CN111058246B - Washing machine drainage device and washing machine - Google Patents

Abstract

The invention discloses a washing machine drainage device and a washing machine. The drainage device includes a valve sealing unit, which is movably installed on the drain port of the washing tub to seal the drain port; unit to control the opening and closing of the drain; the locking unit, located under the washing tub, can move closer to/away from the washing tub to block/release the rotation of the washing tub; the driving unit is the shared drive of the valve opening unit and the locking unit Components, synchronously drive the valve opening unit and the locking unit to move closer to/away from the washing tub through the transmission member. At the position where the locking unit is far away from the washing tub, the minimum distance between the locking unit and the locking position of the washing tub is smaller than that of the valve opening unit and the valve sealing unit the minimum distance. The washing machine of the invention drives the locking unit and the valve opening unit of the drainage device synchronously, and the washing bucket is locked first, and then the drain port is opened at intervals, so that the control is more concise and smooth, and the failure rate is reduced.

Description

Washing machine drainage device and washing machine

technical field

The invention belongs to the field of washing, and in particular relates to a drainage device and a washing machine with the drainage device.

Background technique

In the existing pulsator washing machine, a plurality of dehydration holes are arranged on the peripheral wall of the inner tub, and the inner tub and the outer tub are connected. The inner tub is a clothes storage area for washing clothes. Water does not participate in washing, and the water that really participates in washing is the part in the inner tub, which causes a huge waste of water resources. In addition, too much water between the inner tub and the outer tub will also reduce the concentration of detergent and affect the washing effect. At the same time, due to the frequent flow of water in and out between the inner barrel and the outer barrel, after continuous use, the area between the side walls of the inner barrel and the outer barrel has also become a space for dirt. The cellulose of clothes, the organic matter of the human body and the dust and bacteria brought in by the clothes are very likely to stay between the side walls of the inner tub and the outer tub. These molds are caused by a large amount of dirt accumulated inside the washing machine that has been used for a long time and cannot be effectively removed to breed and reproduce. If the dirt that is invisible to the user is not removed, the bacteria will adhere to the clothes again after the next wash. Bring to the human body, causing the problem of cross-infection.

In response to this situation, some manufacturers have made improvements. In order to save water resources, more and more washing machines use the method of non-porous inner tubs, so that the inner and outer tubs are separated, and only the inner tub is used to store water, while the outer tub has no water. The upper end of the side wall of the inner tub is provided with drainage holes or the water is guided out through a top-down water guide channel, so that when the washing machine dehydrates, the water is thrown on the inner wall of the inner tub due to the centrifugal force and moves upward along the inner wall of the inner tub. Drain directly from the drainage hole at the upper end of the inner tub or lead out through the water guide channel, which improves the water saving effect of the washing machine and saves the amount of detergent used, and can also avoid cross-contamination of clothes caused by bacteria growing between the inner and outer tubs.

Although the above-mentioned structure has been improved compared with the traditional washing machine, it still has the following defects: the drainage can only rely on driving the inner bucket to rotate so that the water is discharged from the upper outlet hole, and the drainage time is long; in addition, the driving device needs to work during the drainage process, which consumes electricity Relatively high; Finally, after long-term use, sedimentary dirt such as sediment particles cannot be discharged and accumulate in the inner bucket. If the accumulation is too much, it is easy to breed bacteria to contaminate the clothes again, and even wear the clothes or parts in the inner bucket, such as waves Axle seal parts, etc.

In order to solve the above-mentioned technical problems, in the technology previously developed by the applicant, a drain port is provided at the bottom of the inner tub, and a drain mechanism that can be opened and closed is provided at the drain port. In order to enable the drain mechanism to cooperate with the drain port to achieve sealing, a A locking mechanism that limits the position of the inner tub. For example, the Chinese patent application number CN201510057876.4 discloses a locking mechanism for the inner tub of a washing machine and a washing machine. The bottom of the inner tub is provided with a first positioning structure, and the bottom of the outer tub is provided with a second positioning structure. , the second positioning structure is a retractable structure, the first positioning structure and the second positioning structure are concave-convex, the inner tub is locked, the first positioning structure and the second positioning structure are disengaged, and the inner tub is unlocked . A locking hole is provided at the bottom of the inner barrel, and at least one retractable locking rod is arranged at the bottom of the outer barrel, the locking rod extends into the locking hole, the inner barrel is locked, and the locking rod comes out of the locking hole, The inner bucket is unlocked. The inner tub is locked during washing, and there is no water between the inner and outer tubs.

