CN112127108A - a washing machine - Google Patents

Abstract

The present invention provides a washing machine, comprising an inner tub that can independently hold washing water during washing, characterized in that the inner surface of the tub bottom of the inner tub is sealed and assembled or integrally formed with a tub bottom protrusion protruding toward the interior of the inner tub , the bottom of the inner tub is provided with a drain port, the washing machine further includes a drain seal device, the drain seal device includes a seal mechanism that can seal the drain port and a drive mechanism that drives the seal mechanism to open/close the drain port. The inner tub of the washing machine of the present invention eliminates the pulsator and solves the problem of easily storing dirt between the pulsator and the tub bottom by sealingly assembling the inner surface of the tub bottom or integrally forming a tub bottom protruding portion protruding toward the interior of the inner tub. The water flow and the laundry are driven by the protrusions at the bottom of the tub to achieve washing/rinsing with the movement, ensuring the effect of laundry.

Description

a washing machine

technical field

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

Background technique

As shown in Figure 1, the structure of the existing washing machine generally includes two parts: an inner barrel and an outer barrel 1, the inner barrel and the outer barrel 1 are connected, the inner barrel is provided with a dehydration hole for dehydration, and the outer barrel 1 is closed to contain bucket. In this way, when the washing machine is working, the area between the inner tub and the outer tub 1 is filled with water. During the long-term operation of the washing machine, the area between the inner tub and the outer tub 1 will be covered with dirt and lint in the water. If it is full, the use of it for many years will produce bacteria and odors, which will have a greater impact on the washing effect and user experience.

In addition, the pulsator 3 and the tub bottom 4 of the existing fully automatic pulsator washing machine are driven by different drive shafts, and the pulsator 3 is rotatable relative to the tub bottom 4. Therefore, there is a gap between the pulsator 3 and the tub bottom 4. In addition, the bottom of the pulsator 3 generally has more reinforcing ribs. With the increase of the use time of the washing machine, the problem of dirt accumulation between the pulsator 3 and the bottom of the tub 4 is also likely to occur.

In order to solve the problem of contamination of the inner tub and the outer tub caused by the filling of water between the inner tub and the outer tub, there is a new type of washing machine that can seal the inner tub and the outer tub to prevent the pollution problem. The known solution is to design the inner barrel as a non-porous inner barrel, so as to isolate the inner barrel from the outer barrel, the inner barrel acts as a water bucket, and at the same time, in order to realize the drainage of the inner barrel, an external sealing structure is used to top the inner barrel. On the drain port, the inner barrel is sealed. Although the non-porous inner barrel can solve the problem of dirt between the inner barrel and the outer barrel, it cannot solve the problem of dirt between the pulsator and the bottom of the inner barrel.

Therefore, the present invention is mainly to solve the problem of dirt accumulation between the pulsator of the fully automatic pulsator washing machine and the bottom of the inner tub, and further, combined with the self-cleaning scheme of the non-porous inner tub, the overall self-cleaning of the washing machine can be realized and the accumulation of dirt can be eliminated. dead end.

In view of this, the present invention is proposed.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned problems, the purpose of the invention of the present invention is to provide a washing machine inner tub, specifically, the following technical solutions are adopted:

A washing machine, comprising an inner tub that can independently hold washing water during washing, characterized in that the inner surface of the tub bottom of the inner tub is sealed, assembled or integrally formed with a tub bottom protrusion protruding toward the interior of the inner tub, and a tub of the inner tub A drain port is arranged at the bottom, and the washing machine further includes a drain sealing device, which includes a sealing mechanism capable of blocking and sealing the drain port and a driving mechanism for driving the sealing mechanism to open/close the drain port.

Further, the sealing mechanism includes a blocking member and a supporting member, the supporting member is fixedly mounted on the bottom of the inner tub and extends to the drain port, and the blocking member is slidably mounted on the supporting member:

During washing or rinsing, the blocking member is in sealing cooperation with the drain port, and the inner tub independently holds washing water; when draining, the driving mechanism drives the blocking member to open the drain port, and the washing water in the inner tub is discharged from the drain port.

