JP7240488B2 - Drainage device for washing machine, washing machine and control method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to the technical field of drainage in a non-perforated inner tub washing machine, and more particularly to a drainage device for a washing machine, a washing machine and a control method thereof.

Generally, the structure of a conventional washing machine includes two parts, an inner tub and an outer tub, and the inner tub and the outer tub communicate with each other. The inner tank is provided with a dehydration hole for dehydration, and the outer tank is sealed to serve as a water tank. Therefore, when the washing machine operates, the area between the inner tub and the outer tub is filled with water. Therefore, as the washing machine is used and operated for a long period of time, the area between the inner and outer tubs becomes covered with dirt and lint contained in the water. The resulting consequences have a significant impact on cleaning effectiveness and user experience.

In order to solve the problem of contamination of the inner and outer tubs caused by water filling between the inner and outer tubs, the conventional new washing machine is sealed between the inner and outer tubs to prevent contamination. It makes the problem eradicable. A known solution is to isolate the inner and outer tanks by designing the inner tank as a non-perforated inner tank, making the inner tank a reservoir. In addition, in order to drain water from the inner tank, the inner tank is sealed by pressing the outer sealing structure against the drain hole of the inner tank. However, in such a case, the inner tub cannot rotate relative to the outer tub. Therefore, if the load in the inner tub wobbles due to the rotation of the laundry, there is a risk that the sealing structure will wobble, and water leakage may occur.

In addition, with the improvement of living standards, the user's demands for cleaning effect on clothes continue to increase. Basically, a conventional washing machine cleans clothes by agitating the water stream by rotating a pulsator during both washing and rinsing processes. However, the water flow formed by such a cleaning method is rather uniform, and an improvement in the cleaning effect is desired. On the other hand, in the case of a conventional dual-power washing machine, more power can be applied to the water flow by controlling the rotation of the pulsator and the inner tub in opposite directions during washing and rinsing. This increases the water flow pattern and strengthens the water flow effect, thus providing a relatively good cleaning effect.

As described above, the present invention provides a washing machine in which water cannot exist between tubs, and at the same time, by providing a washing method of a dual-power washing machine, it is possible for the user to determine the cleanliness of the clothes and the cleanliness of the washing machine. The purpose is to satisfy the requirements.

SUMMARY OF THE INVENTION In order to solve the above problems, a first object of the present invention is to provide a washing machine drainage device. Specifically, the following technical measures are adopted.

A drainage device for a washing machine, the washing machine includes an inner tub and a water collecting device, and a drainage hole is formed at the bottom of the inner tub. During the washing process, no water exists between the inner tank and the water collecting device. On the other hand, in the drainage process and the dehydration process, the water in the inner tank enters the water collecting device and is discharged. The drainage device includes a sealing mechanism and a locking mechanism. The sealing mechanism includes a closure component and a drive member. A closure component is attached to the drain to keep the drain closed at all times. The drive member also has an output end that reciprocates in a direction parallel to the central axis of the inner tank. The locking mechanism locks and positions the inner tub, and the output end of the driving member reciprocates to push out the closing part to open the drain hole or return to the position to close the drain hole.

Further, the lock mechanism includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tank, and a lock motor that reciprocates the lock rod. A lock hole is provided in the bottom of the inner tank, and when the lock motor moves the lock rod upward, the lock rod is inserted into the lock hole to achieve locking and positioning of the inner tank.

Further, the lock motor is directly connected to the lock rod to reciprocate the lock rod in a direction parallel to the central axis of the inner tub. Alternatively, the lock motor is communicatively connected to the lock rod via a transmission mechanism to reciprocate the lock rod in a direction parallel to the central axis of the inner tub.

Furthermore, the transmission mechanism includes a lock transmission pulley and a lock transmission rod. The lock transmission pulley has a first connection and a second connection which are eccentrically installed. The output shaft of the lock motor is fixedly connected to the first connecting portion of the lock transmission pulley to rotate the lock transmission pulley. The lock transmission rod has one end rotatably connected to the second connecting portion via a pivot shaft and the other end rotatably connected to the lock rod via a pivot shaft.

Furthermore, the locking mechanism includes an elastic restoring member. The elastic restoring member is positioned and mounted between one end of the lock rod positioned inside the water collecting device and the inner wall of the water collecting device.

Preferably, the elastic restoring member is a coil spring disposed on the lock rod, and the lock rod is provided with a position regulating protrusion that defines the coil spring.

Further, the closure component includes a closure member and a support member. The support member is fixedly attached to the bottom of the inner tub and extends to the drain hole, and the closure member is attached to the support member so as to be relatively slidable.

