CN112127087A

CN112127087A - Washing machine

Info

Publication number: CN112127087A
Application number: CN201910551418.4A
Authority: CN
Inventors: 刘尊安; 宋秀顺; 杨丽梅
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: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-12-25

Abstract

The invention provides a washing machine, which comprises an inner barrel capable of independently containing washing water in a washing process, wherein a water outlet is formed in the bottom of the inner barrel, the washing machine also comprises a water drainage sealing device, the water drainage sealing device comprises a sealing mechanism, the sealing mechanism comprises a plugging component arranged at the water outlet, and the plugging component can transversely reciprocate along the outer wall surface of the bottom of the inner barrel so as to open/close the water outlet. The drainage sealing device of the imperforate inner barrel washing machine transversely reciprocates when the drainage outlet is opened, is easy to open in a stress mode, has a simple structure and is easy to realize.

Description

Washing machine

Technical Field

The invention relates to the technical field of self-cleaning washing machines, in particular to a washing machine.

Background

As shown in fig. 1, the structure of the conventional washing machine generally includes two parts, i.e., an inner tub and an outer tub 1, the inner tub and the outer tub 1 are communicated with each other, dewatering holes are formed in the inner tub for dewatering, and the outer tub 1 is closed to form a water tub. Like this, washing machine is at the during operation, and the region is full of water between interior bucket and outer bucket 1, and in washing machine long-time use operation process, the region between interior bucket and outer bucket 1 can be covered fully by the dirt and the thread scraps that have in the water, and the use of going up the month can produce bacterium and peculiar smell for a long time, all causes great influence to washing effect and user experience.

In addition, the impeller 3 and the barrel bottom 4 of the existing full-automatic impeller washing machine are driven by different driving shafts, and the impeller 3 can rotate relative to the barrel bottom 4, so that a gap exists between the impeller 3 and the barrel bottom 4, and the bottom of the impeller 3 generally has more reinforcing ribs, so that the problem of dirt collection and dirt collection is easy to occur between the impeller 3 and the barrel bottom 4 along with the increase of the service time of the washing machine.

In order to solve the problem of pollution of an inner barrel and an outer barrel caused by the fact that water is filled between the inner barrel and the outer barrel, the existing novel washing machine can seal the inner barrel and the outer barrel to avoid the pollution problem. The known solution is to design the inner tub as a hole-free inner tub, so that the inner tub is isolated from the outer tub, and the inner tub serves as a water containing tub, and to achieve drainage of the inner tub, the inner tub is supported against a drainage port of the inner tub by an external sealing structure, thereby achieving sealing of the inner tub. Although the inner barrel without holes can solve the problem of dirt between the inner barrel and the outer barrel, the problem of dirt between the impeller and the bottom of the inner barrel cannot be solved.

Therefore, the invention mainly aims to solve the problem of dirt accumulation between the impeller and the barrel bottom of the inner barrel of the full-automatic impeller washing machine, and further, the invention realizes the comprehensive self-cleaning of the washing machine by combining the self-cleaning scheme of the inner barrel without holes, thereby avoiding the dead corners of dirt accumulation.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

In order to solve the above problems, the present invention provides an inner tub of a washing machine, specifically, the following technical solutions are adopted:

a washing machine comprises an inner barrel capable of independently containing washing water in a washing process, a water outlet arranged at the bottom of the inner barrel, and a water drainage sealing device comprising a sealing mechanism, wherein the sealing mechanism comprises a plugging component arranged at the water outlet, and the plugging component can transversely reciprocate along the outer wall surface of the bottom of the inner barrel to open/close the water outlet.

Further, the plugging component comprises a guide slide way fixed on the bottom of the inner barrel and a plugging slide block which can slide in a reciprocating manner and is arranged in the guide slide way, and the plugging slide block comprises a plugging part which opens/closes the water outlet in the reciprocating sliding process of the plugging slide block.

