Multi-cabin convenient robot dish-washing machine

Abstract

The invention relates to a multi-cabin convenient robot dish-washing machine which is provided with at least two independent dish-washing cabins, cabin water inlets of all the dish-washing cabins are connected with the same water containing and distributing tank, and water injection of one or more dish-washing cabins can be controlled; cabin water return ports of all the dish washing cabins are connected with the same circulating water return treatment unit and can control a water source of one cabin bottom groove to flow into a circulating pipeline, cabin water drainage ports of all the dish washing cabins are connected with the same double-drainage-valve unit, and each cabin water drainage port is provided with an independent drainage inlet valve assembly and can independently control the drainage opening and closing state of the corresponding dish washing cabin. Each dish washing cabin is provided with an independent one-inlet and multi-outlet diverter valve, and a plurality of water outlets of each one-inlet and multi-outlet diverter valve are connected with different injection pipes in the cabin respectively. The working limitation of a traditional single-compartment dish-washing machine is broken through, the multiple effects of compartment differentiated washing, single-compartment precise washing control and multi-compartment asynchronous cooperation are achieved, and the suitability of dish-washing scenes, the washing efficiency and the water-saving and energy-saving performance are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of dishwashers, and more specifically, to a multi-compartment convenient robotic dishwasher. Background Technology

[0002] With the accelerating pace of life and the increasing demand for intelligent household chores, dishwashers have gradually become an essential home appliance for families, small restaurants, and other similar settings. The market's requirements for dishwashers' adaptability, cleaning efficiency, and water-saving and energy-efficient performance continue to rise.

[0003] However, most mainstream dishwashers currently on the market adopt a single-compartment integrated design, which has many limitations in terms of adaptability and efficiency: on the one hand, the single-compartment structure cannot achieve differentiated cleaning of different types of tableware. When washing mixed items, stubborn oily tableware may not be thoroughly cleaned, and fragile tableware may be damaged due to high-pressure rinsing, resulting in insufficient adaptability; on the other hand, for scenarios involving the washing of a small number of tableware, single-compartment dishwashers need to start the entire compartment water filling, heating, and full spray pipe workflow, resulting in serious waste of water resources, detergent, and energy. Moreover, single-compartment dishwashers adopt a serial working mode of water filling-washing-draining, which is inefficient and cannot achieve parallel processing of multiple batches of tableware.

[0004] The above problems are worth solving. Summary of the Invention

[0005] To overcome the problems of existing single-compartment integrated dishwashers, such as the inability to perform differentiated cleaning, waste of resources in cleaning small quantities of tableware, and low efficiency in serial operation, this invention provides a multi-compartment convenient robotic dishwasher.

[0006] The technical solution of this invention is as follows:

[0007] A multi-compartment portable robotic dishwasher includes a dishwasher and a mobile base. The dishwasher's compartments are equipped with spray pipes. The dishwasher has at least two independent washing compartments, a water receiving and distribution tank, a circulating water treatment unit, a pressure regulating pump unit, and a dual drain valve unit. The water inlets of all washing compartments are connected to the same water receiving and distribution tank. The water receiving and distribution tank is equipped with a water inlet solenoid valve for each washing compartment to control the water supply to one or more of the compartments. The water return inlets of all washing compartments are connected to the same circulating water treatment unit, which is equipped with a reversing valve assembly to control the inflow of water from one of the compartment's bottom tanks. The system includes a circulation pipeline, and the circulating water treatment unit heats the water source and adds detergent. The circulating water treatment unit is connected to the input end of the pressure regulating pump unit. The drain outlets of all the washing compartments are connected to the same dual drain valve unit. The dual drain valve unit has an independent drain inlet valve assembly for each compartment drain outlet, used to individually control the drain opening and closing status of the corresponding washing compartment. Each washing compartment is equipped with an independent one-inlet-multiple-outlet diverter valve. The inlets of the one-inlet-multiple-outlet diverter valves of different washing compartments are connected to the output end of the same pressure regulating pump unit. Several outlets of each one-inlet-multiple-outlet diverter valve are connected to different spray pipes inside the compartment through different diverter pipes.

[0008] Preferably, each branch water pipe is connected to at least two spray pipes.

[0009] As a preferred embodiment of the present invention, the circulating water treatment unit includes a heating element, a brine tank, and a detergent tank. The heating element includes a heating tank and a heating tube. One end of the heating tube is connected to the valve body output port of the reversing valve assembly, and the other end is connected to the pressure regulating water pump unit. The heating tank is used to heat the water source in the heating tube. The heating tube is provided with two liquid input pipes, which are respectively connected to the brine tank and the detergent tank. Each liquid input pipe is equipped with a dispensing switch solenoid valve at its port to control the opening and closing state of the liquid input pipe.

[0010] Furthermore, the reversing valve assembly includes a reversing valve body and a reversing valve drive. The reversing valve body includes a horizontal pipe section and two vertical pipe sections perpendicular to the horizontal pipe section. One of the vertical pipe sections is connected to the return water inlet of a washing compartment, and the other vertical pipe section serves as the valve body output pipe section connected to the input end of the heating pipe of the heating element. One end of the horizontal pipe section is connected to the return water inlet of another washing compartment, and the other end of the horizontal pipe section is equipped with the reversing valve drive.

[0011] Furthermore, the reversing valve drive includes a valve drive motor, an eccentric wheel, a crankshaft, a push-pull rod, and a sealing plug. The output shaft of the valve drive motor is connected to the bottom center limit of the eccentric wheel. An eccentric rod is provided on the top edge of the eccentric wheel. One end of the crankshaft is sleeved with the eccentric rod, and the other end of the crankshaft is hinged to one end of the push-pull rod. The other end of the push-pull rod is connected to the sealing plug.

[0012] As a preferred embodiment of the present invention, the pressure regulating water pump unit includes a variable frequency stepless speed regulating motor, a coupling, and a pressure regulating water pump body. The pressure regulating water pump body is provided with a first helical gear and a second helical gear with opposite rotation directions and meshing with each other. The pressure regulating water pump body has a first pump body inlet and outlet on one side and a second pump body inlet and outlet with a cavity on the opposite side. The first pump body inlet and outlet are connected to the water treatment unit, and the second pump body inlet and outlet are connected to the inlet of the one-inlet-multiple-outlet diversion valve.

