Water tank module and sweeping robot

Abstract

The invention provides a water tank module and a sweeping robot, and relates to the technical field of robots. The water tank module comprises a water tank assembly and a switch assembly, the water tank assembly comprises a water tank, the water tank is provided with an inflation hole, an air inlet hole and a water outlet hole, and the inflation hole extends towards the bottom of the water tank and is close to the bottom of the water tank; the switch assembly is arranged in the air inlet hole and is configured to enable the air inlet hole to be switched between a closed state and an open state. The universal compatibility of the water tank can be improved, the use requirements of air pump type, water pump type and peristaltic pump type electric control water tanks can be met, one set of production mold and manufacturing process is shared, and the production cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of robots, and in particular to a water tank module and a sweeping robot. Background Art

[0002] With the prevalence of smart homes, robot vacuums have become an essential cleaning tool for modern households. The electronically controlled water tank, a core component that enables mopping, directly impacts the product's market competitiveness and user experience. Generally, commercially available robot vacuums utilize three main electronically controlled water tank solutions: air pump, water pump, and peristaltic pump. However, these three types of water tanks are not universally compatible, requiring customization for each type, hindering production costs. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide a water tank module and a sweeping robot that can improve the universal compatibility of the water tank, meet the use requirements of air pump type, water pump type and peristaltic pump type electronically controlled water tanks, share a set of production molds and manufacturing processes, and effectively reduce production costs.

[0004] The present invention provides the following technical solutions: In a first aspect, an embodiment of the present application provides a water tank module, the water tank module comprising: A water tank assembly, the water tank assembly comprising a water tank having an air filling hole, an air inlet hole, and a water outlet hole, wherein the air filling hole extends toward the bottom of the water tank so as to be close to the bottom of the water tank; A switch assembly is provided at the air inlet and configured to enable the air inlet to switch between a closed state and an open state.

[0005] In some embodiments of the first aspect, the switch assembly includes a sealing member removably disposed on the air inlet.

[0006] In some embodiments of the first aspect, the switch assembly includes a valve member, which is arranged at the air inlet, and the valve member has a valve opening. Adjustment of the valve opening enables the air inlet to switch at least between the closed state and the open state.

[0007] In some embodiments of the first aspect, the valve member includes: The valve plate has a sealing portion and a connecting portion, the connecting portion is connected to the water tank, the sealing portion is configured as an elastic structure, the sealing portion is located on the inner side of the water tank assembly, and under the action of the elastic restoring force of the sealing portion, the sealing portion and the air inlet hole form a dynamic sealing pair.

[0008] In some embodiments of the first aspect, the water tank assembly further comprises: A leak-proof component is provided at the water outlet in an openable and closable manner; wherein, the opening and closing of the leak-proof component can switch the water outlet between an open state and a closed state.

[0009] In some embodiments of the first aspect, the leakage prevention component is configured as a pressure valve, which is arranged at the water outlet. The pressure valve has an opening pressure, and when the hydraulic pressure of the liquid in the water tank reaches the opening pressure, the pressure valve is in an open state.

[0010] In some embodiments of the first aspect, the water tank has a water inlet, which is located at the top of the water tank. The water tank assembly also includes a water tank plug, which is at least partially inserted into the water inlet to close the water inlet.

[0011] In some embodiments of the first aspect, the water tank includes a bottom shell, a middle shell and a top cover that are detachably connected from bottom to top, a water cavity is defined between the bottom shell and the middle shell, and an installation cavity is defined between the middle shell and the top cover.

[0012] In a second aspect, an embodiment of the present application further provides a sweeping robot, the sweeping robot comprising a water tank module and a drainage module as described in any one of the above embodiments, the drainage module having an inlet and an outlet; Wherein, when the extraction module is used to extract the gaseous medium, the air inlet is in a closed state, and the outlet of the extraction module is connected to the air filling hole of the water tank module to extract the gaseous medium into the water tank; When the pumping module is used to pump out liquid media, the air inlet is in an open state, and the inlet is connected to the water outlet of the water tank module to pump out the liquid in the water tank.

