CN118241435A

CN118241435A - Washing machine and control method

Info

Publication number: CN118241435A
Application number: CN202211662228.8A
Authority: CN
Inventors: 钟江; 王得军; 徐鹏飞
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2024-06-25

Abstract

The present invention provides a washing machine, comprising: an inner barrel; the negative pressure component comprises a temporary storage cavity communicated with the inner barrel and an air pump arranged at the downstream of the temporary storage cavity; a filtering device is arranged between the air pump and the inner barrel. According to the invention, the filter device is arranged between the air pump and the inner barrel, so that sundries such as thread scraps in the air pumped from the inner barrel can be filtered out, the thread scraps are retained at the filter device, the cleaning of a user is facilitated, meanwhile, the thread scraps can be prevented from entering and blocking the air pump, the service life and the working stability of the negative pressure component are improved, and the use experience of the user is improved. The invention also provides a control method of the washing machine, when the water level in the temporary storage cavity rises to the preset water level, the water discharge valve is closed, the condition that the water in the temporary storage cavity is pumped into the air pump to damage the air pump can be prevented, and the air pump is arranged to reversely run, so that the water discharge speed in the temporary storage cavity can be increased, and the working efficiency of the washing machine is improved.

Description

Washing machine and control method

Technical Field

The invention belongs to the technical field of clothes treatment equipment, and particularly relates to a washing machine and a control method of the washing machine.

Background

The washing machine is a common household appliance for washing clothes, a washing barrel module of the washing machine is arranged in the machine body, and the washing of the clothes is realized through the rotation of the washing barrel module, so that a lot of convenience is provided for the daily life of people. The washing barrel module of the washing machine generally comprises an inner barrel and an outer barrel, wherein the bottom of the inner barrel is provided with a pulsator, and clothes and water in the inner barrel are stirred through rotation of the pulsator during washing, so that the aim of washing is fulfilled.

In the existing dehydration scheme of washing equipment, an inner barrel and a pulsator are adopted to synchronously rotate at a high speed, so that water on the washed objects is separated from the washed objects under the action of centrifugal force, and is discharged from a gap between the inner barrel and an outer barrel. However, the dehydration method is easy to generate large vibration and noise, especially when the washings are unevenly distributed in the inner tub, the high-speed rotation of the inner tub during dehydration can cause the washing machine to generate abnormal vibration, generate large noise and easily cause large damage to the washings.

In order to reduce vibration and noise during dehydration of a washing machine, some manufacturers produce a bag type vacuum squeeze dehydration device that places laundry in a bag, and sucks water and air therein using a negative pressure assembly to shrink the bag body, thereby squeezing out the water in the laundry.

However, since the filtering device cannot be arranged in the bag body, if the bag body is washed with larger thread scraps, the thread scraps can possibly enter the air pump after long-time use, so that the air pump cannot work. In addition, if foam exists in the washing water, the foam can be easily sucked into the air pump during dehydration, and the normal operation of the air pump is affected.

Therefore, designing a washing machine capable of preventing impurities such as thread scraps from entering an air pump becomes a technical problem to be solved urgently by those skilled in the art.

The present invention has been made in view of this.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the defects of the prior art and providing a washing machine, which can filter out sundries such as thread scraps in air pumped from an inner barrel by arranging a filter device between the air pump and the inner barrel, prevent the sundries from entering the air pump and solve the problems that the thread scraps of the prior washing machine easily enter the air pump and the air pump cannot work normally.

In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:

a washing machine, comprising:

An inner barrel;

the negative pressure component comprises a temporary storage cavity communicated with the inner barrel and an air pump arranged at the downstream of the temporary storage cavity;

A filtering device is arranged between the air pump and the inner barrel.

Further, the filtering device includes:

The first filtering device is arranged between the temporary storage cavity and the inner barrel and is used for filtering the thread scraps;

the second filtering device is arranged in the temporary storage cavity.

Further, the temporary storage cavity comprises a suction port communicated with the inner barrel, an exhaust port communicated with the air pump and a water outlet communicated with the drainage pipeline;

The exhaust port is arranged at the top of the temporary storage cavity, the water outlet is arranged at the bottom of the temporary storage cavity, and the suction port is arranged in the middle of the temporary storage cavity.

Further, the second filter device comprises a first filter screen arranged between the suction port and the exhaust port;

the first filter screen is arranged below the exhaust port and close to the exhaust port.

Further, the method further comprises the following steps:

the drain valve is arranged between the first filtering device and the inner barrel;

the water level sensor is arranged in the temporary storage cavity and is in communication connection with the drain valve and the air pump.

Further, the suction port is arranged below the first filter screen and close to the first filter screen;

the preset water level is arranged below the suction port and close to the suction port, or is flush with the suction port.

Further, the second filter device also comprises a second filter screen arranged between the suction port and the water outlet.

Further, the mesh aperture of the first filter screen is smaller than or equal to the mesh aperture of the second filter screen.

Further, the first filter device comprises a filter cavity and a filter element arranged in the filter cavity, and the mesh aperture of the filter element is larger than or equal to that of the second filter screen.

The invention also discloses a control method of the washing machine, which comprises the following steps:

The air pump operates to suck the water and air in the inner barrel;

When the water level in the temporary storage cavity rises to the preset water level, the drain valve is closed, and the air pump is closed or reversely operated.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:

1. According to the invention, the filter device is arranged between the air pump and the inner barrel, so that sundries such as thread scraps in the air pumped from the inner barrel can be filtered out, the sundries are prevented from entering the air pump, the service life and the working stability of the negative pressure component are prolonged, and the use experience of a user is improved.

2. According to the invention, when the water level in the temporary storage cavity rises to the preset water level, the drain valve is closed, and the air pump is closed or operated reversely, so that the condition that the water in the temporary storage cavity is pumped into the air pump to damage the air pump can be prevented, and the air pump is arranged to operate reversely, so that the water discharge speed in the temporary storage cavity can be increased, and the working efficiency of the washing machine is improved.

The inner barrel is made of soft materials, the negative pressure component is communicated with the inner barrel, when the inner barrel is dehydrated, water and air in the inner barrel can be pumped by the negative pressure component, the inner barrel is contracted, the inner barrel extrudes and dehydrates washings in the inner barrel, vibration and noise generated when the washing machine is dehydrated can be reduced, meanwhile, abrasion to the washings in the dehydration process of the washing machine can be reduced, and the use experience of a user is improved.

Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

Fig. 1 is a schematic view of a structure of a washing machine in an embodiment of the present invention;

FIG. 2 is a schematic view of a washing machine with a door opened according to an embodiment of the present invention;

Fig. 3 is an exploded view of a washing machine in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of a barrel module according to an embodiment of the present invention;

FIG. 5 is an axial cross-sectional schematic view of a bucket module in an embodiment of the invention;

FIG. 6 is an exploded view of a bucket module in an embodiment of the invention;

FIG. 7 is an axial cross-sectional view of the outer tub in an embodiment of the present invention;

FIG. 8 is an axial cross-sectional view of an inner tub in an embodiment of the invention;

FIG. 9 is an enlarged view of the portion A of FIG. 8 in accordance with an embodiment of the present invention;

FIG. 10 is an enlarged view of the portion B of FIG. 8 in accordance with an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a pulsator in an embodiment of the present invention;

FIG. 12 is a schematic view of the internal structure of a barrel module in a fifth embodiment of the present invention;

FIG. 13 is a diagram showing an internal system of a washing machine in which an overflow valve is provided in an embodiment of the present invention;

FIG. 14 is a diagram showing an internal system of a washing machine without an overflow valve according to an embodiment of the present invention;

FIG. 15 is a schematic view of a filtering device according to an embodiment of the present invention;

FIG. 16 is a diagram of a control method for the interconnection of an electromagnet with a door body in an embodiment of the present invention;

FIG. 17 is a diagram of a control method for interconnecting an electromagnet with a door lock according to one embodiment of the present invention;

fig. 18 is a diagram showing a control method of the interconnection of the electromagnet and the door lock according to another embodiment of the present invention.

The main elements in the figure are illustrated:

1. A body; 101. a housing; 102. a clothes putting port; 103. a door lock; 104. a water inlet pipeline; 1041. a water inlet valve; 105. an instant heating module; 106. a probe; 107. an air pipe; 1071. a vent valve; 108. an overflow pipe; 1081. an overflow valve; 109. a water receiving cavity; 110. a drainage pipeline; 111. a drain valve; 112. a positioning port; 2. a door body; 201. a first door body; 202. a second door body; 203. a blocking part; 204. a water inlet; 205. a vent; 3. an inner barrel; 301. an inner tub body; 302. a barrel bottom connecting piece; 3021. a first connector; 3022. a second connector; 3023. a clamping groove; 303. a bung hole positioning member; 3031. a planar portion; 3032. a positioning part; 3033. a connection part; 3034. a first positioning member; 3035. a second positioning member; 304. a protruding portion; 305. a water outlet of the inner barrel; 3061. a first extension; 3062. a second extension; 307. a mounting part; 3071. a first mounting portion; 3072. a second mounting portion; 3073. a third mounting portion; 309. a fold portion; 4. an outer tub; 401. a water outlet of the outer barrel; 5. a pulsator; 501. a pulsator main body; 502. a pulsator shaft; 503. a water-drawing rib; 504. a claw; 6. a magnet; 7. a negative pressure assembly; 701. a temporary storage cavity; 702. an air pump; 703. a first filtering device; 704. a second filtering device; 7041. a first filter screen; 7042. a second filter screen; 8. a motor shaft; 9. a muffler; 10. a magnetic member; 11. a fixed disk.

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

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1 to 9, in an embodiment of the present invention, a washing machine is described, including a housing 101, and a tub module is provided inside the housing 101.

The barrel module comprises an inner barrel 3 and an outer barrel 4, wherein the outer barrel 4 is fixedly arranged in the shell 101, the inner barrel 3 is a non-porous barrel, and the outer barrel 4 is detachably arranged. According to the invention, the inner barrel 3 and the outer barrel 4 are detachably connected, so that one washing machine can be provided with a plurality of inner barrels 3, and the inner barrels 3 can be conveniently replaced. In the use process of a user, one person can realize one barrel or one person can realize multiple barrels, the number of the inner barrels 3 can be configured according to the use requirement, classified washing is realized, the cross infection condition of different clothes can be prevented when different clothes are washed by the washing machine, meanwhile, a plurality of washing machines are not required to be configured, and the cost is saved.

In this embodiment, the outer tub 4 is installed in the inner space of the housing 101 by a tub supporter. Specifically, the barrel support includes the first support that is used for installing the ladle body of outer bucket 4 to and the second support that is used for carrying out the support to outer bucket 4, first support sets up the bung hole department at outer bucket 4, supports between outer bung hole and casing 101 inner wall, and the second support sets up between casing 101 bottom inner wall and outer barrel bottom.

The first support is plate-shaped and sleeved on the outer barrel wall and close to the outer barrel opening, the inner side of the first support is connected with the outer barrel wall, and the outer side of the first support is connected with the inner wall of the shell 101, so that the first support fixes the horizontal positions of the outer barrel 4 and the inner barrel 3. The second support is also plate-shaped, the second support is parallel to the first support, the second support is attached to the lower end face of the outer barrel, and the outer barrel 4 is supported at a preset position, so that the vertical position of the outer barrel 4 is fixed.

The lateral part of first support is provided with downwardly extending's first connecting plate, the upper end and the first support shaping of first connecting plate, the lower extreme and the second support of first connecting plate link to each other. The lateral part of second support is provided with the second connecting plate of downwardly extending, the upper end of second connecting plate and the lateral part shaping of second support, the lower extreme of second connecting plate supports with the diapire inboard of shell. Preferably, at least two opposite second connecting plates are arranged to ensure the stability of the supporting effect of the outer tub 4, and a chamber for installing the driving motor is formed between the second connecting plates and the bottom wall of the housing 101.

The driving motor is arranged below the second bracket, a motor shaft 8 of the driving motor penetrates through the second bracket and the outer barrel bottom to extend into the outer barrel 4, and an oil seal for sealing a shaft hole on the outer barrel bottom and a bearing for supporting the motor shaft 8 are arranged between the outer barrel bottom and the motor shaft 8.

Preferably, in this embodiment, the inner barrel 3 and the outer barrel 4 are magnetically connected.

Specifically, as shown in fig. 6 to 9, the inner barrel 3 includes an inner barrel main body 301, a magnet 6/magnetic element 10 is disposed on an outer wall of the inner barrel main body 301, a magnetic element 10/magnet 6 corresponding to the inner barrel is disposed on an inner wall of the outer barrel 4, when the inner barrel 3 is installed, the magnet 6/magnetic element 10 on the outer wall of the inner barrel is attracted with the magnetic element 10/magnet 6 on the inner wall of the outer barrel 4, so that a relative position between the inner barrel 3 and the outer barrel 4 is kept unchanged, the inner barrel 3 is installed, when the inner barrel 3 is disassembled, a user can take out the inner barrel 3 by overcoming an attraction force between the inner barrel 3 and the outer barrel 4, convenience and quickness in installation of the inner barrel 3 are ensured, and use experience of the user is improved.