[0013] As a preferred embodiment of the present invention, the dual drain valve unit includes a two-inlet-one-outlet valve body, a drain power assembly, and a drain inlet valve assembly. The two-inlet-one-outlet valve body is provided with two drain inlets and one drain outlet. Each drain inlet is connected to the drain outlet of a dishwasher compartment. The two-inlet-one-outlet valve body is configured with a drain inlet valve assembly at a position directly opposite each drain inlet for opening or closing the corresponding drain inlet.

[0014] Furthermore, the drainage power assembly includes a first drive motor, a turbine housing, and a wind turbine and a debris blade located inside the turbine housing. The output shaft of the first drive motor passes through the turbine housing and is connected to the wind turbine and the debris blade in sequence. The turbine housing has a turbine inlet and a turbine outlet. The turbine inlet is connected to the drainage outlet of the two-inlet-one-outlet valve body through a manifold, and the turbine outlet is connected to an external drainage pipe.

[0015] Furthermore, the drain inlet valve assembly includes a drain drive motor, a valve push-pull screw, and a sealing valve, wherein the shaft portion of the sealing valve is provided with an internal thread; the output shaft of the drain drive motor is connected to the head of the valve push-pull screw, and the valve push-pull screw is threadedly connected to the shaft portion; when the drain drive motor rotates, the valve push-pull screw drives the sealing valve to move linearly within the mounting port of the two-inlet-one-outlet valve body.

[0016] As a preferred embodiment of the present invention, the one-inlet multi-outlet diversion valve is a one-inlet three-outlet diversion valve, which has one inlet and three outlets, and each outlet is connected to two spray pipes through a diversion water supply pipe.

[0017] As a preferred embodiment of the present invention, the side wall of the dishwasher is provided with a water inlet, which is connected to the water receiving and distribution tank. The bottom tank is used to collect water, and the bottom of the tank is provided with a water return outlet and a water drain outlet. The size of the water return outlet is larger than that of the water drain outlet, and the filter holes on the water return outlet are smaller.

[0018] According to the above-described solution, the beneficial effects of this invention are as follows:

[0019] 1. Enables independent operation in separate compartments and areas, adapting to diverse tableware cleaning needs:

[0020] By setting up at least two independent washing compartments, along with independent inlet solenoid valves for each compartment in the water distribution tank and independent drain inlet valves for each compartment's drain outlet in the dual drain valve unit, physical isolation and independent control of the working status of each washing compartment are achieved. Simultaneously, relying on the reversing valve assembly of the circulating water treatment unit, the water source from the bottom tank of each compartment flows into the circulation pipeline for heating and additive treatment. Combined with the pressure regulating pump unit and the independent one-inlet-multiple-outlet diversion valve for each compartment, differentiated cleaning parameters can be matched to different washing compartments according to the different cleaning needs of different types of tableware. For the compartment containing tableware requiring strong degreasing, the pressure regulating pump unit outputs high-pressure water flow, which is delivered to the spray pipe inside the compartment for high-pressure rinsing via the diversion valve. For the compartment containing fragile tableware that cannot withstand high pressure, the pump outputs low-pressure water flow for gentle cleaning. This independent working mode of separate compartments and areas avoids the problems of incomplete cleaning or damage to tableware caused by mixing different types of tableware, improving the targeting and safety of the cleaning process.

[0021] 2. Enables partial cleaning of a single compartment, balancing high efficiency and energy saving for cleaning a small number of dishes:

[0022] Each dishwasher compartment is equipped with a single-inlet, multi-outlet diversion valve. The inlet of the valve is uniformly connected to the output of a pressure-regulating water pump unit, while the outlets are connected to at least two spray pipes within the compartment. This design allows for localized cleaning by controlling the on / off state of specific outlets on the diversion valve, enabling some spray pipes within the same dishwasher compartment to operate while others remain dormant. When only a small number of dishes need to be washed, it is not necessary to activate all the spray pipes in the compartment. Simply place the dishes within the coverage area of ​​the operating spray pipes for precise cleaning. This not only reduces wasted water flow and lowers water and detergent consumption but also enhances the convenience and efficiency of washing small quantities of dishes.

[0023] 3. Enable asynchronous collaborative work across multiple compartments to improve overall cleaning efficiency:

[0024] Based on the collaborative control logic of each core unit—namely, the independent inlet solenoid valve of the water tank controls the water injection sequence of each compartment, the reversing valve assembly of the circulating water treatment unit controls the circulating water treatment sequence of a single compartment, and the dual drain valve unit independently controls the drainage status of each compartment—it ultimately achieves asynchronous collaborative work of multiple washing compartments at different cleaning progress stages. When one compartment is in the water injection stage, another compartment can simultaneously perform high-pressure cleaning; when one compartment completes cleaning and enters the drainage stage, another compartment can start circulating water treatment and low-pressure rinsing. The water injection-cleaning-drainage processes in each compartment do not interfere with each other and are connected in an orderly manner. Compared with the traditional serial working mode of completing one process before starting the next, it significantly increases the amount of tableware processed per unit time, which is especially suitable for the efficient cleaning needs of family tableware in multi-meal scenarios.

[0025] 4. Optimize water circulation and pressure control to improve cleaning stability and resource utilization:

[0026] The circulating water treatment unit centrally heats the water source and adds cleaning agents, while the pressure regulating function of the pressure regulating pump unit ensures the consistency of temperature and cleanliness of the cleaning water in each compartment, improving the stability of the cleaning effect. On the other hand, the precise control of circulating water in a single compartment through the reversing valve assembly avoids energy waste caused by simultaneous circulation in multiple compartments, achieving targeted and efficient utilization of circulating water. At the same time, the independent control of the dual drain valve unit allows for flexible selection of the drainage timing based on the degree of contamination of the cleaning wastewater in each compartment, preventing the mixing of clean water from uncleaned compartments with wastewater from cleaned compartments, further improving water resource utilization and cleaning cleanliness.

