JP2022525171A - Drainage sealing device, drum type washing machine and control method - Google Patents

Abstract

The present application provides a sealed drainage device, a drum-type washing machine and a control method, and includes an inner tank configured such that the drum-type washing machine independently receives washing water when washing clothes. A drainage port is opened above, and the sealed drainage device is configured to close the drainage port with a centrifugal component configured to move the inner tank under the action of a rolling centrifugal force. The centrifugal component is connected to the closed component, and the centrifugal component is centrifugally moved so that the closed component is taken to open the drain port. [Selection diagram] FIG. 13

Description

This disclosure claims the priority of a Chinese patent application with a filing date of March 13, 2019 and an application number of 201910190613.9, and all content of the above application is incorporated herein by reference. Will be done.

The present application relates to the technical field of washing equipment, for example, a drainage sealing device for a drum type washing machine, a drum type washing machine and a control method.

The washing machine, as one of the most widely used household appliances in people's daily lives, has helped people from the troubles of washing and brought great convenience to them. However, washing machines also have certain drawbacks such as long time and large water consumption, and with the development of society, water resources are becoming more and more important as one important natural resource, and people are conscious of saving water. Is also getting higher. How to realize the water-saving function of the washing machine is especially important.

In order to solve the water saving problem of the washing machine, several patents have been proposed in the related technique, for example, the application number is 2014102153436.3 and the name is the Chinese invention patent of the drum type washing machine. The present invention includes a housing, an inner tank and an outer tank are provided in the housing, a door seal is provided between the outer tank and the housing, the inner tank is in contact with a drive device, and the inner tank is The inner tank is a non-perforated inner tank, and the inner tank is a tapered tank having a small bottom diameter and a large tank mouth diameter. A water supply conduit is provided, one end of the water supply conduit is in contact with the washing water rapid heating device, the other end of the water supply conduit passes through the door seal and is inserted into the inner tank, and the outer tank is provided with a drain port and a water pressure detection device. Regarding the drum type washing machine. As can be seen from the above technical plan, the inner tank of the present invention is a non-perforated inner tank, and the water supply of the inner tank is realized by the water supply conduit provided in the door seal, and the drainage is realized in the dehydration process by the shape of the inner tank itself. As a result, it is possible to prevent water from being stored between the inner and outer tubs, and the amount of washing water is greatly saved.

The above invention has provided a drum-type washing machine having a non-perforated inner tub, but the above-mentioned invention merely designs the inner tub of the drum-type washing machine in a related technique to have a non-perforated structure, and has practical significance. small. Since it is necessary to soak a certain amount of washing water in washing clothes, it is necessary to store a certain amount of water in a non-perforated inner tank in order to realize the soaking effect. This causes problems such as increasing the load on the motor and consuming electric power. Further, the water supply method of the drum type washing machine disclosed in the patent is based on a door seal. Since the main function of the door seal is to seal the opening of the outer tub of the washing machine, the provision of a water supply conduit in the door seal tends to affect the sealing effect of the door seal and is difficult to realize. Moreover, the patent cannot realize the detection of the water level supplied to the inner tank.

Also, for a drum-type washing machine with a non-perforated inner tub, maintaining the sealing of the drainage port in the inner tub is a key point for realizing that there is no water between the inner tub and the outer tub. In the related technology, there is a method in which a sealing material is provided at the drainage port and the activity material seals and contacts the sealing material to close the drainage port, but in general, many inner tanks are used. Since the tank wall is arcuate, it is complicated to attach the sealing material to the arcuate inner tank wall, it is difficult to stabilize, and it is easy to fall off, so the active material cannot block the drainage port and water. Dripping and water leakage occur.

The first aspect of the present application provides a sealed drainage device and adopts the following technical plan.
A sealed drainage device applicable to drum-type washing machines.
The drum-type washing machine includes an inner tub configured to receive washing water independently when washing clothes, a drainage port is opened in the inner tub, and the sealed drainage device is provided.
Centrifugal parts configured to move the inner tank under the action of rolling centrifugal force,
Including a blockage component configured to block the drain.
A sealed drainage device in which the centrifugal component is connected to the closed component, and the closed component is driven to open the drain port by centrifugal movement of the centrifugal component.

The second aspect of the present application provides a drum type washing machine and adopts the following technical plan.
An inner tub that is configured to receive washing water independently when washing clothes,
A drainage port opened in the inner tank for draining washing water,
Including sealed drainage device
The sealed drainage device is the sealed drainage device according to the first aspect of the present application, the sealed drainage device is attached to the inner wall of the inner tank, and the centrifugal component acts on the centrifugal force that the inner tank rolls. A drum-type washing machine that centrifuges underneath to drive the obstructed component to open the drain.

A third aspect of the present application provides a control method for a drum-type washing machine and adopts the following technical plan.
The drum-type washing machine controls the rotation speed V of the inner tub to satisfy V ≧ V0 in at least one process of drainage and dehydration, and the centrifugal component acts on the centrifugal force that causes the inner tub to roll. Including moving underneath to drive the blockage component to open the drain.
Here, the control method of the drum type washing machine, wherein V0 is a set value.

It is a principle schematic diagram of the drum type washing machine which concerns on Example 1 of this application. It is a principle schematic diagram (Embodiment 1) of the drum type washing machine which concerns on Example 2 of this application. It is a principle schematic diagram (Embodiment 2) of the drum type washing machine which concerns on Example 2 of this application. It is a principle schematic diagram (Embodiment 3) of the drum type washing machine which concerns on Example 2 of this application. It is a principle schematic diagram of the drum type washing machine which concerns on Example 3 of this application. It is a partially enlarged view (pressure release state) in FIG. 5 of the drum type washing machine according to the third embodiment of the present application. It is a partially enlarged view (pressurized state) in FIG. 5 of the drum type washing machine according to the third embodiment of this application. It is a principle schematic diagram of the drum type washing machine which concerns on Example 4 of this application. It is a partially enlarged view (pressure release state of Embodiment 1) in FIG. 8 of the drum type washing machine which concerns on Example 4 of this application. It is a partially enlarged view (pressurized state of Embodiment 1) in FIG. 8 of the drum type washing machine which concerns on Example 4 of this application. It is a partially enlarged view (pressure release state of Embodiment 2) in FIG. 8 of the drum type washing machine which concerns on Example 4 of this application. It is a partially enlarged view (pressurized state of Embodiment 2) in FIG. 8 of the drum type washing machine which concerns on Example 4 of this application. It is a principle schematic diagram of the drum type washing machine which concerns on Examples 5-9 of this application. It is a schematic work principle diagram which attaches the sealing drainage device which concerns on Examples 5 and 6 of this application to a drum type washing machine. FIG. 6 is a partially enlarged view of FIG. 14 of the sealed drainage device according to Examples 5 and 6 of the present application. FIG. 6 is a partially enlarged view of another embodiment of FIG. 14 of the sealed drainage device according to Examples 5 and 6 of the present application. It is an exploded view of the sealed drainage device which concerns on Examples 5 and 6 of this application. It is a schematic work principle diagram which attaches the sealing drainage device which concerns on Example 7 of this application to a drum type washing machine. FIG. 8 is a partially enlarged view of FIG. 18 of the sealed drainage device according to the seventh embodiment of the present application. FIG. 8 is a partially enlarged view of another embodiment of FIG. 18 of the sealed drainage device according to the seventh embodiment of the present application. It is a mounting figure of the sealing drainage device which concerns on Example 7 of this application, and the lifter of a drum type washing machine. It is a schematic diagram of the inner tank structure to which the drum type washing machine which concerns on Example 7 of this application, a sealing drainage device, and a lifter of a washing machine are attached. It is a schematic work principle diagram which attaches the sealing drainage device which concerns on Example 8 of this application to a drum type washing machine. FIG. 5 is a schematic working principle diagram of another embodiment in which the sealed drainage device according to the eighth embodiment of the present application is attached to a drum type washing machine. FIG. 3 is a partially enlarged view of FIGS. 23 and 24 of the sealed drainage device according to the eighth embodiment of the present application. It is a schematic work principle diagram which attaches the sealing drainage device which concerns on Example 9 of this application to a drum type washing machine. FIG. 6 is a partially enlarged view of FIG. 26 of the sealed drainage device according to the ninth embodiment of the present application.

