CN111560738A

CN111560738A - Washing machine

Info

Publication number: CN111560738A
Application number: CN201910111522.1A
Authority: CN
Inventors: 宋秀顺; 刘庆; 刘尊安; 姜同春; 王玉倩; 赵成龙
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Co Ltd
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2020-08-21
Anticipated expiration: 2039-02-12
Also published as: CN111560738B

Abstract

The invention provides a washing machine, which comprises an inner barrel capable of containing water during washing and a water collecting device for collecting water drained from the inner barrel, wherein a drain hole is formed in the bottom of the inner barrel, a locking and plugging device is arranged on the water collecting device, the locking and plugging device comprises a locking component, a plugging component and a driving component, the locking component and the plugging component are driven by the same driving component, and the driving component sequentially drives the locking component to act to lock the inner barrel and the plugging component to act to plug the drain hole. The locking part and the plugging part are driven by the same driving part, so that the using number of parts is reduced, the occupied space and cost are reduced, and the stability of the washing machine is improved.

Description

Washing machine

Technical Field

The invention relates to the field of clothes treatment equipment, in particular to a washing machine.

Background

In order to prevent the inner and outer barrels of the washing machine from having much dirt and easily polluting clothes, the washing machine with the non-porous inner barrel is designed in the prior art, the inner barrel of the washing machine is a water containing barrel, only the upper part of the inner barrel is provided with a dewatering hole, and no water exists between the inner and outer barrels of the washing machine in the washing process, so that the dirt accumulated between the inner and outer barrels is prevented from polluting, then the locking mechanism and the plugging mechanism are respectively arranged in the prior art in order to realize the function, the locking mechanism and the plugging mechanism are respectively designed to work independently, when the drainage hole of the inner barrel needs to be plugged, a driving part of the locking mechanism drives the locking mechanism to lock the inner barrel, so that the plug part of the plugging mechanism is opposite to the drainage hole at the bottom of the inner barrel, and then the plugging mechanism is controlled to plug the. However, in this solution, the locking mechanism and the plugging mechanism are two independent parts, each of which requires a set of control element, and therefore, the structure is complex, the cost is high, and the control is also required sequentially.

The invention is therefore set forth in this light.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a washing machine, wherein a locking part and a plugging part of the washing machine are driven by the same driving part, so that the using number of parts is reduced, the occupied space and cost are reduced, and the stability of the washing machine is improved.

In order to realize the purpose, the invention adopts the following technical scheme:

a washing machine comprises an inner barrel capable of containing water during washing and a water collecting device used for collecting water drained from the inner barrel, wherein a water draining hole is formed in the bottom of the inner barrel, a locking and plugging device is arranged on the water collecting device and comprises a locking component, a plugging component and a driving component, the locking component and the plugging component are driven by the same driving component, and the driving component sequentially drives the locking component to act to lock the inner barrel and the plugging component to act to plug the water draining hole.

In the scheme, the locking component and the plugging component of the locking plugging device are driven by the same driving component, so that the using number of parts is reduced, the occupied space and cost are reduced, and the stability of the washing machine is improved.

Preferably, the driving component comprises a driving mechanism and a transmission mechanism in transmission connection with the driving mechanism, and the locking component and the plugging component are in transmission connection with the transmission mechanism, so that the locking component firstly locks the inner barrel and the plugging component then plugs the water drainage hole in the process of driving the transmission component to move by the driving mechanism.

Preferably, the transmission mechanism comprises a transmission rod, the transmission rod can penetrate through the locking component in a sliding mode to be connected with the blocking component, the locking component is connected with the transmission rod through a first buffer piece, the first buffer piece drives the locking component to move towards the inner barrel in the ascending process of the transmission rod, the transmission rod continues to ascend until the locking component locks the inner barrel, the first buffer piece is compressed, and the transmission rod further drives the blocking component to move towards the water drainage hole to block the water drainage hole.

In the scheme, the transmission rod penetrates through the locking component and can be in sliding fit, so that after the locking component rises to lock the inner barrel to stop moving, the first buffer piece can be compressed again, and the transmission rod can further drive the blocking component to move upwards to block the water drainage hole of the washing machine.