[0027] As can be seen, this invention breaks through the limitations of traditional single-compartment dishwashers, achieving multiple effects such as differentiated cleaning by compartment, precise control of cleaning in a single compartment, and asynchronous collaboration of multiple compartments, which greatly improves the adaptability of dishwashing scenarios, cleaning efficiency, and water and energy saving performance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the dishwasher of the present invention with the outer shell removed;

[0030] Figure 3 for Figure 2 Enlarged view of section A;

[0031] Figure 4 This is a schematic diagram of the internal water system structure of the present invention;

[0032] Figure 5 for Figure 4 Enlarged view of section B;

[0033] Figure 6 This is a schematic diagram of the circulating water treatment unit;

[0034] Figure 7 An exploded view of the reversing valve body in the circulating water treatment unit;

[0035] Figure 8 This is a cross-sectional view of the reversing valve body.

[0036] Figure 9 This is a schematic diagram of the pressure regulating water pump unit;

[0037] Figure 10 This is an exploded view of the pressure regulating pump body in the pressure regulating pump unit.

[0038] Figure 11 This is a schematic diagram of the structure of a dual drain valve unit;

[0039] Figure 12 This is an exploded view of the dual drain valve unit.

[0040] Figure 13 An exploded view of the drainage power component in the dual drain valve unit;

[0041] Figure 14 A schematic diagram of the wind turbine structure in a drainage power assembly;

[0042] Figure 15 An exploded view of the drain inlet valve assembly in a dual drain valve unit;

[0043] Figure 16 This is a schematic diagram of a one-inlet, three-outlet diverter valve;

[0044] Figure 17 This is an exploded view of a one-inlet, three-outlet diverter valve.

[0045] Figure 18 This is a schematic diagram of the bottom of the driven gear in a one-inlet, three-outlet diverter valve;

[0046] Figure 19 This is a cross-sectional view of the valve body of a one-inlet, three-outlet diverter valve.

[0047] In the diagram,

[0048] 100. Dishwasher; 200. Mobile stand;

[0049] 1. Dishwasher compartment; 11. Compartment inlet; 12. Compartment return outlet; 13. Compartment drain outlet;

[0050] 2. Water receiving and distribution tank;

[0051] 3. Circulating water treatment unit; 31. Four-way valve pipe; 311. Horizontal pipe section; 312. Vertical pipe section; 32. Heating element; 321. Heating tank; 322. Heating tube; 33. Reversing valve drive component; 331. Valve drive motor; 332. Eccentric wheel; 333. Crankshaft; 334. Push-pull rod; 335. Sealing plug; 336. Induction circuit board; 36. Salt water tank; 37. Detergent tank; 38. Dispensing switch solenoid valve; 39. Liquid input pipe;

[0052] 4. One-inlet, three-outlet diverter valve; 41. Inlet; 42. Outlet; 43. Rotary actuator; 431. Drive gear; 44. Driven gear; 441. U-shaped groove; 442. Locking block; 45. Valve core; 451. Valve cap; 46. Valve plug; 47. Elastic element; 48. Magnet; 49. Hall sensor;

[0053] 5. Pressure regulating water pump unit; 51. Variable frequency stepless speed regulating motor; 52. Coupling; 53. Pressure regulating water pump body; 531. First pump body inlet and outlet; 532. Second pump body inlet and outlet; 533. Cavity; 54. First helical gear; 55. Second helical gear; 56. Pressure sensor;

[0054] 6. Dual drain valve unit; 61. Two-inlet, one-outlet valve body; 611. Drainage inlet; 612. Drainage outlet; 613. Mounting port; 614. Position detection component; 615. Manifold; 62. Drainage power component; 621. Turbine motor; 622. Turbine housing; 6221. Turbine inlet; 6222. Turbine outlet; 623. Impeller; 6231. Impeller port; 6232. Shaft hole; 624. Debris blade; 625. Nut; 63. Drainage inlet valve assembly; 631. Drainage drive motor; 632. Valve push-pull screw; 633. Sealing valve;

[0055] 7. Injection pipe. Detailed Implementation

[0056] To better understand the purpose, technical solution, and technical effects of this invention, the invention will be further explained and described below in conjunction with the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also stated that the embodiments described below are only for explaining this invention and are not intended to limit this invention.

[0057] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0058] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features. “Several” means two or more, unless otherwise expressly and specifically defined.

[0059] like Figures 1 to 5 As shown, a multi-compartment convenient robotic dishwasher includes a dishwasher 100 and a mobile base 200. The mobile base 200 is equipped with an autonomous driving unit, which adopts a wheel-driven mechanism and is equipped with a laser or infrared obstacle avoidance sensor. It also houses an electronic control system and a battery unit. The electronic control system includes a PLC controller, which can integrate signal receiving and command output functions. The battery unit is a rechargeable lithium battery that powers the autonomous driving unit.

[0060] The dishwasher 100 has a spray pipe 7 inside its compartment. The dishwasher 100 has at least two independent washing compartments 1, a water receiving and distribution tank 2, a circulating water treatment unit 3, a pressure regulating water pump unit 5, and a dual drain valve unit 6. Each washing compartment 1 has a compartment water inlet 11 on its side wall, which is connected to the water receiving and distribution tank 2. The compartment bottom is used to collect water, and the bottom of the compartment has a compartment return water inlet 12 and a compartment drain outlet 13. The compartment return water inlet 12 is larger than the compartment drain outlet 13, and the filter holes on the compartment return water inlet 12 are smaller, allowing only water to flow in, preventing food residue from clogging the compartment return water inlet 12. The larger size of the compartment return water inlet 12 can better ensure the smooth flow of the circulating water.

[0061] All the water inlets 11 of the washing compartments 1 are connected to the same water receiving and distribution tank 2. Each washing compartment 1 is equipped with a water inlet solenoid valve in the water receiving and distribution tank 2. That is, a water inlet solenoid valve is separately equipped on the connection channel between the water receiving and distribution tank 2 and each washing compartment 1. By controlling the on and off of different water inlet solenoid valves, the water injection target can be flexibly selected. Water can be injected into a single washing compartment 1 or into multiple washing compartments 1 at the same time.