Hereinafter, the drainage sealing device, the drum type washing machine, and the control method of the drum type washing machine of the present application will be described with reference to the drawings.

As shown in FIGS. 1 to 27, this embodiment has a simple structure, does not require filling of washing / rinsing water between the inner tub and the outer tub, and greatly reduces the amount of washing water in the washing machine. Provided is a drum type washing machine having a non-perforated inner tub front opening type structure. Avoid the possibility of dirt adhering between the inner and outer tanks. Greatly improve user health and user experience and save water resources significantly.

The drum-type washing machine of this embodiment has a housing 19 including an upset panel 2, a front panel, a rear back panel, and a bottom plate to which a foot 9 for supporting the entire washing machine is mounted and fixed. The inside of the housing 19 has an outer tank 18, and the inner tank 17 is coaxially provided in the outer tank 18. The outer tank 18 can collect the drainage of the inner tank 17 and the drainage that the inner tank 17 centrifuges at high speed to dehydrate. The inner tank 17 is rotated, preferably provided with a lifter 43, and the clothes are washed by continuously lifting, dropping, and knocking off the clothes. The inner tank 17 has a non-perforated structure. The outer tank 18 has a central mounting hole to which the bearing 12 is mounted and fixed. The inner tank shaft 13 fastened to the inner tank 17 passes through the indicated bearing 12 and is connected to the drive motor 16. By attaching an openable and closable inner tank door 6 to the front tank opening of the inner tank 17, the sealing chamber structure of the inner tank 17 is realized.

A door 5 that can be opened and closed is attached to the housing 19 of this embodiment.

Example 1,
This embodiment can solve the problem of how the non-perforated inner tank drum type washing machine accurately determines the water supply amount, and the plan is as follows.

The drum-type washing machine includes an inner tub 17 and a water supply pipeline communicating with the inner tub 17, and is a non-perforated inner tub in which the inner tub 17 receives washing water when washing clothes, and water is supplied to the water supply pipeline. A flow sensor 1 for detecting the flow rate is provided.

In this embodiment, the flow rate sensor 1 is provided in the water supply pipeline to monitor the flow rate at the time of water supply, and when the set water supply amount is reached, the water supply valve 20 is closed to complete the water supply. In this embodiment, by adopting a flow rate sensor, the water supply problem based on the set water level of the non-perforated inner tank drum type washing machine is solved, the washing effect is ensured, the structure is simple, and the maneuvering is convenient.

The drum-type washing machine of the present embodiment includes a water supply valve 20, a detergent box 3, the water supply pipe line includes a first water supply pipe and a second water supply pipe, and the outlet end of the water supply valve 20 is cleaned by a first water supply pipe. It is communicated with the box 3, the outlet end of the detergent box 3 is communicated with the inner tank 17 by the second water supply pipe, and the flow sensor 1 is provided in the first water supply pipe or the second water supply pipe.

Preferably, the flow rate sensor 1 is provided in the first water supply pipe, whereby the detergent in the detergent box can be prevented from entering the flow rate sensor 1.

The drum-type washing machine of this embodiment includes a main controller 4, and the flow rate sensor 1 and the main controller 4 are electrically connected via a line. The main controller 4 can collect the water supply amount of the inner tank 17 in real time, and closes the water supply valve 20 when the set water supply amount is reached.

As one embodiment of the present embodiment, the flow rate sensor 1 is a rotor flow rate sensor, a turbine flow rate sensor, an ultrasonic flow rate sensor, an electromagnetic flow rate sensor, or an orifice flow rate sensor.

A flow rate sensor 1 may be provided at an arbitrary position on the water supply pipeline of the present embodiment, but is preferably provided at the rear of the water supply valve 20 to accurately measure the flow rate of water entering the sealing inner tank 17. The flow rate sensor 1 is weighed and connected to the main controller 4 via a line, and the main controller 4 can collect the water supply amount of the inner tank 17 in real time, and closes the water supply valve 20 when the set water supply amount is reached.

In order to realize water supply into the non-perforated inner tank of the present embodiment, the drum type washing machine of the present embodiment includes a drive motor 16 and an inner tank shaft 13, and the drive motor 16 is inside the inner tank shaft 13. The inner tank 17 is driven so as to roll by being transmitted and connected to the tank 17, and the inner tank shaft 13 has a hollow passage 14 communicated with the inside of the inner tank 17, and the water supply pipeline is provided. It is communicated with the hollow passage of the inner tank shaft 13.

In some embodiments, the inner tank shaft 13 is connected to a drive motor 16, the drive motor 16 includes a stator and a rotor, the rotor is fixed to the inner tank shaft 13, and a pass hole is provided in the center of the rotor. The water supply pipeline passes through the pass hole of the rotor and communicates with the hollow passage 14 of the inner tank shaft 13.

In some embodiments, a first dynamic sealing structure 15 is provided between the water supply line and the rotor pass hole, and the first dynamic sealing structure 15 is provided between the rotor pass hole and the hollow passage 14 of the inner tank shaft 13. 2 A sealing structure is provided.

In order to realize drainage of the non-perforated inner tub, the drum type washing machine of this embodiment includes an outer tub 18, an inner tub drainage hole is opened on the side wall of the inner tub 17, and the inner tub drainage hole is always closed. A check valve plug 11 is attached, and a push rod mechanism 10 for pushing open the check valve plug 11 and draining water is attached to the outer tank 18.

Preferably, the outer tank 18 is further provided with a lock mechanism for locking the rolling of the inner tank 17, and after the lock mechanism locks the inner tank, the push rod mechanism 10 pushes open the check valve plug 11 to drain water. ..

In order to realize dehydration of the non-perforated inner tank, a plurality of dehydration holes are opened on the side wall of the inner tank 17 of this embodiment, and a centrifugal valve is attached to each of the dehydration holes. It is opened under the action of and dehydrates and drains.

In this embodiment, the washing machine executes the washing / rinsing program, the flow sensor detects the water supply flow value in real time in the water supply process, the washing machine calculates the water supply amount from the water supply flow value and the water supply time, and the water supply amount. Simultaneously provides a control method for the drum-type washing machine, which stops the water supply when the water supply reaches the set water supply amount of the washing machine.

The drum type washing machine is provided with a plurality of water supply flow rate values that can be selected by the user, and the washing machine supplies water based on the water supply flow rate value selected by the user.

The drum-type washing machine has a clothes weighing function, and can determine the flow rate value of water supply based on the weight of clothes and supply water.

Example 2,
As shown in FIGS. 2 to 4, the drum-type washing machine of the present embodiment includes an inner tank 17 which is a non-perforated inner tank that receives washing water when washing clothes, and a water supply pipeline, and is used to measure the amount of water supplied. The water measuring device is further included, the water supply pipeline is communicated with the water measuring device, and the water measuring device is communicated with the inner tank.

In the drum type washing machine of this embodiment, by providing a water measuring device, water is first placed in the water measuring device and quantitatively weighed before water is supplied to the inner tank 1, and water is measured based on the set water level. The weighing device determines the number of times the water is weighed, thereby solving the water supply problem based on the set water level of the non-perforated inner tank drum type washing machine, ensuring the washing effect, simple structure and convenient maneuvering. ..

The water measuring device of the present embodiment includes a water measuring tank 21, the water measuring tank 21 has a water supply port and a water discharge port, the water supply port is communicated with a water supply pipeline, and the water discharge port is communicated with an inner tank 17. The water discharge port is provided with a water discharge control device for controlling the water discharge port to be opened when the amount of water in the water measuring tank 21 reaches a set value.

As one embodiment of the present embodiment, as shown in FIG. 2, the water measuring tank 21 is provided at the bottom of the inner tank 17, and the water measuring device detects the water level of the water measuring tank 21. When the water discharge control device is the tank drainage pump 23, and the tank drainage pump 23 detects that the water level in the water level detecting device 22 reaches a set value, the tank drainage pump 23 includes the device 22. 23 is activated to pump the water in the water measuring tank 21 into the inner tank 17.

