CN210902841U - Primary and secondary water tank and wet-type ground cleaning equipment with primary and secondary water tanks - Google Patents

Abstract

A master-slave water tank for a wet floor cleaning appliance comprising: the sewage treatment device comprises a mother water tank, a sewage treatment tank and a sewage treatment tank, wherein the mother water tank is suitable for containing sewage, a first inlet, a first outlet and a third outlet are arranged at the upper part of the mother water tank, and the third outlet is a pouring opening; the secondary water tank is arranged in the primary water tank and is suitable for containing clean water, a second inlet is formed in the top of the secondary water tank, and a second outlet is formed in the bottom of the secondary water tank; the sub-water tank with the inside not direct intercommunication of mother water tank, the volume of sub-water tank is variable, the utility model discloses a flexible material and the adjustable sub-of reset element component volume developments, mother water tank structure need not intervene by the circuit unit, and simple, convenient optimization wet-type ground cleaning equipment is with water tank structural design occupation space too big problem.

Description

Primary and secondary water tank and wet-type ground cleaning equipment with primary and secondary water tanks

Technical Field

The utility model belongs to domestic cleaning device field relates to a cleaning device's annex and this cleaning device, especially relates to a primary and secondary water tank of wet-type ground cleaning device adapted.

Background

Along with the improvement of living standard of materials, the requirements of people on the household environment are higher and higher, and various household electrical appliances appear on the market in order to meet the increasing needs of people. Floor cleaning devices have found many applications in homes, hotels, etc. as a cleaning appliance. Floor cleaning devices are suitable for cleaning hard floor surfaces (e.g., tile, hardwood, laminate, vinyl, linoleum) and soft floor surfaces (e.g., carpet and upholstery), the primary functions being cleaning, mopping, recycling, etc. Existing floor cleaning appliances are usually provided with a dust collecting box and a water tank for these main functions, which can be used either in combination or separately. Accordingly, the floor cleaning apparatus needs to be provided with a water supply assembly including a cleaning liquid tank, a sewage recovery assembly including a recovery liquid tank, and a roll brush, a mop, etc. for sucking or washing the floor.

The prior art floor cleaning machine has no barrier on the simple realization of the functions of cleaning, floor brushing, recycling and the like, but still has defects in the aspects of the reasonability of the arrangement of the whole structure, the structure of each part, the convenience of operation in use and the like. For example, since the user group of the floor cleaning device is usually housewives, if the device is designed to be too large and heavy, although the cleaning effect is good, there are problems of not flexible enough and inconvenient use. In addition, in these wet cleaning apparatuses, the water tank tends to occupy a large volume and weight. In order to meet the requirement of housewives on cleaning the whole house by one-time water injection, the clear water tank is usually required to be arranged as large as possible, but in the prior art, the volumes of the clear water tank and the sewage tank are inconvenient to fix, adaptability is high, the sewage tank is required to be arranged with a large volume for accommodating the sewage exhausted from the clear water tank, and the arrangement can not only increase the whole space volume and the manufacturing cost of the whole machine, but also is not beneficial to the flexible use of ground cleaning equipment.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem in the prior art, the utility model provides a wet-type ground is primary and secondary water tank for cleaning equipment, its beneficial effect as follows:

firstly, the primary and secondary water tanks are arranged inside and outside, so that the volumes of the primary water tank and the secondary water tank can be dynamically adjusted under the condition that the total volume is not changed, a circuit unit is not required to be involved, and the problem that the structural design of the water tank for the wet-type ground cleaning equipment occupies too large space is simply, conveniently and quickly optimized;

secondly, the ingenious design of flexible material and reset element is adopted, the problem that the secondary water tank can not be retracted well and swing too much due to the anisotropy of buoyancy when the primary water tank is full of water is solved, and the volume adjustment of the secondary water tank and the primary water tank is simple and convenient.

Thirdly, the special fluid channel design of the sub water tank and the main water tank is adopted, so that the inlet and outlet pipelines of clean water and sewage are separated orderly, and the continuous work of the ground cleaning equipment is guaranteed.

