Cleaning device

Abstract

The invention relates to cleaning equipment which comprises a machine body, a suction motor and a sewage tank assembly, the sewage tank assembly comprises a sewage tank, an upper cover assembly and a space, and the sewage tank comprises a containing cavity, a sewage inlet and a tank opening; the upper cover assembly is detachably arranged at the box opening, and the upper cover assembly is provided with an air port communicated with the containing cavity and the suction motor; the support is connected with the upper cover assembly. The bracket comprises a first separator and a second separator, and the first separator divides the accommodating cavity into a first space and a second space; the second separator divides the first space into a dirt inlet space and an air suction space; when the cleaning equipment is in a lying state, the second partition piece can guide sewage in the sewage inlet space to flow out of the first space, and the first partition piece can prevent the sewage entering the second space from flowing back to the air suction space. And when the cleaning equipment is in a lying state, the first separator can prevent the sewage in the second space from flowing back to the air suction space, so that the risk that the sewage enters the suction motor is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a cleaning device. BACKGROUND

[0002] With the increasing refinement and diversification of household cleaning needs, high-efficiency cleaning devices such as scrubbers, electric mops, and scrubbing-mopping integrated machines that combine suction and mopping have gradually become important tools for modern families.

[0003] Taking a scrubber as an example, in order to achieve deep cleaning of low spaces such as bed bottoms and sofa bottoms, flat cleaning technology has emerged and become a new trend in the industry. This technology allows the scrubber to work in a near-horizontal state, significantly expanding the cleaning coverage of the device.

[0004] However, when the scrubber is in a flat position, the internal liquid flow state has fundamentally changed. A sewage tank designed reasonably in a traditional upright state may cause the internal accumulated liquid to shift position due to gravity when the machine body is flat, thereby potentially causing liquid backflow into the suction motor. If the liquid containing dirt particles enters the core working area of the suction motor, it will affect the performance of the motor and even cause problems such as circuit short circuit, which will seriously threaten the reliability and service life of the motor in the long run. SUMMARY

[0005] In view of the above problems, the embodiments of the present application provide a cleaning device that can improve the risk of sewage backflow into the suction motor in the flat state of the cleaning device.

[0006] To achieve the above purpose, the embodiments of the present application provide the following technical solutions: The embodiments of the present application provide a cleaning device, which comprises a machine body, a suction motor and a sewage tank assembly, the sewage tank assembly and the suction motor are arranged in the machine body, wherein the sewage tank assembly comprises: a sewage tank comprising a containing cavity, an inlet and a tank opening communicating with the containing cavity; an upper cover assembly detachably arranged at the tank opening, the upper cover assembly having an air port communicating the containing cavity and the suction motor; a support connected with the upper cover assembly and capable of being separated from the sewage tank synchronously with the upper cover assembly; the support comprises a first partition and a second partition, the first partition separates the containing cavity into a first space and a second space communicating with the first space; the second partition separates the first space into an inlet space communicating with the inlet and an air suction space communicating with the air port; When the cleaning equipment is in a flat position, the second partition can guide the sewage in the sewage inlet space to flow out of the first space and at least partially enter the second space, while the first partition can prevent the sewage entering the second space from flowing back into the air intake space.

[0007] Many existing cleaning devices, such as floor scrubbers, are designed for normal and horizontal operation. In the horizontal position, wastewater in the tank can easily flow back to the power source (such as the suction motor). To address this, many existing wastewater tanks employ a labyrinthine structure with numerous baffles to prevent backflow. However, this often results in many hard-to-reach areas within the tank. Some existing technologies even place these baffles on the inner wall of the tank, making thorough cleaning extremely difficult for users.

[0008] During the cleaning process of low-ceilinged spaces with the cleaning equipment lying flat, the mixed fluid enters the wastewater inlet through the wastewater inlet. Near the wastewater inlet, the wastewater is confined within the wastewater inlet due to the obstruction and diversion effect of the second separator. Subsequently, the wastewater flows out of the wastewater inlet and is separated into gaseous and non-gase components (referring to the mixture of wastewater and solid waste) downstream of the second separator. The lighter gaseous component enters the suction motor through the air inlet of the suction space, while the heavier wastewater and solid waste flow out of the first space. Although both the wastewater inlet and the air inlet are located in the first space, they are separated by the second separator, which reduces the risk of wastewater entering the suction motor through the air inlet, even if they are located close to each other.

[0009] Because the first and second spaces are connected, wastewater flowing out of the first space can flow into the second space. When the cleaning equipment is in a horizontal position, the first partition can prevent wastewater from flowing back from the second space into the suction space, further reducing the risk of wastewater entering the suction motor.

[0010] When the wastewater tank needs cleaning, such as when the wastewater level in the containment cavity reaches the set maximum level, the wastewater tank assembly can be removed from the machine body first, and then the top cover assembly can be removed from the wastewater tank. Since the bracket is connected to the top cover assembly, the bracket can also be removed from the containment cavity simultaneously when removing the top cover assembly, allowing for separate cleaning of the first and second partitions. The waste inside the wastewater tank can be emptied from the tank opening, meaning that the first and second partitions do not increase the difficulty of cleaning the wastewater tank.

[0011] As can be seen from the above, this case has two sets of partitions, and there is no maze-like structure between them. There is no maze-like surrounding structure between them. That is to say, there are no dead corners for cleaning in the partitions in this case. At the same time, there are no baffles inside the sewage tank itself. This forms a system that can meet the needs of the machine lying flat and can also form a minimalist sewage tank without a particularly complicated structure, making cleaning very convenient.

[0012] Optionally, the receiving cavity further includes a transition space connecting the first space and the second space, and the second partition can guide the sewage in the sewage inlet space to the transition space; When the cleaning device is in an upright position, the transition space is located below the first space and the second space; when the cleaning device is in a lying position, the second space is located below the first space.

[0013] During routine cleaning, wastewater flowing down from the inlet space enters the transition space under gravity. Typically, the maximum water level is set to not exceed the capacity of the transition space, meaning that under normal cleaning conditions, wastewater will generally not enter the second space. Furthermore, since the air vent is located at the top of the wastewater tank, there is virtually no issue of liquid entering the air vent. However, in a horizontal cleaning scenario, wastewater flows towards the top cover assembly, increasing the risk of wastewater entering the air vent. Wastewater may also enter the second space from the transition space, but thanks to the first partition, wastewater in the second space will generally not flow towards the air vent, reducing the risk of wastewater entering the suction motor through the air vent when the tank is horizontal.

[0014] Optionally, when the cleaning equipment is in an upright position, the first partition extends vertically, the bottom of the first partition is located above the bottom wall of the sewage tank, and the bottom position of the first partition is lower than the bottom position of the second partition.

[0015] This layout allows for a more rational division of the containment chamber space, with the space below the first partition forming a transition space. Taking the cleaning equipment in an upright position as an example: because the bottom of the first partition is lower than the second partition, the wastewater inlet space is connected to the air intake space. After the mixed fluid entering the containment chamber undergoes gas-liquid and gas-solid separation below the first partition, the gas can flow upwards towards the air inlet, while the wastewater and solid waste continue to fall.

[0016] Optionally, the wastewater tank includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. When the cleaning device is in a flat position, the first sidewall faces the surface to be cleaned, the second sidewall and the first sidewall are located on opposite sides of the first partition, the third sidewall and the fourth sidewall are arranged opposite to each other and are respectively connected to the first sidewall and the second sidewall. The first partition abuts against the third sidewall and the fourth sidewall respectively. The first sidewall, the first partition, and a portion of the third sidewall and the fourth sidewall enclose a first space. The second sidewall, the first partition, and another portion of the third sidewall and the fourth sidewall enclose a second space.

