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 drainage mechanism and a sealing mechanism, the drainage mechanism has a drainage channel connected to the drain port, and the sealing mechanism is installed in the drainage channel in an openable and closable manner. The washing machine of the present invention realizes the sealing and opening control of the drain port of the inner barrel without holes by adopting the drainage sealing device, the drainage sealing device comprises a drainage mechanism, and the water in the inner barrel can be introduced from the drain port into the internal drainage channel, and the sealing mechanism can realize the opening and closing control of the drainage channel, therefore, the drainage sealing device can be installed on the drain port as a separate module, and there is no need to consider the sealing assembly of the drain port, and the installation is more convenient.

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, specifically, adopting the following technical solutions:

[0008] A washing machine comprises an inner tub which can independently hold washing water during washing, a drain outlet is arranged at the bottom of the inner tub, and a drain sealing device is also provided. The drain sealing device comprises a drain mechanism and a sealing mechanism. The drain mechanism has a drain channel connected to the drain outlet, and the sealing mechanism is installed in the drain channel in an openable and closable manner.

[0009] Furthermore, it also includes a mounting bracket installed on the drain outlet, and the drainage mechanism is fixedly mounted on the mounting bracket and is sealed and connected to the drain outlet.

[0010] Furthermore, it also includes a drain cover, which includes an end cover part and a connecting part. The end cover part is installed on the drain outlet, and a plurality of drain outlets are arranged on the end cover part. The connecting part is fixedly connected to the mounting bracket.

[0011] Furthermore, the mounting frame is an annular sleeve sleeved on the outer periphery of the drain outlet, the annular sleeve has internal threads inside, and the connecting part is a connecting sleeve connected below the end cover part, and the connecting sleeve has external threads assembled with the internal threads;

[0012] One end of the drainage channel of the drainage mechanism has an internal thread, the length of the connecting sleeve is greater than the length of the annular sleeve, and the portion of the connecting sleeve extending out of the annular sleeve is threadedly connected to the internal thread of the drainage channel.

[0013] Furthermore, an annular groove is arranged on the outer periphery of the drain outlet, and a first sealing ring is arranged between the end cover and the annular groove.

[0014] Furthermore, the drainage channel of the drainage mechanism has an inwardly contracted drainage port, and the sealing mechanism includes a blocking component and a supporting component, the supporting component is fixedly installed in the drainage channel, and the blocking component can be relatively slidably installed on the supporting component:

[0015] During washing or rinsing, the blocking component seals with the channel drain port, and the inner barrel independently holds the washing water; during drainage, the blocking component opens the channel drain port, and the washing water in the inner barrel is discharged.

[0016] Furthermore, the supporting component includes a fixing part and a sleeve part, the fixing part is fixedly installed in the drainage channel and fixedly connected to the sleeve part, and the sleeve part has a hollow slide; the blocking component includes a sealing part and a connecting part, the sealing part is sealed with the channel drainage port, and the connecting part is slidably arranged in the hollow slide of the sleeve part to realize the sealing and separation of the sealing part and the drainage port.

[0017] Furthermore, the sealing mechanism includes an elastic component, one end of the elastic component abuts against the supporting component, and the other end abuts against the blocking component, and the elastic component deforms when the blocking component slides to a state separated from the channel drain port, thereby realizing elastic resetting and sealing of the blocking component;

[0018] Preferably, the initial state of the elastic component is in a compressed state to maintain a sealed fit between the blocking component and the channel drain outlet.

[0019] 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 be extended up and down:

[0020] 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 open the sealing mechanism and separate it from the channel drain port, and the channel drain port is opened for drainage.

[0021] 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.

[0022] 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.

[0023] The washing machine of the present invention realizes the sealing and opening control of the drain port of the non-porous inner drum by adopting a drain sealing device. The drain sealing device includes a drain mechanism, which can guide the water in the inner drum from the drain port to the internal drainage channel. The sealing mechanism can realize the opening and closing control of the drainage channel. Therefore, the drain sealing device can be installed on the drain port as a separate module, and there is no need to consider the sealing assembly of the drain port, which makes the installation easier.

[0024] 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.

[0025] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A simplified structural diagram of an existing fully automatic pulsator washing machine;

[0027] Figure 2 A simplified structural diagram of a washing machine according to a first embodiment of the present invention;

[0028] 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;

[0029] 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;

[0030] Figure 5 A schematic structural diagram of a washing machine according to a second embodiment of the present invention;

[0031] Figure 6 Embodiment 2 of the present invention: washing machine Figure 5 A partial enlarged view of the drain outlet (closed state);

[0032] Figure 7 Embodiment 2 of the present invention: washing machine Figure 5 A partial enlarged view of the drain outlet (open state). DETAILED DESCRIPTION

[0033] A washing machine of the present invention is described in detail below with reference to the accompanying drawings:

[0034] Embodiment 1

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 .

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] The barrel bottom 4 of this embodiment is formed into a sealing structure through structural matching or integral molding with the barrel body 2.

[0050] 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.

[0051] 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.