Further, the supporting part includes a fixing part and a sleeve part, the fixing part is fixedly installed at the bottom of the inner tub and extends to the drain port to be fixedly connected with the sleeve part, and the sleeve part has a hollow slide; the blocking part includes a sealing part. The connecting part is slidably arranged in the hollow slideway of the sleeve part to realize the sealing and separation of the sealing part and the water outlet.

Further, the end of the fixing part connected to the sleeve part and the part located inside the water outlet has a smooth structure for the lint to slide down smoothly when draining;

Preferably, the smooth structure is a saddle-shaped structure with high ends and a low middle;

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

Further, the sleeve portion is an inner hollow sleeve, the bottom surface of the blocking member has a circular sealing portion matched with the drain port, and the connecting portion is arranged at the center of the circular sealing portion. The center rod, the center rod is inserted into the sleeve and can slide relatively;

Preferably, the blocking member further includes a sealing gasket, and the sealing gasket is arranged on the annular sealing portion.

Further, the sealing mechanism includes an elastic member, one end of the elastic member stops against the support member, and the other end stops against the blocking member, and the elastic member deforms when the blocking member slides to a state of being separated from the water outlet. , to achieve the elastic reset seal of the plugging parts;

Preferably, an initial state of the elastic member is in a compressed state, so as to maintain a sealing fit between the blocking member and the water outlet.

Further, the elastic member is a compression spring, the end of the central rod of the blocking member is installed with a fixing buckle, and the upper end of the sleeve portion has a limit step extending toward the interior of the hollow slide for a certain distance. The compression spring is sleeved on the central rod, one end is abutted against the fixing buckle, and the other end is abutted against the limit step.

Further, the washing machine includes a water collecting device arranged outside the inner tub, the driving mechanism is installed on the water collecting device and corresponds to the sealing mechanism, and the driving mechanism has an output end that can be retracted up and down:

When washing or rinsing, the output end of the driving device is retracted, the sealing mechanism is in sealing cooperation with the water outlet, and the inner tub independently holds washing water; when the water is drained, the output end of the driving device is extended to open the sealing mechanism and the water outlet. Separation, the drain opening is opened, and the washing water in the inner tub flows out from the drain opening to the water collecting device for discharge.

Further, it also includes a locking mechanism installed on the water collecting device, the locking mechanism has a locking rod that moves up and down, and the outer wall of the bottom of the inner tub is provided for cooperating with the locking mechanism to lock the inner tub After the inner barrel is locked, the output end of the driving device extends out, and the sealing mechanism is pushed up for drainage.

Further, the water outlet is provided on the bottom of the inner tub at a position close to the edge, and the water outlet is inscribed with the circumference of the outer contour of the bottom of the tub.

In the inner tub of the washing machine of the present invention, the closed design of the tub body enables the inner tub to independently hold washing water during washing/rinsing, avoids water storage between the inner tub and the outer tub, and solves the problem of dirt accumulation between the inner tub and the outer tub.

The inner tub of the washing machine of the present invention cancels the pulsator that can rotate relative to the inner tub, and instead is sealed and assembled on the inner surface of the tub bottom or integrally formed with a tub bottom protrusion protruding toward the interior of the inner tub, and/or the inner surface of the tub is sealed and assembled or An integrally formed tub body protruding portion protrudes toward the interior of the inner tub. During washing, the tub bottom protruding portion and/or the tub body protruding portion is driven by the rotation of the inner tub to drive the water flow and the clothes to follow the movement to realize washing/rinsing.

The inner tub of the washing machine of the present invention is sealed and assembled on the inner surface of the tub bottom or integrally formed with a tub bottom protrusion protruding toward the interior of the inner tub, and/or the inner surface of the tub is sealed and assembled or integrally molded with a tub body protruding toward the interior of the inner tub. At the outlet, the pulsator is eliminated, which solves the problem of easily storing dirt between the pulsator and the bottom of the bucket, and the protruding part of the bottom of the bucket and/or the protruding part of the bucket body drives the water flow and the laundry along with the movement to achieve washing/rinsing, Ensure the effect of laundry.

