Sewage tank and cleaning system

Abstract

The invention relates to a sewage tank and a cleaning system. The sewage tank comprises a tank cover and a tank body, the shunting assembly is connected with the box cover and is provided with a first part and a second part, a separation part is formed between the first part and the second part, and the separation part is in sealing contact with the box body and divides the box body into a first cavity and a second cavity; wherein the first part is positioned in the first cavity and comprises a sewage inlet; the second part is located in the second cavity and comprises a circulation opening and a first channel section of a sewage pumping channel; external sewage can flow into the first cavity through the sewage inlet and enter the second cavity through the circulation opening, and sewage in the second cavity can enter the first channel section through the circulation opening. By providing the sewage tank meeting multiple requirements, the multifunctional arrangement of the cleaning system can be supported, and the functions of the cleaning system are more complete.

Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and in particular to a sewage tank and a cleaning system. Background Art

[0002] At present, some floor scrubbers include a host and a base station. The host is provided with a host fan and a host sewage tank, and the base station is provided with a base station fan and a sewage discharge system. When the host is performing mopping or self-cleaning, the host fan is turned on, and negative pressure is generated in the host sewage tank through the host fan, and the generated sewage is sucked into the host sewage tank; after the host is docked to the base station, the base station fan on the base station is turned on, and negative pressure is generated in the base station sewage tank through the base station fan, so as to suck the sewage in the host sewage tank into the base station sewage tank, thereby automatically cleaning the host sewage tank. However, the above-mentioned dual-fan structure is relatively complex, costly, and not conducive to installation and maintenance. Summary of the invention

[0003] Based on this, it is necessary to provide a sewage tank and a cleaning system that can simplify the cleaning system in response to the above technical problems.

[0004] In a first aspect, the present application provides a sewage tank, comprising:

[0005] Box cover and box body;

[0006] A flow dividing assembly connected to the box cover, comprising a first part and a second part, wherein a partition is formed between the first part and the second part, and the partition is in sealing contact with the box body to divide the box body into a first chamber and a second chamber;

[0007] Wherein, the first part is located in the first cavity and includes a sewage inlet; the second part is located in the second cavity and includes a circulation port and a first channel section of the sewage extraction channel;

[0008] External sewage can flow into the first cavity through the sewage inlet and enter the second cavity through the circulation port. The sewage in the second cavity can enter the first channel section through the circulation port.

[0009] In one embodiment, the flow port is disposed in the bottom of the second portion, close to the first portion.

[0010] In one embodiment, the diversion component comprises:

[0011] a first air flow channel, communicating with the first cavity;

[0012] a second air flow channel, communicating with the second cavity;

[0013] When the sewage tank is under negative pressure, the second air flow channel makes the negative pressure in the second chamber greater than the negative pressure in the first chamber, driving the sewage in the first chamber into the second chamber through the flow port.

[0014] In one embodiment, the diversion component comprises:

[0015] The filter element comprises a first filter element and a second filter element, wherein the first filter element is located in the first cavity and the second filter element is located in the second cavity, and is used for filtering sewage flowing into the sewage inlet.

[0016] In one embodiment, the second part includes an openable cover, and a fluid channel is provided between the cover and the second filter element;

[0017] The sewage filtered by the first filter element reaches the flow port through the fluid channel and enters the second chamber.

[0018] In one embodiment, a locking structure is provided between the second portion and the cover body, and the locking structure has an unlocked state and an unlocked state, so that the cover body has an open state and a closed state accordingly.

[0019] In one of the embodiments, the cover body is provided with an abutment; when the diversion assembly is installed in the sewage tank, there is an extrusion force between the abutment and the inner wall of the box body, which is used to drive the cover body to a closed state by the extrusion force when the locking structure is in an unlocked state.

[0020] In one embodiment, the first filter element and the second filter element are pivotally connected;

[0021] The first filter element rotates in a direction away from the diverter assembly under the driving force of an external force in a first direction, and drives the second filter element to separate from the diverter assembly under the driving force of an external force in a second direction.

[0022] In one of the embodiments, the filter element includes a flow guide element, and the flow guide element is arranged close to the sewage inlet.

[0023] In one embodiment, the first part further includes a second channel section of the sewage extraction channel, and the box cover includes a sewage outlet and a third channel section of the sewage extraction channel;

[0024] The sewage in the second chamber can enter the first channel section, the second channel section and the third channel section in sequence through the circulation port, and flow out through the sewage outlet.

[0025] In one embodiment, the sewage tank further comprises:

[0026] The sewage inlet channel is connected to the sewage inlet port, so that external sewage enters the sewage tank through the sewage inlet channel and the sewage inlet port.

