WO2018196844A1

WO2018196844A1 - Washing machine washing drum and washing machine

Info

Publication number: WO2018196844A1
Application number: PCT/CN2018/084806
Authority: WO
Inventors: 郝兴慧; 劳春峰; 许升; 吕艳芬; 吴迪; 李以民
Original assignee: 青岛海尔洗衣机有限公司; 青岛海尔智能技术研发有限公司
Priority date: 2017-04-28
Filing date: 2018-04-27
Publication date: 2018-11-01
Also published as: CN108796972A; US20210115615A1; CN108796972B

Abstract

A washing machine washing drum (2) and a washing machine. The washing drum (2) is rotatably mounted within a washing machine housing (1) and is configured as a structure for holding garments and washing water. Provided on the exterior of the washing drum (2) is a drainage channel (5) for draining water downwards. At least the inner wall surface of a side of the drainage channel (5) away from the washing drum (2) is provided at an offset in the direction moving gradually away downwards from the central axis of the washing drum (2). The washing machine comprises the housing (1), the washing drum (2), and a mount plate (4) mounted below the washing drum (2) and used for supporting the washing drum (2), the mount plate (4) being connected to the housing (1) via a damping part. The washing machine obviates an outer drum structure, thus achieving the goal of washing machine volume expansion; on the other hand, with the drainage channel (5) provided on the exterior of the washing drum (2), washing water is guided to flow downwards, thus preventing the washing water from concentrating at the upper end of the washing drum (2), reducing noise when operating, and extending service life.

Description

Washing machine washing bucket and washing machine

Technical field

The present invention relates to a laundry device, and more particularly to a washing machine washing tub and a washing machine having the same.

Background technique

The existing pulsator washing machine generally comprises a washing tub, an outer tub, a vibration damping component and a power system. During washing and dehydrating, the washing tub rotates relative to the outer tub to cause the laundry and the washing water to act to wash the laundry or dehydrate. The purpose is that the outer tub is used as a water tub, and the laundry is not in contact with the laundry during the washing process, and the outer tub is installed outside the washing tub to provide support for the washing tub, and the outer tub of the existing washing machine is relatively larger than the washing tub. The amount of washing water between the inner and outer barrels is large and cannot be fully utilized. This arrangement is not only unfavorable for water saving, but also causes the overall volume of the washing machine to be large.

The Chinese patent application No. CN99230455.5 discloses a single-barrel type water-saving washing machine, which is provided with a water collecting device at the barrel mouth of the washing tub, and the water collecting port of the water collecting device is enclosed in the barrel of the washing tub. At the mouth, the water collecting device is located at the mouth of the bucket and is connected to a plurality of drain pipes. They are arranged symmetrically from top to bottom along the outer wall of the washing tub. When the tank is dry, the water collecting device collects the centrifugal water flowing due to the high speed and The guide is drained downwards. Although the structure eliminates the outer tub, when the washing machine is dehydrated, the washing water enters the water collecting device and is concentrated in the collecting chamber under the action of centrifugal force, and it is difficult to flow down the drain pipe. The washing water is concentrated on the upper end of the washing tub, so that the upper and lower ends of the washing tub are unbalanced. Especially when there is more water remaining in the washing tub, most of the washing water is concentrated in the collecting chamber and is not discharged, thereby increasing the overall center of gravity of the inner tub and increasing the inner tub. Vibration increases the working load of the dehydration motor and easily damages the motor.

The present invention has been made in view of the above.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the deficiencies of the prior art and to provide a washing tub capable of expanding the volume of the washing tub, preventing the washing water from being concentrated above the washing tub and increasing the speed of the draining during dehydration.

In order to achieve the object, the present invention adopts the following technical solution: a washing machine washing tub rotatably installed in a washing machine box, configured to hold clothes and washing water, and the outer side of the washing tub is provided from top to bottom a drainage passage that drains at least away from the inner wall surface on the side of the washing tub from the upper side to the lower side away from the central axis of the washing tub.

Further, the upper end of the drainage channel is provided with a water inlet, and the lower part is provided with a water outlet, and the drainage channel defines a drainage cavity communicating with the water inlet and the water outlet.

Further, the drainage chamber is separately defined by the upper and lower hollow structures inside the drainage channel, or the drainage chamber is defined by the drainage channel covering the peripheral wall surface of the washing tub.

Further, the drainage channel comprises a water channel housing and a part of the washing tub wall, and the water channel housing is fastened to the washing tub wall to form a water flow passage together with the washing tub wall.