The drainage sealing device of the present invention is designed on the structure of the inner tub itself, and the blocking part of the sealing mechanism can make the inner tub self-sealing, and when the washing machine is working, water will not be stored between the inner tub and the outer tub to prevent pollution. At the same time, it is also an application of water-saving technology for users. In addition, after the inner barrel is self-sealed by the sealing mechanism, the driving motor can drive the inner barrel to rotate.

Description of drawings

Figure 1 is a schematic diagram of the structure of an existing fully automatic pulsator washing machine;

2 is a schematic structural diagram of a washing machine according to an embodiment of the present invention;

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

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

5 is a schematic structural diagram of a washing machine according to Embodiment 2 of the present invention;

FIG. 6 is a partial enlarged view of FIG. 5 of the washing machine according to the second embodiment of the present invention (the drain outlet is closed);

Fig. 7 is a partial enlarged view in Fig. 5 of the washing machine according to the second embodiment of the present invention (the drain outlet is open state).

Detailed ways

Below in conjunction with accompanying drawing, a kind of washing machine of the present invention is described in detail:

Example 1

As shown in FIG. 2-FIG. 4, the present embodiment provides an inner tub of a washing machine, including a tub bottom 4 and a tub body 2, the tub body 2 has a closed area, and the closed area and the tub bottom 4 together form a can independently hold washing water The inner surface of the bucket bottom 4 is sealed and assembled or integrally formed with a bucket bottom protrusion 8 that protrudes toward the interior of the inner bucket, and/or the inner surface of the bucket body 2 is sealed and assembled or integrally formed with a protruding portion toward the interior of the inner bucket. The barrel protruding part 7.

In the inner tub of the washing machine of this embodiment, the closed design of the tub body 2 enables the inner tub to independently hold washing water during washing/rinsing, avoiding the storage of water between the inner tub and the outer tub, and solving the problem of storing dirt and dirt between the inner tub and the outer tub. question.

In addition, the inner tub of the washing machine of the present embodiment cancels the pulsator that can rotate relative to the inner tub, and instead is sealed and assembled on the inner surface of the tub bottom 4 or integrally formed with a tub bottom protruding portion 8 protruding toward the interior of the inner tub, and/or the tub The inner surface of the body 2 is sealed and assembled or integrally formed with a barrel body protrusion 7 protruding toward the interior of the inner barrel. During washing, the barrel bottom protrusion 8 and/or the barrel body protrusion 7 are driven by the rotation of the inner barrel to drive the water flow and clothes. With movement, wash/rinse is achieved. The inner tub of the washing machine in this embodiment is sealed and assembled on the inner surface of the tub bottom 4 or integrally formed with a tub bottom protrusion 8 protruding toward the interior of the inner tub, and/or the inner surface of the tub body 2 is sealed and assembled or integrally molded with a convex portion toward the interior of the inner tub. The protruding part 7 of the barrel body that comes out eliminates the pulsator, which solves the problem that dirt is easily hidden between the pulsator and the bottom of the barrel 4, and drives the water flow and The laundry is washed/rinsed with the movement, ensuring the effect of laundry.

The tub bottom protrusion 8 on the tub bottom 4 in this embodiment may be a separate component, but needs to be in sealing contact with the tub bottom 4 to prevent washing water from entering between the two, and may also be integrally formed by the tub bottom 4 .

Similarly, the barrel protrusion 7 on the barrel 2 in this embodiment can be a separate component, but it needs to be in sealing contact with the barrel 2 to prevent washing water from entering between the two. One-piece construction.

The protruding part 8 at the bottom of the tub in this embodiment is mainly to realize the up and down tumbling of the washing water and drive the up and down movement of the clothes. The protruding part 7 of the tub body is mainly to realize the circumferential tumbling of the washing water and drive the circumferential movement of the clothes. . The tub bottom protruding portion 8 and the tub body protruding portion 7 in this embodiment can be provided at the same time or alternatively. Preferably, the tub bottom protruding portion 8 and the tub body protruding portion are simultaneously provided in the inner tub of the washing machine in this embodiment. 7. Enrich the water flow and improve the washing effect.

