A water tank module and a sweeping robot

Abstract

This application provides a water tank module and a sweeping robot, relating to the field of robotics technology. The water tank module includes a water tank assembly and a switch assembly. The water tank assembly includes a water tank with an inflation port, an air inlet, and a water outlet. The inflation port extends towards the bottom of the water tank, making it close to the bottom. The switch assembly is located at the air inlet and configured to allow the air inlet to switch between a closed and an open state. This application improves the universal compatibility of water tanks, meeting the usage requirements of air pump, water pump, and peristaltic pump type electrically controlled water tanks, sharing a single production mold and manufacturing process, effectively reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of robot technology, and in particular to a water tank module and a sweeping robot. Background Technology

[0002] With the widespread adoption of smart homes, robotic vacuum cleaners have become an essential cleaning tool for modern families. Among these components, the electronically controlled water tank, as the core component enabling the mopping function, directly impacts the product's market competitiveness and user experience through its performance and cost. Typically, robotic vacuum cleaners on the market employ three main electronically controlled water tank solutions: air pump type, water pump type, and peristaltic pump type. However, these three types of water tanks are not universally compatible, requiring customization for each type and hindering cost reduction. Utility Model Content

[0003] In view of this, the purpose of this utility model 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 usage requirements of air pump type, water pump type and peristaltic pump type electrically controlled water tank, share a set of production molds and manufacturing processes, and effectively reduce production costs.

[0004] This utility model provides the following technical solution:

[0005] In a first aspect, embodiments of this application provide a water tank module, the water tank module comprising:

[0006] A water tank assembly, comprising a water tank having an inflation port, an air inlet, and a water outlet, wherein the inflation port extends toward the bottom of the water tank such that the inflation port is close to the bottom of the water tank;

[0007] A switch assembly is disposed at the air inlet and configured to allow the air inlet to switch between a closed state and an open state.

[0008] In some embodiments of the first aspect, the switch assembly includes a seal removably disposed at the air inlet.

[0009] In some embodiments of the first aspect, the switching assembly includes a valve disposed at the air inlet, the valve having a valve opening degree that is adjustable such that the air inlet can be switched between at least a closed state and an open state.

[0010] In some embodiments of the first aspect, the valve includes:

[0011] The valve plate has a sealing part and a connecting part. The connecting part is connected to the water tank. The sealing part is configured as an elastic structure and is located inside the water tank assembly. Under the action of the elastic restoring force of the sealing part, the sealing part and the air inlet form a dynamic sealing pair.

[0012] In some embodiments of the first aspect, the water tank assembly further includes:

[0013] A leak-proof component is provided on the water outlet in an openable and closable manner; wherein the opening and closing of the leak-proof component enables the water outlet to switch between an open state and a closed state.

[0014] In some embodiments of the first aspect, the leak-proof component is configured as a pressure valve, which is disposed at the water outlet and has an opening pressure. When the hydraulic pressure of the liquid in the water tank reaches the opening pressure, the pressure valve is in an open state.

[0015] In some embodiments of the first aspect, the water tank has a water inlet located at the top of the water tank, and the water tank assembly further includes a water tank plug that at least partially extends through the water inlet to close the water inlet.

[0016] 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, with a water cavity defined between the bottom shell and the middle shell, and an installation cavity defined between the middle shell and the top cover.

[0017] Secondly, this application also provides a sweeping robot, which includes a water tank module and a pumping module as described in any of the above embodiments, wherein the pumping module has an inlet and an outlet;

[0018] In the case where the extraction module is used to extract gaseous medium, the air inlet is closed, and the outlet of the extraction module is connected to the air inlet of the water tank module to extract the gaseous medium into the water tank.

[0019] When the pumping module is used to pump out liquid media, the air inlet is in the open state, and the inlet and the water outlet of the water tank module are connected to pump out the liquid in the water tank.

[0020] In some embodiments of the second aspect, the robotic vacuum cleaner further includes:

[0021] A chassis module having a transfer channel and at least two water spray nozzles, wherein the water tank module is connected to the chassis module;

[0022] When the pumping module is used to pump out gaseous media, one end of the transfer channel is connected to the water outlet, the other end of the transfer channel is connected to all the water spray nozzles, and the outlet of the pumping module is connected to the air inlet through the transfer pipe. The transfer pipe is at least partially higher than the pumping module.

