WO2018192547A1

WO2018192547A1 - Washing machine

Info

Publication number: WO2018192547A1
Application number: PCT/CN2018/083721
Authority: WO
Inventors: 吕佩师; 许升; 吕艳芬; 郝兴慧; 吴迪
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2017-04-19
Filing date: 2018-04-19
Publication date: 2018-10-25
Also published as: CN108729102B; CN108729102A

Abstract

A washing machine, comprising a casing (1), a washing barrel (2), and a mounting board (4) provided at the lower part of the washing barrel (2). The mounting board (4) is connected to the casing (1) by means of a vibration damping component; the washing barrel (2) is a water barrel and can rotate with respect to the mounting board (4); a flexible sealing structure is provided between an outer edge of the mounting board (4) and the casing (1); the flexible sealing structure forms a sunken annular groove (18) to collect washing water flowing downwards along the inner wall of the casing (1); and a secondary water discharge port (17) is formed at the bottom of the annular groove (18) and is communicated with the washing machine. The washing machine omits an outer barrel structure, achieving the purpose of expansion of the washing machine; the problem of short circuits of the washing machine caused by spills of washing water is avoided; and the service life of the washing machine is effectively prolonged.

Description

Washing machine

Technical field

The present invention relates to laundry equipment, and more particularly to a washing machine.

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, and a water collecting device is arranged at the barrel mouth of the washing bucket, and the water collecting port of the water collecting device is covered around the barrel of the washing tub. Wherein, 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 directs it to The lower guide is drained. Although the patent saves the outer tub, the drain pipe is located outside the tub. When the washing machine is dehydrated, it easily hits the inner wall of the tank, causing the drain pipe to wear and leak, and the leaked washing water directly enters the motor and other equipment. , causing a short circuit in the washing machine.

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

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and to provide a washing machine capable of expanding the volume of the washing tub, improving the water saving effect, and preventing the short circuit of the washing water from being caused by the splashing of the washing water.

In order to achieve the object, the present invention adopts the following technical solutions:

A washing machine includes a box body, a washing tub and a mounting plate disposed at a lower portion of the washing tub, wherein the mounting plate is connected to the box body through a vibration damping member, the washing tub is a water tub in the washing stage, and the washing board is opposite to the mounting board in the dehydrating stage. Rotating, a flexible sealing structure is further disposed between the outer edge of the mounting plate and the casing, and the flexible sealing structure forms a submerged annular groove to collect the washing water flowing down the inner wall of the casing.

Further, the peripheral wall of the washing tub is provided with a drainage channel, and the drainage channel is drained from the top to the bottom.

Further, the upper end of the washing tub is provided with a water collecting ring, and the inner side of the water collecting ring is provided with a dehydrating port, the upper end of the drain channel is connected with the water collecting ring, and the lower end is connected with the drain port provided at the bottom of the washing tub. .

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. In the washing stage, the control valve plug is closed, and in the draining and dehydrating stages, the control valve plug is opened.

Further, the bottom of the annular groove is provided with a secondary drain port, and the auxiliary drain port communicates with the outside of the washing machine.

Further, the annular groove includes a first mounting structure extending from an edge of the mounting board, a second mounting structure protruding from an outer wall surface of the first mounting structure, and connecting the first mounting structure and the second Install the sealing ring of the structure.

Further, the sealing ring is an elastic structure and is sealingly connected to the first mounting structure and the second mounting structure, and the bottom of the sealing ring is provided with a secondary drain.

Further, the sealing ring has a bottom wall and two side walls, at least two side walls have elasticity, and the first mounting structure is a first annular flange formed by extending downward from an outer edge of the mounting plate, the second The mounting structure includes a horizontal section extending horizontally from the inner wall of the tank and a second annular flange connected to the horizontal section and extending downward.

Further, one side wall of the sealing ring is press-fixed to the first annular flange by a fastening ring, and the other side wall is press-fixed to the second annular flange by another fastening ring on.

Further, a surface of the mounting plate is provided with a ring-shaped water retaining ring, and the water retaining ring extends upward from the upper surface of the mounting plate to form a cavity structure for accommodating washing water, and the water outlet of the drainage channel is located in the cavity. Within the structure, the annular groove is located outside the water retaining ring.

Further, a main drain port is disposed on the mounting plate and inside the water retaining ring, and the main drain port communicates with the outside of the washing machine through the washing machine drain pipe, and the auxiliary drain port provided at the bottom of the annular groove passes through the branch water pipe and the washing machine drain pipe connection.

Further, the drainage channel comprises a water channel housing and a part of the washing tub wall, and a side of the water channel housing facing the washing tub wall is provided with a vertically penetrating groove, and the water channel shell is fastened on the washing tub wall, and washing The walls of the barrel together form a water flow channel.