As shown in FIG. 3 , the barrel bottom protruding portion 8 in this embodiment is formed by an integral molding structure on the inner surface of the barrel bottom 4 , the barrel bottom protruding portion 8 includes at least one, and the barrel bottom protruding portion 8 includes The edge of the bottom of the barrel gradually rises toward the center of the rising section 12 and the bottom of the barrel from the center to the edge of the descending section 11 gradually decreased. The structure of the protruding portion 8 at the bottom of the barrel in this embodiment can make the water flow up and down during rotation, and in addition, it can drive the clothes to rise to the highest position along the ascending section 12 and then drop along the descending section 11, so that the clothes are subjected to a certain degree of stress. Beat, improve the washing effect of clothes.

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 circumferential direction of the barrel bottom to further enhance the agitation of the water flow and improve the protection of the clothes. washing effect.

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

In this embodiment, a plurality of drains 14 are designed on the bottom 4 of the bucket, and the drains 14 can be designed to be small, so as to have a certain filtering effect of lint during drainage, so as to avoid clogging of lint. The plurality of drains 14 are distributed inside the same ring 13 , mainly to facilitate sealing of the drains 14 .

Preferably, the drain port 13 is arranged on the bottom of the tub 4 near the edge, and at least one drain port 13 is inscribed with the periphery of the edge of the bottom of the tub 4 , or the ring 13 and the contour of the edge of the bottom of the tub 4 are inscribed. Circumferential cut. In this way, it can be ensured that the drain port 13 is located at the lowest position of the tub bottom 4, and the water in the inner tub of the washing machine can be completely drained to avoid residual water.

As an implementation of this embodiment, the barrel protrusion 7 in this embodiment is formed by an integral molding structure on the inner surface of the barrel 2, and the barrel protrusion 7 is along the central axis of the inner barrel. parallel. In this embodiment, the barrel body protrusion 7 is integrally formed with the barrel body 2, so as to avoid a gap in the assembly of the two, without considering the sealing problem, the assembly is simpler, and the problem of dirt accumulation is completely eliminated.

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 circumferential direction of the barrel body 2 to further enhance the stirring water flow and improve the washing of clothes. Effect.

The inner tub of the washing machine in this embodiment rotates during the washing and dehydration process. Therefore, the position of the drain port 13 in the inner tub is uncertain as the inner tub rotates. In order to ensure the accurate sealing and opening of the drain port, the bottom 4 of the tub in this embodiment is A locking hole is set on the outer wall of the inner barrel for cooperating with the locking mechanism to lock the inner barrel, so that the inner barrel is locked to a certain position through the cooperation of the locking mechanism and the locking hole, so as to ensure that the water outlet 13 is opened at the same position. .

In this embodiment, the barrel bottom 4 and the barrel body 2 are formed into a sealing structure through structural cooperation or integral molding.

The upper part of the closed area of the barrel body 2 of this embodiment is provided with a dehydration hole, and the position of the dehydration hole is higher than the highest water level that can hold water in the inner barrel. In this way, the washing water is only inside the inner barrel during washing/rinsing, and the inner barrel rotates at a high speed during dehydration. , the water in the inner barrel rises along the barrel wall to the dehydration hole under the centrifugal force and comes out.

Preferably, the dehydration hole is arranged at the mouth of the inner barrel, and after the gimbal ring is installed on the mouth of the inner barrel, the gimbal ring can hide the dehydration hole, so as to realize the structure of the inner barrel without holes in appearance.

Preferably, the locking hole is a blind hole.

As shown in FIG. 2 , the present embodiment also provides a washing machine with the inner tub of the washing machine, including a driving motor 6 , the central axis of the inner tub is vertically arranged, the tub opening of the inner tub is upward, and the output shaft 10 of the driving motor 6 is The bottom 4 of the barrel is fixedly connected to the inner barrel, and the inner barrel is directly driven to rotate.