[0027] In one embodiment, the sewage tank further comprises:

[0028] A spray assembly, the spray assembly comprises a liquid inlet channel and a spray outlet, and the spray outlet is located at the upper part of the second part.

[0029] In a second aspect, the present application provides a cleaning system, comprising:

[0030] A cleaning device, comprising the sewage tank described in any one of the embodiments of the first aspect above;

[0031] Base station, including sewage collection outlet;

[0032] Wherein, when the cleaning device is docked with the base station, the sewage outlet of the sewage tank is docked with the sewage collection outlet, and when the base station is under negative pressure, the sewage in the sewage tank enters the base station through the sewage outlet and the sewage collection outlet.

[0033] In one embodiment, the cleaning device further comprises:

[0034] Suction device;

[0035] The air duct switching structure has a first connected state and a second connected state;

[0036] Wherein, in the first connected state, the air duct switching structure connects the suction device and the sewage tank, so that the sewage tank is under negative pressure, and external sewage enters the sewage tank under the action of negative pressure;

[0037] In the second connected state, the air duct switching structure connects the suction device and the base station, so that the base station is under negative pressure, and the sewage in the sewage tank enters the base station through the sewage outlet and the sewage collection outlet.

[0038] In one of the embodiments, the cleaning device has a first working state when cleaning the surface to be cleaned;

[0039] In the first working state, the angle between the body of the cleaning device and the ground is smaller than a preset angle, and the second cavity is farther away from the surface to be cleaned than the first cavity.

[0040] The above-mentioned sewage tank is provided with a diversion component, which includes a partition, a sewage inlet, a circulation port and a first channel section of the sewage extraction channel. The partition divides the body of the sewage tank into a first chamber and a second chamber. The sewage flowing in from the sewage inlet enters the first chamber and enters the second chamber through the circulation port, so that the sewage tank can meet the use requirements of special scenes. For example, in the flat lying scene of the cleaning equipment, after the sewage in the first chamber enters the second chamber, it can prevent the sewage from entering the main blower; in addition, the sewage in the second chamber can enter the sewage extraction channel through the circulation port, so that the sewage tank can meet the automatic sewage discharge requirements. By providing a sewage tank that meets multiple needs, it can support the multifunctional setting of the cleaning system, making the function of the cleaning system more complete.

[0041] The cleaning system is provided with a suction device and an air duct switching structure on the cleaning equipment. Under the action of the air duct switching structure, the suction device of the cleaning equipment can not only make the sewage tank of the cleaning equipment meet the sewage suction demand and suck the external sewage into the sewage tank, but also make the base station meet the sewage discharge demand and suck the sewage in the sewage tank to the base station. That is, the single suction device on the cleaning equipment can meet the two needs of sewage suction and sewage discharge, making the structure of the cleaning system simpler, the cost lower, and the assembly and maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 is a schematic diagram of a cleaning system in one embodiment;

[0044] Figure 2 is a schematic diagram of a sewage tank at a viewing angle in one embodiment;

[0045] Figure 3 is a schematic diagram of a sewage tank from another perspective in one embodiment;

[0046] Figure 4 It is a structural schematic diagram of a part of a box cover and a flow diversion component in one embodiment;

[0047] Figure 5 It is a structural schematic diagram of a part of a box cover and a flow diversion component in another embodiment;

[0048] Figure 6 A schematic diagram of a water flow path in a sewage discharge mode in one embodiment;

[0049] Figure 7A schematic diagram of disassembling a flow diversion component and a filter element in one embodiment;

[0050] Figure 8 It is a structural schematic diagram of a part of a box cover and a flow diversion component in another embodiment;

[0051] Fig. 9 is a schematic diagram of a filter element in one embodiment;

[0052] Fig.10 A schematic diagram of a cleaning system in a dirt suction mode provided with an air duct switching structure in one embodiment;

[0053] Fig.11 It is a schematic diagram of a cleaning system in a sewage discharge mode provided with an air duct switching structure in one embodiment.