[0013] In some embodiments of the second aspect, the cleaning robot further includes: A chassis module, the chassis module having a transfer channel and at least two water spray ports, the water tank module being connected to the chassis module; When the extraction module is used to extract gaseous media, one end of the transfer channel is connected to the water outlet, and the other end of the transfer channel is connected to all the water spray ports. The outlet of the extraction module is connected to the inflation hole through a transfer tube, and at least a portion of the transfer tube is higher than the extraction module. When the pumping module is used to pump liquid media, one end of the transfer channel is connected to the water outlet, the other end of the transfer channel is connected to the inlet of the pumping module, and the outlet of the pumping module is connected to all the water outlets.

[0014] The embodiments of the present invention have the following advantages: The water tank module provided by the present invention is adopted, and the water tank module is integratedly designed so that the same water tank structure can adapt to three electrical control schemes: air pump type, water pump type and peristaltic pump type. The inflation hole extends close to the bottom of the water tank, which is convenient for the air pump type scheme to directly inflate and pressurize the bottom of the water tank, pushing the water to be discharged from the water outlet. The air inlet is controlled to open and close by a switch component (such as a solenoid valve or a mechanical valve). In the air pump type scheme, the air inlet is closed to maintain the air pressure; in the water pump type or peristaltic pump type scheme, the air inlet is opened to balance the internal and external air pressure to ensure stable water pumping. The water outlet can be connected to different types of pump bodies (water pump / peristaltic pump) or directly used as the water outlet of the air pump to achieve controllable water flow output.

[0015] The air inlet status is automatically or manually adjusted based on the electronic control type. For example, in pump mode, the air inlet is closed to seal the boost pressure; in other modes, the air inlet is open to prevent negative pressure from hindering the pump operation.

[0016] Therefore, a single water tank structure accommodates three electronic control solutions, eliminating the need for custom water tanks for different pump models and significantly reducing duplication in mold development and production lines. Sharing molds and manufacturing processes reduces R&D, mold development, and production costs, while also streamlining supply chain management. The standardized design facilitates future replacement or upgrades of electronic control solutions, eliminating the need to replace water tanks due to technology changes, improving product lifecycle management efficiency. Optimized hole layout (such as positioning the air hole near the bottom) ensures that both air pressure and the pump body can efficiently drive the water flow, avoiding the uneven water flow control issues associated with traditional solutions due to structural differences.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without making any creative efforts.

[0019] Figure 1 A schematic structural diagram of a water tank module provided by an embodiment of the present invention from one perspective is shown; Figure 2 A schematic structural diagram of a sweeping robot provided by an embodiment of the present invention from one perspective is shown; Figure 3 A schematic structural diagram of a sweeping robot provided by an embodiment of the present invention from another perspective is shown; Figure 4 A schematic structural diagram of a sweeping robot provided by an embodiment of the present invention from another perspective is shown; Figure 5 A schematic structural diagram of a sweeping robot provided by another embodiment of the present invention from one perspective is shown; Figure 6 A schematic structural diagram of a sweeping robot provided by another embodiment of the present invention from another perspective is shown; Figure 7 A structural schematic diagram of a switch assembly provided by another embodiment of the present invention is shown from one perspective.

[0020] Description of main component symbols: 100-water tank module; 110-water tank; 111-top cover; 112-middle shell; 113-bottom shell; 120-water outlet; 130-air inlet; 140-water filling port; 150-water tank plug; 160-inflating hole; 170-installation cavity; 180-leakage-proof part; 190-water cavity; 200-exhaust module; 300-chassis module; 400-switch assembly; 410-connecting part; 420-sealing part. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by one skilled in the art to which this application belongs. The terms used in the template description herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] With the rise of smart homes, sweeping robots have become an essential cleaning tool for modern households. The electronically controlled water tank 110, a core component that enables mopping, directly impacts the product's market competitiveness and user experience. Commercially available sweeping robots typically utilize three main electronically controlled water tank 110 solutions: air pump, water pump, and peristaltic pump. However, these three types of water tanks 110 are not universally compatible, requiring customization for each type, hindering production costs.