Further, the drainage channels are at least one, preferably at least two, and are disposed along a circumferential interval of the washing tub.

Further, the upper end of the washing tub is provided with an upper water collecting ring, and the upper collecting water ring is provided with a dewatering hole communicating with the inside of the washing tub toward the washing tub, and the upper end of the drainage channel is connected with the upper collecting ring, and The water in the upper collecting ring is guided downwards.

Further, a bottom of the washing tub is provided with a drain port, and a lower end of the drain channel communicates with a drain port at the bottom of the washing tub.

Further, a top end of the washing tub is provided with a balance ring, and the dewatering hole is disposed on a lower side of the balance ring. The inner diameter of the balance ring is smaller than the inner diameter of the upper end of the washing tub to block the water in the washing tub from crossing the balance ring.

Further, the lower end of the washing tub is provided with a lower collecting ring, the lower collecting ring is disposed at the outer periphery of the washing tub, and the inner side of the lower collecting ring is provided with an opening communicating with the drain opening provided at the bottom of the washing tub. The lower end of the drain passage communicates with the lower water collecting ring, and communicates with the drain port at the bottom of the washing tub through the lower collecting ring.

Further, the inner wall surface away from the side of the washing tub comprises at least two inclined walls, each of which is inclined obliquely from the top to the bottom in a direction away from the central axis of the washing tub, and the inclined angles of the inclined walls are different or the same .

Further, the inclined walls are connected in sequence, or at least two parallel walls parallel to the central axis of the washing tub are connected between the two inclined walls.

The present invention also provides a washing machine having the above washing tub.

Further, the washing machine further comprises a water receiving device disposed under the washing tub for collecting the washing water discharged in the washing tub, the water receiving device has a cavity structure for accommodating the washing water, and the drain opening at the bottom of the washing tub is located in the cavity structure The bottom of the cavity structure is connected with a drain pipe that drains outward.

Further, the water receiving device includes a mounting plate installed at a lower portion of the washing tub for supporting the washing tub, the washing tub is rotatably disposed with respect to the mounting plate, and the mounting plate is connected to the box through the vibration damping component, and the mounting plate is provided with a block. a water ring, the water retaining ring extending toward the washing tub to form the cavity structure.

Further, the drain port at the bottom of the washing tub is provided with a valve plug for controlling the opening or closing of the drain port. Preferably, the valve plug is telescopically mounted on the mounting plate.

Further, the top of the water retaining ring is higher than the bottom surface of the washing tub, and a certain gap is reserved between the inner peripheral wall of the water retaining ring and the outer peripheral wall of the washing tub.

Further, the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub, and cooperates with the washing tub, and is configured to restrict the rotation of the washing tub during the washing process.

Further, the washing machine further comprises: a power device for driving the rotation of the washing tub, the power device is fixedly mounted on the bottom of the mounting plate, and includes a motor and a deceleration clutch, and the rotating shaft of the motor is connected to the bottom of the washing tub through a deceleration clutch to drive the washing tub Rotate.

Further, the vibration damping component comprises a boom and a boom base, and the edge of the mounting plate is provided with a bayonet engaging with the boom seat, the boom seat is stuck in the bayonet and located at the mounting plate. Lower side.

After adopting the technical solution described in the present invention, the following beneficial effects are brought about:

The washing machine of the invention eliminates the structure of the outer tub, and the washing tub directly serves as a water tub, which can improve the utilization rate of the washing water and reduce the usage amount of the washing water, and at the same time, after the outer tub is omitted, the volume of the washing tub can be set more. The amount of laundry that can be washed is increased, and the purpose of expanding the washing machine is achieved. On the other hand, the outside of the washing tub of the present invention is provided with a drainage channel. When the washing machine is dehydrated, the drainage channel can guide the washing water to flow downward, avoiding washing. The water is concentrated at the upper end of the washing tub, which makes the washing tub rotate more stably, and has lower noise and long service life.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

Figure 1: is a cross-sectional view showing the structure of the present invention;

Figure 2 is a cross-sectional view showing the structure of the washing tub of the present invention;

Figure 3 is a partial enlarged view of K of Figure 1;

Figure 4 is a partial enlarged view of Y of Figure 2;

Among them: 1, box body 2, washing tub 3, power unit 4, mounting plate 5, drainage channel 6, drain pipe 7, balance ring 8, dehydration hole 9, boom 10, boom seat 11, water collecting ring 12, Lower water collecting ring 13, water retaining ring 14, locking mechanism 15, valve plug 16, water channel housing.