In some possible embodiments, the inner barrel 3 and the outer barrel 4 are installed through the magnet 6 and the magnetic piece 10 which are attracted to each other, specifically, the magnetic piece 10 may be installed on the outer wall of the inner barrel 3, the magnet 6 may be installed on the inner wall of the outer barrel 4, the magnetic piece 10 may also be installed on the inner wall of the outer barrel 4, and the magnet 6 may be installed on the outer wall of the inner barrel 3, so that the attraction between the inner barrel 3 and the outer barrel 4 may be ensured.

In other possible embodiments, the inner barrel 3 and the outer barrel 4 are installed through two magnets 6, specifically, the magnets 6 comprise a first magnet 6 and a second magnet 6, the first magnet 6 is installed on the outer wall of the inner barrel 3, the second magnet 6 is installed on the inner wall of the outer barrel 4 at a position corresponding to the first magnet 6, and the opposite end surfaces of the first magnet 6 and the second magnet 6 are opposite in magnetism, so that mutual attraction between the inner barrel 3 and the outer barrel 4 is ensured.

In this embodiment, the magnet 6 is mounted on the outer wall of the inner tub 3, and the corresponding magnetic member 10 is mounted on the inner wall of the outer tub 4, and the specific structure of the inner tub 3 will be described, but this mounting method is not intended to limit the scope of the present invention.

In this embodiment, the inner barrel body 301 includes an inner barrel bottom and an inner barrel wall that are integrally formed, the inner barrel wall is free of holes, the magnet 6 is mounted on the outer side of the inner barrel bottom through the barrel bottom connecting piece 302, and the magnetic piece 10 is mounted on the outer barrel bottom at a position corresponding to the magnet 6.

Specifically, the barrel bottom connector 302 includes a first connector 3021 and a second connector 3022, the first connector 3021 is disposed inside the inner barrel bottom, the second connector 3022 is disposed outside the inner barrel bottom, the first connector 3021 and the second connector 3022 are connected by a screw, and the magnet 6 is embedded in a side of the second connector 3022 away from the inner barrel bottom.

In this embodiment, the first connecting piece 3021 and the second connecting piece 3022 are clamped on the inner side and the outer side of the inner barrel bottom, the magnet 6 is disposed on one side, away from the first connecting piece 3021, of the second connecting piece 3022, the first connecting piece 3021, the second connecting piece 3022, the magnet 6 and the inner barrel bottom are coaxially disposed, the inner barrel bottom, the second connecting piece 3022 and the magnet 6 are provided with mounting holes, the plurality of mounting holes are arranged along the circumferential direction of the inner barrel bottom, the mounting holes on the second connecting piece 3022, the magnet 6 and the inner barrel bottom are in one-to-one correspondence, a threaded hole in one-to-one correspondence with each mounting hole is disposed on one side, close to the inner barrel bottom, of the first connecting piece 3021, a rod portion of the screw sequentially penetrates through the mounting hole on the magnet 6, the mounting hole on the second connecting piece 3022 and the mounting hole on the inner barrel bottom from one side, and finally is connected in the threaded hole, and the second connecting piece 3022 and the inner barrel bottom are clamped between the first connecting piece 3021 and the head portion of the screw.

Preferably, the threaded hole extends from a side of the first connector 3021 near the inner tub bottom to the inside of the first connector 3021, and the threaded hole extends to a depth smaller than the thickness of the first connector 3021. Not only can the installation stability of the magnet 6 be ensured, but also the inner side of the inner barrel bottom can be ensured to have no screw hole, and the tightness is ensured.

Preferably, in this embodiment, a protruding portion 304 protruding toward the inside of the inner tub 3 is provided at the middle of the inner tub bottom, and the protruding portion 304 is coaxial with the inner tub bottom. The first connecting piece 3021 is provided with a first groove on one side near the inner bottom of the inner barrel, the first groove is fastened on the protruding portion 304, the protruding portion 304 is attached to the inner wall of the first groove, and the groove wall of the first groove is abutted to the inner bottom of the inner barrel around the protruding portion 304. The shape of the second connecting member 3022 is adapted to the shape of the side of the protruding portion 304 away from the first connecting member 3021, the second connecting member 3022 is embedded inside the protruding portion 304 from the outside of the inner barrel 3, and the outer wall of the second connecting member 3022 is attached to the inner wall of the protruding portion 304. The second connecting piece 3022 is provided with a second groove on one side far away from the first connecting piece 3021, the magnet 6 is arranged in a sheet shape, the shape of the sheet-shaped magnet 6 is matched with that of the second groove, and the magnet 6 is embedded in the second groove.

In this embodiment, the end surface of the second connecting piece 3022 and the magnet 6 away from the first connecting piece 3021 and the end surface of the inner barrel bottom away from the first connecting piece 3021 are coplanar, so that the inner barrel bottom and the outer barrel bottom can be guaranteed to be mutually attached, and the supporting effect of the outer barrel 4 on the inner barrel 3 can be guaranteed.

Preferably, in this embodiment, a groove for accommodating the head of the screw is provided at the end of the mounting hole on the magnet 6 away from the inner barrel bottom, so as to ensure the flatness of the inner barrel bottom.

In this embodiment, the outer tub bottom is provided with an outer tub drain 401 for connecting with the drain line 110 of the washing machine, and the bottom of the outer tub drain 401 protrudes downward and extends, at least partially penetrates through the second bracket, and is connected with the drain line 110 below the second bracket.

The inner barrel bottom is provided with an inner barrel water outlet 305, the caliber of the inner barrel water outlet 305 is the same as that of the outer barrel water outlet 401, and when the inner barrel 3 is installed, the inner barrel water outlet 305 is connected with the outer barrel water outlet 401, so that washing water in the inner barrel 3 can be directly discharged into the water discharge pipeline 110 through the inner barrel water outlet 305 and the outer barrel water outlet 401.

Preferably, the inner tub drain 305 is disposed within the coverage area of the tub bottom connection 302. Specifically, the inner tub bottom is provided with an inner tub drain 305, the first connector 3021 is provided with a first through hole corresponding to the inner tub drain 305, the second connector 3022 is provided with a second through hole corresponding to the inner tub drain 305, and the magnet 6 is provided with a third through hole corresponding to the inner tub drain 305.

The caliber of the first through hole is the same as that of the inner barrel drain outlet 305, the calibers of the first through hole, the second through hole and the third through hole are sequentially increased, a first extension part 3061 extending in a direction away from the first connecting piece 3021 is arranged at the inner barrel drain outlet 305, and the outer peripheral wall of the first extension part 3061 is attached to the inner wall of the second through hole; the end of the first extension 3061 is provided with a second extension 3062 expanding outwards in the radial direction, and the outer peripheral wall of the second extension 3062 is attached to the inner wall of the third through hole.

In some possible embodiments, at least the second extending portion 3062 is made of a soft material, a section of the second extending portion 3062 away from the first extending portion 3061 protrudes at least partially out of the third through hole, and during the installation of the inner tub 3, the magnet 6 is attracted to the magnetic member 10, and the magnet 6 compresses the second extending portion 3062 against the bottom of the outer tub to elastically deform, so as to seal the junction between the inner tub drain 305 and the outer tub drain 401, and prevent the washing water from leaking between the inner tub drain 305 and the outer tub drain 401.

In other possible embodiments, the end surface of the second extension 3062 is flush with the end of the third through hole on the magnet 6 away from the first connector 3021, and the end surface of the second extension 3062 away from the first extension 3061 is provided with a first sealing protrusion extending convexly outwards, and the first sealing protrusion is disposed around the inner tub drain opening 305.

In this embodiment, at least the first sealing protrusion is made of soft material, and when the inner bottom is attached to the outer bottom, the junction between the inner drain opening 305 and the outer drain opening 401 is sealed by the first sealing protrusion, so as to improve the sealing effect.

In this embodiment, the second extension 3062 may be made of a hard material, and the first sealing protrusion may be made of a soft material, so as to improve the squeezing effect on the first sealing protrusion when the inner tub bottom is connected to the outer tub bottom, and further improve the sealing property between the inner tub drain 305 and the outer tub drain 401.

Preferably, the first sealing protrusion may be provided in a plurality of turns.

Preferably, in this embodiment, the inner tub body 301 is made of a soft material, so that on one hand, the convenience of accommodating the inner tub 3 can be improved, and on the other hand, the sealing effect between the inner tub drain 305 and the outer tub drain 401 can be improved.

Preferably, in this embodiment, the magnetic member 10 is disposed outside the bottom of the outer tub. Specifically, as shown in fig. 5 to 7, in this embodiment, the magnetic members 10 are arranged in a plurality of uniformly arranged in the circumferential direction, and the outer side of the tub bottom is provided with a groove for accommodating the magnetic members 10, and the groove defines the water level position of the magnetic members 10. The bottom of the outer barrel is also provided with a fixed disc 11, the top of the fixed disc 11 is provided with a support column, the support column is abutted against the bottom of the magnetic piece 10 to compress the magnetic piece 10 in the groove, and the fixed disc 11 limits the axial position of the magnetic piece 10.

In this embodiment, the fixing plate 11 may be mounted with the outer tub 4 in any manner. Preferably, a threaded column is arranged on the outer barrel bottom, and the screw matched with the threaded column penetrates through the fixed disc 11 from the lower part of the fixed disc 11 and is arranged on the threaded column, so that the fixed disc 11 is tightly arranged on the outer barrel bottom.

Example two

As shown in fig. 1 and 2, in the embodiment of the present invention, a washing machine is described, including a machine body 1 and a door body 2, a tub module is disposed in the machine body 1, the door body 2 is disposed at the top of the machine body 1, one end of the door body 2 is connected to the machine body 1 through a hinge, and the other end of the door body 2 is connected to the machine body 1 through a door lock 103.

Preferably, in this embodiment, the inner barrel 3 and the outer barrel 4 are connected by electromagnetic ferromagnetic attraction.

Specifically, the inside of the outer barrel bottom is provided with an electromagnet, the outside of the inner barrel bottom is provided with a magnet 6 or a magnetic piece 10, the magnet 6 or the magnetic piece 10 of the inner barrel bottom is mounted on the outside of the inner barrel bottom through the barrel bottom connecting piece 302 in the first embodiment, the electromagnet is arranged on the outer barrel bottom at a position corresponding to the magnet 6 or the magnetic piece 10 on the inner barrel bottom, and preferably, the electromagnet is involved on the outer barrel bottom, so that the end face of the inner side of the outer barrel bottom is kept flat.

In this embodiment, the washing machine controls the on/off of the inner tub 3 and the outer tub 4 by controlling the on/off of the electromagnet, and when the user needs to replace the inner tub 3, the electromagnet can be powered off, so that the inner tub 3 is separated from the outer tub 4, thereby ensuring that the replacement process of the inner tub 3 is more labor-saving. When the user installs the inner tub 3 that changes in place, namely, when inner tub end and outer tub end laminating, can control the electro-magnet circular telegram, make inner tub end and outer tub end actuation, guarantee the stability of installation of inner tub 3, the leakproofness between inner tub 3 and the outer tub 4, and the stability of washing machine work effect.

Preferably, in this embodiment, the electromagnet is connected to the door body 2 of the washing machine in a communication manner, and the washing machine controls the power on/off of the electromagnet according to the state of the door body 2. Through the arrangement, when the door body 2 is opened/closed, the inner barrel 3 can be synchronously unlocked/locked, so that the inner barrel 3 is more convenient to replace, the efficiency of replacing the inner barrel 3 by a user can be improved, and the use experience of the user is improved.

In this embodiment, a door body 2 position sensor for detecting the position of the door body 2 is disposed between the door body 2 and the machine body 1, and the door body 2 position sensor is in communication connection with a control unit of the washing machine.

As shown in fig. 16, in this embodiment, there is also provided a control method of a washing machine, specifically including the steps of:

S1: acquiring the position of a door body 2;

s2: when the door body 2 is detected to be at the closed position, the electromagnet is controlled to be electrified, and the inner barrel 3 and the outer barrel 4 are attracted;

s3: when the door body 2 is detected to be in the open position, the electromagnet is controlled to be powered off, and the inner barrel 3 is separated from the outer barrel 4.

In this embodiment, the door body 2 position sensor acquires the position of the door body 2 in real time, and transmits the detection result to the control unit of the washing machine in real time, the control unit controls the electromagnet to be electrified/de-electrified according to the position of the door body 2, when the door body 2 is opened by a user, the electromagnet is automatically de-electrified, the inner barrel 3 is automatically separated from the inner barrel 3, the inner barrel 3 is convenient for the user to replace, when the door body 2 is detected to be closed, the user is indicated to control the washing machine to run, the user is proved to replace the inner barrel 3, or the user considers that the inner barrel 3 is not required to be replaced, at this time, the control unit controls the electromagnet to be electrified, and the inner barrel 3 and the outer barrel 4 are attracted to ensure the installation stability of the inner barrel 3 and the tightness between the inner barrel 3 and the outer barrel 4.

The door body 2 position sensor may be an angle sensor for detecting a rotation angle of the door body 2, or may be a sensing device for detecting whether the door body 2 is in a closed position. In the present embodiment, the sensing device for detecting whether the door 2 is in the closed position is installed between the door 2 and the body 1, but this implementation is not limited to the type of the door 2 position sensor actually used in the present invention.