The washing machine of the present invention adopts the way that the drive motor 6 directly drives the inner tub to rotate, without the reducer, and the output shaft of the drive motor 6 is installed on the outer tub, and can be matched with the outer tub through a bearing.

The washing machine of this embodiment adopts a non-porous inner tub, and the inner tub can independently hold washing water during washing, so the outer tub used for water storage in the existing fully automatic washing machine is no longer required or can be improved in terms of structure. It also includes a water collecting device with an open water collecting chamber, at least the bottom 4 of the inner tub is arranged in the water collecting chamber for collecting the washing water discharged from the inner tub; the driving motor 6 is installed on the bottom of the water collecting device. At the bottom, the output shaft 10 of the drive motor 6 is directly and fixedly connected to the bottom 4 of the inner tub through the water collecting device.

The main functions of the water collecting device of this embodiment are:

1. It is used to collect the water discharged from the inner barrel and discharge it, including the water discharged from the water outlet and the water discharged from the dehydration hole.

2. It is used for the installation of the bottom structural parts of the bucket such as the drive motor 6 and the drain valve.

3. It is used for the hoisting of the shock-absorbing boom to realize the installation of the inner barrel.

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

The output shaft 10 of the drive motor 6 in the present embodiment is fixedly connected to the tub bottom 4 of the inner tub by fixing screws 9 .

In order to enhance the connection strength between the output shaft 10 and the tub bottom 4 and prevent the output shaft 10 from directly transmitting the rotational torque to the tub bottom 4 to cause deformation of the tub bottom, a bracket is fixedly installed below the tub bottom 4. Further, in order to prevent the The 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, protruding from the lower surface of the barrel bottom 4, and the bracket and the barrel bottom 4 are designed to extend downward. The lower part of the barrel body 2 is fixedly connected by radially installed fixing screws 9 , so that the bracket is fixed under the barrel bottom 4 .

In the washing machine of the present embodiment, due to the canceled deceleration clutch, the drive motor needs to bear a relatively large load torque. Therefore, a motor with a relatively large output torque is selected. As an implementation of this embodiment, the drive motor of this embodiment adopts a direct drive motor, and further, a direct drive variable frequency motor is adopted.

The washing machine of this embodiment further includes a drain sealing device disposed on the water collecting device, and the drain sealing device includes a sealing mechanism capable of blocking and sealing the drain port and a driving mechanism for driving the sealing mechanism to open/close the drain port.

The washing machine of this embodiment further includes a locking mechanism, the locking mechanism is arranged on the water collecting device, the locking mechanism has a locking rod that moves up and down, and the locking rod is raised and inserted into the locking hole of the inner tub to lock the inner tub of the washing machine.

This embodiment also provides a control method for the washing machine. During the washing process, the washing machine controls the drive motor to drive the inner tub to rotate in forward and reverse directions. During the dehydration process, the washing machine controls the drive motor to drive the inner tub to rotate at high speed in one direction for dehydration.

Further, during the washing process, the washing machine controls the inner tub to rotate in the forward direction at the first acceleration for a first set time, after the forward rotation ends, controls the inner tub to rotate in the reverse direction at the second acceleration for the second set time, and after the reverse rotation ends, it rotates again. Perform a forward rotation and cycle through it;

Preferably, with the increase/decrease of the load of the washing machine, the one-way action time and stop time of the driving motor can be adjusted accordingly, and have a positive correlation with the load of the washing machine;

Preferably, the one-way action time of the drive motor is 1.5-5S, and the one-way stop time of the drive motor is 1.5-5S;

Further preferably, the time for the one-way action of the driving motor is 2-4 s, and the time for the one-way stop of the driving motor is 2-4 s.