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

detailed description

The embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected in one piece; either directly or indirectly through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

As shown in FIGS. 1 to 4, a washing machine includes a case 1, a washing tub 2 for accommodating laundry, a power unit 3 for driving the washing tub 2 to rotate, and a mounting plate 4 mounted at a lower portion of the washing tub 2. And a vibration damping member that connects the mounting plate 4 and the case 1. The washing tub 2 is rotatably disposed in the casing 1, the washing tub 2 is seated on the mounting plate 4, and is rotatable relative to the mounting plate 4, the washing tub 2 is used as a tub for accommodating washing water, and the mounting plate 4 is used for The washing tub 2 is supported, and the mounting plate 4 is movably connected to the casing 1 through a vibration damping member, and when washing or dehydrating, the washing tub 2 and the mounting plate 4 generate vibration, which is transmitted to the vibration damping member and absorbed.

The outer side of the washing tub 2 of the present invention is provided with a plurality of drainage channels 5, the drainage channels 5 are vertically disposed, and the drainage channels 5 are at least far from the inner wall surface of the washing tub 2 side from the top to the bottom and away from the washing tub. The direction of the axis is deviated so that the water in the drainage channel 5 flows downward under the centrifugal force. The upper end of the washing tub 2 is provided with a water collecting ring 11, and the inner side of the water collecting ring 11 is provided with a dehydrating hole 8 communicating with the washing tub 2. The upper end of the drain passage 5 communicates with the water collecting ring 11 and the lower end communicates with the drain port provided at the bottom of the washing tub 2.

A person skilled in the art can think that in order to make the water in the water channel 5 flow downward under the centrifugal force, as long as a part of the inner wall surface is gradually displaced from the top to the bottom away from the axis of the washing tub, the present invention is The inner wall surface away from the washing tub side can be disposed to have at least two inclined walls, each of which is inclined from the top to the bottom in a direction away from the central axis of the washing tub, and the inclined angles of the inclined walls can be different. It can also be the same.

Further, the inclined walls may be directly connected in series or indirectly connected, specifically, a parallel wall parallel to the central axis of the washing tub is connected between the at least two inclined walls.

The inner diameter of the washing tub 2 of the present invention gradually increases from the bottom to the top. When the washing tub 2 rotates at a high speed, the washing water in the washing tub 2 will climb upward along the washing bucket wall under the action of centrifugal force, and rises to a certain extent. After the height enters the water collecting ring 11 from the dewatering hole 8 of the water collecting ring 11, the volume of the water collecting ring 11 is small, and the washing water will enter the drain channel 5 from the water collecting ring 11, and then flow down the drain channel 5, And finally discharged from the washing machine drain.

Specifically, the drainage channel 5 includes a water channel housing 16 and a partial washing tub wall. The water channel housing 16 is fastened to the washing tub wall. The upper end of the water channel housing 16 is connected to the water collecting ring 11 and the lower end extends to the washing. The bottom of the bucket 2.

The top end of the washing tub 2 is provided with a balance ring 7 which is located on the lower side of the balance ring 7. In order to avoid overflow of the wash water from the washing tub 2 during dehydration, the inner diameter of the balance ring 7 is smaller than the washing tub. The inner diameter of the upper end opening is such that a step surface is formed to block the water in the washing tub 2 from flowing upward over the balance ring 7. Specifically, the upper end of the washing tub 2 is provided with an annular bayonet stuck on the outer side of the bottom of the balance ring 7, and when the water in the washing tub 2 flows upward to contact with the balance ring 7, the bottom of the balance ring 7 will block the flow of water. The upward flow acts to collect the water flow into the dewatering hole 8.

Preferably, the dewatering holes 8 are plural and evenly distributed along the circumferential direction of the washing tub 2.

Preferably, the lower end of the washing tub 2 is provided with a lower water collecting ring 12, the lower water collecting ring 12 is disposed at the outer periphery of the washing tub 2, and the inner side of the lower water collecting ring 12 is provided with an opening and a drain opening at the bottom of the washing tub. In communication, the lower end of the drain passage 5 is connected to the lower water collecting ring 12, and communicates with the drain port at the bottom of the washing tub through the lower water collecting ring 12. The lower collecting ring 12 has a large volume, and a part of the water can be stored when the washing machine is dehydrated, and the balance ring 7 is used to balance the washing tub 2.

