A washing machine

Abstract

The present invention provides a washing machine, comprising an inner barrel that can independently hold washing water during washing, a drain port is arranged at the bottom of the inner barrel, and a drainage sealing device is also provided, the drainage sealing device comprises a sealing mechanism, the sealing mechanism comprises a blocking component arranged at the drain port, and the blocking component can reciprocate laterally along the outer wall surface of the bottom of the inner barrel to open / close the drain port. The drainage sealing device of the hole-free inner barrel washing machine of the present invention reciprocates laterally when opening the drain port, and is easier to open from the force mode, has a simple structure, and is easy to implement.

Description

Technical Field

[0001] The present invention relates to the technical field of self-cleaning washing machines, and in particular to a washing machine. Background Art

[0002] Existing washing machines, such as Figure 1 As shown, the structure of a washing machine generally includes two parts, an inner barrel and an outer barrel 1. The inner barrel and the outer barrel 1 are connected, a dehydration hole is provided on the inner barrel for dehydration, and the outer barrel 1 is closed as a water storage barrel. In this way, when the washing machine is working, the area between the inner barrel and the outer barrel 1 is full of water. During the long-term use and operation of the washing machine, the area between the inner barrel and the outer barrel 1 will be covered with dirt and lint in the water. After years of use, bacteria and odor will be generated, which will have a great impact on the washing effect and user experience.

[0003] In addition, the impeller 3 and the barrel bottom 4 of the existing fully automatic impeller washing machine are driven by different driving shafts, and the impeller 3 is rotatable relative to the barrel bottom 4. Therefore, there is a gap between the impeller 3 and the barrel bottom 4. In addition, the bottom of the impeller 3 generally has more reinforcing ribs. As the washing machine is used for a longer time, dirt and grime are likely to accumulate between the impeller 3 and the barrel bottom 4.

[0004] In order to solve the problem of contamination of the inner and outer barrels caused by water filling the space between the inner and outer barrels, a new type of washing machine is available, which can seal the inner and outer barrels to prevent the contamination problem. A known solution is to design the inner barrel as a non-porous inner barrel, so that the inner and outer barrels are isolated, and the inner barrel acts as a water storage barrel. At the same time, in order to drain the inner barrel, an external sealing structure is placed on the drain port of the inner barrel to achieve the sealing of the inner barrel. Although the non-porous inner barrel can solve the problem of dirt between the inner and outer barrels, it cannot solve the problem of dirt between the impeller and the bottom of the inner barrel.

[0005] Therefore, the present invention is mainly intended to solve the problem of dirt hiding between the impeller and the bottom of the inner barrel of a fully automatic impeller washing machine. Furthermore, combined with the self-cleaning solution of the hole-free inner barrel, the washing machine can be fully self-cleaned to eliminate dead corners for dirt hiding.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] In order to solve the above problems, the invention aims to provide a washing machine inner drum, specifically, adopting the following technical solutions:

[0008] A washing machine comprises an inner barrel which can independently hold washing water during a washing process, a drain outlet being arranged at the bottom of the inner barrel, and a drain sealing device, the drain sealing device comprising a sealing mechanism, the sealing mechanism comprising a blocking component arranged at the drain outlet, the blocking component being able to reciprocate laterally along the outer wall surface of the bottom of the inner barrel to open / close the drain outlet.

[0009] Furthermore, the blocking component includes a guide slide fixed on the bottom of the inner barrel and a blocking slider that can slide back and forth in the guide slide, and the blocking slider includes a blocking portion that opens / closes the drain outlet during the reciprocating sliding of the blocking slider.

[0010] Furthermore, the sealing mechanism includes an elastic component, one end of which abuts against the guide slide or the bottom of the inner barrel, and the other end abuts against the blocking slider, and the elastic component deforms when the blocking slider slides to a state separated from the drain outlet, providing elastic force for the reset seal of the blocking slider;

[0011] Preferably, the elastic component is initially in a compressed state to keep the blocking slider blocking the drain outlet in a closed state.

[0012] Furthermore, the blocking slider has a drainage channel. In the initial state, the blocking portion of the blocking slider blocks the drainage port to keep it closed. The blocking slider slides along the guide slide until the drainage channel on the blocking slider is connected to the drainage port to drain water.