Furthermore, the sealing mechanism comprises an elastic component, one end of the elastic component is abutted against the guide slide way or the bottom of the inner barrel, the other end of the elastic component is abutted against the plugging slide block, and the elastic component deforms when the plugging slide block slides to a state of being separated from the water outlet so as to provide elastic force for the resetting and sealing of the plugging slide block;

preferably, the initial state of the elastic component is in a compressed state so as to keep the blocking slide block to block the water outlet and keep a closed state.

Furthermore, the plugging slide block is provided with a drainage channel, in an initial state, the plugging part of the plugging slide block plugs the drainage port to keep a closed state, and the plugging slide block slides to the drainage channel on the plugging slide block along the guide slide way to be communicated with the drainage port to drain water.

Furthermore, N water discharge openings are formed in the bottom of the inner barrel, and the blocking slide block is provided with N blocking parts corresponding to the N water discharge openings one by one and at least (N-1) water discharge channels.

Further, the washing machine includes a water collecting device disposed outside the inner tub, the drain sealing device further includes a driving mechanism mounted on the water collecting device corresponding to the sealing mechanism, the driving mechanism having an output end capable of reciprocating:

when washing or rinsing, the output end of the driving mechanism retracts, the sealing mechanism is in sealing fit with the water outlet of the channel, and the inner barrel independently contains washing water; when water is drained, the output end of the driving mechanism extends out to push the sealing mechanism away to be separated from the channel water outlet, and the channel water outlet is opened to drain water.

Furthermore, the driving mechanism comprises a power part for driving the output end, the plugging part further comprises a matching part, the matching part is provided with an inclined cross section, the output end moves upwards and stops abutting against the matching part, and the output end continues to move upwards to extrude the matching part to provide driving force for the horizontal movement of the plugging part.

Furthermore, the output end is a top rod, an inclined end face is arranged on the top rod, and in the upward movement process of the top rod, the inclined end face is attached to the inclined section to push the horizontal movement of the plugging part to open the water outlet.

The washing machine further comprises a locking device arranged on the water collecting device, the locking device is provided with a locking rod moving up and down, a locking hole is formed in the outer wall of the bottom of the inner barrel, the locking rod moves up and is inserted into the locking hole to lock the inner barrel, the output end of the driving mechanism extends out to push the sealing mechanism away to be separated from the channel water outlet, and the channel water outlet is opened to drain water.

Further, the inner barrel comprises a barrel bottom and a barrel body, the barrel body is provided with a closed area, the closed area and the barrel bottom jointly form a water containing chamber capable of independently containing washing water, a barrel bottom protruding part protruding towards the inner part of the inner barrel is assembled on the inner surface of the barrel bottom in a sealing mode or integrally formed, and/or a barrel body protruding part protruding towards the inner part of the inner barrel is assembled on the inner surface of the barrel body in a sealing mode or integrally formed.

The inner barrel of the washing machine is sealed, so that the inner barrel can independently contain washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirt storage and dirt collection between the inner barrel and the outer barrel is solved.

The inner barrel of the washing machine provided by the invention is provided with a wave wheel which can rotate relative to the inner barrel, and is changed into a mode that a barrel bottom protruding part protruding towards the inner part of the inner barrel is hermetically assembled or integrally formed on the inner surface of the barrel bottom, and/or a barrel body protruding part protruding towards the inner part of the inner barrel is hermetically assembled or integrally formed on the inner surface of the barrel body, when the washing machine is used for washing, the barrel bottom protruding part and/or the barrel body protruding part is driven by the rotation of the inner barrel to drive water flow and clothes to move along with the rotation.

The inner barrel of the washing machine eliminates the impeller by hermetically assembling or integrally forming the barrel bottom protruding part protruding towards the inner part of the inner barrel on the inner surface of the barrel bottom and/or hermetically assembling or integrally forming the barrel body protruding part protruding towards the inner part of the inner barrel on the inner surface of the barrel body, solves the problem that dirt is easily hidden between the impeller and the barrel bottom, and realizes washing/rinsing by driving water flow and clothes to move along with the barrel bottom protruding part and/or the barrel body protruding part, thereby ensuring the washing effect.