Specifically, a locking hole is provided at the bottom of the inner tub, and a retractable locking rod is used to cooperate with the locking hole. Locking hole, the inner barrel contacts and locks.

Wherein, when the inner tub is locked, the drain mechanism is used to close the drain outlet of the inner tub, and when the inner tub rotates, the drain mechanism opens the drain outlet of the inner tub, and the water in the inner tub first flows into the outer tub through the drain outlet, and then is discharged from the outer tub, but In this structure, the locking mechanism and the draining mechanism are driven separately, and the locking rod is first driven to extend out and lock the inner tub with the concavity and convexity of the locking hole, and then the draining mechanism is controlled to seal the drain outlet of the inner tub. The structure is complex, and two sets of driving mechanisms must be used to drive the locking mechanism and the drainage mechanism respectively, which leads to high production costs; in addition, the control is complicated and requires high control accuracy; moreover, the sealing effect of the drainage port is poor, and water leakage is easy.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a drainage device with an integrated structure of a locking unit and a valve opening unit, low cost and high installation efficiency.

Another object of the present invention is to provide a washing machine with the drainage device.

In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a washing machine drainage device, comprising:

The valve sealing unit is movably installed on the drain port of the washing tub to seal the drain port;

The valve opening unit is located under the washing tub, and can move closer to/away from the valve sealing unit to control the opening and closing of the drain port;

The locking unit is located under the washing tub and can move closer to/away from the washing tub to block/release the rotation of the washing tub;

The drive unit is a common driving part for the valve opening unit and the locking unit, and drives the valve opening unit and the locking unit to approach/away from the washing tub synchronously through the transmission member. At the position where the locking unit is far away from the washing tub, the locking unit and the washing tub The minimum distance of the locked position is smaller than the minimum distance of the valve opening unit and the valve sealing unit.

Further, the washing machine drainage device also includes:

A support unit, the support unit is fixedly installed on the bottom of the washing tub and extends to the drain, and the valve sealing unit can be relatively slidably installed on the support unit;

Preferably, the support unit includes a fixed part and a set part, the fixed part is fixedly installed on the bottom of the washing tub and extends to the drain outlet to be fixedly connected with the set part, and the set part has a hollow slideway; the valve sealing unit includes The sealing part matched with the drain port and the supporting part arranged under the sealing part, the supporting part is slidably arranged in the hollow slideway of the sleeve part, and the sliding of the supporting part is controlled by the valve opening unit to realize the opening and closing of the sealing part and the drain port .

Further, the washing machine drainage device also includes:

An elastic component, one end of the elastic component stops against the support unit, and the other end stops against the valve sealing unit, and the elastic component deforms when the valve sealing unit slides to open the drain port, so as to realize the elastic reset seal of the valve sealing unit;

Preferably, the initial state of the elastic member is in a compressed state, so as to maintain the sealing fit between the valve sealing unit and the drain port.

Further, the washing machine drainage device also includes:

A pressure spring, the pressure spring is sleeved in the hollow slideway of the set part, the upper end of the pressure spring stops against the set part, and the lower end stops against the support part installed in the hollow slideway;

Preferably, the upper end of the support part is connected to the sealing part, and the lower end is installed with a fixing buckle. The upper end opening of the sleeve part has a limit step extending a certain distance toward the inside of the hollow slideway, and the pressure spring is sleeved on the support part. On, the upper end stops at the limit step, and the lower end stops at the fixed buckle.

Further, the sealing part has a sealing cover structure, at least on the bottom surface of the sealing cover there is a sealing ring matched with the drain port, the drain port has a trumpet-shaped structure with a large upper opening and a small lower opening, and the sealing ring has a structure compatible with the drainage port. The tapered sealing end surface fitted with the mouth; the support part is a support rod arranged at the center of the sealing cover, the sleeve part is a hollow sleeve, and the support rod is inserted into the sleeve and slides relatively.