[0027] As shown in FIG1 , in order to solve the above technical problems, an embodiment of the present application provides a water tank module 100, which includes a water tank 110 assembly and a switch assembly 400. The water tank 110 assembly includes a water tank 110, which has an air filling hole 160, an air inlet 130, and a water outlet 120. The air filling hole 160 extends toward the bottom of the water tank 110, so that the air filling hole 160 is close to the bottom of the water tank 110. The switch assembly 400 is provided at the air inlet 130 and is configured to enable the air inlet 130 to switch between a closed state and an open state.

[0028] In these embodiments, the present invention provides a water tank module 100 for a sweeping robot, which is compatible with three operating modes of an electric-controlled water tank 110: air pump type, water pump type, and peristaltic pump type. The water tank module 100 includes a water tank 110 assembly and a switch assembly 400, wherein: The water tank 110 assembly includes a universal water tank 110 with an air inlet 160, an air inlet 130, and a water outlet 120. The air inlet 160 extends toward the bottom of the water tank 110, with its outlet close to the bottom. This allows air pressure to effectively push the liquid within the water tank 110 out of the water outlet 120. The air inlet 130, located on the top or side of the water tank 110, controls the pressure balance of the external air entering the water tank 110. The water outlet 120 connects to the mop module or floor cleaning module to deliver cleaning fluid.

[0029] Furthermore, a switch assembly 400 is provided at the air inlet 130 for controlling the on / off state of the air inlet 130. The switch assembly 400 includes but is not limited to an opening and closing device that can be automatically or manually controlled, such as a solenoid valve, a mechanical valve, or an electric valve. When the switch assembly 400 is in a closed state, the air inlet 130 is sealed, and a closed space is formed inside the water tank 110. When the switch assembly 400 is in an open state, external air enters the water tank 110 through the air inlet 130, breaking the pressure difference and stopping the outflow of liquid. By controlling the opening and closing of the switch assembly 400, precise control of the liquid discharge process in the water tank 110 can be achieved, which is suitable for working requirements under different driving modes.

[0030] The core innovation of the present invention is that the unified water tank 110 structural design achieves compatibility with three working modes: air pump, water pump, and peristaltic pump. Air pump working mode: Close the switch assembly 400 (the air inlet 130 is closed), inject air into the bottom of the water tank 110 through the inflation hole 160, and use the air pressure difference to push the liquid out of the water outlet 120; Water pump or peristaltic pump working mode: turn on the switch assembly 400 (the air inlet 130 is open), and the water pump directly draws the liquid in the water tank 110 for spraying; Since the above modes can all be implemented in the same water tank 110 structure, there is no need to design a separate mold and manufacturing process for each driving mode, which significantly reduces production costs and improves the market adaptability of the product.

[0031] For example, the water tank 110 is made of an integrally molded plastic and has multiple positioning slots (not shown) on its surface to facilitate quick installation with the robot vacuum chassis module 300. For example, the switch assembly 400 is a miniature solenoid valve with a fast response speed and can be program-controlled by the robot's main control system to achieve intelligent water volume adjustment.

[0032] In addition, the water tank 110 assembly also includes a liquid level sensor for detecting the amount of water remaining in the water tank 110 and feeding back a signal to the control system so as to issue a prompt or automatically stop the water discharge operation when there is a lack of water.

[0033] For example, the switch assembly 400 may also be a mechanical slider valve, which is manually switched by the user; For example, the height of the inflation hole 160 can be adjusted according to different driving modes; In other words, the integrated design of the water tank module 100 enables the same water tank 110 structure to adapt to three electronic control solutions: air pump, water pump, and peristaltic pump. The inflation hole 160 extends near the bottom of the water tank 110, allowing the air pump solution to directly inflate and pressurize the bottom of the water tank 110, pushing water out of the water outlet 120. The air inlet 130 is controlled by a switch assembly 400 (such as a solenoid valve or mechanical valve). In the air pump solution, the air inlet 130 is closed to maintain air pressure; in the water pump or peristaltic pump solution, the air inlet 130 is opened to balance the internal and external air pressures and ensure stable water pumping. The water outlet 120 can be connected to different types of pumps (water pump / peristaltic pump) or directly serve as the outlet of the air pump, achieving controllable water output.

[0034] The state of the air inlet 130 is automatically or manually adjusted according to the type of electronic control. For example, in the air pump mode, the air inlet 130 is closed to seal and increase pressure; in other modes, the air inlet 130 is opened to prevent negative pressure from hindering the operation of the pump body.