Preferably, a first stop plate is fixedly arranged on the transmission rod, the position of the first stop plate is lower than that of the locking component, the first buffer piece is arranged between the first stop plate and the locking component in an elastic deformation mode, and the transmission rod penetrates through a rod section of the locking component and is rigidly connected with the plugging component or is connected with the plugging component through a second buffer piece.

In the scheme, the transmission rod is connected with the blocking component through the buffer piece, so that the blocking component can be used for stably blocking the water drainage hole of the inner barrel, and the washing water is prevented from leaking.

Preferably, a second stop plate is arranged on a rod section of the transmission rod penetrating through the locking component, the position of the second stop plate is lower than that of the blocking component, and the second buffer piece is arranged between the second stop plate and the blocking component in an elastic deformation mode.

Preferably, the first buffer part and the second buffer part are springs, the transmission rod penetrates through the two springs, a movable channel is arranged in the plugging part, and the top end of the transmission rod can be movably arranged in the movable channel up and down.

In the above scheme, the first buffer part and the second buffer part are both provided with the springs, and the transmission rod penetrates through the two springs, so that the space is saved.

Preferably, the locking and blocking device comprises a first shell with an open top, the locking part comprises a second shell with an open top, the second shell can be movably arranged in the first shell up and down, the top of the second shell is provided with a positioning column, and the blocking part is arranged in the second shell; the transfer line is slidable in proper order and passes the diapire of first casing diapire and second casing and connect the shutoff part, first bolster setting is in first casing, and first backstop and second casing are connected respectively at both ends, the second bolster sets up in the second casing, and second backstop and shutoff part are connected respectively at both ends.

In the lifting process of the transmission rod, the first buffer piece drives the second shell to lift until the positioning column at the top of the second shell is inserted at the bottom of the inner barrel, the inner barrel is locked, the transmission rod continues to lift, the first buffer piece is compressed, and the second buffer piece lifts to drive the blocking component to move towards the water drainage hole to block the water drainage hole.

Preferably, the locking and plugging device comprises a first limiting part, a first limiting block is arranged on the locking part, when the transmission rod is limited on the first limiting part in the ascending process, the locking part contacts and locks the inner barrel, the transmission rod continuously ascends, the first buffer part is further compressed, and pushes the locking part upwards, so that the locking part keeps the state of locking the inner barrel.

Preferably, the locking and plugging device comprises a second limiting part, a second limiting block is arranged on the plugging component, in the lifting process of the transmission rod, when the second limiting block is limited on the second limiting part, the plugging component plugs the drainage hole, the transmission rod continues to lift, the second buffer part is further compressed, and the plugging component is pushed upwards to enable the plugging component to keep a state of plugging the drainage hole.

In the above scheme, through the design of the first limiting part and the second limiting part, the locking and plugging device is stable in overall structure, and all the components are integrally matched in a rotating manner to prevent the components from being separated from each other. In addition, the first limiting part and the second limiting part are arranged to be matched with the locking component and the plugging component respectively, the two buffering parts can enable the locking component to be in a locking state stably, and the plugging component can be in a plugging state stably.

Preferably, be provided with on the first shells inner wall first spacing portion, the second casing to first shells inner wall one side protrusion is provided with first stopper, second shells inner wall on be provided with the spacing portion of second, the shutoff part to second shells inner wall one side protrusion is provided with the second stopper.

Preferably, the driving mechanism comprises a driving motor and a turntable connected with the driving motor, the transmission mechanism comprises a connecting rod and a transmission rod, one end of the connecting rod is rotatably connected with the turntable, the other end of the connecting rod is rotatably connected with the transmission rod, the motor rotates to drive the turntable to rotate, the turntable rotates to drive the connecting rod to rotate, the connecting rod rotates to drive the transmission rod to move, so that the transmission rod sequentially drives the locking component to lock the inner barrel, and the plugging component plugs the drainage hole.

