Cleaning machine

Abstract

A cleaning machine, comprising a base (100), water tanks (200) detachably mounted on the base (100), and a pump (300) configured to pump liquid in the water tanks (200) to a nozzle (410), wherein there are at least two water tanks (200), each water tank (200) is detachably mounted on the base (100), a switching valve (500) configured to switch a pumping path is provided between the pump (300) and the water tanks (200), the switching valve (500) is provided with liquid inlet channels (510) communicated with the corresponding water tanks (200) and a liquid outlet channel (520) communicated with the pump (300), the pump (300) and the switching valve (500) are provided in the base (100), an operating member (610) configured to operate the switching valve (500) is provided on the outer side of the base (100), and a recessed receiving cavity (110) configured to store the nozzle (410) is provided at the top of the base (100). The nozzle (410) can be stored in the receiving cavity (110) when not in use, so that the nozzle (410) is located inside the base (100), preventing the nozzle (410) from being damaged due to collision with other objects, thereby ensuring the service life of the nozzle (410).

Description

A cleaning machine Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, in particular to a cleaning machine. Background Art

[0002] With the development of power tools, cleaning machines are becoming increasingly popular, especially high-pressure cleaners, which typically consist of a machine body, a nozzle, and a water pump. The water pump pressurizes and pumps liquid to the nozzle, causing the liquid to be sprayed out from the nozzle. The liquid sprayed from the nozzle can be used to clean roads, walls, cars, bicycles, curtains, etc. To expand the application scenarios of high-pressure cleaners, existing high-pressure cleaners are generally equipped with a water tank. The water pump pressurizes and pumps the liquid in the water tank to the nozzle. This allows the use of high-pressure cleaners to be independent of the location of the water supply pipe and can be moved to any location where cleaning is required.

[0003] However, existing high-pressure cleaners are generally only equipped with one water tank. When cleaning liquid is needed to decompose dirt first and then rinse with clean water, the user needs to replace the liquid in the water tank during the cleaning process. Especially when there is a lot of cleaning liquid remaining, it may cause a waste of cleaning liquid, which is not conducive to saving cleaning liquid and improving the user experience.

[0004] Summary of the Invention

[0005] In order to solve the above-mentioned shortcomings and deficiencies in the prior art, the present invention provides a cleaning machine with an improved structure. Two or more water tanks are provided, and the user can switch the pumping path according to cleaning needs.

[0006] In order to achieve the above-mentioned technical objectives, the present invention provides a cleaning machine, comprising a base, a water tank detachably mounted on the base, and a pump for pumping the liquid in the water tank to the nozzle, characterized in that the water tank is provided with at least two and each water tank is detachably mounted on the base, a switching valve for switching the pumping passage is provided between the pump and the water tank, the switching valve is provided with a liquid inlet channel connected to the corresponding water tank and a liquid outlet channel connected to the pump, and the pump and the switching valve are arranged in the base.

[0007] Preferably, the water tank includes a first box body and a second box body that are independent of each other. The first box body and the second box body are installed side by side on the base, and a locking structure is provided between the base and the two box bodies.

[0008] Preferably, the width of the first box body is smaller than the width of the second box body, the bottom of the first box body is provided with a protrusion protruding toward the second box body in the width direction, and the bottom of the second box body is provided with a avoidance portion for avoiding the protrusion, and the first box body and the second box body installed on the base make the protrusion cooperate with the avoidance portion.

[0009] Preferably, the first box body and the second box body are installed side by side on the base along the width direction.

[0010] Preferably, the length of the first box body is consistent with that of the second box body, a first one-way valve is provided on the bottom wall of the first box body, and a second one-way valve is provided on the bottom wall of the second box body, and the first one-way valve and the second one-way valve are provided at the same end in the length direction.

[0011] Preferably, the base includes a seat shell and a seat cover fixed to the top side of the seat shell, one end of the seat cover is provided with a platform portion, and the other end is recessed to form a receiving cavity, the platform portion is provided with a first water inlet joint corresponding to the first one-way valve and a second water inlet joint corresponding to the second one-way valve, and the outer periphery of the receiving cavity is provided with a step surface as high as the platform portion.

[0012] Preferably, the first box body is provided with a first buckle protruding outward on two opposite side walls perpendicular to the length direction, the second box body is provided with a second buckle protruding outward on two opposite side walls perpendicular to the length direction, and the base is provided with a lock buckle on two opposite side walls perpendicular to the length direction, and the lock buckle can simultaneously buckle the first buckle and the second buckle (224).

[0013] Preferably, a handle is hinged on the top side of the second box body, and there are two hinges between the handle and the second box body, which are spaced apart along the length direction, and the two hinges are located in the center in the width direction.

[0014] Preferably, the top side of the second box body is provided with a recessed groove for accommodating the handle.

[0015] Preferably, the volume of the first box is smaller than that of the second box, and the volume ratio of the first box to the second box is 1:1.5 to 1:8.

[0016] Preferably, an operating member for operating the switching valve is provided on the outer side of the base, and a concave receiving cavity for storing the nozzle is provided on the top of the base.

[0017] Preferably, the base includes a seat shell and a seat cover fixed to the top side of the seat shell, and the receiving cavity is formed by the recess of the seat cover.

[0018] Preferably, the cleaning machine includes a battery pack that is detachably mounted in the base, the pump and the switching valve are arranged at one end of the base, and the battery pack is arranged at the other end of the base.

[0019] Preferably, a compartment for accommodating the battery pack is provided in the base, one side of the compartment is open and faces the side wall of the base, a cover for opening and closing the compartment is hinged on the side wall of the base, and a notch connected to the accommodating cavity is provided on the other side wall of the base opposite to the side wall of the base where the cover is provided.