As one embodiment of the present embodiment, as shown in FIG. 3, the water measuring tank 21 is provided on the upper part of the inner tank 17, and the water measuring device detects the water level of the water measuring tank. 22 is included, the water discharge control device is a tank drain valve 25, and the tank drain valve 25 is opened when the water level detecting device 22 detects that the water level in the water measuring tank 21 reaches a set value, and the water measuring tank is opened. The water in 21 is discharged to the inner tank.

The water level detection device 22 of this embodiment is a liquid level sensor, the liquid level sensor includes an air chamber and a sensor unit, and the air chamber is communicated with a water measuring tank. Alternatively, the water level detecting device 22 is provided in the water measuring tank and includes a plurality of water level detecting probes arranged along the depth direction thereof.

As one embodiment of the present embodiment, the water measuring tank 21 is provided on the upper part of the inner tank 17, the water discharge port is provided on the bottom wall of the water measuring tank 21, and the water discharge control device always closes the water discharge port. It is a tank check valve to hold, and when the amount of water in the water measuring tank reaches a certain value, the tank check valve is opened under hydraulic gravity, and after the water in the water measuring tank 21 is discharged to the inner tank 17. , The tank check valve is reset to keep the outlet sealed.

The water measuring tank 21 of this embodiment is provided with a relief hole 24, and the relief hole 24 is connected to a relief pipeline for drawing out overflowing water from the water measuring tank.

Preferably, the drum-type washing machine includes a drainage pipe 8, and the relief pipe is communicated with the drainage pipe 8.

As one embodiment of the present embodiment, as shown in FIG. 4, the water measuring device includes a heating device 26 provided in the water measuring tank 21 and a water temperature detecting device for detecting the water temperature in the water measuring tank. include.

In this embodiment, the washing machine executes a washing / rinsing program, the washing machine controls the washing water to enter the water measuring tank, and stops the water supply when the amount of water in the water measuring tank reaches a set value. Then, all the water in the water measuring tank is discharged into the inner tank, the water supply is started again, the water is put into the water measuring tank, and it circulates in this way, and when the water level in the inner tank reaches the set value, The control method of the drum type washing machine for terminating the water supply is provided at the same time.

In some embodiments, the washing machine controls the washing water to enter the water measuring tank, and when the amount of water in the water measuring tank reaches a set value, the water supply is stopped and the heating device is operated to wash the washing water. When the water temperature detector detects that the water temperature in the water measuring tank reaches the set value, all the water in the water measuring tank is discharged into the inner tank.

Example 3,
This embodiment can solve the problem of how a non-perforated inner tank drum type washing machine guarantees that the pressure in the sealing chamber is not balanced, for example, suddenly the solenoid valve is cut off, especially the water pipe. It is possible to solve the problem that the net is cut off, a negative pressure is formed, the washing water in the sealing chamber is backwashed by the pipe net, or there is gas inside, which makes water supply difficult.

As shown in FIGS. 5 to 7, the drum-type washing machine of the present embodiment includes an inner tank 17 which is a non-perforated inner tank that receives washing water when washing clothes, and communicates the inner tank 17 with the external environment. It further includes a barometric pressure equilibrium mechanism for balancing the internal barometric pressure of the inner tank.

When water is supplied, the pressure received by the gas in the sealing chamber of the inner tank can overflow due to the equilibrium mechanism, ensuring pressure equilibrium.

In the event of sudden water outage, the outside air can quickly enter the sealing chamber of the inner tank, destroying the sackback, ensuring pressure equilibrium, and avoiding washing water being sucked into the water network.

In addition, for example, at the time of dehydration, the barometric pressure equilibrium mechanism can also guarantee the barometric pressure equilibrium of the inner tank.

As one embodiment of the present embodiment, the barometric pressure equilibrium mechanism includes a pressure equalizing port 27 provided in the inner tank 17, and one end communicating with the inside of the inner tank 17 of the pressure equalizing port 27 is an inner tank 17. It is provided at a position close to the rotation center axis of the above, and is always higher than the highest water level position in the inner tank 17.

The drum-type washing machine of the present embodiment includes a drive motor 16 and an inner tank shaft 13, and the drive motor 16 is driven so that the inner tank 17 rolls by being transmitted and connected to the inner tank 17 by the inner tank shaft 13. The pressure equalizing port 27 is opened on the inner tank shaft 13 to communicate the inside of the inner tank 17 with the external environment, and the maximum water level in the inner tank 17 is lower than that of the inner tank shaft 13. This makes it possible to prevent the water in the inner tank from flowing out through the pressure equalizing port.

The drum-type washing machine of the present embodiment includes an outer tub 18, the inner tub 17 is provided inside the outer tub 18, and water discharged from the inner tub 17 is discharged via the outer tub 18, as described above. An inner tank door 6 for sealing the inner tank is attached to the tank mouth of the inner tank 17, the tank mouth of the outer tank 18 is opened, one end of the pressure equalizing port 27 is communicated with the inside of the inner tank 17, and the like. An end is provided inside the outer tub 18 and communicates with it. As a result, an extreme situation can be prevented, and even if water is discharged from the hole, it can be collected in the outer tank 18.

An inner tank drain hole is opened on the side wall of the inner tank 17 of the present embodiment, a normally closed check valve plug 11 is attached to the inner tank drain hole, and the check valve plug 11 is pushed open to the outer tank 18 to drain water. A push rod mechanism 10 for this is attached.

Preferably, the outer tank 18 is further provided with a lock mechanism for locking the rolling of the inner tank, and after the lock mechanism locks the inner tank, the push rod mechanism pushes open the check valve plug to drain water.

The drum-type washing machine of the present embodiment includes a water supply pipeline, the inner tank shaft 13 has a hollow passage 14 communicating with the inside of the inner tank 17, and the water supply pipeline is a hollow of the inner tank shaft 13. It communicates with the passage 14, and the pressure equalizing port 27 and the hollow passage 14 communicate with each other inside the inner tank 17, and are provided apart from each other. As a result, it is possible to maintain the pressure equilibrium inside the inner tank by guaranteeing that the gas in the sealing chamber of the inner tank is smoothly discharged, and the water supply is directly discharged from the pressure equalizing port 27 and leaks. To prevent.

In some embodiments, the hollow passage 27 extends from one end to the other end along the central axis direction of the inner tank shaft, the pressure equalizing port includes a first port segment and a second port segment, and the first. A port segment is provided parallel to the hollow passage, one end of which is communicated with the inside of the inner tank, one end of the second port segment is communicated with the first port segment, and the other end is the inner tank wall on the outer periphery of the inner tank shaft. It extends to and communicates with the inside of the outer tank.

Preferably, the second port segment and the first port segment are provided so as to be perpendicular to each other to form an L-shaped pressure equalizing port.

In some embodiments, the inner tank shaft 13 is connected to the drive motor 16, the drive motor 16 includes a stator and a rotor, the rotor is fixed to the inner tank shaft, and a pass hole is provided in the center of the rotor. The water supply pipeline passes through the pass hole of the rotor and communicates with the hollow passage of the inner tank shaft.

Preferably, a first dynamic sealing structure is provided between the water supply pipeline and the pass hole of the rotor, and a second sealing structure is provided between the pass hole of the rotor and the hollow passage of the inner tank shaft. ..

In the drum-type washing machine of the present embodiment, a plurality of dehydration holes are opened on the side wall of the inner tub 17, and a centrifugal valve is attached to each of the dehydration holes, and the centrifugal valve is opened under the action of the centrifugal force of dehydration. Then, dehydrate and drain.

Example 4,
This embodiment solves the problem of how a non-perforated inner tank drum type washing machine guarantees that the pressure in the sealing chamber is not balanced, for example, suddenly the solenoid valve is cut off, and especially the water pipe network is cut off. However, it is possible to solve the problem that negative pressure is formed, the washing water in the sealing chamber is backwashed by the pipe network, or there is gas inside, which makes it difficult to supply water.

As shown in FIGS. 8 to 12, the drum-type washing machine of the present embodiment includes an inner tank 17 which is a non-perforated inner tank that receives washing water when washing clothes, and communicates the inner tank with the external environment. It further includes a pressurizing mechanism and / or a depressurizing mechanism for balancing the internal air pressure of the tank 17.

