CN217266429U

CN217266429U - Washing machine

Info

Publication number: CN217266429U
Application number: CN202123041370.4U
Authority: CN
Inventors: 许升; 吕艳芬; 刘凯
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-08-23
Anticipated expiration: 2031-12-06

Abstract

The utility model belongs to the technical field of washing machine, a washing machine is disclosed, include: a water containing cylinder; the filtering device is communicated with the water containing barrel, receives the water in the water containing barrel for filtering, and is provided with a sewage discharge outlet for discharging sewage outwards; the suction device performs suction action and drives the sewage in the filtering device to be discharged through the sewage discharge port under the action of pressure difference; the recovery device is used for collecting the sewage discharged by the filtering device; and the isolation mechanism is arranged between the sewage draining port and the suction device and disconnects the communication between the suction device and the sewage draining port along with the discharge of the sewage. The utility model discloses in, through set up isolation mechanism between suction device and filter equipment's drain, can be when exhaust sewage reaches an amount automatic disconnection suction device and the drain between the intercommunication, prevent that sewage from further discharging and by the suction device of being inhaled, played the guard action to suction device.

Description

Washing machine

Technical Field

The utility model belongs to the washing machine field, specifically speaking relates to a washing machine.

Background

In the process of washing the clothes by the washing machine, the clothes generate threads and scraps to fall off and be mixed into the washing water due to friction between the clothes and friction between the clothes and the washing machine. If the lint in the washing water cannot be removed, the lint is likely to adhere to the surface of the laundry after the washing is completed, which may affect the washing effect of the laundry. For this reason, the conventional washing machine is provided with a filter for filtering lint, and the lint is removed from the washing water by circulating the washing water through the filter during the washing process.

The filter of the existing washing machine is generally arranged in the inner tub or the drainage pump for filtering thread scraps and impurities in the washing water. However, after the washing machine is used for a long time, the filter is filled with filter impurities such as thread scraps and the like, the filtering effect of the filter is affected, the blocking of a drain valve/a drain pump is caused, bacteria are easy to breed, the filter needs to be cleaned in time, otherwise, the pollution of washing water is caused, secondary pollution is caused to clothes, and the health of a user is affected. However, most washing machines require the user to remove the filter for manual cleaning, and are inconvenient to operate.

In view of the above problems, a filtering apparatus having a self-cleaning function is proposed to automatically discharge attached filtering impurities. Most of washing machines using the filtering device directly collect sewage carrying filtered impurities into drainage water flow of the washing machine to be discharged after the self-cleaning of the filtering device is completed, and the following problems are caused.

On the one hand, because the washing machine has compact inner space, the sewage discharge path of the filter device for discharging sewage outwards is long, and a certain height difference possibly exists, so that the sewage in the filter device is difficult to be discharged fully under the condition of not using driving force, and the self-cleaning of the filter device is not thorough enough. After the washing machine is used for a long time, the sanitary problem caused by the accumulation of filtering impurities in the filtering device can not be avoided.

Generally, the washing machine in the prior art provides power for water flow conveying through the water pump, but if the water pump is adopted to convey sewage discharged by the filtering device, thread scraps and other impurities in the sewage can be remained in the water pump after a long time, so that the pump body of the water pump is blocked, and further the washing machine is in failure. How to drive the discharge of the sewage through a driving device which is not in direct contact with the sewage becomes an urgent problem to be solved.

On the other hand, in recent years, the concept of micro plastic has been proposed in the field of environmental protection and is gradually receiving increasing attention. The micro plastic generally refers to plastic fragments and particles with the diameter less than 5 mm, which are mixed in the natural water environment and easily adsorb organic pollutants in water due to the high specific surface area to form organic pollution spheres. The floating micro-plastics in water are easily eaten by the lower food chain organisms such as mussels and zooplankton, and because the micro-plastics cannot be digested, the micro-plastics can continue to accumulate in the upper organisms after the lower food chain organisms are preyed by the upper organisms. The food source of human beings, which is the top living creatures of the food chain, includes the living creatures that accumulate the micro-plastics in the body, which in turn causes the accumulation of the micro-plastics in the human body, and may affect the health of the human body.

Research has found that an important source of micro-plastics is waste water from domestic washing machines. The reason is that the clothes fibers can be washed away when the washing machine washes clothes, and along with the popularization of chemical fiber fabrics, the fallen clothes fibers are discharged along with the drainage water flow of the washing machine to become micro plastic mixed in the natural water environment. Meanwhile, the micro plastic can be from industrial products made of plastic materials, and structures such as an outer barrel, a drain pipe and the like in the washing machine are generally made of plastic, so that falling plastic fragments caused by aging and the like are inevitable after long-term use. Therefore, how to reduce the content of micro-plastics in the drainage water of the washing machine becomes a problem to be solved urgently in the field of environmental protection. In the washing machine with the filtering device self-cleaning function in the prior art, the problem of overhigh content of the micro-plastics in the drainage water of the washing machine exists because the filtering impurities containing the micro-plastics are directly gathered into the drainage water flow of the washing machine to be discharged.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, a washing machine with filter equipment is provided, carry out the suction action through setting up suction device, thereby sewage discharge among the drive filter equipment, and enter recovery unit and be collected, the filtration impurity in the sewage has been avoided directly discharging, set up isolation mechanism between suction device and filter equipment's the drain, can be when exhaust sewage reaches an amount automatic disconnection suction device and the drain between the intercommunication, prevent that sewage from being inhaled in the suction device.

In order to solve the technical problem, the utility model adopts the following basic concept:

a washing machine, comprising:

a water containing cylinder;

the filtering device is communicated with the water containing barrel, receives water in the water containing barrel for filtering, and is provided with a sewage discharge outlet for discharging sewage outwards;

further comprising:

the suction device performs suction action and drives the sewage in the filtering device to be discharged through the sewage discharge port under the action of pressure difference;

the recovery device is used for collecting the sewage discharged by the filtering device;

and the isolation mechanism is arranged between the sewage draining port and the suction device and disconnects the communication between the suction device and the sewage draining port along with the discharge of the sewage.

Furthermore, the isolation mechanism comprises a floating piece, and a communication path between the suction device and the sewage outlet is provided with a vent hole; in the process of discharging sewage, the floating piece rises to the vent hole along with the water surface to plug the vent hole;

preferably, the floating piece is a floating ball, and the diameter of the floating ball is larger than that of the vent hole.

Further, the filtering device is communicated with a temporary sewage storage device with an internal cavity, and the temporary sewage storage device is communicated with the recovery device; the suction device is communicated with the internal cavity of the temporary sewage storage device and is used for sucking air in the temporary sewage storage device;

the floating piece is arranged in the temporary sewage storage device, and the vent hole is arranged on the temporary sewage storage device; and/or the floating piece is arranged between the sewage temporary storage device and the suction device.