[0023] When the pumping module is used to pump out 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 spray nozzles.

[0024] The embodiments of this utility model have the following advantages:

[0025] The water tank module provided by this invention features an integrated design that allows the same tank structure to be compatible with three electronic control schemes: air pump, water pump, and peristaltic pump. The air inlet extends near the bottom of the tank, facilitating direct air inflation and pressurization to the bottom of the tank in the air pump scheme, propelling water out of the outlet. The air inlet is controlled by a switching component (such as a solenoid valve or mechanical valve). In the air pump scheme, the air inlet is closed to maintain air pressure; in the water pump or peristaltic pump scheme, the air inlet is open to balance internal and external air pressure, ensuring stable water pumping. The outlet can be connected to different types of pumps (water pump / peristaltic pump) or used directly as the outlet of the air pump, enabling controllable water output.

[0026] The air intake port status can be adjusted automatically or manually depending on the type of electronic control. For example, in air pump mode, the air intake port is closed to seal the pressurization; in other modes, the air intake port is opened to prevent negative pressure from hindering the pump's operation.

[0027] Therefore, by using a single water tank structure to accommodate three electrical control schemes, there is no need to customize separate water tanks for different pump types, significantly reducing redundant investment in mold development and production lines. Sharing molds and manufacturing processes reduces R&D, mold making, and production costs, while simplifying supply chain management. The standardized design facilitates future replacement or upgrades of electrical control schemes; users do not need to replace the water tank due to changes in technology, improving product lifecycle management efficiency. Optimized hole layout (e.g., air inlet near the bottom) ensures that air pressure or the pump body can efficiently drive water flow, avoiding uneven water volume control problems caused by structural differences in traditional solutions.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 The diagram shows a structural schematic of a water tank module according to an embodiment of the present invention from one perspective.

[0031] Figure 2 This diagram shows a structural schematic of a sweeping robot according to an embodiment of the present invention from one perspective.

[0032] Figure 3 This diagram shows a structural schematic of a sweeping robot provided in one embodiment of the present invention from another perspective;

[0033] Figure 4 This diagram illustrates a structural schematic of a sweeping robot according to another embodiment of the present invention.

[0034] Figure 5 This diagram shows a structural schematic of a sweeping robot according to another embodiment of the present invention from one perspective;

[0035] Figure 6 This invention provides a structural schematic diagram of a sweeping robot from another perspective, according to another embodiment of the present invention.

[0036] Figure 7 A schematic diagram of a switch assembly provided in another embodiment of the present invention is shown from one perspective.

[0037] Explanation of key component symbols:

[0038] 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-Air filling hole; 170-Mounting cavity; 180-Leak-proof component; 190-Water cavity; 200-Extraction module; 300-Chassis module; 400-Switch assembly; 410-Connection part; 420-Sealing part. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can 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 utility model according to the specific circumstances.

[0042] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] In related technologies, with the popularization of smart homes, robotic vacuum cleaners have become an important tool for cleaning modern households. Among them, the electronically controlled water tank 110, as the core component enabling the mopping function of a robotic vacuum cleaner, directly affects the product's market competitiveness and user experience in terms of performance and cost. Typically, robotic vacuum cleaners on the market mainly use three types of electronically controlled water tank 110 solutions: air pump type, water pump type, and peristaltic pump type. However, these three types of water tanks 110 are not universally compatible, requiring customization for each type, which is detrimental to reducing production costs.

[0045] As shown in Figure 1, to solve the above-mentioned technical problems, this application provides a water tank module 100. The water tank module 100 includes a water tank 110 assembly and a switch assembly 400. The water tank 110 assembly includes a water tank 110, which has an inflation port 160, an air inlet 130, and a water outlet 120. The inflation port 160 extends towards the bottom of the water tank 110, making the inflation port 160 close to the bottom of the water tank 110. The switch assembly 400 is disposed at the air inlet 130 and configured to allow the air inlet 130 to switch between a closed state and an open state.