A water retaining ring 13 is disposed on the mounting plate 4, and the water retaining ring 13 is protruded from the upper surface of the mounting plate 4 toward the washing tub 2 and extends to a certain height to form a cavity structure for accommodating washing water, and the cavity structure is The bottom is provided with an opening and is connected to the drain pipe 6 of the washing machine. The drain pipe 6 is connected to the washing machine drain port, and the drain port at the bottom of the washing tub 2 is mounted with a valve plug 15 which is located inside the water retaining ring 13 to serve the valve. When the plug 15 is opened, it drains into the cavity structure. In the washing stage, the valve plug 15 is in the closed state, and in the dehydration stage, the valve plug 15 is in the open state. When the valve plug 15 is opened, the washing water in the washing tub 2 flows into the cavity structure, and is discharged from the drain pipe 6 to the washing machine. outer.

Preferably, the top of the water retaining ring 13 is higher than the bottom surface of the washing tub 2, and a certain gap is reserved between the inner peripheral wall of the water retaining ring 13 and the outer peripheral wall of the washing tub 2 to avoid when the washing tub 2 rotates. A collision occurs.

Preferably, the inner wall of the washing tub 2 is provided with a protrusion or a line for rubbing contact with the laundry, which can play a role of rubbing against the laundry during the washing process.

The power unit is mounted at the bottom of the mounting plate 4, and includes a motor and a reduction clutch. The rotating shaft of the motor is coupled to the bottom of the washing tub through a deceleration clutch to drive the washing tub 2 to rotate. The output shaft of the reduction clutch is connected to the washing tub 2 through the mounting plate 4, and at least one dynamic seal is provided between the output shaft and the mounting plate 4. Preferably, the bottom of the mounting plate 4 is provided with a plurality of downwardly convex reinforcing ribs.

A locking structure 14 is further disposed on the mounting plate 4, and the locking mechanism 14 is located at the bottom of the washing tub 2 and cooperates with the washing tub 2 to restrict the rotation of the washing tub 2, and the locking mechanism 14 can be locked. The washing tub 2 is moved to prevent the washing tub 2 from rotating. In the washing stage, the locking mechanism 14 locks the washing tub 2 so that it cannot rotate. At this time, the valve plug 15 blocks the drain port at the bottom of the washing tub, and the washing tub is filled with water. The container is washed by the pulsator in the washing tub; in the dehydration stage, the valve plug 15 is separated from the drain port, the washing water is discharged from the washing tub, and the locking mechanism 14 is unlocked, so that the washing tub 2 can be rotated, and the laundry can be The washing water is scooped out and climbed up along the barrel wall to be guided downward by the drainage channel.

The vibration damping member includes a boom 9 and a boom base 10, the upper end of the boom 9 is connected to the casing 1, and the lower end is connected to the boom base 10. The edge of the mounting plate 4 is provided with a boom base. 10 mating bayonet, the boom base 10 is card-shaped in the bayonet, and is located on the lower side of the mounting plate 4, and a spring is installed in the boom base 10, under the gravity of the mounting plate 4 and the washing tub 2, the boom The spring in the seat 10 is compressed and functions to reduce vibration when the washing tub 2 vibrates. The mounting plate 4 is located at the lower portion of the washing tub 2 such that the boom seat 10 is located below the washing tub 2, and does not occupy the space between the washing tub 2 and the casing 1, which is advantageous for expanding the volume of the washing tub 2.

The dehydration process of the washing machine of the present invention is that before the dehydration, the water in the washing tub 2 is first discharged through the drain port at the bottom of the washing tub 2, and then the motor drives the washing tub 2 to rotate at a high speed, and the water remaining in the washing tub 2 is under the action of centrifugal force. The wall of the washing tub climbs up and enters the drain channel 5. In the drain channel 5, the water flow changes the flow direction, flows downward, and flows out along the drain channel 5 to the washing tub 2, and falls into the cavity surrounded by the water retaining ring 13. Within the structure, it is finally discharged through the drain pipe 6 outside the washing machine.