The utility model provides a wet-type ground is primary and secondary water tank for cleaning equipment, include: the sewage treatment device comprises a mother water tank, a first sewage treatment device, a second sewage treatment device and a sewage treatment device, wherein the mother water tank is suitable for containing sewage, a first inlet, a first outlet and a third outlet are arranged at the upper part of the mother water tank, and the third outlet is a pouring opening and is suitable for pouring the sewage after the mother water tank is taken out from a ground cleaning device; the secondary water tank is arranged in the primary water tank and is suitable for containing clean water, a second inlet is formed in the top of the secondary water tank, and a second outlet is formed in the bottom of the secondary water tank; the sub water tank and the mother water tank are not directly communicated, and the volume of the sub water tank is variable.

In some embodiments, the sub tank may expand in volume when the inside of the sub tank is filled with clean water, and contract in volume when the sub tank is drained of clean water.

In some embodiments, the sub water tank is provided with a reset component which can assist the sub water tank to restore the deformation after the water flow is discharged.

In some embodiments, the reset component is a snap spring.

In some embodiments, the return assembly is at least two springs connected end to end.

In some embodiments, the reset component is fixedly sleeved at the position where the outer diameter of the sub-water tank is the largest after the sub-water tank is filled with clear water.

In some embodiments, the system further comprises a first regulating valve assembly, which is arranged in the mother water tank and is configured to prevent the sewage in the mother water tank from leaking/entraining and flowing out from the first outlet.

In some embodiments, the floor cleaning appliance further comprises a second regulating valve assembly disposed at the second outlet and adapted to control the amount and speed of water flowing out of the sub-tank to prevent excessive outflow or to prevent water leakage from the sub-tank when the main tank is removed from the floor cleaning appliance.

In some embodiments, the second regulator valve assembly includes a valve seat, a valve stem movably coupled to the valve seat, a spring movably coupled to the valve stem, and a gasket movably covering the second outlet; a hollow bracket is arranged in the valve seat and forms a water passage; the valve rod abuts against and pushes the sealing gasket to movably cover the second outlet so as to seal or open the second outlet, so that water in the sub-water tank flows out through the water passage, and the protrusion abutting against the valve rod is arranged on the wet-type ground cleaning equipment, so that when the sub-water tank and the main water tank are installed on the wet-type ground cleaning equipment, the protrusion abuts against the valve rod and then controls the sealing gasket to move so as to open the second fluid channel, and water flow conveying is realized.

In some embodiments, the second regulator valve assembly includes a trigger reed switch electrically connected to the wet floor cleaning unit, an energizing magnetic strip electrically connected to the trigger reed switch, a valve plug, and a gasket connected to the valve plug and movably covering the second outlet.

In some embodiments, the maximum capacity of the sub-tanks is 500ml to 600 ml.

In some embodiments, when the amount of water in the secondary water tank is 0 or close to 0ml, the water level in the primary water tank does not exceed half of the height of the primary water tank, and therefore, sewage in the primary water tank is prevented from flowing out of the first outlet into the cleaning equipment to cause circuit damage due to rolling of the device or excessive suction of a suction source.

In some embodiments, the first outlet is located at a position higher than a highest water level position in the mother water tank.

In some embodiments, an air filter is disposed at the first outlet location to filter the air flow from the first fluid passageway to reduce damage to the suction source.

In some embodiments, the primary water tank is provided with a handle, so that the primary and secondary water tanks are convenient to disassemble and assemble.

In some embodiments, the first regulator valve assembly is a duckbill or sector valve or a float valve.

In some embodiments, the first regulator valve assembly is a float valve including a float, a regulator stem coupled to the float, and a float press movably coupled to the regulator stem, the float press being adapted to movably abut the first outlet to prevent waste water from the waste tank from flowing out of the first outlet.

