating sleeve (31), the moving sleeve (34) moves upward, relieving the extrusion on the elastic piece (36). Thus, the elastic piece (36) resets, causing the sealing ring (35) to release the fitting connection with the output pipe (23). At this time, the output pipe (23) can be connected to the filter cotton core (22) and pulled out. S3. Similarly, with the extraction of the filter cotton core (22), the pressing plate (24) on the side wall of the output pipe (23) releases the extrusion restriction with the inner wall of the through groove, causing the pressing plate (24) to pop out outward through the setting of the telescopic spring. The staff can manually pull out the pressing plate (24) and the locking rod (25), loosening the filter cotton core (22). At this time, the filter cotton core (22) can be extracted. S4. With the disassembly of the filter cotton core (22), manually pull the rotating cover (371). The rotating cover (371) drives the filter cartridge (21) on its inner side wall, takes out the filter cartridge (21), manually takes out the large debris in the filter cartridge (21), and through the setting of the filter cartridge (21), the large debris can be filtered first, and then filtered through the filter cotton core (22) to improve the filtering effect. S5. Finally, when extracting through the output pipeline (23), the setting of the storage box sleeved on the outer wall of the output pipeline (23) enables the residual wastewater inside to enter the storage tank for storage during extraction, preventing the direct outflow of the residual wastewater and facilitating the use by the staff.

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