[0017] This method of using the first partition and the existing sidewalls of the sewage tank to form the first and second spaces has a simple structure and can improve space utilization.

[0018] Optionally, the second partition is disposed on the first partition and is disposed at an angle to the first partition. The second partition abuts against the first sidewall, and the first partition, the second partition, and the first sidewall together enclose the sewage inlet space.

[0019] The first space forms an air intake space on the outer side of the second partition, roughly surrounding the wastewater inlet space. Thus, the air intake space and wastewater inlet space are formed by the first partition, the second partition, and part of the sidewall of the wastewater tank. This structure further improves the space utilization of the containment chamber. Furthermore, the air inlet is adjacent to the second partition, allowing it to be positioned higher when the cleaning equipment is in a horizontal position, further reducing the risk of wastewater entering the air inlet.

[0020] Optionally, at least a portion of the bottom wall of the sewage tank that is in contact with the sewage is a flexible wall. When the cleaning equipment is in a flat position, the flexible wall can reduce the surge of sewage through deformation to prevent sewage from being sucked in by the suction motor.

[0021] During the operation of the cleaning equipment while lying flat, the sewage will surge back and forth in the containment chamber and impact the bottom wall. The flexible wall will deform under the impact of the sewage to absorb the impact energy and slow down the water flow speed, thereby reducing the generation of surging waves and reducing the risk of water splashing and being sucked into the suction motor.

[0022] Optionally, the body is provided with a water tank mounting position for installing the sewage tank, and there is a gap between the flexible wall and the water tank mounting position.

[0023] The space between the gaps provides a buffer for the deformation of the flexible wall, effectively ensuring the reduction of sewage surges by the flexible wall.

[0024] Optionally, the bottom wall of the sewage tank includes a flexible wall and a rigid wall. When the cleaning equipment is in an upright state, the rigid wall is located below the flexible wall, and there is a gap between the rigid wall and the flexible wall.

[0025] The space between the flexible and rigid walls provides a buffer for the deformation of the flexible wall, while the rigid wall can directly contact the bottom of the water tank mounting location. Furthermore, the rigid wall also provides some protection for the flexible wall.

[0026] Optionally, the wastewater tank assembly further includes a deodorization component, the bottom wall of the wastewater tank is a rigid wall, the deodorization component is detachably connected to the rigid wall, and the deodorization component passes through the rigid wall into the receiving cavity.

[0027] Wastewater tanks are prone to bacterial growth and odor. The deodorizing component reduces odor and improves the user experience. The component extends from the outside of the tank through a rigid wall into the containment cavity to deodorize it. This design minimizes the risk of getting your hands dirty when disassembling the component. Furthermore, the deodorizing component can be removed separately for easy cleaning of both the tank and the component, further simplifying the tank's structure.

[0028] Optionally, the first partition has a protruding structure that protrudes into the second space, and when the cleaning device is in a flat position, the protruding structure can reduce the surge of sewage.

[0029] When the cleaning equipment is in a horizontal position, the sewage sways back and forth. The raised structure can break the integrity of the water body, increase the flow resistance, and "disperse" the large-scale, impactful waves into small-scale, lower-energy turbulence, thereby reducing the risk of sewage entering the suction motor due to the back and forth movement of the cleaning equipment.

[0030] Optionally, the wastewater tank assembly further includes a filter support, and the protruding structure is part of the filter support.

[0031] The filter holder is used to install disposable filters, which can filter hair, fibers, large particles of debris, etc., and play a preliminary filtering role in the mixed fluid entering the receiving cavity.

[0032] The filter support is located at the bottom of the second partition and extends from the first space to the second space, with the portion extending into the second space forming a raised structure. This multi-purpose design of a single component improves the utilization of space within the wastewater tank.

[0033] Optionally, the support further includes a first filter and a second filter disposed at the bottom of the first separator. Wastewater flowing out of the inlet space is filtered by the first filter and then flows to the transition space. The second filter is located between the second space and the transition space.

[0034] When the cleaning equipment is in an upright position, the first filter element is located below the first space. Both the first and second filters are used to achieve solid-liquid separation. For example, when the cleaning equipment is in a horizontal position, the mixed fluid entering through the inlet flows through the first filter element. The first filter element traps some solid waste in the first space, while sewage and some other solid waste may still pass through the filter holes of the first filter element into the transition space. As the machine body moves back and forth, the sewage and solid waste in the transition space are filtered again by the second filter element as they rush towards the second space. The second filter element traps solid waste in the transition space while allowing sewage to pass through. The second filter element performs secondary filtration based on the first filter element, reducing the amount of solid waste entering the second space and adhering to the first partition or the inner wall of the sewage tank in the second space, which is beneficial for cleaning the sewage tank assembly.

[0035] Furthermore, the second filter element also helps reduce the surge of wastewater.

[0036] Optionally, the first separator, the second separator, the first filter, and the second filter are an integral structure.

[0037] The integrated structure not only ensures reliable connections between components, but also reduces gaps at the joints of different components, making cleaning easier.

[0038] Optionally, the wastewater tank assembly further includes a wastewater inlet pipe located outside the receiving cavity and communicating with the wastewater inlet.

[0039] In related technologies, the inlet pipe is located inside the sewage tank, which not only occupies valuable space in the storage cavity for sewage, but also easily accumulates dirt at the connection between the inlet pipe and the inner wall of the sewage tank. In some cases, the distance between the inlet pipe and one side of the inner wall of the sewage tank is relatively short, and this narrow space is an area that is difficult for cleaning tools to reach, creating a blind spot and further increasing the difficulty of cleaning the sewage tank. In the embodiments of this application, see... Figure 10 By placing the sewage inlet pipe externally, the structure of the sewage tank is simplified as much as possible, reducing irregular corners and hidden dead corners inside the sewage tank, making it easier to clean the sewage tank.

[0040] Moreover, the simple internal structure of the sewage tank provides greater design freedom for the arrangement of other functional components.

[0041] Based on the foregoing description, the support can be removed from the sewage tank along with the top cover assembly. After removal, the support has virtually no enclosed space, and structures such as the first partition, the second partition, the first filter, and the second filter can be exposed, which also facilitates cleaning of the support.

[0042] Optionally, the sewage inlet pipe is detachably mounted on the machine body.

[0043] When the wastewater reaches the set maximum water level, remove the wastewater tank assembly from the machine body, leaving the inlet pipe on the machine body. When reinstalling the wastewater tank assembly, align the inlet of the wastewater tank with the outlet of the inlet pipe. The wastewater from the surface to be cleaned can then flow into the receiving cavity through the suction port at the bottom of the floor brush, the inlet at the bottom of the inlet pipe, the outlet at the top of the inlet pipe, and the inlet of the wastewater tank.

[0044] Because the inlet pipe is detachable, it can be cleaned separately after being removed from the machine body, which is simple and convenient.

[0045] Optionally, the machine body is provided with a water tank mounting position, and the sewage inlet pipe is located at the water tank mounting position, between the sewage tank and the machine body. That is, the sewage inlet pipe is roughly opposite to the first side wall of the sewage tank and located inside the sewage tank. In this way, the sewage inlet pipe is equivalent to being "clamped" between the sewage tank and the machine body, which helps to improve the reliability of the connection between the sewage pipe and the sewage inlet, and reduces or even avoids the displacement of the sewage inlet pipe due to vibration during the cleaning process, thereby affecting the sealing performance between the sewage inlet pipe and the sewage inlet.