[0052] Preferably, the locking hole is a blind hole.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] The main functions of the water collection device of this embodiment are:

[0057] 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.

[0058] 2. Used for installing the bottom structural parts of the barrel such as the drive motor 6 and the drain valve.

[0059] 3. Used for hoisting the shock-absorbing boom to install the inner barrel.

[0060] Therefore, the water collecting device of this embodiment can select the outer drum 1 of the existing washing machine.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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;

[0068] 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;

[0069] 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;

[0070] 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.

[0071] 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.

[0072] The inner drum of the washing machine of this embodiment can also move in only one direction, either forward or reverse.

[0073] Embodiment 2

[0074] like Figure 5-Figure 7 As shown, this embodiment provides a washing machine, including an inner barrel that can independently hold washing water during the washing process, a drain port 14 is arranged at the bottom 4 of the inner barrel, and also includes a drain sealing device, the drain sealing device includes a drain mechanism 19 and a sealing mechanism, the drain mechanism 19 is installed on the drain port 14 and has a drain channel connected to the drain port inside, and the sealing mechanism is installed in the drain channel in an openable and closable manner.

[0075] The washing machine of this embodiment realizes the sealing and opening control of the drain outlet of the non-porous inner drum by adopting a drain sealing device. The drain sealing device includes a drain mechanism, which can guide the water in the inner drum from the drain outlet to the internal drainage channel. The sealing mechanism can realize the opening and closing control of the drainage channel. Therefore, the drain sealing device can be installed on the drain outlet as a separate module, and there is no need to consider the sealing assembly of the drain outlet, which makes the installation easier.

[0076] like Figure 6 As shown, the washing machine of this embodiment further includes a mounting bracket 22 mounted on the drain outlet 14 , and the drain mechanism is fixedly mounted on the mounting bracket 22 and is in sealed communication with the drain outlet 14 .

[0077] The washing machine of this embodiment further comprises a drain cover 20 , which comprises an end cover portion and a connecting portion. The end cover portion is mounted on the drain outlet 14 , a plurality of drain outlets are arranged on the end cover portion, and the connecting portion is fixedly connected to the mounting bracket 22 .

[0078] In this embodiment, a drain cover 20 is installed on the drain outlet 14, and a plurality of drain outlets with small apertures are provided on the drain cover to filter the drain water and avoid clogging by wire scraps.

[0079] In order to achieve a fixed connection between the drain cover 20, the drain mechanism and the mounting bracket 22, the mounting bracket 22 described in this embodiment is an annular sleeve sleeved on the outer periphery of the drain, and the annular sleeve has an internal thread inside. The connecting part is a connecting sleeve connected to the bottom of the end cover, and the connecting sleeve has an external thread assembled with the internal thread.

[0080] One end of the drainage channel of the drainage mechanism 19 has an internal thread, the length of the connecting sleeve is greater than the length of the annular sleeve, and the portion of the connecting sleeve extending out of the annular sleeve is threadedly connected to the internal thread of the drainage channel.

[0081] In order to achieve a sealed connection between the drain port cover 20 and the drain port, an annular groove is provided on the outer periphery of the drain port 14, and a first sealing ring 21 is provided between the end cover and the annular groove.

[0082] The drainage channel of the drainage mechanism 19 of this embodiment has a retracted drainage port inside. The sealing mechanism includes a blocking component 24 and a supporting component 26. The supporting component 26 is fixedly installed in the drainage channel, and the blocking component 24 can be relatively slidably installed on the supporting component 26:

[0083] During washing or rinsing, the blocking component 24 seals with the channel drain port, and the inner barrel independently holds the washing water; during drainage, the blocking component 24 opens the channel drain port, and the washing water in the inner barrel is discharged.

[0084] The drainage channel has an inwardly protruding section, and a step structure is formed between the inwardly protruding section and the inner wall of the drainage channel. The step structure is the channel drainage port. A second sealing ring 23 is arranged between the end of the connection portion of the drainage port cover 20 and the end of the step structure.

[0085] Furthermore, the supporting component 26 described in this embodiment includes a fixing part and a sleeve part, the fixing part is fixedly installed in the drainage channel and fixedly connected to the sleeve part, and the sleeve part has a hollow slide; the blocking component 24 includes a sealing part and a connecting part, the sealing part is sealed with the channel drainage port, and the connecting part can be slidably arranged in the hollow slide of the sleeve part to realize the sealing and separation of the sealing part and the drainage port.

[0086] The support component 26 of this embodiment can be a separate structure installed in the drainage channel of the drainage mechanism 19, or it can be integrally formed with the drainage mechanism 19 and formed by partially extending the peripheral wall of the drainage channel toward the inside of the drainage channel.

[0087] Furthermore, the portion of one end of the fixing portion connected to the sleeve portion and located in the drainage channel has a smooth structure for the wire scraps to slide smoothly when draining water.

[0088] Preferably, the smooth structure is a saddle-shaped structure with high ends and a low middle.

[0089] Further preferably, the upper surface of the smooth structure is a downwardly curved arc surface.