[0013] Furthermore, N drainage openings are arranged on the bottom of the inner barrel, and the blocking sliding block has N blocking parts corresponding to the N drainage openings one by one and at least (N-1) drainage channels.

[0014] Furthermore, the washing machine includes a water collecting device arranged outside the inner barrel, and the drainage sealing device also includes a driving mechanism, the driving mechanism is installed on the water collecting device corresponding to the sealing mechanism, and the driving mechanism has an output end that can reciprocate:

[0015] During washing or rinsing, the output end of the driving mechanism retracts, the sealing mechanism cooperates with the channel drain port in a sealed manner, and the inner barrel independently holds the washing water; during drainage, the output end of the driving mechanism extends to push the sealing mechanism away and separate it from the channel drain port, and the channel drain port is opened for drainage.

[0016] Furthermore, the driving mechanism includes a power component driving the output end, and the blocking component also includes a matching portion, the matching portion has an inclined cross-section, the output end moves upward and stops on the matching portion, and the output end continues to move upward to squeeze the matching portion to provide driving force for the horizontal movement of the blocking component.

[0017] Furthermore, the output end is a push rod having an inclined end surface. During the upward movement of the push rod, the inclined end surface fits with the inclined cross section to push the horizontal movement of the blocking component to open the drain outlet.

[0018] Furthermore, the washing machine also includes a locking device installed on the water collection device, the locking device has a locking rod that moves up and down, and a locking hole is arranged on the outer wall of the bottom of the inner barrel. After the locking rod moves upward and is inserted into the locking hole to lock the inner barrel, the output end of the driving mechanism extends to push the sealing mechanism away and separate it from the channel drain port, and the channel drain port is opened for drainage.

[0019] Furthermore, the inner barrel includes a barrel bottom and a barrel body, the barrel body having a closed area, the closed area and the barrel bottom together form a water holding chamber that can independently hold washing water, the barrel bottom inner surface is sealed or integrally formed with a barrel bottom protrusion protruding toward the interior of the inner barrel, and / or the barrel body inner surface is sealed or integrally formed with a barrel body protrusion protruding toward the interior of the inner barrel.

[0020] The inner barrel of the washing machine of the present invention has a closed barrel body design so that the inner barrel can independently hold washing water during washing / rinsing, thereby avoiding water accumulation between the inner barrel and the outer barrel and solving the problem of dirt and grime accumulating between the inner barrel and the outer barrel.

[0021] The inner barrel of the washing machine of the present invention eliminates the impeller that can rotate relative to the inner barrel, and instead has a barrel bottom protrusion that protrudes toward the inside of the inner barrel sealedly assembled on the inner surface of the barrel bottom or integrally formed therewith, and / or a barrel body protrusion that protrudes toward the inside of the inner barrel sealedly assembled on the inner surface of the barrel body or integrally formed therewith. During washing, the inner barrel rotates to drive the barrel bottom protrusion and / or the barrel body protrusion to drive the water flow and the clothes to move, thereby achieving washing / rinsing.

[0022] The inner barrel of the washing machine of the present invention eliminates the impeller by sealingly assembling on the inner surface of the barrel bottom or integrally forming with a barrel bottom protrusion protruding toward the inside of the inner barrel, and / or sealingly assembling on the inner surface of the barrel body or integrally forming with a barrel body protrusion protruding toward the inside of the inner barrel, thereby solving the problem of dirt easily hiding between the impeller and the barrel bottom, and the barrel bottom protrusion and / or the barrel body protrusion drive the water flow and the clothes to wash / rinse as they move, thereby ensuring the washing effect.