[0020] Preferably, a switch and / or a water volume adjustment member is also provided on the side wall of the base provided with the cover plate.

[0021] Preferably, the cleaning machine includes a control panel arranged in the base, and the control panel and the battery pack are arranged at the same end in the base.

[0022] Preferably, the water tank is provided with two, the switching valve has two spaced-apart liquid inlet channels and a valve ball rotatably arranged between the two liquid inlet channels, the valve ball is provided with an intermediate channel for connecting the liquid outlet channel with one of the liquid inlet channels, and the operating member is connected to the valve ball.

[0023] Preferably, the middle channel on the valve ball is L-shaped, and one end of the middle channel can be communicated with one of the liquid inlet channels, and the other end can be communicated with the liquid outlet channel.

[0024] Preferably, the pump includes a pump body, three pistons, a transmission structure, a motor and a spring. The pump body is provided with a pump chamber, a liquid inlet for connecting the pump chamber with the switching valve, a liquid outlet for connecting the pump chamber with the nozzle, and three piston chambers connected with the pump chamber. The three pistons are axially movable and inserted in the corresponding piston chambers. The transmission structure is provided between the motor and the piston and includes a deflection plate. The axial direction of the deflection plate has a deflection angle γ relative to the axial direction of the motor. The rear ends of the three pistons abut the deflection plate. The motor drives the three pistons to actuate out of phase through the transmission structure. The outside of each piston is provided with a spring with one end positioned and the other end in contact with the piston. The spring is configured to deform under force when the deflection plate drives the piston to move toward the pump chamber, and to drive the piston to move back to the pump chamber when the deflection plate releases the piston.

[0025] After adopting the above technical solution, the present invention has the following advantages:

[0026] 1. The cleaning machine provided by the present invention has at least two water tanks that are detachably mounted on the base, and a switching valve is provided between the pump and the water tank. The pumping path can be switched through the switching valve, and each water tank can hold different liquids. The user can switch the pumping path through the operating member according to cleaning needs, so that the pump can pump the liquid in the corresponding water tank to the nozzle. The user does not need to replace the liquid in the water tank during the cleaning process, and the remaining cleaning liquid can also be temporarily stored in the water tank, which saves cleaning liquid while improving the user experience.

[0027] 2. A locking structure is provided between the base and the two boxes, which enables the two boxes to maintain structural stability during cleaning, thereby enabling the pumping water channel structure to maintain structural stability during cleaning.

[0028] 3. The protrusion is used to appropriately increase the width of the bottom of the first box so that the first box can remain stable when placed independently. The bottom of the second box is provided with a clearance portion for avoiding the protrusion. When the two boxes are installed on the base, the protrusion and the clearance portion cooperate to allow the first box and the second box to fit together, thereby maintaining a compact overall structure.

[0029] 4. The two boxes are installed side by side on the base along the width direction, so that the protrusion and the avoidance portion can cooperate smoothly, and at the same time the first box and the second box installed on the base can present a complete box-shaped appearance.

[0030] 5. The two boxes are of the same length, and the one-way valves on the bottom walls of the two boxes are located at the same end in the length direction, so that the water channel structure in the base can be located at the same end. When the cleaning machine is powered by a battery pack, the battery pack can be set at one end of the base away from the water channel structure to minimize the adverse effects of water leakage in the water channel structure on the battery pack.

[0031] 6. When not in use, the nozzle can be stored in the receiving chamber, so that the nozzle is located inside the base to prevent damage to the nozzle due to collision with other objects. The outer periphery of the receiving chamber is provided with a stepped surface at the same height as the platform. When the box is installed on the base, the end of the box corresponding to the platform contacts the platform and receives vertical support. The end of the box corresponding to the receiving chamber can also contact the stepped surface and receive vertical support, thereby improving the structural stability of the box when installed on the base.

[0032] 7. The two boxes are provided with outwardly protruding buckles on the two opposite side walls perpendicular to the length direction, and the base is provided with locks on the two opposite side walls perpendicular to the length direction. The distribution of the locking structure is reasonably arranged so that the locks on the base can simultaneously buckle with the buckles on the two boxes, which is conducive to reasonably simplifying the locking structure and can also reasonably reduce the operating steps for users to lock the boxes.

[0033] 8. The top side of the second box is hinged with a handle. The two hinges between the handle and the second box are spaced apart along the length direction and located in the center in the width direction. The distribution of the two hinges between the handle and the second box is reasonably set so that the machine can maintain balance when the user carries it by the handle.

[0034] 9. A groove is provided on the top side of the second box body, and the handle can be accommodated in the groove to prevent the handle from protruding out of the second box body when not in use, thereby facilitating a reasonable reduction in the overall dimensions of the second box body.

[0035] 10. A concave receiving cavity is provided on the top of the base. The nozzle can be stored in the receiving cavity when not in use, so that the nozzle is located inside the base to avoid damage to the nozzle due to collision with other objects, thereby ensuring the service life of the nozzle.

[0036] 11. The receiving cavity is formed by the concave portion of the base cover. The components of the base and the structure of the receiving cavity are reasonably arranged to simplify the structure of the base.

[0037] 12. The pump and switching valve are located at one end of the base, and the battery pack is located at the other end of the base. The battery pack should be as far away from the pump and switching valve as possible to avoid adverse effects of liquid leakage from the pump or switching valve on the battery pack and ensure the service life of the battery pack.

[0038] 13. One side of the compartment is open, and the battery pack can be loaded and unloaded from the open side of the compartment, making it easy for users to load and unload the battery pack. When the water tank is installed on the base, the user can directly take the nozzle from the receiving cavity through the notch or place the nozzle into the receiving cavity through the notch. The cover and the notch are respectively provided on opposite sides of the base, so that the nozzle is removed and placed as far away from the open side of the compartment as possible to prevent residual liquid dripping from the nozzle from flowing into the compartment through the gap between the cover and the side wall of the base and adversely affecting the battery pack.