In this embodiment, the induction device includes a reed pipe and a permanent magnet block that are mutually matched, the reed pipe is disposed on one of the machine body 1 and the door body 2, the permanent magnet block is disposed on the other of the machine body 1 and the door body 2, and the mounting positions of the reed pipe and the permanent magnet block correspond to each other.

In this embodiment, the reed switch may be disposed on the machine body 1 and in communication with the control unit of the washing machine, the permanent magnet is disposed on the door body 2 and at a position corresponding to the reed switch, the reed switch may sense the position of the permanent magnet, and transmit the sensing result to the control unit of the washing machine in real time, the control unit determines whether the door body 2 is in a closed state according to the detection result, if the door body 2 is detected to be in a closed state, the permanent magnet 6 is controlled to be electrified, and if the door body 2 is detected to be in an open state, the permanent magnet 6 is controlled to be powered off.

Preferably, in the present embodiment, the washing machine locks the door body 2 in a closed state by the door lock 103. Specifically, an elastic member for driving the door body 2 to open is arranged between the door body 2 and the machine body 1, and the elastic member can be a torsion spring which is arranged at the hinge and two ends of which are respectively in elastic abutment with the machine body 1 and the door body 2, and when the door body 2 is unlocked, the elasticity of the torsion spring is released to spring the door body 2 to a certain opening degree.

As shown in fig. 17 and 18, in the present embodiment, the washing machine may control the on/off of the electromagnet according to the state of the door lock 103. Specifically, the control method of the washing machine comprises the following steps:

S4: acquiring the state of the door lock 103;

s4.1: when the door lock 103 is detected to be locked, the electromagnet is electrified;

S4.2: when the unlocking of the door lock 103 is detected, the electromagnet is de-energized.

Preferably, in this embodiment, when the door lock 103 is in an open state and the user manually closes the door body 2, the door lock 103 is automatically locked. The washing machine is provided with a door lock 103 switch, and a user can control the door lock 103 to unlock by pressing the door lock 103 switch.

In this embodiment, by setting the door lock 103 to open and close, the user can unlock the door body 2 and the inner tub 3 simultaneously through the door lock 103, so that the structure and the control system of the washing machine are simplified, and the intelligent degree of the washing machine is improved.

In some possible embodiments, the user may press the door lock 103 to open and close in different ways, selectively controlling the door lock 103 to unlock, or controlling the door lock 103 to unlock simultaneously with the electromagnet. Specifically, the control method further comprises the following steps:

s5: acquiring a mode of pressing a door lock 103 to open and close by a user;

s5.1: when the user presses the door lock 103 to open and close for a single time, the door lock 103 is unlocked, and the electromagnet is kept electrified;

s5.2: when the user presses the door lock 103 switch twice in succession, the door lock 103 is unlocked and the electromagnet is powered off.

In this embodiment, the user can selectively control the unlocking of the door lock 103 by controlling the way of pressing the door lock 103 to open or close, or control the door lock 103 and the inner barrel 3 to be synchronously unlocked.

Specifically, as shown in fig. 17, when the door body 2 is in the closed state, the door lock 103 is in the locked state, at this time, if the user presses the door lock 103 to open or close, only the door lock 103 is unlocked, the electromagnet still keeps the energized state, the inner tub 3 and the outer tub 4 keep engaged, and if the user continuously presses the door lock 103 to open or close twice, the door lock 103 is unlocked, and at the same time, the electromagnet is de-energized, and the inner tub 3 and the outer tub 4 are separated.

In this embodiment, when the door body 2 is in an open state and the inner barrel 3 is in a locked state, the user can still continuously press the door lock 103 to switch off the electromagnet by twice, so that the user can take out the inner barrel 3 from the outer barrel 4 at any time, and the use experience of the user is improved.

Preferably, in this embodiment, the control method of the washing machine may further include the steps of:

s5.3: when the user presses the door lock 103 switch three times in succession, the door lock 103 remains locked and the electromagnet is de-energized.

Through the arrangement, when the washing machine is in a standby state, a user can power off the electromagnet by operating the door lock 103 switch, so that the energy saving performance of the washing machine is improved.

In other possible embodiments, as shown in fig. 18, the user may selectively control the unlocking of the door lock 103 by pressing the duration of the door lock 103 switch, or control the unlocking of the door lock 103 simultaneously with the electromagnet. Specifically, the control method may further include the following steps:

S6: acquiring the time length for a user to press the door lock 103 to open and close;

s6.1: when the time for which the user presses the door lock 103 to open and close is less than the first preset time, the door lock 103 is unlocked, and the electromagnet is kept electrified;

s6.2: when the time for which the user presses the door lock 103 to open or close is longer than or equal to the first preset time and shorter than the second preset time, the door lock 103 is unlocked, and the electromagnet is powered off.

Specifically, the preset duration may be set to 3 seconds. That is, when the door body 2 is in the closed state, the door lock 103 is in the locked state, the electromagnet is in the energized state, and the inner tub 3 is attracted to the outer tub 4. At this time, if the user presses the door lock 103 to open and close and keeps the pressing operation for less than 3 seconds, only the door lock 103 is unlocked, the electromagnet still keeps the electrified state, the inner tub 3 and the outer tub 4 keep the attraction, and if the user presses the door lock 103 to open and close and keeps the pressing operation for 3 seconds, the door lock 103 is unlocked, and meanwhile the electromagnet is powered off, and the inner tub 3 and the outer tub 4 are separated.

In this embodiment, when the door body 2 is in an open state and the inner barrel 3 is in a locked state, the user can still turn off the electromagnet by pressing the door lock 103 to open and close and keeping the pressing action for more than 3 seconds, so that the user can take out the inner barrel 3 from the outer barrel 4 at any time, and the use experience of the user is improved.

s6.3: when the time for which the user presses the door lock 103 to open and close is longer than the second preset time, the door lock 103 is kept locked, and the electromagnet is powered off.

Preferably, in this embodiment, when the door body 2 is opened and the electromagnet is powered on, the control unit starts timing, and if the time for keeping the door body 2 open and the electromagnet in the powered on state reaches the preset time, the control unit controls the electromagnet to be powered off, so that the energy saving effect of the washing machine can be improved.

That is, after the door lock 103 is unlocked and the electromagnet is kept energized by a single pressing of the door lock 103/a short pressing of the door lock 103, if the washing machine is not operated (including pressing of the door lock 103, opening and closing of the door body 2, and inputting of a control command), the electromagnet is automatically de-energized after a preset time, thereby making the washing machine more power-saving.

Preferably, in order to improve energy saving performance of the washing machine, in this embodiment, the control method of the washing machine further includes the following steps:

S7: when the washing machine is in a standby state, a mode that a user presses the door lock 103 to open and close is obtained, and/or a time length that the user presses the door lock 103 to open and close is obtained, and/or the control unit starts timing;

S7.1: if the user continuously presses the door lock 103 to open and close for two times/three times, and/or the time period of the user pressing the door lock 103 to open and close is longer than or equal to the first preset time period, and/or the time period of the washing machine entering the standby state reaches the preset time period, the electromagnet is powered off;

S8: when a user inputs a cleaning instruction to the washing machine, the position of the door body 2 and the electrifying condition of the electromagnet are obtained;

S8.1: if the door body 2 is opened, prompting a user to close the door body 2; if the door body 2 is closed and the electromagnet is powered off, the control unit directly controls the electromagnet to be powered on.

In this embodiment, the door lock 103 switch may be integrated on a control panel of the washing machine; or the door lock 103 is opened and closed by mechanical keys which are independently arranged and are embedded on the door body 2/the machine body 1.

Example III

As shown in fig. 8 and 9, in this embodiment, an inner tub 3 of a washing machine is described, which includes an inner tub body 301, the inner tub body 301 includes an inner tub bottom and an inner tub wall that are integrally formed, an impeller 5 is disposed on the inner tub bottom of the inner tub 3, and a motor shaft 8 of the washing machine is in transmission connection with the impeller 5 to drive the impeller 5 to rotate for washing clothes in the inner tub 3.

In this embodiment, the pulsator 5 is mounted on the inner barrel bottom of the inner barrel body 301 through a fastening structure, and is in axial limit fit with the inner barrel bottom. The user can dismantle, change impeller 5 in the use to, can dispose the impeller 5 of multiple form for a washing machine, with the variety that satisfies the clothing that waits to wash, the user only needs to purchase a washing machine can wash all kinds clothing, has improved the utilization ratio of resource, has reduced user's washing cost.

As shown in fig. 11, the pulsator 5 includes a pulsator shaft 502 and water-repellent ribs 503 disposed on the pulsator shaft 502, the water-repellent ribs 503 are disposed protruding outwards from an outer wall of the pulsator shaft 502, a plurality of water-repellent ribs 503 are uniformly arranged along a circumferential direction of the pulsator shaft 502, and the fastening structure is disposed between a bottom of the pulsator shaft 502 and an inner tub bottom.

The fastening structure comprises a claw 504 and a fastening groove 3023 which are matched with each other, the claw 504 comprises a neck part extending downwards from the bottom of the impeller shaft 502 of the impeller 5, and a fastening protrusion extending outwards from the end of the neck part along the radial direction of the impeller shaft 502, namely from the end of the neck part far away from the impeller shaft 502; the clamping groove 3023 is arranged on the bottom of the inner barrel and comprises a groove bottom, a groove wall and a clamping part arranged at the notch of the clamping groove 3023, and the clamping claw 504 is clamped between the groove bottom and the clamping part through a clamping convex.

In this embodiment, the number of the claws 504 is at least two, at least two claws 504 are uniformly arranged along the circumferential direction of the impeller shaft 502, the neck portion of the claw 504 is slidably engaged with the inner wall of the clamping portion, and/or the clamping protrusion is slidably engaged with the inner wall of the clamping groove 3023.

Preferably, four claws 504 are provided, the four claws 504 are uniformly arranged along the circumferential direction of the pulsator shaft 502, and the four claws 504 are identical in size.

Further preferably, the neck portion of the claw 504 is configured as an arc shape adapted to the shape of the inner wall of the clamping portion, and the clamping protrusion is configured as an arc shape adapted to the inner wall of the clamping groove 3023.

Specifically, the inner bottom is provided with a bottom connecting member 302, where the bottom connecting member 302 may be the bottom connecting member 302 in the first embodiment, and the bottom connecting member includes a first connecting member 3021 and a second connecting member 3022 disposed on the inner side and the outer side of the inner bottom, and at least a portion of the inner bottom is sandwiched between the first connecting member 3021 and the second connecting member 3022, and the clamping groove 3023 is coaxially disposed on the bottom connecting member 302 of the inner bottom.

The first connecting piece 3021 and the second connecting piece 3022 are respectively attached to the inner side and the outer side of the inner barrel bottom, the middle part of the inner barrel bottom and the middle part of the first connecting piece 3021 are provided with notches coaxial with the inner barrel bottom, the top of the notches, namely the inner walls of the notches on the first connecting piece 3021 extend upwards, the middle part of the second connecting piece 3022 and the parts corresponding to the notches form the bottom of the clamping groove 3023, and the notches on the inner barrel bottom and the inner walls of the notches on the first connecting piece 3021 form the groove walls of the clamping groove 3023.

The clamping part is arranged at the top of the notch and extends from the top of the notch of the clamping groove 3023 to the inside of the notch along the radial direction, the middle part of the clamping part is provided with a clamping port coaxial with the bottom of the inner barrel, and the clamping claw 504 is clamped in the clamping groove 3023 through the clamping port.

In this embodiment, during the installation of the pulsator 5, the claw 504 on the pulsator 5 is abutted to the clamping interface and pressed downward, so that the claw 504 generates elastic deformation inclined to the axial direction of the pulsator shaft 502, and thus the clamping protrusion is clamped into the clamping groove 3023, and after the clamping protrusion enters the clamping groove 3023, the claw 504 rebounds, so that the clamping protrusion is clamped between the clamping part and the bottom of the clamping groove 3023.

Preferably, the thickness of the clamping protrusion is adapted to the distance between the clamping portion and the bottom of the clamping groove 3023. When the convex clamping part is clamped between the clamping part and the groove bottom, the top surface of the convex clamping part is in sliding fit with the bottom surface of the clamping part, and the bottom surface of the convex clamping part is in sliding fit with the top surface of the second connecting piece 3022.

Preferably, in this embodiment, the diameters of the circumferences of the sides of the necks of the four claws 504 away from the axle center of the impeller shaft 502 are adapted to the diameters of the clamping interfaces, and the diameters of the circumferences of the sides of the four claws 504 away from the axle center of the impeller shaft 502 are adapted to the inner diameters of the clamping grooves 3023. Therefore, after the pulsator 5 is mounted, the neck portion of the claw 504 is slidably engaged with the inner wall of the clamping portion, and meanwhile, the clamping protrusion is slidably engaged with the inner wall of the clamping groove 3023, so as to guide the rotation of the pulsator 5, and improve the working stability of the pulsator 5.