Furthermore, a buffer part is arranged between the suction device and the temporary sewage storage device, a buffer chamber is arranged in the buffer part, and the buffer chamber is respectively communicated with an internal cavity of the temporary sewage storage device and the suction device;

the floating piece is arranged in the temporary sewage storage device, and the vent hole is arranged on the temporary sewage storage device; and/or the floating piece is arranged inside the buffer part, and the vent hole is arranged on the buffer part.

Further, the isolation mechanism further comprises a guide part extending from the bottom of the temporary sewage storage device to the vent hole, the guide part is provided with a hollow channel, and the floating part is arranged in the hollow channel;

preferably, the guide portion extends vertically.

Further, a through hole for communicating the hollow channel with the outer space of the guide part is arranged on the side wall of the guide part.

Further, the floating piece is a floating ball, the guiding part is of a circular tube-shaped structure, and the inner diameter of the guiding part is larger than the outer diameter of the floating ball.

Further, the sewage temporary storage device is connected with an air vent pipeline which is communicated with the suction device; the floating piece is a floating ball arranged in the sewage temporary storage device, and the diameter of the floating ball is larger than that of the vent pipeline.

Furthermore, the floating piece is a floating ball, and a ventilation pipeline is arranged between the temporary sewage storage device and the suction device; the vent pipeline is provided with a reducing section with the diameter gradually reduced by extending from bottom to top, and the floating ball is arranged inside the reducing section; the diameter of the top end of the reducing section is smaller than that of the floating ball, and the floating ball rises to the top end of the reducing section along with the water surface to realize plugging.

Furthermore, the temporary sewage storage device is provided with air holes which are communicated with the inside in a one-way mode from the outside of the temporary sewage storage device.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

The utility model discloses in, the recovery unit of setting in washing machine can collect filter equipment exhaust sewage, prevents that filtering impurity such as the line bits that carry from directly discharging washing machine in the sewage, has avoided the little plastics in the filtering impurity to get into ecological cycle along with the drainage rivers, causes the influence to ecological environment and health. The suction device performs suction action, and pressure difference can be generated inside and outside the sewage discharge port, so that driving force is provided for discharging sewage in the filtering device, and the problem of pump body blockage possibly existing in water pump conveying is avoided. The isolation mechanism is used for disconnecting the communication between the sewage draining outlet and the suction device when the sewage is drained to a certain amount, so that the sewage is prevented from being sucked into the suction device, and the suction device is protected.

The utility model discloses in, set up the floating piece in sewage temporary storage device and/or buffer, the floating piece floats on the surface of water, and the surface of water that risees along with sewage entering rises, and when the surface of water rises to a take the altitude, but the floating piece shutoff air vent to prevent that sewage from overflowing from the air vent, avoided the suction device to inhale the condition of sewage effectively. The guide part guides the movement of the floating part, and ensures that the floating part can accurately move to the vent hole when the floating part rises along with the water surface.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, the illustrative embodiments and the description of the invention serve to explain the invention without unduly limiting the invention. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of a washing machine according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the washing machine according to the embodiment of the present invention;

FIG. 3 is a schematic view of the communication structure between the filtration device and the recovery device (no water is present in the temporary sewage storage device) in the embodiment of the present invention;

fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention;

FIG. 5 is a schematic view of a communication structure between the filtering apparatus and the recycling apparatus in the embodiment of the present invention (the temporary wastewater storage apparatus is full of water);

fig. 6 is an enlarged schematic view of fig. 5B according to the present invention;

fig. 7 is a schematic view of a communication structure between the filtering device and the recycling device in the third embodiment of the present invention;

FIG. 8 is a partial enlarged view (normal state) of the sewage inlet of the fifth embodiment of the present invention;

FIG. 9 is a partial enlarged view of the sewage inlet of the fifth embodiment of the present invention (i.e., the plugging state when the air pump is turned on);

FIG. 10 is a partial enlarged view of the sewage inlet of the fifth embodiment of the present invention (in an open state after the air pump is turned off);

fig. 11 is a schematic structural view of a plugging member in the fifth embodiment of the present invention.

In the figure: 10. a box body; 100. a water containing cylinder; 110. a window pad; 210. a drain line; 220. a circulation line; 230. a water return pipeline; 240. a sewage draining pipeline; 241. a blowdown control valve; 250. an outer discharge pipeline; 260. a drain pipe of the water containing barrel; 270. a switching device; 300. a water inlet box; 400. a circulation pump; 500. a recovery device; 510. a housing; 520. a filter assembly; 531. a first chamber; 532. a second chamber; 540. a blocking member; 541. a substrate; 542. an opening part; 550. a sewage inlet; 551. a tubular portion; 552. a connecting portion; 600. a filtration device; 610. a filtering cavity; 6101. a water inlet; 6102. a filtered water outlet; 6103. a sewage draining outlet; 620. a filtering mechanism; 621. a water outlet joint; 660. a drive mechanism; 680. cleaning the particles; 690. a baffle plate; 810. an air pump; 811. a suction line; 820. a sewage temporary storage device; 821. air holes are formed; 822. a floating ball; 823. a guide section; 830. a buffer section; 831. a vent line; 832. and (4) a vent hole.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 6, the washing machine according to the present embodiment includes:

a water containing cylinder 100;

a filtering device 600 communicated with the water containing cylinder 100, receiving the water in the water containing cylinder 100 for filtering, and having a sewage outlet 6103 for discharging the sewage outwardly;

and a recovery device 500 for collecting the sewage discharged from the filtering device 600.

In this embodiment, the washing machine is provided with a circulation filtering pipeline, two ends of which are respectively communicated with the water containing drum 100, and the filtering device 600 is arranged on the circulation filtering pipeline. The circulating filter pipeline is also provided with a circulating pump 400, the circulating pump 400 drives the water in the water containing barrel 100 to continuously circulate through the circulating filter pipeline, and thread scraps and other filter impurities in the water can be removed when the water passes through the filter device 600, so that the thread scraps content in the water can be reduced, and the washing effect of clothes is improved.

The last drain 6103 that sets up of filter 600, the filtration impurity that remains in filter 600 after filtering can be discharged by drain 6103 along with rivers, need not the user and takes out manual clearance of filter 600, and it is more convenient to use. The recycling device 500 is connected to the sewage outlet 6103 of the filtering device 600, and the sewage with filtered impurities can enter the recycling device 500 to be collected after being discharged from the sewage outlet 6103, and will not be collected into the water flow to be discharged out of the washing machine. By the mode, the situation that the micro plastic in the filtered impurities is discharged along with water flow and enters ecological circulation, and further harm is brought to ecological environment and human health is avoided.