[0039] 14. The control board and battery pack are installed at the same end of the base, and the control board is also installed as far away from the pump and switching valve as possible to avoid the adverse effects of liquid exposed by the pump or switching valve on the control board and ensure the control performance of the control board.

[0040] 15. The operating member is connected to the valve ball of the switching valve. The user can rotate the valve ball through the operating member to connect the middle channel of the valve ball to the liquid outlet channel and one of the liquid inlet channels, so that the user can switch the water tank connected to the liquid outlet channel according to cleaning needs.

[0041] 16. The pump is preferably a three-plunger pump, which can increase the pressure and efficiency of pumping the liquid from the water tank to the nozzle, thereby increasing the spray range and flow rate, which is beneficial to improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is a diagram of the entire cleaning machine of Example 1;

[0043] FIG2 is a schematic diagram of the waterway structure of a cleaning machine according to the first embodiment;

[0044] FIG3 is an exploded view of the cleaning machine of Example 1;

[0045] FIG4 is a structural diagram of a base in a cleaning machine according to an embodiment of the present invention;

[0046] FIG5 is a diagram showing the internal structure of the base of the cleaning machine in Example 1;

[0047] FIG6 is a structural diagram of a switching valve in a cleaning machine according to the first embodiment;

[0048] FIG7 is a cross-sectional view of a switching valve in a cleaning machine according to the first embodiment along a certain direction;

[0049] FIG8 is a cross-sectional view of the switching valve in the cleaning machine according to the first embodiment taken in another direction;

[0050] FIG9 is a structural diagram of a pump in a cleaning machine according to an embodiment of the present invention;

[0051] FIG10 is a partial cross-sectional view of the pump in the cleaning machine of Example 1;

[0052] FIG11 is an exploded view of the pump structure of the cleaning machine in Example 1;

[0053] FIG12 is a partial structural diagram of a pump in a cleaning machine according to the first embodiment;

[0054] FIG13 is a structural diagram of the cooperation of two boxes in the cleaning machine of Example 1;

[0055] Figure 14 is a structural diagram of the first box in the cleaning machine of Example 1;

[0056] FIG15 is a structural diagram of the second box in the cleaning machine of Example 1.

[0057] In the figure, 100-base, 110-accommodation cavity, 120-seat shell, 130-seat cover, 131-platform, 132-step surface, 133-convex edge, 140-water inlet connector, 141-first water inlet connector, 142-second water inlet connector, 150-notch, 160-lock buckle, 200 - water tank, 210 - first box body, 211 - first outlet, 212 - first one-way valve, 213 - protrusion, 214 - first buckle, 215 - first recess, 216 - first liquid filling port, 217 - first cover, 220 - second box body, 221 - second outlet, 222 - second one-way valve, 223 - avoidance portion, 224 - second buckle, 225 - groove, 226 - hinged column, 227 - second recess, 228 - second liquid filling port, 229 - second cover, 230 - handle, 231 - hinged hole, 10A - locking structure, 300 - pump, 310 - pump body, 311 - pump chamber, 312 - liquid inlet, 313 - liquid outlet, 314 - piston chamber, 315 - liquid inlet pipe, 316-Liquid outlet pipe, 316-Pump housing, 317-Pump cover, 318-Inflow pipe, 319-Outflow pipe, 3120-Pressure relief port, 3121-Pressure relief pipe, 320-Piston, 330-Transmission structure, 331-Deflection plate, 332-Casing, 3321-First housing, 3322-Second housing, 333-Inner ring gear, 334-Bracket, 335-Planet gear, 336-Transmission head, 3361-Protruding shaft, 3362-Boss, 3363-Inclined surface, 340-Motor, 341-Rotating shaft, 342-Sun gear, 350-Spring, 410-Nozzle, 420-Bellows, 500-Switching valve, 510-Liquid inlet channel, 511-First liquid inlet channel, 512-Second liquid inlet channel, 520-Liquid outlet channel, 530-valve ball, 531-middle channel, 532-handle, 540-valve body, 541-liquid outlet, 550-first liquid inlet, 560-second liquid inlet, 570-core, 571-connecting hole, 610-operating part, 620-connecting part, 630-indicating area, 640-switch, 650-water volume adjustment part, 710-battery pack, 720-seat, 730-cover, 740-magnet, 800-control board. DETAILED DESCRIPTION

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following terms indicating orientations or positional relationships, such as "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," are based solely on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0059] Example 1

[0060] 1 to 15 , a cleaning machine provided in a first embodiment of the present invention includes a base 100, a water tank 200 detachably mounted on the base 100, and a pump 300 for pumping liquid in the water tank 200 to a nozzle 410. At least two water tanks 200 are provided, and each water tank 200 is detachably mounted on the base 100. A switching valve 500 for switching the pumping path is provided between the pump 300 and the water tank 200. The switching valve 500 is provided with a liquid inlet channel 510 that can communicate with the corresponding water tank 200 and a liquid outlet channel 520 that communicates with the pump 300. The pump 300 and the switching valve 500 are disposed within the base 100.

[0061] The pumping path can be switched through the switching valve 500, and each water tank 200 can contain different liquids. The user can switch the pumping path according to cleaning needs, so that the pump 300 can pump the liquid in the corresponding water tank 200 to the nozzle 410. The user does not need to replace the liquid in the water tank 200 during the cleaning process, and the remaining cleaning liquid can also be temporarily stored in the water tank 200, saving cleaning liquid while improving the user experience.