[0054] Description of reference numerals: 10, cleaning device; 110, handle; 120, body; 130, floor brush assembly; 140, clean water tank; 150, sewage tank; 151, tank cover; 152, tank body; 153, diversion assembly; 1531, partition; 1532, sewage inlet; 1533, flow outlet; 1534, first channel section; 1535, second channel section; 1536, third channel section; 1537, diversion channel; 1538. First air flow channel; 1539. Second air flow channel; 1540. Support plate; 1541. First filter element; 1542. Second filter element; 1543. Cover body; 1544. Lock structure; 1545. Abutment member; 1546. Spray water outlet; 154. Drain outlet; 155. Handle; 156. Spray water inlet; 160. Power assembly; 170. Suction device; 180. Air duct switching structure. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In the present application, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or the like, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0062] Example 1

[0063] This embodiment provides a sewage tank for use in cleaning equipment. The cleaning equipment may be a passive floor cleaning equipment (such as a floor scrubber), a vacuum cleaner, an automatic floor cleaning equipment (such as a floor sweeper), a window cleaning machine, etc. For example, a floor scrubber, Figure 1 As shown, the cleaning device 10 includes a handle 110, a body 120, a floor brush assembly 130 pivotally connected to the body 110, etc. The body 110 may be provided with, but not limited to, a clean water tank 140, a sewage tank 150, a power assembly 160, etc. Among them, the floor brush assembly 130 may be provided with a floor brush housing, a cleaning member, a floor brush motor, a water spray assembly, etc., wherein the cleaning member is used to clean the surface to be cleaned (such as the floor, carpet, window, etc.), such as a rag turntable, a mopping roller brush, and a sweeping side brush. The power assembly 160 may include a power handle, a power housing, etc., and the power housing may be provided with a battery pack, a suction device 170, a muffler structure, a heat dissipation structure, a shock absorbing structure, and other structures. Among them, the suction device 170 may use a fan.

[0064] In one embodiment, Figures 2 to 8As shown, the sewage tank 150 includes a tank cover 151, a tank body 152, a diversion component 153 and a sewage outlet 154. The suction device 170 is located above the sewage tank 150. When the suction device 170 is working, the gas in the sewage tank 150 enters the suction device 170, causing negative pressure in the sewage tank 150. The side where the sewage outlet 154 is located is the rear side, and the side opposite to the side where the sewage outlet 154 is located is the front side. The side where the tank cover 151 is located is the upper side, and the side where the bottom of the sewage tank 150 is located is the lower side. The sewage outlet 154 enables the cleaning device 10 to have a sewage discharge mode. In the sewage discharge mode, the sewage in the sewage tank 150 can be discharged to the outside of the sewage tank 150, such as to the base station 20 adapted for the cleaning device 10. Among them, the sewage outlet 154 can be set at the upper part, middle part, bottom part, etc. of the sewage tank 150. The box cover 151 and the box body 152 can be detachably connected to facilitate the user to manually clean the sewage tank 150; or they can be fixedly connected.

[0065] The flow dividing assembly 153 is installed at the lower part of the box cover 151. The flow dividing assembly 153 and the box cover 151 can be fixedly connected or detachably connected. When the box cover 151 is installed on the box body 152, the flow dividing assembly 153 is located inside the box body 152. Figure 4 and Figure 5 As shown, the flow dividing assembly 153 has a first part and a second part, and a partition 1531 is formed between the first part and the second part. The partition 1531 is in sealing contact with the inner wall of the box body 152, dividing the box body 152 into a first chamber and a second chamber.

[0066] The first part of the diverter assembly 153 is located in the first cavity, including a sewage inlet 1532, which can be arranged side by side with the sewage extraction channel. The cleaning device 10 is provided with a sewage inlet channel, which can be arranged in the sewage tank 150 or adjacent to the sewage tank 150. One end of the sewage inlet channel is connected to the sewage suction port of the floor brush assembly 130, and the other end is connected to the sewage inlet 1532, so that the cleaning device 10 can have a sewage suction mode. In the sewage suction mode, the sewage tank 150 has a negative pressure, and the sewage flows into the first cavity of the sewage tank 150 through the sewage inlet channel and the sewage inlet under the action of the negative pressure.

[0067] The second part of the diverter assembly 153 is located in the second chamber of the sewage tank 150, and includes a circulation port 1533 and a first channel section 1534 of the sewage extraction channel. The first chamber and the second chamber are connected through the circulation port 1533. After the sewage enters the first chamber, it enters the second chamber through the circulation port 1533. The first channel section 1534 can be the starting section of the sewage extraction channel. One end of the sewage extraction channel is connected to the circulation port 1533 through the first channel section 1534, and the other end is connected to the sewage outlet 154 on the box body 152. When the cleaning device 10 is in the sewage discharge mode, the sewage in the second chamber enters the first channel section 1534 through the circulation port 1533, and then is discharged from the sewage outlet 154 to the outside of the sewage tank 150.

[0068] Furthermore, if Figure 6 As shown, the first part also includes a second channel section 1535 of the sewage extraction channel, and a third channel section 1536 is also provided in the box cover 151. The sewage in the second cavity can enter the first channel section 1534, the second channel section 1535 and the third channel section 1536 in sequence through the circulation port 1533, and flow out through the sewage outlet 154. Among them, the first channel section 1534, the second channel section 1535, and the third channel section 1536 can be integrally formed or separately provided, and the adjacent two can be sealed and butted.