Specifically, the filter device 600 of the present embodiment includes:

a filter cavity 610, on which a water inlet 6101, a filtered water outlet 6102 and a sewage outlet 6103 are arranged, the water inlet 6101 and the filtered water outlet 6102 are connected to the circulating filter pipeline;

a filter mechanism 620 rotatably disposed in the filter chamber 610;

and the driving mechanism 660 drives the filtering mechanism 620 to rotate in the filtering cavity 610.

Filter mechanism 620 includes a filter support, and a filter covering the surface of filter support, separating the interior of filter cavity 610 into an outer cavity and an inner cavity. Water in the water containing barrel 100 enters the outer cavity of the filter cavity 610 through the water inlet 6101, the filtering impurities in the water are blocked by the filter screen and attached to the outer surface of the filter mechanism 620, the clean water without filtering impurities enters the inner cavity and flows out through the water outlet connector 621 communicated with the inner cavity, and finally flows out of the filter cavity 610 from the filtered water outlet 6102. Through the pore size design of the filter screen, the filter mechanism 620 can not only filter large-size thread scraps in water, but also filter micro-plastics in the water, thereby obviously reducing the content of the micro-plastics in the drainage water of the washing machine.

When the filtering apparatus 600 needs to be cleaned, the driving mechanism 660, such as a motor, drives the filtering mechanism 620 to rotate in the filtering cavity 610, so as to stir the water remaining in the filtering cavity 610, so that the filtering impurities attached to the surface of the filtering mechanism 620 are peeled off from the filtering mechanism 620 under the action of centrifugal force and the stirring water flow, and are melted into the water in the filtering cavity 610. And can be finally collected by the recycling device 500 by being discharged with the water flow from the sewage outlet 6103.

In this embodiment, the self-cleaning operation of turning on the driving mechanism 660 to rotate the filtering mechanism 620 and/or the blowdown operation of discharging the sewage out of the filtering apparatus 600 through the blowdown port 6103 are performed at least once during one complete washing process of the washing machine. The filtering mechanism 620 may be kept stationary or rotated by the driving mechanism 660 while the soil discharging operation is performed.

Further, cleaning particles 680 are disposed in the filtering chamber 610 of the filtering apparatus 600 for cleaning the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620 by frictional collision with the water flow. In the circulating filtration process, the cleaning particles 680 continuously rub the inner wall of the filtering cavity 610 and the outer wall of the filtering mechanism 620 along with flowing water flow, so that the attached filtering impurities fall off, the deposition of the filtering impurities is prevented, and the filtering mechanism 620 is prevented from being covered by the filtering impurities to influence the filtering efficiency. When the filtering mechanism 620 rotates to perform self-cleaning, the cleaning particles 680 move in the filtering cavity 610 along with the action of the surging water flow and rub against the inner wall of the filtering cavity 610 and the outer wall of the filtering mechanism 620, so that the stripping efficiency of the filtering impurities is improved, and the self-cleaning effect of the filtering device 600 is better.

A baffle 690 is further disposed in the filtering chamber 610 to divide the interior of the filtering chamber 610 into a first space on the left side and a second space on the right side, and the cleaning particles 680 and the main body of the filtering mechanism 620 are located in the first space. The water inlet 6101 is communicated with the first space, and the filtered water outlet 6102 and the drain outlet 6103 are communicated with the second space. Set up the water hole of crossing of first space of intercommunication and second space on the baffle 690, sewage accessible baffle 690 in the filter chamber 610 is discharged from drain 6103, and washing granule 680 can't pass through the water hole to blockking at the left side by baffle 690, avoided washing granule 680 along with sewage discharge through drain 6103, or pile up the condition that causes the jam in drain 6103 department.

The circulation filtering pipeline of the washing machine in the embodiment specifically comprises:

a water containing barrel drain pipe 260 connected with the water containing barrel 100 and the water inlet end of the circulating pump 400;

a drain line 210, one end of which is connected to the water outlet end of the circulation pump 400, and the other end of which is connected to the switching device 270;

a circulation line 220 having one end connected to the switching device 270 and the other end connected to a water inlet 6101 of the filter device 600;

one end of the return pipe 230 is connected to the filtered water outlet 6102 of the filter device 600, and the other end thereof is communicated with the water container 100, so as to deliver the filtered water to the water container 100.

The switching device 270 is further connected to an outer discharge pipeline 250 for discharging water to the outside of the washing machine, and the switching device 270 may control the circulation pipeline 220 and the outer discharge pipeline 250 to be alternatively communicated with the drain pipeline 210. Thus, a driving force can be provided for the circulation filtering and the drainage of the washing machine by one circulation pump 400, and the corresponding function can be realized by only controlling the conduction direction of the switching device 270.

The water outlet end of the water return pipe 230 is connected to the window pad 110 at the opening of the water containing barrel 100, and the water filtered by the filter device 600 enters the water containing barrel 100 from the window pad 110.

In this embodiment, the washing machine is provided with a recycling device 500 for collecting the sewage discharged from the filtering device 600. However, due to the limited inner space of the washing machine, the filtering unit 600 may be far away from the recovery unit 500, resulting in a long path for the sewage to be discharged into the recovery unit 500. As shown in fig. 1, the recovery device 500 and the filtering device 600 are respectively disposed at left and right regions of the top of the cabinet 10 of the washing machine in the present embodiment, and it is difficult for the contaminated water in the filtering device 600 to be completely discharged into the recovery device 500 without an external force. However, if the height of the recycling apparatus 500 is higher than the discharge outlet 6103 of the filtering apparatus 600, there may be a case where the sewage cannot be discharged.

The conventional water pump is generally adopted in the washing machine to provide power for driving water flow, but sewage carrying filtered impurities is discharged into the recovery device 500 by the filtering device 600, and the sewage can be blocked when passing through the pump body of the water pump by adopting the conventional pumping mode, so that the washing machine is in failure.

In order to solve the problem that the filtering device 600 discharges the sewage into the recycling device 500, the washing machine of the embodiment is provided with the suction device, so that the suction device can perform suction to suck the air in the space outside the sewage outlet 6103, and the sewage in the filtering device 600 is driven to be discharged into the recycling device 500 through the sewage outlet 6103 under the action of pressure difference.

In this embodiment, an air pump 810 is employed as the suction means. Specifically, when the filtering device 600 needs to discharge sewage, the air pump 810 is controlled to perform a suction action, air in the space outside the sewage outlet 6103 is pumped out by the air pump 810, so that a negative pressure environment is formed in the pipeline outside the sewage outlet 6103, and the sewage in the filtering device 600 can be discharged under the action of the pressure difference, and then enters the recycling device 500.