Further, the end of the fixing part connected to the sleeve part and the part inside the drain port 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 low middle;

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

Further, the washing machine drainage device also includes:

A sealing part, the two ends of the sealing part are sealed and installed between the valve sealing unit and the support unit to form a sealed space;

Preferably, the sealing component is a corrugated sleeve, one end of the corrugated sleeve is sealingly connected with the valve sealing unit, and the other end is sealingly connected with the sleeve portion of the support unit, so as to realize the sealing inside the sleeve portion.

Further, the valve opening unit includes a push rod, and the push rod is configured to controlably move upward to open the valve sealing unit;

The locking unit includes a locking rod, and the bottom of the washing tub is provided with a locking recess that matches the upper end of the locking rod;

At the position where the upper end of the locking rod is away from the locking recess of the washing tub, the minimum distance between the upper end of the push rod and the valve sealing unit is greater than the minimum distance between the upper end of the locking rod and the locking recess for effective locking;

Preferably, the upper end of the locking rod is higher than the upper end of the push rod;

Alternatively, the locking recess effectively restricts the position of the locking rod to be lower than the level where the valve sealing unit is interfered by the push rod.

Further, the valve opening unit and the locking unit are movably arranged on the same fixed seat, and are integrated into an integral module structure;

Preferably, the driving unit is fixedly installed on the fixing seat, and is integrated with the valve opening unit, the locking unit, and the fixing seat in an integrated modular structure.

Further, the drive unit is a drive motor, and the transmission member is configured as a transmission structure that converts the rotation output by the drive motor into the reciprocating linear motion of the valve opening unit/locking unit;

Preferably, the transmission member includes a transmission wheel and a transmission rod, the transmission wheel is installed on the drive motor shaft, one end of the transmission rod is eccentrically connected to the transmission wheel, and the other end is connected to the valve opening unit/locking unit;

Alternatively, the transmission member is a screw transmission component.

The present invention also provides a washing machine, which includes a shell, a washing bucket rotatably arranged in the shell, a water receiving tank supporting the washing bucket, and the drain outlet of the washing bucket is located in the water receiving tank; it also includes the washing machine drainage device, the The valve opening unit, the locking unit and the drive unit are installed at the bottom of the water receiving tank.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

The drainage device of the washing machine of the present invention adopts an integrated drive for the locking unit and the valve opening unit of the washing tub, which can realize the locking of the washing tub first and then open it, and avoid the rotation of the washing tub when the locking unit and the valve opening unit act simultaneously on the valve. Damage caused by opening the unit.

The washing machine of the present invention is an improvement on the structure of the "non-porous inner barrel" washing machine. The valve sealing unit of the drainage device can make the washing barrel self-sealing. When the washing machine is working, the washing barrel and the pulsator can realize relative rotation to realize dual-power washing function of clothing.

1. The locking unit and the valve opening unit are driven integrally, the structure is simple, the production cost is saved, the installation is convenient, and the integrated module structure is convenient for installation, which simplifies the process of independent installation of the two components;

2. The minimum distance between the locking unit and the locking position of the washing tub is smaller than the minimum distance between the valve opening unit and the valve sealing unit, so that the drive unit outputs power synchronously. When the locking unit locks the washing tub first, the valve opening unit and the valve sealing The unit also has a certain safety distance to prevent the valve opening unit and the locking unit from blocking the rotation of the washing tub at the same time, causing the valve opening unit to be worn or deformed;

3. The locking unit and the valve opening unit are driven synchronously. The washing bucket is locked first, and then the drain opening is completed at intervals. The control is more concise and smooth, and the failure rate is reduced;

4. The valve sealing unit has good sealing effect, high strength and long service life.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute improper limitations to the present invention. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts. In the attached picture:

Fig. 1 is a schematic diagram of the assembly structure of the washing machine drainage device of the present invention;

Fig. 2 is a partial schematic diagram of A place in Fig. 1;

Fig. 3 is a schematic diagram of the initial state of the cooperation between the drainage device of the present invention and the washing bucket;

Fig. 4 is a schematic diagram of the state where the locking unit of the present invention starts to lock the washing tub;

Fig. 5 is a schematic diagram of the state of sealing the drain port of the valve sealing unit of the present invention;

Figure 6 and Figure 7 are schematic diagrams of the assembly structure of the valve sealing unit and the support unit of the present invention;

Fig. 8 is a schematic diagram of a state in which the valve opening unit of the present invention opens the valve sealing unit;