[0035] Therefore, a single water tank 110 structure accommodates three electronic control solutions, eliminating the need for custom water tanks 110 for different pump models. This significantly reduces duplication in mold development and production lines. Sharing molds and manufacturing processes reduces R&D, mold development, and production costs, while also streamlining supply chain management. The standardized design facilitates future replacement or upgrades of electronic control solutions, eliminating the need to replace the water tank 110 due to technology changes, improving product lifecycle management efficiency. Optimized hole layout (such as the placement of the air hole 160 near the bottom) ensures that both air pressure and the pump body can efficiently drive the water flow, avoiding the uneven water flow control issues associated with traditional solutions due to structural differences.

[0036] like Figure 1 As shown, in some embodiments, the switch assembly 400 includes a seal that is removably disposed on the air inlet 130 .

[0037] In these embodiments, the switch assembly 400 not only includes active control devices such as a solenoid valve and an electric valve, but also may employ a mechanical sealing structure to achieve on-off control of the air inlet 130. Specifically, the switch assembly 400 includes a sealing member, which may be a rubber stopper, a silicone cap, a plastic cover, or other elastic and sealing member.

[0038] The sealing member is removably disposed on the air inlet 130 and can be quickly installed and removed by plugging, twisting or snapping.

[0039] When the sealing member covers the air inlet 130 , a closed space is formed inside the water tank 110 , which is suitable for an air pump operation mode.

[0040] When the seal is removed, external air can enter the water tank 110 through the air inlet 130, so that the water tank 110 is in an open state, which is suitable for a water pump type or peristaltic pump type working mode.

[0041] This embodiment is particularly suitable for robot vacuums that require manual switching between different drive modes. Users can choose whether to install the seal according to their actual needs, thereby flexibly controlling the operation of the water tank 110. This eliminates the need for a complex control system, reduces manufacturing costs, and improves product versatility and maintainability.

[0042] For example, the seal is made of silicone, such as a PET seal sheet, which exhibits excellent elasticity and durability. An annular groove or threaded structure is provided around the air inlet 130 to engage the seal and ensure its sealing performance. The seal is also provided with a gripping protrusion or magnetic component to facilitate manual or mechanical operation.

[0043] For example, the seal adopts a sliding shielding plate, which is opened and closed by lateral movement.

[0044] like Figure 1 As shown, in some embodiments, the switch assembly 400 includes a valve member, which is disposed at the air inlet 130 and has a valve opening. Adjustment of the valve opening enables the air inlet 130 to be switched between at least a closed state and an open state.

[0045] In these embodiments, the valve member has an adjustable valve opening, and its flow area is changed by rotation, sliding or other mechanical transmission means.

[0046] For example, the valve opening can be adjusted between fully closed (0%), partially open (e.g., 50%), and fully open (100%). By controlling the valve opening, the speed of air pressure balance within the water tank 110 can be precisely controlled, thereby affecting the water flow rate and pressure, and meeting the water volume adjustment requirements in different cleaning scenarios.

[0047] For example, the valve is an electrically controlled ball valve or an electromagnetic proportional valve, which is automatically adjusted by the robot control system according to a preset program or sensor feedback signal. Alternatively, the valve body is provided with a scale mark to facilitate manual setting of the opening by the user.

[0048] In some embodiments, the valve member has only two adjustment levels: fully open and fully closed, to accommodate low-cost models.

[0049] like Figure 7As shown, in some embodiments, the valve member includes a valve plate, the valve plate having a sealing portion 420 and a connecting portion 410, the connecting portion 410 is connected to the water tank 110, the sealing portion 420 is configured as an elastic structure, and the sealing portion 420 is located on the inner side of the water tank 110 assembly. Under the action of the elastic restoring force of the sealing portion 420, the sealing portion 420 forms a dynamic sealing pair with the air inlet 130.

[0050] In these embodiments, the valve member employs a valve plate structure with an elastic sealing function to achieve automatic opening and closing control of the air inlet 130. The valve member includes a valve plate entirely made of a flexible material or a composite material. The valve plate includes a sealing portion 420 and a connecting portion 410.