Through the mode, can realize that sewage is discharged into recovery unit 500 in the high-efficient rapidly in filter equipment 600 and is collected, simultaneously, air pump 810 only is used for sucking the air and forms the negative pressure environment, and exhaust sewage does not pass through air pump 810, has avoided the water pump to carry and has caused the problem of pump body jam easily.

Meanwhile, an isolation mechanism is further arranged between the sewage outlet 6103 and the air pump 810, and the isolation mechanism can gradually disconnect the communication between the air pump 810 and the sewage outlet 6103 along with the discharge of sewage, so that the situation that when the air pump 810 continuously pumps, the sewage discharged from the sewage outlet 6103 is too large, and sewage is sucked into the air pump 810 is prevented. Therefore, the air pump 810 can be protected, and the working performance of the air pump 810 is prevented from being affected by sewage entering the air pump 810.

In a specific solution of this embodiment, the isolation mechanism includes a floating member, and a vent 832 is disposed on a communication path between the air pump 810 and the sewage outlet 6103. In the process of discharging sewage, the floating piece rises to the position below the vent holes 832 along with the water surface to block the vent holes 832.

In this embodiment, the floating member is a floating ball 822, and the diameter of the floating ball 822 is larger than that of the vent 832.

Further, a sewage temporary storage device 820 with an internal cavity is arranged between the filtering device 600 and the recovery device 500, the suction pipeline 811 is communicated with the internal cavity of the sewage temporary storage device 820, and air inside the sewage temporary storage device 820 is sucked. The water outlet of the temporary sewage storage device 820 is higher than the sewage inlet 550 of the recycling device 500.

When the filtering device 600 discharges the sewage outwards, the air pump 810 is controlled to perform a suction action, the air in the temporary sewage storage device 820 is pumped out by the air pump 810, and the sewage in the filtering device 600 is discharged into the temporary sewage storage device 820 under the action of the pressure difference. Then the air pump 810 is turned off, the suction effect generated by the air pump 810 disappears, and the sewage in the temporary sewage storage device 820 can be further discharged into the recycling device 500 under the action of gravity.

The drain outlet 6103 is communicated with the temporary sewage storage 820 through a drain pipeline 240, and the drain pipeline 240 is provided with a drain control valve 241 capable of being opened/closed to control the on/off of the drain pipeline 240.

When the circulation pump 400 drives the water in the water container 100 to perform the circulation filtration, the drain control valve 241 is in a closed state, and the drain pipeline 240 is disconnected. When it is required to discharge the contaminated water in the filtering apparatus 600, the washing machine sequentially performs the following steps:

s1, controlling the air pump 810 to perform a suction action, and pumping out air in the temporary sewage storage device 820;

s2, opening the blowdown control valve 241, conducting the blowdown pipeline 240, and discharging the sewage in the filtering device 600 into the sewage temporary storage device 820 under the action of pressure difference;

s3, the air pump 810 is closed, and the sewage in the sewage temporary storage device 820 is discharged into the recovery device 500 under the action of gravity.

The drain control valve 241 is kept closed at the beginning of the pumping action of the air pump 810, and the filtering device 600 is not communicated with the temporary sewage storage device 820, so that a relatively obvious negative pressure environment can be formed in the temporary sewage storage device 820 more quickly. Then, the drainage control valve 241 is opened, so that the sewage in the filtering apparatus 600 can be driven by a larger driving force, and thus the sewage can be efficiently and sufficiently drained into the temporary sewage storage apparatus 820.

In a further aspect of this embodiment, the air pump 810 is a bidirectional pump, which can perform a suction action to achieve a function of sucking air, and can also perform an air pumping action to introduce air into the temporary sewage storage device 820. In step S3, the air pump 810 is turned off to stop sucking air, and then the air pump 810 is turned on again to control the air pump 810 to perform the pumping action, so as to pump air into the temporary sewage storage 820 and drive the sewage therein to be discharged into the recycling device 500.

In another aspect of this embodiment, the air pump 810 is a suction pump having only a suction function. The washing machine further comprises an air pump (not shown), such as an air pump, in communication with the waste water temporary storage device. In the above solution, step S3 includes: the air pump 810 is turned off, the air pump is turned on, and air is introduced into the temporary sewage storage device 820 to drive the sewage therein to be discharged into the recycling device 500.

In this embodiment, the floating ball 822 is disposed inside the temporary sewage storage 820, and the vent 832 is disposed on the temporary sewage storage 820, preferably on the top wall. The isolation mechanism further comprises a guide portion 823 extending from the bottom of the temporary sewage storage device 820 to the vent 832, wherein the guide portion 823 is provided with a hollow channel, and the floating ball 822 is arranged in the hollow channel.

As shown in fig. 3 and 4, in the initial state, the temporary sewage storage device 820 is empty of water, and the floating ball 822 is located at the bottom end of the guide portion 823. During the process of discharging the sewage into the sewage temporary storage device 820, the water level in the sewage temporary storage device 820 is gradually raised. The through hole that is used for communicateing hollow channel and guide 823 exterior space is set up on the lateral wall of guide 823, and the inside surface of water of guide 823 risees in step, and floater 822 floats in the surface of water height all the time, rises gradually along with the surface of water rising. As shown in fig. 5 and 6, when the temporary sewage storage device 820 is filled with water, the floating ball 822 rises to the top of the temporary sewage storage device 820 along with the water surface and blocks the top of the temporary sewage storage device 820 from below the vent 832, so that the sewage cannot overflow further upwards through the vent 832, and the sewage is ensured not to overflow from the vent 832 and enter the air pump 810.

In the above scheme, the blocking of the vent 832 is realized by the floating ball 822 arranged in the temporary sewage storage device 820, the vent 832 can be blocked when the temporary sewage storage device 820 reaches a full water state, and on the premise that sewage cannot enter the air pump 810, the filtering device 600 can discharge a larger amount of sewage at one time, so that the sewage discharge efficiency is improved. The guide part 823 is arranged to guide the movement of the floating ball 822, so that the floating ball 822 can only reciprocate in the guide part 823, and the situation that the vent 832 cannot be blocked due to deviation of the movement track of the floating ball 822 is avoided.

In this embodiment, the guide portion 823 is a circular tube structure, and the inner diameter of the guide portion 823 is larger than the outer diameter of the floating ball 822. The floating ball 822 and the guide part 823 form clearance fit, so that the friction resistance of the floating ball 822 in the reciprocating motion inside the guide part 823 is reduced or even eliminated, and the situation that the floating ball 822 is clamped inside the guide part 823 and cannot rise along with the water surface is avoided.