[0062] All dishwasher compartments 1 have their return water inlets 12 connected to the same circulating water treatment unit 3. The circulating water treatment unit 3 is equipped with a reversing valve assembly to control the flow of water from one compartment's bottom tank into the circulation pipe. Only water from the bottom tank of one dishwasher compartment 1 is allowed to flow into the circulation pipe at a time, preventing mixing and interference from multiple compartments and ensuring independent treatment of the circulating water in each compartment. The circulating water treatment unit 3 also has heating and detergent addition functions; that is, the water flowing into the circulation pipe undergoes temperature regulation and detergent addition treatment to ensure the temperature and cleaning power of the subsequent washing water.

[0063] The circulating water treatment unit 3 is connected to the input end of the pressure regulating pump unit 5. The pressure regulating pump unit 5 provides the flow power for the water in the water circuit, pressurizing the circulating water after heating and adding detergent, and then delivering it to the one-inlet-multiple-outlet diversion valve of each washing compartment 1, providing power support for the subsequent rinsing by the spray pipe 7. The water optimized by the circulating water treatment unit 3 needs the power of the pressure regulating pump to circulate in the entire water circuit system. At the same time, the pressure regulating function of the pump can precisely adjust the output pressure according to different cleaning needs, matching high-pressure or low-pressure water flow to different compartments.

[0064] In terms of drainage control, the drain outlets 13 of all washing compartments 1 are connected to the same dual drain valve unit 6. The dual drain valve unit 6 has an independent drain inlet valve assembly 63 for each drain outlet 13, which is used to control the opening and closing state of the drainage of the corresponding washing compartment 1. This allows the drainage state of each compartment to be controlled independently, and it can complete drainage independently according to its own cleaning progress without waiting for other compartments. This structural design, together with the water inlet control and circulating water treatment control, further ensures the feasibility of asynchronous operation of multiple compartments and avoids the inefficiency caused by serial drainage of a single compartment.

[0065] Each washing chamber 1 is equipped with an independent one-inlet-multiple-outlet diverter valve. The inlet 41 of the one-inlet-multiple-outlet diverter valves of different washing chambers 1 are connected to the output end of the same pressure regulating water pump unit 5. Several outlets 42 of each one-inlet-multiple-outlet diverter valve are connected to at least two spray pipes 7 in the chamber through different diverter water pipes to realize the local cleaning function of a single chamber: the water flow distribution in each chamber can be accurately distributed to the level of a single spray pipe 7. Specifically, after the high-pressure or low-pressure water flow output by the pressure regulating water pump enters the diverter valve, it can be delivered to the corresponding spray pipe 7 through only some outlets 42 as needed, so that some spray pipes 7 in the same chamber are working and some are dormant, which can accurately rinse a small number of dishes and reduce the waste of ineffective water flow.

[0066] In summary, this invention breaks through the limitations of traditional single-compartment dishwashers, enabling independent operation of different compartments and areas to meet diverse dishwashing needs; achieving partial cleaning of a single compartment while maintaining high efficiency and energy saving for small-volume dishwashing; enabling asynchronous collaborative operation of multiple compartments to improve overall cleaning efficiency; and optimizing water circulation and pressure control to improve cleaning stability and resource utilization. Specifically:

[0067] By setting up at least two independent washing compartments 1, and with the water receiving and distribution tank 2 corresponding to the independent inlet solenoid valve of each compartment, and the dual drain valve unit 6 corresponding to the independent drain inlet valve assembly 63 of each compartment's drain outlet 13, the physical isolation and independent control of the working status of each washing compartment 1 are achieved. At the same time, relying on the reversing valve assembly of the circulating water treatment unit 3, the water source of the bottom tank of each compartment is controlled to flow into the circulation pipeline for heating and additive treatment. Combined with the pressure regulating water pump unit 5 and the independent one-inlet-multiple-outlet diversion valve of each compartment, different cleaning parameters can be matched to different washing compartments 1 according to the different cleaning needs of different types of tableware. For the compartment containing tableware that requires strong degreasing, the pressure regulating water pump unit 5 can output high-pressure water flow, which is delivered to the spray pipe 7 in the compartment through the diversion valve to achieve high-pressure rinsing. For the compartment containing tableware that is fragile and not resistant to high pressure, the water pump is adjusted to output low-pressure water flow to complete gentle cleaning. The independent working mode of compartments and areas avoids the problem of incomplete cleaning or tableware damage caused by mixing different types of tableware, and improves the targeting and safety of cleaning.

[0068] Each dishwasher compartment 1 is equipped with a multi-outlet diversion valve with its inlet 41 uniformly connected to the output of the pressure regulating water pump unit 5, and several outlets 42 respectively connected to at least two spray pipes 7 inside the compartment. This design can achieve a localized cleaning mode within the same dishwasher compartment 1 by controlling the on / off state of specific outlets 42 of the diversion valve, allowing some spray pipes 7 to operate while others remain dormant. When only a small number of dishes need to be cleaned, it is not necessary to activate all the spray pipes 7 in the compartment. Simply place the dishes in the coverage area of ​​the working spray pipes 7 to complete precise cleaning. This not only reduces the waste of ineffective water flow and lowers the consumption of water resources and detergent, but also improves the convenience and efficiency of cleaning small amounts of dishes.

[0069] Based on the collaborative control logic of each core unit, namely, the independent inlet solenoid valve of the water receiving and distribution tank 2 controls the water injection sequence of each compartment, the reversing valve assembly of the circulating water treatment unit 3 controls the circulating water treatment sequence of a single compartment, and the dual drain valve unit 6 independently controls the drainage status of each compartment, the asynchronous collaborative work of multiple washing compartments 1 under different cleaning progress is finally realized. When one compartment is in the water injection stage, another compartment can simultaneously perform high-pressure cleaning; when one compartment completes cleaning and enters the drainage stage, another compartment can start circulating water treatment and low-pressure rinsing. The cleaning process of water injection-cleaning-drainage in each compartment does not interfere with each other and is orderly connected. Compared with the traditional serial working mode of completing one process before starting the next, it greatly improves the amount of tableware processed per unit time, which is especially suitable for the efficient cleaning needs of tableware in family multi-meal scenarios.