[0062] An operating member 610 for operating the switching valve 500 is provided on the outside of the base 100. A recessed cavity 110 is provided on the top of the base 100 for storing the spray head 410. When not in use, the spray head 410 can be stored in the cavity 110. This position prevents damage to the spray head 410 from collision with other objects, thereby extending the life of the spray head 410.

[0063] 1 and 3 , in this embodiment, two water tanks 200 are provided, and the water tanks 200 include a first tank body 210 and a second tank body 220 that are independent of each other. The first tank body 210 and the second tank body 220 are detachably mounted side by side on the base 100, and a locking structure 10A is provided between the base 100 and the two tank bodies. The switching valve 500 is provided between the pump 300 and the two tank bodies and is used to switch the pumping passage.

[0064] 3 , in this embodiment, the base 100 is generally in the shape of a rectangular box. For ease of description, in this embodiment, the length direction of the base 100 is referred to as the left-right direction, and the width direction of the base 100 is referred to as the front-back direction.

[0065] 6 , 7 , and 8 , in this embodiment, the switching valve 500 includes two spaced-apart liquid inlet channels 510 and a valve ball 530 rotatably disposed between the two liquid inlet channels 510. The valve ball 530 includes an intermediate channel 531 for connecting the liquid outlet channel 520 with one of the liquid inlet channels 510. The operating member 610 is connected to the valve ball 530. Specifically, the two liquid inlet channels 510 are a first liquid inlet channel 511 and a second liquid inlet channel 512. The first liquid inlet channel 511 can be connected to the first housing 210, and the second liquid inlet channel 512 can be connected to the second housing 220. The switching valve 500 includes a hollow valve body 540, a first liquid inlet head 550 connected to one end of the valve body 540, a second liquid inlet head 560 connected to the other end of the valve body 540, a liquid outlet head 541 protruding outward from the valve body 540, a core body 570 arranged in the valve body 540, and a valve ball 530 rotatably arranged in the core body 570. The first liquid inlet channel 511 is arranged on the first liquid inlet head 550, and the second liquid inlet channel 512 is arranged on the second liquid inlet head 560. The first liquid inlet channel 511 and the second liquid inlet channel 512 are spaced apart along the axial direction of the valve body 540. The liquid outlet head 541 is arranged between the two liquid inlet heads and the liquid outlet head 541 protrudes outward along a certain radial direction of the valve body 540. The liquid outlet channel 520 is arranged on the liquid outlet head 541. The intermediate channel 531 on the valve ball 530 is L-shaped, and one end of the L-shaped intermediate channel 531 is always connected to the liquid outlet channel 520, and the other end of the L-shaped intermediate channel 531 can be connected to the first liquid inlet channel 511 or the second liquid inlet channel 512, or can be connected to neither liquid inlet channel 510. The core body 570 has connecting holes 571 at both axial ends for connecting the liquid inlet channels 510 at the corresponding ends with the intermediate channel 531. The rotation centerline of the valve ball 530 is perpendicular to the axial direction of the connecting hole 571, and the valve ball 530 is provided with a handle 532 extending out of the valve body 540. The operating member 610 is rotatably disposed on the side wall of the base 100 and is connected to the handle 532 through the connecting member 620. The user can rotate the valve ball 530 through the operating member 610 to connect the intermediate channel 531 to the first liquid inlet channel 511 and the liquid outlet channel 520, or to connect the intermediate channel 531 to the second liquid inlet channel 512 and the liquid outlet channel 520, or to stagger the intermediate channel 531 with both liquid inlet channels 510 to cut off any liquid inlet channel 510 and the liquid outlet channel 520.

[0066] 4 , the base 100 includes a base shell 120 and a base cover 130 fixed to the top side of the base shell 120. The receiving chamber 110 is formed by a recess in the base cover 130. The cleaning machine also includes a battery pack 710 for power supply. The battery pack 710 is removably mounted within the base 100. To prevent adverse effects on the battery pack 710 caused by leakage from the pump 300 or the switching valve 500, in this embodiment, the pump 300 and the switching valve 500 are located at the right end of the base 100, while the battery pack 710 is located at the left end of the base 100, thereby keeping the battery pack 710 as far away from the pump 300 and the switching valve 500 as possible. Accordingly, to facilitate the arrangement of the water connection structure, the right end of the base cover 130 has a platform portion 131. The platform portion 131 is provided with water inlet connectors 140 corresponding to each water tank 200. The left end of the base cover 130 is recessed to form the receiving chamber 110.

[0067] 13 , in this embodiment, a first outlet 211 is provided at the right end of the bottom wall of the first housing 210, and a first one-way valve 212 is provided at the first outlet 211. A second outlet 221 is provided at the right end of the bottom wall of the second housing 220, and a second one-way valve 222 is provided at the second outlet 221. Accordingly, two water inlet connectors 140 are provided on the platform portion 131 of the cover plate 730, spaced apart from each other. One of the first water inlet connectors 141 is adapted to interface with the first one-way valve 212, and the other is adapted to interface with the second one-way valve 222. The first water inlet connector 141 is connected to the first liquid inlet head 550 of the switching valve 500 via a flexible hose, and the second water inlet connector 142 is connected to the second liquid inlet head 560 of the switching valve 500 via a flexible hose.