In the preferred scheme of this embodiment, the guiding portion 823 extends vertically inside the temporary sewage storage device 820, and is more favorable for the floating ball 822 to rise along with the rise of the water surface without hindrance to block the vent 832.

In a further aspect of this embodiment, a buffer portion 830 is disposed between the air pump 810 and the temporary sewage storage device 820, and a buffer chamber is disposed inside the buffer portion 830, and the buffer chamber is respectively communicated with the internal cavity of the temporary sewage storage device 820 and the air pump 810.

Specifically, the air pump 810 has an air inlet connected to the suction line 811, the suction line 811 is connected to the buffer 830, and the buffer 830 is connected to the temporary sewage storage 820 through the ventilation line 831.

In the above scheme, after the air pump 810 is turned on, the interior of the buffer part 830 and the interior of the temporary sewage storage device 820 can be pumped in a negative pressure state, and then after the blowdown control valve 241 is opened, the sewage in the filtering device 600 can be rapidly discharged under the action of pressure difference. When the sewage enters the temporary sewage storage device 820 too fast, the floating ball 822 floats to block the vent hole 832, and there may be a delay in the timing of filling the temporary sewage storage device 820 with sewage, so that a small amount of sewage overflows before the vent hole 832 is blocked. The overflowing sewage can be stored in the buffer chamber of the buffer part 830 and can not directly enter the air pump 810, thereby further avoiding the problem of water inlet of the air pump 810.

In a preferred embodiment of the present invention, the buffering portion 830 is disposed above the temporary sewage storage 820, and the ventilation pipe 831 extends vertically upward from the top wall of the temporary sewage storage 820 and communicates with the buffering portion 830. The air pump 810 is disposed above the buffer part 830, and the suction line 811 extends vertically upward from the top wall of the buffer part 830 to communicate the air pump 810 with the buffer chamber of the buffer part 830. In this case, the suction force required for the sewage to enter the buffer 830 and the air pump 810 is greater, and the air pump 810 is further prevented from entering the water.

In this embodiment, the lower end of the ventilation pipeline 831 is connected to the top wall of the temporary sewage storage device 820, and a vent 832 is formed at the connection position of the ventilation pipeline 831 and the temporary sewage storage device 820. The diameter of the floating ball 822 is larger than that of the vent pipe 831, the floating ball 822 rises along with the water surface to block the vent hole 832, namely the floating ball 822 moves to the lower end of the vent pipe 831 to block the lower end opening of the vent pipe 831.

In a further scheme of this embodiment, an air hole 821 is provided on the temporary sewage storage device 820, and the air hole 821 is communicated from the outside of the temporary sewage storage device 820 to the inside in a single direction. The ventilating holes 821 are preferably provided on the top wall of the temporary sewage storage device 820. After the air pump 810 sucks the interior of the temporary sewage storage device 820 to form a negative pressure environment and closes the environment, the external air enters the internal cavity of the temporary sewage storage device 820 through the air holes 821 under the action of the pressure difference, and then the sewage in the temporary sewage storage device is driven to be discharged into the recovery device 500.

In the above solution, the opening area of the air hole 821 is small, and when the air pump 810 is in an open state to perform a pumping action, the air entering the temporary sewage storage device 820 through the air hole 821 does not significantly affect the formation of a negative pressure environment. After the air pump 810 is turned off, the air in the temporary sewage storage device 820 is not pumped out any more, and due to the arrangement of the air holes 821, the interior of the temporary sewage storage device 820 can be quickly restored to be close to the atmospheric pressure, so that the sewage can be pushed to be discharged into the recovery device 500 through the air. By arranging the air holes 821 on the temporary sewage storage device 820, the situation that sewage cannot flow into the recovery device 500 after the air pump 810 stops working due to overlarge air pressure in the recovery device 500 is avoided.

On the other hand, the one-way valve plate or the similar structure is installed on the air hole 821 to control the one-way conduction of the air hole 821 from outside to inside, so that the condition that the sewage overflows from the air hole 821 after the sewage temporary storage device 820 is filled with water can be avoided.

In this embodiment, the recycling device 500 is disposed in the washing machine, and the sewage discharged by the filtering device 600 can enter the recycling device 500 to be collected, and can not be directly discharged along with the drainage water flow of the washing machine, so that the problem that the micro-plastics in the sewage enter the ecological cycle and pose potential threats to the ecological environment and human health is avoided. Adopt air pump 810 to draw the mode drive filter equipment 600 that the air produced the negative pressure environment outside drain 6103 and discharge, through sewage temporary storage device 820 and buffer 830 simultaneously to and set up in inside floater 822 of sewage temporary storage device 820 and guide 823 furthest guaranteed that discharged sewage can not be inhaled inside air pump 810, guaranteed the working property of air pump 810.

Example two

The difference between this embodiment and the first embodiment is as follows: the isolation mechanism consisting of the floating ball and the guide part is arranged in the buffer part.

Specifically, the buffer part is provided with a vent hole and is communicated with the air pump through a suction pipeline. The vent hole is preferably provided on the top wall of the cushioning portion. The buffer part is internally provided with a guide part which vertically extends upwards from the bottom to the vent hole, the side wall of the guide part is provided with a through hole, and the floating ball is arranged inside the guide part.

In this embodiment, set up the volume of sewage temporary storage device as being greater than filter equipment's volume, under the condition of washing machine normal operating, sewage generally can not be full of sewage temporary storage device completely. However, under some abnormal conditions, an overflow condition caused by a large amount of sewage entering the sewage temporary storage device may occur. At this time, the sewage enters the buffer part upwards along the ventilation pipeline and gradually accumulates in the buffer cavity of the buffer part, and cannot be directly sucked into the air pump.

In the process that sewage got into buffer portion, the water level in the buffer portion risees gradually, and the floater rises gradually in the guide portion along with the rising of water level, is close to the air vent at top. When the buffer part is filled with sewage, the floating ball rises to the uppermost end of the guide part, so that the vent hole at the lower end of the suction pipeline can be blocked, and the sewage is prevented from overflowing from the buffer part and being sucked into the air pump.

EXAMPLE III

As shown in fig. 7, the present embodiment is different from the first embodiment in that: the sewage temporary storage device 820 and the buffer part 830 are respectively provided with an isolation mechanism consisting of a floating ball 822 and a guide part 823, and the top wall of the sewage temporary storage device 820 and the top wall of the buffer part 830 are respectively provided with a vent 832 which can be blocked by the corresponding floating ball 822.

Specifically, the lower end of the vent pipe 831 is connected to the top wall of the temporary sewage storage 820, forming a vent 832. The lower end of the suction pipe 811 is connected to the top wall of the buffer portion 830 to form another vent 832.