[0090] Specifically, the sleeve portion is a sleeve with a hollow interior, the bottom surface of the blocking component has a circular sealing portion that matches the drain outlet, and the connecting portion is a center rod arranged at the center position of the circular sealing portion. The center rod is inserted into the sleeve and can slide relatively.

[0091] Preferably, the blocking component further comprises a sealing gasket 25, and the sealing gasket 25 is arranged on the annular sealing portion.

[0092] Furthermore, a fixing buckle 28 is installed at the end of the center rod of the blocking component 24, and the upper end of the sleeve portion 1 has a limiting step extending a certain distance toward the inside of the hollow slideway. The compression spring is sleeved on the center rod, with one end resting on the fixing buckle 28 and the other end resting on the limiting step.

[0093] As an implementation mode of this embodiment, the sealing mechanism includes an elastic component 27, one end of the elastic component 27 stops at the supporting component 26, and the other end stops at the blocking component 24. The elastic component 27 deforms when the blocking component 24 slides to a state separated from the channel drain outlet, thereby realizing the elastic reset seal of the blocking component 24.

[0094] Preferably, the initial state of the elastic component is in a compressed state to maintain the sealing cooperation between the blocking component and the channel drain outlet, and to maintain the normally closed state of the channel drain outlet.

[0095] 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. The driving mechanism has an output end 29 that can be extended upward and downward:

[0096] 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 open the sealing mechanism and separate it from the channel drain port, and the channel drain port is opened for drainage.

[0097] The driving mechanism further comprises a reciprocating component 30 capable of reciprocating up and down and a power component 31 for driving the reciprocating component. The output end 29 is a push rod, which is connected to the reciprocating component.

[0098] The above embodiments can be tried individually or combined with each other to form more combination solutions.

[0099] 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: The washing machine also includes, The drainage sealing device comprises a drainage mechanism and a sealing mechanism. The drainage mechanism has a drainage channel connected to the drainage port, and the sealing mechanism is openably and closably installed in the drainage channel. A mounting bracket mounted on the drain outlet, wherein the drain mechanism is fixedly mounted on the mounting bracket and is in sealed communication with the drain outlet; A drain cover, the drain cover comprises an end cover portion and a connecting portion, the end cover portion is mounted on the drain outlet, a plurality of drain outlets are arranged on the end cover portion, and the connecting portion is fixedly connected to the mounting bracket; A plurality of drain outlets are arranged at the lowest position of the barrel bottom, and the plurality of drain outlets are distributed inside the same circular ring. The drain outlets are arranged near the edge of the barrel bottom, and at least one drain outlet is inscribed in the circumference of the outer contour of the barrel bottom edge, or the circular ring is inscribed in the circumference of the outer contour of the barrel bottom edge.

2. The washing machine according to claim 1, characterized in that: The mounting bracket is an annular sleeve sleeved on the outer periphery of the drain outlet, the annular sleeve has internal threads inside, and the connecting part is a connecting sleeve connected below the end cover, the connecting sleeve has external threads assembled with the internal threads; One end of the drainage channel of the drainage mechanism has an internal thread, the length of the connecting sleeve is greater than the length of the annular sleeve, and the portion of the connecting sleeve extending out of the annular sleeve is threadedly connected to the internal thread of the drainage channel.

3. The washing machine according to claim 1, characterized in that: An annular groove is arranged on the outer periphery of the drain port, and a first sealing ring is arranged between the end cover and the annular groove.

4. The washing machine according to any one of claims 1 to 3, characterized in that: The drainage channel of the drainage mechanism has an inwardly contracted drainage port, and the sealing mechanism includes a blocking component and a supporting component, the supporting component is fixedly installed in the drainage channel, and the blocking component can be relatively slidably installed on the supporting component: During washing or rinsing, the blocking component seals with the channel drain port, and the inner barrel independently holds the washing water; during drainage, the blocking component opens the channel drain port, and the washing water in the inner barrel is discharged.

5. The washing machine according to claim 4, characterized in that: The supporting component includes a fixing part and a sleeve part, the fixing part is fixedly installed in the drainage channel and fixedly connected to the sleeve part, and the sleeve part has a hollow slide; the blocking component includes a sealing part and a connecting part, the sealing part is sealed with the channel drainage port, and the connecting part is slidably arranged in the hollow slide of the sleeve part to realize the sealing and separation of the sealing part and the drainage port.

6. The washing machine according to claim 4, characterized in that: The sealing mechanism comprises an elastic component, one end of which abuts against the supporting component and the other end abuts against the blocking component. The elastic component deforms when the blocking component slides to a state separated from the channel drain outlet, thereby realizing elastic resetting and sealing of the blocking component.

7. The washing machine according to claim 6, characterized in that: The initial state of the elastic component is in a compressed state to maintain the sealing fit between the blocking component and the channel drain outlet.

8. The washing machine according to claim 4, characterized in that: The washing machine 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 that can be extended up and down: 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 open the sealing mechanism and separate it from the channel drain port, and the channel drain port is opened for drainage.

9. The washing machine according to claim 1, 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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