Water surface cleaning equipment and method

Abstract

The invention discloses water surface cleaning equipment and method, the water surface cleaning equipment comprises a first cavity and a second cavity, water needing to be filtered sequentially enters the first cavity and the second cavity and then flows out through a water outlet, valves are arranged among the first cavity, the second cavity and the water outlet, filtering assemblies are arranged at the valves, water flow can be filtered twice, and the filtering efficiency is improved. The second cavity is divided into an upper part and a lower part by the driving disc unit, and the water pressure of the upper cavity and the water pressure of the lower cavity are changed by repeatedly moving the driving disc unit up and down, so that the water pressure of the upper cavity and the water pressure of the lower cavity are changed; certain driving force is formed on water flow, so that internal blockage is avoided, and the internal filtering efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning, and relates to a water surface cleaning device and method. Background Art

[0002] At present, water surface treatment is still a major pain point in water environment treatment. Eutrophication of lakes can be seen everywhere around us. The waters of scenic lakes are polluted by algae, domestic garbage, kitchen waste, etc. The traditional manual inspection and salvage cleaning methods are too laborious, complicated to process, and the cleaning boat is too large, which is not suitable for cleaning some small and medium-sized scenic lakes. In order to improve the efficiency of water surface cleaning and save manpower and material resources, an innovative, lightweight and automated water surface cleaning robot came into being.

[0003] According to the patent [CN 212024916] a hydraulic algae removal device and the patent [CN 218058605] ecological floating island device, both use mechanical devices such as guide plates and rotating paddles to complete the suction and discharge process. The filter device currently on the market draws the electrolyte stock solution into the electrolyte filter, and then under the action of natural forces, the electrolyte will enter from the water inlet, pass through the filter element, and there are dense holes on the stainless steel filter element. These uniform small holes are the aperture of the electrolyte filter. The disadvantage is that the aperture is small and the filtering mechanism is not flexible, which will cause easy clogging and difficult to clean during the filtering process. Secondly, the surface garbage purification and collection ship has been issued on the market, but it is too large, the cost is high, the area occupied by the water affects the viewing, and it is not easy to operate in medium-sized waters, so it is not suitable for the cleaning of landscape lakes. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that water surface cleaning equipment is easily clogged and difficult to clean during filtration, and at the same time, the existing equipment is too large, occupies a large area of ​​water, and is difficult to operate in medium-sized waters, and to provide a water surface cleaning device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water surface cleaning device comprises a shell, wherein a first cavity and a second cavity which are connected to each other are arranged inside the shell, a plurality of valves are arranged between the first cavity and the second cavity, a filter assembly is arranged at the valve, a water inlet is arranged on the first cavity, a water outlet is arranged on the shell, and the water outlet is connected to the second cavity through one or more valves;

[0007] A drive disk unit is disposed inside the second cavity, and the drive disk unit divides the second cavity into an upper cavity and a lower cavity which are spaced apart from each other;

[0008] A canard-like wing and a driving unit are arranged on the side wall of the shell, and the canard-like wing is rotatably connected to the shell.

[0009] A further improvement of the present invention is:

[0010] A partition is provided between the first cavity and the second cavity, a mounting groove is provided on the partition, and a valve and a filter assembly are installed on the mounting groove;

[0011] The valve is opened or closed by a motor drive.

[0012] The filter component is a filter net.

[0013] The drive disk unit includes a connecting shaft, on which a drive motor is arranged, a drive end of the drive motor is connected to a rotating disk, and the rotating disk is rotatably connected to a second transmission rod and a first transmission rod in turn, the first transmission rod is connected to a pressure plate, and the pressure plate divides the second cavity into an upper cavity and a lower cavity that are spaced apart.

[0014] The rotating disks are symmetrically distributed along the two ends of the connecting shaft.

[0015] A top cover is arranged at the upper end of the shell, and the water inlet is opened on the top cover.

[0016] A motor cavity is provided on the side wall of the shell, a motor is placed in the motor cavity, and a driving end of the motor is connected to a canard-like wing.

[0017] The driving unit comprises a driving housing, a driving motor is arranged inside the driving housing, the driving motor is connected to a rotating shaft, and the rotating shaft is connected to a propeller.

[0018] There are two symmetrical canard-like wings.