Fig. 9 is a schematic diagram of the structure of the supporting unit of the present invention.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in FIGS. 1 to 5 , the washing machine of the present invention includes a casing (not shown), a washing tub 1 rotatably arranged in the casing, a water tank 2 supporting the washing tub 1 and a drainage device. The bottom of the washing bucket 1 is provided with a water outlet 3, and the water inlet and the washing process water outlet 3 are closed, and the washing bucket 1 is a bucket for holding water. The drainage device includes a valve sealing unit 4 that can seal the drain port 3, a locking unit 5 that controls the rotation state of the washing tub 1, a valve opening unit 6 that controls the valve sealing unit 4 to open the drain port, and drives the valve opening unit 6 and the locking unit integrally. 5. The driving unit 7 of the action, the driving unit 7 is a common driving part of the valve opening unit 6 and the locking unit 5, and the valve opening unit 6 and the locking unit 5 are synchronously driven to/from the washing tub 1 through the transmission member. 5 away from the washing tub, the minimum distance between the locking unit 5 and the locking position of the washing tub is smaller than the minimum distance between the valve opening unit 6 and the valve sealing unit 4.

The water receiving tank 2 is connected to the shell of the washing machine through a vibration damping unit (not shown in the figure), and the water receiving tank 2 supports the washing tub. The washing water is discharged to the outside of the washing machine through the valve opening unit 6 communicated with the water receiving tank. The damping unit can adopt the suspension rod damping structure of the existing pulsator washing machine, can also adopt the damping damping structure installed in the downward direction of the water receiving tank, or adopt the above-mentioned combination.

The water receiving tank 2 is a barrel-shaped structure, a disc-shaped structure, or is formed by a support plate supported under the washing tub and an annular rib arranged above the support plate; Along the groove structure. As shown in Figure 1, the valve opening unit 6 and the locking unit 5 are arranged at the bottom of the water receiving tank 2, the upper end can pass through the bottom of the water receiving tank 2 movably, and is sealed with the bottom of the water receiving tank 2, and the lower end is movably mounted on the fixed seat 8, the fixed seat 8 is fixedly installed at the bottom of the sink 2.

When the washing machine of the present invention is washed with water, the drain outlet at the bottom of the washing bucket 1 is closed, and the washing bucket 1 is a water-filled bucket. When washing, the pulsator in the washing bucket 1 can be controlled to rotate independently, and the pulsator and the washing bucket can also be controlled. 1 rotate respectively; when draining water, the drain port 3 at the bottom of the washing bucket 1 is opened, and the water in the washing bucket 1 is discharged into the external sink, and then discharged through the drain pipe; when dehydrating, the washing bucket 1 is driven to rotate at a high speed, and the water in the clothes The water is thrown out by the centrifugal force and climbs up along the wall around the washing bucket, and is thrown out from the dehydration hole on the upper part of the wall around the washing bucket, or guided from top to bottom by the water guide channel on the wall of the washing bucket to the outside water receiving tank (in the figure not shown).

The valve sealing unit of the present invention can make the washing bucket self-sealing. When the washing machine is working, no water will be stored between the washing bucket and the sump, preventing cross-contamination. At the same time, it is also an application of water-saving technology for users. In addition, After the washing tub is self-sealed by the valve sealing unit, the washing tub and the pulsator can realize relative rotation, realizing the function of washing clothes with dual power.

Embodiment one

As shown in Figure 6 and Figure 7, the drainage device described in this embodiment also includes a support unit 9, the support unit 9 is fixedly installed on the bottom of the washing tub 1 and extends to the drain port 3 (see Figure 8), the valve sealing unit 4 can be relatively slidably installed on the support unit 9;

As an implementation of this embodiment, the support unit 9 includes a fixed part 91 and a sleeve part 92. The fixed part 91 is fixedly installed on the bottom of the washing tub 1 and extends to the drain outlet to be fixedly connected with the sleeve part 92. The sleeve The part 92 has a hollow slideway 921; the valve sealing unit 4 includes a sealing part 41 matched with the drain port 3 and a supporting part 42 arranged below the sealing part 41, and the supporting part 42 is slidably arranged in the hollow of the sleeve part 92. In the slideway 921 , the valve opening unit 6 controls the sliding of the supporting portion 42 to realize the opening and closing of the sealing portion 41 and the drain port 3 .