When the washing action starts, the drive motor drives the inner barrel parts to rotate in a forward direction with a large acceleration, and the water flow and the clothes move up and down under the driving of the barrel bottom protrusion 8 on the barrel bottom 4, and are driven by the barrel body protrusion 7. Circumferential movement, so that the combination of up and down movement and circumferential movement forms a three-dimensional washing effect. After the forward action is over, the inner barrel and the water flow will start to rotate in the reverse direction after the forward speed is low or stopped. At the end of the reverse action, after the reverse speed of the inner bucket and the water flow is low or stopped, the forward rotation is started, and this cycle is repeated.

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

Embodiment 2

As shown in FIGS. 5 , 6 and 7 , a washing machine of the present embodiment includes an inner tub that can independently hold washing water during the washing process, and the inner surface of the tub bottom 4 of the inner tub is sealed and assembled or integrally formed to face the interior of the inner tub. The protruding tub bottom bulge 8, the tub bottom 4 of the inner tub is provided with a drain port 14, the washing machine further includes a drain sealing device, and the drain sealing device includes a sealing mechanism that can seal the drain port and a driving sealing mechanism to open/close the drain The drive mechanism of the mouth.

Further, the sealing mechanism described in this embodiment includes a blocking member 24 and a supporting member 26, the supporting member 26 is fixedly installed at the bottom of the inner tub and extends to the drain port, and the blocking member 24 is slidably installed on the supporting member :

During washing or rinsing, the blocking member is in sealing cooperation with the drain port, and the inner tub independently holds washing water; when draining, the driving mechanism drives the blocking member to open the drain port, and the washing water in the inner tub is discharged from the drain port.

The drainage sealing device of this embodiment is designed on the structure of the inner tub itself, and the blocking part of the sealing mechanism can make the inner tub self-sealing. When the washing machine is working, water will not be stored between the inner tub and the outer tub to prevent contaminated water. At the same time, it is also an application of water-saving technology for users. In addition, after the inner barrel is self-sealed by the sealing mechanism, the driving motor can drive the inner barrel to rotate.

As an implementation of this embodiment, the support member 26 includes a fixing portion and a sleeve portion, the fixing portion is fixedly installed at the bottom of the inner tub and extends to the drain port to be fixedly connected with the sleeve portion, and the sleeve portion has a hollow slideway; The blocking part 24 includes a sealing part and a connecting part, and the connecting part is slidably arranged in the hollow slideway of the sleeve part to realize the sealing and separation of the sealing part and the water outlet.

Further, the end of the fixing portion connected to the sleeve portion and the portion located inside the water outlet has a smooth structure for the lint to slide down smoothly during drainage.

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

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

Specifically, the sleeve part is an inner hollow sleeve, the bottom surface of the blocking member 24 has an annular sealing part matched with the water outlet, and the connecting part is arranged at the center of the annular sealing part The central rod is inserted into the sleeve and can slide relatively.

Preferably, the blocking member 24 further includes a sealing gasket 25, and the sealing gasket 25 is arranged on the annular sealing portion.

In order to maintain the self-sealing of the blocking member 24 and the reset sealing after opening the water outlet, the sealing mechanism includes an elastic member 27, one end of the elastic member 27 abuts against the supporting member 26, and the other end abuts against the blocking member 24. The elastic member 27 is deformed when the blocking member 24 slides to a state of being separated from the water outlet, so as to realize the elastic reset and sealing of the blocking member 24.

Preferably, the initial state of the elastic member 27 is in a compressed state, so as to maintain the sealing fit between the blocking member 24 and the water outlet.

As an implementation of this embodiment, the elastic member 27 is a compression spring, the compression spring is sleeved in the hollow slideway of the sleeve portion, one end of the compression spring stops against the sleeve portion, and the other end abuts against the blocking member 24 .

Further, a fixing buckle 28 is installed at the end of the central rod of the blocking member 24 , the upper end of the sleeve portion 1 has a limit step extending toward the interior of the hollow slide for a certain distance, and the compression spring is sleeved on the central rod. On the upper side, one end stops against the fixing buckle 28, and the other end stops against the limiting step.

The blocking member in this embodiment includes a top cover, the upper end surface of the top cover is a circular arc surface, and the lower end surface of the top cover has a sealing portion that is sealingly matched with the water outlet.