The drainage sealing device of the imperforate inner barrel washing machine transversely reciprocates when the drainage outlet is opened, is easy to open in a stress mode, has a simple structure and is easy to realize.

Drawings

FIG. 1 is a schematic view of a conventional full-automatic pulsator washing machine;

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

FIG. 3 is a front view of a tub bottom structure of an inner tub of a washing machine according to an embodiment of the present invention;

FIG. 4 is a top view of a bottom structure of an inner tub of a washing machine according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the construction of a second washing machine according to the embodiment of the present invention (drain port closed state);

FIG. 6 is a schematic view showing the structure of a washing machine according to the second embodiment of the present invention (drain opening open state).

Detailed Description

A washing machine of the present invention will be described in detail with reference to the accompanying drawings:

example one

As shown in fig. 2 to 4, the present embodiment provides an inner tub for a washing machine, including a tub bottom 4 and a tub body 2, where the tub body 2 has a closed region, the closed region and the tub bottom 4 together form a water containing chamber capable of independently containing washing water, a tub bottom protrusion 8 protruding toward the inside of the inner tub is hermetically fitted or integrally formed on an inner surface of the tub bottom 4, and/or a tub body protrusion 7 protruding toward the inside of the inner tub is hermetically fitted or integrally formed on an inner surface of the tub body 2.

The washing machine inner barrel of the embodiment has the advantages that the barrel body 2 is sealed, so that the inner barrel can independently contain washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirty storage and dirt collection between the inner barrel and the outer barrel is solved.

In addition, the inner barrel of the washing machine of the embodiment cancels a wave wheel which can rotate relative to the inner barrel, and is changed into a barrel bottom protruding part 8 protruding towards the inner barrel in a sealing assembly or an integrated forming mode on the inner surface of the barrel bottom 4, and/or a barrel body protruding part 7 protruding towards the inner barrel in a sealing assembly or an integrated forming mode on the inner surface of the barrel body 2, when washing, the inner barrel rotates to drive the barrel bottom protruding part 8 and/or the barrel body protruding part 7 to drive water flow and clothes to move along with the movement, and washing/rinsing is realized. The inner barrel of the washing machine of the embodiment is provided with the barrel bottom protruding part 8 protruding towards the inner barrel through the sealing assembly or the integral forming on the inner surface of the barrel bottom 4, and/or the barrel body protruding part 7 protruding towards the inner barrel through the sealing assembly or the integral forming on the inner surface of the barrel body 2, so that the impeller is cancelled, the problem that dirt is easily hidden between the impeller and the barrel bottom 4 is solved, and the barrel bottom protruding part 8 and/or the barrel body protruding part 7 drive water flow and clothes to be washed/rinsed along with the movement, and the washing effect is ensured.

The protruding part 8 of the bottom 4 of the tub can be a separate component, but needs to be in sealing contact with the bottom 4 of the tub to prevent the washing water from entering between the two, or can be formed by integrally molding the bottom 4 of the tub.

Similarly, the protruding part 7 of the tub 2 of the present embodiment may be a separate component, but needs to be in sealing contact with the tub 2 to prevent the washing water from entering between the two, and may also be integrally formed by the tub 2.

The barrel bottom bulge 8 of this embodiment mainly is for the upper and lower of realization to the washing water rolls, drives the up-and-down motion of clothing, and the barrel bulge 7 mainly is for the circumference of realization to the washing water rolls, drives clothing circumferential motion. The barrel bottom bulge 8 and the barrel body bulge 7 of the embodiment can be simultaneously arranged and can be alternatively arranged, preferably, the barrel bottom bulge 8 and the barrel body bulge 7 are simultaneously arranged in the washing machine of the embodiment, water flow is enriched, and the washing effect is improved.