[0068] 5 , to install the battery pack 710, a compartment 720 for accommodating the battery pack 710 is provided at the left end of the base 100. The front side of the compartment 720 is open and faces the front sidewall of the base 100. The front sidewall of the base 100 is provided with an opening corresponding to the open side of the compartment 720. The compartment 720 is secured to the base 100 by screws. To prevent external contaminants such as liquids and dust from entering the compartment 720, a cover 730 is provided on the front sidewall of the base 100 for opening and closing the open side of the compartment 720. The top side of the cover 730 is hinged to the front sidewall of the base 100. Rotating the cover 730 upward opens the open side of the compartment 720, and rotating it downward until it is vertical closes the open side of the compartment 720. In this embodiment, a magnetic attraction structure is provided between the cover 730 and the base 100. Specifically, a plurality of magnets 740 are provided on the underside of the cover 730. The magnets 740 can magnetically engage with the screws used to secure the housing 720. The magnetic attraction between the magnets 740 and the screws improves the stability of the cover 730 when closing the open side of the housing 720. It is understood that an iron block can also be provided on the open side of the housing 720, and the magnets 740 can magnetically engage with the iron block to maintain the cover 730 in a stable closed state. Of course, the magnets 740 can also be provided on the open side of the housing 720, and iron blocks corresponding to the magnets 740 can be provided on the cover 730.

[0069] 4 , in this embodiment, to allow the user to access the showerhead 410 while the water tank 200 is mounted on the base 100, a notch 150 communicating with the receiving chamber 110 is provided on the rear sidewall of the base 100. The notch 150 and the cover 730 are located on the front and rear sidewalls of the base 100, respectively, to ensure that the showerhead 410 is accessed and placed as far away from the open side of the housing 720 as possible. This prevents residual dripping liquid from the showerhead 410 from flowing into the housing 720 through the gap between the cover 730 and the sidewall of the base 100 and adversely affecting the battery pack 710. Specifically, since the receiving chamber 110 is located at the left end of the cover 730, the notch 150 is preferably located on the top side of the left end of the rear sidewall of the base 100.

[0070] 9, 10, 11 and 12, the pump 300 in this embodiment preferably adopts a three-plunger pump. The pump 300 includes a pump body 310, three pistons 320, a transmission structure 330, a motor 340 and a spring 350. The pump body 310 is provided with a pump chamber 311, a liquid inlet 312 for connecting the pump chamber 311 with the liquid outlet channel 520, a liquid outlet 313 for connecting the pump chamber 311 with the nozzle 410, three piston chambers 314 that can be connected to the pump chamber 311, and three pistons 320 that can be connected to the pump chamber 311. Axially movable inserts are disposed in corresponding piston cavities 314. A transmission structure 330 is disposed between the motor 340 and the pistons 320 and includes a deflection plate 331. The deflection plate 331 has an axial deflection angle γ relative to the axial direction of the motor 340. The rear ends of the three pistons 320 abut against the deflection plate 331. The motor 340 drives the three pistons 320 to actuate out of phase through the transmission structure 330. Each piston 320 is sheathed with a spring 350, one end of which is positioned for positioning and the other end of which contacts the piston 320. The spring 350 is configured to deform under force when the deflection plate 331 drives the piston 320 toward the pump cavity 311, and to drive the piston 320 away from the pump cavity 311 when the deflection plate 331 releases the piston 320. Specifically, the pump body 310 includes a pump casing 316 and a pump cover 317 fixed to one end of the pump casing 316. The pump chamber 311 is formed by the pump casing 316 and the pump body 310. The liquid inlet 312 and the liquid outlet 313 are both connected to the pump chamber 311. A one-way valve (not shown in the figure) is provided between each piston chamber 314 and the pump chamber 311. The one-way valve is closed when the piston 320 moves back to the pump chamber 311 to allow liquid to flow from the liquid inlet 312 into the piston chamber 314. The one-way valve opens when the piston 320 moves toward the pump chamber 311 to allow the liquid in the piston chamber 314 to flow through the pump chamber 31 to the liquid outlet 313. The motor 340 and transmission structure 330 are located on the side of the pump housing 316 facing away from the pump cover 317. The transmission structure 330 includes a housing 332 located between the pump body 310 and the motor 340. The housing 332 includes a first housing 3321 and a second housing 3322 fixed together. A planetary gear structure and a transmission head 336 are located within the housing 332. The motor 340 has a rotating shaft 341, with a sun gear 342 disposed at the end of the rotating shaft 341. The planetary gear structure includes an inner ring gear 333 fixed within the housing 332 and a plurality of planetary gears 335 located on the inner circumference of the inner ring gear 333 via a bracket 334. Each planetary gear 335 is externally meshed with the sun gear 342 and internally meshed with the inner ring gear 333. The transmission head 336 is provided with a protruding shaft 3361 protruding toward the planetary gear structure, and the protruding shaft 3361 is fixed to the bracket 334. The transmission head 336 is also provided with a boss 3362 protruding toward the piston 320 and a bevel 3363 located on the outer periphery of the boss 3362. The deflection plate 331 is sleeved on the outer periphery of the boss 3362 and abuts against the bevel 3363. The deflection plate 331 includes two oppositely arranged discs and a roller arranged between the two discs.The axial direction of the transmission head 336 is parallel to the axial direction of the motor 340. The angle between the axial direction of the deflection plate 331 and the axial direction of the transmission head 336 is the deflection angle γ. Line X1 in Figure 10 represents the axial direction of the transmission head 336 and the rotating shaft 341, and line X2 represents the axial direction of the deflection plate 331. The angle between lines X1 and X2 is the deflection angle γ. The deflection angle γ can be set to a suitable value such as 5°, 6°, 7°, 8°, 9°, or 10°. Three pistons 320 are evenly spaced along the circumference. One end of each piston 320 contacts the deflection plate 331, and the other end of each piston 320 is inserted into the corresponding piston cavity 314. One end of the spring 350 contacts the pump body 310 to achieve positioning. The other end of the spring 350 is wrapped around the annular groove on the piston 320 to contact the piston 320. The spring 350 is in a compressed state. When the motor 340, through the transmission structure 330, drives the piston 320 toward the pump chamber 311, overcoming the preload of the spring 350 and further compressing the spring 350, the pressure within the piston chamber 314 increases, the one-way valve opens, and the liquid within the piston chamber 314 flows through the pump chamber 311 toward the liquid outlet 313. When the deflection plate 331 releases the piston 320, the spring 350, having restored its deformation, forces the piston 320 to move away from the pump chamber 311, reducing the pressure within the piston chamber 314. Under the influence of negative pressure, the liquid within the water tank 200 flows through the switching valve 500, the pipeline, and the liquid inlet 312 into the piston chamber 314. It is understood that the sun gear 342 can be integrally formed with the rotating shaft 341, or it can be separately formed and fixedly mounted on the rotating shaft 341. It is understood that the pump 300 can also be a single-plunger pump or a dual-plunger pump. It is understood that the one-way valve can employ an existing valve structure.