Further, the water collecting ring is provided with a water deflecting plate for guiding the washing water into the drainage channel, and the water retaining plate is located above the water inlet of the drainage channel and is inclined at an angle to the horizontal plane.

Further, the side of the water collecting ring facing the axis of the washing tub is a curved surface, and the curved surface is gradually bent from the bottom to the center of the washing tub along the axial direction of the washing tub, and the dewatering port of the collecting ring is disposed at The bottom end of the curved face.

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

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 is designed as a water tub structure, which can improve the utilization rate of the washing water and reduce the usage amount of the washing water, and at the same time, the volume of the washing tub can be set after the outer tub is omitted. Larger, 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 annular groove of collecting the washing water flowing along the inner wall of the tank is provided between the mounting plate and the casing of the present invention, completely avoiding The short-circuit problem of the washing machine caused by the splash of washing water effectively extends the service life of the washing machine.

DRAWINGS

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

Figure 2 is a structural view of a part of the drainage channel of the present invention;

Figure 3 is a partial enlarged view of Y of Figure 2;

Figure 4 is a partial enlarged view of K of Figure 1;

Among them: 1, box 2, washing bucket 3, power unit 4, mounting plate 5, drainage channel 6, drain pipe 7, balance ring 8, water collecting ring 9, boom 10, boom seat 11, water channel housing 12 Water retaining ring 13, water retaining plate 14, locking mechanism 15, valve plug 16, main drain port 17, auxiliary drain port 18, annular groove 19, first annular flange 20, second annular flange 21, sealing ring 22, fastening ring 23, horizontal section 24, branch water pipe.

detailed description

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

As shown in FIG. 1, a washing machine includes a casing 1, a washing tub 2 for accommodating laundry, a power unit 3 for driving the washing tub 2 to rotate, a mounting plate 4 installed at a lower portion of the washing tub 2, and a connection. The mounting plate 4 and the vibration damping member of the casing 1 are suspended in the casing 1 by the vibration damping member. 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.

As shown in FIG. 4, the bottom of the washing tub 2 is provided with a drain port, and the upper surface of the mounting plate 4 is provided with a ring-shaped water retaining ring 12, and the water retaining ring 12 is directed from the upper surface of the mounting plate 4 to the washing tub. The two directions are convex and extend to a certain height to form a cavity structure for accommodating the washing water. A flexible sealing structure is further disposed between the outer edge of the mounting plate 4 and the casing 1, and the flexible sealing structure forms a submerged ring shape. The tank 18 collects the wash water flowing down the inner wall of the tank 1. A main drain 16 is disposed on the mounting plate 4 and located inside the water retaining ring 12, and the drain port at the bottom of the washing tub 2 is in communication with the main drain port 16, and the bottom of the annular groove 18 is provided with a sub-drain port 17, The sub drain port 17 communicates with the outside of the washing machine.

Specifically, the main drain port 16 communicates with the outside of the washing machine through the washing machine drain pipe 6, and the sub drain port 17 is connected to the washing machine drain pipe 6 through the branch water pipe 24.

The top of the washing tub 2 is provided with a balance ring 7 , and the lower side of the balance ring 7 is provided with a water collecting ring 8 , and a drainage channel 5 is arranged inside the peripheral wall of the washing tub 2 , and the water collecting ring 8 is connected with the drainage channel 5 . A dewatering port is provided on the inner side of the water collecting ring 8 or toward the washing tub 2, and the drain passage 5 is vertically disposed, and the upper end thereof communicates with the water collecting ring 8, and the lower end communicates with the drain port at the bottom of the washing tub. The washing tub 2 has a certain taper. When the washing tub 2 rotates at a high speed, the washing water in the washing tub 2 will climb upward along the washing tub wall under the action of centrifugal force, and from the collecting ring 8 after rising to a certain height. The dewatering port enters the water collecting ring 8, and the washing water flows annularly in the water collecting ring 8. When the washing tub 2 rotates at a lower speed, the washing water flows downward along the drain passage 5 and is discharged from the drain port at the bottom of the washing tub.

As shown in FIG. 2 and FIG. 3, preferably, the water collecting ring 8 is provided with a water deflecting plate 13 for guiding the washing water into the drain passage 5, and the water retaining plate 13 is located above the water inlet of the drain channel 5, and Tilted at an angle to the horizontal. When the washing water flows annularly in the water collecting ring 8, it will collide with the water retaining plate 13, and the water retaining plate 13 is inclined downward toward the side of the water flow direction, so that the water flow hits the water retaining plate 13 and changes the flow direction. By flowing in the circumferential direction of the barrel, it becomes a downward flow along the wall of the barrel and enters the drainage channel 5. Since the water deflector 13 changes the flow direction of the water in the water collecting ring 8, the water in the water collecting ring 8 can flow into the drain passage 5 at the time of high-speed dehydration, and the amount of water in the water collecting ring 8 can be prevented from being excessive.