Preferably, in this embodiment, the bottom of the latch is provided with a slope inclined from top to bottom towards the direction close to the axis of the pulsator shaft 502, and the distance between the bottom of the slope and the axis of the pulsator shaft 502 is smaller than the distance between the inner wall of the clamping part and the axis of the clamping part, that is, the diameter of the circumference of the bottom of the latch and the side away from the axis of the pulsator shaft 502 is gradually reduced from top to bottom, and the diameter of the circumference of the bottom of the latch and the side away from the axis of the pulsator shaft 502 is smaller than the inner diameter of the clip interface, so that during the installation of the pulsator 5, at least part of the latch extends into the clip interface, and when the pulsator 5 is continuously pressed downwards, the claw 504 is deformed near the side of the axis of the pulsator shaft 502 under the contact of the slope, thereby improving the positioning effect and the guiding performance of the pulsator 5 during the installation process, facilitating the installation of the pulsator 5, and improving the use experience of the user.

Preferably, the distance between the top end of the inclined surface of the bottom of the clamping protrusion and the second connecting piece 3022 is greater than or equal to the thickness of the inner barrel bottom, that is, the axial distance between the upper end and the lower end of the inclined surface is greater than or equal to the thickness of the inner barrel bottom, so that one side of the clamping protrusion far away from the axis of the impeller shaft 502 is only in sliding fit with the inner wall of the notch on the first connecting piece 3021, but not in contact with the inner wall of the notch on the inner barrel bottom, on one hand, the abrasion of the impeller 5 to the inner barrel 3 can be reduced, on the other hand, the friction between the inner barrel 3 and the impeller 5 can be reduced, and the rotation of the impeller 5 is smoother.

In this embodiment, a second sealing protrusion is disposed on a side of the inner tub bottom near the second connector 3022, where the second sealing protrusion is disposed around the notch, and the second sealing protrusion may be disposed in multiple circles. The second sealing protrusion may be provided to be made of a soft material, and/or the inner tub bottom is made of a soft material, and/or the inner tub body 301 is made of a soft material.

In the process of installing the barrel bottom connecting piece 302, the inner barrel bottom is elastically abutted with the second connecting piece 3022 through the second sealing protruding part, so that the sealing effect between the inner barrel bottom and the second connecting piece 3022 can be improved, and washing water is prevented from leaking out of the inner barrel 3 from the clamping groove 3023.

In this embodiment, there is also provided a washing machine including a housing 101 and a tub module installed in the housing 101, the tub module including an inner tub 3 and an outer tub 4, the inner tub 3 being detachably installed in the outer tub 4 through a magnetic structure, and a pulsator 5 being detachably installed in the inner tub 3 through a snap structure.

The inner barrel 3 is arranged in the outer barrel 4, and a motor shaft 8 of the driving motor penetrates through the bottom of the outer barrel and at least partially extends into the outer barrel 4. In the installation process of the inner barrel 3, the bottom of the inner barrel is attached to the bottom of the outer barrel, and the motor shaft 8 is at least partially inserted into the inner barrel 3 and is in transmission connection with the pulsator 5 in the inner barrel 3.

Specifically, the bottom of the washing machine is provided with a driving motor for driving the pulsator 5 to rotate, a motor shaft 8 of the driving motor penetrates through the outer barrel bottom and extends into the outer barrel 4, and a bearing for supporting the motor shaft 8 and an oil seal for sealing a shaft hole on the outer barrel bottom are arranged between the motor shaft 8 and the outer barrel bottom. The bottom of the inner barrel is provided with a shaft hole through which a motor shaft 8 passes, the motor shaft 8 passes through the shaft hole to be in transmission connection with a pulsator shaft 502 of the pulsator 5, and the motor shaft 8 rotates to drive the pulsator 5 to rotate, so that water and clothes in the inner barrel 3 are stirred, and the aim of washing is fulfilled.

In this embodiment, the inner tub 3 and the outer tub 4 are magnetically connected, the tub bottom connector 302 on the inner tub bottom is embedded with the magnet 6/magnetic member 10 described in the first and second embodiments, and the magnet 6/magnetic member 10 is disposed in the second groove on the side of the second connector 3022 away from the inner tub bottom.

The shaft hole is coaxially formed in the second connecting piece 3022, a fourth through hole corresponding to the shaft hole is formed in the middle of the magnet 6/magnetic piece 10, the caliber of the fourth through hole is larger than that of the shaft hole, a third extension portion protruding and extending towards a direction away from the inner barrel 3 is arranged on the second connecting piece 3022 around the shaft hole, and the peripheral wall of the third extension portion is attached to the inner wall of the fourth through hole.

Preferably, in this embodiment, the third extension portion elastically abuts against the oil seal between the outer barrel bottom and the motor shaft 8 under the suction action between the inner barrel bottom and the outer barrel bottom, so as to ensure the tightness of the shaft hole.

That is, the end of the third extension part protrudes at least partially from the end surface of the magnet 6 away from the bottom side of the inner barrel, the outer diameter of the third extension part is matched with the inner diameter of the shaft hole on the bottom of the outer barrel, and the end of the third extension part extends at least partially into the shaft hole on the bottom of the outer barrel and is abutted against the oil seal between the bottom of the outer barrel and the motor shaft 8.

Through above-mentioned setting, on the one hand, can improve the accuracy of interior bucket 3 mounted position, improve interior bucket 3's location effect, on the other hand, can improve the sealed effect to the shaft hole in interior bucket bottom, prevent that the washing water in interior bucket 3 from leaking to the condition emergence between outer bucket 4 and the interior bucket 3.

In this embodiment, the motor shaft 8 is connected to the pulsator shaft 502 by a key. Specifically, a first spline is disposed on the motor shaft 8, a second spline corresponding to the first spline is disposed on the pulsator shaft 502, and when the inner tub 3 is installed in the outer tub 4, teeth of the first spline and teeth of the second spline are meshed with each other, so that the pulsator shaft 502 can rotate synchronously with the motor shaft 8, and the driving motor drives the pulsator 5 to rotate to wash clothes in the inner tub 3.

Preferably, in this embodiment, the second spline is embedded in the impeller shaft 502, the tooth portion of the second spline faces downward, the first spline is sleeved on the motor shaft 8, the tooth portion of the first spline faces upward, and the diameter of the end portion of the motor shaft 8 is adapted to the inner diameter of the second spline. When the inner barrel 3 is installed, the end part of the motor shaft 8 is inserted into the second spline, and the tooth part of the first spline sleeved on the periphery of the motor shaft 8 is meshed with the tooth part of the second spline embedded in the impeller shaft 502.

In this embodiment, the outer peripheral wall of the first spline is slidably engaged with the inner wall of the pulsator shaft 502, and the outer peripheral wall of the end of the motor shaft 8 is slidably engaged with the inner wall of the second spline.

In this embodiment, the washing machine may be configured with a plurality of inner barrels 3, or may be configured with a plurality of pulsators 5 with different structures for each inner barrel 3, and when different kinds of clothes need to be washed, the pulsators 5 on the inner barrels 3 may be manually detached, and then the pulsators 5 corresponding to the clothes to be washed may be mounted on the inner barrels 3.

Preferably, in this embodiment, each user may configure a plurality of inner drums 3 for washing different laundry, and one or more pulsators 5 may be configured for each inner drum 3. For example, two inner tub 3 may be provided for each user, one inner tub 3 for washing small laundry such as underwear and the other inner tub 3 for washing other laundry. Meanwhile, the inner barrel 3 for washing small clothes is provided with one pulsator 5 capable of realizing small clothes washing, and a plurality of pulsators 5 are arranged for washing other clothes, so that the inner barrel 3 can realize various functions of washing the outer clothes, washing shoes and the like, and a user can replace the pulsators 5 with different structures according to the types, the quantity and the materials of the clothes to be washed.

Preferably, in this embodiment, when the user changes the pulsator 5 on the inner tub 3, the inner tub 3 may be removed or may be directly changed.

Preferably, in this embodiment, the inner barrel 3 may be made of soft material, so that the user can replace the pulsator 5 conveniently, the replacement efficiency of the user to the pulsator 5 is further improved, and the use experience of the user is improved.

Example IV

As shown in fig. 1 to 10, in an embodiment of the present invention, a washing machine is described, including a casing 101, a laundry inlet 102 is provided at the top of the casing 101, an inner tub 3 is installed inside the casing 101, the inner tub 3 is a non-porous tub, and the inner tub 3 is detachably installed inside the casing 101.

The invention can be detachably arranged in the shell 101 by arranging the inner barrels 3, so that one washing machine can be provided with a plurality of inner barrels 3, and the inner barrels 3 can be conveniently replaced. In the use process of a user, one person can realize one barrel or one person can realize multiple barrels, the number of the inner barrels 3 can be configured according to the use requirement, classified washing is realized, the cross infection condition of different clothes can be prevented when different clothes are washed by the washing machine, meanwhile, a plurality of washing machines are not required to be configured, and the cost is saved.

In this embodiment, the inner tub 3 is detachably mounted in the casing 101 of the washing machine, and a positioning structure is disposed between the inner tub 3 and the casing 101.

Specifically, the inner barrel 3 includes an inner barrel body 301, the inner barrel body 301 includes an integrally formed inner barrel wall and an inner barrel bottom, the inner barrel bottom is arranged at the bottom of the inner barrel body 301, an inner barrel opening is formed in the top of the inner barrel body 301, a barrel opening positioning member 303 is arranged on the outer wall of the inner barrel body 301 and near the inner barrel opening, a positioning structure is arranged between the barrel opening positioning member 303 and the shell 101, and the barrel opening positioning member 303 is mutually matched with the shell 101 to limit the installation position of the inner barrel 3.

In this embodiment, a laundry inlet 102 is provided at the top of the housing 101, an inner space of the housing 101 is adapted to a shape of the inner tub 3, and the inner tub 3 is installed in the housing 101 from the laundry inlet 102.

The bung hole locator 303 is annular, the periphery of the bung hole locator 303 at least partially protrudes from the periphery of the inner barrel wall, and a plane portion 3031 is arranged on at least one side of the periphery wall of the bung hole locator 303. The middle part of the clothes putting port 102 is provided with a positioning port 112, and the barrel port positioning piece 303 is embedded in the positioning port 112, so that the inner barrel 3 can be accurately installed in the shell 101 at a preset installation angle.

In this embodiment, the outer tub 4 may be disposed in the inner space of the housing 101, or the outer tub 4 may not be disposed. When the outer tub 4 is not provided in the casing 101, the positioning opening 112 is provided in a groove shape, and when the inner tub 3 is mounted, the groove wall of the positioning opening 112 is fitted with the peripheral wall of the tub opening positioning member 303 to define the circumferential position of the inner tub 3, and the groove bottom of the positioning opening 112 is fitted with the bottom surface of the tub opening positioning member 303 to define the axial position of the inner tub 3. When the outer barrel 4 is arranged in the shell 101, the outer barrel 4 is embedded in the shell 101 below the positioning opening 112, the outer barrel 4 and the positioning opening 112 are coaxially arranged, the inner diameter of the outer barrel 4 is matched with the outer diameter of the inner barrel 3, the shape of the positioning opening 112 is matched with the shape of the barrel opening positioning piece 303, and the bottom of the barrel opening positioning piece 303 is abutted against the outer barrel opening. Thus, by providing the bung hole positioning member 303, not only the circumferential positioning of the inner barrel 3, but also the axial positioning of the inner barrel 3 can be achieved.

Preferably, in this embodiment, the inner barrel 3 and the outer barrel 4 may be connected by a magnetic attraction structure in the first embodiment or the second embodiment, or may be connected by any detachable mounting manner such as a bolt, a buckle, or the like.

In this embodiment, the bung hole positioning member 303 may be integrally formed with the inner barrel body 301, or may be provided as a separate component, and be separately mounted on the inner barrel body 301.

As shown in fig. 10, in this embodiment, the bung hole positioning member 303 includes a first positioning member 3034 and a second positioning member 3035 that are fastened to each other, and an inner bung wall at the inner bung hole is at least partially sandwiched between the first positioning member 3034 and the second positioning member 3035.

Specifically, the outer wall of the inner tub 3 is provided with a mounting portion 307 for mounting the tub mouth positioning member 303, the mounting portion 307 is disposed at the outer side of the inner tub wall and near the inner tub mouth, the mounting portion 307 extends along the circumferential direction of the inner tub wall, and the tub mouth positioning member 303 is at least partially coated on the mounting portion 307.

The mounting portion 307 includes a first mounting portion 3071 and a second mounting portion 3072 integrally formed with the inner tub wall, the first mounting portion 3071 protrudes from the outer side of the inner tub wall and near the inner tub opening to the outer side of the inner tub 3, and the second mounting portion 3072 extends from the end portion of the first mounting portion 3071 to the upper and lower sides of the first mounting portion 3071, that is, the radial section of the mounting portion 307 is T-shaped, and the tub opening positioning member 303 is coated on the second mounting portion 3072.

In this embodiment, the bung hole positioner 303 includes a positioning portion 3032 and a connection portion 3033, the positioning portion 3032 is disposed on the outer periphery of the connection portion 3033, and the positioning portion 3032 and the connection portion 3033 are formed by buckling a first positioner 3034 and a second positioner 3035.

The first connector 3021 and the second connector 3022 may be connected to each other by any connection means such as a buckle, a screw, a thread, a bolt, etc., the connection structure between the first connector 3021 and the second connector 3022 is disposed at the positioning portion 3032, the radial cross section of the mounting portion 307 is rectangular, the planar portion 3031 is disposed at one side of the positioning portion 3032, and the radial cross section width at the planar portion 3031 is gradually reduced and then gradually increased.