The utility model also provides a wet-type ground cleaning equipment, wet-type ground cleaning equipment includes rather than can dismantle the continuous primary and secondary water tank, and: a housing including a handle assembly and a cleaning base mounted to the handle assembly, the cleaning base being movable on a floor surface to be cleaned and having a bottom provided with a nozzle for spraying liquid onto the floor surface to be cleaned and a suction nozzle for sucking dirt from the floor surface to be cleaned; the motor assembly is in transmission connection with a suction source, and the suction source is formed with a fluid conveying channel communicated with the nozzle and a fluid recovery channel communicated with the suction nozzle in the shell; the second inlet, the sub tank, and the second outlet form a portion of the fluid delivery passage, and the first inlet, the mother tank, and the first outlet form a portion of the fluid recovery passage.

The utility model adopts the inside and outside arranged primary and secondary water tanks, the volumes of the primary and secondary water tanks are dynamically adjustable under the condition of unchanged total volume, the circuit unit is not needed to be involved, and the problem of overlarge occupied space of the structural design of the water tank for the simple and convenient optimized wet-type ground cleaning equipment is solved; the smart design of flexible materials and a reset element is adopted, so that the problems that the secondary water tank cannot be retracted well and swings too much due to the anisotropy of buoyancy when the primary water tank is full are solved, and the volume adjustment of the secondary water tank and the primary water tank is simple and convenient; the design of the special fluid channels of the sub water tank and the main water tank is adopted, so that the inlet and outlet pipelines of clean water and sewage are separated orderly, and the continuous work of the ground cleaning equipment is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a wet floor cleaning unit according to an embodiment of the present invention.

Fig. 2 is a perspective view of the primary-secondary water tank according to an embodiment of the present invention.

Fig. 3 is a perspective schematic view of a primary-secondary water tank according to an embodiment of the present invention.

Fig. 4 is an exploded view of the primary and secondary water tanks according to an embodiment of the present invention.

Fig. 5 is an exploded view of a sub tank according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "mounted," "disposed," "provided," "connected," and "sleeved" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

When an installation is described as being "connected" or "connected," it can be directly connected or indirectly connected through intervening components. The terms "vertical," "horizontal," "parallel," and the like as used herein refer to a substantially vertical or substantially horizontal condition within reasonable tolerances, and are not necessarily exact; the terms "horizontal" and "vertical" are used merely to describe the relative positions of the components.

The utility model discloses if there is not the opposite suggestion, a part "is equipped with", "is located", "is established", "is connected" another subassembly to do not exclude this two subassemblies structure as an organic whole.

The clean water of the utility model is suitable for cleaning liquid which can be used for cleaning the ground and comprises tap water and drinking water or cleaning liquid, cleaning agent and other chemical components suitable for cleaning the ground; the sewage of the present invention is suitable for the liquid which is recovered after being used for cleaning the ground, especially possibly polluted, or sucked or adsorbed from the self-cleaning ground, especially possibly showing some polluted liquid/liquid residue, etc. Here, the clean water and the sewage are only suitable for distinguishing relatively clean liquid used before cleaning and relatively polluted liquid or suspended dirt adsorbed after cleaning, and are not limited to whether the clean water or the polluted sewage is pure or not.

Referring to fig. 1, an embodiment of a wet floor cleaning device is shown, comprising, on the one hand, a housing 60 comprising a handle assembly 61 and a cleaning base 62 mounted thereto, the cleaning base 62 being movable over a floor surface to be cleaned and being provided at the bottom with a nozzle for spraying liquid onto the floor surface to be cleaned and a suction nozzle for sucking dirt from the floor surface to be cleaned.

According to another aspect of the above embodiment, there is provided a motor assembly having a suction source drivingly connected thereto, the suction source being in fluid communication with a suction nozzle within a housing for generating a working air flow, a fluid delivery passage being formed in communication with the nozzle, the fluid delivery passage being adapted to deliver fresh water to the cleaning base, and a fluid recovery passage being in communication with the suction nozzle, the fluid recovery passage being adapted to recover soiled water or dirt picked up from the floor to be cleaned. One or more additional filters may also be provided in the fluid recovery channel.

According to another aspect of the above embodiment, the cleaning head is disposed in the cleaning base, and the cleaning head can be a cleaning head which can be wetted and is composed of various cleaning brush heads such as a mixing brush roller, a brush, a rolling brush and the like, and can be used for wet cleaning the floor after receiving clean water from the fluid conveying channel.