[0023] The drainage sealing device of the hole-free inner barrel washing machine of the present invention reciprocates laterally when the drainage port is opened, and is easier to open in terms of force receiving mode, has a simple structure, and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A simplified structural diagram of an existing fully automatic pulsator washing machine;

[0025] Figure 2 A simplified structural diagram of a washing machine according to a first embodiment of the present invention;

[0026] Figure 3 A front view of the bottom structure of the inner barrel of a washing machine according to a first embodiment of the present invention;

[0027] Figure 4 A top view of the bottom structure of the inner barrel of a washing machine according to a first embodiment of the present invention;

[0028] Figure 5 A schematic structural diagram of a washing machine according to a second embodiment of the present invention (drain outlet closed);

[0029] Figure 6 A schematic structural diagram of a washing machine according to a second embodiment of the present invention (drain outlet open). DETAILED DESCRIPTION

[0030] A washing machine of the present invention is described in detail below with reference to the accompanying drawings:

[0031] Embodiment 1

[0032] like Figure 2-Figure 4 As shown, this embodiment provides an inner barrel of a washing machine, including a barrel bottom 4 and a barrel body 2, wherein the barrel body 2 has a closed area, and the closed area and the barrel bottom 4 together form a water holding chamber that can independently hold washing water, and the inner surface of the barrel bottom 4 is sealed or integrally formed with a barrel bottom protrusion 8 protruding toward the interior of the inner barrel, and / or the inner surface of the barrel body 2 is sealed or integrally formed with a barrel body protrusion 7 protruding toward the interior of the inner barrel.

[0033] The inner barrel of the washing machine of this embodiment has a closed design of the barrel body 2 so that the inner barrel can independently hold washing water during washing / rinsing, avoiding water accumulation between the inner barrel and the outer barrel, and solving the problem of dirt and grime accumulating between the inner barrel and the outer barrel.

[0034] In addition, the inner barrel of the washing machine of this embodiment cancels the impeller that can rotate relative to the inner barrel, and instead seals and assembles the inner surface of the barrel bottom 4 or integrally forms a barrel bottom protrusion 8 protruding toward the inner barrel, and / or seals and assembles the inner surface of the barrel body 2 or integrally forms a barrel body protrusion 7 protruding toward the inner barrel. When washing, the inner barrel rotates to drive the barrel bottom protrusion 8 and / or the barrel body protrusion 7 to drive the water flow and the clothes to move, thereby achieving washing / rinsing. The inner barrel of the washing machine of this embodiment cancels the impeller by sealing and assembling the inner surface of the barrel bottom 4 or integrally forming a barrel bottom protrusion 8 protruding toward the inner barrel, and / or seals and assembles the inner surface of the barrel body 2 or integrally forms a barrel body protrusion 7 protruding toward the inner barrel, thereby solving the problem of easy dirt hiding between the impeller and the barrel bottom 4, and driving the water flow and the clothes to move by the barrel bottom protrusion 8 and / or the barrel body protrusion 7 to achieve washing / rinsing, thereby ensuring the washing effect.

[0035] In this embodiment, the barrel bottom protrusion 8 on the barrel bottom 4 can be a separate component, but it needs to be in sealed contact with the barrel bottom 4 to prevent washing water from entering therebetween, and can also be formed integrally with the barrel bottom 4.

[0036] Similarly, the barrel body protrusion 7 on the barrel body 2 of this embodiment can be a separate component, but it needs to be in sealed contact with the barrel body 2 to prevent washing water from entering between the two, and can also be formed as an integral part of the barrel body 2.

[0037] The barrel bottom protrusion 8 of this embodiment is mainly used to realize the up and down rolling of washing water, driving the up and down movement of clothes, and the barrel body protrusion 7 is mainly used to realize the circumferential rolling of washing water, driving the circumferential movement of clothes. The barrel bottom protrusion 8 and the barrel body protrusion 7 of this embodiment can be set at the same time or one of them can be set selectively. Preferably, the barrel bottom protrusion 8 and the barrel body protrusion 7 are simultaneously set in the inner barrel of the washing machine of this embodiment to enrich the water flow and improve the washing effect.

[0038] like Figure 3 As shown, the barrel bottom protrusion 8 described in this embodiment is formed by an integrally formed structure on the inner surface of the barrel bottom 4, and the barrel bottom protrusion 8 includes at least one, and the barrel bottom protrusion 8 includes an ascending section 12 that gradually rises from the edge of the barrel bottom to the center and a descending section 11 that gradually descends from the center of the barrel bottom to the edge. The structure of the barrel bottom protrusion 8 of this embodiment can make the water flow roll up and down when rotating, and in addition, it can drive the clothes to rise to the highest position along the ascending section 12 and then fall along the descending section 11, so as to beat the clothes to a certain extent and improve the washing effect of the clothes.