The connection portion 3033 is disposed on an inner periphery of the positioning portion 3032, an outer periphery of the connection portion 3033 is connected to an inner periphery of the positioning portion 3032, an inner shape of the connection portion 3033 is adapted to a shape of the mounting portion 307, the positioning portion 3032 is wrapped around the second mounting portion 3072, and the inner periphery of the connection portion 3033 is sandwiched between the first mounting portion 3071.

In this embodiment, the inner diameter of the first positioning member 3034 is smaller than the inner diameter of the second positioning member 3035, and the inner Zhou Dingbu of the second positioning member 3035 is matched with the bottom shape of the first mounting portion 3071.

The top of the first mounting portion 3071 is provided with a third mounting portion 3073, the third mounting portion 3073 is disposed between the inner barrel opening and the second mounting portion 3072, and the inner periphery of the first positioning member 3034 is sandwiched between the second mounting portion 3072 and the third mounting portion 3073. Through the above arrangement, the mounting structure of the bung hole positioning member 303 can be made more stable.

And/or the inner bung expands outwards from bottom to top, and the edge of the inner bung is abutted against the inner wall of the bung positioning member 303 and is in smooth transition.

Specifically, the first positioning member 3034 is disposed on the upper side of the mounting portion 307, the second positioning member 3035 is disposed on the lower side of the mounting portion 307, and at least the inner wall of the first positioning member 3034 is configured as a circular table surface expanding from bottom to top.

Preferably, in this embodiment, the taper of the inner bung is greater than the taper of the first positioning member 3034.

Preferably, in this embodiment, the first mounting portion 3071 is configured to incline from outside to inside, the second mounting portion 3072 is vertically configured, and the inner bottom of the first positioning member 3034 and the inner Zhou Dingbu of the second connecting member 3022 are respectively attached to the upper and lower side surfaces of the first mounting portion 3071. Through the above arrangement, the mounting structure of the bung hole positioning member 303 can be made more stable.

Preferably, in this embodiment, the mounting portion 307 includes a first mounting portion 3071, a second mounting portion 3072, and a third mounting portion 3073, the third mounting portion 3073 is parallel to the second mounting portion 3072, and the inner periphery of the first positioning member 3034 is sandwiched between the third mounting portion 3073 and the second mounting portion 3072. The inner bung hole expands outwards from bottom to top, and the top of the inner bung hole is abutted against the inner side of the third mounting portion 3073, or the top of the inner bung hole is abutted against the inner side wall of the connecting portion 3033 above the third mounting portion 3073.

In this embodiment, the washing machine further includes a door body 2, the door body 2 of the washing machine is connected with the casing 101 through a hinge, the hinge is disposed between the rear end of the door body 2 and the casing 101, and the front end of the door body 2 can be turned over through the hinge.

Preferably, the flat portion 3031 of the bung hole locator 303 is disposed at the rear side, and the flat portion 3031 of the bung hole locator 303 corresponds to the hinge when the inner barrel 3 is mounted.

In this embodiment, the door body 2 may be mounted on the housing 101 or on the tub stand.

Preferably, the door body 2 is mounted on a barrel support in the casing 101 through a hinge, specifically, the barrel support is set between the first fixing parts for fixing the horizontal position of the outer barrel 4 and the second fixing parts for fixing the vertical position of the outer barrel 4 as in the first embodiment, the first fixing parts are plate-shaped and sleeved outside the outer barrel opening, a hinge seat of the hinge is mounted above the first fixing parts, and the top of the hinge seat at least partially extends out of the casing 101 and is connected with the hinge body on the door body 2.

In this embodiment, the barrel support sets up to the metalwork, through with hinged joint on the barrel support that the metal was made, can improve the installation strength of door body 2, improve the installation stability of door body 2 and washing machine's life.

Preferably, in this embodiment, when the inner tub 3 is mounted, the bottom of the tub opening positioning member 303 abuts against the first bracket.

In this embodiment, the laundry inlet 102 is disposed at the top of the casing 101 and is formed by recessing inwards from the top of the casing 101, the positioning opening 112 is disposed in the middle of the laundry inlet 102, the depth of the positioning opening 112 is the same as the thickness of the bung hole positioning member 303, the bung hole positioning member 303 is completely embedded in the positioning opening 112, and after the inner tub 3 is mounted, a smooth transition is formed between the top edge of the bung hole positioning member 303 and the inner wall of the laundry inlet 102.

Preferably, in this embodiment, the bottom shape of the door body 2 is adapted to the shape of the laundry inlet 102, and when the door body 2 is closed, the bottom of the door body 2 is attached to the inner wall of the laundry inlet 102, so as to compress the tub opening positioning member 303 in the positioning opening 112.

Preferably, in this embodiment, a blocking portion 203 protruding downward is provided at the bottom of the door body 2, and the shape of the blocking portion 203 is adapted to the shape of the inner wall of the bung hole positioning member 303, and when the door body 2 is closed, the blocking portion 203 extends at least partially into the inner bung hole, so as to block the inner bung hole when the door body 2 is closed. The door body 2 at the periphery of the blocking part 203 is embedded in the clothes putting opening 102 and is attached to the inner wall of the clothes putting opening 102.

Through set up shutoff portion 203 in door body 2 bottom, can block up interior bung hole when making door body 2 close, can improve door body 2 to interior barrel 3's sealed effect, improve interior barrel 3's seal, prevent that the washing water in the interior barrel 3 from leaking, improve user's use experience.

Preferably, in this embodiment, the door body 2 has a hollow structure, including a first door body 201 and a second door body 202 that are fastened to each other, the first door body 201 is disposed on a side close to the housing 101, the blocking portion 203 is disposed in the middle of the first door body 201, and is hinged to the rear end of the first door body 201, and the second door body 202 is fastened to the top of the first door body 201.

In this embodiment, the plugging portion 203 of the first door 201 is provided with a water inlet 204, and the water inlet pipe 104 of the washing machine extends to the inside of the door 2 through the hinge and is connected to the water inlet 204 to supply water to the inner tub 3.

In this embodiment, the matching structure of the water inlet pipe 104 and the hinge may be any matching structure in the prior art. Preferably, the water inlet pipeline 104 includes a first water inlet pipeline 104 and a second water inlet pipeline 104, one end of the first water inlet pipeline 104 is connected with a water source, the other end of the first water inlet pipeline 104 is clamped on the hinge seat, one end of the second water inlet pipeline 104 is connected with the water inlet 204, the other end of the second water inlet pipeline 104 is clamped on the hinge body, when the door body 2 is opened, the first pipeline is separated from the second pipeline, and when the door body 2 is closed, the first pipeline is connected with the second pipeline.

It is further preferable that the first pipe and the second pipe are separated when the door body 2 is opened, and at the same time, a port of the first pipe is abutted against the hinge body to seal the first pipe.

Of course, the water inlet pipe 104 may be a complete hose, one end of the water inlet pipe 104 is connected to the water source, the other end of the water inlet pipe 104 extends to the inside of the door body 2 through the hinge, and the water inlet pipe 104 is provided with a margin for the normal overturning of the hinge at the hinge.

Example five

As shown in fig. 11, in the present embodiment, a pulsator 5 is described, the pulsator 5 is installed at the bottom of the inner tub, and a motor shaft 8 of the washing machine drives the pulsator 5 to rotate to agitate water and laundry in the inner tub 3, thereby achieving the purpose of washing.

In this embodiment, impeller 5 includes impeller main part 501, impeller main part 501 sets up to spherically, on the one hand, can make the top of impeller 5 extend to the position of more top, improves the stirring effect of impeller 5 to water and clothing on the basis that does not influence interior bucket 3 volumetric, on the other hand, can reduce the laminating area of impeller 5 bottom surface and interior bucket bottom inboard, reduces the dirt residue between the bucket bottom in the impeller 5, can improve washing machine's washing effect, can avoid cross infection again, improves washing machine's security, has improved user's use experience.

Specifically, the pulsator body 501 includes a pulsator shaft 502, and a water-repellent rib 503 disposed on a peripheral wall of the pulsator shaft 502, the water-repellent rib 503 protrudes from an outer wall of the pulsator shaft 502, and the water-repellent rib 503 extends along an axial direction of the pulsator shaft 502. The pulsator shaft 502 rotates to drive the water-drawing rib 503 thereon to rotate so as to agitate the water and clothes in the inner tub 3.

Preferably, in this embodiment, the water-repellent ribs 503 are arranged in a plurality of uniformly arranged along the circumferential direction of the pulsator shaft 502.

The axial length of the water-drawing rib 503 is the same as that of the impeller shaft 502, and in this embodiment, the extending path of the water-drawing rib 503 may be a straight line extending vertically or may be a curve. Preferably, the extending path of the water-drawing rib 503 is a wavy line, that is, the extending path of the water-drawing rib 503 on the expanding surface of the outer peripheral wall of the pulsator shaft 502 is a wavy line, so that the stirring effect of the pulsator 5 on water and clothes can be improved.

In some possible embodiments, the radial distance between the end portion and the root portion of the water-repellent rib 503, that is, the distance that the end portion of the water-repellent rib 503 extends outward is a structure with a small distance between two ends and a large distance between the middle portion, that is, the water-repellent rib 503 extends outward from the outer wall of the pulsator shaft 502, and the extending length of the water-repellent rib is in a form of gradually increasing from top to bottom and then gradually decreasing from top to bottom, so that the whole pulsator body 501 is spherical.

In this embodiment, through the above-mentioned setting, make the projection of the tip of dialling water muscle 503 on dialling the axial cross section of water muscle 503 be the middle part to the convex arc of direction that keeps away from impeller shaft 502 to can guarantee impeller 5 to the stirring effect of rivers and clothing, can prevent again that impeller 5 and clothing from twining each other, improve impeller 5 pivoted smoothness.

In other possible embodiments, only the top end of the pulsator 5 is provided with a spherical shape, and the bottom end of the pulsator 5 is provided with a cylindrical shape.

In this embodiment, the distance between the end and the root of the water-drawing rib 503 increases gradually from the upper end to the middle and keeps the same from the middle to the lower end, that is, the projection of the end of the water-drawing rib 503 on the axial section of the water-drawing rib 503 is an arc shape at the upper end and a straight line shape with the lower end facing vertically downward.

Preferably, in this embodiment, the thickness of the water-drawing ribs 503 is gradually reduced from the root to the end, so that not only can the contact area between each water-drawing rib 503 and water and clothes be increased, the stirring effect of the pulsator 5 be improved, but also the strength of the water-drawing ribs 503 can be ensured, and the service life of the pulsator 5 can be prolonged.

Preferably, in this embodiment, the top surface of the pulsator shaft 502 is a spherical surface with a middle portion protruding outwards along the axial direction, the curvature of the top surface of the pulsator shaft 502 is the same as the curvature of the end portion of the water-drawing rib 503, and the top edge of the pulsator shaft 502 is in smooth transitional connection with the top end of the water-drawing rib 503, so that the outer peripheral surface of the pulsator 5 forms a sphere, and the occurrence of the condition of scratching clothes in the rotation process of the pulsator 5 can be prevented.

The embodiment discloses an inner tub 3, the inner tub 3 includes an inner tub main body 301, the inner tub main body 301 includes an inner tub bottom and an inner tub wall that are integrally formed, the inner tub bottom of the inner tub 3 is provided with the pulsator 5 in the first embodiment, and a motor shaft 8 of the washing machine is in transmission connection with the pulsator 5 to drive the pulsator 5 to rotate for washing clothes in the inner tub 3.

As shown in fig. 12, in some possible embodiments, the pulsator 5 is mounted on the inner tub bottom by a bearing structure. Specifically, the middle part of the inner barrel bottom is embedded with a bearing seat, a bearing is installed in the bearing seat, the outer ring of the bearing is connected with the bearing seat, and the inner ring of the bearing is connected with the impeller shaft 502 of the impeller 5, so that the impeller shaft 502 is arranged on the inner barrel bottom in a limiting way, and the relative rotation between the impeller 5 and the inner barrel 3 is realized through the bearing.

Preferably, in this embodiment, the bearing inner ring is lengthened and made into a spline form, the contact surface of the bearing inner ring and the pulsator 5 is tightly matched with the pulsator 5, so that the pulsator 5 is blocked with the bearing, and the contact surface of the bearing inner ring and the pulsator shaft 502 is through a spline structure, so that the pulsator shaft 502 can drive the pulsator 5 to rotate and the bearing can be removed axially.

Preferably, in this embodiment, a sealing ring is further disposed between the bottom of the inner barrel and the bottom of the pulsator 5. The sealing ring is sleeved on the impeller shaft 502, and the upper end and the lower end of the sealing ring are respectively attached to the bearing inner ring and the impeller main body 501.

As shown in fig. 9, in some possible embodiments, the pulsator 5 is mounted on the inner tub bottom of the inner tub body 301 through a snap structure, and is in axial limit fit with the inner tub bottom. The user can dismantle, change impeller 5 in the use to, can dispose the impeller 5 of multiple form for a washing machine, with the variety that satisfies the clothing that waits to wash, the user only needs to purchase a washing machine can wash all kinds clothing, has improved the utilization ratio of resource, has reduced user's washing cost. The user can also prevent bacteria from growing by detaching pulsator 5 from the bottom of the washing machine to clean dirt between the bottom of pulsator 5 and the top of the inner tub bottom.