During washing or rinsing, the closure member sealingly engages the drain hole and the inner tub is filled with wash water. On the other hand, at the time of draining, the output end of the drive member pushes the closing member out of the drain hole to open the drain hole, and the washing water in the inner tank is discharged from the drain hole.

Further, the water collecting device is provided with a shared mounting for simultaneously mounting the driving members of the locking and sealing mechanisms.

Further, the common mounting portion is a common mounting opening installed in the water collecting device, and the driving members of the locking mechanism and the sealing mechanism are both mounted in the common mounting opening.

Further, the drainage device includes a mounting housing. The driving members of the locking mechanism and the sealing mechanism are both mounted in the mounting housing and mounted in the common mounting opening via the mounting housing.

Additionally, the locking mechanism includes a locking mechanism housing and the drive member includes a drive member housing. The mounting housing has a first mounting opening for fixed mounting of the lock mechanism housing and a second mounting opening for fixed mounting of the drive member housing.

Furthermore, the drive member includes a drive motor. The output end is a pressing rod that reciprocates by being driven by a drive motor. The push rod moves toward the closure piece by being driven by a drive motor. The pressing rod pushes out the blocking member to open the drainage hole and drain the water.

Further, the locking mechanism includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tub, and the output end of the drive member is a push rod that reciprocates in a direction parallel to the central axis of the inner tub. The locking rod and the pressing rod are driven by the same common motor.

A second object of the present invention is to provide a washing machine. Specifically, the following technical solutions are used.

The washing machine with the drainage device includes an inner tub and a water collecting device, and a drainage hole is formed in the bottom of the inner tub. During the washing process, no water exists between the inner tub and the water collecting device, and during the draining and dewatering processes, the water in the inner tub enters the water collecting device and is discharged.

A third object of the present invention is to provide a control method for a washing machine. Specifically, the following technical solutions are used.

In the washing machine control method, the washing machine controls the locking mechanism to lock and position the inner tub, and controls the output end of the driving member to reciprocate in a direction parallel to the central axis of the inner tub. As a result, the blocking part is pushed out or returns to its position to close the drain hole, thereby opening/closing the drain hole.

Further, the washing machine control method includes: a.

During the washing/rinsing/spin-drying process, the washing machine controls the locking mechanism and the output end of the drive member to return to their positions, so that the blocking member blocks the drain hole and keeps it closed.

On the other hand, during the draining process, the washing machine extends the output end of the locking mechanism to lock and position the inner tub, and controls the output end of the driving member to extend to drain the closing part. Open the drainage hole by pushing it out of the hole.

Further, the washing machine control method includes: a.

During the washing/rinsing process, the washing machine performs dual-power washing by controlling the speed reduction clutch device to achieve forward and reverse rotation of the inner tub.

Since the inner tub of the washing machine of the present invention serves as a reservoir, the inner tub adopts a "non-perforated" design. In addition, the outer tank is omitted, and only the waste water from the inner tank is collected and discharged by the water collecting device. As a result, the washing machine of this embodiment has the following technical effects.

1. The capacity of the inner tub can be increased without changing the volume of the housing, and the effect of increasing the capacity of the washing machine is realized.

2. During the washing process, water exists only in the inner tub, so water accumulates between the inner tub and the outer tub like a conventional washing machine, causing dirt and grime to build up on the inner wall of the outer tub and the outer wall of the inner tub. The problem of "adhesion" is avoided. Therefore, it has a better cleaning effect.

3. By omitting the outer tank and using the inner tank as a water tank, no water exists between the inner tank and the outer tank during the cleaning process. As a result, the amount of washing water is reduced, so that the amount of washing water is saved.

The drainage device of the present invention is designed for the structure of the inner tank itself. The closing part of the sealing mechanism allows the inner tub to be self-sealed, so that no water can be present between the inner and outer tubs during operation of the washing machine, preventing contamination. In addition, the user can apply water-saving technology. In addition, after the inner tub is self-sealed by the sealing mechanism, the inner tub and the pulsator can be rotated relative to each other, so that the clothes can be washed with dual power. Further, by locking the inner tank by combining the locking member, the opening of the drainage port by the sealing mechanism becomes easier, so that the normal progress of drainage is guaranteed.

In the present invention, since the driving members of the locking mechanism and the sealing mechanism are integrated and mounted in the shared mounting portion of the water collecting device, the overall structure of the water collecting device is simplified, and sealing mounting becomes easier.