[0051] The sealing portion 420 is configured as an elastic structure, such as silicone, rubber or an elastic polymer material. The connecting portion 410 is used to fix the valve plate to the water tank 110 body, which can be achieved by snapping, bonding, threading or integral molding; The sealing portion 420 is located on the inner side of the water tank 110 assembly, that is, the side facing the internal space of the water tank 110; under the action of the elastic restoring force of the sealing portion 420, it always has a tendency to move closer to the air inlet 130, thereby forming a dynamic sealing pair with the air inlet 130.

[0052] When the external control system applies external force through mechanical or pneumatic means, the sealing part 420 can overcome the elastic force and leave the air inlet 130, thereby opening the air inlet 130; when the external force is removed, under the action of the elastic restoring force, the sealing part 420 automatically resets and reseals the air inlet 130.

[0053] For example, the sealing portion 420 is a mushroom-shaped structure with an arc-shaped end, so as to fit tightly with the edge of the air inlet 130. An annular sealing groove is provided around the air inlet 130 to enhance the sealing effect; like Figure 1 As shown, in some embodiments, the water tank 110 assembly further includes a leak-proof member 180, which is disposed in an openable and closable manner at the water outlet 120. The opening and closing of the leak-proof member 180 can switch the water outlet 120 between an open state and a closed state.

[0054] In these embodiments, in order to prevent liquid leakage due to gravity or vibration when the water tank 110 is not in operation, the water tank 110 assembly also includes a leak-proof member 180, which is arranged at the water outlet 120 in an openable and closable manner to control the on and off state of the water outlet 120.

[0055] The leak-proof member 180 can be in various forms, such as an elastic sealing cover, a sliding baffle, a flip-up valve or a magnetic sealing device.

[0056] In the closed state, the leak-proof member 180 covers the water outlet 120, preventing liquid from flowing out. In the open state, the leak-proof member 180 moves away or deforms, opening the water outlet 120 and allowing liquid to pass through. The leak-proof member 180 can be opened and closed by a mechanical linkage mechanism, an electromagnetic drive device, air pressure control, or manual operation. In some embodiments, the opening and closing of the leakage prevention member 180 is linked to the switch assembly 400 (the air inlet 130 control component). For example, the leakage prevention member 180 is triggered to open only when the air inlet 130 is opened, thereby realizing a dual safety control mechanism.

[0057] In some embodiments, the leak-proof component 180 is configured as a pressure valve, which is disposed at the water outlet 120 . The pressure valve has an opening pressure. When the hydraulic pressure of the liquid in the water tank 110 reaches the opening pressure, the pressure valve is in an open state.

[0058] In these embodiments, in order to further improve the automation and safety of the water tank module 100, the leak-proof component 180 is specifically configured as a pressure valve structure for automatically controlling the opening and closing of the water outlet 120 according to the pressure changes of the liquid inside the water tank 110.

[0059] The leak-proof part 180 is a pressure valve, which is installed at the water outlet 120 of the water tank 110 assembly. The pressure valve has a preset opening pressure value. When the hydraulic pressure of the liquid in the water tank 110 exceeds the set value, the pressure valve automatically opens to allow the liquid to flow out.

[0060] When the hydraulic pressure of the liquid in the water tank 110 is lower than the set value, the pressure valve remains closed to prevent unexpected leakage of the liquid. The opening pressure of the pressure valve can be adjusted according to actual use requirements, for example, by replacing a spring with a different elasticity or adjusting the thickness of the diaphragm; In the air pump working mode, as gas is injected into the bottom of the water tank 110, the liquid surface pressure increases. When the pressure valve setting threshold is reached, the valve automatically opens and water begins to flow out.

[0061] In the water pump or peristaltic pump working mode, the pressure valve can be opened by the negative pressure difference generated by external suction.

[0062] In one specific embodiment, the pressure valve is a diaphragm-type structure, comprising a valve body, an elastic diaphragm, and a limit bracket. The elastic diaphragm normally closes the water outlet 120 and opens only when the water pressure overcomes its resilience. An adjustment screw is provided within the valve body, allowing the user or the system to adjust the opening pressure. The pressure valve is constructed from corrosion-resistant materials (such as ABS plastic, stainless steel, or fluororubber) to ensure long-term stability.