In this embodiment, the fastening structure includes a claw 504 and a fastening groove 3023 that are mutually matched, where the claw 504 includes a neck portion extending downward from the bottom of the pulsator shaft 502 of the pulsator 5, and a fastening protrusion extending from an end of the neck portion, that is, from an end of the neck portion away from the pulsator shaft 502, and protruding outward in a radial direction of the pulsator shaft 502; the clamping groove 3023 is arranged on the bottom of the inner barrel and comprises a groove bottom, a groove wall and a clamping part arranged at the notch of the clamping groove 3023, and the clamping claw 504 is clamped between the groove bottom and the clamping part through a clamping convex.

Specifically, the inner barrel bottom is provided with a barrel bottom connecting piece 302, the barrel bottom connecting piece 302 includes a first connecting piece 3021 and a second connecting piece 3022 disposed at the inner side and the outer side of the inner barrel bottom, at least a portion of the inner barrel bottom is clamped between the first connecting piece 3021 and the second connecting piece 3022, and the clamping groove 3023 is coaxially disposed on the barrel bottom connecting piece 302 of the inner barrel bottom.

The embodiment discloses a washing machine, which comprises a shell 101, wherein a barrel module is arranged in the shell 101, the washing machine comprises an outer barrel 4 and an inner barrel 3 arranged in the outer barrel 4, and the inner barrel 3 is the inner barrel 3 in the second embodiment.

In this embodiment, the inner barrel 3 is magnetically connected with the outer barrel 4, and the inner barrel 3 is detachably installed in the outer barrel 4. Therefore, the washing machine can be provided with a plurality of inner barrels 3, and can be provided with a plurality of impellers 5 with different structures for each inner barrel 3, when different types of clothes need to be washed, the impellers 5 on the inner barrels 3 can be manually detached, and then the impellers 5 corresponding to the clothes to be washed can be arranged on the inner barrels 3.

Example six

As shown in fig. 1 and 2, in the present embodiment, a washing machine is described, which includes a machine body 1 and a door body 2, the door body 2 being rotatably mounted on the machine body 1 by a hinge, the door body 2 having an open position for opening a laundry putting-in opening 102 on the machine body 1, and a closed position for closing the laundry putting-in opening 102.

The machine body 1 comprises a shell 101 and an inner barrel 3 arranged in the shell 101, wherein the inner barrel 3 comprises an inner barrel bottom and an inner barrel wall, and preferably, the inner barrel wall and the inner barrel bottom are integrally formed.

As shown in fig. 13, in this embodiment, a negative pressure assembly 7 is further disposed in the machine body 1 of the washing machine, and the negative pressure assembly is communicated with the inner tub 3 and is used for extracting water and air in the inner tub 3. The inner barrel 3 is a hole-free barrel with a hole-free inner barrel wall, the inner barrel 3 is made of soft materials such as rubber, and when the negative pressure component 7 works, water and air in the inner barrel 3 can be pumped out, so that the inner wall of the inner barrel 3 can extrude washings in the inner barrel 3, the water in the washings is separated, and the washings are pumped out by the negative pressure component 7, so that extrusion dehydration of the washings is realized, vibration and noise generated during dehydration of the washing machine can be reduced, abrasion of the washings during dehydration of the washing machine can be reduced, and use experience of users is improved.

Preferably, in this embodiment, the inner tub wall is provided with a fold portion 309 for shrinking the inner tub 3, and the fold portion 309 can provide a margin for shrinking the inner tub 3, so that the inner tub 3 can be fully shrunk under the condition of ensuring that the inner tub opening and the inner tub bottom are not moved, and the extrusion effect of the inner wall of the inner tub 3 on the washings in the inner tub 3 is ensured.

In some possible embodiments, an outer tub 4 for accommodating an inner tub 3 is provided in the housing 101, and the inner tub bottom is magnetically connected to the outer tub bottom. The inner barrel opening is provided with a barrel opening positioning piece 303, the through opening positioning piece is embedded in the positioning opening 112 in the middle of the clothes putting opening 102, and when the door body 2 is in a closed position, the barrel opening positioning piece 303 is tightly pressed in the positioning opening 112, so that the stability of the relative position between the inner barrel 3 and the outer barrel 4 is ensured.

Of course, any other assembly method may be adopted between the inner barrel 3 and the outer barrel 4, and only the relative position between the inner barrel 3 and the outer barrel 4 is required to be unchanged. The above arrangement is only a preferred one, which has the advantage of being used for replacing the inner tub 3, avoiding cross-infection.

In addition, in some possible embodiments, the washing machine may not be provided with the outer tub 4, only the inner tub 3 may be provided, and only the stability of the relative position between the inner tub 3 and the casing 101 may be ensured.

The present embodiment is described taking an example in which the inner tub 3 is mounted in the outer tub 4.

As shown in fig. 8, in this embodiment, the fold 309 extends along the circumference of the inner tub wall, is recessed toward the inside of the inner tub 3, and the outer circumference of the fold 309 and the outer Zhou Gongmian of the inner tub wall. In this embodiment, the periphery of fold 309 is flush with the periphery of the inner tub wall, so that the whole periphery of the outer tub wall is on the same cylindrical surface, so that the periphery of the inner tub wall is attached to the inner wall of the outer tub wall, so as to improve the stability of the assembly effect of the inner tub 3, and meanwhile, in the working process of the inner tub 3, the inner space of the outer tub 4 is always limited, and other components of the washing machine can be installed between the inner wall of the casing 101 and the outer tub 4, so that the contraction and extension of the inner tub 3 can be prevented from affecting the normal operation of the other components in the casing 101. In addition, the arrangement of the outer tub 4 can improve the water resistance of the washing machine and prevent the water flow from wetting other components in the casing 101 during the replacement of the inner tub 3.

In some possible embodiments, the extending path of the pleat 309 on the inner tub wall deployment surface is a straight line, i.e. the pleat 309 is arranged in a regular circle, and the pleat 309 comprises at least two axially arranged pleats, each pleat being parallel to each other.

In some possible embodiments, the path of extension of the pleat 309 on the inner tub wall development is a curve curving upwards and/or downwards.

In this embodiment, the fold 309 has an upwardly and/or downwardly curved circular arc fold while extending circumferentially around the inner tub wall.

Preferably, the fold 309 may extend in a horizontal direction, and have a plurality of upwardly convex and/or downwardly concave arc-shaped folds along a horizontally extending path, or the fold 309 may extend along a uniform and continuous circumferential convex or downwardly concave fold, or the fold 309 may extend along a circumferential uniform and continuous wavy line.

In this embodiment, the pleat 309 includes at least two pleats aligned in the axial direction, and each pleat is parallel to each other.

By the above arrangement, the shape of the fold 309 can be more suitable for the deformation of the inner tub 3 when it is contracted, and the squeezing effect of the inner wall of the inner tub 3 on the laundry can be improved.

In some possible embodiments, the pleat 309 comprises at least one pleat having a straight path of extension on the inner tub wall expansion and at least one pleat having a curved path of extension on the inner tub wall expansion. Accordingly, the fold 309 can be adapted to the shrinkage of the inner tub 3 in different forms, and the squeezing effect of the inner wall of the inner tub 3 on the laundry can be further improved.

In this embodiment, the fold portion 309 is disposed at the top of the inner tub wall and near the inner tub opening, in general, the laundry is placed in the inner tub 3 below the fold portion 309, that is, after the washing water in the washing machine is drained, the laundry falls into the inner tub 3 below the fold portion 309, when negative pressure dehydration is performed, the fold portion 309 extends downward, the inner tub wall below the fold portion 309 extrudes the laundry with the inner tub bottom, so that the water adhered in the laundry can be directly drained from the inner tub drain outlet 305 on the inner tub bottom after being extruded, and the dehydration effect is improved.

Preferably, in the present embodiment, the standard water level of the washing machine is disposed below the fold 309.

In this embodiment, if the inner tub 3 is to squeeze the laundry to be dehydrated, the air tightness of the inner tub 3 needs to be ensured, for this purpose, a plugging portion 203 protruding downward is provided at the bottom of the door body 2, and the shape of the outer periphery of the plugging portion 203 is adapted to the shape of the inner tub mouth. When the door body 2 is closed, the blocking part 203 is inserted into the inner barrel opening, and the door body 2 at the periphery of the blocking part 203 is abutted against the top surface of the inner barrel opening, so that the inner barrel opening is closed, and the air tightness of the inner barrel 3 is ensured.

In this embodiment, the inflow water of the washing machine flows into the inner tub 3 from the door body 2. Specifically, the plugging portion 203 of the door body 2 is provided with a water inlet 204, and the water inlet pipe 104 of the washing machine extends to the inside of the door body 2 through the hinge and is connected with the water inlet 204 so as to supply water to the inner tub 3.

In this embodiment, one end of the water inlet pipe 104 is connected to a water source in the user's home, and the other end extends into the door 2 through the hinge, and is connected to the water inlet 204 on the plugging portion 203 from the inside of the door 2.

The water inlet pipe 104 of the washing machine is provided with a water inlet valve 1041 and a flowmeter, and the flowmeter is communicated with the water inlet valve 1041 and is used for detecting the water quantity introduced into the inner barrel 3 and controlling the opening and closing of the water inlet valve 1041. Specifically, the flow meter and the water inlet valve 1041 may be respectively connected to a control unit of the washing machine in a communication manner, when the water inlet valve 1041 is opened, the control unit controls the flow meter to work to obtain the amount of the water inlet, the flow meter transmits the detection result to the control unit in real time, and when the water inlet amount is detected to reach a preset value, the control unit controls the water inlet valve 1041 to be closed.

Preferably, in this embodiment, the water inlet pipe 104 is further provided with an instant heating module 105, and the instant heating module 105 is disposed between the water inlet valve 1041 and the inner tub 3 and is in communication connection with the control unit of the washing machine. When the laundry is required to be boiled and washed at high temperature, namely, the heating module 105 is operated, and when the inflow water flows through the instant heating module 105, the instant heating module 105 heats the inflow water to a preset temperature, and the water inlet pipeline 104 conveys the inflow water into the inner barrel 3 to wash the laundry, so that the washing effect is improved.

Preferably, in this embodiment, the inlet valve 1041 is a flow-adjustable inlet valve 1041, and the inlet valve 1041 controls the flow of the inlet water flow according to the temperature rising range of the inlet water flow.

Specifically, in some possible embodiments, a temperature sensor for detecting the initial temperature of the incoming water flow is provided upstream of the instant heating module 105, said temperature sensor being in communication with the control unit of the washing machine. When a high temperature boil-and-wash is required, i.e. the heating module 105 is operated, then the inlet valve 1041 is opened and the temperature sensor acquires the initial temperature of the inlet water flow and transmits to the control unit. The control unit judges the flow rate of the inflow water flow according to the difference between the preset temperature and the initial temperature of the inflow water flow, and adjusts the opening of the inflow valve 1041 accordingly.

The difference between the preset temperature and the initial temperature of the water inflow is the heating amplitude of the water inflow, and the flow of the water inflow is inversely proportional to the heating amplitude of the water inflow, that is, the opening of the water inlet valve 1041 is inversely proportional to the heating amplitude of the water inflow.

In some possible embodiments, the water inlet pipe 104 does not need to be provided with a temperature sensor, the water inlet valve 1041 is provided with two gears, including a first gear with smaller flow rate and a second gear with larger flow rate, when the washing machine operates the normal washing program, the water inlet valve 1041 is opened to the second gear to supply water to the washing machine at a faster speed, when the washing machine operates the high-temperature boiling and washing program, i.e. the heating module 105 operates first, then the water inlet valve 1041 is opened to the first gear to supply water to the washing machine at a slower speed, so that the inflow water is sufficiently heated at the instant heating module 105. Therefore, the washing effect of the washing machine on the washed objects during high-temperature boiling and washing can be guaranteed, the control program of the washing machine can be simplified, and the use experience of a user is improved.

In the embodiment, when the washing machine is in a dehydration stage, the air pressure in the inner barrel 3 is smaller than the air pressure outside, and the inner wall of the inner barrel 3 extrudes washings to complete dehydration; when the washing machine is in the water inlet stage, the water discharge stage and the washing stage, the inside of the inner tub 3 is balanced with the outside air pressure.

In order to balance the internal air pressure and the external air pressure of the inner barrel 3, an air vent 205 communicated with the inner barrel 3 is formed at the bottom of the door body 2, and the air vent 205 is formed at the bottom of the blocking part 203. The body 1 is provided with a vent valve 1071 communicating with the outside atmosphere, and the vent valve 1071 communicates with the vent 205 through the air pipe 107.