FIG. 1 is a diagram showing the structure of a tub body unit of a washing machine according to Embodiment 1 of the present invention. FIG. 2 is an exploded view of the inner tub of the washing machine according to Embodiment 1 of the present invention. FIG. 3 is a plan view of the water collecting device in Example 1 of the present invention. FIG. 4 is a diagram showing the structure of the drain device in Example 1 of the present invention in a state in which the drain hole of the inner tank is closed (the lock mechanism is unlocked). FIG. 5 is a diagram showing the structure of the drain device in Example 1 of the present invention in a state in which the drain hole of the inner tank is closed (lock mechanism is locked). FIG. 6 is a diagram showing the structure of the drainage device in the first embodiment of the present invention when the drainage hole of the inner tank is open (the lock mechanism is locked). FIG. 7 is a diagram showing assembly when the sealing mechanism according to the second embodiment of the present invention is attached to a washing machine (with the drain hole closed). FIG. 8 is a diagram showing assembly when the sealing mechanism according to the second embodiment of the present invention is attached to a washing machine (drain hole is open). FIG. 9 is an exploded view of the closing component of the sealing mechanism in Example 2 of the present invention. FIG. 10 is an exploded view of the inner tub of the washing machine according to Embodiment 3 of the present invention. FIG. 11 is a diagram showing the structure of the drain device in Example 3 of the present invention in a state in which the drain hole of the inner tank is closed (the lock mechanism is unlocked). FIG. 12 is a diagram showing the structure of the drain device in Example 3 of the present invention in a state in which the drain hole of the inner tank is closed (lock mechanism is locked). FIG. 13 is a diagram showing the structure of the drainage device in the third embodiment of the present invention when the drainage hole of the inner tank is open (the lock mechanism is locked). FIG. 14 is a flowchart of a washing machine control method according to Embodiment 4 of the present invention.

The drainage device for the washing machine, the washing machine, and the control method thereof according to the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 to 6, the washing machine of this embodiment includes an inner tub 500 and a water collecting device 800, and the inner tub 500 has a drain hole at the bottom thereof. There is no water between the inner tub 500 and the water collecting device 800 during the cleaning process. On the other hand, in the drainage process and the dehydration process, the water in the inner tub 500 enters the water collecting device 800 and is discharged.

Since the inner tub of the washing machine in this embodiment serves as a reservoir, the inner tub adopts a "non-perforated" design. In addition, the outer tank is omitted, and only the waste water from the inner tank is collected and discharged by the water collecting device. As a result, the washing machine of this embodiment has the following technical effects.

1. The capacity of the inner tub can be increased without changing the volume of the housing, and the effect of increasing the capacity of the washing machine is realized.

2. During the washing process, water exists only in the inner tub, so water accumulates between the inner tub and the outer tub like a conventional washing machine, causing dirt and grime to build up on the inner wall of the outer tub and the outer wall of the inner tub. The problem of "adhesion" is avoided. Therefore, it has a better cleaning effect.

3. By omitting the outer tank and using the inner tank as a water tank, no water exists between the inner tank and the outer tank during the cleaning process. As a result, the amount of washing water is reduced, so that the amount of washing water is saved.

In this embodiment, a draining device including a sealing mechanism and a locking mechanism 1200 is provided to solve the problem of draining water in a "no hole" inner tub washing machine. The sealing mechanism includes a closure component and a drive member 900 . A closure component is attached to the drain to keep the drain closed at all times. Further, the driving member 900 has an output end that reciprocates in a direction parallel to the central axis of the inner tank. The locking mechanism 1200 locks and positions the inner tub 500, and the output end of the driving member 900 reciprocates to push out the closing member to open the drain hole or return to the position to close the drain hole.

The drainage device of this embodiment is designed for the structure of the inner tank itself. The closing part of the sealing mechanism allows the inner tub to be self-sealed, so that no water can be present between the inner and outer tubs during operation of the washing machine, preventing contamination. In addition, the user can apply water-saving technology. In addition, after the inner tub is self-sealed by the sealing mechanism, the inner tub and the pulsator can be rotated relative to each other, so that the clothes can be washed with dual power. In addition, by locking the inner tank by combining the lock member 1200, the opening of the drainage port by the sealing mechanism becomes easier, so that the normal progress of drainage is guaranteed.

As one embodiment of the present embodiment, the lock mechanism 1200 includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tub 500 and a lock motor that reciprocates the lock rod. A lock hole is provided in the bottom of the inner tank, and when the lock motor moves the lock rod upward, the lock rod is inserted into the lock hole to achieve locking and positioning of the inner tank.