[0039] Preferably, the inner surface of the barrel bottom described in this embodiment has a plurality of barrel bottom protrusions 8, and the plurality of barrel bottom protrusions 8 are evenly distributed along the circumference of the barrel bottom, further enhancing the stirring of the water flow and improving the washing effect on the clothes.

[0040] like Figure 4 As shown, in order to achieve drainage of the hole-free inner barrel, a plurality of drainage openings 14 are arranged at the lowest position on the barrel bottom 4 in this embodiment, and the plurality of drainage openings 14 are all distributed inside the same circular ring 13 .

[0041] In this embodiment, multiple drain ports 14 are designed on the bottom 4 of the barrel, and the drain ports 14 can be designed to be very small, which has a certain function of filtering wire scraps during drainage to avoid wire scraps clogging. The multiple drain ports 14 are all distributed inside the same ring 13, mainly to facilitate sealing of the drain ports 14.

[0042] Preferably, the drain port 13 is arranged near the edge of the barrel bottom 4, and at least one drain port 13 is inscribed in the outer circumference of the outer edge of the barrel bottom 4, or the ring 13 is inscribed in the outer circumference of the outer edge of the barrel bottom 4. In this way, the drain port 13 can be ensured to be at the lowest position of the barrel bottom 4, and the water in the inner barrel of the washing machine can be drained to avoid residual water.

[0043] As an implementation of this embodiment, the barrel body protrusion 7 described in this embodiment is formed by an integrally formed structure on the inner surface of the barrel body 2, and the barrel body protrusion 7 is parallel to the central axis of the inner barrel. The barrel body protrusion 7 of this embodiment is integrally formed by the barrel body 2, avoiding a gap between the two when assembled, and there is no need to consider the sealing problem, which makes assembly simpler and completely eliminates the problem of dirt hiding.

[0044] Preferably, the inner surface of the barrel body 2 has a plurality of barrel body protrusions 7, and the plurality of barrel body protrusions 7 are evenly distributed along the circumference of the barrel body 2, so as to further enhance the stirring of the water flow and improve the washing effect on the clothes.

[0045] The inner drum of the washing machine of this embodiment rotates during the washing and dehydration processes. Therefore, the position of the drain port 13 in the inner drum is uncertain as the inner drum rotates. In order to ensure the accurate sealing and opening of the drain port, a locking hole for cooperating with the locking mechanism to lock the inner drum is provided on the outer wall of the drum bottom 4 of this embodiment. In this way, the inner drum is locked to a certain position through the cooperation of the locking mechanism and the locking hole, ensuring that the drain port 13 is opened at the same position.

[0046] The barrel bottom 4 of this embodiment is formed into a sealing structure through structural matching or integral molding with the barrel body 2.

[0047] A dehydration hole is arranged at the upper part of the closed area of ​​the barrel body 2 of the present embodiment, and the position of the dehydration hole is higher than the highest water level that can be held in the inner barrel. In this way, the washing water is only inside the inner barrel during washing / rinsing. During dehydration, the inner barrel rotates at high speed, and the water in the inner barrel rises along the barrel wall under centrifugal force to the dehydration hole and escapes.

[0048] Preferably, the dehydration hole is arranged at the inner barrel mouth. After the balance ring is installed on the inner barrel mouth, the balance ring can hide the dehydration hole to realize a hole-free inner barrel structure in appearance.

[0049] Preferably, the locking hole is a blind hole.

[0050] like Figure 2 As shown, this embodiment also provides a washing machine with an inner barrel, including a driving motor 6. The central axis of the inner barrel is vertically arranged, and the barrel mouth of the inner barrel faces upward. The output shaft 10 of the driving motor 6 is fixedly connected to the barrel bottom 4 of the inner barrel to directly drive the inner barrel to rotate.

