CN111621963A

CN111621963A - Washing barrel, washing machine and control method

Info

Publication number: CN111621963A
Application number: CN201910153188.6A
Authority: CN
Inventors: 徐文冰
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-09-04
Anticipated expiration: 2039-02-28
Also published as: CN111621963B

Abstract

The invention discloses a washing barrel, and belongs to the technical field of washing machines. The washing tub includes: the wave wheel is arranged at the bottom of the barrel body, and the wave wheel also comprises a drain valve arranged at the bottom of the barrel body; the drain valve comprises one or more drain holes, a valve plate is arranged at the position of the drain hole, and the drain hole is opened or closed by switching the position of the valve plate; the valve plate is fixed at the position of the drainage hole through a rotating shaft. By adopting the optional embodiment, the washing barrel is an independent structure separated from the washing machine, is convenient to carry, and a user can use the washing barrel of the user to wash clothes on the shared washing machine, so that the clothes are isolated from other clothes, and the probability of bacterial cross infection is reduced; the opening and closing operation of the drain valve is easy to control, the reliability is high, and the service life is long. The invention also discloses a washing machine and a washing machine control method.

Description

Washing barrel, washing machine and control method

Technical Field

The invention relates to the technical field of laundry equipment, in particular to a washing barrel, a washing machine and a control method.

Background

At present, the shared economy is rapidly developed, and the shared washing machine is more and more popular with users because the shared washing machine does not occupy indoor space.

In the existing shared washing machine, all clothes are washed by a common washing barrel, and bacteria can be cross-infected between the clothes washed in front and back through the washing barrel. Moreover, some users put various kinds of clothes, even shoes and socks, into the washing machine for washing, resulting in poor hygienic conditions of the washing tub of the shared washing machine, and therefore, many users refuse to use the shared washing machine.

How to avoid the cross infection of bacteria caused by sharing the washing tub of the washing machine is a problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the invention provides a washing barrel, a washing machine and a control method. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, a washing tub is provided.

In some optional embodiments, the washing tub comprises: the wave wheel is arranged at the bottom of the barrel body, and the wave wheel also comprises a drain valve arranged at the bottom of the barrel body; the drain valve comprises one or more drain holes, a valve plate is arranged at the position of the drain hole, and the drain hole is opened or closed by switching the position of the valve plate; the valve plate is fixed at the position of the drainage hole through a rotating shaft.

Optionally, the outer edge of the valve plate is further provided with a limiting shifting sheet, and the limiting shifting sheet is used for being matched with a limiting part on the wall of the fixed barrel of the washing machine to switch the position of the valve plate.

Optionally, the valve plate stays at the position of the drain hole under the action of centrifugal force to close the drain hole.

Optionally, the drain valve includes an upper layer of box body and a lower layer of box body, a drain hole is arranged on each layer of box body, and the valve plate is switched in a gap between the upper and lower drain holes to open or close the drain holes.

Optionally, the axis of the impeller, the fixed rotating shaft of the valve plate, and the center of gravity of the valve plate are on the same straight line.

Optionally, the axis of the impeller, the fixed rotating shaft of the valve plate, the center of gravity of the valve plate and the center of gravity of the limiting shifting piece are on the same straight line.

Optionally, the washing tub comprises: the wave wheel is arranged at the bottom of the barrel body; a first bayonet matched with a motor clutch impeller shaft is arranged at the axis of the bottom of the impeller; a second bayonet matched with a motor clutch dehydration shaft is arranged at the axis of the bottom of the barrel body; the barrel body is further provided with an identification chip used for carrying out identity identification with the washing machine. By adopting the optional embodiment, the washing barrel is an independent structure separated from the washing machine, the washing barrel is convenient to carry, a user can use the washing barrel to wash clothes on the shared washing machine, and after washing is finished, the user takes the whole washing barrel out of the washing machine and lifts the washing barrel back to a place for airing, so that the washing barrel is isolated from other clothes, and the probability of bacterial cross infection is reduced; moreover, through the identification chip, the washing barrel can be subjected to identity identification and used as a basis for unlocking or opening the washing machine.

Optionally, the identification chip is injection molded on the bottom of the barrel body. By adopting the optional embodiment, the identification chip can be reliably fixed, and the service life of the identification chip is prolonged.