Further, the lock motor is directly connected to the lock rod to reciprocate the lock rod in a direction parallel to the central axis of the inner tub. Alternatively, the lock motor is communicatively connected to the lock rod via a transmission mechanism to reciprocate the lock rod in a direction parallel to the central axis of the inner tub.

Specifically, the transmission mechanism includes a lock transmission pulley and a lock transmission rod. The lock transmission pulley has a first connection and a second connection which are eccentrically installed. The output shaft of the lock motor is fixedly connected to the first connecting portion of the lock transmission pulley to rotate the lock transmission pulley. The lock transmission rod has one end rotatably connected to the second connecting portion via a pivot shaft and the other end rotatably connected to the lock rod via a pivot shaft.

Furthermore, the locking mechanism includes an elastic restoring member. The elastic restoring member is positioned and mounted between one end of the lock rod positioned inside the water collecting device and the inner wall of the water collecting device.

Preferably, the elastic restoring member is a coil spring disposed on the lock rod, and the lock rod is provided with a position regulating protrusion that defines the coil spring.

In one embodiment of this embodiment, the closure component includes closure member 100 and support member 600 . A support member 600 is fixedly attached to the bottom of the inner tub 500 and extends to the drain hole. Also, the closing member 100 is mounted on the support member 600 so as to be relatively slidable.

During washing or rinsing, the closure member 100 sealingly engages the drain hole and the inner tub 500 is filled with washing water. On the other hand, at the time of draining, the output end of the drive member pushes the closing member out of the drain hole to open the drain hole, and the washing water in the inner tank is discharged from the drain hole.

In the washing machine control method of this embodiment, the washing machine controls the locking mechanism to lock and position the inner tub, and the output end of the drive member reciprocates in a direction parallel to the central axis of the inner tub. Control. As a result, the blocking part is pushed out or returns to its position to close the drain hole, thereby opening/closing the drain hole.

Furthermore, in the washing machine control method of the present embodiment, the washing machine is controlled so that both the lock mechanism and the output end of the driving member are in the position return state in the washing/rinsing/dehydration process. Block the drain hole to keep it closed.

On the other hand, during the draining process, the washing machine extends the output end of the locking mechanism to lock and position the inner tub, and controls the output end of the driving member to extend to drain the closing part. Open the drainage hole by pushing it out of the hole.

Furthermore, in the washing machine control method of the present embodiment, the washing machine performs dual-power washing by controlling the reduction clutch device to realize forward and reverse rotation of the inner tub during the washing/rinsing process.

As shown in FIGS. 7 to 9, the washing machine includes an inner tub 500 in the washing machine drainage device of this embodiment. A drainage hole is formed in the bottom of the inner tub 500, and the drainage sealing device includes a sealing mechanism that can be sealingly engaged with the drainage hole. The sealing mechanism includes a closure component and a drive member 900 . The closure component includes closure member 100 and support member 600 . A support member 600 is fixedly attached to the bottom of the inner tub and extends to the drain hole. Also, the closing member 100 is mounted on the support member 600 so as to be relatively slidable.

During washing or rinsing, the closure member 100 sealingly engages the drain hole and the inner tub is filled with washing water. On the other hand, when draining water, the closing member 100 opens the drain hole, so that the cleaning water in the inner tank is drained from the drain hole.

The drainage sealing device of this embodiment is designed for the structure of the inner tank itself. The closing part of the sealing mechanism allows the inner tub to be self-sealed, so that no water can be present between the inner and outer tubs during operation of the washing machine, preventing contamination. In addition, the user can apply water-saving technology. In addition, after the inner tub is self-sealed by the sealing mechanism, the inner tub and the pulsator can be rotated relative to each other, so that the clothes can be washed with dual power.

As one embodiment of the present embodiment, the support member 600 includes a fixing portion and a fitting portion 601 . The fixed part is fixedly mounted on the bottom of the inner tub and extends to the drain hole to be fixedly connected to the fitting part. The fitting portion 601 has a hollow sliding path. Also, the closing member 100 includes a sealing portion 101 and a connecting portion 102 . The connecting part 102 is slidably installed in a hollow sliding path in the fitting part 601 to achieve sealing and separation between the sealing part 101 and the drain hole.

Further, a smooth structure 602 is provided at one end of the fixed portion connected to the fitting portion 601 and located inside the drain hole to allow lint to slide down smoothly during drainage.

Preferably, the smooth structure 602 is a saddle structure with high ends and low center.

More preferably, the upper surface of the smooth structure forms an arcuate surface curved downward.