According to another aspect of the above embodiment, a steering and steering system is included that is in operative communication with the motor and the suction source and feeds steering commands back to the various sections of the circuit connection to control operation of the sections.

According to another aspect of the above embodiment, the cleaning device comprises a water tank, wherein the water tank comprises a clean water tank capable of containing clean water, and the clean water tank can be conveyed to the cleaning base through a fluid conveying channel to wet the cleaning head; the sewage tank can be used for recovering the adsorbed sewage through the fluid recovery channel and storing the sewage in the sewage tank.

Fig. 2 is a perspective view of a primary and secondary water tank for a wet floor cleaning device according to an embodiment of the present invention. The primary and secondary water tanks are integrally cylindrical cavities with flat cylindrical sections, and the rear sides of the primary and secondary water tanks are respectively provided with two semicircular inner grooves which are arranged in parallel along the height direction and are suitable for being installed in a matched fluid pipeline. Preferably, the fluid pipeline adopts a corrugated pipe and a hose, and is installed in a manner of being attached to the inner groove. The primary and secondary water tanks comprise a primary water tank 10 and a secondary water tank 20 which are sleeved inside and outside, wherein the primary water tank 20 is arranged outside the secondary water tank 10. The mother water tank 20 is made of PP plastic and has certain hardness, and the mother water tank 20 is used for containing sewage. The sub tank 10 has a variable volume and a certain deformation/extension force, and the sub tank 10 is used for containing clean water.

The handle 21 is arranged on the primary water tank 20, so that the primary and secondary water tanks can be conveniently taken out from the wet floor cleaning equipment for receiving water or placing. The primary and secondary tank housings, i.e., the upper portion of the primary tank 20, have a substantially horizontal surface with a first inlet 22 formed therein. A first outlet 23 is formed in one side of the upper portion of the semicircular inner groove at the rear side of the mother water tank 20, and a third outlet 24 is formed in the side of the semicircular inner groove. The third outlet 24 is a pour spout adapted to pour the waste water after the mother water tank is removed from the floor scrubbing apparatus. The first inlet 22, the mother water tank 20, and the first outlet 23 constitute a first fluid passage. The waste water recovered through the fluid recovery channel may be entrained by the suction air stream entering the mother tank 20 for storage through the first inlet 22, with the suction air stream continuing to exit the mother tank through the first outlet 23. The first fluid passage forms part of an air passage through which the suction source communicates with the suction nozzle and entrains the dirty water dirt by the airflow to return to the mother water tank. To prevent the dirty water in the mother water tank 20 from leaking or being entrained out with the air flow from the first outlet 22 into the air path conduit connected to the suction source or motor, a first regulator valve assembly 50 is provided in the first fluid path.

Preferably, the first regulating valve assembly 50 is a float valve assembly including a float 51, a regulating rod 52 connected to the float, and a float pressing member 53 movably connected to the regulating rod 52, the float pressing member 53 movably abutting against the first outlet 23 to prevent the wastewater of the wastewater tank from flowing out of the first outlet 23. When the mother water tank 20 has no water or the water amount is insufficient, the floater 51 sinks to the bottom of the mother water tank 20 due to gravity, the adjusting rod 52 is pulled to perform lever motion, and the floater pressing piece 53 is kept away from the first outlet 23 to open the first outlet 23; as the water amount in the mother water tank 20 rises, the float 51 is raised continuously under the action of buoyancy, the adjusting rod 52 is driven to move in a lever manner, and the float pressing piece 53 is pushed to movably cover the first outlet 23 so as to close the first outlet 23.

In other embodiments, the first regulator valve assembly 50 may also be a duckbill valve or a sector valve.