As shown in fig. 3, the barrel bottom bulge 8 of the present embodiment is formed by integrally molding the inner surface of the barrel bottom 4, the barrel bottom bulge 8 includes at least one, and the barrel bottom bulge 8 includes a rising section 12 which gradually rises from the edge of the barrel bottom to the center and a falling section 11 which gradually falls from the center of the barrel bottom to the edge. The structure of the barrel bottom protruding part 8 of this embodiment can be so that stir rivers and roll from top to bottom when rotating, in addition, can drive the clothing and fall along descending segment 11 again after ascending segment 12 rises to the highest position to carry out the beat of certain degree to the clothing, promote clothing washing effect.

Preferably, the inner surface of the bottom of the tub described in this embodiment has a plurality of bottom protrusions 8, and the plurality of bottom protrusions 8 are uniformly distributed along the circumference of the bottom of the tub, so as to further enhance the flow of the agitated water and enhance the washing effect on the laundry.

As shown in fig. 4, in this embodiment, in order to realize the drainage of the non-porous inner barrel, a plurality of drainage ports 14 are provided at the lowest position on the barrel bottom 4, and the plurality of drainage ports 14 are distributed in the same ring 13.

In the present embodiment, a plurality of drainage openings 14 are designed on the bottom 4 of the barrel, so that the drainage openings 14 can be designed to be small, and certain thread scraps filtering effect is provided during drainage, thereby avoiding thread scraps blockage. The plurality of water outlets 14 are distributed in the same ring 13, and are mainly convenient for sealing the water outlets 14.

Preferably, the drainage port 13 is arranged on the bucket bottom 4 at a position close to the edge, and at least one drainage port 13 is internally tangent to the outer contour of the edge of the bucket bottom 4, or the ring 13 is internally tangent to the outer contour of the edge of the bucket bottom 4. Therefore, the water outlet 13 is ensured to be positioned at the lowest position of the barrel bottom 4, the water in the inner barrel of the washing machine is drained completely, and the residual water is avoided.

As an embodiment of the present embodiment, the barrel protrusion 7 of the present embodiment is formed by integrally forming the inner surface of the barrel body 2, and the barrel protrusion 7 is parallel to the central axis of the inner barrel. The staving bulge 7 of this embodiment is avoided both assembles to produce the clearance by staving 2 integrated into one piece, need not consider sealed problem, and the assembly is simpler, and stops completely to hide dirty problem.

Preferably, the inner surface of the tub 2 has a plurality of tub protrusions 7, and the plurality of tub protrusions 7 are uniformly distributed along the circumference of the tub 2, so that the stirring water flow is further enhanced, and the washing effect on the laundry is improved.

The inner barrel of the washing machine of the embodiment rotates in the washing and dewatering processes, therefore, the position of the water outlet 13 in the inner barrel is uncertain along with the rotation of the inner barrel, and in order to ensure the accurate sealing and opening of the water outlet, a locking hole for locking the inner barrel by matching with a locking mechanism is arranged on the outer wall of the barrel bottom 4 of the embodiment, so that the inner barrel is locked to a certain position by matching of the locking mechanism and the locking hole, and the water outlet 13 is ensured to be opened at the same position.

The barrel bottom 4 and the barrel body 2 of the embodiment are matched in structure or integrally formed to form a sealing structure.

The upper portion of the closed region of the tub body 2 of this embodiment is provided with a dewatering hole, and the position of the dewatering hole is higher than the highest water level of the inner tub capable of containing water, so that the washing water is only in the inner tub during washing/rinsing, and during dewatering, the inner tub rotates at high speed, and the water in the inner tub rises to the dewatering hole along the tub wall under centrifugal force to be removed.

Preferably, the dehydration hole is arranged at the position of the inner barrel opening, and after the balance ring is arranged on the inner barrel opening, the dehydration hole can be hidden by the balance ring, so that the non-porous inner barrel structure with visual effect is realized.

Preferably, the locking hole is a blind hole.