[0046] In these embodiments, the present invention provides a water tank module 100 for a robotic vacuum cleaner, compatible with three operating modes of electrically controlled water tanks 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:

[0047] The water tank 110 assembly includes a universal water tank 110 having an inflation port 160, an air inlet 130, and a water outlet 120. The inflation port 160 extends towards the bottom of the water tank 110, with its outlet end close to the bottom, thereby effectively pushing the liquid inside the water tank 110 out through the water outlet 120 under air pressure. The air inlet 130 is located on the upper part or side of the water tank 110 and is used to control the pressure balance of an external air source entering the water tank 110. The water outlet 120 is connected to a mop module or a floor cleaning module for discharging cleaning fluid.

[0048] Furthermore, a switch assembly 400 is disposed at the air inlet 130 to control the on / off state of the air inlet 130. This switch assembly 400 includes, but is not limited to, solenoid valves, mechanical valves, or electric valves, which can be automatically or manually controlled for opening and closing. When the switch assembly 400 is in the closed state, the air inlet 130 is sealed, forming a closed space inside the water tank 110. When the switch assembly 400 is in the open state, external air enters the water tank 110 through the air inlet 130, breaking the pressure difference and stopping the liquid outflow. By controlling the opening and closing of the switch assembly 400, precise control of the liquid discharge process within the water tank 110 can be achieved, suitable for operational needs under different driving methods.

[0049] The core innovation of this utility model lies in its unified water tank 110 structural design, which achieves compatibility with three working modes: air pump, water pump, and peristaltic pump.

[0050] Air pump working mode: When the switch assembly 400 is turned off (air inlet 130 is closed), gas is injected into the bottom of the water tank 110 through the air inlet 160, and the pressure difference is used to push the liquid out from the outlet 120.

[0051] Water pump or peristaltic pump working mode: Turn on the switch assembly 400 (air inlet 130 opens), and the water pump directly draws liquid from the water tank 110 for spraying.

[0052] Since all of the above modes can be implemented in the same water tank 110 structure, there is no need to design molds and manufacturing processes separately for each drive mode, which significantly reduces production costs and improves the market adaptability of the product.

[0053] For example, the water tank 110 is made of one-piece molded plastic and has multiple positioning slots (not shown) on its surface for easy and quick installation with the chassis module 300 of the sweeping robot. For example, the switch assembly 400 is a miniature solenoid valve with fast response and can be programmed and controlled by the robot's main control system to achieve intelligent adjustment of water volume.

[0054] In addition, the water tank 110 assembly also includes a level sensor to detect the remaining water in the water tank 110 and feed the signal back to the control system so that a prompt is issued or the water dispensing operation is automatically stopped when water is insufficient.

[0055] For example, the switch assembly 400 can also be a mechanical slider valve, which can be switched manually by the user;

[0056] For example, the position of the air inlet 160 can be adjusted in height according to different driving methods;

[0057] In other words, the integrated design of the water tank module 100 allows the same water tank 110 structure to be compatible with three electronic control schemes: air pump, water pump, and peristaltic pump. The air inlet 160 extends near the bottom of the water tank 110, facilitating direct air inflation and pressurization of the bottom of the water tank 110 in the air pump scheme, propelling water out through the outlet 120. The air inlet 130 is controlled by a switching assembly 400 (such as a solenoid valve or mechanical valve). In the air pump scheme, the air inlet 130 is closed to maintain air pressure; in the water pump or peristaltic pump scheme, the air inlet 130 is open to balance internal and external air pressure, ensuring stable water pumping. The outlet 120 can be connected to different types of pumps (water pump / peristaltic pump) or directly used as the outlet of the air pump, enabling controllable water output.

[0058] The air inlet 130 is automatically or manually adjusted depending on the type of electronic control. For example, in air pump mode, the air inlet 130 is closed to seal the pressurization; in other modes, the air inlet 130 is opened to prevent negative pressure from hindering the operation of the pump.

[0059] Therefore, by using a single water tank 110 structure that is compatible with three electronic control schemes, there is no need to customize separate water tanks 110 for different pump types, significantly reducing redundant investment in mold development and production lines. Sharing molds and manufacturing processes reduces R&D, mold making, and production costs, while simplifying supply chain management. The standardized design facilitates future replacement or upgrades of electronic control schemes; users do not need to replace the water tank 110 due to changes in technical routes, improving product lifecycle management efficiency. Optimized hole layout (e.g., the air inlet 160 is located near the bottom) ensures that air pressure or the pump body can efficiently drive water flow, avoiding the uneven water volume control problems caused by structural differences in traditional solutions.

