CN109868615B

CN109868615B - Washing machine

Info

Publication number: CN109868615B
Application number: CN201711250247.9A
Authority: CN
Inventors: 郝兴慧; 劳春峰; 许升; 吕艳芬; 吴迪
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2017-12-01
Filing date: 2017-12-01
Publication date: 2022-07-12
Anticipated expiration: 2037-12-01
Also published as: CN109868615A

Abstract

The invention discloses a washing machine, which comprises a washing barrel, wherein the washing barrel is a closed inner barrel provided with a hole for discharging washing water; the centrifugal valve is arranged on the outer wall surface of the opening of the washing barrel, the centrifugal valve seals the opening from the outer side to the inner side of the washing barrel in the normal washing process of the washing machine, and the centrifugal valve opens the opening under the action of centrifugal force when the washing barrel is rotated at high speed by the washing machine. The washing barrel is a hole-free inner barrel, the barrel is provided with a hole for discharging washing water, and a centrifugal valve arranged outside the hole can ensure that the barrel does not leak water in the washing process and can realize the functions of dewatering and draining under high-speed rotation. In addition, the annular water retaining structure arranged on the bottom mounting plate preferably adopts an outward inclined structure, so that friction between the water retaining structure and the lower part of the washing barrel can be prevented, and the water containing capacity of the lower part can be increased.

Description

Washing machine

Technical Field

The invention belongs to the technical field of washing devices, and particularly relates to a washing machine with a hole-free inner barrel.

Background

A washing machine in the prior art generally includes a washing tub and an outer tub, wherein the washing tub is installed in the outer tub, the outer tub is used for containing washing water, and clothes are placed in the washing tub; the washing tub is internally provided with a washing structure such as a pulsator, and the washing tub and/or the pulsator are/is rotated by a motor to generate washing water flow to wash the laundry. In the washing process, the washing tub is connected with the outer tub through the dewatering holes arranged on the washing tub, so that the washing tub and the outer tub are filled with water, and therefore, the conventional washing machine in the prior art has the following three problems: firstly, water is wasted, and only water in a washing barrel is needed in actual work; secondly, bacteria are bred, water at the joint of the washing barrel and the outer barrel cannot be completely discharged and cannot be cleaned, and the bacteria breeding of the outer barrel and the pollution to clothes can be caused after the washing barrel and the outer barrel are used for a long time; thirdly, the capacity of the washing machine is greatly reduced due to the existence of the outer barrel, and for the conventional washing machine, the whole structure of the washing machine can only be enlarged due to the expansion, so that the living space of a user is excessively occupied, and the washing machine is extremely unfriendly for small-sized users.

In order to overcome the above problems, the applicant proposes a washing machine with a non-porous inner tub, in which the washing tub is provided as a closed container without dewatering holes, so that the washing water is contained in the washing tub, and the washing tub has dual functions of water containing and rotary washing at the same time, thereby preventing the problem that the washing water flows between the inner and outer tubs and causes uncleanness and pollution to the cavity between the inner and outer tubs.

The present invention has been made in view of this point.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a washing machine to achieve the purpose of increasing the washing capacity of the washing machine; the second purpose of the invention is to provide a drainage device of a non-porous inner barrel washing machine, which realizes the purpose of smooth drainage in the high-speed dehydration process of the non-porous washing barrel.

In order to solve the technical problems, the invention adopts the technical scheme that:

a washing machine comprises a washing barrel, wherein the washing barrel is a closed inner barrel provided with an opening for discharging washing water; the centrifugal valve is arranged on the outer wall surface of the opening of the washing barrel, the centrifugal valve seals the opening from the outer side to the inner side of the washing barrel in the normal washing process of the washing machine, and the centrifugal valve opens the opening under the action of centrifugal force when the washing barrel is rotated at high speed by the washing machine.

The centrifugal valve is fixed on the outer surface of the washing barrel, and the centrifugal valve and the washing barrel rotate together in the rotating process.