[0070] The circulating water treatment unit 3, with its centralized heating of the water source and addition of cleaning agents, combined with the pressure regulation function of the pressure regulating pump unit 5, ensures the consistency of temperature and cleanliness of the cleaning water in each compartment, thus improving the stability of the cleaning effect. On the other hand, the precise control of the circulating water in a single compartment through the reversing valve assembly avoids energy waste caused by simultaneous circulation in multiple compartments, achieving targeted and efficient utilization of circulating water. Meanwhile, the independent control of the dual drain valve unit 6 allows for flexible selection of the drainage timing based on the degree of pollution of the cleaning wastewater in each compartment, preventing the mixing of clean water from uncleaned compartments with wastewater from cleaned compartments, further improving water resource utilization and cleaning cleanliness.

[0071] like Figure 6 As shown, in this invention, the circulating water treatment unit 3 includes a reversing valve assembly, a heating element 32, a brine tank 36, and a detergent tank 37. The reversing valve assembly includes a reversing valve body and a reversing valve drive 33. The reversing valve body is a four-way valve pipe 31, including a horizontal pipe section 311 and two vertical pipe sections 312 perpendicular to the horizontal pipe section 311. One of the vertical pipe sections 312 is connected to the return water inlet 12 of one washing compartment 1, and the other vertical pipe section 312 is connected to the input end of the heating pipe 322 of the heating element 32. One end of the horizontal pipe section 311 is connected to the return water inlet 12 of the other washing compartment 1. The other end of 311 is equipped with a reversing valve drive 33, and the sealing plug 335 of the reversing valve drive 33 can move linearly within the transverse pipe 311. When the sealing plug 335 moves to the other end of the closed transverse pipe 311, only the water return port 12 of the washing compartment 1 connected to the vertical pipe 312 is connected to the input end of the heating pipe 322. When the sealing plug 335 moves to the middle position of the transverse pipe 311, only the water return port 12 of the washing compartment 1 connected to the port of the transverse pipe 311 is connected to the input end of the heating pipe 322, thereby enabling the reversing valve drive 33 to select different water sources from the water return ports 12 of the washing compartment 1 to flow into the circulation pipe.

[0072] like Figure 7 and Figure 8 As shown, in one specific embodiment, the reversing valve drive component 33 includes a valve drive motor 331, an eccentric wheel 332, a crankshaft 333, a push-pull rod 334, and a sealing plug 335. The valve motor seat of the valve drive motor 331 is provided with a rod support portion. The output shaft of the valve drive motor 331 passes through the valve motor seat and is connected to the bottom middle limit connection of the eccentric wheel 332 to drive the eccentric wheel 332 to rotate. The top edge of the eccentric wheel 332 is provided with an eccentric rod. One end of the crankshaft 333 is sleeved on the rod surface groove of the eccentric rod. The crankshaft 333 rotates relative to the eccentric rod. The other end of the crankshaft 333 is provided with a forked portion. The forked portion is hinged to one end of the push-pull rod 334. The other end of the push-pull rod 334 passes through the rod support portion on the valve motor seat and is connected to the sealing plug 335 at its end. When the eccentric wheel 332 rotates, the eccentric rod makes a circular motion and drives the push-pull rod 334 to make a linear motion through the crankshaft 333, thereby realizing that the push-pull rod 334 drives the sealing plug 335 to move linearly within the transverse tube 311. When the eccentric wheel 332 rotates to the side where the eccentric rod is away from the four-way valve tube 31, the sealing plug 335 is located in the middle position of the transverse tube 311, and only the drain outlet 12 of the washing compartment 1 at the end of the transverse tube 311 is connected to the input end of the heating tube 322; when the eccentric wheel 332 rotates to the side where the eccentric rod is close to the four-way valve tube 31, the sealing plug 335 closes the drain outlet 12 of the washing compartment 1 at the end of the transverse tube 311, and only the drain outlet 12 of the washing compartment 1 in the vertical tube 312 is connected to the input end of the heating tube 322.

[0073] In a preferred embodiment, an induction magnet is embedded at the bottom of the eccentric wheel 332 corresponding to the eccentric rod, and an induction circuit board 336 integrating two induction sensors is provided below the eccentric wheel 332. One induction sensor is used to detect the position of the eccentric wheel 332 when it rotates to the side of the eccentric rod away from the four-way valve pipe 31, and the other induction sensor is used to detect the position of the eccentric wheel 332 when it rotates to the side of the eccentric rod close to the four-way valve pipe 31, thereby realizing the detection of the position of the sealing sheet.

[0074] The heating element 32 includes a heating tank 321 and a heating tube 322. The heating tube 322 passes through the heating tank 321, which is equipped with several heating elements for heating the heating wires on the inner wall of the heating tank 321. The heating tube 322 passes through the heating tank 321 so that water flows through it, thereby heating the water passing through the heating tube 322. One end of the heating tube 322 is connected to the valve body output port of the reversing valve assembly, and the other end is connected to the input end of the pressure regulating water pump unit 5 (i.e., the first pump body inlet / outlet 531). Two liquid input pipes 39 are provided on the heating tube 322, which are respectively connected to the brine tank 36 and the detergent tank 37. The brine tank 36 stores brine for washing, and the detergent tank 37 stores detergent for washing. Both tanks are equipped with liquid level sensors to monitor the liquid level. Each liquid inlet pipe 39 is equipped with a dispensing switch solenoid valve 38 at its inlet to control the opening and closing of the liquid inlet pipe 39. When the dispensing switch solenoid valve 38 of the liquid inlet pipe 39 is open, the corresponding detergent is added to the washing water. The heating tank 321 is equipped with a temperature sensor and a temperature control switch. The temperature sensor is used to collect the dynamic temperature of the water in the heating tank 321 in real time, convert the temperature signal into an electrical signal and transmit it to the main control system of the lifting base unit. The main control system compares this signal with the preset target heating temperature of different washing modes, and then precisely adjusts the power supply or start / stop status of the heating element to ensure that the washing water temperature is stable within the set range, ensuring cleaning effect and energy efficiency. The temperature control switch is used to realize overheat safety protection. Under normal operation, it is in a closed conducting state. When the temperature in the heating tank 321 rises to the preset operating temperature due to temperature sensor failure, water circuit blockage leading to dry burning or other abnormal conditions, the temperature control switch will automatically disconnect the circuit, cut off the power supply to the heating element, and prevent the heating element from burning out, the heating tank 321 from deforming, or the surrounding pipes from being damaged by high temperature.