[0060] like Figure 1 As shown, in some embodiments, the switch assembly 400 includes a seal that is removably disposed in the air inlet 130.

[0061] In these embodiments, the switching assembly 400 includes not only active control devices such as solenoid valves and electric valves, but also a mechanical sealing structure to control the opening and closing of the air inlet 130. Specifically, the switching assembly 400 includes a seal, which can be a rubber plug, silicone cap, plastic cap, or other component with elasticity and sealing properties.

[0062] The seal is removably mounted on the air inlet 130 and can be quickly installed and removed by means of plugging, twisting or snapping.

[0063] When the seal covers the air inlet 130, a closed space is formed inside the water tank 110, which is suitable for the air pump working mode.

[0064] When the seal is removed, external air can enter the water tank 110 through the air inlet 130, making the water tank 110 open, which is suitable for water pump or peristaltic pump operation modes.

[0065] This implementation method is particularly suitable for robotic vacuum cleaners that require manual switching between different drive modes. Users can choose whether to install seals 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 the product's versatility and maintainability.

[0066] Example: The seal is made of silicone material, such as PET sealing sheets, which has good elasticity and durability. The air inlet 130 is surrounded by an annular groove or threaded structure to mate with the seal and ensure its sealing performance; the seal is provided with protrusions or magnetic parts for easy gripping, facilitating manual or mechanical operation.

[0067] For example, the seal uses a sliding baffle that opens and closes by moving laterally.

[0068] like Figure 1 As shown, in some embodiments, the switching assembly 400 includes a valve disposed in the air inlet 130, the valve having a valve opening degree, the adjustment of the valve opening degree enabling the air inlet 130 to switch between at least a closed state and an open state.

[0069] In these embodiments, the valve has an adjustable valve opening, and its flow area is changed by rotation, sliding or other mechanical means.

[0070] 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, precise control of the air pressure balancing speed inside the water tank 110 can be achieved, thereby affecting the water flow rate and pressure, suitable for water volume adjustment needs in different cleaning scenarios.

[0071] For example, the valve is an electrically adjustable ball valve or a solenoid proportional valve, which is automatically adjusted by the robot control system according to a preset program or sensor feedback signals. Alternatively, the valve body has scale markings to facilitate manual setting of the opening degree by the user.

[0072] In some embodiments, the valve has only two adjustment positions: fully open and fully closed, to accommodate low-cost models.

[0073] like Figure 7 As shown, in some embodiments, the valve includes a 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 is located inside the water tank 110 assembly. Under the action of the elastic restoring force of the sealing portion 420, the sealing portion 420 and the air inlet 130 form a dynamic sealing pair.

[0074] In these embodiments, the valve employs a valve plate structure with a resilient sealing function to achieve automatic opening and closing control of the air inlet 130. The valve includes a valve plate, which is entirely made of flexible material or composite material. The valve plate includes a sealing portion 420 and a connecting portion 410.

[0075] The sealing part 420 is configured as an elastic structure, such as silicone, rubber, or a flexible polymer material. The connecting part 410 is used to fix the valve plate to the water tank 110 body, which can be achieved by means of snap-fit, adhesive, thread, or integral molding.

[0076] The sealing part 420 is located inside the water tank 110 assembly, that is, on the side facing the internal space of the water tank 110. Under the action of the elastic restoring force of the sealing part 420, it always tends to move towards the air inlet 130, thereby forming a dynamic sealing pair with the air inlet 130.

[0077] When the external control system applies external force through mechanical or pneumatic means, the sealing part 420 can overcome the elastic force and move away from the air inlet 130, thereby opening the air inlet 130; when the external force is removed, under the action of elastic restoring force, the sealing part 420 automatically resets and reseals the air inlet 130.

[0078] For example, the sealing part 420 has a mushroom-shaped structure with rounded ends to facilitate a tight fit with the edge of the air inlet 130. An annular sealing groove is provided around the air inlet 130 to enhance the sealing effect;

[0079] like Figure 1 As shown, in some embodiments, the water tank 110 assembly further includes a leak-proof component 180, which is disposed on the water outlet 120 in an openable and closable manner. The opening and closing of the leak-proof component 180 allows the water outlet 120 to switch between an open state and a closed state.