The centrifugal valve comprises an elastic sealing element which is correspondingly plugged at the position of the open hole from outside to inside, the outer end of the elastic sealing element is connected with a fixing element through a spring, and the fixing element is fixedly connected with the washing barrel so as to enable the elastic sealing element to correspondingly plug the open hole under the action of the spring; the elastic sealing element is provided with a balancing weight, so that the balancing weight drives the elastic sealing element to overcome the action force of a spring and move outwards under the action of centrifugal force when the washing barrel rotates at high speed, and the hole is opened.

The washing barrel is provided with a plurality of openings, and each opening is provided with a corresponding centrifugal valve; preferably, the openings are arranged at the same height of the washing tub, and the openings are arranged at equal intervals relative to the axis of the washing tub.

The wall of the washing barrel is inclined; preferably, the diameter of the wall of the washing barrel is gradually increased outwards from the upper end to the lower end towards the opening, so that water flow in the washing barrel is guided to converge and flow towards the opening under the action of centrifugal force.

The opening is arranged at the horizontal cross section of the position with the largest diameter of the washing barrel.

A water container fixed with the washing machine shell is arranged below the washing barrel so as to lead the drainage water flowing out from the opening in the washing barrel to flow into the water container; the bottom of the water container is provided with a water outlet which is communicated with a water discharging structure of the washing machine;

preferably, the lower part of the washing barrel is provided with a mounting plate covering the bottom of the inner barrel, and the periphery of the mounting plate is provided with a flanging bent upwards, so that the mounting plate and the flanging surround to form a water container with an open top.

A water outlet pipeline extending outwards is arranged at a water outlet hole of the washing barrel, the extending end part of the water outlet pipeline extends downwards and vertically, the vertically extending end of the water outlet pipeline is correspondingly arranged above the opening of the water container, and the lower end of the water outlet pipeline is lower than the height of the end part of the flanging;

preferably, the upper end of the water outlet pipe is a mounting part extending along the axial direction of the opening hole, and the centrifugal valve is mounted in the mounting part of the water outlet pipe.

The mounting plate is provided with a water retaining structure for blocking the direction of water flow flowing out from the opening, and the water retaining structure is an annular structure sleeved on the inner barrel wall corresponding to the opening and sleeved correspondingly; preferably, the annular water retaining structure is a conical structure which is gradually inclined outwards from bottom to top.

The mounting plate is provided with a locking mechanism which is arranged in a telescopic manner; when the locking mechanism is popped up, the locking mechanism is correspondingly inserted into a positioning hole on the washing barrel, so that the washing barrel is locked with the mounting plate;

preferably, be equipped with the valve plug on the mounting panel, the valve plug pops up when washing and blocks up the main drain mouth on the washing barrel, prevents that the wash water from flowing out.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

This dilatation structural scheme is simple, and maneuverability is strong, has eliminated the water and electricity potential safety hazard.

The washing barrel is a hole-free washing barrel, a hole for draining and discharging washing water is arranged on the barrel, and the centrifugal valve arranged outside the hole can ensure that the barrel does not leak water in the washing process and can realize the functions of dewatering and draining under high-speed rotation.

The annular water retaining structure arranged on the bottom mounting plate preferably adopts an outward-inclined structure, so that friction between the water retaining structure and the lower part of the washing barrel can be prevented, and the water containing capacity of the lower part can be increased.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a washing machine according to an embodiment of the present invention;

FIG. 2 is an enlarged, fragmentary, schematic view at A of FIG. 1 of the present invention;

FIG. 3 is a schematic view showing the construction of a washing machine according to another embodiment of the present invention;

FIG. 4 is an enlarged partial schematic view of the invention at B in FIG. 3;