In order to better prevent the sewage in the mother tank 20 from flowing out along with the first outlet 22, the volume ratio of the sub tank 10 to the mother tank 20, the position of the first outlet 23 on the mother tank 20, and the like need to be configured. Because the volume of the sub water tank 10 is variable, and the sub water tank 10 is sleeved inside the mother water tank 20, the maximum volume of the sub water tank 10 is necessarily smaller than that of the mother water tank 20, and considering that in practical use, when a suction nozzle of a cleaning base cleans the ground, some dirty liquid adsorbed from the ground is also entrained, and enters the mother water tank along with the gas recovery channel, preferably, the maximum volume of the sub water tank 10 is set to be 500 ml-600 ml, and the maximum volume of the mother water tank 20 is set to be 1300 ml-1500 ml. Preferably, the maximum water storage capacity of the mother water tank 20 is not more than two-thirds of the maximum water level, and more preferably, not more than half or even one-third of the maximum water level, so as to prevent the sewage in the mother water tank 20 from leaking or being entrained out from the first outlet 23 and entering the motor assembly or the suction source to cause circuit damage due to the tumbling of the cleaning device or the excessive suction force of the suction source.

Further, one or more additional filters may be provided between the mother water tank 20 and the first outlet 22 to filter the wet/entrained dirty airflow passing from the mother water tank 20.

The sub tank 10 is in a soft bag/ellipsoid shape and is fixedly installed inside the main tank 20. In order to facilitate installation and fixation of the sub-tank 10 inside the main tank 20 during processing, the main tank 20 is preferably connected by two caps (20a, 20b) connected up and down by ultrasonic welding, and a sealing ring is further provided between the two caps (20a, 20b) in order to ensure the tightness of the tank. In other embodiments, the upper and lower covers of the wooden water tank 20 may be fixed by conventional flange connection, valve connection, or the like, or may be plugged into the mother water tank 20 by using the self-deformation compression characteristic of the sub-tank 10 when the sub-tank is empty.

The sub-tank 10 is made of a silica gel material, has certain contraction expansion and deformation capabilities, can expand and become large when liquid is filled in the sub-tank, and contracts and become small when the liquid is discharged. In other embodiments, the sub-tank 10 may also be made of thin plastic, or other flexible bags such as a rubber hot-water bag and a soft water storage belt, and only needs to ensure that the sub-tank 10 has certain deformation force and firmness, and can expand after being filled and contract after being emptied.

The upper part and the lower part of the sub-water tank 10 are respectively provided with a through hole, the upper part is provided with a second inlet 11, the lower part is provided with a second outlet 12, and the second inlet 11 and the second outlet 12 are respectively connected with the main body of the sub-water tank 10 in a sealing way through sealing gaskets. The second inlet 11 is connected with a hose 13, and the hose 13 extends from the inside of the mother water tank 20 to the outside of the mother water tank 20 and is connected with the outer wall of the mother water tank 20. When the device is used, clean water for cleaning can be directly connected to an outlet of the hose 13 communicated with the outer wall of the mother water tank 20, and a knob cover can be additionally arranged at the outlet for convenience. The second inlet 11, the sub-tank 10 and the second outlet 12 form a second fluid passage, which is a waterway passage.

Referring to fig. 3 and 4, since the sub-tanks 10 are disposed in the main tank 20 and the main and sub-tanks 20 can contain clean water/sewage, when the main tank 20 is filled with partial sewage and the sub-tanks 10 are filled with partial clean water, the sub-tanks 10 are easy to form a floating state in the main tank 20 and unstable in swinging around due to the buoyancy of the sub-tanks 10 and due to their own weight or material, and after the water flow of the sub-tanks 10 flows out, the contraction effect of the sub-tanks 10 is easily affected by the buoyancy and the contraction is not good. In order to overcome the buoyancy effect and to enable the clean water in the sub tank 10 to be better contracted after being emptied, it is preferable to install a reset assembly 30 on the sub tank 10, which can assist the sub tank 10 to recover its shape after the water flow is discharged. Preferably, the reset assembly 30 adopts a clamp spring 31 structure, and the clamp spring 31 is fixedly sleeved on the outer wall or the inner wall of the sub-tank 10 at the position where the outer diameter of the sub-tank 10 is the largest after the sub-tank 10 is filled with clear water. By utilizing the deformation and contraction of the clamp spring 31, the auxiliary sub-water tank 10 contracts after being emptied of clear water. In other embodiments, the form of the reset assembly 30 is various, and at least two springs connected end to end may be provided, and are also fixedly sleeved at the maximum outer diameter of the sub-tank 10 after being filled with clear water in a ring shape, or at other positions to assist in shrinking.