Normally, when the filtering apparatus 600 discharges the sewage outwards, the floating ball 822 in the temporary sewage storage apparatus 820 rises along with the water surface until moving to the top of the temporary sewage storage apparatus 820, so as to block the vent 832 and prevent the sewage from overflowing from the temporary sewage storage apparatus 820. However, when the floating ball 822 of the temporary sewage storage 820 is accidentally blocked and cannot move, the ventilation pipe 831 and the temporary sewage storage 820 are always in a state of being communicated with each other, and under the condition that the filtering device 600 continuously discharges sewage, the sewage enters the buffer portion 830 upwards along the ventilation pipe 831.

The buffering part 830 of this embodiment is also provided with a floating ball 822, and if the sewage continuously enters the buffering part 830, the floating ball 822 in the buffering part 830 gradually rises along with the water surface. When the buffer 830 is filled with sewage, the floating ball 822 may block the vent 832 on the top wall of the buffer 830, i.e., block the lower end of the suction line 811, so that the sewage cannot overflow from the buffer 830 into the air pump 810.

In this embodiment, the floating balls 822 are disposed in the sewage temporary storage device 820 and the buffer portion 830, so that dual protection is achieved. Even if the floating ball 822 in the temporary sewage storage device 820 is out of work to cause sewage to overflow, the floating ball 822 in the buffer part 830 can also seal the vent 832 at the lower end of the suction pipeline 811 when the buffer part 830 is filled with sewage, so that the sewage is prevented from further overflowing the buffer part 830 and entering the air pump 810, and the device is safer and more reliable.

Example four

The present embodiment is different from the first embodiment in that: the floating ball is arranged between the temporary sewage storage device and the air pump. Specifically, the floater sets up in the vent line of intercommunication sewage temporary storage device and buffer.

In this embodiment, the vent line has a reducing section extending from bottom to top and having a diameter gradually decreasing, and the floating ball is disposed inside the reducing section. The diameter of the top end of the reducing section is smaller than that of the floating ball, and the floating ball rises to the top end of the reducing section along with the water surface to realize plugging.

In order to ensure that the floating ball can freely reciprocate in the reducing section, the diameter of the bottom end of the reducing section is larger than that of the floating ball. Furthermore, the below of undergauge section has spacing portion for prevent that the floater from falling to inside the sewage temporary storage device.

In a concrete scheme of this embodiment, vent line wholly is the toper structure that the cross section diameter diminishes gradually, sets up a plurality of apertures and vent line intercommunication on sewage temporary storage device's the roof. The floater is spacing in vent line by sewage temporary storage device's roof, and when sewage spilled over from sewage temporary storage device and got into vent line, the floater rose along with the surface of water, when reaching vent line's certain height department, the floater laminated completely along circumference with vent line's inner wall, realized the shutoff.

In another specific embodiment of this embodiment, the diameter of the ventilation pipeline gradually increases from bottom to top and then gradually decreases. The diameters of the top end and the bottom end of the vent pipeline are smaller than the diameter of the floating ball, and the maximum diameter of the vent pipeline is larger than the diameter of the floating ball. Because the diameter ratio of vent line bottom is little than the diameter of floater, the floater can be by spacing inside vent line, when sewage spills over from sewage temporary storage device and gets into vent line, the floater rises to vent line's a take the altitude department along with the surface of water, and the floater is laminated completely along circumference with vent line's inner wall, realizes the shutoff.

EXAMPLE five

As shown in fig. 3 and fig. 8 to 11, this embodiment is further limited to the first embodiment, and a blocking member 540 is disposed at the sewage inlet 550 of the recycling apparatus 500 and is in one-way communication from outside to inside.

When the air pump 810 performs a pumping action, the blocking member 540 may block the sewage inlet 550 of the recycling device 500, so that air in the recycling device 500 cannot be pumped out from the sewage inlet 550, and thus a space between the sewage outlet 6103 and the recycling device 500 is relatively independent. Therefore, under the suction action of the air pump 810, a negative pressure environment can be quickly formed outside the sewage outlet 6103, and the sewage discharge efficiency is improved. After the air pump 810 is turned off, the suction effect is removed, and the blocking member 540 opens the sewage inlet 550 under the hydraulic pressure, and the sewage enters the recycling device 500 to be collected.

Specifically, the block piece 540 specifically includes:

a base body 541 mounted on the sewage inlet 550 of the recovery apparatus 500;

the opening unit 542 is movable relative to the base 541, and opens/closes the space outside and inside the recovery apparatus 500.

Further, the recycling apparatus 500 includes a housing 510 having a recycling chamber therein, the sewage inlet 550 is provided on the housing 510 of the recycling apparatus 500, and an outer circumference of the sewage inlet 550 extends from an inner wall of the housing 510 of the recycling apparatus 500 to an inside of the recycling apparatus 500 to form a tubular portion 551 for a certain length. The base body 541 is mounted on the extended end of the tubular portion 551, and the opening portion 542 is movable relative to the extended end of the tubular portion 551 to open/close the opening of the extended end of the tubular portion 551.

In detail, the base body 541 is sleeved on the extending end of the tubular part 551, the opening part 542 covers the opening of the tubular part 551 from the outside of the tubular part 551 to realize sealing, and the opening part 542 turns over to open the opening in the direction far away from the tubular part 551. The blocking piece 540 is simple in structure, the opening portion 542 abuts against the right end face of the tubular portion 551, and the blocking piece cannot turn towards the inner side of the tubular portion 551, so that the sewage inlet 550 is communicated in a one-way mode from outside to inside.

In one embodiment, the opening portion 542 is made of a flexible material that can be elastically deformed, such as rubber. When the air pump 810 is started, the part of the opening part 542 covering the opening deforms in a protruding mode towards the interior of the tubular part 551, and the opening is sealed. The opening portion 542 can wrap an included angle between the inner wall of the tubular portion 551 and the right end face of the tubular portion 551 to a certain degree, so that the contact area between the opening portion 542 and the opening of the tubular portion 551 is increased. Meanwhile, the surface of the opening part 542 facing the tubular part 551 forms a convex surface, the surface area is increased, the stressed area of the opening part 542 subjected to negative pressure adsorption force is also increased, and then a better sealing effect can be achieved on the sewage inlet 550 through the blocking piece 540, so that the quick formation of a negative pressure environment is facilitated.

Further, the opening portion 542 and the base body 541 are integrally formed, that is, the whole blocking member 540 is made of a flexible material, and no additional connecting structure is needed between the base body 541 and the opening portion 542, so that the opening portion 542 and the base body 541 can move relatively, and the opening at the right end of the tubular portion 551 can be opened/blocked by the movement of the opening portion 542.