As shown in fig. 2, the present embodiment also provides a washing machine with an inner tub of the above washing machine, which includes a driving motor 6, wherein the central axis of the inner tub is vertically disposed, the mouth of the inner tub faces upward, and an output shaft 10 of the driving motor 6 is fixedly connected to the bottom 4 of the inner tub to directly drive the inner tub to rotate.

The washing machine of the invention adopts a mode that the driving motor 6 directly drives the inner barrel to rotate, a speed reducer is omitted, and the output shaft of the driving motor 6 is arranged on the outer barrel and is matched with the outer barrel through a bearing.

The washing machine of the embodiment adopts the non-porous inner barrel, and the inner barrel can independently contain washing water during washing, so that the outer barrel for containing water of the existing full-automatic washing machine is not needed any more or can be improved aiming at the structure; the driving motor 6 is arranged at the bottom of the water collecting device, and an output shaft 10 of the driving motor 6 penetrates through the water collecting device to be directly and fixedly connected with the barrel bottom 4 of the inner barrel.

The water collecting device of the embodiment has the following main functions:

1. used for collecting and discharging water discharged from the inner barrel, comprising water discharged from the water discharge port and water removed from the dewatering holes.

2. The mounting device is used for mounting barrel bottom structural members such as a driving motor 6 and a drain valve.

3. The hoisting device is used for hoisting the damping suspender, and the installation of the inner barrel is realized.

Therefore, the water collecting device of the present embodiment can be selected from the outer tub 1 of the existing washing machine.

The output shaft 10 of the driving motor 6 of the embodiment is fixedly connected with the bottom 4 of the inner barrel through a fixing screw 9.

In order to enhance the connection strength between the output shaft 10 and the barrel bottom 4 and prevent the output shaft 10 from directly transmitting the rotating torque to the barrel bottom 4 when rotating to cause the barrel bottom to deform, a bracket is fixedly arranged below the barrel bottom 4, and further, in order to prevent water leakage caused by the direct installation of the bracket and the barrel bottom 4, the invention changes the installation mode of the bracket, cancels the fixing structure of the bracket and the barrel bottom, designs that the lower part of the barrel body 2 extends downwards and protrudes out of the lower surface of the barrel bottom 4, and the bracket is fixedly connected with the lower part of the barrel body 2 through a radially-installed fixing screw 9, thereby fixing the bracket below the barrel bottom 4.

In the washing machine of the present embodiment, the reduction clutch is eliminated, and therefore, the drive motor needs to bear a large load torque, and therefore, a motor having a large output torque is selected. As an implementation manner of this embodiment, the driving motor of this embodiment is a direct-drive motor, and further, a direct-drive variable frequency motor is used.

The washing machine of the embodiment further comprises a drain sealing device arranged on the water collecting device, wherein the drain sealing device comprises a sealing mechanism capable of sealing the drain opening in a blocking manner and a driving mechanism for driving the sealing mechanism to open/close the drain opening.

The washing machine of the embodiment further comprises a locking mechanism, the locking mechanism is arranged on the water collecting device and is provided with a locking rod which moves up and down, and the locking rod ascends and is inserted into a locking hole of the inner barrel to lock the inner barrel of the washing machine.

The embodiment also provides a control method of the washing machine, wherein in the washing process, the washing machine controls the driving motor to drive the inner barrel to rotate in the forward and reverse directions, and in the dehydration process, the washing machine controls the driving motor to drive the inner barrel to rotate in a unidirectional high speed manner for dehydration.

Further, in the washing process, the washing machine controls the inner barrel to rotate forwards for a first set time at a first acceleration, after the forward rotation is finished, the inner barrel is controlled to rotate reversely for a second set time at a second acceleration, and after the reverse rotation is finished, the forward rotation is executed again, so that the circulation is performed;

preferably, as the load of the washing machine increases/decreases, the one-way action time and the stop time of the driving motor can be adjusted along with the increase/decrease of the load of the washing machine, and are in positive correlation with the load of the washing machine;

preferably, the time of the unidirectional action of the driving motor is 1.5-5S, and the time of the unidirectional stop of the driving motor is 1.5-5S;

further preferably, the time of the unidirectional action of the driving motor is 2-4S, and the time of the unidirectional stop of the driving motor is 2-4S.