[0080] In these embodiments, in order to prevent liquid leakage caused by gravity or vibration when the water tank 110 is not in operation, the water tank 110 assembly also includes a leak-proof component 180, which is provided at the water outlet 120 in an openable and closable manner to control the on / off state of the water outlet 120.

[0081] Leak-proof component 180 can take many forms, such as resilient sealing cap, sliding baffle, flip valve or magnetic sealing device.

[0082] In the closed state, the leak-proof component 180 covers the water outlet 120, preventing liquid from flowing out. In the open state, the leak-proof component 180 moves away or deforms, opening the water outlet 120 and allowing liquid to pass through. The opening and closing of the leak-proof component 180 can be achieved through a mechanical linkage mechanism, an electromagnetic drive device, pneumatic control, or manual operation.

[0083] In some embodiments, the opening and closing of the leak-proof component 180 is linked to the switch assembly 400 (the air inlet 130 control component). For example, the leak-proof component 180 is only triggered to open when the air inlet 130 is open, thereby realizing a dual safety control mechanism.

[0084] In some embodiments, the leak-proof component 180 is configured as a pressure valve, which is located at the water outlet 120. The pressure valve has an opening pressure, and when the hydraulic pressure of the liquid in the water tank 110 reaches the opening pressure, the pressure valve is in the open state.

[0085] 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, which is used to automatically control the opening and closing of the water outlet 120 according to the pressure change of the liquid inside the water tank 110.

[0086] Leak-proof component 180 is a pressure valve, 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 preset value, the pressure valve automatically opens, allowing the liquid to flow out.

[0087] When the hydraulic pressure of the liquid in water tank 110 is lower than the set value, the pressure valve remains closed to prevent unexpected liquid leakage. The opening pressure of the pressure valve can be adjusted according to actual usage requirements, for example, by replacing springs with different elasticity or adjusting the diaphragm thickness.

[0088] In the air pump operation mode, as gas is injected into the bottom of the water tank 110, the liquid pressure rises. When the pressure valve reaches the set threshold, the valve automatically opens and water begins to flow out.

[0089] In water pump or peristaltic pump operation mode, the pressure valve can be opened by the negative pressure difference generated by external suction.

[0090] In one specific embodiment, the pressure valve is a diaphragm type structure, including a valve body, a resilient diaphragm, and a limiting bracket. The resilient diaphragm normally closes the outlet orifice 120, opening only when the water pressure overcomes its rebound force. An adjusting bolt is provided within the valve body, allowing the user or system to adjust the opening pressure value. The pressure valve is made of corrosion-resistant materials (such as ABS plastic, stainless steel, or fluororubber) to ensure long-term stability.

[0091] For example, a pressure valve can be a sequence valve, a relief valve, or a pressure switching valve, etc.

[0092] like Figure 1 As shown, in some embodiments, the water tank 110 has a water inlet 140 located at the top of the water tank 110, and the water tank 110 assembly also includes a water tank plug 150, which at least partially extends through the water inlet 140 to close the water inlet 140.

[0093] 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 inlet 140, which is located in the top area of ​​the water tank 110, preferably near the highest point of the water tank 110, so as to facilitate liquid filling and avoid air retention.

[0094] For example, the water inlet 140 may be circular, elliptical or polygonal in shape, and its size may be adapted to a standard bottle opening or dispensing device.

[0095] To prevent liquid leakage or impurities from entering the water tank 110 when it is not in use, the water tank 110 assembly also includes a water tank plug 150 for sealing the water inlet 140. The water tank plug 150 is at least partially inserted into the water inlet 140 and is detachably connected by means of insertion, tightening, or snapping.

[0096] When closed, the water tank plug 150 and the water inlet 140 form a good seal to prevent liquid from overflowing; when open, the user can add liquid to the water tank 110 or perform cleaning and maintenance.

[0097] In one embodiment, the water tank stopper 150 is made of a flexible material such as silicone or rubber, providing good elasticity and sealing performance. The water tank stopper 150 has anti-slip textures or raised structures on its exterior for easy gripping and operation. A sealing ring groove or threaded structure is provided around the water inlet 140 to enhance the sealing effect.