[0063] For example, the pressure valve may be a sequence valve, a relief valve, a pressure switching valve, or the like.

[0064] like Figure 1 As shown, in some embodiments, the water tank 110 has a water filling port 140, which is located at the top of the water tank 110. The water tank 110 assembly also includes a water tank plug 150, which is at least partially disposed through the water filling port 140 to close the water filling port 140.

[0065] In these embodiments, in order to facilitate the user to inject cleaning liquid (such as clean water or special cleaning agent) into the water tank 110, the water tank 110 is provided with a water filling port 140. The water filling port 140 is arranged in the top area of ​​the water tank 110, preferably located near the highest point of the water tank 110, so as to facilitate the filling of liquid and avoid air entrapment.

[0066] For example, the shape of the water filling port 140 may be circular, elliptical or polygonal, and its size is adapted to fit a standard bottle opening or liquid-filling equipment.

[0067] In order to prevent liquid leakage or impurities from entering the water tank 110 when not in use, the water tank 110 assembly further includes a water tank plug 150 for sealing the water inlet 140. The water tank plug 150 is at least partially disposed inside the water inlet 140 and is detachably connected by means of plugging, tightening, snapping, etc. In the closed state, the water tank plug 150 forms a good sealing fit with the water filling port 140 to prevent liquid from overflowing; in the open state, the user can add liquid to the water tank 110 or perform cleaning and maintenance.

[0068] In one embodiment, the water tank plug 150 is made of a flexible material such as silicone or rubber, exhibiting excellent elasticity and sealing properties. The exterior of the water tank plug 150 is provided with anti-slip grooves or raised structures for easy grip and operation. A sealing ring groove or threaded structure is provided around the water inlet 140 to enhance the sealing effect.

[0069] For example, the water tank plug 150 adopts a flip-top structure, one end of which is hinged to the water tank 110 body, and the other end of which can be opened and closed to cover the water filling port 140.

[0070] It should be noted that the leak-proof member 180 is used to prevent water from being squeezed out of the water outlet 120 of the water tank 110 when the water tank plug 150 is filled with water.

[0071] like Figure 1 As shown, in some embodiments, the water tank 110 includes a bottom shell 113, a middle shell 112 and a top cover 111 that are detachably connected from bottom to top, a water cavity 190 is defined between the bottom shell 113 and the middle shell 112, and an installation cavity 170 is defined between the middle shell 112 and the top cover 111.

[0072] In these embodiments, in order to improve the maintainability, cleaning convenience and rationality of the internal component layout of the water tank module 100, the water tank 110 adopts a modular layered structure composed of multiple parts.

[0073] Exemplarily, the bottom shell 113, the middle shell 112 and the top cover 111 are detachably connected by means of snaps, screws, sliding plugs or magnetic attraction.

[0074] The bottom shell 113 and the middle shell 112 enclose a water cavity 190 for storing cleaning liquid. The middle shell 112 and the top cover 111 enclose an installation cavity 170 for accommodating control components, sensors, valves and other functional modules of the water tank 110.

[0075] The middle shell 112 serves as an intermediate load-bearing and isolation structure, and is provided with through holes or interfaces for connecting functional components of the upper and lower parts, such as water outlet channels, gas pipelines, circuit wiring, etc.

[0076] For example, the bottom shell 113 is made of corrosion-resistant material with a smooth inner surface to facilitate liquid flow and drainage. The middle shell 112 is made of engineering plastic and has good mechanical strength and sealing performance. The top cover 111 is provided with operation buttons, indicator lights or wireless communication modules to facilitate user interaction. An inclined structure or guide groove is provided at the bottom of the water cavity 190 to ensure that the liquid can flow smoothly to the water outlet 120. A fixing bracket or positioning groove is provided in the installation cavity 170 for stable installation of functional components such as the switch assembly 400, pressure valve, liquid level sensor, and pumping module 200.

[0077] For example, the bottom shell 113 and the middle shell 112 are integrally formed, and only the top cover 111 is detachable, which simplifies the assembly process. A micro water pump or peristaltic pump drive device is integrated in the installation cavity 170 to achieve multi-functional integration.

[0078] It should be added that setting the water tank 110 as a split structure is also convenient for subsequent upgrades, as only one component needs to be replaced, thus reducing costs.