[0019] A water surface cleaning method comprises the following steps:

[0020] The water flows into the first cavity and the second cavity in sequence from the water inlet, at which time the valve connected to the water outlet is closed and the other valves are opened;

[0021] When the second cavity is filled with water, the drive disc unit moves upward, and at this time, the valve in the upper cavity connected to the water outlet is opened, and other valves in the upper cavity are closed, and the water in the upper cavity is discharged through the water outlet;

[0022] When the drive disc unit moves downward, the valve in the lower cavity connected to the water outlet is opened, and other valves in the lower cavity are closed, and the water in the lower cavity is discharged through the water outlet;

[0023] When the liquid flows, the filter assembly filters the debris in the first cavity and the second cavity in sequence.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention discloses a water surface cleaning device, comprising a first cavity and a second cavity, wherein water to be filtered will enter the first cavity and the second cavity in sequence and then flow out through a water outlet, valves are provided between the first cavity, the second cavity and the water outlet, and a filter assembly is provided at the valve, so that the water flow can be filtered twice, and the filtered impurities with a larger volume will mainly remain in the first cavity, which is not only convenient for later cleaning, but also will not cause blockage at the outlet of the second cavity, wherein the drive disk unit divides the second cavity into two upper and lower parts, and by repeatedly moving the drive disk unit up and down, the water pressure of the upper and lower cavities is changed, thereby forming a certain driving force for the water flow, avoiding internal blockage, and improving the internal filtering efficiency.

[0026] The present invention discloses a water surface cleaning method. When filtering and cleaning water, the water first enters a first cavity through an upper water inlet. At this time, larger debris in the water will also enter the first cavity. When the water begins to enter the second cavity through a valve, the first layer of filtering of a filter component will block larger debris in the first cavity. At this time, the aperture size of a filter screen at a valve corresponding to a water outlet in the second cavity can be adjusted. When the water in the second cavity is discharged through the water outlet, a filter screen with a smaller aperture will perform a second filtration on the water to block smaller debris in the second cavity. After two blocks, larger debris is filtered into the first cavity, and smaller debris is filtered into the second cavity, thereby improving the cleaning efficiency of the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a structural exploded diagram of the present invention;

[0029] Figure 2 It is the overall structure diagram of the present invention;

[0030] Figure 3 It is a top cover structure diagram of the present invention;

[0031] Figure 4 It is the internal structure diagram of the present invention;

[0032] Figure 5 It is a schematic diagram of valve closing of the present invention;

[0033] Figure 6 It is a schematic diagram of the valve opening of the present invention;

[0034] Figure 7 A side view of a drive disk unit of the present invention;

[0035] Figure 8 It is an exploded view of the drive disk unit of the present invention;

[0036] Fig. 9 It is an assembly diagram of the drive disk unit of the present invention;

[0037] Fig.10 is a structural diagram of a driving unit of the present invention;

[0038] Fig.11 This is a diagram of the internal state of the initial cleaning stage of the present invention;

[0039] Fig.12 It is an internal state diagram of the present invention when the pressure plate moves upward;

[0040] Fig.13 This is a diagram of the internal state of the pressure plate of the present invention when it moves downward.

[0041] Among them: 1-bolt fastener; 2-washer; 3-chassis; 4-housing; 5-inner tube; 6-mounting plate; 7-canard; 8-top cover; 9-valve; 10-sliding cover; 11-water outlet; 12-drive unit; 13-rotating transmission rod;

[0042] 3-1-chassis mounting hole; 3-2-mounting slot; 3-3-cavity; 3-4-drive unit mounting area; 3-5-motor cavity;

[0043] 5-1-rotating disk; 5-2-connecting shaft; 5-3-first transmission rod; 5-4-pressure plate;

[0044] 8-1-top cover mounting hole; 8-2-water inlet; 8-3-circuit cavity; DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0050] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0052] See also Figure 1 The embodiment of the present invention discloses a water surface cleaning device, including a shell body (water suction port, water discharge port, one-way plate), a driving disc, a rotating rod, a driving motor, an inner cylinder and other components. The outer cylinder is heptagonal in front view and side view, connected with four suction ports at the top, and provided with a water outlet at the rear; the water outlet at the rear of the shell is connected with the inner cylinder to form a drainage channel; the motor is located under the top cover above the shell and at the canard-like positions on both sides, and the output end is matched with the driving disc and the rotating rod in sequence, responsible for power operation; the pressure cover is matched with the inner cylinder above it; the solid-liquid separation module in the inner cylinder is located at the front end of the inner cylinder, below the water inlet, and faces the impact of the incoming water flow laterally, and specifically includes the following structures:

[0053] Example 1

[0054] See also Figure 1 to Figure 2The embodiment of the present invention discloses a water surface cleaning device, including a shell 4, wherein a first cavity and a second cavity which are interconnected are arranged inside the shell 4, a plurality of valves 9 are arranged between the first cavity and the second cavity, a filter assembly is arranged at the valve 9, a water inlet is arranged on the first cavity, a water outlet 11 is arranged on the shell 4, and the water outlet 11 is connected to the second cavity through one or more valves 9; a drive disk unit is arranged inside the second cavity, and the drive disk unit divides the second cavity into an upper cavity and a lower cavity which are spaced apart; a canard-like wing 7 and a drive unit 12 are arranged on the side wall of the shell 4, and the canard-like wing 7 is rotatably connected to the shell 4.

[0055] Further, in this embodiment, a top cover 8 is provided at the upper end of the housing 4, and the lower end is connected to the chassis 3, and the overall shape is heptagonal, wherein the top cover 8 and the chassis 3 are assembled with the housing 4 by bolt fasteners 1 and washers 2. Specifically, a chassis mounting hole 3-1 is provided on the end surface of the chassis 3, see Figure 3 There is a top cover mounting hole 8-1 on the top cover 8, and a mounting plate 6 is arranged on the inner wall of the shell 4. The shell mounting holes are opened on the mounting plate 6. The mounting plate 6 is located near the upper and lower ends of the shell 4, and cooperates with the top cover mounting hole 8-1 and the chassis mounting hole 3-1 to achieve assembly.

[0056] See also Figure 3 Furthermore, in this embodiment, a water inlet is provided on the top cover 8. Specifically, four water inlets 8-2 are provided on the top cover 8. The four water inlets 8-2 are distributed at intervals. A circuit cavity 8-3 is also provided on the top cover 8. A sliding cover 10 is provided on the circuit cavity 8-3. The circuit cavity 8-3 is mainly used for placing circuit components.

[0057] Furthermore, in the present embodiment, the water to be filtered will enter the first cavity and the second cavity in sequence and then flow out through the water outlet. Valves are provided between the first cavity, the second cavity and the water outlet, and a filter assembly is provided at the valve. The water flow can be filtered twice, and the filtered impurities with a larger volume will mainly remain in the first cavity, which is not only convenient for later cleaning, but also will not cause blockage at the outlet of the second cavity. The drive disk unit divides the second cavity into two parts, an upper and a lower part. By repeatedly moving the drive disk unit up and down, the water pressure of the upper and lower cavities is changed, thereby forming a certain driving force for the water flow, avoiding internal blockage, and improving the internal filtering efficiency.

[0058] Example 2

[0059] The embodiment of the present invention discloses a water surface cleaning device, including a shell 4, wherein a first cavity and a second cavity which are interconnected are arranged inside the shell 4, a plurality of valves 9 are arranged between the first cavity and the second cavity, a filter assembly is arranged at the valve 9, a water inlet is arranged on the first cavity, a water outlet 11 is arranged on the shell 4, and the water outlet 11 is connected to the second cavity through one or more valves 9; a drive disk unit is arranged inside the second cavity, and the drive disk unit divides the second cavity into an upper cavity and a lower cavity which are spaced apart; a canard-like wing 7 and a drive unit 12 are arranged on the side wall of the shell 4, and the canard-like wing 7 is rotatably connected to the shell 4, a partition is arranged between the first cavity and the second cavity, an installation groove 3-2 is arranged on the partition, and a valve 9 and a filter assembly are installed on the installation groove 3-2; the valve 9 is opened or closed by a motor drive.

[0060] Furthermore, in this embodiment, the housing 4 is in a heptagonal structure.

[0061] Furthermore, in this embodiment, a plurality of valves 9 are distributed along the circumference of the partition, and are distributed in two circles up and down, wherein two corresponding valves 9 up and down are connected to the water outlet 11, and the other valves 9 are connected to the first cavity and the second cavity.

[0062] See also Figure 4 Furthermore, in this embodiment, a cavity 3 - 3 is provided on one side of the second cavity, a water outlet 11 is opened on the cavity 3 - 3 , and the second cavity is connected with the cavity 3 - 3 through a valve 9 .