[0075] like Figure 9 and Figure 10 As shown, in this invention, the pressure regulating water pump unit 5 includes a variable frequency continuously variable speed motor 51, a coupling 52, and a pressure regulating water pump body 53. The pressure regulating water pump body 53 contains a first helical gear 54 and a second helical gear 55. The first helical gear 54 and the second helical gear 55 rotate in opposite directions and mesh with each other. Each of the two helical gears has a gear shaft at its center, and both ends of the two gear shafts are rotatably mounted on opposite side walls of the pressure regulating water pump body 53, allowing the two helical gears to rotate within the gear cavities of the pressure regulating water pump body 53. The first helical gear 54 serves as the driving gear, with its gear shaft extending out of the pressure regulating water pump body 53 and connected to one end of the coupling 52. The other end of the coupling 52 is connected to the output shaft of the variable frequency continuously variable speed motor 51. When the variable frequency continuously variable speed motor 51 operates, it drives the first helical gear 54 to rotate, thereby driving the second helical gear 55 to rotate in the opposite direction through the teeth of the rotating first helical gear 54. The second helical gear 55 then serves as the driven gear.

[0076] A first pump body inlet / outlet 531 is provided on one side wall of the pressure regulating water pump body 53. The first pump body inlet / outlet 531 is directly opposite the meshing position of the first helical gear 54 and the second helical gear 55 and is perpendicular to the gear shaft. A second pump body inlet / outlet 532 is provided on the opposite side of the pressure regulating water pump body 53. The second pump body inlet / outlet 532 has a cavity 533 extending into the interior of the pressure regulating water pump body 53. The cavity 533 communicates with the gear cavity inside the pressure regulating water pump body 53 and is located between the two helical gears. At the same time, the second pump body inlet / outlet 532 and its cavity 533 are parallel to the gear shaft. A pressure sensor 56 is provided on the pressure regulating water pump body 53 corresponding to the cavity 533 to detect the real-time pressure of the water source in the cavity 533 and transmit the pressure signal to the main control system of the dishwasher 100. The main control system determines the water circuit operation status based on the signal. When the water supply is in the forward direction, it ensures that the pressure required for spray cleaning is met and ensures the water spray force to improve the cleaning effect.

[0077] When the variable frequency stepless speed regulating motor 51 operates, it drives the first helical gear 54 and the second helical gear 55 to rotate synchronously in opposite directions. The two helical gears generate negative pressure suction at the inlet / outlet 531 of the first pump body and positive pressure thrust on the opposite side (i.e., on the side of the cavity 533 of the inlet / outlet 532 of the second pump body). This causes water to enter from the first inlet / outlet 531 of the pressure regulating pump body 53 and flow out from the second inlet / outlet 532 of the pressure regulating pump body 53. The first inlet / outlet 531 serves as the input end of the pressure regulating pump unit 5 and is connected to the output end of the circulating water treatment unit 3. The second inlet / outlet 532 serves as the output end of the pressure regulating pump unit 5 and is connected to the inlet 41 of each one-inlet-multiple-outlet diverter valve.

[0078] like Figures 16 to 19As shown, in one specific embodiment, the one-inlet multi-outlet diversion valve is a one-inlet three-outlet diversion valve 4. The valve body of the one-inlet three-outlet diversion valve 4 has one inlet 41 and three outlets 42, all of which are connected to the inner cavity of the valve body. The inlet 41 is connected to the output end of the pressure regulating water pump unit 5, and the three outlets 42 are connected to different injection pipes 7 through their respective diversion water supply pipes. Each diversion water supply pipe is connected to two injection pipes 7. The valve body is provided with a rotary actuator 43, a driven gear 44, and multiple elastic valve cores 45. The rotary actuator 43 is a motor, and its output shaft is provided with a drive gear 431. The drive gear 431 meshes with the driven gear 44 to drive the driven gear 44 to rotate. The number of resilient valve cores 45 is the same as the number of outlets 42, both being three. The bottom end of each resilient valve core 45 is located inside the outlet 42 and has a valve plug 46, which is used to close the outlet 42. The top ends of the three resilient valve cores 45 abut against the lower surface of the driven gear 44. The lower surface of the driven gear 44 has one or two U-shaped grooves 441, the depth of which gradually decreases from the middle to the sides, so that the U-shaped grooves 441 have high and low positions.

[0079] Under the pressure of the driven gear 44's lower surface, the bottom end of the elastic valve core 45 and its valve plug 46 sink and block the outlet 42. The rotary actuator 43 drives the driven gear 44 to rotate, changing the position of the U-shaped groove 441. When the U-shaped groove 441 rotates to the elastic valve core 45, the top of the elastic valve core 45 gradually enters the U-shaped groove 441, no longer being pressed by the lower surface of the driven gear 44, and gradually moves from the shallow side groove to the deep middle groove of the U-shaped groove 441. The elastic valve core 45 moves upward as a whole, causing the valve plug 46 to disengage and open the outlet 42, allowing water in the valve body to flow out from the outlet.

[0080] The resilient valve core 45 includes a valve core 45, a valve plug 46, and an elastic element 47. The valve plug 46 is located at the bottom of the valve core 45, and a valve cap 451 is provided at the top of the valve core 45. A locking block 442 is provided on the inner wall of the middle part of the U-shaped groove 441. When the driven gear 44 rotates until the top of the valve core 45 gradually moves from the shallow side groove to the deep middle groove of the U-shaped groove 441, the valve cap 451 engages with the locking blocks 442 on both sides of the U-shaped groove 441, ensuring that the valve plug 46 fully opens the outlet 42. When the driven gear 44 continues to rotate, the top of the valve core 45 gradually moves from the deep middle groove to the shallow side groove of the U-shaped groove 441, and then moves out of the U-shaped groove 441 back to the lower surface of the driven gear 44, causing the valve plug 46 to sink again and block the outlet 42. The elastic element 47 can be a compression spring.