[0098] For example, the water tank plug 150 adopts a flip-top structure, with one end hinged to the water tank 110 body and the other end able to open and close to cover the water inlet 140.

[0099] It should be noted that the leak-proof part 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.

[0100] 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.

[0101] In these embodiments, in order to improve the maintainability, ease of cleaning 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 components.

[0102] For example, 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.

[0103] 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 functional modules of the water tank 110, such as control components, sensors, and valves.

[0104] The middle shell 112 serves as the intermediate load-bearing and isolation structure, and is provided with through holes or interfaces for connecting the functional components of the upper and lower parts, such as water outlet channels, gas pipelines, and electrical wiring.

[0105] 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, possessing good mechanical strength and sealing performance. The top cover 111 is equipped with operation buttons, indicator lights, or a wireless communication module for user convenience. The bottom of the water cavity 190 has an inclined structure or guide groove to ensure that the liquid can flow smoothly to the outlet hole 120. The mounting cavity 170 is equipped with a fixing bracket or positioning groove for stable installation of functional components such as the switch assembly 400, pressure valve, liquid level sensor, and pumping module 200.

[0106] For example, the bottom shell 113 and the middle shell 112 are integrally formed structures, and only the top cover 111 is detachable, simplifying the assembly process. A micro water pump or peristaltic pump drive device is integrated within the mounting cavity 170, achieving multi-functional integration.

[0107] It should be added that setting the water tank 110 as a split structure also facilitates future upgrades and replacements, requiring only the replacement of one component, thus reducing costs.

[0108] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, this application also provides a sweeping robot, which includes a water tank module 100 and a suction module 200 as described in any of the above embodiments. The suction module 200 has an inlet and an outlet. When the suction module 200 is used to suction gaseous media, the air inlet 130 is closed, and the outlet of the suction module 200 is connected to the air inlet 160 of the water tank module 100 to pump gaseous media into the water tank 110. When the suction module 200 is used to suction liquid media, the air inlet 130 is open, and the inlet is connected to the water outlet 120 of the water tank module 100 to pump liquid from the water tank 110.

[0109] 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 be switched to air pump mode or water pump mode; the extraction module 200 is selectively connected to different functional ports of the water tank module 100 through pipelines or interfaces.

[0110] Gas extraction mode (suitable for air pump-type water outlet):

[0111] In this mode, the pumping module 200 is used as an air pump; the switch assembly 400 controls the air inlet 130 to be closed, so that a sealed space is formed inside the water tank 110; the outlet of the pumping module 200 is connected to the air inlet 160 of the water tank module 100; the pumping module 200 injects gas into the water tank 110, so that the internal pressure of the water tank 110 increases; when the pressure reaches the set value, the liquid is discharged from the outlet 120 under the action of air pressure.

[0112] Liquid extraction mode (suitable for water pump or peristaltic pump type water output):

[0113] In this mode, the extraction module 200 is used as a water pump or peristaltic pump; the switch assembly 400 controls the air inlet 130 to be in the open state, so that the water tank 110 is kept at normal pressure; the inlet of the extraction module 200 is connected to the water outlet 120 of the water tank module 100; the extraction module 200 actively extracts the liquid in the water tank 110 and delivers it to the cleaning area; at the same time, the air inlet 130 serves as an exhaust port to prevent water flow obstruction due to negative pressure.

[0114] For example, the pumping module 200 can be an air pump or a water pump, which can be connected to the water tank 110 respectively, depending on the actual situation.

[0115] Since the water tank module 100 has the aforementioned technical effects, the sweeping robot including the water tank module 100 should have the same technical effects, which will not be elaborated here.

[0116] It should be noted that this is not limited to sweeping robots, but can also include mopping robots or cleaning robots with combined sweeping and mopping functions. By adopting the aforementioned water tank module 100, the robot can flexibly adapt to different types of water supply control schemes, enhancing the product's adaptability and market competitiveness.

[0117] like Figure 4 and Figure 6 As shown, in some embodiments, the robot vacuum cleaner also includes a chassis module 300, which has a transfer channel and at least two water spray nozzles, and the water tank module 100 is connected to the chassis module 300.

[0118] When the pumping module 200 is used to pump out gaseous media, 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 spray nozzles. The outlet of the pumping module 200 is connected to the air inlet 160 through the transfer pipe, and the transfer pipe is at least partially higher than the pumping module 200.