The water receiving device disposed under the washing tub of the present invention may also be a barrel-shaped structure, and the mounting plate and the water retaining ring respectively correspond to a bottom of the barrel and a peripheral wall structure of the barrel.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

A washing machine washing tub is rotatably installed in a washing machine box, and is configured to hold laundry and washing water, wherein: the outer side of the washing tub is provided with a drain passage draining from the top to the bottom, the drain The inner wall surface of the passage at least away from the side of the washing tub is gradually offset from the upper side to the lower side away from the central axis of the washing tub.
The washing tub of claim 1 , wherein the upper end of the drain passage is provided with a water inlet, and the lower portion is provided with a water outlet, and the drain passage defines a drain chamber communicating with the water inlet and the water outlet. .
A washing machine washing tub according to claim 2, wherein said drain chamber is separately defined by an upper and lower hollow structure inside said drain passage, or said drain chamber is covered by said drain passage in washing The peripheral wall surfaces of the barrel are collectively defined.
The washing machine washing tub according to claim 1, wherein the drain passage comprises a waterway casing and a part of the washing tub wall, and the waterway casing is fastened to the washing tub wall to form a water flow together with the washing tub wall. aisle.
A washing machine washing tub according to any one of claims 1 to 4, wherein said drain passages are at least one, preferably at least two, and are disposed along a circumferential interval of said washing tub.
The washing tub of any one of claims 1-5, wherein the upper end of the washing tub is provided with an upper water collecting ring, and the upper water collecting ring is provided with dehydration communicating with the inside of the washing tub toward the washing tub side. The hole, the upper end of the drainage channel communicates with the upper water collecting ring, and guides the water in the upper water collecting ring downward.
The washing tub of any one of claims 1-6, wherein a bottom of the washing tub is provided with a drain port, and a lower end of the drain passage is in communication with a drain port at the bottom of the washing tub.
The washing tub of claim 6, wherein a top end of the washing tub is provided with a balance ring, and the dewatering hole is disposed on a lower side of the balance ring, and an inner diameter of the balance ring is smaller than an inner diameter of the upper end of the washing tub. To block the water in the wash tub from crossing the balance ring.
The washing tub of any one of claims 1-6, wherein the lower end of the washing tub is provided with a lower collecting ring, and the lower collecting ring is disposed at the periphery of the washing tub, and the lower collecting ring The inner side is provided with an opening communicating with a drain port provided at the bottom of the washing tub, and the lower end of the drain passage communicates with the lower water collecting ring, and communicates with the drain port at the bottom of the washing tub through the lower water collecting ring.
The washing machine washing tub according to any one of claims 1-9, wherein the inner wall surface away from the washing tub side comprises at least two inclined walls, and each inclined wall gradually moves away from the washing tub from top to bottom. The direction of the central axis deviates from the inclination, and the inclination angles of the inclined walls are different or the same.
A washing machine washing tub according to claim 10, wherein said inclined walls are connected in series, or at least a parallel wall parallel to the central axis of the washing tub is connected between at least two inclined walls.
A washing machine characterized by having the washing tub according to any one of claims 1-11.
The washing machine according to claim 12, further comprising: a water receiving device disposed under the washing tub for collecting the washing water discharged from the washing tub, the water receiving device having a cavity structure for accommodating the washing water, the washing tub The bottom drain port is located in the cavity structure, and the bottom of the cavity structure is connected with a drain pipe that drains outward.
A washing machine according to claim 13, wherein said water receiving means comprises a mounting plate installed at a lower portion of the washing tub for supporting the washing tub, the washing tub being rotatably disposed relative to the mounting plate, the mounting plate passing through the vibration damping member and The casing is connected, and a water retaining ring is disposed on the mounting plate, and the water retaining ring extends toward the washing tub to form the cavity structure.
The washing machine according to claim 14, wherein the drain port at the bottom of the washing tub is provided with a valve plug for controlling opening or closing of the drain port. Preferably, the valve plug is telescopically mounted to the mounting plate.
The washing machine according to claim 14, wherein the top of the water retaining ring is higher than the bottom surface of the washing tub, and a certain gap is reserved between the inner peripheral wall of the water retaining ring and the outer peripheral wall of the washing tub.
The washing machine according to claim 14, wherein the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub, and cooperates with the washing tub, and is configured to limit the washing tub during the washing process. Turn.
A washing machine according to claim 14, further comprising: a power device for driving the rotation of the washing tub, the power device being fixedly mounted at the bottom of the mounting plate, including the motor and the deceleration clutch, and the rotating shaft of the motor is decelerated The clutch is coupled to the bottom of the wash tub to drive the wash tub to rotate.
A washing machine according to claim 14, wherein said vibration damping member comprises a boom and a boom seat, and said mounting plate has a bayonet on the edge of said mounting plate, said boom The seat card is in the bayonet and is located on the underside of the mounting plate.