The working principle of the seal: the compression spring is compressed, one end of the force acts on the support member 26, and the other end acts on the fixed buckle 28. The fixed buckle 28 is transmitted to the entire blocking member 24 through the central rod of the blocking member 24, and the blocking member 24 Under the action of the spring force, the drainage port at the bottom of the barrel is pressed to achieve a sealing effect. As shown in Figure 6.

The working principle of drainage: When preparing to drain, the inner barrel passes through a locking mechanism to achieve the positional coincidence of the sealing structure and the driving mechanism. At this time, the output end 29 of the driving mechanism is pushed to the fixing buckle 28, which drives the top cover to move up, and the top cover and the A gap is created between the drains to achieve drainage. At this time, the compression spring is also compressed to the limit position. After the drainage is completed, the output end 29 of the driving mechanism is retracted, and the top cover re-seals the drainage opening under the action of the spring force. As shown in Figure 7.

In the design of the drainage sealing device of this embodiment, the inner barrel and the gasket are all tapered, so that when the clothes gather near the drainage outlet, under the impact of the water flow and the action of the gravity of the foreign object itself, it is more convenient for foreign objects of discharge. It is also beneficial to prevent the accumulation of lint during long-term operation.

The sealing rubber pad is fixed to the top of the entire sealing structure, considering that when the foreign matter is discharged close to the bottom of the inner barrel, the inner barrel is made of metal stainless steel, and its frictional damping is smaller than that of the rubber, which is more conducive to the discharge of foreign matter. It is also beneficial to prevent the accumulation of lint during long-term operation.

The support member 26 adopts a saddle-shaped structure to prevent foreign objects from being caught if they come into contact with the brackets when they are discharged from the inner tub, assuming that the brackets are flat. The semi-circular structure design reduces damping, which is also beneficial to prevent the accumulation of lint during long-term operation.

The sleeve part of the support part 26 can be over-fitted with the central rod of the blocking part 24, which can effectively prevent lint and foreign objects from entering the spring cavity and cause the spring to be stuck when working.

Preferably, a drain valve can be selected for the drive mechanism, and the resistance of the drain valve should be larger than the diameter of the inner cylinder of the fixing buckle 700 to ensure that the thrust force of the drain valve acts on the fixing buckle and prevents the thrust from directly acting on the fixing buckle. On the central rod of the blocking member 100, there is a hidden danger of falling off. Here, it can also be fixed by threaded fitting, and fixed by elastic snaps.

The washing machine of this embodiment includes a water collecting device disposed outside the inner tub, and the drainage sealing device also includes a driving mechanism. The driving mechanism is installed on the water collecting device and corresponds to the sealing mechanism. The driving mechanism has an output end 29 that can be retracted up and down. :

When washing or rinsing, the output end of the driving mechanism retracts, the sealing mechanism is sealed with the channel drain, and the inner tub independently holds washing water; when draining, the output end of the driving mechanism extends to push the sealing mechanism away from the channel. The drain is separated, and the channel drain is opened for drainage.

The driving mechanism also includes a reciprocating part 30 that can reciprocate up and down and a power part 31 that drives the reciprocating part. The output end 29 is an ejector rod, and the ejector rod is connected to the reciprocating part.

Further, as shown in FIG. 5 , the outer wall of the bottom of the inner tub is provided with a locking hole 16 for cooperating with the locking mechanism 17 to lock the inner tub, and the washing machine also includes a water collecting device. The locking mechanism has a locking rod that moves up and down, and the locking rod moves upward and is inserted into the locking hole to lock the inner barrel, and the output end of the drive device extends to push the sealing mechanism to drain water.