In order to control the water outflow amount and the water outflow speed in the sub-tank 10, it is preferable that a second regulator valve assembly 40 is connected to the second outlet 12. When the child and mother tanks are removed from the cleaning apparatus, the second regulator valve assembly 40 can close the second outlet 12, preventing the water in the child tank 10 from flowing out.

Preferably, the second regulator valve assembly 40 includes a valve seat 41, a valve stem 42 movably coupled to the valve seat 41, a spring 43 movably coupled to the valve stem 42, and a gasket 44 movably covering the second outlet 12. The sealing pad 44 is an inverted butterfly sealing pad, and a hollow bracket (not shown) is arranged in the valve seat 41. The hollow support comprises 4 support ribs extending radially from the center to the outside, and a water passage is formed in the area between the support ribs and the inner wall of the valve seat 41. The valve rod 42 is in a rod shape and is sleeved with a spring 43, the valve rod 42 can movably abut against the center of the sealing gasket 44, and the valve rod 42 abuts against and pushes the sealing gasket 44 to movably cover the second outlet 12 so as to close or open the second outlet 12. The end of the valve rod 42 is higher than the lowest surface of the valve seat 41, so that when the primary and secondary water tanks are taken out from the cleaning device and placed on a plane, the valve rod 42 is retracted inside the valve seat 41 and cannot be propped against the ground to open the second outlet 12 by mistake, and water leakage is caused. When the primary-secondary water tank is installed on the cleaning equipment, a protrusion abutting against the valve rod 42 is arranged at a corresponding position of the cleaning equipment, so that the sealing gasket 44 is controlled to move upwards to open the second outlet 12 after the protrusion abuts against the valve rod 42, and water flows out of the second outlet 12.

In other embodiments, the second regulating valve assembly 40 may also be a solenoid control valve assembly (not shown), which includes a trigger reed switch connected to the electrical contact of the cleaning device, an energized magnetic strip electrically connected to the trigger reed switch, a valve core, and a gasket connected to the valve core and movably covering the second outlet 12. After triggering magnetic reed switch and being connected with the last predetermined electric contact electricity of cleaning device, solenoid valve subassembly received the work of telecommunication, and the circular telegram magnetic stripe in the solenoid valve subassembly produces electric current for circular telegram magnetic stripe produces magnetic force, thereby the circular telegram magnetic stripe is mutually exclusive with the case and is promoted the case upward movement, drives sealed pad and no longer plugs up second export 12, realizes rivers and flows out from second export 12.

The utility model provides a wet-type ground cleaning equipment can take out the primary and secondary water tank earlier before using to the clear water is packed into toward the second import 11 of secondary water tank 10, then installs the primary and secondary water tank in wet-type ground cleaning equipment's the position of predetermineeing, because bellied top of supporting, the clear water in the secondary water tank 10 can flow out from second export 12 under second regulating valve subassembly 40's control. The second inlet 11, the sub-tank 10 and the second outlet 12 form a second fluid channel, which forms a part of the fluid conveying channel, and the clean water flowing out from the second outlet 12 is conveyed along the fluid conveying channel to the cleaning base to wet the cleaning head mounted on the cleaning base to clean the floor to be cleaned. As the cleaning proceeds, the suction nozzle recovers and sucks in the dirt and solid dirt remaining on the floor surface, and possibly part of the clean water overflowing from the cleaning head, and is sucked along the fluid recovery channel together into the first inlet 22 of the mother water tank 20, and the first fluid channel formed by the first inlet 22, the mother water tank 20, and the first outlet 23, which forms part of the fluid recovery channel. The air flow carries the sewage/dirt back into the mother water tank 20. Due to the obstruction of the first regulator valve assembly 50, the sewage/dirt remains in the mother water tank 20 and the gas continues to flow. When the cleaning operation is completed, the primary and secondary tanks are removed from the wet floor cleaning apparatus and the waste water in the primary tank is discharged through the third outlet 24.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A primary and secondary water tank for a wet floor cleaning device, comprising:

the sewage treatment device comprises a mother water tank, a sewage treatment tank and a sewage treatment tank, wherein the mother water tank is suitable for containing sewage, a first inlet, a first outlet and a third outlet are arranged at the upper part of the mother water tank, and the third outlet is a pouring opening;

the secondary water tank is arranged in the primary water tank and is suitable for containing clean water, a second inlet is formed in the top of the secondary water tank, and a second outlet is formed in the bottom of the secondary water tank;

the inner parts of the sub water tank and the mother water tank are not directly communicated, and the volume of the sub water tank is variable.