[0079] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, in some embodiments, the present application also provides a sweeping robot, comprising a water tank module 100 and a suction module 200 as described in any of the above embodiments, wherein the suction module 200 has an inlet and an outlet. When the suction module 200 is used to pump out a gaseous medium, the air inlet 130 is closed, and the outlet of the suction module 200 is connected to the air filling hole 160 of the water tank module 100 to pump the gaseous medium into the water tank 110. When the suction module 200 is used to pump out a liquid medium, the air inlet 130 is open, and the inlet is connected to the water outlet 120 of the water tank module 100 to pump out the liquid in the water tank 110.

[0080] In these embodiments, the extraction module 200 is used to extract gaseous or liquid media according to different cleaning requirements. The extraction module 200 has an inlet and an outlet. In different operating modes, the extraction module 200 can switch to air pump mode or water pump mode. The extraction module 200 is selectively connected to different functional holes of the water tank module 100 via pipes or interfaces.

[0081] Gas extraction mode (applicable to air pump type water discharge): In this mode, the extraction module 200 is used as an air pump; the switch assembly 400 controls the air inlet 130 to be in a closed state, so that a closed space is formed inside the water tank 110; the outlet of the extraction module 200 is connected to the inflation hole 160 of the water tank module 100; the extraction module 200 injects gas into the water tank 110 to increase the internal pressure of the water tank 110; when the pressure reaches the set value, the liquid is discharged from the water outlet 120 under the action of the air pressure.

[0082] Liquid pumping mode (applicable to water pump or peristaltic pump): In this mode, the pumping module 200 is used as a water pump or peristaltic pump; the switch assembly 400 controls the air inlet 130 to be in an open state, so that the water tank 110 maintains normal pressure; the inlet of the pumping module 200 is connected to the water outlet 120 of the water tank module 100; the pumping module 200 actively extracts the liquid in the water tank 110 and transports it to the clean area; at the same time, the air inlet 130 serves as an exhaust port to prevent poor water discharge due to negative pressure.

[0083] For example, the extraction module 200 can use an air pump or a water pump, which are respectively connected to the water tank 110 according to actual selection.

[0084] Since the water tank module 100 has the above-mentioned technical effects, the sweeping robot including the water tank module 100 should have the same technical effects, which will not be described in detail here.

[0085] It should be noted that the invention is not limited to a sweeping robot, but can also be a mopping robot or a cleaning robot with a combined sweeping and mopping function. By adopting the water tank module 100, the robot can flexibly adapt to different types of water supply control schemes, thereby improving the adaptability and market competitiveness of the product.

[0086] like Figure 4 and Figure 6 As shown, in some embodiments, the sweeping robot further includes a chassis module 300 , the chassis module 300 has a transfer channel and at least two water spraying ports, and the water tank module 100 is connected to the chassis module 300 .

[0087] When the extraction module 200 is used to extract the gas medium, one end of the transfer channel is connected to the water outlet 120, and the other end of the transfer channel is connected to all the water outlets. The outlet of the extraction module 200 is connected to the inflation hole 160 through the transfer tube, and the transfer tube is at least partially higher than the extraction module 200.

[0088] When the pumping module 200 is used to pump liquid media, one end of the transfer channel is connected to the water outlet 120, the other end of the transfer channel is connected to the inlet of the pumping module 200, and the outlet of the pumping module 200 is connected to all the water outlets.

[0089] In these embodiments, the chassis module 300 has a transfer channel and at least two water spray outlets. The transfer channel is used to guide liquid from the water tank module 100 to the water spray outlets. The multiple water spray outlets are distributed in different areas of the chassis, such as the front, middle, or left and right sides, to meet different floor cleaning needs.

[0090] Exemplarily, the water tank module 100 and the chassis module 300 are detachably connected via a sealing interface or a quick-connect connector.

[0091] Air pump water outlet mode: In this mode, the extraction module 200 is used as an air pump; the switch assembly 400 controls the air inlet 130 to be in a closed state, and the water tank 110 forms a closed space; the outlet of the extraction module 200 is connected to the inflation hole 160 of the water tank module 100 through a transfer tube; the transfer tube is at least partially higher than the extraction module 200 to prevent the liquid from flowing back into the extraction module 200; after the gas is injected into the water tank 110, it pushes the liquid into the transfer channel of the chassis module 300 through the water outlet 120; the transfer channel evenly distributes the liquid to multiple water nozzles, and finally sprays it onto the ground.