The pressurizing mechanism of the present embodiment includes a pressurizing port 28 and a negative pressure safety valve 29, the negative pressure safety valve 29 is provided on the pressurizing port 28, and the internal pressure of the inner tank 17 is higher than the atmospheric pressure of the external environment. It is used to conduct the pressurizing port 28 in one direction when it is small, and the gas in the external environment enters the inside of the inner tank 17 by the pressurizing port 28 and pressurizes it, and the internal pressure of the inner tank 17 and the pressure of the external environment When the pressure is balanced, the negative pressure safety valve 29 is closed.

The pressure release mechanism of this embodiment includes a pressure release port 30 and a positive pressure safety valve 31, the pressure release port 30 is provided at a position close to the rotation center axis of the inner tank 17, and the maximum water level in the inner tank 17 is always reached. Higher than the position, the positive pressure safety valve 31 is provided on the pressure release port 30, and when the internal pressure of the inner tank 17 is larger than the atmospheric pressure of the external environment, the pressure discharge port 30 is continuously conducted in one direction to discharge the pressure. When the internal pressure of the inner tank 17 and the pressure of the external environment are balanced, the positive pressure safety valve 31 is closed.

As shown in FIG. 9, when the gas in the sealing chamber of the inner tank 17 receives pressure and becomes larger than the set value of the positive pressure safety valve during water supply, the positive pressure safety valve is opened and overflows through the pressure release port. And guarantees pressure equilibrium.

As shown in FIG. 10, when the gas in the sealing chamber of the inner tank 17 receives pressure and becomes smaller than the set value of the positive pressure safety valve during sudden water outage, the outside air quickly enters the sealing chamber and sucks back. It can be destroyed, ensure pressure equilibrium, and prevent wash water from being sucked into the water network.

In addition, for example, at the time of dehydration, the barometric pressure equilibrium mechanism can also guarantee the barometric pressure equilibrium of the inner tank.

The drum-type washing machine of the present embodiment includes a drive motor 16 and an inner tank shaft 13, and the drive motor 16 is transmitted and connected to the inner tank 17 by the inner tank shaft 13 so that the inner tank 17 rolls. Driven, the pressure port 28 and / or the pressure release port 30 is opened on the inner tank shaft 13 to communicate the inside of the inner tank 17 with the external environment, and the maximum water level in the inner tank 17 is from the inner tank shaft 13. Is also low.

The drum-type washing machine of the present embodiment includes an outer tub 18, the inner tub 17 is provided inside the outer tub 18, and water discharged from the inner tub 17 is discharged via the outer tub 18, as described above. An inner tank door 6 for sealing the inner tank is attached to the tank mouth of the inner tank 17, the tank mouth of the outer tank 18 is opened, and one end of the pressure port 28 and / or the pressure release port 30 is the inner tank 17. The other end is provided inside the outer tank 18 and communicates with the inside of the outer tank 18.

The drum-type washing machine of the present embodiment includes a water supply pipeline, has a hollow passage 14 communicating with the inside of the inner tank 17 in the inner tank shaft 13, and the water supply pipeline is the inner tank shaft 13. The pressure release port 30 and the hollow passage 14 are communicated with each other inside the inner tank 17, and are provided apart from each other.

As shown in FIGS. 9 and 10, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner tank shaft 13, and the pressure release port 30 is a first port segment and a second port. Including the segment, the first port segment is provided parallel to the hollow passage, one end of which is communicated inside the inner tank, one end of the second port segment is communicated with the first port segment, and the other end is the inner tank shaft. It extends to the inner tank wall on the outer circumference of the tank and communicates with the inside of the outer tank.

Preferably, the second port segment and the first port segment are provided so as to be perpendicular to each other to form an L-shaped discharge port.

The drum-type washing machine of the present embodiment includes a water supply pipeline, has a hollow passage 14 communicating with the inside of the inner tank 17 in the inner tank shaft 13, and the water supply pipeline is the inner tank shaft 13. It communicates with the hollow passage 14, and the pressurizing port 28 communicates with the hollow passage 14.

In some embodiments, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner tank shaft 13, one end of the pressurizing port 28 communicates with the hollow passage 14, and the other end. Extends to the inner tank wall on the outer periphery of the inner tank shaft 13 and communicates with the inside of the outer tank 18.

Preferably, the pressure port 28 and the hollow passage 14 are provided so as to be perpendicular to each other.

The inner tank shaft according to the present embodiment is connected to the drive motor, the drive motor includes a stator and a rotor, the rotor is fixed to the inner tank shaft, a pass hole is provided in the center of the rotor, and the water supply pipeline is a rotor. It passes through the pass hole of and communicates with the hollow passage of the inner tank shaft.

Preferably, a first dynamic sealing structure is provided between the water supply pipeline and the pass hole of the rotor, and a second sealing structure is provided between the pass hole of the rotor and the hollow passage of the inner tank shaft. ..

As shown in FIGS. 11 and 12, both the pressurizing port 28 and the releasing pressure port 30 are provided on the inner tank shaft 13, and the openings for communicating the atmosphere are both inside the outer tank 18, and the inner tank 17 is provided. Each of the openings communicating with the sealing chamber is inside the water supply passage 14 of the inner tank shaft 13.

Preferably, both the pressurizing port 28 and the releasing pressure port 30 are provided on the inner tank shaft 13, and the openings for communicating the atmosphere are both inside the outer tank 18 and communicate with the sealing chamber of the inner tank 17. It can be associated that all the openings are inside the sealing chamber.

Example 5,
As shown in FIGS. 13 to 27, the drum type washing machine of this embodiment includes an inner tub 17 that receives washing water independently when washing clothes, and the inner tub 17 adopts the design of a non-perforated inner tub. It is a closed chamber with ventilation holes inside during washing, and it can receive washing water independently when washing and rinsing the washing machine, and there is no water between the inner tub and the outer tub, realizing the purpose of saving water. At the same time, it avoids forming dirt between the inner tank and the outer tank, keeps the tank wall clean, and improves the user experience. A drainage port 39 is opened in the inner tub 17 of the washing machine to drain water in the drainage and / or dehydration process. This embodiment is
Centrifugal parts that move under the action of the centrifugal force that the inner tank 17 rolls,
Including a closing component for closing the drainage port.
Disclosed is a sealed drainage device applied to the drum type washing machine, in which the centrifugal part is connected to the closed part and the closed part is taken so as to open the drain port by the centrifugal movement of the centrifugal part.

In the sealed drainage device according to the present embodiment, the centrifugal force of the inner tank 17 is used to drive the centrifugal part so that the centrifugal part moves centrifugally, and the centrifugal part moves the closed part to open the drainage port. To realize drainage. In principle, drainage can be realized by setting the rotation speed of the inner tub using the work characteristics of the drum type washing machine, and it is easy to realize. , Achieves drainage and has a simple structure. Therefore, the sealed drainage device of the present application realizes that a drum-type washing machine having a non-perforated inner tank holds the seal of the drain port during washing and rinsing, and the non-perforated inner tank receives water independently. On the other hand, centrifugal drainage was realized by controlling the rotation speed of the inner tub during drainage and / or dehydration, and the problem of sealing and drainage of a drum-type washing machine having a non-perforated inner tub was realized.

As one embodiment of the present embodiment, both the centrifugal component and the closed component of the present embodiment can reciprocate along the radial direction of the inner tank 17, and the closed component is driven by the centrifugal component. The direction in which the centrifugal component reciprocates is the same as or opposite.

Considering that more controls need to be installed in order for the blockage component to move in the same direction as the centrifugal component, the centrifugal component is preferably the inner tank under the action of centrifugal force that causes the inner tank to roll. The obstructed component moves along the radial direction of the inner tank and away from the central axis of the inner tank, and the obstructed component moves along the radial direction of the inner tank and closer to the central axis of the inner tank under the drive of the centrifugal component. , The radial movements of the inner tanks of the closed parts and the centrifugal parts are superimposed on each other, the total movement stroke of both inner tanks along the radial direction is reduced, and the mounting space is reduced.

The closing part of the present embodiment includes a closing material and an elastic material 43, the elastic material 43 acts on the closing material, the closing material holds the drain port 39 to be sealed and closed, and the centrifugal part is closed. It is connected to the material, and when the centrifugal part moves centrifugally, the closing material moves and is taken to open the drainage port.