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 12, and in the washing stage, the valve plug 15 is in a closed state, and in the dehydrating phase, the valve plug 15 is in an 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 washing machine drain pipe 6 to the outside of the washing machine.

Specifically, the annular groove 18 is located outside the water retaining ring 12, and includes a first mounting structure extending from the edge of the mounting plate 4, and a second portion extending from the inner wall of the casing 1 opposite to the first mounting structure. a mounting structure, and a sealing ring 21 connecting the first mounting structure and the second mounting structure; the first mounting structure is disposed at a distance from the second mounting structure, the sealing ring 21 is an elastic structure, and the first mounting structure and the first The second mounting structure is hermetically connected, and the secondary drain port 17 is provided at the bottom of the seal ring 21.

The seal ring 21 has a bottom wall and two side walls, and at least two side walls have elasticity to be deformed when the mounting plate 4 moves up and down. The first mounting structure is a first annular flange 19 extending downwardly from an outer edge of the mounting plate 4, the second mounting structure including a horizontal section 23 and a horizontal section 23 horizontally extending from an inner wall of the casing 1. A second annular flange 20 that extends and extends downwardly. Preferably, the first mounting structure and the mounting plate 4 are integrally formed, and the second mounting structure and the box 1 may be integrally formed, or may be separately manufactured and installed on the inner wall of the box 1 and sealed at the joint. deal with.

Preferably, one side wall of the sealing ring 21 is press-fixed to the first annular flange 19 by a fastening ring 22, and the other side wall is press-fixed to the second by another fastening ring. On the annular flange 20.

Preferably, the height of the water retaining ring 12 is slightly higher than the bottom surface of the washing tub 2, and a large gap is reserved between the outer peripheral wall of the washing tub 2 to avoid collision when the washing tub 2 is rotated.

The lower end of the drain channel 5 is connected to a drain port at the bottom of the washing tub 2, the drain port is located below the washing machine pulsator, and the drain channel 5 extends to the drain port. The drain channel 5 includes a water channel housing 11 and a part of the washing tub wall. The side of the water channel casing 11 facing the washing tub wall is provided with a vertically penetrating groove, and the water channel casing 11 is fastened to the washing tub wall to form a water flow passage together with the washing tub wall. The water channel housing 11 is similar in structure to the water channel in the inner tub of the existing washing machine, except that the upper end of the water channel housing 11 extends to be connected to the water collecting ring 8, and the side of the water channel housing 11 facing the axis of the washing tub 2 does not have a water outlet.

A plurality of side-by-side grooves may be disposed on the water channel housing 11 to form a plurality of water flow passages.

Preferably, the water channel housing 11 is detachably mounted on the washing tub 2, the bottom of the water channel housing 11 is provided with a hook, and the barrel wall of the washing tub 2 is provided with a bayonet fitting with the hook The upper portion of the water channel housing 11 is provided with a screw hole and is fixedly connected to the washing tub 2 by screws. When the water channel housing 11 is installed, the hook can be positioned and supported on the bayonet first, and then the water tank housing 11 is fixed to the washing tub 2 by screws.

Preferably, the side of the water channel housing 11 facing the axis of the washing tub is provided with a protrusion or a line for rubbing contact with the laundry, and the surface of the water channel housing 11 facing the axis of the washing tub may be rubbed against the laundry during the washing process. The role.

In order to prevent the washing water from overflowing from the washing tub 2 during dehydration, the side of the water collecting ring 8 facing the axial center of the washing tub is a curved surface which gradually washes from the bottom to the bottom along the washing tub axis. The barrel 2 is bent in the center direction, so that the opening of the upper end of the washing tub 2 is gradually reduced, and the dewatering port of the water collecting ring 8 is disposed at the bottom starting end of the curved surface, and the arc of the water collecting ring 8 is formed when the washing water climbs up along the barrel wall. The surface acts to block the water flow from continuing to climb upward, and collects the water flow into the dewatering port of the water collecting ring 8.

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 upper surface of 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. The locking mechanism 14 The washing tub 2 can be locked to prevent the washing tub 2 from rotating. In the washing stage, the locking mechanism 14 locks the washing tub 2 from rotation, and during the dehydrating phase, the locking mechanism 14 is unlocked, so that the washing tub 2 can be rotated.