Optionally, the washing tub further includes a double-row bearing, an upper half of the double-row bearing is fixed at the bottom of the pulsator and adapted to the pulsator shaft, and a lower half of the double-row bearing is fixed at the bottom of the tub body and adapted to the dewatering shaft. By adopting the alternative embodiment, the washing machine can ensure that the washing barrel and the motor clutch of the washing machine are combined more tightly and firmly.

Optionally, the barrel body is of a trapezoidal structure with a wide upper part and a narrow lower part, and a drain hole is formed in the upper half part of the barrel body. With this alternative embodiment, water in the washing tub can be drained through the drain holes at the bottom of the tub body, spin-drying is performed after the drainage is completed, and the thrown water is drained through the drain holes at the upper half of the tub body.

Optionally, the washing tub further comprises a handle. With this alternative embodiment, the user can conveniently wash the laundry.

According to a second aspect of an embodiment of the present invention, there is provided a washing machine.

In some optional embodiments, the washing machine includes: the washing machine comprises a motor, a motor clutch, a fixed barrel and the washing barrel in any optional embodiment, wherein a limiting part for switching the position of the valve plate is arranged on the barrel wall of the fixed barrel.

Optionally, the limiting part is of a telescopic structure, the outer edge of the valve plate is provided with a limiting shifting sheet, the limiting part abuts against the limiting shifting sheet when extending out of the wall of the fixed barrel, and the limiting part keeps a preset gap with the limiting shifting sheet when being accommodated in the wall of the fixed barrel.

Optionally, the limiting part is a magnetic element, and the position of the valve plate is switched through the magnetic adsorption between the limiting part and the valve plate.

Optionally, the washing machine further comprises a reading device for reading an identification chip of the washing tub; the fixed barrel is arranged in the machine body of the washing machine and is used for containing the washing barrel, the bottom of the fixed barrel is connected with the dehydration shaft of the motor clutch, and a drain hole is formed in the bottom of the fixed barrel; the impeller shaft of the motor clutch is clamped with the first bayonet at the bottom of the impeller, and the dehydration shaft of the motor clutch is clamped with the second bayonet at the bottom of the barrel body. By adopting the optional embodiment, the washing barrel and the washing machine can be separated, a user can use the washing barrel of the user to wash clothes on the shared washing machine, and after washing is finished, the user takes the whole washing barrel out of the washing machine and lifts the washing barrel back to a place for airing, so that the clothes are isolated from other people, and the probability of bacterial cross infection is reduced; moreover, the reading device can identify the washing barrel, and the washing barrel is guaranteed to be matched with the washing machine for use.

Optionally, the output signal of the reading device is used as an unlocking signal or a starting signal of the washing machine. By adopting the optional embodiment, only the matched washing barrel can be identified, the operation safety of the washing process is ensured, and potential safety hazards caused by the unmatched washing barrel are prevented.

Optionally, the position relationship between the identification chip and the reading device is set as: when the washing tub is mounted in place, the identification chip reaches the reading range of the reading device. By adopting the optional embodiment, the identification chip can be read by the reading device only when the washing barrel is installed in place, and when the washing barrel is not installed in place due to improper operation, the washing barrel is not in the reading range of the reading device, and the reading device cannot read the information of the identification chip, so that the washing machine cannot be unlocked or started, and the safety and reliability of the washing process are ensured.

Optionally, the fixed tub has the same shape as the washing tub and a size slightly larger than the washing tub. By adopting the optional embodiment, after the washing barrel is arranged inside the fixed barrel, the washing barrel is tightly attached to the fixed barrel, so that the reliable fixation of the washing barrel in the working process is ensured, and the separation from the motor clutch is avoided.

Optionally, a fastening member is further disposed between the washing tub and the fixing tub. By adopting the optional embodiment, the fastener is arranged between the washing barrel and the fixed barrel, so that the stability between the washing barrel and the fixed barrel can be further enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

Optionally, the fastener is a protrusion or rib provided on the inner side of the fixed barrel wall. By adopting the optional embodiment, the bulges or ribs are arranged on the inner side of the wall of the fixed barrel, so that the pressure and the friction force between the washing barrel and the fixed barrel are increased, the stability between the washing barrel and the fixed barrel is enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

Optionally, the fastener is a protrusion or rib provided on an outer side of a tub wall of the washing tub. By adopting the optional embodiment, the bulge or rib is arranged on the outer side of the wall of the washing barrel, so that the pressure and the friction force between the washing barrel and the fixed barrel are increased, the stability between the washing barrel and the fixed barrel is enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

According to a third aspect of the present invention, there is provided a control method for controlling the washing machine of any one of the above-described alternative embodiments.