The elastic material 43 of the present embodiment keeps the closing material from closing the drain port by generating an elastic urging force against the closing material, and keeps the inner tub sealed and receives washing water. ..

In order to realize the sealing between the closed part and the drain port, this embodiment can be realized by adopting the following aspects.
Aspect 1, the closed part and the drainage port 39 are directly sealed and contacted to close the drainage port 39, and for example, the closed part and the drainage port 39 are directly electromagnetically sealed and rigidly sealed. And so on.
Aspect 2, the closed part and the drain port 39 are sealed and contacted by the sealing material 40, and the drain port 39 is closed and sealed by the sealing material 40, so that the cost is low, simple and effective. It is a target.

In some embodiments, the closure component has a sealing protrusion for contact sealing in the circumferential direction so that the sealing protrusion is in sealing contact with the inner tank wall or inner wall on the outer periphery of the drainage port. Hold and close the drain. The sealing protrusion of the present embodiment can be provided directly on the closing component, and the closing component can directly seal the drain port 39.
And / or, the inner wall of the drainage port 39 and / or the inner tank wall on the outer periphery has a sealing convex portion for contact-sealing in the circumferential direction, so that the sealing muscle makes sealing contact with the closed part. Hold and close the drain.
And / or, the sealing material 40 has a sealing convex portion 41 for contact-sealing in the circumferential direction, and the sealing convex portion 41 and the closing component and / or the drain port 39 are sealed and contacted. And block the drain.

The sealing convex portion of the present embodiment is a sealing convex portion formed by partially projecting the closing component and / or the inner wall of the drainage port 39 and / or the inner tank wall and / or the sealing material 40 on the outer periphery of the drainage port 39. The sealing protrusions of the present embodiment, which are streaks, are partially recessed by the closing component and / or the inner wall of the drainage port 39 and / or the inner tank wall and / or the sealing material 40 on the outer periphery of the drainage port 39. It is a formed protrusion.

The sealed drainage device of this embodiment includes a case 44 having a guide passage inside, and the closing material is provided at one end of a guide portion 35 and a guide portion 35 provided so as to be reciprocating in the guide passage, and drainage is performed. The elastic material 43 is mounted inside the case 44, including a closing portion 36 for closing the mouth and a connecting portion 34 provided at the other end of the guide portion for connecting to a centrifugal component, and one end thereof is the case 44. And the other end is in contact with the closing material.

The elastic material compression spring of the present embodiment, wherein the compression spring is fitted in the guide portion 35, preferably, a storage groove for accommodating the compression spring is further provided in the case 44, and the accommodating groove surrounds the guide passage. One end of the compression spring is abutted in the accommodating groove, and the other end is abutted on the closed portion.

The guide portion 35 of this embodiment is a guide pillar body, the closing portion 36 is a closing plug formed by extending one end of the guide pillar body in the circumferential direction, and the connecting portion 34 is at the other end of the guide pillar body. It is a connection rotation shaft provided.

The centrifugal component of the present embodiment includes a counterweight 38 and a connecting material 37, one end of the connecting material 37 is connected to the counterweight 38, the other end is connected to the closing component, and the central part of the connecting material 37 is a rotating shaft. It has a rotating shaft hole 42 that is rotatably attached.

Preferably, the counterweight 36 and the connecting material 37 are integrally molded.

The other end of the connecting member 37 of the present embodiment is provided with a connecting rotating shaft hole 46 for attaching the connecting rotating shaft of the closing material, and the connecting rotating shaft is rotatably mounted in the connecting rotating shaft hole 46.

This embodiment is
The inner tub 17 that receives washing water independently when washing clothes,
A drainage port 39 for draining washing water, which is opened in the inner tank 17,
The seal, including a sealed drainage device attached to the inner wall of the inner tank, the centrifugal component centrifuging under the action of the centrifugal force that the inner tank rolls, and the obstructed component is taken to open the drain. A drum type washing machine having a drainage stop device is provided at the same time.

In the drum-type washing machine of the present embodiment, when the structural design is performed in order to satisfy the centrifugal drainage, the weight M of the entire centrifugal component, the rotation speed V of the inner tank, the elastic urging force F0 of the elastic material, and the entire closing material are used. Between the mass m of
When the rotation speed V of the inner tank reaches the set value V0, the centrifugal component starts centrifugal motion under the action of the centrifugal force of the inner tank, and the centrifugal force generated by the centrifugal component is the elastic urging force F0 and the centrifugal force of the closing material. It corresponds to driving the closing material to open the drain port by moving along the radial direction of the inner tank and approaching the central axis of the inner tank.

In some embodiments, a garment lifting device is attached to the inner wall of the inner tank, the garment lifting device has an internal chamber and a communication hole that communicates between the inner chamber and the inside of the inner tank, and the drainage port is inside. It is opened on the tank wall of the inner tank located in the chamber, and the sealing drainage device is provided in the inner chamber.

In this embodiment, by providing the sealed drainage device in the internal chamber, the sealed drainage device can be concealed and installed, and the sealed drainage device can be prevented from interfering with the clothes in the inner tank. It saves a single protective cover, reduces manufacturing costs and simplifies the mounting process.

The clothes lifting device of this embodiment is a lifter 32, and the lifter 32 is attached to the inner wall of the inner tank 17 by a fastening screw 45, and the lifter has a stay 55 for attaching the fastening screw 45. A pass hole 56 for passing the fastening screw 45 is provided in the tank wall of the tank.

This embodiment is
In the drainage and / or dehydration process of the washing machine, the rotation speed V of the inner tub is controlled to satisfy V ≧ V0, and the centrifugal part moves under the action of the centrifugal force that the inner tub rolls, and the blocked part is described above. Including driving to open the drain
Here, the V0 further provides a control method for the drum-type washing machine, which is a set value.

Therefore, the drum-type washing machine of the present embodiment can realize drainage and dehydration by controlling the rotation speed of the inner tub, and in the drainage stage, the inner tub rolls at at least the rotation speed of V0 to realize drainage. In the dehydration stage, the rotation speed of the inner tank is controlled to increase to V0 or higher, and dehydration drainage is performed.

Example 6,
As shown in FIGS. 13 to 17, regarding the sealing drainage device of the drum type washing machine of this embodiment, the drum type washing machine includes an inner tub 17 that independently receives washing water when washing clothes, and the inner tub 17 includes an inner tub 17. The drainage port 39 was opened, and the sealed drainage device was
It is sealed and contacted with the drain port 39, and includes a closing component for closing the drain port 39.

The sealed drainage device of the present application realizes that the closed part closes the drain port 39 to keep the drain port 39 sealed during washing and rinsing of a drum-type washing machine having a non-perforated inner tank. It realizes that the inner tank receives water independently.

In some embodiments, the closing part and the drainage port 39 are in direct sealing contact to close the drainage port 39.
Alternatively, the closing part includes the closing portion 36 and the sealing material 40 provided in the closing portion 36, and the sealing material 40 of the closing part and the drain port 39 are sealed and contacted to close the drain port 39. do.

In some embodiments, the closure component has a sealing convex portion 41 for contact sealing in the circumferential direction, and the sealing convex portion 41 has a sealing contact with the inner tank wall or the inner wall on the outer periphery of the drain port 39. Hold to close the drain.
And / or, the sealing material 40 has a sealing convex portion 41 for contact-sealing in the circumferential direction, and the space between the sealing convex portion 41 and the inner tank wall or the inner wall on the outer periphery of the drain port 39 is sealed. It is stopped and contacted to close the drain port 39.

In order to realize good sealing in the circumferential direction between the sealing convex portion 41 and the inner tank wall on the outer periphery of the drain port 39, the inner tank 17 according to the present embodiment is a flat portion having a flat inner wall surface. 57, the drainage port 39 is opened in the flat portion 57, and the sealing convex portion 41 is held in contact with the flat portion 57 on the outer periphery of the drainage port 39 in the circumferential direction to close the drainage port. do.

As another embodiment of the present embodiment, the drainage port 39 according to the present embodiment is provided on the arc-shaped wall of the inner tank, and the sealing convex portion 41 surrounds the inner surface of the arc-shaped wall on the outer periphery of the drainage port 39. The drainage port is closed by holding the sealing contact in the direction.