[0069] Optionally, the first chamber of the sewage tank 150 is disposed close to the opening of the tank cover 151, and the second chamber is disposed away from the opening of the tank cover 151, and a closed-loop sealing ring is formed between the partition 1531 and the inner wall of the tank body 152. Under the action of the sealing ring, the sewage stored in the second chamber will not pass through the tank cover 151 to reach the suction device 170, thereby preventing the suction device 170 from malfunctioning due to leakage and improving the service life of the suction device 170.

[0070] In one embodiment, Figure 7 As shown, the diversion component 153 also includes a guide channel 1537, which includes a first guide channel located in the first part and a second guide channel located in the second part (not shown in the figure). The first guide channel and the second guide channel are connected, and the circulation port 1533 is arranged close to the second guide channel. The sewage flowing into the sewage inlet 1532 enters the circulation port 1533 under the guidance of the guide channel 1537.

[0071] In one embodiment, the circulation port 1533 is provided in the bottom of the second part, close to the position of the first part. Optionally, the circulation port 1533 is located in the bottom of the second part, at a position where the extension line of the first part in the vertical direction intersects. In one example, the circulation port 1533 is located on the bottom rear edge of the second guide channel. With such a setting, on the one hand, the sewage in the first cavity can reach the circulation port 1533 in a straight path, shortening the sewage flow path, and on the other hand, the sewage in the second cavity can directly enter the sewage extraction pipe through the circulation port 1533, speeding up the sewage discharge efficiency. Optionally, the circulation port 1533 can be set to any shape such as a rectangle, a circle, an ellipse, etc.

[0072] In one embodiment, Figure 8As shown, the flow splitter assembly 153 includes: a first airflow channel 1538 and a second airflow channel 1539. The first airflow channel 1538 is connected to the suction device 170 of the cleaning device 10 and the first cavity, and the second airflow channel 1539 is connected to the suction device 170 and the second cavity. When the suction device 170 is working, the suction force acts on the first cavity through the first airflow channel 1538, causing negative pressure in the first cavity, and acts on the second cavity through the second airflow channel 1539, causing negative pressure in the second cavity.

[0073] Optionally, the cross-sectional area of ​​the second airflow channel 1539 is greater than the cross-sectional area of ​​the first airflow channel 1538, so that the negative pressure generated in the second cavity per unit time is greater than the negative pressure generated in the first cavity, and the sewage in the first cavity flows into the second cavity through the flow port 1533 under the drive of the negative pressure difference, thereby further reducing the retention rate of the sewage in the first cavity. In addition, the negative pressure difference allows the sewage to remain stably in the second cavity, and can also prevent the suction device 170 from malfunctioning due to leakage, thereby increasing the service life of the suction device 170.

[0074] In one embodiment, a support plate 1540 is provided at a portion of the diverter assembly 153 that is opposite to the front wall of the sewage tank 150. The two sides of the support plate 1540 are connected to the partition 1531, and the two sides are in sealed contact with the inner wall of the sewage tank 150 to prevent airflow leakage. The second airflow channel 1539 can be arranged on the support plate 1540 in a vertical, curved, labyrinth or other structure.

[0075] Optionally, the support plate 1540 is located above the first channel section 1534 of the sewage extraction pipe, and the support plate 1540, the first channel section 1534 and the flow port 1533 are arranged in sequence from top to bottom.

[0076] In one embodiment, the diversion component 153 also includes a filter element. In the water flow path of the sewage suction mode, the filter element is located upstream of the circulation port 1533, and is used to separate the solid and liquid of the sewage flowing into the sewage inlet 1532 to prevent the circulation port 1533 from being blocked by solid waste, causing abnormal operation of the cleaning equipment 10.

[0077] In this embodiment, the filter element includes a first filter element 1541 and a second filter element 1542, wherein the first filter element is located in the first guide channel, and the second filter element 1542 is located in the second guide channel. The first filter element 1541 is arranged around the sewage inlet 1532, and has a first filter part (not shown in the figure) located at the rear side, and a plurality of filter holes are provided on the first filter part. The sewage entering through the sewage inlet 1532 is sprayed to the first filter part under the action of suction force, and then flows into the circulation port 1533 under the action of gravity and negative pressure difference, and enters the second cavity. The second filter element 1542 is used to perform solid-liquid separation on the sewage entering the second guide channel.