[0063] See also Figure 4 , further, in this embodiment, the specific installation structure of the valve 9 is:

[0064] A partition is arranged between the first cavity and the second cavity, and a mounting groove 3-2 is provided on the partition. A valve 9 is installed on the mounting groove 3-2. The valve 9 is two matching one-way plates, and the one-way plates are rotatably connected to the side walls of the mounting groove 3-2. Figures 5 and 6 The opening and closing angle of the one-way plate is 90°, and the outer wall of the one-way plate is an arc-shaped structure, which can better cooperate with the water flow. Among them, the one-way plate cooperates with the MG995 steering gear to achieve opening and closing. This embodiment does not specifically limit the installation position of the MG995 steering gear, as long as the electronic control of the one-way plate can be achieved.

[0065] Furthermore, in this embodiment, the filter component is a filter screen, and the size of the filter aperture on the filter screen can be adjusted according to actual conditions.

[0066] Furthermore, in this embodiment, the specific structure of the drive disk unit is:

[0067] See also Figures 7 to 9, wherein the second cavity is the inner cylinder 5, the driving disk unit includes a connecting shaft 5-2, a driving motor is arranged on the connecting shaft 5-2, two driving motors are arranged, and the two driving motors are axially distributed along the connecting shaft 5-2, the driving end of each driving motor is connected to the rotating disk 5-1, the two rotating disks 5-1 are located at both ends of the connecting shaft 5-2, the driving disk 5-1 is rotatably connected to the second transmission rod, the second transmission rod is rotatably connected to the first transmission rod 5-3, and the first transmission rod 5-3 is rotatably connected to the pressure plate 5-4, specifically, a connecting block is arranged on the pressure plate 5-4, a rotating shaft is arranged on the side wall of the connecting block, and the rotating shaft is rotatably connected to the transmission rod 5-3.

[0068] In this embodiment, the first transmission rod 5-3, the second transmission rod and the pressure plate 5-4 use a single-axis transmission hinge to make the bottom negative pressure plate reciprocate up and down, thereby generating negative pressure opening and closing power.

[0069] See also Fig.10 Further, in this embodiment, the drive unit installation area 3-4 is mainly a location for installing the drive unit 12, and two drive units 12 are arranged at intervals, wherein the specific structure of the drive unit 12 is:

[0070] The driving unit 12 includes a driving housing 12-1, wherein a driving motor is arranged inside the driving housing 12-1, wherein the driving motor is connected to a rotating shaft 12-2, wherein the rotating shaft 12-2 is connected to a propeller 12-3, and the driving unit 12 provides power for the device to move forward.

[0071] Furthermore, in this embodiment, two canard-like wings 7 are symmetrically arranged, specifically:

[0072] On the side wall of the housing 4, see Figure 4 A corresponding motor cavity 3-5 is opened, and a motor is placed in the motor cavity 3-5. A rotating transmission rod 13 is provided at the driving end of the motor. The rotating transmission rod 13 is connected to the canard-like wing 7. The motor drives the canard-like wing 7 to rotate. The canard-like wing 7 controls the movement direction of the body through steering and is used to balance the stable movement of the body in the water.

[0073] Example 3

[0074] See also Figures 11 to 13 This embodiment also discloses a water surface cleaning method, comprising the following steps:

[0075] The flowing water enters the first cavity and the second cavity in sequence from the water inlet, at which time the valve 9 connected to the water outlet 11 is closed, and the other valves 9 are opened;

[0076] When the second cavity is filled with water, the drive disc unit moves upward, and at this time, the valve 9 in the upper cavity connected to the water outlet 11 is opened, and the other valves 9 in the upper cavity are closed, and the water in the upper cavity is discharged through the water outlet 11;

[0077] When the drive disk unit moves downward, the valve 9 in the lower cavity connected to the water outlet 11 is opened, and the other valves 9 in the lower cavity are closed, and the water in the lower cavity is discharged through the water outlet 11;

[0078] When the liquid flows, the filter assembly filters the debris in the first cavity and the second cavity in sequence.

[0079] Specifically, in this embodiment, the upper cavity and the lower cavity are each connected to the water outlet 11 by a valve 9. When the whole machine is put into water, the chamber will be filled with water. At this time, the valves 9 corresponding to the upper cavity and the lower cavity are closed, and the other valves are opened. Fig.11 ;

[0080] The pressure plate 5-4 is driven to move upward, and the space of the upper cavity becomes smaller. The valve 9 in the upper cavity connected to the water outlet 11 is opened, and other valves are closed. At this time, the water in the upper cavity is discharged through the water outlet 11. Fig.12 ;

[0081] The pressure plate 5-4 is driven to move downward, and the space of the lower cavity becomes smaller. The valve 9 in the lower cavity connected to the water outlet 11 is opened, and the other valves 9 are closed. At this time, the water in the lower cavity is discharged through the water outlet 11. Fig.13 ;

[0082] When the pressure plate 5 - 4 moves downward or upward, the pressure in the corresponding cavity space increases, driving the water flow to be discharged quickly, accelerating the driving force of the internal water flow, and improving the filtering efficiency of the water flow.