[0046] Optionally, the inlet pipe is detachably connected to the wastewater tank.

[0047] In this way, the inlet pipe is removed from the machine body along with the sewage tank, and then removed from the sewage tank separately. In this case, a pipe mounting position for the inlet pipe needs to be set on the sewage tank.

[0048] Optionally, the side wall of the sewage tank is provided with a groove, and the sewage inlet pipe and the sewage inlet are both located in the groove.

[0049] When the inlet pipe is installed on the machine body, the groove can be used to avoid the inlet pipe.

[0050] When the inlet pipe is installed in the sewage tank, the groove serves as the installation position for the inlet pipe, which is detachably snapped into the groove. For example, when the inlet pipe is installed in the groove, the friction between its outer wall and the inner wall of the groove prevents the inlet pipe from separating from the sewage tank. When it is necessary to remove the inlet pipe, an external force greater than this friction force is applied to the inlet pipe, which can then be pulled out of the groove.

[0051] Optionally, the wastewater tank assembly further includes a liquid level detection assembly, which includes a detection probe, a connection end, and a conductive element connected to the detection probe and the connection end respectively. The conductive element can transmit the detection information of the detection probe to the controller via the connection end. The detection probe is at least partially in contact with the wastewater, and the conductive element and the connection end are both located outside the wastewater tank; The wastewater tank includes a first sidewall. When the cleaning device is in a flat position, the first sidewall faces the surface to be cleaned. The detection probe is located above the first sidewall to detect the amount of liquid in the containment cavity.

[0052] The detection probe can be used to detect the highest water level in the wastewater tank. After receiving the signal from the connection terminal, the controller determines that the water level has reached the preset maximum level and can then control the cleaning equipment to issue an early warning.

[0053] By placing the detection probe above the first side wall, it can not only meet the liquid level detection function under normal cleaning work, but also realize liquid level detection in a flat position.

[0054] Placing the conductive components and connectors external to the wastewater tank reduces the number of internal structural components, improving the effective utilization of the storage space. This allows the cleaning equipment to store more wastewater and extends the tank's continuous operating time. Furthermore, the simplified internal structure provides greater design freedom for the arrangement of other functional components, resulting in a more flexible and rational overall layout. Moreover, this external conductive component and connector design avoids the complex internal wiring and redundant structures common in existing solutions, eliminating irregular corners and hidden dead zones where dirt easily accumulates within the storage cavity. This makes cleaning and maintenance of the entire wastewater tank simpler and more thorough, preventing problems such as dirt accumulation, bacterial growth, and odor. This not only improves the product's practicality but also enhances the user experience. In addition, the external conductive component and connector design avoids circuit corrosion problems that may occur due to prolonged liquid contact, ensuring the stability of signal transmission.

[0055] Optionally, the detection probe includes a first probe and a second probe, which are located on opposite sides of the wastewater tank. When the cleaning equipment is in an upright or lying position, both the first and second probes are at the same horizontal height. This creates a dual-side-wall detection mode. The control module only issues an alert when it simultaneously receives signals from both the first and second probes. This approach improves the accuracy and reliability of the detection results.

[0056] Optionally, the connecting end is located between the first sidewall and the fuselage.

[0057] This avoids exposing the connection end to the outside, ensuring the reliability and security of signal transmission when the connection end is electrically connected.

[0058] Optionally, the connection end is located on the first sidewall, and the conductive element is bent.

[0059] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the cleaning equipment provided by the embodiments of this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 Schematic diagrams of the cleaning equipment provided in some embodiments of this application in different orientations; Figure 2 A schematic diagram of the structure of a wastewater tank assembly in a cleaning device provided in some embodiments of this application; Figure 3 A cross-sectional view of a wastewater tank assembly in a cleaning apparatus provided in some embodiments of this application; Figure 4 for Figure 2 A schematic diagram showing the approximate orientation of the combined structure of the top cover assembly and the support when the cleaning equipment is in a lying position. Figure 5 for Figure 4 A structural diagram of the combined structure from another perspective; Figure 6 A schematic diagram of the structure of a wastewater tank in a cleaning device provided in some embodiments of this application, wherein the bottom wall of the wastewater tank is a flexible wall; Figure 7 A longitudinal sectional view of a wastewater tank in a cleaning device provided in some embodiments of this application; wherein the bottom wall of the wastewater tank is a combination of a flexible wall and a rigid wall; Figure 8 One of the schematic diagrams of the bottom structure of the wastewater tank in the cleaning equipment provided in some embodiments of this application; Figure 9 A second schematic diagram of the bottom structure of the wastewater tank in a cleaning device provided in some embodiments of this application; Figure 10 A top-view structural diagram of the wastewater tank in a cleaning device provided in some embodiments of this application; Figure 11An exploded view of a wastewater tank assembly and a housing in a cleaning device provided in some embodiments of this application, wherein only a portion of the housing structure is shown. Figure 12 An exploded view of a wastewater tank assembly in a cleaning device provided in some embodiments of this application; Figure 13 Another exploded view of the wastewater tank assembly in a cleaning device provided in some embodiments of this application.

[0062] Explanation of reference numerals in the attached figures: 1. Wastewater tank assembly; 2. Suction motor; 210. Water tank mounting position; 212. First mounting groove; 3. Body; 4. Floor brush; 10. Wastewater tank; 101. Interval space; 11. First side wall; 12. Second side wall; 13. Third side wall; 14. Fourth side wall; 15. Wastewater inlet; 16. Groove; 161. Tank bottom wall; 162. Tank side wall; 163. Tank opening; 17. Flexible wall; 18. Rigid wall; 19. Second mounting groove; 191. Mounting hole; 100. Receiving cavity; 110. First space; 111. Wastewater inlet space; 112. Suction space; 120. Second space; 130, Transition space; 140, Box opening; 20, Top cover assembly; 21, First top cover; 211, Air vent; 22, Second top cover; 221, Handle position; 23, Third filter element; 30, Support; 31, First partition; 311, Sealing element; 32, Second partition; 40, Sewage inlet pipe; 50, Liquid level detection assembly; 51, Conductive element; 511, Detection probe; 512, Connection end; 52, Protective plate; 521, Clearance area; 60, Filter screen support; 61, Protruding structure; 70, First filter element; 80, Second filter element; 90, Deodorization assembly. Detailed Implementation

[0063] To make the technical solution and beneficial effects of the present invention more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0064] The cleaning equipment described in this application includes, but is not limited to, floor scrubbers, electric mops, steam mops, and sweeper-mop combos. For ease of description, a floor scrubber will be used as an example to provide a detailed description of the cleaning equipment below.

[0065] like Figure 1As shown, a floor scrubber generally includes a body 3 and a floor brush 4. During the cleaning process, the operator or user holds the machine on the body 3 and moves the body 3 to drive the floor brush 4 forward, causing the floor brush 4 to rub against the surface to be cleaned. Surfaces to be cleaned include floors, carpets, walls, tabletops, etc.

[0066] The floor scrubber may also include a wastewater tank 10, which is used to collect dirt from the cleaning process. The dirt is generally a mixture of solid and liquid.

[0067] The cleaning equipment may also include a suction motor 2. Typically, the floor brush 4 has a suction port, and a fluid channel exists between the suction port and the suction motor 2. The negative pressure suction generated by the high-speed operation of the suction motor 2 can penetrate the entire fluid channel. Under the action of negative pressure suction, dirt on the surface to be cleaned can enter the wastewater tank 10 through the suction port of the floor brush 4 and the fluid channel. During this process, most of the solid and liquid dirt in the mixed fluid carrying the dirt is separated under the action of gravity and inertia, falling into the wastewater tank 10 for storage, while the preliminarily purified air continues to flow to the suction motor 2 and is eventually discharged. The wastewater tank 10 is generally located below the suction motor 2.