reference numbers in the drawings illustrate: 1. water course, 2, washing barrel, 3, manger plate ring, 4, locking structure, 5, mounting panel, 6, motor, 7, valve plug, 8, drain pipe, 9, upper support, 10, box, 11, jib, 12, balancing ring, 13, balancing weight, 14, spring, 15, outlet conduit, 16, washing barrel wall, 17, elastic sealing element, 18, trompil, 19, horizontal extension section, 20, vertical extension section, 21, bracing piece, 22, lever, 23, safety cover, 24, clearance, 25, centrifugal valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 1 to 2, the present embodiment describes a washing machine including a cabinet 10, a washing tub 2 disposed in the cabinet 10, and a motor 6 for driving the washing tub 2 to rotate, and a waterway 1 for guiding tub bottom washing water to an upper portion and a balance ring 12 for maintaining dynamic balance of the washing machine are provided above the washing tub 2. In the embodiment of the invention, the washing barrel 2 is a hole-free inner barrel which is a closed container after a cover plate of the washing machine is closed, and the washing barrel integrates double functions of containing washing water, being driven to rotate by an electric motor and washing clothes by using the washing water, so that the washing machine does not need to be additionally provided with an outer barrel, and can realize the washing effect of the clothes by using the washing barrel 2.

In this embodiment, the washing machine further comprises a bottom mounting plate 5 and a damping component hanger rod 11, wherein the mounting plate 5 is arranged at the lower part of the bottom of the washing tub 2, the motor 6 is fixed on the mounting plate 5, the upper end of the hanger rod 11 is suspended on a mounting seat of the box body 10, and the lower end of the hanger rod 11 penetrates through the upper support 9 and is connected with a hanger rod seat on the mounting plate 5, so that the mounting plate 5 is hung in the washing machine box body 10.

In this embodiment, the washing tub 2 is a pulsator washing machine with an axis vertically arranged, a pulsator, a stirring column and other stirring components for stirring the rotation of the washing water flow are further arranged in the washing tub 2, and the stirring components are connected with the motor 6 through a transmission device, so as to drive the stirring components and/or the washing tub 2 to rotate under the driving of the motor 6, so as to drive the water flow in the washing tub to wash the laundry or drive the laundry to rotate at a high speed for dehydration treatment.

In this embodiment, the washing tub 2 is a non-porous inner tub, the tub wall of the washing tub 2 is inclined, and the horizontal cross section of the largest diameter portion of the washing tub 2 is provided with an opening 18, so that when the washing machine rotates at a high speed, the washing water in the washing tub 2 flows along the tub wall and flows to the opening 18 with the largest diameter of the tub diameter under the action of centrifugal force, thereby achieving the purpose that the water in the washing tub 2 flows toward the opening 18 to be gathered and flowed.

In this embodiment, a centrifugal valve is disposed at the opening 18 of the washing tub 2, the centrifugal valve is mounted on the outer wall surface of the opening 18 of the washing tub 2, the centrifugal valve seals the opening 18 from the outside to the inside in the normal washing process of the washing machine, and the centrifugal valve opens the opening 18 under the centrifugal force when the washing tub 2 is rotated at a high speed by the washing machine, so that the water converged at the opening 18 flows out of the washing tub 2 from the opened opening when the washing tub 2 is rotated at a high speed, and the effect of automatic drainage of the non-porous washing machine is achieved.

In this embodiment, an outwardly extending outlet pipe passage 15 is installed at the opening 18, the extending portion of the outlet pipe passage 15 extends downward, and the vertically extending end 20 is correspondingly disposed above the mounting plate 5, so that during the high-speed spin-drying process of the washing machine, the washing water flows out from the opening 18 under the action of centrifugal force and is discharged through the outlet pipe passage 15.

In this embodiment, an outer tub is not disposed between the washing tub 2 and the cabinet 10, but the bottom of the washing tub 2 is provided with the mounting plate 5, and the outer periphery of the mounting plate 5 is provided with the water retaining ring 3 which is folded outwards, so that the mounting plate 5 forms a water container to collect the washing water discharged from the washing tub 2, and the washing water in the water container is discharged out of the cabinet 10 through the drain pipe 8 on the mounting plate 5, thereby reducing the space occupied by the outer tub. Preferably, the upper end of the water retaining ring 3 is lower than the lower end of the water outlet pipeline 15, so that the discharged water flows into the water container under the blocking action of the water retaining ring 3, flows to the water outlet pipe 8 along with the bottom of the mounting plate 5 and is discharged out of the washing machine. Further preferably, in order to improve the smoothness of the drainage, the upper surface of the mounting plate 5 is provided with a tapered surface inclined from the outer periphery toward the drainage pipe 8 so as to guide the drainage in the water containing chamber to flow toward the drainage pipe.