After the technical scheme of the invention is adopted, the following beneficial effects are brought:

the washing machine comprises an inner barrel capable of containing water during washing and a water collecting device for collecting water drained from the inner barrel, wherein the bottom of the inner barrel is provided with a water draining hole, the water collecting device is provided with a locking and plugging device, the locking and plugging device comprises a locking component, a plugging component and a driving component, the locking component and the plugging component are driven by the same driving component, and the driving component sequentially drives the locking component to act to lock the inner barrel and the plugging component to act to plug the water draining hole. The locking part and the plugging part are driven by the same driving part, so that the using number of parts is reduced, the occupied space and cost are reduced, and the stability of the washing machine is improved.

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

Drawings

FIG. 1: schematic diagram of a prior art washing machine;

FIG. 2: the invention locks the initial state diagram of the plugging device;

FIG. 3: the invention locks the state diagram of the inner barrel of the plugging device;

FIG. 4: the invention discloses a state diagram for blocking a water drainage hole of an inner barrel by a locking and blocking device.

Wherein: 11. a turntable; 12. a connecting rod; 13. a transmission rod; 20. a first housing; 21. a first stopper plate; 22. a first buffer member; 23. a first limiting part; 30. a second housing; 31. a first stopper; 32. a second limiting part; 33. a positioning column; 40. a plugging member; 41. a second limiting block; 42. a second buffer member; 43. a second stopper plate.

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

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the prior imperforate inner tub washing machine comprises an inner tub and an outer tub, wherein the inner tub has no water leakage holes communicated with the outer tub, the bottom of the inner tub is provided with water drainage holes, the upper part of the inner tub is provided with a circle of dewatering holes, the water drainage holes are closed during washing, only water exists in the inner tub, no water exists between the inner tub and the outer tub, after washing is finished, the water drainage holes are opened, washing water in the inner tub is drained from the water drainage holes, during dewatering, the inner tub rotates, water coming out of clothes rises along the tub wall under the action of centrifugal force, the water is drained from the inner tub to between the inner tub and the outer tub through the dewatering holes in the upper part of the inner tub, and then is drained through the water drainage holes in the; in the process of draining and/or dewatering, the drain hole is opened, impurities such as washing water in the inner barrel and sand washed out of clothes are drained to the outer barrel from the drain hole at the lower part, water in the clothes is drained to the outer barrel from the dewatering hole at the upper part of the inner barrel during dewatering, and the water is directly drained out of the washing machine from the drain hole and the drain pipe at the bottom of the outer barrel, so that quick drainage and good drainage and pollution discharge effects are realized. In order to realize this function, the conventional washing machine is provided with a drainage control mechanism (see label a) for controlling the opening/closing of the drainage hole at the bottom of the drainage hole, the drainage control mechanism (see label a) controls the closing of the drainage hole during water intake and washing, and the drainage control mechanism controls the opening of the drainage hole during drainage and dehydration. The bottom of the inner barrel is additionally provided with a locking structure (see a mark B), the drainage control mechanism is arranged on the outer barrel, during dehydration, the inner barrel rotates, when the drainage hole needs to be closed by the drainage control mechanism, the positions of the drainage hole and the inner barrel are not necessarily in the same position, the locking structure can firstly position the inner barrel to the drainage hole and correspond to the drainage control mechanism, then the inner barrel is locked, and the drainage control mechanism seals the drainage hole. However, in this solution, the drainage control mechanism and the locking structure are two independent parts, each of which requires a set of control element, and the structure is complex, the cost is high, and the control is also required sequentially, therefore, the existing imperforate inner tub washing machine is easy to malfunction and the working stability of the washing machine is reduced because the locking and blocking structure is complex and there are many parts.

Referring to fig. 2-4, the invention provides a washing machine, comprising an inner barrel capable of containing water during washing and a water collecting device for collecting water drained from the inner barrel, wherein the bottom of the inner barrel is provided with a water draining hole, the water collecting device is provided with a locking and blocking device, the locking and blocking device comprises a locking component, a blocking component 40 and a driving component, the locking component and the blocking component 40 are driven by the same driving component, the driving component drives the locking component to act to lock the inner barrel, and the blocking component 40 acts to block the water draining hole in sequence. In the invention, the locking part of the locking plugging device and the plugging part 40 are driven by the same driving part, so that the using number of parts is reduced, the occupied space and cost are reduced, and the stability of the washing machine is improved.