Embodiment two

As shown in FIG. 9 , the part B at the end of the fixed part 91 connected with the sleeve part 92 in this embodiment and located inside the drain port 3 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 low middle;

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

One end of the fixed part 91 connected to the sleeve part 92 adopts a saddle-shaped structure to prevent debris such as thread waste from being blocked by the support unit 9 when they are discharged from the washing tub. The smooth structure design above can reduce the resistance when debris such as thread waste falls down , which is conducive to the rapid passage of debris such as lint.

Embodiment three

On the basis of the above-mentioned embodiments, the washing machine drainage device described in this embodiment further includes an elastic component, one end of which is abutted against the support unit 9, and the other end is abutted against the valve sealing unit 4, and the elastic component is The valve sealing unit 4 is deformed when it slides to open the drain port, so as to realize the elastic reset seal of the valve sealing unit 4;

Preferably, the initial state of the elastic member is in a compressed state, so as to maintain the sealing fit between the valve sealing unit 4 and the drain port.

Embodiment four

On the basis of Embodiment 3, as shown in Figures 6 to 8, the elastic component described in this embodiment is a compression spring 10, and the compression spring 10 is sleeved in the hollow slideway 921 of the sleeve part 92, and the compression spring 10. The upper end stops against the sleeve part 92, and the lower end stops against the supporting part 42 installed in the hollow slideway 921;

Preferably, the upper end of the support portion 42 is connected to the sealing portion 41, and the lower end is installed with a fixing buckle 421, and the upper end opening of the sleeve portion 92 has a limit step 922 extending a certain distance toward the inside of the hollow slideway 921. The compression spring 10 is sleeved on the support portion 42 , the upper end stops against the limiting step 922 , and the lower end stops against the fixing buckle 421 .

Embodiment five

As shown in Figure 8, the sealing part 41 described in this embodiment has a structure of a sealing cover 411, at least the bottom surface of the sealing cover 411 has a sealing ring 412 matching with the drain port 3, and the drain port 3 has a large upper opening and a lower opening. Trumpet-shaped structure with a small opening, the sealing ring 412 has a tapered sealing end face matched with the drain port 3; the support part 42 is a support rod arranged at the center of the sealing cover 411, and the sleeve part 92 is an inner A hollow sleeve, the support rod is inserted into the sleeve and relatively slides.

The tapered seal design is adopted, so that when the lint and other debris gather near the drain, it is easier to discharge the lint and other debris under the impact of the water flow, and it is also conducive to preventing the accumulation of the lint and other debris during long-term operation. So as to avoid its impact on the seal.

Embodiment six

Because when draining, the washing water that flows out through the drain port may enter in the sleeve part 92 of the support unit 9. As time goes by, if the line scraps, dirt or sundries of the washing water enter, it may damage the sleeve part 92. 92 internal components, such as compression springs, cause it to fail to work normally, thereby affecting the normal reset and sealing effect of the valve sealing unit 4. Therefore, in order to ensure the relative stability of the working environment of the internal components of the sleeve part 92, the The drainage device described above also includes a sealing member 11, and the two ends of the sealing member 11 are sealed and installed between the valve sealing unit 4 and the support unit 9 to form a sealed space;

The sealing member 11 described in this embodiment is a corrugated sleeve, one end of the corrugated sleeve is sealed and connected with the bottom surface of the sealing cover 411, and the other end is sealed and connected with the sleeve part 92 of the support unit 9, so as to realize the sealing of the inside of the sleeve part 92. seal.

The corrugated sleeve has a sealing effect and can expand and contract with the up and down movement of the sealing cover. The structure is simple and the cost is low, which ensures the sealing and stability of the working environment of the pressure spring inside the sleeve.

Embodiment seven

As shown in FIG. 1 , the valve opening unit 6 described in this embodiment includes a push rod 61 configured to controlably move upward to open the valve sealing unit 4 . The locking unit 5 includes a locking rod 51, and the bottom of the washing tub 1 is provided with a locking recess 12 that matches the upper end of the locking rod 51;

At the position where the upper end of the locking rod 51 is away from the locking recess 12 of the washing tub 1, the minimum distance between the upper end of the push rod 61 and the valve sealing unit 4 is greater than the minimum distance between the upper end of the locking rod 51 and the locking recess 12 for effective locking.