[0051] The washing machine of the present invention adopts a mode that the driving motor 6 directly drives the inner tub to rotate, and the reducer is eliminated. The output shaft of the driving motor 6 is installed on the outer tub and can be matched with the outer tub through a bearing.

[0052] The washing machine of the present embodiment adopts a hole-free inner barrel, which can independently hold washing water during washing. Therefore, the outer barrel used for holding water in the existing fully automatic washing machine is no longer needed or can be improved in structure. The washing machine of the present embodiment also includes a water collecting device with an open water collecting chamber, at least the bottom 4 of the inner barrel is arranged in the water collecting chamber, which is used to collect the washing water discharged from the inner barrel; the driving motor 6 is installed at the bottom of the water collecting device, and the output shaft 10 of the driving motor 6 passes through the water collecting device and is directly fixedly connected to the bottom 4 of the inner barrel.

[0053] The main functions of the water collection device of this embodiment are:

[0054] 1. Used to collect the water discharged from the inner barrel and discharge it, including the water discharged from the drain port and the water discharged from the dehydration hole.

[0055] 2. Used for installing the bottom structural parts of the barrel such as the drive motor 6 and the drain valve.

[0056] 3. Used for hoisting the shock-absorbing boom to install the inner barrel.

[0057] Therefore, the water collecting device of this embodiment can select the outer drum 1 of the existing washing machine.

[0058] The output shaft 10 of the driving motor 6 of this embodiment is fixedly connected to the barrel bottom 4 of the inner barrel by fixing screws 9.

[0059] 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 rotational torque to the barrel bottom 4 and causing deformation of the barrel bottom when rotating, a bracket is fixedly installed below the barrel bottom 4. Furthermore, in order to prevent water leakage caused by the direct installation of the bracket and the barrel bottom 4, the present invention changes the installation method of the bracket, cancels the fixing structure of the bracket and the barrel bottom, and designs the lower part of the barrel body 2 to extend downward and protrude from the lower surface of the barrel bottom 4. The bracket is fixedly connected to the lower part of the barrel body 2 by radially installed fixing screws 9, thereby fixing the bracket below the barrel bottom 4.

[0060] Since the speed reduction clutch is removed in the washing machine of this embodiment, the driving motor needs to bear a larger load torque, so a motor with a larger output torque is selected. As an implementation of this embodiment, the driving motor of this embodiment adopts a direct drive motor, and further adopts a direct drive variable frequency motor.

[0061] The washing machine of this embodiment further comprises a drainage sealing device arranged on the water collecting device, and the drainage sealing device comprises a sealing mechanism capable of blocking and sealing the drainage port and a driving mechanism for driving the sealing mechanism to open / close the drainage port.

[0062] The washing machine of this embodiment also includes a locking mechanism, which is arranged on the water collecting device. The locking mechanism has a locking rod that moves up and down. The locking rod rises and is inserted into the locking hole of the inner barrel to lock the inner barrel of the washing machine.

[0063] This embodiment also provides a control method for the washing machine. During the washing process, the washing machine controls the driving motor to drive the inner drum to rotate forward and reversely. During the dehydration process, the washing machine controls the driving motor to drive the inner drum to rotate in one direction at a high speed for dehydration.

[0064] Furthermore, during the washing process, the washing machine controls the inner drum to rotate forwardly at a first acceleration for a first set time, and after the forward rotation is completed, controls the inner drum to rotate reversely at a second acceleration for a second set time, and after the reverse rotation is completed, performs forward rotation again, and repeats the cycle;

[0065] Preferably, as the load of the washing machine increases / decreases, the one-way action time and stop time of the driving motor can be adjusted accordingly, and are positively correlated with the load of the washing machine;

[0066] Preferably, the unidirectional action time of the drive motor is 1.5-5S, and the unidirectional stop time of the drive motor is 1.5-5S;

[0067] Further preferably, the unidirectional action time of the drive motor is 2-4S, and the unidirectional stop time of the drive motor is 2-4S.