The sealing convex portion 41 according to the present embodiment includes at least one peripheral sealing bar provided on the closing component / sealing material, and each sealing bar makes a circumferential sealing contact with the inner surface of the arcuate wall. Hold on to do.

Preferably, the sealing protrusion comprises at least two rounds of sealing streaks provided on the closing component / sealing material.

The heights of the respective sealing bars are equal, and neither is smaller than the distance between the innermost sealing bar and the inner surface of the arcuate wall facing the innermost sealing bar.
Alternatively, the height of the sealing streaks on each circumference gradually increases in the arrangement direction from the outer circumference to the inner circumference, and the inner surface of the arcuate wall facing the sealing streaks on each circumference is kept in contact with the sealing in the circumferential direction. ..

As one embodiment of the present embodiment, the sealing bar headquarters, the sealing bar end portion for holding the sealing contact with the peripheral wall of the outer periphery of the drainage port, and the sealing bar headquarters and the sealing bar are sealed. It has a sealing bar transition section that transitions and connects the stop bar ends.

Preferably, the sealing bar transition portion is a fillet structure R between the sealing bar end portion and the sealing bar main body.

The sealing material 40 according to the present embodiment is a sealing plug body made of an elastic material, the sealing plug body has one open mounting chamber for mounting a closing component, and the sealing plug body drains water. It has one sealing end face that engages and seals with the flat portion of the inner tank on the outer periphery of the mouth.
Preferably, the sealing end face is provided with at least one sealing streak.

The sealed drainage device according to the present embodiment further includes a centrifugal component that moves under the action of centrifugal force in which the inner tank rolls, the centrifugal component is connected to the closing component, and the centrifugal component is closed by centrifugal movement. The parts are taken to open the drain.
The closing component is provided at the guide portion 35 provided so as to be reciprocating in the guide passage, the closing portion 36 provided at one end of the guide portion 35 for closing the drain port 39, and the other end of the guide portion 35. A connecting portion 34 for connecting to a centrifugal component is included, and the sealing material 40 is provided in the closing portion.

This embodiment is
The inner tub 17 that receives washing water independently when washing clothes,
A drainage port 39 for draining washing water, which is opened in the inner tank 17,
A drum-type washing machine equipped with the sealed drainage device, which is attached to the inner wall of the inner tub and includes a sealed drainage device in which the closing component opens the drainage port when the rotation speed of the inner tub reaches the set value V0, is simultaneously installed. offer.

In some embodiments, by having an extending wall between the drainage port 39 and the inner wall of the inner tank 17, the drainage port is projected inwardly or outwardly to the tank wall of the inner tank, and the closing component is provided. Is inserted into the extending wall and holds the sealing contact with the inner wall in the circumferential direction to close the drainage port and increase the sealing effect between the closing part and the drainage port 39.
Alternatively, the drainage port 39 and the inner wall of the inner tank 17 are provided flush with each other, and the closed part is sealed and contacted with the inner tank wall on the outer periphery of the drainage port in the circumferential direction, or sealed with the inner peripheral wall of the drainage port. It is closed and the drainage port is blocked.

Example 7,
As shown in FIGS. 13 and 18 to 22, regarding the sealing drainage device of the drum type washing machine of this embodiment, the drum type washing machine includes an inner tub 17 that independently receives washing water when washing clothes. A drainage port 39 is opened in the tank 17, and a sealed drainage device is installed.
It includes a closing component for closing the drain port by being sealed and contacted with the drain port.

The closed part is provided with a first sealing part 47 in which the cross-sectional areas of each cross section along the central axis are not equal, and the outer peripheral wall of at least one cross section is sealed and contacted with the drainage port in the circumferential direction to form a drainage port. Used for obstruction.

The closed component of the sealed drainage device of this embodiment has a first sealed component having a variable cross section, whereby the first sealed component is better sealed in the circumferential direction to the drain port and the drain port is sealed. Guarantee the effect.

As one embodiment of the present embodiment, the first sealing component includes a near-end portion provided near the drainage port and a far-end portion provided away from the drainage port, and the first sealing component 47. The cross-sectional area of each cross section from the near end to the far end along the central axis of is gradually increased.

Preferably, the first sealing component 47 is a tapered or conical trapezoidal sealing plug in which the cross-sectional area of each cross section from the near end to the far end gradually increases.

As one embodiment of the present embodiment, the inner tank 17 has a flat portion having a flat inner wall surface, the drain port 39 is opened in the flat portion, and at least one cross section of the first sealing component 47 is formed. The outer peripheral wall of the drainage port 39 is sealed and contacted in the circumferential direction to block the drainage port.
Alternatively, the drainage port is opened on the arcuate wall of the inner tank, and the inner tank wall on the outer periphery of at least one cross section of the first sealing component 47 is sealed and contacted with the drainage port in the circumferential direction to be contacted with the drainage port. To block.

A second sealing component located on the outer periphery of the first sealing component 47 is further provided in the closing component according to the present embodiment, and a space between the second sealing component and the inner tank wall on the outer periphery of the drain port 39 is provided. Sealing contact is made in the circumferential direction. In this embodiment, the first sealing component and the second sealing component realize multiple sealing between the closing component and the drain port 39, secure the sealing effect of the drain port 39, and prevent water leakage. ..

The second sealing component of this embodiment realizes the first double sealing on the outer circumference of the drain port, and the sealing contact between the first sealing component and the drain port guarantees the second double sealing.

As one embodiment of the present embodiment, the second sealing component includes a sealing convex portion 41 provided on the outer periphery of the first sealing component 47 for contact sealing, and the sealing convex portion 41 is a drain port. The drainage port is closed by holding the sealing contact with the inner tank wall on the outer periphery of 39.

In some embodiments, the first encapsulation component 47 and the second encapsulation component are each made of elastic material and attached to the closure component, respectively.
Alternatively, the first encapsulation part and the second encapsulation part are each made of an elastic material, and after the first encapsulation part and the second encapsulation part are integrally connected, they are attached to the obstruction part.
Alternatively, the first sealing component and the second sealing component are sealing plugs integrally made of an elastic material, and the sealing plug is attached to the closing component.

The sealed drainage device of the present embodiment further includes a centrifugal component that moves under the action of centrifugal force in which the inner tank rolls, the centrifugal component is connected to the closed component, and the centrifugal component is centrifugally moved to cause the closed component. Is taken to open the drainage port.
The closing component is connected to a guide portion provided so as to be reciprocating in the guide passage, a closing portion provided at one end of the guide portion for closing the drain port, and a centrifugal component provided at the other end of the guide portion. The first sealing component / second sealing component is provided in the closed portion, including the connecting portion for the purpose.

This embodiment is
An inner tub that receives washing water independently when washing clothes,
A drainage port for draining washing water, which is opened in the inner tank,
A drum-type washing machine equipped with the sealed drainage device, which is attached to the inner wall of the inner tub and includes a sealed drainage device in which the closing component opens the drainage port when the rotation speed of the inner tub reaches the set value V0, is simultaneously installed. Disclose.

In some embodiments, the drainage port 39 projects inwardly or outwardly into the tank wall of the inner tank by having an extending wall 48 extending between the drainage port 39 and the inner wall of the inner tank 17. The first sealing component 47 is inserted into the extending wall 48, and the drainage port is held so that the outer peripheral wall of at least one cross section is in contact with the inner peripheral wall of the extending wall 48 in the circumferential direction. To block.

In order to improve the sealing effect of the first sealing component 47, in some embodiments, the first sealing component 47 and the inner peripheral wall of the extending wall 48 of the drainage port are in surface contact or line contact. And seal the drain.

In some embodiments, the shapes of the inner peripheral wall of the extending wall and the outer peripheral wall of the first sealing component match each other.

In some embodiments, the first sealing component is a tapered or conical trapezoidal sealing plug in which the cross-sectional area of each cross section from the near end to the far end with respect to the drainage port gradually increases. The extending wall of the drainage port is a conical trapezoidal peripheral wall whose internal cross-sectional area gradually decreases along the direction away from the central axis of the inner tank from the inner tank wall.