In some optional embodiments, the control method comprises the steps of: controlling the washing barrel to rotate, and sealing the drain hole by the valve plate under the action of centrifugal force; the washing program is started.

Optionally, the laundry program comprises: washing program, rinsing program and spin-drying program.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

(1) the washing barrel is an independent structure separated from the washing machine, is convenient to carry, and can be used by a user to wash clothes on the shared washing machine, after washing is finished, the user takes the whole washing barrel out of the washing machine and lifts the washing barrel back to a place for airing, so that the washing barrel is isolated from clothes of other people, and the probability of bacterial cross infection is reduced; moreover, through the identification chip, the identity of the washing barrel can be identified and used as a basis for unlocking or starting the washing machine;

(2) the opening and closing operation of the drain valve is easy to control, the reliability is high, and the service life is long.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic perspective view of a washing tub according to an exemplary embodiment;

FIG. 2 is a schematic cross-sectional structural view of a washing tub shown in accordance with an exemplary embodiment;

FIG. 3 is a schematic structural view of a tub bottom of a washing tub, according to an exemplary embodiment;

FIG. 4 is a schematic view of a handle of a washing tub shown in accordance with an exemplary embodiment;

FIG. 5 is a schematic structural view of a washing machine according to an exemplary embodiment;

FIG. 6 is a schematic structural view of a motor clutch of the washing machine according to an exemplary embodiment;

fig. 7 is a perspective view illustrating a washing tub according to another exemplary embodiment;

fig. 8 is a schematic bottom view of a washing tub according to another exemplary embodiment;

fig. 9 is a schematic structural view of a water discharge valve according to an exemplary embodiment;

fig. 10 is a schematic view showing a disassembled structure of a water discharge valve according to an exemplary embodiment;

fig. 11 is a flowchart illustrating a control method of a washing machine according to an exemplary embodiment.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.

Fig. 1, 2 and 3 show an alternative embodiment of a washing tub.

In this alternative embodiment, the washing tub includes: the washing machine comprises a barrel body 10 and a wave wheel 20, wherein the wave wheel 20 is installed at the bottom of the barrel body 10; a first bayonet matched with a motor clutch impeller shaft is arranged at the axis of the bottom of the impeller; a second bayonet 12 matched with a motor clutch dehydration shaft is arranged at the axis of the bottom of the barrel body 10; the barrel body is further provided with an identification chip used for carrying out identity identification with the washing machine.

By adopting the optional embodiment, the washing barrel is an independent structure separated from the washing machine, the washing barrel is convenient to carry, a user can use the washing barrel to wash clothes on the shared washing machine, and after washing is finished, the user takes the whole washing barrel out of the washing machine and lifts the washing barrel back to a place for airing, so that the washing barrel is isolated from other clothes, and the probability of bacterial cross infection is reduced; moreover, through the identification chip, the washing barrel can be subjected to identity identification and used as a basis for unlocking or starting the washing machine.

Optionally, the identification chip is disposed at the bottom of the barrel body. Optionally, the identification chip is disposed on the outer sidewall of the barrel body.

Optionally, the identification chip is injection molded on the bottom of the barrel body. By adopting the optional embodiment, the identification chip can be reliably fixed, and the damage probability of the identification chip is reduced and the service life of the identification chip is prolonged due to the injection molding at the bottom of the barrel body.

Optionally, as shown in fig. 2, the washing tub 10 further includes a double-row bearing 21, an upper half of the double-row bearing is fixed at the bottom of the pulsator 20 and is adapted to a pulsator shaft of a motor clutch of the washing machine, and a lower half of the double-row bearing is fixed at the bottom of the tub 10 and is adapted to a dewatering shaft of the motor clutch of the washing machine. Or, optionally, the washing tub further includes two bearings, wherein one of the bearings is fixed at the bottom of the pulsator and is adapted to a pulsator shaft of a washing machine motor clutch, and the other bearing is fixed at the bottom of the tub and is adapted to a dewatering shaft of the washing machine motor clutch.

By adopting the alternative embodiment, the washing machine can ensure that the washing barrel and the motor clutch of the washing machine are combined more tightly and firmly.