[0068] When the washing action starts, the driving motor drives the inner barrel to rotate forward at a high acceleration, and the water flow and clothes move up and down driven by the barrel bottom protrusion 8 on the barrel bottom 4, and move circumferentially driven by the barrel body protrusion 7, so that the up and down movement and circumferential movement are combined to form a three-dimensional washing effect. When the forward action ends, the inner barrel and the water flow have a low forward speed or stop, and then start to rotate in the reverse direction. When the reverse action ends, the inner barrel and the water flow have a low reverse speed or stop, and then start to rotate forward, and the cycle continues.

[0069] The inner drum of the washing machine of this embodiment can also move in only one direction, either forward or reverse.

[0070] Embodiment 2

[0071] like Figure 5 and Figure 6As shown, this embodiment provides a washing machine including an inner barrel which can independently hold washing water during the washing process, a drain outlet 14 is arranged at the bottom 4 of the inner barrel, and also includes a drain sealing device, the drain sealing device includes a sealing mechanism, the sealing mechanism includes a blocking component arranged at the drain outlet, and the blocking component can reciprocate laterally along the outer wall surface of the bottom of the inner barrel to open / close the drain outlet.

[0072] The drainage sealing device of the hole-free inner barrel washing machine of this embodiment reciprocates laterally when the drainage port is opened, which is easier to open from the perspective of force, has a simple structure, and is easy to implement.

[0073] Furthermore, the blocking component described in this embodiment includes a guide slide (not shown) fixed on the bottom of the inner barrel and a blocking slider 32 that can slide back and forth in the guide slide, and the blocking slider 32 includes a blocking portion that opens / closes the drain outlet 14 during the reciprocating sliding of the blocking slider.

[0074] The sealing mechanism described in this embodiment includes an elastic member 27, one end of which is abutted against the guide slide or the bottom of the inner barrel, and the other end is abutted against the blocking slider 32. The elastic member 27 is deformed when the blocking slider 32 slides to a state separated from the drain port 14, providing elastic force for the reset seal of the blocking slider 32.

[0075] Preferably, the elastic component 27 is initially in a compressed state to keep the blocking slider 32 blocking the drain port 14 and keeping it in a closed state.

[0076] Furthermore, the blocking slider 32 has a drainage channel 34. In the initial state, the blocking portion of the blocking slider 32 blocks the drainage port 14 to keep it closed. The blocking slider 32 slides along the guide slide until the drainage channel 34 on the blocking slider 32 is connected to the drainage port 14 for drainage.

[0077] The solution of setting a drainage channel 34 on the blocking slider 32 of this embodiment is more suitable for a method with multiple drainage ports. Specifically, N drainage ports 14 are set on the bottom 4 of the inner barrel, and the blocking slider 32 has N blocking parts corresponding to the N drainage ports 14 and at least (N-1) drainage channels 34.

[0078] The washing machine of this embodiment includes a water collecting device arranged outside the inner barrel, and the drainage sealing device also includes a driving mechanism, which is installed on the water collecting device and corresponds to the sealing mechanism, and the driving mechanism has an output end 29 that can reciprocate:

[0079] During washing or rinsing, the output end 29 of the driving mechanism retracts, the sealing mechanism cooperates with the channel drain port in a sealed manner, and the inner barrel independently holds the washing water; during drainage, the output end 29 of the driving mechanism extends to push the sealing mechanism away from the channel drain port, and the channel drain port is opened for drainage.

[0080] The driving mechanism described in this embodiment includes an output end 29 that can reciprocate up and down and a power component 31 that drives the output end 29. The blocking component also includes a matching portion 33. The matching portion 33 has an inclined cross-section. The output end 29 moves upward and stops on the matching portion 33. The output end 29 continues to move upward to squeeze the matching portion to provide driving force for the horizontal movement of the blocking component.

[0081] The output end 29 is a push rod, which has an inclined end surface. During the upward movement of the push rod, the inclined end surface fits with the inclined cross section to push the blocking component to move horizontally to open the drain outlet.

[0082] The driving mechanism further comprises a reciprocating component 30 which can reciprocate up and down, and the push rod is connected to the reciprocating component 30 .

[0083] Furthermore, a locking hole 16 is provided on the outer wall of the bottom of the inner barrel described in this embodiment, which is used to cooperate with the locking mechanism 17 to lock the inner barrel. The washing machine also includes a locking mechanism installed on the water collection device. The locking mechanism has a locking rod that moves up and down. After the locking rod moves upward and is inserted into the locking hole to lock the inner barrel, the output end of the driving device extends to push open the sealing mechanism for drainage.