Specifically, one end of the air pipe 107 is connected to the air vent valve 1071, and the other end of the air pipe 107 extends into the door 2 through the hinge, and is connected to the air vent 205 from the inside of the door 2. The vent valve 1071 is driven by a stepper motor, which is electrically connected to a control unit of the washing machine. When the washing machine enters a dewatering stage, the step motor-driven vent valve 1071 is closed to form a closed space inside the inner tub 3, and when the washing machine enters a water inlet stage, a water discharge stage and a washing stage, the step motor-driven vent valve 1071 is opened to balance the internal air pressure and the external air pressure of the inner tub 3, so that water flow can normally flow into or out of the inner tub 3.

In this embodiment, the negative pressure assembly 7 communicates with the inner tub 3 from the bottom of the inner tub 3. Specifically, the negative pressure assembly 7 includes a temporary storage cavity 701 and an air pump 702, the temporary storage cavity 701 is connected with an inner barrel water outlet 305 on the bottom of the inner barrel, an input end of the air pump 702 is connected with the temporary storage cavity 701 from the top of the temporary storage cavity 701, an output end of the air pump 702 is communicated with the external atmosphere, a water discharge pipeline 110 of the washing machine is connected with the temporary storage cavity 701 from the bottom of the temporary storage cavity 701, and a one-way valve is arranged on the water discharge pipeline 110 of the washing machine.

Thus, when the air pump 702 is operated, the air in the temporary storage chamber 701 can be drawn out, so that a negative pressure is formed in the temporary storage chamber 701, thereby drawing out the water and the air in the inner tub 3. After the water and air in the inner barrel 3 enter the temporary storage cavity 701, the water and the air are separated, the water is temporarily stored at the bottom of the temporary storage cavity 701, the air rises to the top of the temporary storage cavity 701, and the air is pumped out by the air pump 702. When the air pump 702 stops operating, the water in the temporary storage chamber 701 is discharged from the drain line 110.

Preferably, in this embodiment, a drain valve 111 is further disposed between the temporary storage chamber 701 and the inner tub drain 305, and the drain valve 111 is opened during draining and dewatering, and the drain valve 111 is closed during washing and water intake. By providing the drain valve 111, the washing machine can prevent water in the inner tub 3 from entering the temporary storage cavity 701 during water inlet and washing processes, so that the washing machine can normally operate.

In this embodiment, when the washing machine is in the water inlet stage and the washing stage, the ventilation valve 1071 is opened and the drain valve 111 is closed; when the washing machine enters a water draining stage, the ventilation valve 1071 is opened, and the drain valve 111 is opened; when the washing machine enters the dehydration stage, the vent valve 1071 is closed, the drain valve 111 is opened, and the air pump 702 is operated.

Preferably, in this embodiment, when the washing machine enters the draining stage, in order to improve the draining efficiency of the washing machine, the air pump 702 may be turned on at the same time to accelerate the water flow in the inner tub 3 to be drained.

Preferably, in this embodiment, when the water flow in the inner tub 3 is completely discharged, or after the laundry is dehydrated, or when the water level in the temporary storage chamber 701 reaches a preset value, the drain valve 111 is controlled to be closed, and the air pump 702 is controlled to operate to charge air into the temporary storage chamber 701, so that the water flow in the temporary storage chamber 701 can be accelerated to be discharged.

In this embodiment, in order to prevent water in the temporary storage chamber 701 from entering the air pump 702 and damaging the air pump 702, a water level sensor for detecting the water level in the temporary storage chamber 701 is disposed in the temporary storage chamber 701, and the water level sensor is in communication connection with a control unit of the washing machine. When the washing machine performs dehydration and drainage, the water level sensor detects the water level in the temporary storage cavity 701 in real time, and when the water level in the temporary storage cavity 701 reaches a preset value, the drain valve 111 is controlled to be closed, the air pump 702 is closed or runs reversely, so that the water in the temporary storage cavity 701 is drained from the drainage pipeline 110. When the water in the temporary storage chamber 701 is exhausted or the water in the temporary storage chamber 701 is exhausted for a preset time, the drain valve 111 is opened again, and the air pump 702 is operated in the forward direction to continue sucking the water and air in the inner tub 3.

In this embodiment, the communication position of the air pump 702 is higher than the preset water level in the temporary storage cavity 701, so as to ensure that the water in the temporary storage cavity 701 is not pumped out by the air pump 702.

Preferably, in order to further reduce noise, in this embodiment, a muffler 9 is disposed at the output end of the air pump 702.

In this embodiment, the temporary storage chamber 701 may be installed between the inner wall of the housing 101 and the outer tub 4. Preferably, the shape of the temporary storage cavity 701 may be set such that one side is matched with the shape of the inner wall of the casing 101, and the other side of the temporary storage cavity 701 is matched with the shape of the outer tub 4, that is, the temporary storage cavity 701 can fully utilize the space between the inner wall of the casing 101 and the outer tub 4, thereby reducing the size of the washing machine.

In this embodiment, the pulsator 5 is disposed at the bottom of the inner tub, and the motor shaft 8 of the washing machine drives the pulsator 5 to rotate to agitate water and clothes in the inner tub 3, thereby achieving the purpose of washing.

The bottom of the inner barrel is also provided with a magnet 6/magnetic part 10, the bottom of the outer barrel is provided with a magnetic part 10/magnet 6 corresponding to the magnet, and the inner barrel 3 and the outer barrel 4 are connected through magnetic attraction, so that the inner barrel 3 is replaceable, and cross infection is fundamentally avoided.

Preferably, in this embodiment, the pulsator 5 and the magnet 6/magnetic member 10 are respectively mounted on both inner and outer sides of the inner tub bottom, and are mounted on the inner tub bottom through the tub bottom connecting member 302.

In this embodiment, the barrel bottom connector 302 includes a first connector 3021 and a second connector 3022, where the first connector 3021 and the second connector 3022 are respectively disposed on the inner and outer sides of the inner barrel bottom.

To ensure the stability of the installation of the pulsator 5 and the magnet 6/magnetic member 10, the tub bottom connecting member 302 is made of a hard material, and specifically, the tub bottom connecting member 302 may be a metal member or a hard plastic member.

Preferably, in order to improve the extrusion effect of the inner barrel 3 on the washings when shrinking, the diameter of the barrel bottom connecting piece 302 is smaller than the diameter of the inner barrel bottom, so that the installation stability of the pulsator 5 and the magnet 6/magnetic piece 10 can be ensured, the blockage of the hard barrel bottom connecting piece 302 to the shrinkage of the inner barrel 3 can be reduced, the inner barrel bottom outside the coverage area of the barrel bottom connecting piece 302 can be shrunk together with the inner barrel wall, the extrusion effect of the inner barrel 3 on the washings is improved, even if the washings in the inner barrel 3 are less, the washings can be fully extruded, and the use experience of a user is improved.

Example seven

As shown in fig. 13 and 14, in this embodiment, the washing machine is further provided with an overflow structure, which is used for detecting whether the water level in the inner tub 3 exceeds the water level requirement, so that additional water inlet caused by failure of the flowmeter can be ensured, and overflow and drainage can be realized.

In this embodiment, the washing machine has a standard water level and a highest water level.

As shown in fig. 14, in some possible embodiments, the overflow structure includes a probe 106, and the probe 106 is communicatively connected to a water inlet valve 1041 and/or a water outlet valve 111 of the washing machine, for detecting whether the water level in the inner tub 3 reaches a maximum water level.

In this embodiment, the probe 106 is connected to a control unit of the washing machine in communication, and when the probe 106 detects that the water level in the inner tub 3 rises to the highest level, the control unit controls the water inlet valve 1041 to be closed and/or controls the water outlet valve 111 to be opened.

Preferably, in this embodiment, the standard water level and the maximum water level of the washing machine may be set to the same height, so that when the water level in the inner tub 3 reaches the maximum water level, the water inlet valve 1041 is controlled to be closed, and the washing machine may be washed at the standard water level.

It is also possible to set the highest water level to be greater than the preset water level. Thus, when the water level in the inner tub 3 reaches the maximum water level, the water inlet valve 1041 may be controlled to be closed, and the washing machine may be operated at the maximum water level to wash laundry.

Of course, when the water level reaches the maximum water level, the water inlet valve 1041 may be controlled to be closed, and the water outlet valve 111 may be controlled to be opened to discharge a part of water in the inner tub 3, thereby allowing the washing machine to wash at any water level below the maximum water level. Preferably, the falling height of the water level in the inner tub 3 may be controlled by controlling the opening time period of the drain valve 111.

Preferably, another probe 106 may be provided at the standard water level outlet of the washing machine for controlling the drain valve 111 to be closed when the water level in the inner tub 3 drops to the standard water level.

In other possible embodiments, as shown in fig. 13, an overflow port is formed in the inner tub wall, and the overflow port is in communication with an overflow structure. Preferably, in this embodiment, the overflow port is offset from the fold 309 on the inner tub 3.

The relief structure includes a relief valve 1081, where the relief valve 1081 may be a relief check valve or a relief solenoid valve.

In some possible embodiments, the relief valve 1081 is a relief check valve. In this embodiment, the overflow port is opened at a position corresponding to the highest water level, the input end of the overflow check valve is communicated with the overflow port on the inner tub 3 through the overflow pipe 108, and the output end of the overflow check valve is communicated with the drainage pipeline 110 of the washing machine. The overflow check valve is always kept open, and in the water inlet stage, the overflow check valve can balance the air pressure in the inner barrel 3, so that water inlet smoothness is ensured, and when the water level in the inner barrel 3 rises to the highest water level, if water is continuously supplied to the inner barrel 3, redundant water flow is discharged from the overflow port.

In this embodiment, the vent 205 and the vent valve 1071 are additionally provided for balancing the air pressure in the inner tub 3 during the draining stage.

In this embodiment, the overflow structure further includes a probe 106, where the probe 106 is disposed at the bottom of the door body 2 of the washing machine, and is used to detect whether the water level in the inner tub 3 reaches the highest water level. The probe 106 is in communication connection with a control unit of the washing machine, and when the probe 106 detects that the water level in the washing machine reaches the highest water level, the control unit controls the water inlet valve 1041 of the washing machine to be closed.

In some possible embodiments, the relief structure includes a relief valve 1081 and a probe 106, the relief valve 1081 configured as a relief solenoid valve.

The overflow valve 1081 is arranged on the machine body 1, one end of the overflow valve is communicated with the inner barrel 3 from the highest water level of the inner barrel 3, and the other end of the overflow valve is communicated with a drainage pipeline 110 of the washing machine; the probe 106 is arranged at the bottom of the door body 2 and is used for detecting whether the water level in the inner barrel 3 reaches the highest water level. The probe 106 is connected in communication with the overflow valve 1081, and when the probe 106 detects that the water level in the inner tub 3 rises to the maximum level, the overflow valve 1081 is opened to discharge the surplus water flow from the overflow port.

Specifically, in this embodiment, the overflow port is opened at a position corresponding to the highest water level, the input end of the overflow valve 1081 is communicated with the overflow port on the inner tub 3 through the overflow pipe 108, and the output end of the overflow valve 1081 is communicated with the drain pipeline 110 of the washing machine.

The overflow valve 1081 and the probe 106 are respectively connected to the control unit of the washing machine in a communication manner, and when the probe 106 detects that the water level in the inner tub 3 rises to the highest water level, the control unit controls the overflow valve 1081 to be opened, and simultaneously controls the water inlet valve 1041 to be closed, and the excessive water flow in the inner tub 3 is discharged from the overflow port. When the washing machine enters the dehydration stage, the control unit controls the overflow valve 1081 to be closed, thereby ensuring that the dehydration process of the washing machine is smoothly performed.

Preferably, in this embodiment, the overflow valve 1081 may be configured as a three-way reversing valve, and the overflow valve 1081 has a first port connected to an overflow port on the inner tub 3, a second port connected to the outside atmosphere, and a third port connected to the drain line 110 of the washing machine, and has at least a first position communicating the first port with the third port, a second position communicating the first port with the second port, and a third position closing the first port.

When the overflow valve 1081 is at the first position, the inner tub 3 is in communication with the drain line 110, and at this time, the overflow valve 1081 may be used to drain the excessive intake water in the inner tub 3, and may be used to balance the air pressure inside and outside the inner tub 3 during the intake phase; when the overflow valve 1081 is in the second position, the inner tub 3 is in communication with the outside atmosphere, and at this time, the overflow valve 1081 may be used to balance the air pressure inside and outside the inner tub 3 during the draining or water intake phase of the washing machine; when the overflow valve 1081 is in the third position, the overflow port of the inner tub 3 is closed, and at this time, the negative pressure assembly 7 operates to shrink the inner tub 3, thereby squeezing and dehydrating the laundry in the inner tub 3.

In the present embodiment, by setting the overflow valve 1081 to be in communication with the inner tub 3 from the highest water level of the inner tub 3, and setting the overflow valve 1081 to have a first position to communicate the inner tub 3 with the drain line 110 and a second position to communicate the inner tub 3 with the outside atmosphere, the overflow valve 1081 can be used to balance the air pressure of the inner tub 3 during the water intake, drain and wash phases of the washing machine, so that the water intake, drain and wash phases can be smoothly performed. Therefore, the air vent valve 1071 is not required to be additionally arranged on the washing machine, and the air vent 205 is not required to be arranged at the bottom of the door body 2, so that the structure of the washing machine is simplified, and the cost of the washing machine is reduced.