[0081] In a preferred embodiment, a magnet 48 is disposed inside the driven gear 44. When the driven gear 44 rotates, the magnet also rotates. Multiple position Hall sensors 49 are disposed above the driven gear 44 to detect the position of the magnet. When the magnet rotates to be directly below a certain Hall sensor 49, it triggers the signal of that Hall sensor 49. Based on this signal, the main control system of the dishwasher accurately determines whether the driven gear 44 has rotated to a predetermined angle position, thereby monitoring the opening and closing status of different water outlets and controlling the one-inlet-three-outlet diversion valve to deliver washing water to different diversion water pipes and their connected spray pipes.

[0082] like Figures 11 to 15 As shown, in this invention, the dual drain valve unit 6 includes a two-inlet-one-outlet valve body 61, a drain power assembly 62, and a drain inlet valve assembly 63. The two-inlet-one-outlet valve body 61 is provided with two drain inlets 611 and one drain outlet 612. Each drain inlet 611 is connected to the drain outlet 13 of a dishwasher compartment 1. Each drain inlet 611 has a unique corresponding drain inlet valve assembly 63, and the installation position of the drain inlet valve assembly 63 is directly opposite to the drain inlet 611. The sealing valve 633 of the drain inlet valve assembly 63 moves within the flow channel of the corresponding drain inlet 611 to open / close the inlet by moving away from or blocking the corresponding drain inlet 611, thereby realizing the independent on / off control of the drain outlet 13 of the corresponding dishwasher compartment 1.

[0083] The two-inlet and one-outlet valve body 61 has a symmetrical structure, with two drain inlets 611 located on both sides and a drain outlet 612 located between the two drain inlets 611; and each drain inlet 611 has a mounting port 613 for installing the drain inlet valve assembly 63 in the direction directly opposite to it.

[0084] The drainage inlet valve assembly 63 includes a drainage drive motor 631, a valve push-pull screw 632, and a sealing valve 633. The sealing valve 633 has a shaft extending from its tail. The shaft is hollow and has internal threads machined on its inner wall, which are used to achieve transmission cooperation with the valve push-pull screw 632. The valve push-pull screw 632 has an external thread structure. Its head is coaxially connected to the output shaft of the drainage drive motor 631. The external thread of the shaft body precisely meshes with the internal thread of the shaft of the sealing valve 633, forming a threaded transmission pair.

[0085] When it is necessary to open or close the corresponding drain inlet 611, the electronic control system of the dishwasher 100 sends a forward or reverse rotation signal to the drain drive motor 631. After the drain drive motor 631 starts, its output shaft drives the valve push-pull screw 632 to rotate synchronously. Therefore, the rotational motion of the valve push-pull screw 632 is converted into the linear motion of the sealing valve 633 through thread transmission. When the drain drive motor 631 rotates forward, the valve push-pull screw 632 pushes the sealing valve 633 to move closer to the drain inlet 611 until the sealing end of the sealing valve 633 is in contact with the flow channel port of the drain inlet 611, thereby closing the drain inlet 611. When the drain drive motor 631 rotates in reverse, the valve push-pull screw 632 pulls the sealing valve 633 to move away from the drain inlet 611, thereby opening the drain inlet 611.

[0086] In a preferred embodiment, a position detection component 614 is provided on each of the outer walls of the two inlet and one outlet valve body 61 to detect the position of the corresponding upper sealing valve 633 in the two inlet and one outlet valve body 61, thereby knowing the opening status of the drainage inlets 611 on both sides, realizing accurate detection of the position of the sealing valve 633 and real-time feedback of the opening status of the drainage inlets 611.

[0087] The drainage power assembly 62 includes a turbine motor 621, a turbine housing 622, and a blower 623 and a shredder blade 624 located inside the turbine housing 622. The output shaft of the turbine motor 621 passes through the turbine housing 622 and is connected to the blower 623 and the shredder blade 624 in sequence, ensuring that the turbine motor 621 can synchronously drive the blower 623 and the shredder blade 624 to rotate, and that the center of rotation coincides with the center of the flow channel inside the turbine housing 622, ensuring smooth water flow and effective shredding. The turbine housing 622 has a turbine inlet 6221 and a turbine outlet 6222. The turbine inlet 6221 is connected to the drainage outlet 612 of the two-inlet-one-outlet valve body 61 through a manifold 615, and the turbine outlet 6222 is connected to an external drainage pipe. The specific path of the water flow channel is as follows: drainage outlet 612 of the two-inlet-one-outlet valve body 61 - manifold 615 - turbine inlet 6221 - inside the turbine housing 622 (flowing through the impeller 623 and the shredder blade 624) - turbine outlet 6222 - main drain pipe. When the turbine motor 621 rotates, the impeller 623 rotates synchronously to generate negative pressure and thrust, realizing dynamic drainage; at the same time, the shredder blade 624 rotates synchronously to cut and crush large particles of residue in the wastewater.

[0088] In one specific embodiment, the turbine housing 622 includes an upper housing and a lower housing. The turbine inlet 6221 of the turbine housing 622 is located in the middle region of the upper housing, and the diameter of the turbine inlet 6221 matches the output port diameter of the manifold 615. Furthermore, the turbine inlet 6221 has a gradually narrowing flared structure, facilitating the passage of the manifold 615 through the turbine inlet 6221 on the upper housing. The turbine outlet 6222 of the turbine housing 622 is located on one side of the lower housing.