[0119] When the pumping module 200 is used to pump out 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 spray nozzles.

[0120] In these embodiments, the chassis module 300 has a transfer channel and at least two spray nozzles. The transfer channel is used to guide liquid from the water tank module 100 to the spray nozzles. Multiple spray nozzles are distributed in different areas of the chassis, such as the front, middle, or left and right sides, to accommodate different floor cleaning needs.

[0121] For example, the water tank module 100 and the chassis module 300 are detachably connected through a sealed interface or a quick-connect fitting.

[0122] Air pump water dispensing mode:

[0123] In this mode, the exhaust module 200 is used as an air pump; the switch assembly 400 controls the air inlet 130 to be closed, and the water tank 110 forms a sealed space; the outlet of the exhaust module 200 is connected to the air inlet 160 of the water tank module 100 through an adapter pipe; the adapter pipe is at least partially higher than the exhaust module 200 to prevent liquid backflow into the exhaust module 200; after the gas is injected into the water tank 110, it pushes the liquid through the water outlet 120 into the transfer channel of the chassis module 300; the transfer channel evenly distributes the liquid to multiple spray nozzles, and finally sprays it onto the ground.

[0124] Pump-type water outlet mode:

[0125] 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 the open state, and the water tank 110 is kept at normal pressure; the inlet of the pumping module 200 is connected to the water outlet 120 of the water tank module 100, actively pumping liquid from 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 spray nozzles through the transfer channel; the air inlet 130 is used as an exhaust port in this process to prevent water flow obstruction due to negative pressure.

[0126] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0127] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0128] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A water tank module, characterized by, The water tank module includes: A water tank assembly, comprising a water tank having an inflation port, an air inlet, and a water outlet, wherein the inflation port extends toward the bottom of the water tank such that the inflation port is close to the bottom of the water tank; A switch assembly is disposed at the air inlet and configured to allow 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 seal that is removably disposed in the air inlet.

3. The water tank module according to claim 1 or 2, characterized in that The switching assembly includes a valve disposed at the air inlet, the valve having a valve opening degree, the adjustment of the valve opening degree enabling the air inlet to switch between at least a closed state and an open state.

4. The water tank module according to claim 3, characterized in that The valve includes: The valve plate has a sealing part and a connecting part. The connecting part is connected to the water tank. The sealing part is configured as an elastic structure and is located inside the water tank assembly. Under the action of the elastic restoring force of the sealing part, the sealing part and the air inlet form a dynamic sealing pair.

5. The water tank module of claim 1, wherein, The water tank assembly also includes: A leak-proof component is provided on the water outlet in an openable and closable manner; wherein the opening and closing of the leak-proof component enables the water outlet to switch between an open state and a closed state.

6. The water tank module according to claim 5, characterized in that The leak-proof component is configured as a pressure valve, which is located 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 the open state.

7. The water tank module according to claim 6, characterized in that The water tank has a water inlet located at the top of the water tank. The water tank assembly also includes a water tank plug, which at least partially extends through the water inlet to seal it.

8. The water tank module according to claim 7, characterized in that 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.

9. A robot vacuum cleaner, characterized in that The sweeping robot includes a water tank module and a pumping module as described in any one of claims 1 to 8, wherein the pumping module has an inlet and an outlet; In the case where the extraction module is used to extract gaseous medium, the air inlet is closed, and the outlet of the extraction module is connected to the air inlet 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 the open state, and the inlet and the water outlet of the water tank module are connected to pump out the liquid in the water tank.

10. The robotic vacuum cleaner of claim 9, wherein, The robotic vacuum cleaner also includes: A chassis module having a transfer channel and at least two water spray nozzles, wherein the water tank module is connected to the chassis module; When the pumping module is used to pump out gaseous media, one end of the transfer channel is connected to the water outlet, the other end of the transfer channel is connected to all the water spray nozzles, and the outlet of the pumping module is connected to the air inlet through the transfer pipe. The transfer pipe is at least partially higher than the pumping module. In the case that the pumping module is used for pumping liquid medium, one end of the adapter channel is communicated with the water outlet hole, the other end of the adapter channel is communicated with the inlet of the pumping module, and the outlet of the pumping module is communicated with all the water injection holes.

Images