Specifically, the fitting part 601 is a hollow sleeve. In addition, the bottom surface of the closing member 100 is provided with an annular sealing portion that engages with the drain hole. The connection part 102 is a center rod installed at the center position of the annular sealing part. The center rod is inserted into the sleeve and is relatively slidable.

Preferably, said closure member 100 further comprises a gasket 300 . The gasket 300 is installed in the annular seal.

In order to maintain the self-sealing by the closure member 100 and the return to position and sealing after opening the drain hole, the sealing mechanism includes an elastic member. One end of the elastic member contacts the support member 600 and the other end contacts the closing member 100 . The elastic member is deformed when the closing member 100 slides until it is separated from the drain hole, and the elastic restoration of the closing member 100 achieves sealing.

Preferably, said resilient member is in compression in the initial state to maintain sealing engagement between the closure piece and the drain hole.

As one embodiment of this embodiment, the elastic member is a compression spring 200 . The compression spring 200 is arranged in the hollow sliding path of the fitting portion 601 . The compression spring 200 has one end in contact with the fitting portion 601 and the other end in contact with the closing member 100 .

Furthermore, a fastener 700 is attached to the end of the center rod of the closing member 100 . In addition, the upper end of the fitting portion 601 is provided with a position regulating step formed by extending a certain distance toward the inside of the hollow sliding path. The compression spring 200 is covered by the center rod, and has one end in contact with the fastener 700 and the other end in contact with the position regulating step.

The closure component in this embodiment includes a top cover. The upper end surface of the upper cover forms an arcuate surface. In addition, the lower end surface of the upper cover is provided with a sealing portion that sealingly engages with the drain hole.

At the time of draining, there is a risk that wash water flowing out from the drain hole may enter the fitting portion 601 of the support member. In that case, as time passes, lint, dirt, or foreign matter in the washing water enters, affecting the members inside the fitting portion 601, such as the compression spring 200, and as a result normal operation becomes impossible. , it may interfere with the normal position return and sealing effect of the closure part. Therefore, in order to ensure relative stability of the operating environment of the members inside the fitting 600, the sealing mechanism described in this embodiment includes a sealing member. Both ends of the sealing member are sealingly mounted between the closure member and the support member to form a sealed space.

Preferably, said sealing member is a sealing corrugated sleeve 1000 . One end of the sealing corrugated sleeve 1000 is sealingly connected to the closing part and the other end is sealingly connected to the fitting portion of the support member, thereby forming a sealed space that completely covers the fitting portion 601 . Form. The sealing corrugated sleeve 1000 has a sealing effect and can expand and contract with the up and down movement of the top cover. The structure is simple, low cost, and ensures the sealing of the operating environment for the compression spring 200 .

Please refer to FIG. 1 for the assembly relationship between each part of the sealing mechanism in this embodiment. First, the supporting member 600 is assembled to the flange 400 with two screws, and then the closing member 100 with the gasket 300 is assembled in the hollow sliding path of the fitting portion 601 . Then, the attachment is completed by locking the compression spring 200 from the other end with the fastener 700 .

Working Principle of Sealing: When the compression spring 200 is compressed, the force of one end acts on the support member 600 and the force of one end acts on the fastener 700 . The fastener 700 transmits the spring force to the entire closure member 100 through the center rod of the closure member 100, and the closure member 100 is pressed against the bottom of the inner tank by the action of the spring force to produce a sealing effect. The above is shown in FIG.

Working principle of drainage: When preparing for drainage, the inner tank overlaps the position of the sealing structure and the driving mechanism by the positioning structure. At this time, the output end of the driving mechanism 1000 pushes up the fastener 700 to move the upper cover upward. Thereby, a gap is generated between the upper cover and the drainage hole, and drainage is realized. At this time, the compression spring 200 is also compressed to the limit position. When draining is completed, the output end 1001 of the driving mechanism 1000 contracts, causing the top cover to reseal the drain hole under the action of spring force. The above is shown in FIG.

In designing the drainage system of this embodiment, a tapered design is employed for both the inner tank and the gasket. As a result, when the clothes are concentrated in the vicinity of the drain port, the impact of the water flow and the action of the gravity of the foreign matter itself make it easier to discharge the foreign matter. In addition, it is easy to prevent lint from accumulating due to long-term operation.

A sealing rubber pad is also secured across the top of the sealing structure. Considering the case where the foreign matter sticks to the bottom of the inner tank and is discharged, the inner tank is made of stainless steel, which has a lower frictional attenuation than the frictional resistance of rubber. In addition, it is easy to prevent lint from accumulating due to long-term operation.