[0084] The above embodiments can be tried individually or combined with each other to form more combination solutions.

[0085] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A washing machine, comprising an inner tub that can independently hold washing water during washing, wherein a drain port is provided at the bottom of the inner tub, characterized in that: A plurality of drain ports are arranged at the lowest position of the barrel bottom, and the plurality of drain ports are distributed inside the same circular ring. The drain ports are arranged near the edge of the barrel bottom, and at least one drain port is inscribed in the outer circumference of the barrel bottom edge, or the circular ring is inscribed in the outer circumference of the barrel bottom edge; The washing machine includes a drainage sealing device, the drainage sealing device includes a sealing mechanism, the sealing mechanism includes a blocking component arranged at the drainage port, and the blocking component can reciprocate laterally along the outer wall surface of the bottom of the inner barrel to open or close the drainage port; The washing machine includes a water collecting device arranged outside the inner barrel, and the drainage sealing device also includes a driving mechanism, the driving mechanism is installed on the water collecting device to drive the blocking component to move, the driving mechanism includes an output end that can reciprocate and a power component that drives the output end, and the blocking component includes a matching portion, and the matching portion has an inclined cross section; When draining, the power component drives the output end to extend, move upward and stop on the matching part, and the output end continues to move upward to squeeze the matching part to provide driving force for the horizontal movement of the blocking component, pushing the blocking component to move laterally to open the drain outlet; when washing or rinsing, the output end retracts, the blocking component is reset and sealed with the drain outlet, and the inner barrel independently holds the washing water.

2. The washing machine according to claim 1, characterized in that: The blocking component includes a guide slide fixed on the bottom of the inner barrel and a blocking slider that can slide back and forth in the guide slide. The blocking slider includes a blocking portion that opens or closes the drain port during the reciprocating sliding of the blocking slider.

3. The washing machine according to claim 2, characterized in that: The sealing mechanism includes an elastic component, one end of which stops at the guide slide or the bottom of the inner barrel, and the other end stops at the blocking slider. The elastic component deforms when the blocking slider slides to a state separated from the drain outlet, providing elastic force for the reset seal of the blocking slider.

4. The washing machine according to claim 3, characterized in that: The elastic component is initially in a compressed state to keep the blocking slider blocking the drain port and maintaining the closed state.

5. The washing machine according to claim 2, characterized in that: The blocking slider has a drainage channel. In the initial state, the blocking portion of the blocking slider blocks the drainage port to keep it closed. The blocking slider slides along the guide slide until the drainage channel on the blocking slider is connected to the drainage port to drain water.

6. The washing machine according to claim 5, characterized in that: The bottom of the inner barrel is provided with N drainage openings, and the blocking sliding block has N blocking parts corresponding to the N drainage openings one by one and at least (N-1) drainage channels.

7. The washing machine according to claim 1, characterized in that: The output end is a push rod, which has an inclined end surface. During the upward movement of the push rod, the inclined end surface fits with the inclined cross section to push the blocking component to move horizontally to open the drain outlet.

8. The washing machine according to claim 1, characterized in that: The washing machine also includes a locking device installed on the water collecting device, the locking device has a locking rod that moves up and down, and a locking hole is arranged on the outer wall of the bottom of the inner barrel. After the locking rod moves upward and is inserted into the locking hole to lock the inner barrel, the output end of the driving mechanism extends to push the sealing mechanism away and separate it from the drain port, and the drain port is opened for drainage.

9. The washing machine according to any one of claims 1 to 8, characterized in that: The inner barrel includes a barrel bottom and a barrel body, the barrel body having a closed area, the closed area and the barrel bottom together form a water holding chamber that can independently hold washing water, the inner surface of the barrel bottom is sealed or integrally formed with a barrel bottom protrusion protruding toward the interior of the inner barrel, and / or the inner surface of the barrel body is sealed or integrally formed with a barrel body protrusion protruding toward the interior of the inner barrel.

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