In this embodiment, the design concept of the connection structure between the overflow valve 1081 and the overflow unidirectional valve and the overflow port on the inner tub 3 is the same, and in this embodiment, the connection structure between the overflow valve 1081/the overflow unidirectional valve and the inner tub 3 is described by taking the overflow valve 1081 as an example.

In this embodiment, the overflow valve 1081 is connected to an overflow port on the inner tub 3 via an overflow pipe 108. Specifically, the overflow valve 1081 is fixed in the machine body 1 of the washing machine, one end of the overflow pipe 108 is connected with the first port of the overflow valve 1081, a joint is provided at the overflow port of the inner tub 3, the joint can be directly formed at the overflow port, and also can be mounted at the overflow port by any means such as adhesion, threads, bolts, etc., and one end of the overflow pipe 108 far away from the overflow valve 1081 is mounted at the joint by any means such as plugging, threaded connection, pipe hoop connection, etc.

In this embodiment, in order to ensure the stability of the installation structure between the overflow pipe 108 and the overflow port, the overflow pipe 108 has a margin for the inner tub 3 to retract normally, and preferably, the overflow pipe 108 may be a telescopic bellows or a hose.

Preferably, in this embodiment, for the model of the non-replaceable barrel, the overflow pipe 108 and the overflow port on the inner barrel 3 may be connected by the above-mentioned joint, and of course, the overflow pipe 108 may be directly bonded to the overflow port, or the overflow port and the end of the overflow pipe 108 away from the overflow valve 1081 may be integrally formed.

For the model of the replaceable inner vessel 3, the overflow pipe 108 is detachably connected at the overflow port.

In some preferred embodiments, for the model of the replaceable inner vessel 3, the end of the overflow pipe 108 remote from the overflow valve 1081 is threaded with a fitting on the overflow port. Specifically, one of the joint and the end of the overflow pipe 108 is provided with a nut, the nut and the joint or the end of the overflow pipe 108 are axially limited and circumferentially rotatable, and the nut is provided with internal threads; the other end of the joint and overflow pipe 108 is provided with external threads which are matched with the internal threads. When the detachable connection between the joint and the overflow pipe 108 can be realized by sleeving the screw cap on the external thread for screwing.

In this embodiment, the end of the overflow pipe 108 extends into the outer tub 4, the machine body 1 may be provided with a detection port for the user to disassemble the adaptor and the overflow pipe 108, and when the user replaces the inner tub 3, the overflow pipe 108 may be disassembled from the adaptor through the detection port, and after the new inner tub 3 is in place, the overflow pipe 108 may be mounted on the adaptor again.

Or the overflow pipe 108 has a margin for replacing the inner tub 3, specifically, when the inner tub 3 is drawn out, the end of the overflow pipe 108 is at least partially drawn out together with the inner tub 3, the user can separate the overflow pipe 108 from the joint outside the laundry inlet 102, when the user puts in a new inner tub 3, the end of the overflow pipe 108 can be taken out from the laundry inlet 102, and when the inner tub 3 is placed at a position corresponding to the end of the overflow pipe 108, the overflow pipe 108 is manually connected to the joint, and then the putting in is continued. Preferably, the overflow pipe 108 may be a hose or a bellows, and the remaining amount of the overflow pipe 108 for replacing the inner tub 3 may be stored between the inner tub 3 and the outer tub 4.

In this embodiment, the overflow pipe 108 is disposed to extend inward from the middle of the outer tub wall, and the length of the overflow pipe 108 extending to the outer tub 4 is greater than or equal to the distance between the position where the overflow pipe 108 penetrates the outer tub wall and the laundry putting opening 102.

Preferably, in this embodiment, a water receiving cavity 109 may be further disposed downstream of the overflow valve 1081, the water receiving cavity 109 is used for temporarily storing the excessive water in the inner tub 3, and the bottom of the water receiving cavity 109 may be communicated with the water draining pipeline 110 or may be communicated with the water inlet pipeline 104 of the washing machine, so that the excessive water of the washing machine may be directly drained, or the excessive water of the washing machine may be used for subsequent washing or rinsing, thereby improving the water saving performance of the washing machine.

Preferably, in this embodiment, the bottom of the water receiving cavity 109 may be only communicated with the water drain pipeline 110, or may be only communicated with the water inlet pipeline 104, and of course, a switching valve may also be disposed at the bottom of the water receiving cavity 109, and may be selectively communicated with the water drain pipeline 110 or the water inlet pipeline 104 through the switching valve.

Preferably, in this embodiment, the water receiving cavity 109 is connected to the water inlet pipe 104 upstream of the water inlet valve 1041 through a switching valve.

Example eight

As shown in fig. 15, in the present embodiment, the washing machine includes a negative pressure assembly 7, and the negative pressure assembly 7 communicates with an inner tub drain 305 at the bottom of the inner tub for pumping water and air in the inner tub 3, thereby accelerating drainage or achieving negative pressure dehydration.

Specifically, the inner tub 3 is installed in the outer tub 4, the inner tub outlet 305 is abutted with the outer tub outlet 401, and the negative pressure assembly 7 is abutted with the outer tub outlet 401 from the bottom of the outer tub outlet 401, thereby sucking water and air in the inner tub 3.

The temporary storage cavity 701 comprises a suction port, a water outlet and an exhaust port, the suction port of the temporary storage cavity 701 is communicated with the inner barrel water outlet 305, and a drain valve 111 is arranged between the suction port and the inner barrel 3. The water outlet of the temporary storage cavity 701 is arranged at the bottom of the temporary storage cavity 701 and is communicated with the water discharge pipeline 110 of the washing machine, the air outlet is arranged at the top of the temporary storage cavity 701 and is connected with the air pump 702, and the water discharge pipeline 110 is provided with a one-way valve. When the negative pressure assembly 7 works, the air pump 702 operates to pump out air in the temporary storage cavity 701, so that negative pressure is formed in the temporary storage cavity 701, water and air in the inner barrel 3 are pumped into the temporary storage cavity 701, and negative pressure dehydration and accelerated drainage are realized.

Preferably, a filter device is also included.

In this embodiment, the filtering means includes a first filtering means 703 disposed between the buffer chamber 701 and the inner tub 3 and a second filtering means 704 disposed inside the buffer chamber 701. Through setting up filter equipment, can prevent that the line bits from blocking drain pipe 110, simultaneously, can prevent foam and/or line bits from being inhaled in the air pump 702, cause the condition emergence of air pump 702 inefficacy, improve washing machine running process's stability.

As shown in fig. 15, the first filtering device 703 is provided as a lint filter provided between the inner tub drain 305 and the drain valve 111, and can filter the water flowing therethrough in the drain stage and the dehydration stage, thereby preventing lint in the water from clogging the drain line 110.

The thread scraps filter can be any thread scraps filter in the prior art, in this embodiment, the first filtering device 703 includes a filtering cavity and a filter element arranged in the filtering cavity, two ends of the filtering cavity are respectively connected with the inner barrel 3 and the drain valve 111, the filter element can be set to be net-shaped, and is arranged in the filtering cavity, and water and air entering the filtering cavity from the inner barrel 3 flow out into the temporary storage cavity 701 after being filtered by the filter element.

The second filter device 704 includes a second filter screen 7042 and a first filter screen 7041.

In this embodiment, the second filter screen 7042 is disposed at a lower position in the temporary storage cavity 701, the first filter screen 7041 is disposed at an upper position in the temporary storage cavity 701, a suction port communicated with the inner barrel 3 is disposed at a position between the first filter screen 7041 and the second filter screen 7042, the water outlet is disposed below the second filter screen 7042, and the air outlet is disposed above the first filter screen 7041, so that in a suction process of the air pump 702, if foam and thread scraps exist in water discharged from the inner barrel 3, the water can be eliminated through the thread scraps filter and the first filter screen 7041 and the second filter screen 7042 in the temporary storage cavity 701, operation of the air pump 702 is not affected, and the drainage pipeline 110 is not blocked.

Preferably, the first filter 7041 is disposed below the air outlet and near the air outlet, and the second filter 7042 is disposed above the water outlet and near the water outlet.

In the drainage stage, due to the large water amount, the medium pumped into the temporary storage cavity 701 from the inner barrel 3 is a large amount of water, no air or only a small amount of air, under the working condition, the thread scraps flow along with the water flow, and the thread scraps cannot exist in the air, and even if a small amount of thread scraps are not filtered by the thread scraps filtering device, the thread scraps can be filtered by the second filter screen 7042 in the temporary storage cavity 701.

In the dewatering stage, especially in the initial stage of the dewatering stage, water in the inner tub 3 is discharged, so that the medium pumped out of the temporary storage cavity 701 from the inner tub 3 is air with a large amount, no water or only a small amount of water, under the condition that the thread scraps in the inner tub 3 flow out of the inner tub 3 along with the air, the thread scraps filter is difficult to retain small thread scraps, and if the thread scraps enter the temporary storage cavity 701, the thread scraps flow upwards along with the air, and at this time, the thread scraps are retained in the temporary storage cavity 701 by the first filter screen 7041, so that the thread scraps can be further prevented from entering the air pump 702.

Preferably, in this embodiment, the mesh aperture of the second filter 7042 is smaller than or equal to the mesh aperture of the filter element, and the mesh aperture of the first filter 7041 is smaller than or equal to the mesh aperture of the second filter 7042.

Further preferably, the mesh aperture of the first filter screen 7041 is equal to the mesh aperture of the second filter screen 7042 and smaller than the mesh aperture of the filter element.

In this embodiment, by providing the first filtering device 703 and the second filtering device 704, both the water and the air drawn from the inner tub 3 can be discharged after two times of filtering, thereby improving the filtering effect.

In some possible embodiments, the first filter 7041 is disposed inside the exhaust port, at least capable of covering the exhaust port, and the second filter 7042 is disposed inside the water outlet, at least capable of covering the water outlet.

In other possible embodiments, the second filter screen 7042 and the first filter screen 7041 are disposed in parallel, the shapes of the second filter screen 7042 and the first filter screen 7041 are adapted to the horizontal cross-sectional shape of the temporary storage cavity 701, the second filter screen 7042 and the first filter screen 7041 are embedded in the temporary storage cavity 701, and the peripheral walls of the second filter screen 7042 and the first filter screen 7041 are mounted on the inner wall of the temporary storage cavity 701 in any manner such as a buckle, a slide rail, a screw, a bolt, etc.

Preferably, in this embodiment, the preset water level in the temporary storage cavity 701 is set below the first filter screen 7041.

Further preferably, in this embodiment, the suction port of the temporary storage cavity 701 is disposed between the first filter screen 7041 and a preset water level in the temporary storage cavity 701, or the suction port is disposed below the first filter screen 7041 and at a level with the preset water level.

The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present invention can be further combined or replaced by equivalent embodiments within the scope of the technical proposal of the present invention without departing from the scope of the technical proposal of the present invention.

Claims

1.A washing machine, comprising:

An inner tub (3);

the negative pressure assembly (7) comprises a temporary storage cavity (701) communicated with the inner barrel (3) and an air pump (702) arranged at the downstream of the temporary storage cavity (701);

The device is characterized in that a filtering device is arranged between the air pump (702) and the inner barrel (3).

2. The washing machine as claimed in claim 1, wherein the filtering means comprises:

The first filtering device (703) is arranged between the temporary storage cavity (701) and the inner barrel (3) and is used for filtering thread scraps;

And a second filter device (704) arranged inside the temporary storage cavity (701).

3. A washing machine as claimed in claim 2, characterized in that,

The temporary storage cavity (701) comprises a suction port used for being communicated with the inner barrel (3), an exhaust port used for being communicated with the air pump (702) and a water outlet used for being communicated with the drainage pipeline (110);

The exhaust port is arranged at the top of the temporary storage cavity (701), the water outlet is arranged at the bottom of the temporary storage cavity (701), and the suction port is arranged in the middle of the temporary storage cavity (701).

4. A washing machine according to claim 3, characterized in that the second filtering means (704) comprise a first filter screen (7041) arranged between the suction opening and the evacuation opening;

the first filter screen (7041) is arranged below the exhaust port and close to the exhaust port.

5. The washing machine as claimed in claim 4, further comprising:

A drain valve (111) provided between the first filtering device (703) and the inner tub (3);

the water level sensor is arranged in the temporary storage cavity (701) and is communicated and connected with the drain valve (111) and the air pump (702).

6. The washing machine according to claim 5, characterized in that the suction opening is provided below the first filter screen (7041), close to the first filter screen (7041);

7. A washing machine according to any one of claims 4 to 6, characterized in that the second filtering means (704) further comprise a second filter screen (7042) arranged between the suction opening and the water outlet.

8. The washing machine according to claim 7, characterized in that the mesh aperture of the first filter (7041) is smaller than or equal to the mesh aperture of the second filter (7042).

9. A washing machine as claimed in claim 8, wherein,

The first filter device (703) comprises a filter cavity and a filter element arranged in the filter cavity, and the mesh aperture of the filter element is larger than or equal to that of the second filter screen (7042).

10. A control method of a washing machine as claimed in any one of claims 1 to 9, comprising the steps of:

The air pump (702) operates to suck water and air in the inner barrel (3);

when the water level in the temporary storage cavity (701) rises to a preset water level, the water discharge valve (111) is closed, and the air pump (702) is closed or reversely operated.