The support member 600 employs a saddle structure. As a result, even if the foreign matter comes into contact with the frame when being discharged from the inner tank, it is possible to prevent the situation in which the foreign matter is more likely to stay as in the case where the frame is flat. In addition, the semi-circular structural design reduces damping, so it is easy to prevent lint build-up during long-term operation.

The fitting portion 601 of the support member 600 may be an intermediate fit with respect to the center rod of the closure member 100 . This effectively prevents lint and foreign matter from entering the spring space and delaying the operation of the spring.

Preferably, a drain valve can be selected as the drive mechanism. The drain valve push-up post should be larger than the diameter of the inner cylinder of the fastener 700 to ensure that the push force from the drain valve push-up post acts on the fastener. This prevents the push force from acting directly on the center rod of the closure member 100 and the potential risk of the push-up post falling out. Moreover, the said part may be engaged and fixed by a screw, and may be engaged and fixed by elasticity.

As an embodiment of this embodiment, the washing machine includes a water collecting device 800 installed outside the inner tub. Also, the drainage seal further includes a drive mechanism 900 . The driving mechanism 900 is mounted on the water collecting device and corresponds to the sealing mechanism. The drive mechanism has an output end that can extend and contract vertically.

During washing or rinsing, the output end of the drive contracts. The sealing mechanism then sealingly engages the drain hole and the inner tub is filled with wash water. When draining, the output end of the driving device extends and pushes up the sealing mechanism to separate it from the drain hole. As a result, the drain hole is opened, and the wash water in the inner tank flows out from the drain hole into the water collecting device and is discharged.

The output end 1001 of the driving device in this embodiment is a telescopic rod. The telescoping rod can extend into the support member 600 to push the closure member 100 up.

Further, this embodiment provides a washing machine including an inner tub. A drain hole is formed in the bottom of the inner tank. A drainage sealing device including a sealing mechanism that can be sealingly engaged with the drainage hole is mounted on the bottom of the inner tub. The sealing structure includes a closure component and a support member. A support member is fixedly attached to the bottom of the inner tub and extends to the drain hole. Also, the closure component is mounted on the support member so as to be relatively slidable.

During washing or rinsing, the closure member sealingly engages the drain hole and the inner tub is filled with wash water. Further, when draining water, the cleaning water in the inner tank is discharged from the drain hole by the closing member opening the drain hole.

According to the washing machine of this embodiment, since water cannot exist between the tubs, the problem that the area between the inner tub and the outer tub is easily contaminated is solved. In addition, the washing machine of the present embodiment can realize dual-power washing, so that the washing effect is improved and the user's request for washing is satisfied.

The inner tank of this embodiment is a non-perforated inner tank. The tank wall of the inner tank of this embodiment is entirely sealed except for the dehydration holes provided around the upper part. Preferably, the dewatering hole is installed in the inner tank mouth. In addition, since the dewatering hole can be hidden by the balance ring by attaching the balance ring to the inner tank port, an inner tank structure without holes can be realized.

As shown in FIGS. 10-13, the drainage device of this embodiment includes a sealing mechanism and a locking mechanism. The sealing mechanism includes a closure component and a drive member. A closure component is attached to the drain to keep the drain closed at all times. The drive member also has an output end that reciprocates in a direction parallel to the central axis of the inner tank. The locking mechanism locks and positions the inner tub, and the output end of the driving member reciprocates to push out the closing part to open the drain hole or return to the position to close the drain hole. The water collecting device is provided with a common mounting portion used for mounting and for simultaneously mounting the driving members of the locking mechanism and the sealing mechanism.

In this embodiment, since the driving members of the locking mechanism and the sealing mechanism are integrated and mounted in the common mounting portion of the water collecting device, the overall structure of the water collecting device is simplified and the sealing mounting becomes easier.

Further, the common attachment part is a common attachment opening installed in the water collecting device. The driving members of the locking mechanism and the sealing mechanism are both mounted in the common mounting opening.

As one embodiment of this embodiment, the drainage device includes a mounting housing 1300 . The driving members of the locking mechanism and the sealing mechanism are both mounted in the mounting housing 1300 and mounted in the common mounting opening through the mounting housing 1300 .

Specifically, the locking mechanism includes a locking mechanism housing and the driving member includes a driving member housing. The mounting housing 1300 has a first mounting opening for fixed mounting of the lock mechanism housing and a second mounting opening for fixed mounting of the driving member housing.