Optionally, as shown in fig. 3, the bottom of the barrel body is provided with a drain hole 13. By adopting the optional embodiment, the drain hole is arranged at the bottom of the barrel body of the washing barrel, so that water in the washing barrel can be drained quickly, and the washing barrel is simple in structure and convenient to operate.

Optionally, the number of the drain holes at the bottom of the barrel body is one or more.

Optionally, the barrel body is of a trapezoidal structure with a wide upper part and a narrow lower part, and a drain hole is formed in the upper half part of the barrel body.

With this alternative embodiment, water in the washing tub can be drained through the drain holes at the bottom of the tub body, spin-drying is performed after the drainage is completed, and the thrown water is drained through the drain holes at the upper half of the tub body.

Optionally, the barrel body is of a conical structure, and a drain hole is formed in the upper half part of the barrel body.

Optionally, the number of the drainage holes on the upper half part of the barrel body is one or more.

Alternatively, as shown in FIG. 4, the handle 15 snaps over the upper edge of the bucket when stowed. By adopting the optional embodiment, the lifting handle can be ensured to be hidden and collected in the washing process, and the washing of clothes is not hindered.

Fig. 5 shows an alternative embodiment of the washing machine. FIG. 6 illustrates an alternative embodiment of a motor clutch.

In this alternative embodiment, the washing machine comprises a motor 50, a motor clutch 60, a fixed tub 30, and the washing tub described above, and further comprises a reading device for reading an identification chip of the washing tub. The fixed tub 30 is installed in the body of the washing machine to accommodate the washing tub, the bottom of the fixed tub is connected to the dehydrating shaft 61 of the motor clutch, and the bottom of the fixed tub is provided with a drain hole; the impeller shaft 62 of the motor clutch is clamped with the first bayonet at the bottom of the impeller, and the dehydration shaft 61 of the motor clutch is clamped with the second bayonet 12 at the bottom of the barrel body.

During washing, a user installs a washing tub containing laundry into the fixed tub, and during washing, the fixed tub is used for limiting the washing tub and rotating synchronously with the washing tub to prevent the washing tub from being separated from the motor clutch.

By adopting the optional embodiment, the washing barrel is separated from the washing machine, a user can use the washing barrel of the user to wash clothes on the shared washing machine, and after washing is finished, the user takes the whole washing barrel out of the washing machine and lifts the washing barrel back to a place for airing, so that the clothes are isolated from other people, and the probability of bacterial cross infection is reduced; moreover, the reading device can identify the washing barrel, and the washing barrel is guaranteed to be matched with the washing machine for use.

Optionally, the output signal of the reading device is used as an unlocking signal or a switching-on signal of the washing machine. By adopting the optional embodiment, only the matched washing barrel can be identified, the operation safety of the washing process is ensured, and potential safety hazards caused by the unmatched washing barrel are prevented.

Optionally, the position relationship between the identification chip and the reading device is set as: when the washing tub is mounted in place, the identification chip reaches the reading range of the reading device. For example, the reading device is disposed at the bottom of the washing machine body, and when the washing tub is not mounted in place, the identification chip cannot be identified because it is not in the reading range of the reading device. By adopting the optional embodiment, the identification chip can be read by the reading device only when the washing barrel is installed in place, and when the washing barrel is not installed in place due to improper operation, the washing barrel is not in the reading range of the reading device, and the reading device cannot read the information of the identification chip, so that the washing machine cannot be unlocked or started, and the safety and reliability of the washing process are ensured.

Optionally, the dewatering shaft 61 of the motor clutch is also connected with a bearing at the bottom of the barrel body. By adopting the optional embodiment, the dehydration shaft of the motor clutch is connected with the bearing at the bottom of the barrel body, so that the stability of the rotating process of the barrel body can be enhanced.

Optionally, the impeller shaft 62 of the motor clutch is also connected with the bearing at the bottom of the impeller. By adopting the optional embodiment, the impeller shaft of the motor clutch is connected with the bearing at the bottom of the impeller, so that the stability of the rotation process of the impeller can be enhanced.

Optionally, the fixed tub has the same shape as the washing tub and a size slightly larger than the washing tub.

By adopting the optional embodiment, after the washing barrel is arranged inside the fixed barrel, the washing barrel is tightly attached to the fixed barrel, so that the reliable fixation of the washing barrel in the working process is ensured, and the separation from the motor clutch is avoided.