When the washing action starts, the driving motor drives the inner barrel component to rotate in the forward direction at a high acceleration, the water flow and clothes move up and down under the driving of the barrel bottom protruding part 8 on the barrel bottom 4, and move circumferentially under the driving of the barrel body protruding part 7, so that the up-and-down movement and the circumferential movement are combined to form a three-dimensional washing effect. After the forward motion is finished, the inner barrel and the water flow start to rotate reversely after the forward speed is lower or stopped. After the reverse motion is finished, the inner barrel and the water flow start to rotate in the forward direction after the reverse speed is low or stopped, and the circulation is carried out.

The inner barrel of the washing machine of the embodiment can only move in one direction, and can rotate in both the positive direction and the negative direction.

Example two

As shown in fig. 5 and 6, the present embodiment provides a washing machine including an inner tub capable of independently containing washing water during a washing process, the bottom 4 of the inner tub is provided with a water discharge port 14, and further includes a water discharge sealing device including a sealing mechanism including a sealing member disposed at the water discharge port, the sealing member being capable of reciprocating in a lateral direction along an outer wall surface of the bottom of the inner tub to open/close the water discharge port.

The drainage sealing device of the imperforate inner barrel washing machine of the embodiment moves transversely and reciprocally when the drainage outlet is opened, is easier to open in a stress mode, has a simple structure and is easy to realize.

Further, the plugging member of the present embodiment includes a guide slide (not shown) fixed on the bottom of the inner barrel and a plugging slider 32 reciprocally slidably disposed in the guide slide, and the plugging slider 32 includes a plugging portion for opening/closing the water outlet 14 during reciprocal sliding of the plugging slider.

The sealing mechanism of the embodiment includes an elastic component 27, one end of the elastic component 27 is abutted against the bottom of the guiding slideway or the inner barrel, the other end is abutted against the blocking slider 32, and the elastic component 27 deforms when the blocking slider 32 slides to a state of being separated from the water outlet 14, so as to provide an elastic force for the reset sealing of the blocking slider 32.

Preferably, the elastic member 27 is in a compressed state in an initial state to keep the sealing slider 32 sealing the drain opening 14 in a closed state.

Furthermore, the plugging slider 32 is provided with a drainage channel 34, in an initial state, the plugging part of the plugging slider 32 plugs the drainage port 14 and keeps a closed state, and the plugging slider 32 slides along the guide slide way to the drainage channel 34 on the plugging slider 32 to be communicated with the drainage port 14 for drainage.

The solution of the present embodiment that the blocking slider 32 is provided with the drainage channel 34 is more suitable for the mode with a plurality of drainage openings, specifically, the bottom 4 of the inner barrel is provided with N drainage openings 14, and the blocking slider 32 has N blocking portions corresponding to the N drainage openings 14 one by one and at least (N-1) drainage channels 34.

The washing machine of this embodiment includes a water collecting device provided outside the inner tub, and the drain sealing device further includes a driving mechanism installed on the water collecting device corresponding to the sealing mechanism, the driving mechanism having an output 29 capable of reciprocating:

when washing or rinsing, the output end 29 of the driving mechanism retracts, the sealing mechanism is in sealing fit with the water outlet of the channel, and the inner barrel independently holds washing water; when the water is drained, the output end 29 of the driving mechanism extends out to separate the sealing mechanism from the channel water outlet, and the channel water outlet is opened to drain the water.

The driving mechanism described in this embodiment includes an output end 29 capable of reciprocating up and down and a power component 31 for driving the output end 29, the plugging component further includes a matching portion 33, the matching portion 33 has an inclined cross section, the output end 29 moves upward and stops against the matching portion 33, and the output end 29 continues to move upward to press the matching portion to provide a driving force for the horizontal movement of the plugging component.