[0068] See Figure 1 The cleaning device 3 can switch between an upright position (A), a lying position (C), and any position in between (such as position B during regular cleaning) relative to the brush 4. When not cleaning, the cleaning device is generally in the upright position (A). When cleaning in low-ceilinged spaces, the cleaning device is in the lying position (C). During regular cleaning (i.e., cleaning in non-low-ceilinged spaces), the cleaning device is in a position somewhere between the upright and lying positions (such as B).

[0069] In its lying-down position, the body 3 rotates relative to the floor brush 4 towards the surface to be cleaned, lowering the device height and facilitating the placement of the floor brush 4 and at least part of the body 3 into low-ceilinged spaces for cleaning. Therefore, when the cleaning device is in this lying-down position, at least part of the body 3 is parallel or nearly parallel to the surface to be cleaned, and the wastewater tank 10 is located within this part of the body 3, resulting in the wastewater tank 10 also being in a lying-down position. Wastewater in the lying-down wastewater tank 10 is easily carried by the airflow into the suction motor 2. Furthermore, during cleaning in this lying-down position, the back-and-forth movement of the cleaning device increases the ripples within the wastewater tank 10, further exacerbating the risk of wastewater entering the suction system.

[0070] The first inventive concept of this invention is to restrict the flow of sewage within the sewage tank 10. This restriction is particularly effective in reducing the risk of sewage flowing towards the suction motor 2 when the cleaning equipment is in a horizontal position.

[0071] The second inventive concept of this invention is: when the cleaning equipment is in a flat position, it absorbs the energy of the surge impact and slows down the water flow speed, reducing the generation of surging waves, thereby reducing the risk of water splashing and being sucked into the suction motor 2.

[0072] The third inventive concept of this invention is to simplify the structure of the sewage tank 10, which not only provides more space for sewage to be contained in the sewage tank 10, but also reduces the sanitary dead corners where dirt and grime can accumulate inside the sewage tank 10, making it easier to clean the tank. Moreover, in the first inventive concept, restricting the flow of sewage involves re-dividing the space inside the sewage tank 10. In related technologies, the sewage tank 10 is equipped with structures such as a deodorization component 90, a liquid level detection component 50, and a sewage inlet pipe 40. Simplifying the structure of the sewage tank 10 can better realize the first inventive concept.

[0073] In order to realize the above-mentioned inventive concept, combined with Figures 1 to 13 The embodiments of this application provide the following technical solutions.

[0074] Combination Figure 2 and Figure 3 As shown, the cleaning equipment provided in this embodiment includes a body 3, a suction motor 2, and a wastewater tank assembly 1, with both the wastewater tank 10 and the suction motor 2 located on the body 3. The wastewater tank assembly 1 includes a wastewater tank 10, a top cover assembly 20, and a support 30. The wastewater tank 10 includes a receiving cavity 100 (…). Figure 10 The system includes an inlet 15 and a tank opening 140 connected to the receiving cavity 100. A cover assembly 20 is detachably mounted on the tank opening 140 and has an air port 211 connecting the receiving cavity 100 and the suction motor 2. A bracket 30 is connected to the cover assembly 20 and can be separated from the wastewater tank 10 synchronously with the cover assembly 20. "Synchronous" here does not strictly mean maintaining the same time; it can be understood as: after the cover assembly 20 is removed, the bracket 30 can be taken out of the receiving cavity 100.

[0075] The support 30 includes a first partition 31 and a second partition 32. The first partition 31 divides the receiving cavity 100 into a first space 110 and a second space 120 communicating with the first space 110. The second partition 32 divides the first space 110 into a sewage inlet space 111 communicating with the sewage inlet 15 and an air intake space 112 communicating with the air outlet 211. When the cleaning equipment is in a lying position, the second partition 32 can guide the sewage in the sewage inlet space 111 to flow out of the first space 110 and at least partially enter the second space 120, while the first partition 31 can prevent the sewage entering the second space 120 from flowing back into the air intake space 112.

[0076] During the cleaning process of the cleaning equipment in a horizontal position in low-ceilinged spaces, the mixed fluid enters the wastewater inlet space 111 through the wastewater inlet 15. Near the wastewater inlet 15, the wastewater is confined within the wastewater inlet space 111 due to the obstruction and diversion effect of the second separator 32. Subsequently, the wastewater flows out of the wastewater inlet space 111 and is separated into gaseous and non-gase components (referring to the mixture of wastewater and solid waste) downstream of the second separator 32. The lighter gaseous component enters the suction motor 2 through the air inlet 211 of the suction space 112, while the heavier wastewater and solid waste flow out of the first space 110. Although both the wastewater inlet 15 and the air inlet 211 are located in the first space 110, they are separated by the second separator 32, which reduces the risk of wastewater entering the suction motor 2 through the air inlet 211, even if they are adjacent to each other.

[0077] Since the first space 110 and the second space 120 are connected, sewage flowing out of the first space 110 can flow into the second space 120. When the cleaning equipment is in a horizontal position, the first partition 31 can prevent sewage in the second space 120 from flowing back into the suction space 112, further reducing the risk of sewage entering the suction motor 2.

[0078] When the wastewater tank 10 needs cleaning, for example when the wastewater level in the receiving cavity 100 reaches the set maximum level, the wastewater tank assembly 1 can be removed from the body 3 first, and then the top cover assembly 20 can be removed from the wastewater tank 10. Since the bracket 30 is connected to the top cover assembly 20, when removing the top cover assembly 20, the bracket 30 can also be removed from the receiving cavity 100 simultaneously, allowing for separate cleaning of the first separator 31 and the second separator 32. The waste in the wastewater tank 10 can be poured out through the tank opening 140, meaning that the first separator 31 and the second separator 32 do not increase the difficulty of cleaning the wastewater tank 10.

[0079] As can be seen from the above, this case has two sets of partitions, and there is no maze-like structure between them. There is no maze-like surrounding structure between them. That is to say, there are no dead corners for cleaning in the partitions in this case. At the same time, there are no baffles inside the sewage tank 10 itself. This forms a system that can meet the needs of the machine body lying flat and can also form a very simple sewage tank 10 with no particularly complicated structure, making cleaning very convenient.

[0080] Combination Figure 2 , Figure 4 and Figure 5 In some optional embodiments, the receiving cavity 100 further includes a transition space 130 connecting the first space 110 and the second space 120, and the second partition 32 can guide the sewage in the sewage inlet space 111 to the transition space 130. When the cleaning equipment is in an upright position, the transition space 130 is located below the first space 110 and the second space 120; when the cleaning equipment is in a lying position, the second space 120 is located below the first space 110.

[0081] During routine cleaning, wastewater flowing down from the inlet space 111 enters the transition space 130 under gravity. Typically, the maximum water level is not exceeded by the transition space 130, meaning that under normal cleaning conditions, wastewater will generally not enter the second space 120. Furthermore, since the air vent 211 is located at the top of the wastewater tank 10, there is virtually no risk of liquid entering the air vent 211. In the flat cleaning scenario, wastewater flows towards the top cover assembly 20, increasing the risk of wastewater entering the air vent 211. Since the first space 110 is located above the second space 120, and consequently the air vent 211 is also located above the second space 120, although wastewater can enter the second space 120 from the transition space 130, the first separator 31 prevents wastewater in the second space 120 from flowing towards the air vent 211, reducing the risk of wastewater entering the suction motor 2 via the air vent 211 in the flat position.