The washing machine of this embodiment includes an inner tub and a water collecting device, and a drain hole is formed at the bottom of the inner tub. During the washing process, no water exists between the inner tank and the water collecting device. On the other hand, in the drainage process and the dehydration process, the water in the inner tank enters the water collecting device and is discharged. Moreover, it further includes a drainage device for realizing drainage from the inner tank and a water level detection device for detecting the water level in the water collecting device. The drainage device includes a sealing mechanism and a locking mechanism. The sealing mechanism includes a closure component and a drive member. A closure component is attached to the drain to keep the drain closed at all times. The drive member also has an output end that reciprocates in a direction parallel to the central axis of the inner tank. The locking mechanism locks and positions the inner tub, and the output end of the driving member reciprocates to push out the closing part to open the drain hole or return to the position to close the drain hole.

Further, the portion of the inner tank wall below the maximum water level is closed, and the portion of the inner tank wall above the maximum water level is provided with a dewatering hole.

The water collecting device is positioned below the inner tank and coaxial with the inner tank. The water collection device also has an open reservoir. The opening of the water collecting device is provided so as to be lower than the dewatering hole of the inner tank.

The detection end of the water level detection device communicates with the water storage chamber of the water collection chamber.

Further, the lock mechanism includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tank, and a lock motor that reciprocates the lock rod. A lock hole is provided in the bottom of the inner tank, and when the lock motor moves the lock rod upward, the lock rod is inserted into the lock hole to achieve locking and positioning of the inner tank.

Further, the water level detection device is electrically connected to a main control board, and the control device for the drive member and the control device for the lock motor are electrically connected to the main control board.

In the washing machine control method described in this embodiment, when the water level detection device detects an abnormality in the water level in the water collecting device during the draining process, the washing machine controls the output end of the driving device to return to the position. , the closure component closes the drain hole to keep it closed.

Furthermore, when the water level detection device detects whether or not the water level in the water collecting device is abnormal, a safe water level is set in the water collecting device to prevent water from overflowing from the water collecting device. When the water level detecting device detects that the water level in the water collecting device reaches the safe water level during the drainage process, it determines that the water level in the water collecting device is abnormal.

Furthermore, when the water level in the water collecting device is abnormal, the washing machine controls the output end of the driving device to return to the position, so that the closing member closes the drain hole and keeps it closed. If this is not done, drainage continues.

Preferably, a minimum water level is set in the water collecting device, and the water level detecting device detects the water level in the water collecting device after the closing member closes the drain hole. When the water level in the water collecting device drops to the minimum water level, the output end of the driving member is controlled to extend, and the closing member is pushed out of the drain hole to open the drain hole. This allows the drainage process to continue and an alarm to be issued if the minimum water level is not reached within a predetermined period of time.

Further, when the water level abnormality detection number N in the water collecting device reaches a predetermined value N0 during the draining process of the washing machine, the washing machine controls the output end of the driving device to return to the position, so that the closing part blocks the drain hole and keeps it closed. This causes the washing machine to stop draining and issue an alarm.

Further, the washing machine controls the extension of the output end of the locking mechanism to lock and position the inner tub. Further, the output end of the driving member is controlled to extend, and the closing member is pushed out from the drain hole to open the drain hole and proceed with the draining process.

The foregoing are merely preferred embodiments of the invention and are not intended to limit the invention in any form. Although the present invention has been disclosed above through preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight variations or supplements that can be implemented by those skilled in the art using the technical content presented above are regarded as equally modified equivalent embodiments, and any It does not deviate from the content of the technical plan. In addition, any simple modifications, equivalent variations and supplements added to the above embodiments based on the technical essence of the present invention are all within the scope of the scheme of the present invention.

Claims (15)