[0078] Furthermore, filter holes may also be provided on the left and right sides of the first filter element 1541. By providing filter holes in multiple positions, the solid-liquid separation rate of sewage can be improved, solid waste can be dispersed, solid waste accumulation can be avoided, and the possibility of blockage of the flow port 1533 can be reduced. In addition, by providing filter holes in multiple positions, it is also possible to prevent excessive solid waste from blocking the filter holes, resulting in loss of suction force at the suction port, and affecting the suction effect.

[0079] Furthermore, in the front-to-back direction, the gap between the first filter element 1541 and the rear wall of the second guide channel is smaller than the gap between the second filter element 1542 and the rear wall of the second guide channel. In this way, when the cleaning device 10 is sucking sewage, the sewage filtered by the first filter element 1541 can better flow into the second filter element 1542 and the second guide channel under the action of gravity, and then flow out from the flow port 1533 to the second cavity driven by the negative pressure difference.

[0080] Of course, in the front-to-back direction, the gap between the first filter element 1541 and the rear wall of the second guide channel can also be greater than or equal to the gap between the second filter element 1542 and the rear wall of the second guide channel. Correspondingly, the distance between the first filter element 1541 and the inner wall of the first cavity of the sewage tank 150 is also increased. Such a structure makes it difficult for sewage to be sprayed onto the inner wall of the first cavity of the sewage tank 150, which helps to ensure the cleanliness of the inner wall of the sewage tank 150.

[0081] Furthermore, when the cleaning device 10 is sucking sewage, it is inevitable that some sewage cannot pass through the first filter element 1541 and then enter the circulation port 1533, but directly flows into the second guide channel. By setting the second filter element 1542, the second filter element 1542 can separate the solid and liquid of this part of the sewage, which can further ensure the solid-liquid separation effect of the sewage.

[0082] Furthermore, the filter element and the diversion assembly 130 can be enclosed to form a storage space for retaining solid waste.

[0083] Furthermore, a guide member (not shown in the figure) is provided at a position of the filter element close to the sewage inlet 1532 , and the guide member is used to guide the sewage to flow to the first filter element 1541 .

[0084] In one embodiment, the second part of the flow diversion assembly 153 further includes an openable cover 1543, which forms at least a portion of the rear wall of the second flow guide channel. The flow port 1533 can be arranged at the bottom of the cover 1543. A lock structure 1544 is arranged between the second part and the cover 1543, and the lock structure 1544 has an unlocked state and an unlocked state, so that the cover 1543 has an open state and a closed state accordingly. When the flow port 1533 is blocked, the cover 1543 can be opened by operating the lock structure 1544 to clean the flow port 1533, which is simple to operate.

[0085] In one embodiment, an abutment 1545 is provided on one side of the cover 1543 facing the inner wall of the box body 152. When the diversion assembly 153 is installed in the sewage tank 150, there is an extrusion force between the abutment 1545 and the inner wall of the box body 152. When the locking structure 1544 is in an unlocked state, the cover 1543 is driven into a closed state by the extrusion force, thereby preventing airflow and liquid leakage.

[0086] Furthermore, the number of the abutment members 1545 may be one or more, and the outer contour thereof may be in an arc shape, a triangle shape, or the like.

[0087] Furthermore, the abutment member 1545 may be fixedly mounted on the cover body 1543 ; or may be movably mounted on the cover body 1543 , such as by using a rotatable roller, a spring, or the like.

[0088] In one embodiment, the filter element is detachably disposed in the flow guide channel 1537. Fig. 9 As shown, the first filter element 1541 and the second filter element 1542 are pivotally connected; the first filter element 1541 rotates in a direction away from the diverter assembly 153 under the external force in the first direction, and drives the second filter element 1542 to separate from the diverter assembly 153 under the external force in the second direction. The first direction can be backward, and the second direction can be upward. In this way, the first filter element 1541 and the second filter element 1542 can be quickly disassembled as a whole, and the operation method is simple, which is convenient for storing and cleaning the first filter element 1541 and the second filter element 1542.

[0089] In one embodiment, the sewage tank 150 further includes: a spray assembly, which includes a spray water injection port 156, a liquid inlet channel and a spray water outlet 1546. One end of the liquid inlet channel is connected to an external water source through the spray water injection port 156, and the other end is connected to the spray water outlet 1546. The external water source can be a clean water tank 140, a water storage tank on the base station 20, etc. The spray water outlet 1546 is located at the upper part of the second part, so that water can be sprayed downward to clean the inner wall of the second cavity. Correspondingly, a spray assembly can also be provided on the first part to clean the inner wall of the first cavity, which will not be described in detail here.