The driving component comprises a driving mechanism and a transmission mechanism in transmission connection with the driving mechanism, and the locking component and the plugging component 40 are in transmission connection with the transmission mechanism, so that the locking component firstly locks the inner barrel and the plugging component 40 plugs the water drainage hole in the process of driving the transmission component to move by the driving mechanism. The transmission mechanism comprises a transmission rod 13, the transmission rod 13 can penetrate through the locking part in a sliding mode to be connected with the blocking part 40, the locking part is connected with the transmission rod 13 through a first buffer piece 22, in the process that the transmission rod 13 ascends, the first buffer piece 22 drives the locking part to move towards the inner barrel until the locking part locks the inner barrel, the transmission rod 13 continues to ascend, the first buffer piece 22 is compressed, and the transmission rod 13 further drives the blocking part 40 to move towards the water drainage hole to block the water drainage hole. The transmission rod 13 passes through the locking component and is in sliding fit, so that after the locking component is lifted to lock the inner barrel to stop moving, the first buffer piece 22 can be compressed again, and the transmission rod 13 can further drive the blocking component 40 to move upwards to block the water drainage hole of the washing machine.

In a preferred scheme, the top locking end of the locking component is higher than the top blocking end of the blocking component 40, so that the locking component firstly locks the inner barrel and then the blocking component 40 blocks the corresponding water drainage hole in the transmission process of the transmission mechanism.

Specifically, a first stopper 21 is fixedly arranged on the transmission rod 13, the position of the first stopper 21 is lower than that of the locking component, the first buffer 22 is elastically deformed and arranged between the first stopper 21 and the locking component, and the transmission rod 13 penetrates through a rod section of the locking component and is rigidly connected with the blocking component 40 or is connected with the blocking component through a second buffer 42. The driving rod 13 and the plugging component 40 are connected through a buffer, which is beneficial for the plugging component 40 to stably plug the water drainage hole of the inner barrel and prevent the washing water from leaking, of course, the driving rod 13 and the plugging component 40 can be rigidly connected. In this case, if the plugging member 40 has a certain elasticity, the plugging member 40 is elastically deformed when the plugging member 40 abuts on the water drain hole, and a good plugging effect can be obtained.

Preferably, a second stop plate 43 is disposed on the rod section of the transmission rod 13 passing through the locking component, the second stop plate 43 is located lower than the blocking component 40, and the second buffer 42 is disposed between the second stop plate 43 and the blocking component 40 in an elastically deformed manner.

Preferably, the first buffer member 22 and the second buffer member 42 are both springs, the transmission rod 13 penetrates through the two springs, a movable channel is arranged in the plugging member 40, and the top end of the transmission rod 13 is movably arranged in the movable channel up and down. The first buffer member 22 and the second buffer member 42 are both provided with springs, so that the transmission rod 13 penetrates through the two springs, the space is saved, moreover, the movable channel is arranged on the plugging member 40, the top end of the transmission rod 13 moves upwards along the movable channel in the rising process, the spring is favorable for providing elastic force, and the stability of the plugging member 40 for plugging the inner barrel water drain hole is improved.

In a preferred scheme, in order to improve the stability of the whole structure, the locking and blocking device comprises a first shell 20 with an open top, the locking part comprises a second shell 30 with an open top, the second shell 30 is movably arranged in the first shell 20 up and down, a positioning column 33 is arranged at the top of the second shell 30, and the blocking part 40 is arranged in the second shell 30; the transmission rod 13 sequentially and slidably penetrates through the bottom wall of the first shell 20 and the bottom wall of the second shell 30 to be connected with the blocking component 40, the first buffer 22 is arranged in the first shell 20, two ends of the first buffer are respectively connected with the first stop plate 21 and the second shell 30, the second buffer 42 is arranged in the second shell 30, and two ends of the second buffer are respectively connected with the second stop plate 43 and the blocking component 40.