[0092] Water pump outlet mode: In this mode, the pumping module 200 is used as a water pump or peristaltic pump; the switch assembly 400 controls the air inlet 130 to be in an open state, and the water tank 110 maintains normal pressure; the inlet of the pumping module 200 is connected to the water outlet 120 of the water tank module 100, actively extracting the liquid in the water tank 110; the outlet of the pumping module 200 is connected to the transfer channel of the chassis module 300; the liquid is transported to multiple water nozzles through the transfer channel; the air inlet 130 is used as an exhaust port in this process to prevent poor water flow due to negative pressure.

[0093] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

[0094] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0095] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A water tank module, characterized in that: The water tank module comprises: A water tank assembly, the water tank assembly comprising a water tank having an air filling hole, an air inlet hole, and a water outlet hole, wherein the air filling hole extends toward the bottom of the water tank so as to be close to the bottom of the water tank; A switch assembly is provided at the air inlet and is configured to enable the air inlet to switch between a closed state and an open state.

2. The water tank module according to claim 1, characterized in that: The switch assembly includes a sealing member that is removably disposed on the air inlet.

3. The water tank module according to claim 1 or 2, characterized in that: The switch assembly includes a valve component, which is arranged at the air inlet. The valve component has a valve opening. Adjustment of the valve opening enables the air inlet to at least switch between the closed state and the open state.

4. The water tank module according to claim 3, characterized in that: The valve member comprises: The valve plate has a sealing portion and a connecting portion, the connecting portion is connected to the water tank, the sealing portion is configured as an elastic structure, the sealing portion is located on the inner side of the water tank assembly, and under the action of the elastic restoring force of the sealing portion, the sealing portion and the air inlet hole form a dynamic sealing pair.

5. The water tank module according to claim 1, characterized in that: The water tank assembly further comprises: A leak-proof component is provided at the water outlet in an openable and closable manner; wherein, the opening and closing of the leak-proof component can switch the water outlet between an open state and a closed state.

6. The water tank module according to claim 5, characterized in that: The anti-leakage component is configured as a pressure valve, which is disposed at the water outlet. The pressure valve has an opening pressure, and when the hydraulic pressure of the liquid in the water tank reaches the opening pressure, the pressure valve is in an open state.

7. The water tank module according to claim 6, characterized in that: The water tank has a water filling port, which is located at the top of the water tank. The water tank assembly also includes a water tank plug, which is at least partially inserted into the water filling port to close the water filling port.

8. The water tank module according to claim 7, characterized in that: The water tank comprises a bottom shell, a middle shell and a top cover which are detachably connected in sequence from bottom to top; a water cavity is defined between the bottom shell and the middle shell, and an installation cavity is defined between the middle shell and the top cover.

9. A sweeping robot, characterized in that: The sweeping robot comprises a water tank module and a drainage module according to any one of claims 1 to 8, wherein the drainage module has an inlet and an outlet; Wherein, when the extraction module is used to extract the gaseous medium, the air inlet is in a closed state, and the outlet of the extraction module is connected to the air filling hole of the water tank module to extract the gaseous medium into the water tank; When the pumping module is used to pump out liquid media, the air inlet is in an open state, and the inlet is connected to the water outlet of the water tank module to pump out the liquid in the water tank.

10. The sweeping robot according to claim 9, characterized in that: The sweeping robot further comprises: A chassis module, the chassis module having a transfer channel and at least two water spray ports, the water tank module being connected to the chassis module; When the extraction module is used to extract gaseous media, one end of the transfer channel is connected to the water outlet, and the other end of the transfer channel is connected to all the water spray ports. The outlet of the extraction module is connected to the inflation hole through a transfer tube, and at least a portion of the transfer tube is higher than the extraction module. When the pumping module is used to pump liquid media, one end of the transfer channel is connected to the water outlet, the other end of the transfer channel is connected to the inlet of the pumping module, and the outlet of the pumping module is connected to all the water outlets.

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