[0071] The pump body 310 is provided with an outwardly protruding inlet pipe 318 and an outlet pipe 319. The liquid inlet 312 is connected to the inlet pipe 318, and the liquid outlet 313 is connected to the outlet pipe 319. The liquid inlet pipe 315 is connected to the liquid outlet head 541 of the switching valve 500 via a flexible tube. The outlet pipe 319 is preferably connected to the nozzle 410 via a bellows 420. When not in use, the bellows 420 and the nozzle 410 can be placed simultaneously in the receiving chamber 110.

[0072] In order to avoid excessive pressure in the pump chamber 311, the pump body 310 is also provided with a pressure relief port 3120 connected to the pump chamber 311, and a pressure relief valve (not shown in the figure) is provided at the pressure relief port 3120. When the pressure in the pump chamber 311 is less than the pressure relief preset value, the pressure relief valve is in a closed state, and the liquid in the pump chamber 311 cannot flow out from the pressure relief port 3120. When the pressure in the pump chamber 311 reaches the pressure relief preset value, the pressure relief valve opens, and the liquid in the pump chamber 311 can flow out from the pressure relief port 3120. In this embodiment, the pump body 310 is provided with a pressure relief pipe 3121 connected to the pressure relief port 3120, and the pressure relief pipe 3121 can be connected to a hose for connecting a certain water inlet connector 140 with the corresponding liquid inlet channel 510. It can be understood that the pressure relief valve can adopt an existing one-way valve structure.

[0073] 5 , in this embodiment, a control panel 800 is also provided within the base 100. The control panel 800 and the battery pack 710 are located at the same end within the base 100, further positioning the control panel 800 away from the pump 300 and the switching valve 500. Specifically, the control panel 800 is located in the gap between the rear wall of the housing 720 and the rear wall of the base 100. The motor 340 of the pump 300 is controlled by the control panel 800. An operating member 610 is provided on the front wall of the base 100. An indicator area 630, corresponding to the operating member 610 and used to indicate the status of the pumping path, is also provided on the front wall of the base 100. Furthermore, a switch 640 for starting and stopping the machine and a water volume adjustment member 650 for adjusting the spray intensity are also provided on the front wall of the base 100. The battery, switch 640, water volume adjustment member 650, and other electrical components are electrically and / or signal-connected to the control panel 800. In this embodiment, the water volume adjustment member 650 is used to adjust the current of the motor 340 , thereby adjusting the pumping intensity of the pump 300 .

[0074] 3 , in this embodiment, the volume of the first housing 210 is smaller than that of the second housing 220, and the volume ratio of the first housing 210 to the second housing 220 is 1:1.5 to 1:8. Accordingly, the outer dimensions of the first housing 210 are smaller than those of the second housing 220. Specifically, the volume of the first housing 210 is approximately 2L, and the volume of the second housing 220 is approximately 6L, resulting in a volume ratio of approximately 1:3. It is understood that the volume of the first housing 210 to the second housing 220 can also be set to other reasonable values, and the volume ratio between the first housing 210 and the second housing 220 can also be set to other reasonable values, such as 1:1.5, 1:2, 1:2.5, 1:2.8, 1:3.2, 1:4, 1:4.5, 1:5, 1:5.5, 1:6, 1:6.5, 1:7, 1:7.5, 1:8, or other reasonable values.

[0075] In this embodiment, the lengths of the first housing 210, the second housing 220, and the base 100 are substantially identical, and the width of the first housing 210 is smaller than the width of the second housing 220. The sum of the widths of the first housing 210 and the second housing 220 is substantially identical to the width of the base 100, allowing the first housing 210 and the second housing 220 to be mounted side by side on the base 100 along the width direction (i.e., the front-to-back direction). The overall circumferential shape of the water tank 200 is substantially identical to that of the base 100 and both are roughly rectangular, resulting in a rectangular box-like structure for the entire device.

[0076] With reference to Figures 14 and 15 , to ensure stable placement of the first housing 210, a protrusion 213 is provided at the bottom of the first housing 210, projecting in the width direction toward the second housing 220. A relief portion 223 is provided at the bottom of the second housing 220 to avoid the protrusion 213. When mounted on the base 100, the first and second housings 210 and 220 mate with the protrusion 213 and the relief portion 223. The protrusion 213 can be used to appropriately increase the width of the bottom of the first housing 210, ensuring stability when the first housing 210 is independently placed. In this embodiment, the width of the lower portion of the first housing 210 and the width of the lower portion of the second housing 220 are substantially the same, and both are approximately half the width of the base 100. It is understood that the width of the lower portion of the first housing 210 can also be set to be smaller than the width of the lower portion of the second housing 220.

[0077] The left and right side walls of the first housing 210 are each provided with a first latch 214 protruding outward, and the left and right side walls of the second housing 220 are each provided with a second latch 224 protruding outward. The top sides of the left and right opposing side walls of the base 100 are each provided with a lock 160. When the first housing 210 and the second housing 220 are installed side by side on the base 100, the first latch 214 and the second latch 224 are closely attached together, and the lock 160 can be engaged with both the first latch 214 and the second latch 224 simultaneously, which helps to reasonably simplify the structure of the lock 160 and also reasonably reduce the number of steps required for the user to lock the housing. It is understood that the specific structure of the lock 160 can refer to existing tilting locks or sliding locks and will not be described in detail here.