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 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 upward and enters the water collecting ring 8. In the water collecting ring 8, the water flow is affected by the water retaining plate 13, changing the flow direction, flowing downward into the drain channel 5, and flowing out along the drain channel 5 to the washing tub. 2, falling into the cavity structure surrounded by the water retaining ring 12, discharging the washing machine through the main drain 16 and the washing machine drain pipe 6, and the washing water partially splashing the washing tub 2 flows into the annular groove 18 along the inner wall of the casing 1. Inside, and discharged by the auxiliary drain port 17.

Further, the mounting plate 4 and the water retaining ring 12 are integrally designed to form a barrel structure.

The above is a preferred embodiment of the present invention, and it should be noted that various modifications and improvements can be made by those skilled in the art without departing from the principles of the present invention. The scope of protection. For example, the drainage channel may be disposed on the outer peripheral wall of the washing tub, and the change in the position does not affect the understanding of the technical solution of the present invention by those skilled in the art.

Claims

A washing machine includes a box body, a washing tub and a mounting plate disposed at a lower portion of the washing tub, wherein the mounting plate is connected to the box body through a vibration damping member, the washing tub is a water tub in the washing stage, and the washing board is opposite to the mounting board in the dehydrating stage. The rotation is characterized in that a flexible sealing structure is further disposed between the outer edge of the mounting plate and the casing, and the flexible sealing structure forms a submerged annular groove.
A washing machine according to claim 1, wherein the peripheral wall of the washing tub is provided with a drainage passage, and the drainage passage is drained from the top to the bottom.
A washing machine according to claim 2, wherein the upper end of the washing tub is provided with a water collecting ring, the inner side of the water collecting ring is provided with a dehydrating port, and the upper end of the drain channel is connected with the water collecting ring. The lower end is connected to the drain provided at the bottom of the washing tub.
A washing machine according to claim 3, wherein 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, and during the washing phase, the control valve plug is closed, during the draining and dewatering stages. , the control valve plug is open.
A washing machine according to claim 1, wherein a bottom of said annular groove is provided with a sub-drainage port which communicates with an exterior of the washing machine.
A washing machine according to any one of claims 1 to 6, wherein the annular groove comprises a first mounting structure extending from an edge of the mounting plate, and the inner wall surface of the casing is located at the first mounting structure. a second mounting structure of the outer circumference, and a sealing ring connecting the first mounting structure and the second mounting structure.
A washing machine according to claim 7, wherein the sealing ring is of an elastic structure and is sealingly connected to the first mounting structure and the second mounting structure, and the bottom of the sealing ring is provided with a secondary drain.
A washing machine according to claim 7, wherein said seal ring has a bottom wall and two side walls, at least two of which have elasticity, and said first mounting structure extends downward from an outer edge of the mounting plate A first annular flange is formed, the second mounting structure including a horizontal section extending horizontally from the inner wall of the tank and a second annular flange extending from the horizontal section and extending downward.
A washing machine according to claim 9, wherein one side wall of said seal ring is press-fixed to the first annular flange by a fastening ring, and the other side wall is fastened by another The ring is affixed to the second annular flange.
A washing machine according to claim 2, wherein a surface of the mounting plate is provided with a ring-shaped water retaining ring, and the water retaining ring extends upward from the upper surface of the mounting plate to form a washing water. The cavity structure, the water outlet of the drainage channel is located in the cavity structure, and the annular groove is located outside the water blocking ring.
A washing machine according to claim 11, wherein a main drain is provided on the mounting plate and inside the water retaining ring, and the main drain communicates with the outside of the washing machine through a washing machine drain pipe, and the bottom of the annular groove is provided Some auxiliary drains are connected to the washing machine drain through the branch water pipes.
A washing machine according to claim 2, wherein the drain passage comprises a water passage housing and a part of the washing tub wall, and the side of the water channel housing facing the washing tub wall is provided with a vertically penetrating groove, a water passage The casing is fastened to the wall of the washing tub and is surrounded by the wall of the washing tub to form a water flow passage.
A washing machine according to claim 3, wherein the water collecting ring is provided with a water deflecting plate for guiding the washing water into the drainage channel, the water blocking plate is located above the water inlet of the drainage channel, and is horizontally Tilted at a certain angle.
A washing machine according to claim 3, wherein the side of the water collecting ring facing the axis of the washing tub is a curved surface, and the curved surface gradually moves from the bottom to the washing tub along the axial direction of the washing tub. The center direction is curved, and the dewatering port of the water collecting ring is disposed at the bottom start end of the curved surface.
A washing machine according to claim 1, wherein the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub, and the locking mechanism cooperates with the washing tub during the washing stage to Limit the rotation of the washing tub.