[0082] In some alternative embodiments, when the cleaning device is in an upright position, the first partition 31 extends vertically, the bottom of the first partition 31 is above the bottom wall of the sewage tank 10, and the bottom position of the first partition 31 is lower than the bottom position of the second partition 32.

[0083] This layout allows for a more rational division of the containment cavity 100, with the space below the first partition 31 forming a transition space 130. Taking the cleaning equipment in an upright position as an example: since the bottom of the first partition 31 is lower than the second partition 32, the sewage inlet space 111 is connected to the air intake space 112. After the mixed fluid entering the containment cavity 100 undergoes gas-liquid and gas-solid separation below the first partition 31, the gas can flow upwards to the air inlet 211, while sewage and solid waste continue to fall.

[0084] See Figure 3 In some optional embodiments, the wastewater tank 10 includes a first sidewall 11, a second sidewall 12, a third sidewall 13, and a fourth sidewall 14. When the cleaning device is in a flat position, the first sidewall 11 faces the surface to be cleaned. The second sidewall 12 and the first sidewall 11 are located on opposite sides of the first partition 31, respectively. The third sidewall 13 and the fourth sidewall 14 are arranged opposite each other and connected to the first sidewall 11 and the second sidewall 12, respectively. The first partition 31 abuts against the third sidewall 13 and the fourth sidewall 14, respectively. The first sidewall 11, the first partition 31, and a portion of the third sidewall 13 and the fourth sidewall 14 enclose a first space 110, and the second sidewall 12, the first partition 31, and another portion of the third sidewall 13 and the fourth sidewall 14 enclose a second space 120. This method of using the first partition 31 and the existing sidewalls of the wastewater tank 10 to form the first space 110 and the second space 120 is simple in structure and can improve space utilization.

[0085] Figure 3 The sewage tank 10 shown has a roughly rectangular cross-section, and the first partition 31 is a plate.

[0086] To prevent leakage, the first partition 31 is tightly connected to the inner wall of the sewage tank 10 by a sealing element 311 (such as a rubber strip). The second partition 32 is also tightly connected to the inner wall of the sewage tank 10 by a sealing element 311.

[0087] In some alternative embodiments, the second partition 32 is disposed on the first partition 31 and is disposed at an angle to the first partition 31. The second partition 32 abuts against the first sidewall 11. The first partition 31, the second partition 32 and the first sidewall 11 together enclose the sewage inlet space 111.

[0088] The first space 110 forms an air intake space 112 on the outer side of the second partition 32, and the air intake space 112 generally surrounds the sewage inlet space 111. Thus, the air intake space 112 and the sewage inlet space 111 are formed by the first partition 31, the second partition 32, and part of the sidewall of the sewage tank 10. This structure further improves the space utilization of the receiving cavity 100. Furthermore, the air vent 211 is adjacent to the second partition 32, so that when the cleaning equipment is in a horizontal position, the air vent 211 can be positioned higher, further reducing the risk of sewage entering the air vent 211.

[0089] Figure 4 and Figure 5 In the implementation shown, the second separator 32 is perpendicular to the first separator 31. Of course, the angle between the second separator 32 and the first separator 31 is not limited to 90°.

[0090] See Figure 6 In some alternative embodiments, at least a portion of the bottom wall of the sewage tank 10 that is in contact with the sewage is a flexible wall 17. When the cleaning equipment is in a flat position, the flexible wall 17 can reduce the surge of sewage through deformation to prevent sewage from being sucked in by the suction motor 2.

[0091] During the operation of the cleaning equipment lying flat, the sewage will surge back and forth in the receiving cavity 100 and hit the bottom wall. The flexible wall 17 will deform under the impact of the sewage to absorb the impact energy and slow down the water flow speed, thereby reducing the generation of surging waves and reducing the risk of water splashing and being sucked into the suction motor 2.

[0092] The flexible wall 17 can be made of a waterproof flexible material. The deformation of the flexible wall 17 is recoverable and it is elastic. For example, the flexible wall 17 can be made of rubber.

[0093] In some alternative embodiments, the body 3 is provided with a water tank mounting position 210 for installing the sewage tank 10, and there is a gap between the flexible wall 17 and the water tank mounting position 210.

[0094] The space between the gaps provides a buffer for the deformation of the flexible wall 17, effectively ensuring the reduction effect of the flexible wall 17 on sewage surges.

[0095] For example, the water tank mounting position 210 can be Figure 11 The sewage tank assembly 1 is detachably installed in the mounting cavity shown.

[0096] See Figure 7 and Figure 8 In some alternative embodiments, the bottom wall of the wastewater tank 10 includes a flexible wall 17 and a rigid wall 18. When the cleaning equipment is in an upright position, the rigid wall 18 is located below the flexible wall 17, and there is a space 101 between the rigid wall 18 and the flexible wall 17. Figure 7 ).

[0097] The space 101 between the flexible wall 17 and the rigid wall 18 provides a buffer space for the deformation of the flexible wall 17, while the rigid wall 18 can directly contact the bottom of the water tank mounting position 210. In addition, the rigid wall 18 also provides some protection for the flexible wall 17.

[0098] See Figure 6 In some embodiments, the entire bottom wall of the wastewater tank 10 is a flexible wall 17. This improves the buffering effect against surges.

[0099] When the bottom wall of the sewage tank 10 includes a flexible wall 17 and a rigid wall 18, see [reference needed]. Figure 7 In some embodiments, the area of ​​the rigid wall 18 is greater than or equal to the area of ​​the flexible wall 17. This can be understood as the rigid wall 18 covering and surrounding the flexible wall 17, with a gap between the bottom of the rigid wall 18 and the flexible wall 17. This ensures the deformability of the flexible wall 17 and better protects it, preventing damage from hard objects when the flexible wall 17 is exposed.

[0100] See Figure 8 In some embodiments, the area of ​​the rigid wall 18 is smaller than that of the flexible wall 17, and the rigid walls 18 are respectively provided on the opposite two side edges of the flexible wall 17. Generally, the flexible wall 17 in the middle position has better deformability. Setting the rigid wall 18 at the edge position can reduce the deformation impact on the flexible wall 17, and can also serve as a load-bearing part in contact with other hard objects during the installation or placement of the sewage tank 10, thus protecting the flexible wall 17.

[0101] See Figure 9In some optional embodiments, the sewage tank assembly 1 further includes a deodorization assembly 90. The bottom wall of the sewage tank 10 is a rigid wall 18. The deodorization assembly 90 is detachably connected to the rigid wall 18 and passes through the rigid wall 18 into the receiving cavity 100.

[0102] Bacteria can easily grow and odors can occur inside the wastewater tank 10. The deodorizing component 90 can reduce odors inside the wastewater tank 10 and improve the user experience. The deodorizing component 90 can pass through the rigid wall 18 from the outside of the wastewater tank 10 and extend into the receiving cavity 100 to deodorize the receiving cavity 100. This makes it less likely to get your hands dirty when disassembling the deodorizing component 90. When the wastewater tank 10 needs to be cleaned, the deodorizing component 90 can be removed separately, making it convenient to clean the wastewater tank 10 and the deodorizing component 90 separately, further simplifying the structure of the wastewater tank 10.

[0103] Without limitation, the deodorizing component 90 may include a rod-shaped or box-shaped body. Taking a rod-shaped component as an example, the interior of the rod-shaped body is filled with deodorizing particles or a deodorizing agent to achieve a deodorizing effect.

[0104] The deodorizing component 90 can be detachably connected to the rigid wall 18 by means of threaded connection, snap-fit, or fastening.