2. The master-slave water tank for a wet floor cleaning device according to claim 1, wherein: when the inside clear water that fills of sub tank the expansion grow of sub tank volume, when sub tank discharge clear water the shrink diminishes of sub tank volume.

3. The primary-secondary water tank for a wet floor cleaning device according to claim 2, wherein: and the sub water tank is provided with a reset assembly which can assist the sub water tank to recover the deformation after water flow is discharged.

4. The primary-secondary water tank for a wet floor cleaning device according to claim 3, wherein: the reset component is a clamp spring, and/or the reset component is at least two springs which are connected end to end.

5. The primary-secondary water tank for a wet floor cleaning device according to claim 4, wherein: the reset component is fixedly sleeved at the maximum outer diameter of the sub water tank.

6. A primary and secondary water tank for a wet floor cleaning device according to any one of claims 1 to 5, characterized in that: the first adjusting valve assembly is arranged in the mother water tank and is configured to prevent sewage in the mother water tank from leaking/entraining and flowing out from the first outlet.

7. The primary-secondary water tank for a wet floor cleaning device according to claim 6, wherein: and a second regulator valve assembly disposed at the second outlet.

8. The primary-secondary water tank for a wet floor cleaning device according to claim 7, wherein: the second regulating valve component comprises a valve seat, a valve rod movably connected with the valve seat, a spring movably connected with the valve rod and a sealing gasket movably covered with the second outlet; a hollow bracket is arranged in the valve seat and forms a water passage; the valve rod stops and pushes the sealing gasket to movably cover relative to the second outlet so as to seal or open the second outlet, so that the water in the sub-water tank flows out through the water passage;

or the second regulating valve assembly comprises a trigger magnetic reed switch electrically connected with the wet-type ground cleaning equipment in a contact mode, an electrified magnetic stripe electrically connected with the trigger magnetic reed switch in a contact mode, a valve core and a sealing gasket which is connected with the valve core and movably covered on the second outlet.

9. The primary-secondary water tank for a wet floor cleaning device according to claim 8, wherein: the primary and secondary water tank for a wet floor cleaning device further comprises at least one of the following features:

the maximum capacity of the sub water tank is 500 ml-600 ml;

when the water amount in the sub water tank is 0 or close to 0ml, the water level amount in the mother water tank does not exceed half of the height of the mother water tank;

the position of the first outlet is higher than the highest water level position in the mother water tank;

an air filter is arranged at the first outlet;

a handle is arranged on the mother water tank;

the first regulating valve assembly is a duckbill valve or a fan valve;

the first regulating valve component is a float valve and comprises a float, a regulating rod connected with the float and a float pressing piece movably connected with the regulating rod, and the float pressing piece is suitable for movably abutting against the first outlet.

10. A wet floor cleaning device, characterized in that: the wet floor cleaning appliance comprising a master-slave water tank according to any one of claims 1 to 5, 7 to 9 removably connected thereto, and:

a housing including a handle assembly and a cleaning base mounted to the handle assembly, the cleaning base being movable on a floor to be cleaned and having a bottom provided with a nozzle for spraying water onto the floor to be cleaned and a suction nozzle for suctioning dirt from the floor to be cleaned;

the motor assembly is in transmission connection with a suction source, and the suction source is formed with a fluid conveying channel communicated with the nozzle and a fluid recovery channel communicated with the suction nozzle in the shell;

the second inlet, the sub tank, and the second outlet form a portion of the fluid delivery passage, and the first inlet, the mother tank, and the first outlet form a portion of the fluid recovery passage.

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