Optionally, a fastening member is further disposed between the washing tub and the fixing tub.

By adopting the optional embodiment, the fastener is arranged between the washing barrel and the fixed barrel, so that the stability between the washing barrel and the fixed barrel can be further enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

Optionally, the fastener is a protrusion or rib provided on the inner side of the fixed barrel wall.

By adopting the optional embodiment, the bulges or ribs are arranged on the inner side of the wall of the fixed barrel, so that the pressure and the friction force between the washing barrel and the fixed barrel are increased, the stability between the washing barrel and the fixed barrel is enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

Optionally, the fastener is a protrusion or rib provided on an outer side of a tub wall of the washing tub.

By adopting the optional embodiment, the bulge or rib is arranged on the outer side of the wall of the washing barrel, so that the pressure and the friction force between the washing barrel and the fixed barrel are increased, the stability between the washing barrel and the fixed barrel is enhanced, and the washing barrel is ensured to be reliably fixed in the washing process.

Optionally, the height of the protrusion is the width of the gap between the fixed tub wall and the washing tub wall.

Optionally, the height of the rib is the width of the gap between the fixed tub wall and the washing tub wall.

Optionally, the ribs are transversely disposed. Optionally, the ribs are longitudinally disposed. Optionally, the ribs are obliquely arranged. Optionally, the ribs are arranged helically. By adopting the optional embodiment, the washing barrel can be reliably fixed in the fixed barrel after being installed in the washing machine, and the washing barrel is prevented from being thrown out in the high-speed rotation process.

In another optional embodiment, the washing barrel further comprises a drain valve arranged at the bottom of the barrel body, the drain valve comprises one or more drain holes, valve plates are further arranged at the positions of the drain holes, and the drain valve opens or closes the drain holes by switching the positions of the valve plates; the valve plate is fixed at the position of the drainage hole through a rotating shaft.

Fig. 7 and 8 show an alternative embodiment of the washing tub.

In this alternative embodiment, a drain valve 100 is provided at the bottom of the washing tub for draining water.

Alternatively, the drain valve 100 is disposed at a bottom center position of the washing tub. Alternatively, the drain valve 100 is disposed at a bottom rim position of the washing tub.

Optionally, the drain valve controls the opening or closing of the drain water path via a solenoid valve.

Figures 9 and 10 show an alternative embodiment of a drain valve.

In this alternative embodiment, the drain valve 100 includes a drain hole 101, a valve plate 102 is further disposed at the position of the drain hole 101, the drain hole 101 is opened or closed by switching the position of the valve plate 102 in the drain valve 100, and the valve plate 102 is fixed at the position of the drain hole 101 by a rotating shaft 103. When the valve plate 102 is overlapped with the drain hole 101, the drain valve 100 is closed, and when the valve plate 102 is staggered with the drain hole 101, the drain valve 100 is opened, and the drainage speed can be controlled by controlling the staggered angle of the valve plate 102 and the drain hole 101. When the washing tub is rotated by the motor and the motor clutch, the valve plate 102 stays at the position of the water discharge hole 101 for closing the water discharge hole 101 by centrifugal force.

Optionally, under the action of centrifugal force, the axis of the impeller, the fixed rotating shaft of the valve plate and the gravity center of the valve plate are on the same straight line. By adopting the alternative embodiment, the valve plate can effectively close the drain hole under the action of centrifugal force in the rotation process of the washing barrel.

Optionally, the valve plate 102 is of a symmetrical configuration, i.e., the center of gravity of the valve plate is on the center axis. By adopting the optional embodiment, the position of the valve plate in the rotating process can be accurately controlled, and the drain hole can be reliably sealed.

Optionally, the outer edge of the valve plate 102 is further provided with a limiting shifting piece 104, and the limiting shifting piece 104 is used for cooperating with a limiting part on the fixed tub wall of the washing machine to switch the position of the valve plate 102. When the limit part touches the limit paddle 104, the position of the valve plate 102 is switched, and the valve plate 102 is separated from the original position. For example, in the washing process, the position of the valve plate 102 coincides with the position of the drain hole 101 to close the drain hole, when the washing is finished and drainage is needed, the limiting part touches the limiting shifting piece 104, the angle of the valve plate 102 and the drain hole 101 is staggered, and the drain valve is opened to realize drainage. When the draining is finished, the valve plate 102 is overlapped with the drain hole under the action of centrifugal force to close the drain hole when the spin-drying program is executed.