The above embodiments can be tried individually, or can be combined with each other to form more combined solutions.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, personnel can make some changes or modifications to equivalent examples of equivalent changes by using the above-mentioned technical content, but any content that does not depart from the technical solution of the present invention is based on the technical solution of the present invention. Substantially any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (10)

1. A washing machine comprises an inner barrel capable of independently containing washing water in a washing process, and is characterized in that a barrel bottom protruding part protruding towards the inner part of the inner barrel is assembled on the inner surface of the barrel bottom of the inner barrel in a sealing mode or is integrally formed, a water outlet is formed in the barrel bottom of the inner barrel, the washing machine further comprises a water drainage sealing device, and the water drainage sealing device comprises a sealing mechanism capable of sealing and sealing the water outlet and a driving mechanism for driving the sealing mechanism to open/close the water outlet.

2. The washing machine as claimed in claim 1, wherein the sealing mechanism includes a blocking member and a supporting member, the supporting member is fixedly installed at the bottom of the inner tub and extends to the drain port, the blocking member is slidably installed on the supporting member:

when washing or rinsing, the plugging component is in sealing fit with the water outlet, and the inner barrel independently holds washing water; when the washing water is drained, the driving mechanism drives the blocking component to open the water outlet, and the washing water in the inner barrel is drained from the water outlet.

3. The washing machine as claimed in claim 2, wherein the support member includes a fixing part fixedly installed at the bottom of the inner tub and extended to the drain port to be fixedly connected with the sheathing part, the sheathing part having a hollow chute; the plugging component comprises a sealing part and a connecting part, wherein the connecting part is arranged in the hollow slide way of the sleeving part in a sliding manner, so that the sealing part is sealed and separated from the water outlet.

4. The washing machine as claimed in claim 3, wherein a portion of the fixing part at one end connected with the sheathing part and inside the drain opening has a smooth structure for the lint to smoothly slide down when draining water;

preferably, the smooth structure is a saddle-shaped structure with two high ends and a low middle part;

further preferably, the upper surface of the smoothing structure is a circular arc surface which is bent downwards.

5. The washing machine as claimed in claim 3, wherein the sheathing part is a sleeve having a hollow inside, the bottom surface of the blocking part has a ring sealing part fitted to the drain port, the connecting part is a center rod disposed at a center of the ring sealing part, and the center rod is inserted into the sleeve and is relatively slidable;

preferably, the plugging component further comprises a sealing gasket, and the sealing gasket is arranged on the annular sealing part.

6. A washing machine as claimed in any one of claims 1 to 5 wherein the sealing mechanism comprises a resilient member having one end abutting against the support member and the other end abutting against the closure member, the resilient member being deformed when the closure member slides to a position spaced from the drain opening to effect resilient return sealing of the closure member;

preferably, the resilient member is initially in a compressed state to maintain a sealing engagement between the closure member and the drain opening.

7. A washing machine as claimed in claim 6 wherein the resilient member is a compression spring, the end of the central rod of the blocking member is provided with a retaining buckle, the upper end of the nesting portion has a stop step extending a distance into the hollow chute, the compression spring is nested on the central rod with one end abutting against the retaining buckle and the other end abutting against the stop step.

8. A washing machine as claimed in any one of claims 1 to 7, comprising a water collecting unit provided outside the inner tub, wherein the driving mechanism is mounted on the water collecting unit corresponding to the sealing mechanism, and has an output end which is extendable and retractable up and down:

when washing or rinsing, the output end of the driving device retracts, the sealing mechanism is in sealing fit with the water outlet, and the inner barrel independently holds washing water; when the water is drained, the output end of the driving device extends out to push the sealing mechanism open to be separated from the water outlet, the water outlet is opened, and the washing water in the inner barrel flows out of the water collecting device through the water outlet to be drained.

9. The washing machine as claimed in claim 8, further comprising a locking mechanism mounted on the water collecting device, the locking mechanism having a locking rod moving up and down, a locking hole for locking the inner tub by cooperating with the locking mechanism is provided on an outer wall of a bottom of the inner tub, and the locking rod moves up and is inserted into the locking hole to lock the inner tub, and then an output end of the driving device is protruded to push the sealing mechanism open for draining.

10. The washing machine as claimed in any one of claims 1 to 9, wherein the drain port is provided at a position near the rim on the bottom of the inner tub, and the drain port is inscribed in the circumference of the rim of the bottom of the inner tub.

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