[0105] See Figure 5 In some alternative embodiments, the first partition 31 has a protruding structure 61 that protrudes into the second space 120. When the cleaning equipment is in a flat position, the protruding structure 61 can reduce the surge of sewage.

[0106] Figure 5 In the example implementation shown, the height of the protrusion 61 protruding from the first partition 31 is much smaller than the distance between the protrusion 61 and the second sidewall 12, and the protrusion 61 is located approximately in the middle of the first partition 31.

[0107] When the cleaning equipment is in a flat position, the sewage sways back and forth. The raised structure 61 can break the integrity of the water body, increase the flow resistance, and "disperse" the large-scale, impactful waves into small-scale, lower-energy turbulence, thereby reducing the risk of sewage entering the suction motor 2 due to the back and forth movement of the cleaning equipment.

[0108] Combination Figure 4 and Figure 5 In some alternative embodiments, the wastewater tank assembly 1 also includes a filter support 60, with the protruding structure 61 being part of the filter support 60.

[0109] The filter holder 60 is used to install a disposable filter, which can filter hair, fibers, large particles of waste, etc., and plays a preliminary filtering role in the mixed fluid entering the receiving cavity 100.

[0110] The filter support 60 is located at the bottom of the second partition 32 and extends from the first space 110 to the second space 120, with the portion extending into the second space 120 forming a raised structure 61. This multi-purpose design of a single component improves the utilization of the space within the wastewater tank 10.

[0111] In some alternative embodiments, the support 30 further includes a first filter element 70 and a second filter element 80 disposed at the bottom of the first partition 31. Wastewater flowing out of the sewage inlet space 111 flows to the transition space 130 after being filtered by the first filter element 70. The second filter element 80 is located between the second space 120 and the transition space 130.

[0112] When the cleaning equipment is in an upright position, the first filter element 70 is located below the first space 110. Both the first filter element 70 and the second filter element 80 are used to achieve solid-liquid separation. For example, when the cleaning equipment is in a horizontal position, the mixed fluid entering through the inlet 15 flows through the first filter element 70. The first filter element 70 traps some solid waste in the first space 110, while sewage and some other solid waste may still pass through the filter holes of the first filter element 70 into the transition space 130. As the machine body 3 moves back and forth, the sewage and solid waste in the transition space 130 will be filtered again by the second filter element 80 as they rush towards the second space 120. The second filter element 80 traps solid waste in the transition space 130 and allows sewage to pass through. The second filter element 80 performs secondary filtration based on the first filter element 70, reducing the amount of solid waste entering the second space 120 and adhering to the first separator 31 or the inner wall of the sewage tank 10 in the second space 120, which is beneficial for cleaning the sewage tank assembly 1.

[0113] Furthermore, the second filter element 80 also helps reduce the surge of wastewater.

[0114] To better ensure the secondary filtration effect, the pore size of the second filter element 80 can be smaller than that of the first filter element 70.

[0115] In some alternative embodiments, the first separator 31, the second separator 32, the first filter element 70, and the second filter element 80 are integral structures.

[0116] The integrated structure not only ensures reliable connections between components, but also reduces gaps at the joints of different components, making cleaning easier.

[0117] In some implementations, refer to Figure 3The top cover assembly 20 includes a first top cover 21, a second top cover 22, and a third filter element 23. The first top cover 21 covers the box opening 140, and the suction port is located on the first top cover 21. The second top cover 22 is connected above the first top cover 21 and has a handle 221 for easy user removal of the top cover assembly 20. The third filter element 23 is located between the suction port and the suction motor 2. The airflow drawn in by the air inlet 211 flows to the suction motor 2 after being filtered by the third filter element 23. The third filter element 23 can be a structure such as HEPA. Optionally, the first top cover 21, the first partition 31, the second partition 32, the first filter element 70, and the second filter element 80 are an integral structure.

[0118] The "integral structure" in this application embodiment can be a one-piece molded structure through machining or injection molding.

[0119] See Figure 2 and Figure 3 In some alternative embodiments, the wastewater tank assembly 1 further includes a wastewater inlet pipe 40, which is located outside the receiving cavity 100 and communicates with the wastewater inlet 15.

[0120] In related technologies, the inlet pipe 40 is located inside the sewage tank 10, which not only occupies valuable space in the containing cavity 100 for storing sewage, but also easily accumulates dirt at the connection between the inlet pipe 40 and the inner wall of the sewage tank 10. In some cases, the distance between the inlet pipe 40 and one side of the inner wall of the sewage tank 10 is relatively short. This narrow space is an area that is difficult for cleaning tools to reach, creating a blind spot and further increasing the difficulty of cleaning the sewage tank 10. In the embodiment of this application, see... Figure 10 By placing the sewage inlet pipe 40 externally, the structure of the sewage tank 10 is simplified as much as possible, reducing irregular corners and hidden dead corners inside the sewage tank 10, making it easier to clean the sewage tank 10.

[0121] Moreover, the simple internal structure of the sewage tank 10 provides greater design freedom for the arrangement of other functional components, such as providing greater freedom to realize the first inventive concept, making the overall structural layout more flexible and reasonable.

[0122] Based on the foregoing description, see [link / reference]. Figure 4 and Figure 5 The bracket 30 can be removed from the sewage tank 10 along with the cover assembly 20. After removal, the bracket 30 has virtually no enclosed space, and structures such as the first partition 31, the second partition 32, the first filter 70, and the second filter 80 can be exposed, which also facilitates the cleaning of the bracket 30.

[0123] In some alternative embodiments, the inlet pipe 40 is detachably mounted on the body 3.

[0124] Once the wastewater reaches the set maximum water level, remove the wastewater tank assembly 1 from the main body 3. (See below)Figure 11 The sewage inlet pipe 40 remains on the body 3. When the sewage tank assembly 1 is reinstalled, the sewage inlet 15 of the sewage tank 10 is aligned with the outlet of the sewage inlet pipe 40. The sewage from the surface to be cleaned can then flow into the receiving cavity 100 through the suction port at the bottom of the floor brush 4, the inlet at the bottom of the sewage inlet pipe 40, the outlet at the top of the sewage inlet pipe 40, and the sewage inlet 15 of the sewage tank 10.

[0125] Since the inlet pipe 40 is detachable, it can be cleaned separately after being removed from the machine body 3, which is simple and convenient.

[0126] In some optional embodiments, the body 3 is provided with a water tank mounting position 210, and the sewage inlet pipe 40 is disposed in the water tank mounting position 210 and located between the sewage tank 10 and the body 3. That is, the sewage inlet pipe 40 is approximately opposite to the first side wall 11 of the sewage tank 10 and located inside the sewage tank 10. In this way, the sewage inlet pipe 40 is equivalent to being "clamped" between the sewage tank 10 and the body 3, which helps to enhance the reliability of the connection between the sewage pipe and the sewage inlet 15, and reduces or even avoids the displacement of the sewage inlet pipe 40 due to vibration during the cleaning process, thereby affecting the sealing between the sewage inlet pipe 40 and the sewage inlet 15.

[0127] See Figure 11 When the sewage inlet pipe 40 is installed on the machine body 3, a pipe installation position can be set in the water tank installation position 210 for installing the sewage inlet pipe 40.

[0128] See Figure 11 The water tank installation position 210 is provided with a first installation groove 212, and the sewage inlet pipe 40 is detachably installed in the first installation groove 212.