Example 8,
As shown in FIGS. 1 and 23 to 25, the drum-type washing machine of this embodiment is
The inner tub 17 that receives washing water independently when washing clothes,
An inner tank drain port 39 for draining washing water, which is opened in the inner tank 17,
The mounting material 50 attached to the drainage port 39 on the inner wall of the inner tank 17 and
The mounting material drainage port 51, which is opened in the mounting material and communicates with the inner tank drainage port 39,
It includes a sealing drainage device including a closing component for closing the mounting material drain port 51.

The mounting material 50 of this embodiment and the inner tank wall are sealed and connected.

Preferably, the inner tank drainage port is opened on the inner wall of the inner tank, the mounting material includes a connection portion, and the connection portion and the inner tank wall on the outer periphery of the inner tank drainage port are sealed and connected.

The mounting material 50 of the present embodiment further includes an end cap portion, holds that the two opposing side walls of the flat portion are sealed and connected to the inner wall of the inner tank, and the other two facing sides of the flat portion. Each of the side walls to be connected is connected to the end cap portion, and the end cap portion is held to be sealed and connected to the inner wall of the inner tank.

Preferably, the flat portion and the end cap portion are integrally molded.

In this embodiment, the sealing drainage device closes the mounting material drainage port 51 by attaching the mounting material 50 having the mounting material drainage port 51 communicating with the inner tank drainage port 39 to the inner wall of the inner tank. The tank drainage port 39 can be sealed, the arc-shaped wall structure of the inner tank in the related technology is not changed, and the sealing drainage device can be sealed and mounted by the mounting material 50, and the mounting structure is simple. Moreover, since the mounting material has a flat portion that is sealed and engaged with the closed part, the sealing effect is better.

In some embodiments, the inner tank drainage port is provided on the arcuate wall of the inner tank, the mounting material includes a connection portion, and between the connection portion and the inner tank wall on the outer periphery of the inner tank drainage port. Is sealed and connected.

In some embodiments, the flat portion is a flat plate, the end cap portion further comprises an end cap plate, and two opposing side walls of the flat plate are sealed and connected to the arcuate inner wall of the inner tank. The other two opposite side walls of the flat plate are connected to the end cap plate, respectively, and the end cap plate is sealed and connected to the arcuate inner wall of the inner tank.

Preferably, the flat plate and the end cap plate are integrally molded.

As shown in FIGS. 23 and 24, as one embodiment of the present embodiment, a sealing connection 52 is realized or a sealing connection is realized by providing a sealing ring 52 between the mounting material 50 and the inner wall of the inner tank. The mounting material 50 is welded to the inner wall of the inner tank.

The cross-sectional area of the opening of the inner tank drain port 39 of this embodiment is equal to or larger than the cross-sectional area of the mounting material drain port 51, whereby the water discharged by the mounting material drain port 51 at the time of drainage is timely in the inner tank. It can be drained through the drain port 39, ensuring smooth drainage.

Preferably, both the inner tank drainage port and the mounting material drainage port are circular holes, and the hole diameter of the inner tank drainage port is larger than the hole diameter of the mounting material drainage port.

In some embodiments, the central axis of the inner tank drainage port and the central axis of the mounting material drainage port are provided on the same line, whereby the water discharged by the mounting material drainage port 51 is straightened to drain the inner tank. It is avoided that the water flows out to the port 39 and is discharged, and the outflow route from the mounting material drainage port 51 to the inner tank drainage port 39 is obstructed and affects the drainage effect.

In order to increase the sealing effect between the sealing drainage device and the mounting material drainage port 51, the sealing engagement is located on the outer periphery of the mounting material drainage port 51 on the flat portion and is sealed and engaged with the closing component. A portion 54 is provided.

Preferably, the sealing engaging portion 54 is a sealing bar provided on the outer periphery of the drainage port at least once, and the sealing bar is sealed and contacted with the sealing portion of the closing component.

In some embodiments, the mounting material drainage port 51 is projected inward or outward in the flat portion by having the mounting material extending wall 53 between the mounting material drainage port 51 and the flat portion. A first sealing component 47 is provided on the closed component, the first sealing component 47 is inserted into the mounting material extending wall 53, and the outer peripheral wall of at least one cross section is the inner peripheral wall of the mounting material extending wall 53. Holds in contact with the seal.

In some embodiments, the first sealing component 47 and the inner peripheral wall of the mounting material extending wall 53 are in surface contact or line contact to seal the mounting material drainage port.

Preferably, the shapes of the inner peripheral wall of the mounting material extending wall 53 and the outer peripheral wall of the first sealing component 47 match each other.

In some embodiments, the first sealing component 47 is a tapered or conical trapezoidal sealing plug in which the cross-sectional area of each cross section from the near end to the far end with respect to the mounting material drainage port gradually increases. The mounting material extending wall 53 is a conical trapezoidal peripheral wall whose internal cross-sectional area gradually decreases in a direction away from the central axis of the inner tank from the flat portion.

In some embodiments, a garment lifting device is provided on the inner wall of the inner tank, the garment lifting device has an internal chamber and a communication hole 33 for communicating the inside of the inner chamber and the inner tank, and the drainage port is provided. It is opened on the tank wall of the inner tank located in the inner chamber, and the mounting material 50 and the sealing drainage device are both provided in the inner chamber.

The lifting device of the present embodiment is a lifter 32, the lifter 32 has a lifter base 58 attached to the inner wall of the inner tank, and a lifter convex portion 49 protruding into the inner tank, and the communication hole 33 has the lifter convex. The mounting member 50 is provided in the portion 49 and is sealed and connected to the lifter base portion 58 in the circumferential direction.

The sealed drainage device of the present embodiment further includes a centrifugal component that moves under the action of centrifugal force in which the inner tank rolls, the centrifugal component is connected to the closed component, and the centrifugal component is centrifugally moved to cause the closed component. Is taken so as to open the mounting material drainage port.

Example 9,
As shown in FIGS. 13 and 26 to 27, the drum-type washing machine of this embodiment has
The inner tub 17 that receives washing water independently when washing clothes,
The mounting port opened in the inner tank 17 and
The mounting material 50 to be sealed and mounted in the mounting port,
The mounting material drainage port 51 opened in the mounting material and
It includes a sealing drainage device including a closing component for closing the mounting material drain port.

In this embodiment, by attaching the mounting material 50 having the mounting material drainage port 51 to the mounting port of the inner tank, the sealing drainage device closes the mounting material drainage port 51 to seal the inner tank drainage port. It can be realized, the arc-shaped wall structure of the inner tank in the related technology is not changed, and the sealing drainage device is sealed and mounted by the mounting material 50, the mounting structure is simple, and the mounting material is a closed part. The sealing effect is better because it has a flat portion that seals and engages with.

In some embodiments, the mounting port is opened in the tank wall of the inner tank, the mounting material 50 includes a connection portion, and the connection portion and the inner peripheral wall of the mounting port are sealed and connected. ..

The mounting material of the present embodiment includes a flat portion, and the mounting material drainage port is provided in the flat portion.

In order to realize sealing of the closing component to the mounting material drainage port 51, as one embodiment of the present embodiment, the outer wall located on the outer periphery of the mounting material drainage port 51 on the flat portion is sealed with the closing component. A sealing engagement portion 54 to engage is provided.

Preferably, the sealing engaging portion 54 is a sealing bar provided on the outer periphery of the mounting material drain port at least once, and the sealing bar is sealed and contacted with the closing component.

In another embodiment of the present embodiment, the closing component has at least one round of sealing bar, and the sealing bar holds the sealing bar in contact with the flat portion on the outer periphery of the mounting material drain port 51.
And / or, a sealing material is provided on the closed part, the sealing material has a sealing bar at least one circumference, and the sealing bar makes a sealing contact with the outer wall surface of the flat portion on the outer periphery of the mounting material drain port. To hold.

As another embodiment of the present embodiment, the outer wall located on the outer periphery of the mounting material drainage port of the flat portion is provided with a first sealing bar at least one circumference, and the sealing material is provided on the closed part. , The sealing material has at least one round of the second sealing bar, the first sealing bar and the second sealing bar are alternately provided, and the first sealing bar is provided on the flat end surface of the sealing material. It holds the sealing contact and keeps the second sealing bar in the sealing contact with the flat flat portion on the outer periphery of the mounting material drain port.