A draining device for a washing machine, wherein the washing machine includes an inner tub and a water collecting device, and a drain hole is formed at the bottom of the inner tub, and during the washing process, the inner tub and the water collecting device are separated from each other. A drainage device in which there is no water between them and the water in the inner tank enters and is discharged from the water collecting device during the drainage and dehydration processes,
A sealing mechanism and a locking mechanism, wherein the sealing mechanism includes a closing part and a driving member, the closing part is attached to the drain to keep the drain closed at all times, and the driving member is positioned at the center of the inner tub. It has an output end that reciprocates in a direction parallel to the axis, the locking mechanism locks and positions the inner tank, and the reciprocating motion of the output end of the driving member pushes out the closing part. opening the drain hole or closing the drain hole by returning to the position;
The closure component includes a closure member and a support member including a fixed portion and a fitting portion, the closure member being relatively slidably mounted on the support member,
The fixed portion of the support member is fixedly mounted on the bottom of the inner tub, extends to the drain hole, and is fixedly connected to the fitting portion, and the fitting portion has a hollow sliding path. ,
the closure member includes a sealing portion and a connection portion, the connection portion being slidably mounted within a hollow sliding path in the fitting;
One end of the fixing portion connected to the fitting portion and located inside the drain hole is provided with a smooth structure, and the smooth structure is high at both ends and low at the center. A drainage device characterized by having a saddle structure . The lock mechanism includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tank, and a lock motor that reciprocates the lock rod. A lock hole is provided in the bottom of the inner tank. 2. The washing machine according to claim 1, wherein when the lock motor moves the lock rod upward, the lock rod is inserted into the lock hole to lock and position the inner tub. drainage system. The lock motor is directly connected to the lock rod to reciprocate the lock rod in a direction parallel to the central axis of the inner tank.
Alternatively, the lock motor is communicatively connected to the lock rod via a transmission mechanism to reciprocate the lock rod in a direction parallel to the central axis of the inner tank. Drainage device for the described washing machine. The transmission mechanism includes a lock transmission pulley and a lock transmission rod, the lock transmission pulley has a first connection and a second connection eccentrically installed, and the output shaft of the lock motor is connected to the lock. The lock transmission rod is fixedly connected to a first connection portion of a transmission pulley to rotate the lock transmission pulley, and has one end rotatably connected to the second connection portion via a pivot shaft and the other end. is rotatably connected to the lock rod through a pivot shaft. the locking mechanism includes an elastic restoring member, the elastic restoring member is positioned and mounted between one end of the lock rod positioned within the water collecting device and an inner wall of the water collecting device;
3. The laundry according to claim 2, wherein said elastic restoring member is a coil spring disposed on said lock rod, and said lock rod is provided with a position regulating protrusion that defines said coil spring. machine drainage. 3. The drainage device of a washing machine according to claim 1 , wherein the water collecting device is provided with a shared mounting portion for simultaneously mounting driving members of the locking mechanism and the sealing mechanism. 7. The method according to claim 6 , wherein the common mounting portion is a common mounting opening installed in the water collecting device, and the driving members of the locking mechanism and the sealing mechanism are both mounted in the common mounting opening. Drainage device for the described washing machine. 3. The drain device includes a mounting housing, and the driving members of the locking mechanism and the sealing mechanism are both mounted on the mounting housing and mounted in the common mounting opening through the mounting housing. 8. The washing machine drainage device according to 7 . The locking mechanism includes a locking mechanism housing, the driving member includes a driving member housing, and the mounting housing has a first mounting opening for fixed mounting of the locking mechanism housing and a fixed mounting of the driving member housing. 9. The drainage device for a washing machine according to claim 8 , further comprising a second mounting opening for draining. The driving member includes a driving motor, the output end is a pressing rod that reciprocates by being driven by the driving motor, the pressing rod is driven by the driving motor to move toward the closing part, and the pressing rod is driven by the driving motor to move toward the closing member. 10. The drainage device for a washing machine according to any one of claims 6 to 9 , characterized in that the drainage hole is opened by pushing out the closing part to drain the water. The locking mechanism includes a lock rod that reciprocates in a direction parallel to the central axis of the inner tank, and the output end of the driving member is the pressing rod that reciprocates in a direction parallel to the central axis of the inner tank. 10. The drain device for a washing machine according to claim 6 , wherein the lock rod and the pressing rod are driven by a common motor. A washing machine having the drainage device according to any one of claims 1 to 11 ,
It comprises an inner tank and a water collecting device, and a drainage hole is formed in the bottom of the inner tank. During the washing process, there is no water between the inner tank and the water collecting device, and the water is drained and dehydrated. The washing machine according to the above, wherein the water in the inner tub enters the water collecting device and is discharged. A control method for a washing machine according to claim 12 ,
The washing machine controls the locking mechanism to lock and position the inner tub, and controls the output end of the drive member to reciprocate in a direction parallel to the central axis of the inner tub, so that the blocking part is positioned to the drain hole. A control method characterized in that the drain hole is opened/closed by pushing out from or returning to the position to close the drain hole. In the washing/rinsing/dehydration process, the washing machine controls the locking mechanism and the output end of the driving member so as to return to their positions, so that the blocking member blocks the drain hole and maintains the closure;
In the draining process, the washing machine extends the output end of the locking mechanism to lock and position the inner tub, and controls the output end of the driving member to extend to move the blocking part into the drain hole. 14. The method of controlling a washing machine according to claim 13 , wherein the drain hole is opened by pushing out from. 15. The washing machine according to claim 13 or 14, wherein in the washing/rinsing process, the washing machine performs dual-power washing by controlling a deceleration clutch device to realize forward and reverse rotation of the inner tub. control method.

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