In the process of lifting the transmission rod 13, the first buffer piece 22 drives the second shell 30 to lift until the positioning column 33 at the top of the second shell 30 is inserted at the bottom of the inner barrel, the inner barrel is locked, the transmission rod 13 continues to lift, the first buffer piece 22 is compressed, and the second buffer piece 42 lifts to drive the blocking component 40 to move towards the water drainage hole to block the water drainage hole.

The locking and plugging device comprises a first limiting part 23, a first limiting block 31 is arranged on the locking part, when the transmission rod 13 is limited on the first limiting part 23 in the ascending process, the locking part contacts and locks the inner barrel, the transmission rod 13 continuously ascends, the first buffer piece 22 is further compressed, and pushes the locking part upwards, so that the locking part keeps the state of locking the inner barrel.

Preferably, the locking and blocking device comprises a second limiting part 32, a second limiting block 41 is arranged on the blocking component 40, and when the second limiting block 41 is limited on the second limiting part 32 in the ascending process of the transmission rod 13, the blocking component 40 blocks the drainage hole, the transmission rod 13 continues to ascend, the second buffer member 42 is further compressed, and pushes the blocking component 40 upwards, so that the blocking component 40 keeps the state of blocking the drainage hole.

Through the design of the first limiting part 23 and the second limiting part 32, the locking and plugging device is stable in overall structure, all the components are matched into a whole, and the components are prevented from being separated from each other. In addition, by providing the first stopper portion 23 and the second stopper portion 32 to be engaged with the locking member and the blocking member 40, respectively, the two buffers can respectively bring the locking member into a locked state and the blocking member 40 into a blocked state.

Specifically, be provided with on the first casing 20 inner wall first spacing portion 23, second casing 30 to first casing 20 inner wall one side protrusion is provided with first stopper 31, second casing 30 inner wall on be provided with second spacing portion 32, shutoff component 40 to second casing 30 inner wall one side protrusion is provided with second stopper 41.

The structure of the driving component of the present invention is provided below, the driving component includes a driving mechanism and a transmission mechanism in transmission connection with the driving mechanism, wherein the driving mechanism includes a driving motor and a rotating disc 11 in driving connection with the driving motor, the transmission mechanism includes a connecting rod 12 and a transmission rod 13, one end of the connecting rod 12 is rotatably connected to the rotating disc 11, the other end is rotatably connected to the transmission rod 13, the transmission rod 13 passes through the first housing 20 and is slidably engaged with the through hole of the first housing 20, therefore, the motor rotates to drive the rotating disc 11 to rotate, the rotating disc 11 rotates to drive the connecting rod 12 to rotate, the connecting rod 12 rotates to drive the transmission rod 13 to move up and down, so that the transmission rod 13 sequentially drives the locking component to lock the inner barrel, and the plugging component.

Referring to fig. 1-3, the locking occlusion device of the present invention comprises three operational states: referring to fig. 1, an initial state is shown: is the default state of the washing machine, and the locking part and the blocking part 40 are both in the non-working state. Referring to fig. 2, in a state where the inner tub is locked: from the initial state, the driving motor is energized and then moves clockwise, the connecting rod 12 drives the transmission rod 13 to move upwards, the first limiting block 31 is abutted by the first limiting part 23 in the moving process, the first buffering part 22 continues to move upwards, the first buffering part 22 is compressed to generate elastic force to fix the positioning column 33, and the positioning column 33 can act to fix the upper inner barrel to prevent left and right movement. Referring to fig. 3, in a sealing state: from the locking state shown in fig. 2, the driving motor continues to move clockwise, the second stopper 41 reaches and abuts against the second stopper 32, the second buffer 42 compresses to generate elastic force to fix the blocking component 40, and in this state, after the positioning post 33 is positioned, the blocking component 40 can generate a sealing effect to prevent water leakage from above.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A washing machine comprises an inner barrel capable of containing water during washing and a water collecting device used for collecting water drained from the inner barrel, wherein the bottom of the inner barrel is provided with a water draining hole.