[0083] During filtering, water flows first into the first cavity through the upper water inlet 8-2. At this time, larger debris in the water flow will also enter the first cavity. When the water flows through the valve 9 and begins to enter the second cavity, the larger debris will be blocked in the first cavity due to the first layer of filtration of the filter. At this time, the aperture size of the filter at the valve 9 corresponding to the water outlet 11 in the second cavity can be adjusted. When the water in the second cavity is discharged through the water outlet 11, the filter with a smaller aperture will perform a second filtration on the water flow to block smaller debris in the second cavity. After two blockages, larger debris is filtered into the first cavity, and smaller debris is filtered into the second cavity, thereby improving the cleaning efficiency of the water flow.

[0084] At the same time, after the top cover 3 is removed, the first cavity and the second cavity are two separate chambers, which is convenient for cleaning of debris.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water surface cleaning device, characterized in that: The invention comprises a shell (4), wherein a first cavity and a second cavity which are connected to each other are arranged inside the shell (4), a plurality of valves (9) are arranged between the first cavity and the second cavity, a filter assembly is arranged at the valve (9), a water inlet is arranged on the first cavity, a water outlet (11) is arranged on the shell (4), and the water outlet (11) is connected to the second cavity through one or more valves (9); A drive disk unit is disposed inside the second cavity, and the drive disk unit divides the second cavity into an upper cavity and a lower cavity which are spaced apart from each other; A canard-like wing (7) and a drive unit (12) are arranged on the side wall of the outer shell (4), and the canard-like wing (7) is rotatably connected to the outer shell (4).

2. A water surface cleaning device according to claim 1, characterized in that: A partition is provided between the first cavity and the second cavity, a mounting groove (3-2) is provided on the partition, and a valve (9) and a filter assembly are installed on the mounting groove (3-2); The valve (9) is opened or closed by being driven by a motor.

3. A water surface cleaning device according to claim 2, characterized in that: The filter component is a filter net.

4. A water surface cleaning device according to claim 1, characterized in that: The drive disk unit comprises a connecting shaft (5-2), a driving motor is arranged on the connecting shaft (5-2), a driving end of the driving motor is connected to a rotating disk (5-1), the rotating disk (5-1) is rotatably connected to a second transmission rod and a first transmission rod (5-3) in turn, the first transmission rod (5-3) is connected to a pressure plate (5-4), and the pressure plate (5-4) divides the second cavity into an upper cavity and a lower cavity which are spaced apart.

5. A water surface cleaning device according to claim 4, characterized in that: The rotating disks (5-1) are symmetrically distributed along the two ends of the connecting shaft (5-2).

6. A water surface cleaning device according to claim 1, characterized in that: A top cover (8) is provided at the upper end of the outer shell (4), and the water inlet is opened on the top cover (8).

7. A water surface cleaning device according to claim 1, characterized in that: A motor cavity (3-5) is provided on the side wall of the housing (4), a motor is placed in the motor cavity (3-5), and a driving end of the motor is connected to a canard-like wing (7).

8. A water surface cleaning device according to claim 1, characterized in that: The drive unit (12) comprises a drive housing (12-1), a drive motor is arranged inside the drive housing (12-1), the drive motor is connected to a rotating shaft (12-2), and the rotating shaft (12-2) is connected to a propeller (12-3).

9. A water surface cleaning device according to claim 1, characterized in that: The canard-like wings (7) are symmetrically arranged in two pieces.

10. A water surface cleaning method, characterized in that: The following steps are involved: The flowing water enters the first cavity and the second cavity in sequence from the water inlet, at which time the valve (9) connected to the water outlet (11) is closed, and the other valves (9) are opened; When the second cavity is filled with water, the drive disk unit moves upward, and at this time, the valve (9) in the upper cavity connected to the water outlet (11) is opened, and the other valves (9) in the upper cavity are closed, and the water in the upper cavity is discharged through the water outlet (11); When the drive disk unit moves downward, the valve (9) in the lower cavity connected to the water outlet (11) is opened, and the other valves (9) in the lower cavity are closed, so that the water in the lower cavity is discharged through the water outlet (11); When the liquid flows, the filter assembly filters the debris in the first cavity and the second cavity in sequence.

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