Further, the upper end of the locking rod 51 is higher than the upper end of the ejector rod 61, and the height difference is H (refer to FIG. 3 to FIG. 5 ).

And/or, the locking recess 12 effectively limits the position of the locking rod 51 to be lower than the horizontal plane where the valve sealing unit 4 is interfered by the push rod.

The washing machine in this embodiment uses the valve sealing unit 4 to normally close the drain port 3, and only during the drainage process, the push rod 61 is used to move upward to open the valve sealing unit 4 to perform drainage. Therefore, the washing tub 1 of the present invention is in the process of water intake and washing. The drain port 3 is closed by the valve sealing unit 4. During this process, the washing machine can drive the washing tub to rotate, and more types of washing water flow can be obtained by cooperating with the rotation and/or rotation mode of the pulsator. During dehydration, the drive unit 7 integrally drives the locking rod 51 and the ejector rod 61 to descend, the valve sealing unit 4 resets and seals the water outlet 3, the washing tub is released from restriction, and the high-speed rotation of the dehydration can be controlled.

Embodiment eight

The locking recess 12 at the bottom of the washing tub 1 described in this embodiment is a locking hole, or is a blocking portion provided at the bottom of the washing tub 1 to form a limiting recess for blocking the locking rod. The locking hole described in this embodiment is provided on the flange plate 13 at the bottom of the washing bucket (refer to FIG. 1 and FIG. 2 ).

Embodiment nine

As shown in FIG. 1 , the valve opening unit 6 and the locking unit 5 according to the present invention are integrated into an integral module structure, and are movably arranged on the same fixed seat 8 . The push rod 61 and the locking rod 51 are telescopically arranged on the fixed base 8 up and down.

Preferably, the driving unit 7 is fixedly installed on the fixing seat 8, and is integrated with the valve opening unit 6, the locking unit 5, and the fixing seat 8 in a modular structure.

Embodiment ten

The driving unit 7 in the present invention is a driving motor, and the transmission member 14 is configured as a transmission structure that converts the rotation output by the driving motor into the reciprocating linear motion of the valve opening unit 6/locking unit 5 .

Preferably, as shown in Figure 2, the transmission member 14 includes a transmission wheel 141 and a transmission rod 142, the transmission wheel 141 is installed on the drive motor shaft, one end of the transmission rod 142 is eccentrically and movably connected to the transmission wheel 141, and the other end is connected to the valve opening unit 6 /locking unit 5 is movably connected.

Alternatively, the transmission member 14 is a screw transmission component.

Embodiment Eleven

As shown in Figure 1, a balance ring 15 is provided on the upper part of the washing bucket 1 according to the present invention. In order to prevent the water that climbs up by the centrifugal force from being thrown out from the connection between the washing bucket 1 and the balance ring 15 to cause splashing, the balance ring 15 is connected with the balance ring 15. The upper end of the washing bucket 1 is sealed and connected. The seal between the outer wall of the balance ring 15 and the inner peripheral wall of the upper end of the washing bucket 1 can be adopted, or the balance ring 15 can be used to support the upper edge of the washing bucket 1, and an end face seal is arranged between the two, or a combination of two groups, or, through The way of rolling and wrapping, the way of sandwiching the sealing ring, etc. can realize the sealing of the two.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes. In essence, 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 (14)