[0129] The inlet pipe 40 can be detachably connected using the structure of the first mounting groove 212 itself. For example, the inlet pipe 40 can be detachably snapped into the first mounting groove 212, and the connection between the inlet pipe 40 and the inner wall of the first mounting groove 212 can be achieved by using an interference fit between the inlet pipe 40 and the first mounting groove 212. To remove the inlet pipe 40, simply apply external force to pull it out from the opening of the first mounting groove 212.

[0130] Alternatively, the inlet pipe 40 can be detachably connected to the side wall of the sewage tank 10 via a second quick-release structure. Of course, the second quick-release structure can be combined with the first mounting groove 212 to jointly secure the inlet pipe 40.

[0131] The second quick-release structure includes, but is not limited to, magnetic components, snap-fit ​​components, or fastening components.

[0132] See Figure 12In some alternative embodiments, the inlet pipe 40 is detachably connected to the wastewater tank 10. In this case, the inlet pipe 40 can be removed from the machine body 3 simultaneously with the wastewater tank 10, and then removed separately from the wastewater tank 10. In this scenario, a pipe mounting position for the inlet pipe 40 needs to be provided on the wastewater tank 10.

[0133] In some alternative embodiments, the side wall of the sewage tank 10 is provided with a groove 16, and the sewage inlet pipe 40 and the sewage inlet 15 are both located in the groove 16.

[0134] In some implementations, when the inlet pipe 40 is installed on the body 3, the groove 16 can be used to avoid the inlet pipe 40.

[0135] In some implementations, when the inlet pipe 40 is installed in the sewage tank 10, the groove 16 can serve as the installation position for the inlet pipe 40, and the inlet pipe 40 is detachably snapped into the groove 16. For example, when the inlet pipe 40 is installed in the groove 16, the friction between its outer wall and the inner wall of the groove 16 prevents the inlet pipe 40 from separating from the sewage tank 10. When it is necessary to remove the inlet pipe 40, an external force greater than the friction force is applied to the inlet pipe 40, and the inlet pipe 40 can be pulled out of the groove 16.

[0136] For example, see Figure 12 The groove 16 includes a bottom wall 161 and a side wall 162 surrounding the bottom wall 161. The side wall 162 has an opening 163, through which the inlet pipe 40 enters and exits the groove 16. This groove 16 allows for the detachable installation of the inlet pipe 40, and its simple structure and open space help reduce unsanitary corners on the outside of the sewage tank 10, making cleaning easier.

[0137] Groove 16 can be set to a position Figure 12 The roughly straight line shape shown is roughly parallel to the height direction of the sewage tank 10.

[0138] Of course, the sewage inlet pipe 40 can also be installed without the groove 16. For example, the sewage inlet pipe 40 can be detachably connected to the side wall of the sewage tank 10 through a first quick-release structure, which includes a magnetic component, a snap-fit ​​component, or a fastening component.

[0139] In some optional embodiments, the wastewater tank assembly 1 further includes a liquid level detection assembly 50, which includes a detection probe 511, a connection end 512, and a conductive element 51 connected to the detection probe 511 and the connection end 512 respectively. The conductive element 51 can transmit the detection information of the detection probe 511 to the controller via the connection end 512. The detection probe 511 can at least partially contact the wastewater, and both the conductive element 51 and the connection end 512 are located outside the wastewater tank 10. When the cleaning equipment is in a flat position, the detection probe 511 is located above the first side wall 11 to detect the amount of liquid in the receiving cavity 100.

[0140] The detection probe 511 can be used to detect the highest water level in the sewage tank 10. After receiving the signal from the connection terminal 512, the controller determines that the water level has reached the preset highest water level and can control the cleaning equipment to issue an early warning.

[0141] The detection probe 511 is positioned above the first side wall 11, which not only satisfies the liquid level detection function under normal cleaning work, but also enables liquid level detection in a lying position.

[0142] Placing the conductive component 51 and the connecting end 512 on the outside of the wastewater tank 10 reduces the number of structural components inside the receiving cavity 100, improving the effective utilization of the liquid storage space. This allows the cleaning equipment to store more wastewater and extends the continuous working time of the wastewater tank 10. Furthermore, the simplified internal structure provides greater design freedom for the arrangement of other functional components, making the overall structural layout more flexible and rational. Moreover, this external conductive component 51 and connecting end 512 design avoids the complex internal wiring and redundant structures common in existing solutions, eliminating irregular corners and hidden dead angles within the receiving cavity 100 where dirt easily accumulates. This makes cleaning and maintenance of the entire wastewater tank 10 simpler and more thorough, preventing problems such as dirt accumulation, bacterial growth, and odor. This not only improves the product's practicality but also enhances the user experience. In addition, the external conductive component 51 and connecting end 512 design also avoids circuit corrosion problems that may occur due to long-term liquid contact, ensuring the stability of signal transmission.

[0143] The sewage tank 10 can be a sewage tank 10 with a roughly rectangular cross-section or a sewage tank 10 with a roughly cylindrical shape.

[0144] The number of detection probe 511, connection terminal 512 and conductive component 51 can each be set to two or more independently.

[0145] In some optional embodiments, the detection probe 511 includes a first probe and a second probe, which are located on opposite sides of the wastewater tank 10. When the cleaning equipment is in an upright or lying position, both the first and second probes are at the same horizontal height. This creates a dual-sidewall detection mode, and the control module only issues an alarm when it simultaneously receives signals from both the first and second probes. This approach improves the accuracy and reliability of the detection results.

[0146] In some alternative embodiments, when the sewage tank assembly 1 is installed on the body 3, the connection end 512 is located between the first side wall 11 of the sewage tank 10 and the body 3. This can prevent the connection end 512 from being exposed and ensure the reliability and safety of the connection end 512 when transmitting signals via electrical connection.

[0147] For example, for a sewage tank 10 with a roughly rectangular cross-section, the third side wall 13 and the fourth side wall 14 are both adjacent to the first side wall 11, the sewage inlet 15 is located on the first side wall 11, and one of the aforementioned first probe and second probe can be located on the third side wall 13 and the other on the fourth side wall 14.

[0148] See Figure 13 In some alternative embodiments, the connection end 512 is located on the first sidewall 11, and the conductive element 51 is bent.

[0149] The conductive component 51 connected to the first probe and the conductive component 51 connected to the second probe are both bent. This bend matches the shape of the outer wall of the sewage tank 10 so that the conductive component 51 fits against the outer wall of the sewage tank 10, ensuring the flatness of the outer wall of the sewage tank 10.

[0150] See Figure 13 In some embodiments, a second mounting groove 19 and a mounting hole 191 located in the second mounting groove 19 are provided on the side wall of the sewage tank 10. The conductive element 51 and the connecting end 512 are both located in the second mounting groove 19, and the detection probe 511 extends into the receiving cavity 100 through the mounting hole 191.

[0151] In some embodiments, the level detection assembly 50 may further include a protective plate 52 having a clearance area 521. The protective plate 52 covers the electrical component to limit the conductive component 51 between the protective plate 52 and the side wall of the wastewater tank. The clearance area 521 abuts against a connection end 512 so that the connection end 512 is exposed outside the side wall of the wastewater tank 10. The clearance area 521 may be... Figure 13 The through-hole type shown.

[0152] The conductive element 51 is sheet-shaped, and both the detection probe 511 and the connecting end 512 are protrusions on the conductive element 51. The detection probe 511, the conductive element 51, and the connecting end 512 can be an integral structure. This structure of the conductive element 51 is simpler and also allows for a smaller depth of the second mounting groove 19. The second mounting groove 19 is located on the outer wall of the sewage tank 10, and its depth is less than the thickness of the side wall of the sewage tank 10. For example, the second mounting groove 19 can be set to a few millimeters.