In another aspect of this embodiment, the opening portion of the blocking member is made of a hard material, and a surface of the opening portion opening toward the tubular portion is a convex surface protruding toward the inside of the tubular portion. Specifically, the opening of the tubular part is circular, the opening part is of a disc-shaped structure, and the surface of the opening part facing the opening of the tubular part is a cambered surface with a convex middle part.

When the opening of the tubular part is blocked by the opening part, the opening part is provided with the cambered surface and can partially extend into the opening, and the surface of the opening part, which is in contact with the tubular part, is inclined relative to the end surface of the tubular part, so that the opening can be blocked more firmly, and the sealing effect is better. Meanwhile, the cambered surface structure of the opening part increases the surface area, namely the stress area of the opening part under the suction force of the air pump is increased, so that the sealing performance can be further enhanced, and a negative pressure environment is better formed between the sewage draining outlet of the filtering device and the recovery device.

Furthermore, the opening part of the plugging piece and the base body are arranged separately and can be movably connected relatively. Specifically, the opening part and the base body are rotatably connected, and the opening part realizes the opening/closing of the opening of the tubular part through the overturning motion.

Or the opening part and the base body can be integrally formed by plastic, wherein the opening part and the base body are in hard shapes and cannot be obviously deformed. The opening part and the base body are connected through a connecting sheet with small thickness, and the connecting sheet is thin and can deform under small acting force, so that the opening part and the base body can move relatively.

In a further aspect of this embodiment, the outer periphery of the sewage inlet 550 extends from the outer wall of the housing 510 of the recycling device 500 to the outside of the recycling device 500 to form a connecting portion 552, and the connecting portion 552 is used for connecting with a pipeline and communicating with the sewage temporary storage device 820 through the pipeline. The end of the pipeline can be sleeved on the connecting part 552, so that the installation is more convenient.

In this embodiment, the one-way connection blocking member 540 is disposed at the sewage inlet 550 of the recycling device 500, and the blocking member 540 can seal the sewage inlet 550 of the recycling device 500 when the air pump 810 sucks air, so as to form a negative pressure environment more rapidly, increase the pressure difference that the sewage outlet 6103 can form, and further improve the efficiency of the filtering device 600 discharging sewage. After the air pump 810 is turned off, the blocking member 540 may automatically open the sewage inlet 550 under the impact of water flow, so that the sewage can smoothly enter the recycling device 500 to be collected.

EXAMPLE six

As shown in fig. 2 and 3, the present embodiment is further limited to the first embodiment, and the recycling apparatus 500 includes:

a housing 510 having a recovery chamber therein;

a filter assembly 520 disposed within the recovery chamber, dividing the recovery chamber into a first chamber 531 and a second chamber 532.

The sewage outlet 6103 of the filtering device 600 is communicated with the first chamber 531, the sewage carrying the filtering impurities enters the first chamber 531, the sewage enters the second chamber 532 after being filtered by the filtering component 520, and the filtering impurities are collected in the first chamber 531.

In the above scheme, after the recovery device 500 collects the sewage discharged by the filtering device 600, the sewage can be filtered by the internal filtering component 520, so as to separate out the filtering impurities in the sewage. Like this, the user can directly collect the filtration impurity of separating and handle, has avoided filtering impurity mixture in sewage, can't carry out the condition of efficient handling to it.

In particular, the filter assembly 520 may be a frame horizontally disposed at a certain height within the recovery chamber and a filter screen laid on the frame. After the sewage carrying the filtering impurities enters the first chamber 531, the water can enter the second chamber 532 through the filtering assembly 520, and the filtering impurities are blocked by the filter screen and remain on the upper surface of the filtering assembly 520. The filter screen of the filter assembly 520 can filter the micro plastic in the sewage to prevent the micro plastic from mixing into the water body.

In this embodiment, the recycling device 500 is installed on the cabinet 10 of the washing machine in an insertable/removable manner, and the user can remove the recycling device 500 from the cabinet 10 for cleaning.

Specifically, the housing 510 of the recycling apparatus 500 is provided on the cabinet 10 to be inserted/extracted, and the upper side of the housing 510 has an opening. When the user draws the housing 510 out of the cabinet 10, the filtered impurities attached to the upper surface of the filter assembly 520 may be cleaned through the opening of the upper side of the housing 510. The filter assembly 520 is preferably removably attached to the housing 510, and a user may remove the filter assembly 520 from the interior of the housing 510 and remove it for cleaning.

In a preferred embodiment of this embodiment, a water outlet is disposed on the second chamber 532 for discharging filtered clean water. By arranging the water outlet on the second chamber 532, the clean water entering the second chamber 532 can be discharged out of the recovery device 500 in time, and the overflow phenomenon of the recovery device 500 when the amount of sewage discharged by the filtering device 600 is large is avoided. Otherwise, the capacity of the second chamber 532 needs to be increased, that is, the volume of the recycling device 500 needs to be increased, so that the recycling device occupies a large space inside the washing machine, which is not beneficial to the miniaturization of the whole volume of the washing machine.

On the other hand, the water in the second chamber 532 can be automatically discharged from the water outlet, and when the user cleans the recycling device 500, only the filtered impurities on the filtering component 520 need to be cleaned, and the clean water in the second chamber 532 does not need to be manually poured out. When the filter assembly 520 is detachably installed in the housing 510, a user does not need to completely remove the housing 510 from the cabinet 10 of the washing machine even and only needs to remove the filter assembly 520 for cleaning, which is more convenient to operate.

Preferably, the water outlet of the second chamber 532 is communicated with the water containing barrel 100 through a pipeline, and the clean water filtered by the filtering component 520 can be introduced into the water containing barrel 100 for reuse, so that the water consumption of the washing machine can be saved. Or, the water outlet of the second chamber 532 can be communicated with the outside of the washing machine through a pipeline, and the filtered water without the filtered impurities is directly discharged out of the washing machine, so that the problem that the micro-plastics enter ecological cycle is avoided.

In this embodiment, the washing machine further includes a detergent dispenser having a water inlet box 300 communicated with the water tub 100. The water outlet of the second chamber 532 of the recycling device 500 is communicated with the water inlet box 300, and the filtered clean water is introduced into the water inlet box 300 and then enters the water containing cylinder 100 through the water inlet box 300.

In the preferred scheme of this embodiment, the recovery unit 500 is integrally disposed inside the water inlet box 300, and after the sewage discharged from the filtering unit 600 is filtered, the clean water flows out of the water outlet of the second chamber 532 and enters the water inlet box 300, and then enters the water containing barrel 100 along the pipeline connecting the water inlet box 300 and the water containing barrel 100.