[0090] Furthermore, the number of the spray water outlets may be one or more, and water may be discharged in a rotating spraying manner to increase the degree of contact between water and the inner wall of the second cavity.

[0091] Furthermore, a spray outlet can also be set at the bottom of the second chamber of the sewage tank to spray water from bottom to top toward the inner wall of the sewage tank, so that after the water is sprayed to the inner wall, it flows down along the inner wall by gravity, thereby achieving secondary cleaning of the inner wall of the sewage tank.

[0092] In one embodiment, the outer wall of the box body 152 may also be provided with a handle 155. The handle 155 may be pivotally arranged on the box body 152 through a torsion spring, a hinge, etc., and has an unfolded state and a folded state. The handle 155 is in an open state when in use, so that the user can take the sewage tank 150 by the handle, and may be in a folded state when not in use, thereby reducing the space occupied by the cleaning device 10 and reducing the probability of collision with the outside world.

[0093] In one embodiment, a liquid full detection mechanism may be provided in the sewage tank 150 , and when the liquid full detection mechanism detects that the sewage tank 150 is full of liquid, a prompt message may be issued.

[0094] Example 2

[0095] This embodiment provides a cleaning system, which can be a passive floor cleaning system (such as a floor scrubber), a vacuum cleaner, an automatic floor cleaning system (such as a floor sweeper), a window cleaning machine, etc. Figure 1 As shown, taking a floor scrubber as an example, the cleaning system includes a cleaning device 10 and a base station 20. The cleaning device 10 includes a handle 110, a body 120, a floor brush assembly 130 pivotally connected to the body 120, etc. The body 110 may be provided with, but not limited to, a clean water tank 140, a sewage tank 150, and a power assembly 160. Among them, the floor brush assembly 130 may be provided with a floor brush housing, a cleaning member, a floor brush motor, a water spray assembly, etc., wherein the cleaning member is used to clean the surface to be cleaned (such as the floor, carpet, window, etc.), such as a rag turntable, a mopping roller brush, and a sweeping side brush. The power assembly 160 may include structures such as a power handle and a power housing, and a battery pack, a suction device 170, a muffler structure, a heat dissipation structure, a shock absorbing structure, etc. may be provided in the power housing. Among them, the suction device 170 may use a fan. The sewage tank 150 in this embodiment is the sewage tank 150 described in any embodiment of Embodiment 1, and the sewage outlet 154 is arranged at the upper rear portion of the sewage tank 150, and a sewage cover (not shown in the figure) is pivotally connected to the sewage outlet 154. In one example, the sewage outlet 154 is arranged on the tank cover 151.

[0096] With the default moving direction of the cleaning device 10 as the front side and the side facing the user as the rear side, the power assembly 160 and the sewage tank 150 are located on the same side of the body 110, preferably on the rear side of the body 120, and the clean water tank 140 is located on the front side of the body 120. In the vertical direction, the power assembly 160 is located above the sewage tank 150. The first cavity of the sewage tank 150 is closer to the power assembly 160 than the second cavity.

[0097] The base station 20 may be provided with a tray 220 and a base station body 210 extending in the height direction. The base station 20 may be provided with a base station water replenishment component, a base station sewage discharge component, a charging component, etc. The base station 20 is also provided with a sewage collection port. The base station sewage discharge component may include a sewage collection box and a sewage collection port. When the cleaning device 10 is docked with the base station 20, the sewage discharge cover at the sewage discharge port 154 is opened, and the sewage discharge port 154 is docked with the sewage collection port. When the cleaning device 10 discharges sewage, the sewage enters the sewage collection box through the sewage discharge port 154 and the sewage collection port.

[0098] Optionally, the sewage collection box can be connected to an automatic drainage structure. When the sewage enters the sewage collection box, the automatic drainage structure is turned on and the sewage is automatically discharged into the municipal pipeline, thereby realizing fully automated sewage treatment without the need for users to manually handle the sewage. Of course, the base station sewage discharge component may also not include a sewage collection box, but directly connect the sewage collection port to the automatic drainage structure, so that the sewage is discharged into the municipal pipeline in real time through the sewage collection port and the automatic drainage structure.

[0099] In one embodiment, the cleaning device 10 has a first working state and a second working state when cleaning the surface to be cleaned. In the first working state, the angle between the body 120 of the cleaning device 10 and the ground is less than a preset angle, which can be a smaller angle such as 5°, 10°, etc. In the second working state, the angle between the body 110 of the cleaning device 10 and the ground is greater than or equal to the preset angle. In the first working state, the second cavity is away from the surface to be cleaned relative to the first cavity. The sewage is stored in the second cavity, and under the action of the negative pressure difference and the partition 1531, the sewage will not enter the suction device 170, thereby preventing the liquid from flowing to the suction device 170, causing the suction device 170 to malfunction.