[0153] The liquid level detection component 50 in this embodiment can be modularly integrated. The modular structural design also facilitates later maintenance and makes the cleaning equipment have a longer service life.

[0154] In the description of this invention, the terms "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limiting this invention.

[0155] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of those features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc.

[0156] In this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; 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 also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0157] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0158] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device, characterized in that, The cleaning equipment includes: a body (3), a suction motor (2), and a wastewater tank assembly (1), wherein the wastewater tank assembly (1) and the suction motor (2) are both located in the body (3), and the wastewater tank assembly (1) includes: The sewage tank (10) includes a receiving cavity (100), and a sewage inlet (15) and a tank opening (140) communicating with the receiving cavity (100). The top cover assembly (20) is detachably disposed at the box opening (140), and the top cover assembly (20) has an air port (211) communicating with the receiving cavity (100) and the suction motor (2). The bracket (30) is connected to the upper cover assembly (20) and can be separated from the sewage tank (10) synchronously with the upper cover assembly (20); The support (30) includes a first partition (31) and a second partition (32). The first partition (31) divides the receiving cavity (100) into a first space (110) and a second space (120) communicating with the first space (110). The second partition (32) divides the first space (110) into a sewage inlet space (111) communicating with the sewage inlet (15) and an air intake space (112) communicating with the air outlet (211). When the cleaning equipment is in a flat position, the second partition (32) can guide the sewage in the sewage inlet space (111) out of the first space (110) and at least partially into the second space (120), and the first partition (31) can prevent the sewage entering the second space (120) from flowing back into the air intake space (112).

2. The cleaning equipment according to claim 1, characterized in that, The receiving cavity (100) further includes a transition space (130) connecting the first space (110) and the second space (120), and the second partition (32) can guide the sewage in the sewage inlet space (111) to the transition space (130). When the cleaning device is in an upright position, the transition space (130) is located below the first space (110) and the second space (120); when the cleaning device is in a lying position, the second space (120) is located below the first space (110).

3. The cleaning equipment according to claim 2, characterized in that, When the cleaning equipment is in an upright position, the first partition (31) extends vertically, the bottom of the first partition (31) is above the bottom wall of the sewage tank (10), and the bottom position of the first partition (31) is lower than the bottom position of the second partition (32).

4. The cleaning equipment according to claim 3, characterized in that, The wastewater tank (10) includes a first sidewall (11), a second sidewall (12), a third sidewall (13), and a fourth sidewall (14). When the cleaning device is in a flat position, the first sidewall (11) faces the surface to be cleaned, the second sidewall (12) and the first sidewall (11) are located on opposite sides of the first partition (31), the third sidewall (13) and the fourth sidewall (14) are arranged opposite to each other and are connected to the first sidewall (11) and the second sidewall (12) respectively. The first partition (31) abuts against the third sidewall (13) and the fourth sidewall (14) respectively. The first sidewall (11), the first partition (31), and a portion of the third sidewall (13) and the fourth sidewall (14) enclose to form a first space (110). The second sidewall (12), the first partition (31), and another portion of the third sidewall (13) and the fourth sidewall (14) enclose to form a second space (120).

5. The cleaning equipment according to claim 4, characterized in that, The second partition (32) is disposed on the first partition (31) and is disposed at an angle to the first partition (31). The second partition (32) abuts against the first side wall (11). The first partition (31), the second partition (32) and the first side wall (11) together enclose the sewage inlet space (111).

6. The cleaning equipment according to any one of claims 1 to 5, characterized in that, At least part of the bottom wall of the sewage tank (10) that is in contact with sewage is a flexible wall (17). When the cleaning equipment is in a flat position, the flexible wall (17) can reduce the surge of sewage by deformation to prevent sewage from being sucked in by the suction motor (2).

7. The cleaning equipment according to claim 6, characterized in that, The body (3) is provided with a water tank mounting position (210) for installing the sewage tank (10), and there is a gap between the flexible wall (17) and the water tank mounting position (210).

8. The cleaning equipment according to claim 6, characterized in that, The bottom wall of the sewage tank (10) includes a flexible wall (17) and a rigid wall (18). When the cleaning equipment is in an upright state, the rigid wall (18) is located below the flexible wall (17), and there is a gap between the rigid wall (18) and the flexible wall (17).

9. The cleaning equipment according to any one of claims 1 to 5, characterized in that, The sewage tank assembly (1) further includes a deodorizing assembly (90). The bottom wall of the sewage tank (10) is a rigid wall (18). The deodorizing assembly (90) is detachably connected to the rigid wall (18), and the deodorizing assembly (90) passes through the rigid wall (18) and enters the receiving cavity (100).

10. The cleaning equipment according to claim 6, characterized in that, The first partition (31) has a protruding structure (61) protruding into the second space (120), which can reduce the surge of sewage when the cleaning device is in a flat position.

11. The cleaning equipment according to claim 10, characterized in that, The wastewater tank assembly (1) also includes a filter support (60), and the protruding structure (61) is part of the filter support (60).

12. The cleaning equipment according to any one of claims 2 to 5, characterized in that, The support (30) also includes a first filter element (70) and a second filter element (80) disposed at the bottom of the first separator (31). The sewage flowing out of the sewage inlet space (111) flows to the transition space (130) after being filtered by the first filter element (70). The second filter element (80) is located between the second space (120) and the transition space (130).

13. The cleaning equipment according to claim 12, characterized in that, The first separator (31), the second separator (32), the first filter (70) and the second filter (80) are integral structures.

14. The cleaning equipment according to claim 1, characterized in that, The sewage tank assembly (1) also includes a sewage inlet pipe (40), which is located outside the receiving cavity (100) and communicates with the sewage inlet (15).

15. The cleaning equipment according to claim 14, characterized in that, The inlet pipe (40) is detachably mounted on the body (3).

16. The cleaning equipment according to claim 15, characterized in that, The body (3) is provided with a water tank mounting position (210), and the sewage inlet pipe (40) is located at the water tank mounting position (210) and between the sewage tank (10) and the body (3).

17. The cleaning equipment according to claim 14, characterized in that, The inlet pipe (40) is detachably connected to the sewage tank (10).

18. The cleaning equipment according to claim 17, characterized in that, The side wall of the sewage tank (10) is provided with a groove (16), and the sewage inlet pipe (40) and the sewage inlet (15) are both located in the groove (16).

19. The cleaning equipment according to claim 1 or 14, characterized in that, The wastewater tank assembly (1) further includes a liquid level detection assembly (50), which includes a detection probe (511), a connection end (512), and a conductive element (51) connected to the detection probe (511) and the connection end (512) respectively. The conductive element (51) can transmit the detection information of the detection probe (511) to the controller through the connection end (512). The detection probe (511) is at least partially in contact with the sewage, and the conductive element (51) and the connection end (512) are both located outside the sewage tank (10); The wastewater tank (10) includes a first sidewall (11). When the cleaning device is in a flat position, the first sidewall (11) faces the surface to be cleaned. The detection probe (511) is located above the first sidewall (11) to detect the amount of liquid in the containment cavity (100).

20. The cleaning equipment according to claim 19, characterized in that, The detection probe (511) includes a first probe and a second probe, which are located on opposite sides of the sewage tank (10); when the cleaning equipment is in an upright or lying position, the first probe and the second probe are at the same horizontal height.

21. The cleaning equipment according to claim 19, characterized in that, The connecting end (512) is located between the first side wall (11) and the fuselage (3).

22. The cleaning equipment according to claim 21, characterized in that, The connecting end (512) is installed on the first sidewall (11), and the conductive element (51) is bent.

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