[0089] The slag-crushing blade 624 is located in the impeller opening 6231. The blade edge is machined with a sharp cutting edge. The output shaft of the turbine motor 621 passes vertically through the shaft hole 6232 of the impeller 623 and is circumferentially limited to the shaft hole 6232 to ensure that the motor can drive the impeller 623 to rotate synchronously. The center of the slag-crushing blade 624 has a limiting hole that matches the end of the output shaft. It is limited and sleeved on the end of the turbine motor 621 output shaft that passes through the shaft hole 6232 through the limiting hole. The end of the output shaft is machined with an external thread. A locking nut 625 is engaged with the external thread of the output shaft to axially fasten the slag-crushing blade 624 to the output shaft, ensuring that the slag-crushing blade 624 rotates synchronously with the impeller 623 and the motor output shaft.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A multi-compartment portable robotic dishwasher, comprising a dishwasher and a mobile base, wherein the dishwasher compartment is equipped with a spray pipe, characterized in that, The dishwasher has at least two independent washing compartments, a water receiving and distribution tank, a circulating water treatment unit, a pressure regulating water pump unit, and a dual drain valve unit; All the dishwasher compartments have their water inlets connected to the same water distribution tank. The water distribution tank is equipped with a water inlet solenoid valve for each dishwasher compartment to control the water injection into one or more of the dishwasher compartments. The return water inlets of all the dishwasher compartments are connected to the same circulating water treatment unit. The circulating water treatment unit is equipped with a reversing valve assembly for controlling the flow of water from one of the compartment bottom tanks into the circulation pipeline. The circulating water treatment unit also heats the water and adds detergent. The circulating water treatment unit is connected to the input end of the pressure regulating pump unit. All the drain outlets of the dishwasher compartments are connected to the same dual drain valve unit. The dual drain valve unit has an independent drain inlet valve assembly for each drain outlet, which is used to control the drain opening and closing status of the corresponding dishwasher compartment individually. Each of the dishwasher compartments is equipped with an independent one-inlet-multiple-outlet diverter valve. The inlets of the one-inlet-multiple-outlet diverter valves of different dishwasher compartments are connected to the output end of the same pressure regulating water pump unit. Several outlets of each one-inlet-multiple-outlet diverter valve are connected to different spray pipes inside the compartment through different diverter water pipes.

2. The multi-compartment portable robotic dishwasher according to claim 1, characterized in that, The circulating water treatment unit includes a heating element, a brine tank, and a detergent tank. The heating element includes a heating tank and a heating tube. One end of the heating tube is connected to the valve body output port of the reversing valve assembly, and the other end is connected to the pressure regulating water pump unit. The heating tank is used to heat the water source in the heating tube. The heating tube is provided with two liquid input pipes, which are respectively connected to the brine tank and the detergent tank. Each liquid input pipe is equipped with a dispensing switch solenoid valve at its port to control the opening and closing state of the liquid input pipe.

3. The multi-compartment convenient robotic dishwasher according to claim 2, characterized in that, The reversing valve assembly includes a reversing valve body and a reversing valve drive. The reversing valve body includes a horizontal pipe section and two vertical pipe sections perpendicular to the horizontal pipe section. One of the vertical pipe sections is connected to the return water inlet of a washing compartment, and the other vertical pipe section is connected as the valve body output pipe to the input end of the heating tube of the heating element. One end of the horizontal pipe section is connected to the return water inlet of another washing compartment, and the other end of the horizontal pipe section is equipped with the reversing valve drive.

4. The multi-compartment convenient robotic dishwasher according to claim 3, characterized in that, The reversing valve drive includes a valve drive motor, an eccentric wheel, a crankshaft, a push-pull rod, and a sealing plug. The output shaft of the valve drive motor is connected to the bottom center limit of the eccentric wheel. An eccentric rod is provided on the top edge of the eccentric wheel. One end of the crankshaft is sleeved with the eccentric rod, and the other end of the crankshaft is hinged to one end of the push-pull rod. The other end of the push-pull rod is connected to the sealing plug.

5. The multi-compartment convenient robotic dishwasher according to claim 1, characterized in that, The pressure regulating water pump unit includes a variable frequency stepless speed regulating motor, a coupling, and a pressure regulating water pump body. The pressure regulating water pump body is provided with a first helical gear and a second helical gear with opposite rotation directions and meshing with each other. The pressure regulating water pump body has a first pump body inlet and outlet on one side and a second pump body inlet and outlet with a cavity on the opposite side. The first pump body inlet and outlet are connected to the water treatment unit, and the second pump body inlet and outlet are connected to the inlet of the one-inlet-multiple-outlet diversion valve.

6. The multi-compartment convenient robotic dishwasher according to claim 1, characterized in that, The dual drain valve unit includes a two-inlet-one-outlet valve body, a drain power assembly, and a drain inlet valve assembly. The two-inlet-one-outlet valve body has two drain inlets and one drain outlet. Each drain inlet is connected to the drain outlet of a dishwasher compartment. The two-inlet-one-outlet valve body is equipped with a drain inlet valve assembly at the position directly opposite each drain inlet, which is used to open or close the corresponding drain inlet.

7. The multi-compartment convenient robotic dishwasher according to claim 6, characterized in that, The drainage power assembly includes a first drive motor, a turbine housing, and a wind turbine and a debris blade located inside the turbine housing. The output shaft of the first drive motor passes through the turbine housing and is connected to the wind turbine and the debris blade in sequence. The turbine housing has a turbine inlet and a turbine outlet. The turbine inlet is connected to the drainage outlet of the two-inlet-one-outlet valve body through a manifold, and the turbine outlet is connected to an external drainage pipe.

8. The multi-compartment convenient robotic dishwasher according to claim 6, characterized in that, The drain inlet valve assembly includes a drain drive motor, a valve push-pull screw, and a sealing valve. The shaft of the sealing valve has an internal thread. The output shaft of the drain drive motor is connected to the head of the valve push-pull screw, and the valve push-pull screw is threaded to the shaft. When the drain drive motor rotates, the valve push-pull screw drives the sealing valve to move linearly within the mounting port of the two-inlet-one-outlet valve body.

9. The multi-compartment convenient robotic dishwasher according to claim 1, characterized in that, The one-inlet-multiple-outlet diversion valve is a one-inlet-three-outlet diversion valve. The one-inlet-three-outlet diversion valve has one inlet and three outlets. Each outlet is connected to two spray pipes through a diversion water supply pipe.

10. The multi-compartment portable robotic dishwasher according to claim 1, characterized in that, The dishwasher has a water inlet on its side wall, which is connected to the water distribution tank. The bottom tank is used to collect water. The bottom of the tank has a return water outlet and a drain outlet. The return water outlet is larger than the drain outlet, and the filter holes on the return water outlet are smaller.

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