[0100] In one embodiment, Fig.10 and 11As shown, the cleaning device 10 also includes an air duct switching structure 180 and a first air duct opening provided on the housing of the cleaning device 10. The air duct switching structure 180 can be located between the suction device 170 and the sewage tank 150. With such a position distribution, the fluid path can be shortened and the overall structure of the cleaning device 10 can be simplified. The air duct switching structure 180 has a first air inlet, a second air inlet, an air outlet and a switching member, wherein the first air inlet is docked with the sewage tank 150, the second air inlet is docked with the first air duct opening, and the air outlet is docked with the air inlet end of the suction device 170. The switching member is used to change the connection state between the first air inlet and the air outlet, and between the second air inlet and the air outlet. For example, the switching member can be a solenoid valve, a gear structure, etc. A second air duct opening is provided on the housing of the base station 20, and the second air duct opening is connected to the base station sewage discharge assembly. When the cleaning device 10 is docked with the base station 20, the first air duct opening and the second air duct opening are docked.

[0101] The air duct switching structure 180 has a first connection state and a second connection state. Fig.10 As shown, when the cleaning device 10 performs the sewage suction mode, the air duct switching structure 180 presents a first connection state, the switching member conducts the flow path between the first air inlet and the air outlet, and blocks the flow path between the second air inlet and the air outlet, so that fluid communication is formed between the suction device 170 and the sewage tank 150. The suction force of the suction device 170 acts on the sewage tank 150, and the sewage tank 150 is negatively pressurized, and the sewage is sucked into the sewage tank 150.

[0102] like Fig.11 As shown, when the cleaning device 10 executes the sewage discharge mode, the air duct switching structure 180 presents a second connection state, the switching member conducts the flow path between the second air inlet and the air outlet, and at the same time, blocks the flow path between the first air inlet and the air outlet, so that the suction device 170 and the base station 20 form a fluid connection through the first air duct opening and the second air duct opening. The suction force of the suction device 170 acts on the sewage discharge assembly of the base station, causing the sewage discharge assembly of the base station to be negatively pressurized, and the sewage in the sewage tank 150 enters the sewage discharge assembly of the base station through the sewage discharge port 154 and the sewage collection port.

[0103] In one embodiment, when the cleaning device 10 is docked with the base station 20, the sewage tank 150 can also be self-cleaned. In a specific implementation, during self-cleaning, the air duct switching structure 180 switches between the first connected state and the second connected state, and the switching mode can be periodic and regular switching or irregular switching. When the first connected state is presented, the cleaning device 10 enters the sewage suction mode, and the water spraying structure (not shown in the figure) of the floor brush assembly 130 sprays water. Under the action of the suction force, the water is sucked into the sewage tank 150 and sprayed to the inner wall of the first cavity through the first filter element 1541, and the inner wall of the first cavity is self-cleaned. When the air duct switching structure 180 switches from the first connected state to the second connected state, the water forms a tide-like shape to self-clean the accommodation space between the filter element and the diverter assembly 130, and the inner wall of the diverter assembly 130. At the same time, the cleaning device 10 enters the sewage discharge mode, and the water is sucked to the base station 20 under the negative pressure of the base station 20, thereby realizing the self-cleaning of the filter element and the diverter assembly 130.

[0104] In one embodiment, the air duct switching structure 180 may also include a position sensor. When the cleaning device 10 executes the dirt suction mode, if the controller on the cleaning device 10 determines that the air duct switching structure 180 is not currently in the first connectivity state based on the detection signal of the position sensor, the switching component is controlled to operate so that the air duct switching structure 180 is in the first connectivity state.

[0105] Accordingly, when the cleaning device 10 executes the sewage discharge mode, if the controller determines that the air duct switching structure 180 is not currently in the second connection state based on the detection signal of the position sensor, the switching member is controlled to work so that the air duct switching structure 180 is in the second connection state. In this embodiment, by providing a position sensor, the air duct switching structure 180 can be fully automatically controlled based on the circuit system of the position sensor, the controller, etc., thereby improving the intelligence of the cleaning device 10.

[0106] In the above cleaning system, an air duct switching structure 180 is provided on the cleaning device 10. Under the action of the air duct switching structure 180, the suction device 170 of the cleaning device 10 can not only enable the cleaning device 10 to meet the demand of suctioning sewage and suck the external sewage into the sewage tank 150, but also enable the base station 20 to meet the demand of sewage discharge and suck the sewage in the sewage tank 150 to the base station 20. That is, the single suction device 170 on the cleaning device 10 can meet the two demands of suctioning and sewage discharge, making the structure of the cleaning system simpler, the cost lower, and the assembly and maintenance more convenient.