[0078] To enhance the structural stability of the water tank 200 when mounted on the base 100, the base cover 130 is provided with a stepped surface 132 on the outer periphery of the receiving chamber 110. The stepped surface 132 is flush with the platform 131. The base cover 130 is also provided with a flange 133 projecting upward from the outer edge. The flange 133 is located around the platform 131 and the stepped surface 132. When the first and second tank bodies 210 and 220 are mounted side by side on the base 100, the flange 133 is located outside the two tank bodies, thereby restraining them laterally. The right ends of the two tank bodies contact the platform 131 for vertical support, while the left ends of the two tank bodies contact the stepped surface 132 for vertical support, thereby enhancing the structural stability of the two tank bodies when mounted on the base 100.

[0079] Referring to Figure 15 , to facilitate user handling of the device, a handle 230 is hingedly connected to the top of the second housing 220. The handle 230 and the second housing 220 have two hinges spaced apart along the length, with the two hinges located centrally across the width. The proper arrangement of the two hinges between the handle 230 and the second housing 220 ensures that the device remains balanced when the user lifts it by the handle 230. In this embodiment, a recessed groove 225 is formed on the top side of the second housing 220 to accommodate a handle 230. A leftward-projecting hinge post 226 is provided on the left side of the recess 225, and a rightward-projecting hinge post 226 is provided on the right side of the recess 225. The axes of the left and right hinge posts 226 approximately coincide. The handle 230 is generally U-shaped, with hinge holes 231 at each end of the U-shape that engage with the hinge posts 226. The handle 230 is pivotally connected to the top side of the second housing 220 through the engagement of the hinge holes 231 with the hinge posts 226. The two hinge posts 226 are located approximately at the center of the entire device in the front-to-back direction, placing the hinge point between the handle 230 and the second housing 220 at the center of the width of the device. When normally located, the handle 230 is housed in the recess 225, ensuring that it does not substantially protrude from the top surface of the second housing 220, thereby minimizing the overall height of the device.

[0080] 14 and 15 , in this embodiment, the top wall of the first housing 210 is provided with a first recessed portion 215 at the left-right center, with a first liquid injection port 216 located in the first recessed portion 215. The first housing 210 is also provided with a first cover 217 for opening and closing the first liquid injection port 216, with a vent located in the first cover 217. The top wall of the second housing 220 is provided with a second recessed portion 227 at the left-right center, with a second liquid injection port 228 located in the second recessed portion 227. The second housing 220 is also provided with a second cover 229 for opening and closing the second liquid injection port 228, with a vent located in the second cover 229.

[0081] During use, a dirt-decomposing cleaning liquid is added to the first tank 210, and clean water is added to the second tank 220. The first and second tanks 210, 220 are then mounted side by side on the base 100. The first and second latches 214, 224 are engaged using the latch 160. The one-way valve on the bottom wall of the tank is opened by engaging the corresponding water inlet connector 140. The user can adjust the flow path of the switching valve 500 using the operating member 610 according to cleaning needs. The pump 300 then operates to pump the liquid in the corresponding tank to the spray head 410. For example, the liquid outlet channel 520 of the switching valve 500 can be connected to the first liquid inlet channel 511. At this time, the pump 300 operates to pump the cleaning liquid in the first tank 210 under pressure to the nozzle 410. The user sprays the cleaning liquid from the nozzle 410 onto the object to be rinsed so that the cleaning liquid can first break down the dirt. Then, the switching valve 500 is adjusted through the operating member 610 to connect the liquid outlet channel 520 with the second liquid inlet channel 512. The pump 300 operates to pump the clean water in the second tank 220 under pressure to the nozzle 410. The clean water sprayed from the nozzle 410 can rinse the dirt. After cleaning, the liquid in the tank can be poured out or temporarily retained in the tank.

[0082] It is understandable that the number of tank bodies of the water tank 200 is not limited to the two recorded above, and can also be set to three, four or other reasonable numbers. Accordingly, the specific number of liquid inlet channels 510 on the switching valve 500 is determined according to the number of tank bodies.

[0083] It is understandable that the lock 160 on the base 100 can be separately provided corresponding to the first buckle 214 and the second buckle 224 , that is, a first lock is provided corresponding to the first buckle 214 , and a second lock is provided corresponding to the second buckle 224 .

[0084] It is understandable that rollers can be provided at the bottom of the base 100 to facilitate users to easily move the entire device.

[0085] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A cleaning machine, comprising a base (100), a water tank (200) detachably mounted on the base (100), and a pump (300) for pumping liquid (300) in the water tank (200) to a nozzle (410), characterized in that: The water tanks (200) are provided with at least two and each water tank (200) is detachably mounted on the base (100); a switching valve (500) for switching a delivery passage of the pump (300) is provided between the pump (300) and the water tank (200); the switching valve (500) is provided with a liquid inlet channel (510) that can communicate with the corresponding water tank (200) and a liquid outlet channel (520) that communicates with the pump (300); the pump (300) and the switching valve (500) are arranged in the base (100).

2. A cleaning machine according to claim 1, characterized in that: The water tank (200) comprises a first box body (210) and a second box body (220) which are independent of each other. The first box body (210) and the second box body (220) are installed side by side on a base (100). A locking structure (10A) is provided between the base (100) and the two boxes.