In order to increase the sealing effect of the closing component on the mounting material drainage port, in some embodiments, the mounting material has a mounting material extending wall 53 between the mounting material drainage port 51 and the flat portion. The drainage port 51 is projected inwardly or outwardly from the flat portion, the closed portion is provided with the first sealing component 47, the first sealing component 47 is inserted into the mounting material extending wall 53, and at least. It holds that the outer peripheral wall of one cross section is in contact with the inner peripheral wall of the mounting material extending wall in the circumferential direction.

In some embodiments, the first sealing component 47 and the inner peripheral wall of the mounting material extending wall 53 are in surface contact or line contact to seal the mounting material drainage port.
In some embodiments, the shapes of the inner peripheral wall of the mounting material extending wall 53 and the outer peripheral wall of the first sealing component 47 match each other.
In some embodiments, the first encapsulation component 47 is a taper encapsulation plug in which the cross-sectional area of each cross section from the near end to the far end with respect to the mounting material drainage port gradually increases. The material extension wall 53 is a truncated cone peripheral wall whose internal cross-sectional area gradually decreases in the direction away from the central axis of the inner tank from the flat portion.

A clothes lifting device is provided on the inner wall of the inner tank 17 of the present embodiment, and the clothes lifting device has an internal chamber and a communication hole for communicating the inside of the inner chamber and the inner tank, and the mounting port is the inner chamber. It is opened on the tank wall of the inner tank located inside, and the sealing drainage device is provided in the inner chamber.

The drainage sealing device of the present embodiment further includes a centrifugal component that moves under the action of centrifugal force in which the inner tank rolls, the centrifugal component is connected to the closed component, and the centrifugal component is centrifugally moved to cause the closed component. Is taken so as to open the mounting material drainage port.

In some embodiments, the centrifugal component comprises a counterweight and a connecting material, one end of the connecting material is connected to the counterweight, the other end is connected to the obstructing component, and the middle part of the connecting material rolls on a rotating shaft. It has a rotating shaft hole that can be mounted.
Preferably, the counterweight and the connecting material are integrally molded.

In addition, those skilled in the art may carry out by themselves based on the description of each of the above-mentioned Examples, or may carry out by combining with each other.

The drum-type washing machine of the present application is a closed chamber that includes an inner tub that receives washing water independently when washing clothes, the inner tub adopts a non-perforated inner tub design, and the inside has a ventilation hole during washing. It is possible to receive washing water independently when washing and rinsing the washing machine, there is no water between the inner tub and the outer tub, the purpose of water saving is achieved, and dirt is removed between the inner tub and the outer tub. Avoid forming, keep the tub wall clean, improve the user experience, and open a drain in the inner tub of the washing machine, which drains during the drainage and / or dehydration process.

The sealed drainage device disclosed in the present application drives the centrifugal component to move centrifugally by using the centrifugal force that the inner tank rolls, and the centrifugal component moves the closed part to open the drainage port. Take it and realize drainage. In principle, drainage can be realized by setting the rotation speed of the inner tub using the work characteristics of the drum type washing machine, and it is easy to realize. The structure is simple.

Therefore, the sealed drainage device of the present application realizes that a drum-type washing machine having a non-perforated inner tank holds the seal of the drain port during washing and rinsing, and the non-perforated inner tank independently receives water. On the other hand, by realizing centrifugal drainage by controlling the rotation speed of the inner tub during drainage and / or dehydration, the problem of sealing and drainage of a drum type washing machine having a non-perforated inner tub was realized.

Claims (13)

A sealed drainage device applicable to drum-type washing machines.
The drum-type washing machine includes an inner tub configured to receive washing water independently when washing clothes, and a drainage port is opened on the inner tub.
The sealed drainage device is
Centrifugal parts configured to move the inner tank under the action of rolling centrifugal force,
Including a blockage component configured to block the drain.
The centrifuge component is connected to the obstruction component, and the centrifuge component centrifuges to entrain the obstruction component so as to open the drainage port.
Sealed drainage device. Both the centrifugal part and the closed part can reciprocate along the radial direction of the inner tank.
The obstruction component is in the same or opposite direction as the centrifugal component moves under the entrainment of the centrifugal component.
The sealed drainage device according to claim 1. The centrifugal component moves away from the central axis of the inner tank along the radial direction of the inner tank under the action of centrifugal force in which the inner tank rolls.
The obstructed part moves toward the central axis of the inner tank along the radial direction of the inner tank under the entrainment of the centrifugal part.
The sealed drainage device according to claim 1. The obstruction component comprises an obstruction material and an elastic material.
The elastic material is configured to act on the closing material to hold the closing material from sealing and closing the drainage port.
The centrifugal component is connected to the obstructor and
When the centrifugal component moves centrifugally, the closing material moves and is taken to open the drainage port.
The sealed drainage device according to claim 1. The closed part and the drainage port are directly sealed and contacted to close the drainage port.
Alternatively, the closing part and the drainage port are sealed and contacted by a sealing material to close the drainage port.
The sealed drainage device according to claim 4. The closed part has a sealing convex portion for contact-sealing in the circumferential direction, and the sealing convex portion is held to be sealed and contacted with the inner tank wall or the inner wall on the outer periphery of the drainage port. Block the drain,
And / or at least one of the inner wall of the drainage port and the inner tank wall on the outer periphery has a sealing convex portion for contact-sealing in the circumferential direction, and the sealing convex portion seals the closed part. Holds contact and closes the drain,
And / or, the sealing material has a sealing protrusion for contact-sealing in the circumferential direction, and seals between the closing component and at least one of the drainage ports and the sealing protrusion. The sealed drainage device according to claim 5, wherein the drainage port is closed by being in contact with each other. Including cases with guide passages inside
The closing material is provided at a guide portion provided so as to be reciprocating in the guide passage, a closing portion provided at the first end of the guide portion for closing the drainage port, and a second end of the guide portion. Includes a connection for connecting to the centrifugal component
The elastic material is attached in the case, the first end of the elastic material is in contact with the case, and the second end of the elastic material is in contact with the closing material.
The sealed drainage device according to claim 4. The centrifuge component contains a counterweight and a connecting material.
The first end of the connecting material is connected to the counterweight, the second end of the connecting material is connected to the closing component, and a rotating shaft hole rotatably attached to the rotating shaft is provided in the middle of the connecting material. Have,
The sealed drainage device according to any one of claims 1 to 7. The counterweight and the connecting material are integrally molded.
The sealed drainage device according to claim 8. An inner tub that is configured to receive washing water independently when washing clothes,
A drainage port opened on the inner tank for draining washing water,
Including a sealed drainage device,
The sealed drainage device is the sealed drainage device according to any one of claims 1 to 9.
The sealed drainage device is mounted on the inner wall of the inner tank,
The centrifugal component centrifuges under the action of centrifugal force that causes the inner tank to roll, and the blocked component is entrained so as to open the drain port.
Drum type washing machine. Between the weight M of the entire centrifugal component, the rotation speed V of the inner tank, the elastic urging force F0 of the elastic material, and the mass m of the entire closing material,
When the rotation speed V of the inner tank reaches the set value V0, the centrifugal component starts centrifugal motion under the action of the centrifugal force of the inner tank, and the centrifugal force generated by the centrifugal component is the elastic urging force F0 and the blocking material. It corresponds to overcoming the centrifugal force of the above and driving the closing material to move along the radial direction of the inner tank and close to the central axis of the inner tank to open the drain port.
The drum-type washing machine according to claim 10. A clothes lifting device is provided on the inner wall of the inner tank.
The clothes lifting device has an internal chamber and a communication hole that communicates between the internal chamber and the inside of the inner tank.
The drainage port is opened on the tank wall of the inner tank located in the inner chamber.
The sealed drainage device is provided in the internal chamber.
The drum-type washing machine according to claim 10 or 11. The control method for a drum-type washing machine according to any one of claims 10 to 12.
The drum-type washing machine controls the rotation speed V of the inner tub to satisfy V ≧ V0 in at least one process of drainage and dehydration, and the centrifugal component acts on the centrifugal force that causes the inner tub to roll. Including moving down and entraining the obstruction part to open the drain.
Here, V0 is a set value.
How to control a drum-type washing machine.

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