2. The washing machine as claimed in claim 1, wherein the driving member includes a driving mechanism and a transmission mechanism in transmission connection with the driving mechanism, and the locking member and the blocking member are both in transmission connection with the transmission mechanism, so that the locking member locks the inner tub first and blocks the water discharge hole after the blocking member during the movement of the driving mechanism driving the transmission mechanism.

3. The washing machine as claimed in claim 2, wherein the driving mechanism includes a driving rod slidably passing through the locking member to connect with the blocking member, the locking member is connected to the driving rod through a first buffer member, the first buffer member drives the locking member to move towards the inner tub during the lifting of the driving rod until the locking member locks the inner tub, the driving rod continues to lift, the first buffer member is compressed, and the driving rod further drives the blocking member to move towards the drain hole to block the drain hole.

4. A washing machine as claimed in claim 3 wherein a first stop is fixedly mounted on the drive rod and is positioned below the locking element, the first damper is resiliently deformable between the first stop and the locking element, and the drive rod is rigidly connected to the blocking element through the rod section of the locking element or is connected thereto by a second damper.

5. A washing machine as claimed in claim 4 wherein the drive link is provided with a second stop at a portion of the link which extends through the locking element, the second stop being positioned below the blocking element, the second bumper being resiliently deformable between the second stop and the blocking element.

6. A washing machine as claimed in claim 4 or 5 wherein the first and second dampers are both springs, the drive rod extends through both springs, a movable passage is provided in the blocking member, and the top end of the drive rod is movably mounted in the movable passage.

7. A washing machine as claimed in any one of claims 4 to 6 wherein the locking and blocking device comprises a first housing with an open top, the locking member comprises a second housing with an open top, the second housing is movably disposed within the first housing, the top of the second housing is provided with the locating post, and the blocking member is disposed within the second housing; the transmission rod sequentially penetrates through the bottom wall of the first shell and the bottom wall of the second shell in a sliding manner to be connected with the plugging component, the first buffer piece is arranged in the first shell, two ends of the first buffer piece are respectively connected with the first stop plate and the second shell, the second buffer piece is arranged in the second shell, and two ends of the second buffer piece are respectively connected with the second stop plate and the plugging component;

8. The washing machine as claimed in any one of claims 1 to 7, wherein the locking and blocking device includes a first stopper portion, the locking member is provided with a first stopper, the first stopper portion is stopped by the first stopper portion during the ascending of the driving lever, the top end of the locking member contacts and locks the inner tub, the driving lever continues to ascend, the first buffer member is further compressed, and pushes the locking member upward so that the locking member maintains the state of locking the inner tub;

preferably, the locking and plugging device comprises a second limiting part, a second limiting block is arranged on the plugging component, in the lifting process of the transmission rod, the second limiting block is limited on the second limiting part and plugs the drain hole, the transmission rod continues to lift, the second buffer part is further compressed, and the plugging component is pushed upwards, so that the plugging component keeps a state of plugging the drain hole.

9. The washing machine according to claim 8, wherein the first casing inner wall is provided with the first limiting portion, the second casing is provided with a first limiting block protruding towards one side of the first casing inner wall, the second casing inner wall is provided with the second limiting portion, and the blocking member is provided with a second limiting block protruding towards one side of the second casing inner wall.

10. A washing machine as claimed in any one of claims 2 to 9 wherein the drive mechanism comprises a drive motor and a rotatable plate connected to the drive motor, the drive mechanism comprises a connecting rod and the transmission rod, one end of the connecting rod is rotatably connected to the rotatable plate, the other end of the connecting rod is rotatably connected to the transmission rod, the motor rotates the rotatable plate, the rotation of the rotatable plate rotates the connecting rod, the rotation of the connecting rod rotates the transmission rod, so that the transmission rod in turn drives the locking member to lock the inner tub, and the blocking member blocks the drainage hole.