3. A cleaning machine according to claim 2, characterized in that: The width of the first box body (210) is smaller than the width of the second box body (220); a protrusion (213) protruding toward the second box body (220) in the width direction is provided at the bottom of the first box body (210); a avoidance portion (223) for avoiding the protrusion (213) is provided at the bottom of the second box body (220); the first box body (210) and the second box body (220) mounted on the base (100) make the protrusion (213) match with the avoidance portion (223).

4. A cleaning machine according to claim 3, characterized in that: The first box body (210) and the second box body (220) are installed side by side on the base (100) along the width direction.

5. The cleaning machine according to claim 2, characterized in that: The length of the first box body (210) is consistent with the length of the second box body (220); a first one-way valve (212) is provided on the bottom wall of the first box body (210); a second one-way valve (222) is provided on the bottom wall of the second box body (220); the first one-way valve (212) and the second one-way valve (222) are arranged at the same end in the length direction.

6. The cleaning machine according to claim 5, characterized in that: The base (100) comprises a base shell (120) and a base cover (130) fixed to the top side of the base shell (120); one end of the base cover (130) is provided with a platform portion (131), and the other end is concave to form a receiving cavity (110); a first water inlet joint (141) corresponding to a first one-way valve (212) and a second water inlet joint (142) corresponding to a second one-way valve (222) are provided on the platform portion (131); and a step surface (132) having the same height as the platform portion (131) is provided on the outer periphery of the receiving cavity (110).

7. The cleaning machine according to claim 4, characterized in that: The first box body (210) is provided with a first buckle (214) protruding outward on two opposite side walls perpendicular to the length direction, the second box body (220) is provided with a second buckle (224) protruding outward on two opposite side walls perpendicular to the length direction, and the base (100) is provided with a lock buckle (160) on two opposite side walls perpendicular to the length direction, and the lock buckle (160) can simultaneously buckle the first buckle (214) and the second buckle (224).

8. The cleaning machine according to claim 4, characterized in that: A handle (230) is hingedly connected to the top side of the second box body (220), and two hinges are arranged between the handle (230) and the second box body (220) at intervals along the length direction, and the two hinges are located at the center in the width direction.

9. The cleaning machine according to claim 8, characterized in that: The top side of the second box body (220) is provided with a recess (225) which is concave and used to accommodate the handle (230).

10. The cleaning machine according to claim 2, characterized in that: The volume of the first box (210) is smaller than the volume of the second box (220), and the volume ratio of the first box (210) to the second box (220) is 1:1.5 to 1:

8.

11. A cleaning machine according to claim 1, characterized in that: An operating member (610) for operating the switching valve (500) is provided on the outer side of the base (100), and a receiving cavity (110) is provided on the top of the base (100) and is concavely formed and used to store the spray head (410).

12. A cleaning machine according to claim 11, characterized in that: The base (100) comprises a base shell (120) and a base cover (130) fixed to the top side of the base shell (120), and the receiving cavity (110) is formed by the base cover (130) being recessed.

13. A cleaning machine according to claim 1, characterized in that: The cleaning machine comprises a battery pack (710) which is detachably mounted in a base (100); a pump (300) and a switching valve (500) are arranged at one end of the base (100); and the battery pack (710) is arranged at the other end of the base (100).

14. A cleaning machine according to claim 13, characterized in that: The base (100) is provided with a compartment (720) for accommodating a battery pack (710); one side of the compartment (720) faces the side wall of the base (100) and is open; a cover plate (730) for opening and closing the compartment (720) is hingedly connected to the side wall of the base (100); and a notch (150) communicating with the accommodating cavity (110) is provided on another side wall of the base (100) opposite to the side wall of the base (100) on which the cover plate (730) is provided.

15. A cleaning machine according to claim 14, characterized in that: A switch (640) and / or a water volume adjustment member (650) is also provided on the side wall of the base (100) provided with the cover plate (730).

16. A cleaning machine according to claim 13, characterized in that: The cleaning machine comprises a control panel (800) arranged in a base (100), and the control panel (800) and the battery pack (710) are arranged at the same end in the base (100).

17. A cleaning machine according to claim 1, characterized in that: The water tank (200) is provided with two switching valves (500) having two spaced-apart liquid inlet channels (510) and a valve ball (530) rotatably arranged between the two liquid inlet channels (510); the valve ball (530) is provided with an intermediate channel (531) for connecting the liquid outlet channel (520) with one of the liquid inlet channels (510); and the operating member (610) is connected to the valve ball (530).

18. A cleaning machine according to claim 17, characterized in that: The middle channel (531) on the valve ball (530) is L-shaped, and one end of the middle channel (531) can be connected to one of the liquid inlet channels (510), and the other end can be connected to the liquid outlet channel (520).

19. A cleaning machine according to claim 1, characterized in that: The pump (300) comprises a pump body (310), three pistons (320), a transmission structure (330), a motor (340) and a spring (350). The pump body (310) is provided with a pump chamber (311), a liquid inlet (312) for connecting the pump chamber (311) with a switching valve (500), a liquid outlet (313) for connecting the pump chamber (311) with a spray head (410), and three piston chambers (314) connected with the pump chamber (311). The three pistons (320) are axially movably inserted in the corresponding piston chambers (314). The transmission structure (330) is arranged between the motor (340) and the pistons (320) and comprises a deflection plate (331). The axial direction of the deflection plate (331) has a deflection angle γ relative to the axial direction of the motor (340). The rear ends of the three pistons (320) abut against the deflection plate (331). The motor (3 40) The three pistons (320) are driven to actuate out of phase through a transmission structure (330), and a spring (350) is sleeved on the outside of each piston (320), with one end being positioned and the other end being in contact with the piston (320). The spring (350) is configured to deform when the deflection plate (331) drives the piston (320) to move toward the pump chamber (311), and drives the piston (320) to move away from the pump chamber (311) when the deflection plate (331) releases the piston (320).

Images