Through the structure, on one hand, water is returned to the water containing barrel 100 through the water inlet box 300 of the detergent feeding device, and when the filtered clean water in the recovery device 500 passes through the water inlet box 300, the detergent possibly existing in the water inlet box 300 can be washed away, so that the utilization rate of the detergent is improved. On the other hand, the space inside the water inlet box 300 can be fully utilized, and meanwhile, a pipeline is not required to be separately arranged to communicate the recovery device 500 with the water inlet box 300, so that the installation space inside the washing machine is saved.

In this embodiment, the inside filtering component 520 that sets up of recovery unit 500 can filter the sewage of collecting to will filter impurity and separate out from the aquatic, more convenience of customers handles. The recycling device 500 is arranged inside the water inlet box 300, so that the filtered clean water in the recycling device 500 can enter the water containing barrel 100 through the water inlet box 300 to be recycled, the water consumption of the washing machine is saved, and the internal structure of the washing machine is more compact.

EXAMPLE seven

As shown in fig. 2 and 3, the present embodiment provides a control method of a washing machine according to the first embodiment, which controls an air pump 810 to perform a pumping action a plurality of times when the filtering apparatus 600 needs to discharge contaminated water, thereby completing the discharge of the contaminated water in the filtering apparatus 600 a plurality of times.

In one aspect of the present embodiment, the washing machine controls the sewage in the filtering device 600 to be discharged in a plurality of times according to the amount of the sewage discharged by the air pump 810 per pumping action.

Specifically, a water level detection device is disposed on the temporary sewage storage device 820, so as to detect the height of the water level inside the temporary sewage storage device 820. The control method of the washing machine includes:

a1, controlling the air pump 810 to perform a pumping action;

a2, the water level in the temporary sewage storage device 820 rises to a first set water level, and the air pump 810 is closed;

a3, the water level in the temporary sewage storage 820 is lowered to the second set water level, and the process returns to step A1.

Further, the washing machine is provided with a predetermined number of times N that the air pump 810 performs a pumping action according to the maximum amount of contaminated water in the filtering apparatus 600 and the difference between the first set water level and the second set water level ₁ When the execution times of the step A1 reach N ₁ Then, the washing machine does not perform the step A3 after the step a2 is completed, and the draining process of the filtering apparatus 600 is finished.

In another aspect of the present embodiment, the washing machine controls the contaminated water in the filtering apparatus 600 to be discharged in a plurality of times according to the duration of each pumping action performed by the air pump 810.

Specifically, the control method of the washing machine includes:

b1, controlling the air pump 810 to perform a pumping action;

b2, the duration of the pumping action of the air pump 810 reaches a first preset duration t ₁ The air pump 810 is turned off;

b3 and the air pump 810 are turned off for a second preset time period t ₂ And returns to step B1.

Further, the pumping action is continuously performed for a first preset time period t according to the maximum amount of sewage in the filtering device 600 ₁ The amount of sewage discharged, the washing machine is provided with a preset number of times N that the air pump 810 performs a pumping action ₂ When the number of execution times of step B1 reaches N ₂ Then, the washing machine does not perform the step B3 after the step B2 is performed, and the drain process of the filter device 600 is finished.

Through the above two schemes, the washing machine can control the amount of sewage discharged from the filtering device 600 when the air pump 810 performs one pumping action, ensure that the amount of sewage does not exceed the maximum volume of the sewage temporary storage device 820, and wait for the sewage received in the sewage temporary storage device 820 to be discharged into the recycling device 500 after the completion of one pumping action and then perform the next pumping action. Thus, in the process of discharging sewage from the filtering apparatus 600, the sewage temporary storage apparatus 820 does not overflow, and the sewage is prevented from overflowing the sewage temporary storage apparatus 820 and being sucked into the air pump 810.

In this embodiment, the volume of the temporary sewage storage device 820 may be smaller than the volume of the filtering device 600, and the amount of sewage discharged by the air pump 810 during one pumping operation may be controlled to prevent the temporary sewage storage device 820 from overflowing, so that the overall volume of the temporary sewage storage device 820 may be reduced, and the installation space inside the washing machine may be saved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. A washing machine, comprising:

a water containing cylinder;

it is characterized by also comprising:

2. The washing machine as claimed in claim 1, wherein the isolation mechanism includes a float member, and a communication path between the suction device and the drain outlet is provided with a vent hole; in the process of sewage discharge, the floating piece rises to the vent hole along with the water surface to plug the vent hole.

3. The washing machine as claimed in claim 2, wherein the filtering device is communicated with a temporary sewage storage device having an internal cavity, and the temporary sewage storage device is communicated with the recovery device; the suction device is communicated with the internal cavity of the temporary sewage storage device and is used for sucking air in the temporary sewage storage device;

the floating piece is arranged in the temporary sewage storage device, and the vent hole is arranged on the temporary sewage storage device; and/or the floating piece is arranged between the temporary sewage storage device and the suction device.

4. The washing machine as claimed in claim 3, wherein a buffer part is arranged between the suction device and the temporary sewage storage device, a buffer chamber is arranged in the buffer part, and the buffer chamber is respectively communicated with the internal cavity of the temporary sewage storage device and the suction device;

5. A washing machine as claimed in claim 3 wherein the isolation mechanism further comprises a guide portion extending from the bottom of the waste water buffer to the vent, the guide portion having a hollow passage in which the float member is disposed.

6. A washing machine as claimed in claim 5, wherein a through hole for communicating the hollow passage with the outside space of the guide portion is provided on the sidewall of the guide portion.

7. A washing machine as claimed in claim 5 wherein the float member is a float ball and the guide portion is of tubular configuration, the inner diameter of the guide portion being greater than the outer diameter of the float ball.

8. The washing machine as claimed in claim 3, wherein the waste water buffer device is connected with an air pipe, and the air pipe is communicated with the suction device; the floating piece is a floating ball arranged in the temporary sewage storage device, and the diameter of the floating ball is larger than that of the vent pipeline.

9. The washing machine as claimed in claim 3, wherein the floating member is a floating ball, and an air passage is provided between the temporary sewage storage means and the suction means; the vent pipeline is provided with a reducing section with the diameter gradually reduced by extending from bottom to top, and the floating ball is arranged inside the reducing section; the diameter of the top end of the reducing section is smaller than that of the floating ball, and the floating ball rises to the top end of the reducing section along with the water surface to realize plugging.

10. The washing machine as claimed in any one of claims 3 to 9, wherein the temporary wastewater storage device is provided with a vent hole, and the vent hole is communicated in one direction from the outside to the inside of the temporary wastewater storage device.