1. A washing machine drainage device, characterized in that: comprising, The valve sealing unit is movably installed on the drain port of the washing tub to seal the drain port; The valve opening unit is located under the washing tub, and can move closer to/away from the valve sealing unit to control the opening and closing of the drain port; The locking unit is located under the washing tub and can move closer to/away from the washing tub to block/release the rotation of the washing tub; The drive unit is a common driving part for the valve opening unit and the locking unit, and drives the valve opening unit and the locking unit to approach/away from the washing tub synchronously through the transmission member. At the position where the locking unit is far away from the washing tub, the locking unit and the washing tub The minimum distance of the locked position is less than the minimum distance between the valve opening unit and the valve sealing unit; The support unit is fixedly installed on the bottom of the washing tub and extends to the drain. The valve sealing unit can be relatively slidably installed on the support unit. The support unit includes a fixed part and a sleeve part. The fixed part is fixedly installed on the washing The bottom of the barrel extends to the drain port and is fixedly connected with the sleeve part, which has a hollow slideway; the valve sealing unit includes a seal part matched with the drain port and a support part arranged under the seal part, and the support part can slide It is arranged in the hollow slideway of the sleeve part, and the opening and closing of the sealing part and the drain port are realized by controlling the sliding of the support part through the valve opening unit; One end of the fixing part connected to the sleeve part and the part inside the drain port has a smooth structure for the lint to slide down smoothly when draining. The smooth structure is a saddle-shaped structure with two ends high and the middle low. 2. The washing machine drainage device according to claim 1, further comprising: An elastic component, one end of the elastic component stops against the support unit, and the other end stops against the valve sealing unit, and the elastic component deforms when the valve sealing unit slides to open the drain port, so as to realize the elastic reset seal of the valve sealing unit. 3. The washing machine drainage device according to claim 2, characterized in that: the initial state of the elastic member is in a compressed state, so as to maintain the sealing fit between the valve sealing unit and the drain port. 4. The washing machine drainage device according to claim 1, further comprising: A pressure spring, the pressure spring is sleeved in the hollow slideway of the sleeve part, the upper end of the pressure spring stops against the sleeve part, and the lower end of the pressure spring stops against the support part installed in the hollow slideway. 5. The washing machine drainage device according to claim 4, characterized in that: the upper end of the support part is connected to the sealing part, the lower end is installed with a fixing buckle, and the upper end opening of the sleeve part is formed by extending a certain distance toward the interior of the hollow slideway. The limit step, the pressure spring is sleeved on the support part, the upper end stops against the limit step, and the lower end stops against the fixed buckle. 6. The washing machine drainage device according to any one of claims 1-5, characterized in that: the sealing part has a sealing cover structure, at least a sealing ring is provided on the bottom surface of the sealing cover to match the drain port, and the drain port It has a trumpet-shaped structure with a large upper opening and a small lower opening. The sealing ring has a tapered sealing end surface that matches the drain port; the support part is a support rod arranged at the center of the sealing cover, and the sleeve part is The inner hollow sleeve, the support rod is inserted into the sleeve and relatively slides. 7. The washing machine drainage device according to claim 1, characterized in that: the upper surface of the smooth structure is a downwardly curved arc surface. 8. The washing machine drainage device according to claim 1, characterized in that: the valve opening unit comprises a push rod, and the push rod is configured to be controllable to move upward to open the valve sealing unit; The locking unit includes a locking rod, and the bottom of the washing tub is provided with a locking recess that matches the upper end of the locking rod; When the upper end of the locking rod is away from the locking recess of the washing tub, the minimum distance between the upper end of the push rod and the valve sealing unit is greater than the minimum distance between the upper end of the locking rod and the locking recess for effective locking. 9. The washing machine drainage device according to claim 8, characterized in that: the upper end of the locking rod is higher than the upper end of the ejector rod; Alternatively, the locking recess effectively restricts the position of the locking rod to be lower than the level where the valve sealing unit is interfered by the push rod. 10. The washing machine drainage device according to claim 1, characterized in that: the valve opening unit and the locking unit are movably arranged on the same fixed seat, and are integrated into an integral module structure. 11. The washing machine drainage device according to claim 10, characterized in that the driving unit is fixedly installed on the fixing seat, and is integrated with the valve opening unit, the locking unit, and the fixing seat in a modular structure. 12. The washing machine drainage device according to claim 1, characterized in that: the driving unit is a driving motor, and the transmission member is configured to convert the rotation output by the driving motor into the transmission of the reciprocating linear motion of the valve opening unit/locking unit structure. 13. The washing machine drainage device according to claim 12, characterized in that: the transmission part includes a transmission wheel and a transmission rod, the transmission wheel is installed on the drive motor shaft, one end of the transmission rod is eccentrically connected to the transmission wheel, and the other end is connected to the valve to open Unit/locking unit active connection; Alternatively, the transmission member is a screw transmission component. 14. A washing machine, comprising a shell, a washing bucket rotatably arranged in the shell, a water receiving tank supporting the washing bucket, and the drain of the washing bucket is located in the water receiving tank, characterized in that it also includes any one of claims 1-13 In the washing machine drainage device, the valve opening unit, locking unit and driving unit are integrally installed at the bottom of the sink.

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