[0107] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A sewage tank, characterized in that: include: Box cover and box body; A flow dividing assembly connected to the box cover, comprising a first part and a second part, wherein a partition is formed between the first part and the second part, and the partition is in sealing contact with the box body to divide the box body into a first chamber and a second chamber; Wherein, the first part is located in the first cavity and includes a sewage inlet; the second part is located in the second cavity and includes a circulation port and a first channel section of the sewage extraction channel; External sewage can flow into the first cavity through the sewage inlet and enter the second cavity through the circulation port. The sewage in the second cavity can enter the first channel section through the circulation port.

2. The sewage tank according to claim 1, characterized in that: The flow port is arranged in the bottom of the second part, close to the first part.

3. The sewage tank according to claim 1, characterized in that: The diversion component comprises: a first air flow channel, communicating with the first cavity; a second air flow channel, communicating with the second cavity; When the sewage tank is under negative pressure, the second air flow channel makes the negative pressure in the second chamber greater than the negative pressure in the first chamber, driving the sewage in the first chamber into the second chamber through the flow port.

4. The sewage tank according to claim 1, characterized in that: The diversion component comprises: The filter element comprises a first filter element and a second filter element, wherein the first filter element is located in the first cavity and the second filter element is located in the second cavity, and is used for filtering sewage flowing into the sewage inlet.

5. The sewage tank according to claim 4, characterized in that: The second part includes an openable cover, and a fluid channel is provided between the cover and the second filter element; The sewage filtered by the first filter element reaches the flow port through the fluid channel and enters the second chamber.

6. The sewage tank according to claim 5, characterized in that: A lock structure is provided between the second part and the cover body, and the lock structure has an unlocking state and an unlocking state, so that the cover body has an opening state and a closing state accordingly.

7. The sewage tank according to claim 6, characterized in that: The cover body is provided with an abutment; when the diversion assembly is installed in the sewage tank, there is an extrusion force between the abutment and the inner wall of the box body, which is used to drive the cover body to a closed state through the extrusion force when the locking structure is in an unlocked state.

8. The sewage tank according to claim 4, characterized in that: The first filter element and the second filter element are pivotally connected; The first filter element rotates in a direction away from the diverter assembly under the driving force of an external force in a first direction, and drives the second filter element to separate from the diverter assembly under the driving force of an external force in a second direction.

9. The sewage tank according to claim 4, characterized in that: The filter element comprises a flow guide element, and the flow guide element is arranged close to the sewage inlet.

10. The sewage tank according to claim 1, characterized in that: The first part also includes a second channel section of the sewage extraction channel, and the box cover includes a sewage outlet and a third channel section of the sewage extraction channel; The sewage in the second chamber can enter the first channel section, the second channel section and the third channel section in sequence through the circulation port, and flow out through the sewage outlet.

11. The sewage tank according to claim 1, characterized in that: The sewage tank also includes: The sewage inlet channel is connected to the sewage inlet port, so that external sewage enters the sewage tank through the sewage inlet channel and the sewage inlet port.

12. The sewage tank according to claim 1, characterized in that: The sewage tank also includes: A spray assembly, the spray assembly comprises a liquid inlet channel and a spray outlet, and the spray outlet is located at the upper part of the second part.

13. A cleaning system, characterized in that: include: A cleaning device comprising a sewage tank as claimed in any one of claims 1 to 12; Base station, including sewage collection outlet; Wherein, when the cleaning device is docked with the base station, the sewage outlet of the sewage tank is docked with the sewage collection outlet, and the sewage in the sewage tank enters the base station through the sewage outlet and the sewage collection outlet.

14. The cleaning system according to claim 13, characterized in that The cleaning device further comprises: Suction device; The air duct switching structure has a first connected state and a second connected state; Wherein, in the first connected state, the air duct switching structure connects the suction device and the sewage tank, so that the sewage tank is under negative pressure, and external sewage enters the sewage tank under the action of negative pressure; In the second connected state, the air duct switching structure connects the suction device and the base station, so that the base station is under negative pressure, and the sewage in the sewage tank enters the base station through the sewage outlet and the sewage collection outlet.

15. The cleaning system according to claim 13, characterized in that The cleaning device has a first working state when cleaning the surface to be cleaned; In the first working state, the angle between the body of the cleaning device and the ground is smaller than a preset angle, and the second cavity is farther away from the surface to be cleaned than the first cavity.

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