The output end 29 is a top rod, an inclined end surface is arranged on the top rod, and the inclined end surface is attached to the inclined section to push the horizontal movement of the plugging part to open the water outlet in the upward movement process of the top rod.

The driving mechanism also comprises a reciprocating part 30 which can reciprocate up and down, and the mandril is connected with the reciprocating part 30.

Furthermore, the outer wall of the bottom of the inner barrel of the embodiment is provided with a locking hole 16 which is used for being matched with a locking mechanism 17 to lock the inner barrel, the washing machine further comprises a locking mechanism which is arranged on the water collecting device, the locking mechanism is provided with a locking rod which moves up and down, the locking rod moves upwards and is inserted into the locking hole to lock the inner barrel, and the output end of the driving device extends out to push the sealing mechanism open to drain water.

The above embodiments can be tried separately or combined with each other to form more combinations.

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 independently containing washing water in a washing process, wherein a water outlet is formed in the bottom of the inner barrel.

2. The washing machine as claimed in claim 1, wherein the blocking member includes a guide rail fixed to the bottom of the inner tub and a blocking slider reciprocally slidably disposed in the guide rail, the blocking slider including a blocking portion for opening/closing the water discharge port during reciprocal sliding of the blocking slider.

3. The washing machine as claimed in claim 2, wherein the sealing mechanism includes an elastic member, one end of the elastic member abuts against the guide slide or the bottom of the inner tub, the other end abuts against the blocking slider, and the elastic member deforms when the blocking slider slides to a state of being separated from the drain opening, to provide an elastic force for the return sealing of the blocking slider;

4. The washing machine as claimed in claim 2, wherein the blocking slider has a drainage channel, and in an initial state, the blocking portion of the blocking slider blocks the drainage port to maintain a closed state, and the blocking slider slides along the guide slide to the drainage channel of the blocking slider to communicate with the drainage port, thereby performing drainage.

5. The washing machine as claimed in claim 4, wherein N drain ports are provided on the bottom of the inner tub, and the plugging slider has N plugging portions corresponding to the N drain ports one to one and at least (N-1) drain passages.

6. A washing machine as claimed in any one of claims 1 to 5, wherein the washing machine comprises a water collection unit provided outside the inner tub, the drain sealing unit further comprises a driving mechanism mounted on the water collection unit corresponding to the sealing mechanism, the driving mechanism having an output end capable of reciprocating:

7. A washing machine as claimed in claim 6 wherein the drive mechanism includes a power member for driving the output, the closure member further including an engagement portion having an inclined cross-section, the output moving upwardly against the engagement portion, the output continuing to move upwardly to press the engagement portion to provide the driving force for horizontal movement of the closure member.

8. The washing machine as claimed in claim 7, wherein the output end is a top bar having an inclined end surface, and the inclined end surface is attached to the inclined section to push the horizontal movement of the blocking member to open the water outlet during the upward movement of the top bar.

9. The washing machine as claimed in claim 6, further comprising a locking unit installed on the water collecting unit, the locking unit having a locking rod moving up and down, the locking hole being formed on an outer wall of a bottom of the inner tub, the locking rod moving up and being inserted into the locking hole to lock the inner tub, the output end of the driving mechanism being protruded to push the sealing mechanism away from the tunnel drain opening, and the tunnel drain opening being opened to drain water.

10. The washing machine as claimed in any one of claims 1 to 9, wherein the inner tub includes a tub bottom and a tub body, the tub body having a closed region which forms a water containing chamber independently containing washing water together with the tub bottom, a tub bottom protrusion protruding toward an inside of the inner tub is hermetically fitted or integrally formed on an inner surface of the tub bottom, and/or a tub body protrusion protruding toward an inside of the inner tub is hermetically fitted or integrally formed on an inner surface of the tub body.