Alternatively, as shown in fig. 10, the drain valve 100 includes upper and lower cartridge bodies, each cartridge body is provided with a drain hole, and the valve sheet 102 is switched in a gap between the upper and lower drain holes to open or close the drain holes.

Alternatively, the number of the drain holes 101 may also be two or more. With this alternative embodiment, the water discharge speed can be controlled according to the water level of the washing water, and when the water level is high, the plurality of water discharge holes are simultaneously opened, and when the water level is low, one or more of the water discharge holes are opened.

Alternatively, the number of the valve sheet 102 may be two or more. Alternatively, one valve sheet 102 corresponds to one drain hole 101. Optionally, one valve plate 102 corresponds to a plurality of drainage holes, for example, the valve plate 102 is arc-shaped, and one valve plate covers the plurality of drainage holes.

In other alternative embodiments, the present invention further provides a washing machine, including: the washing machine comprises a motor, a motor clutch, a fixed barrel and the washing barrel according to any optional embodiment, wherein a limiting part for switching the position of the valve plate is arranged on the barrel wall of the fixed barrel of the washing machine.

Optionally, the limiting part is of a telescopic structure, the outer edge of the valve plate is provided with a limiting shifting piece, the limiting part abuts against the limiting shifting piece when extending out of the wall of the fixed barrel, and the limiting part keeps a preset gap with the limiting shifting piece when being accommodated in the wall of the fixed barrel.

In other alternative embodiments, the present invention further provides a control method for controlling the washing machine according to any one of the above alternative embodiments, as shown in fig. 11, the control method includes the steps of: and step 11, controlling the washing barrel to rotate, and sealing the drain hole by the valve plate under the action of centrifugal force. Step 12, the washing program is started.

Because the valve plate of the drain valve needs to seal the drain hole under the action of centrifugal force, after the washing machine is started, the washing barrel needs to be controlled to rotate at first to ensure that the drain hole is reliably sealed, and then a washing program is carried out.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

It should be understood that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A washing tub, comprising: the water-saving washing machine comprises a barrel body and a wave wheel, wherein the wave wheel is arranged at the bottom of the barrel body;

the drain valve comprises one or more drain holes, a valve plate is arranged at the position of the drain hole, and the drain hole is opened or closed by switching the position of the valve plate;

the valve plate is fixed at the position of the drainage hole through a rotating shaft.

2. The washing tub as claimed in claim 1, wherein the valve plate has a limiting paddle at its outer edge for cooperating with a limiting part on the wall of the washing machine to switch the position of the valve plate.

3. The washing tub as claimed in claim 1, wherein the valve sheet stays at the position of the drain hole by centrifugal force for closing the drain hole.

4. The washing tub as claimed in claim 1, wherein the drain valve includes upper and lower cases, each case having a drain hole, and the valve plate is switched in a gap between the upper and lower drain holes to open or close the drain hole.

5. The washing tub as claimed in claim 1, wherein the center of gravity of the impeller, the fixed shaft of the valve sheet, and the valve sheet is aligned with each other by a centrifugal force.

6. A washing machine, characterized by comprising: the washing barrel comprises a motor, a motor clutch, a fixed barrel and the washing barrel as claimed in any one of claims 1 to 5, wherein a limiting part for switching the position of the valve plate is arranged on the barrel wall of the fixed barrel.

7. The washing machine as claimed in claim 6, wherein the limiting part is a telescopic structure, the outer edge of the valve plate is provided with a limiting shifting piece, the limiting part abuts against the limiting shifting piece when extending out of the fixed barrel wall, and the limiting part keeps a preset gap with the limiting shifting piece when being accommodated in the fixed barrel wall.

8. The washing machine as claimed in claim 6, wherein the position-limiting part is a magnetic element, and the position of the valve plate is switched by a magnetic adsorption between the position-limiting part and the valve plate.

9. A control method for controlling the washing machine according to any one of claims 6 to 8, characterized by comprising the steps of:

controlling the washing barrel to rotate, and sealing the drain hole by the valve plate under the action of centrifugal force;

the washing program is started.

10. The control method of claim 9, wherein the laundry program comprises: washing program, rinsing program and spin-drying program.