In addition, in this embodiment, the mounting plate 5 is provided with the locking mechanism 4 and the valve plug 7, in the normal washing process of the washing machine, the locking mechanism 4 is popped out and is correspondingly plugged with the positioning hole on the washing barrel 2, so that the washing barrel 2 is locked with the mounting plate, and the valve plug 7 is popped out to block the main water outlet on the washing barrel 2, thereby preventing the washing water from flowing out.

Preferably, the washing machine described in this embodiment is a pulsator washing machine, a washing tub of the pulsator washing machine is vertically installed, a disc pulsator is installed at a bottom of the washing tub, the laundry is completely soaked in the washing water, the pulsator is driven to rotate by a motor, the washing water and the laundry are stirred, and the laundry is kneaded by means of regular forward rotation, reverse rotation or continuous rotation of the pulsator, so as to achieve the purpose of washing the laundry.

Example two

As shown in fig. 2, in the present embodiment, a centrifugal valve is described, which includes an elastic sealing member 17, a weight block 13, a spring 14 and a fixing member, wherein the elastic sealing member 17 is correspondingly sealed at an opening 18 from outside to inside, an outer end of the elastic sealing member 17 is connected to the fixing member through the spring 14, the fixing member is fixedly connected to a washing tub wall 16, and the weight block 13 is installed on the elastic sealing member 17.

In this embodiment, the fixing member is a water outlet pipe 15, the water outlet pipe 15 includes a horizontally extending section 19 and a vertically extending section 20, the left end of the horizontally extending section 19 is correspondingly communicated with the opening 18, the right end of the horizontally extending section is communicated with the upper end of the vertically extending section 20, and the lower end of the vertically extending section 20 is correspondingly arranged above the opening of the water container. The centrifugal valve is arranged in the horizontal extension section of the water outlet pipeline 15, and the elastic sealing element 17 is correspondingly arranged on the right side of the horizontal extension section 19 so as to correspondingly seal the opening 18 of the washing barrel 2; the balancing weight 13 is fixedly connected with the elastic sealing piece 17; the spring 14 extends along the axis of the horizontal extension section 19, one end of the spring 14 is fixedly connected with the inner wall of the corner of the drain pipeline 15, and the other end of the spring 14 is fixedly connected with the elastic sealing member 17 or the weight member 13, so that the compressed spring 14 exerts an elastic force on the elastic sealing member 17 to correspondingly seal the opening 18.

In the normal washing process of the washing machine, the elastic sealing member 17 correspondingly seals the open hole 18 from outside to inside under the action of the spring 14, so that the washing water in the washing tub 2 is ensured not to flow out.

In the process of high-speed rotation dehydration of the washing machine, the centrifugal valve rotates at high speed along with the washing barrel 2, the balancing weight 13 in the centrifugal valve generates centrifugal force in a high-speed rotation state, the spring 14 is compressed and shortened by the balancing weight 13 under the action of the centrifugal force, a gap is generated between the elastic sealing element 17 and the outer surface of the washing barrel 2 at the moment, as the washing water also rotates at high speed along with the washing barrel 2, the washing water moves along the inner wall of the washing barrel 2 under the action of the centrifugal force, when a gap is generated between the elastic sealing element 17 and the outer wall of the washing barrel 2, the washing water flows out of the opening 18, flows into the water container along the direction of the water outlet pipeline 15, and is finally discharged out of the box body 10 from the water outlet pipe 8 at the bottom of the water container.

In this embodiment, be equipped with a plurality of trompils 18 on the washing barrel 2, corresponding centrifugal valve 25 is installed respectively to each trompil 18 punishment, through setting up a plurality of trompils 18, has increased the exhaust velocity of rivers when the dehydration, has improved washing barrel 2's dehydration performance, has avoided causing the inefficacy of dehydration performance under the trompil 18 jam condition.

Preferably, each opening and the centrifugal valve are arranged at the same height position with the washing barrel, water flow is uniformly distributed along the wall 16 of the washing barrel under the action of centrifugal force in the high-speed rotating and dewatering process of the washing machine, the plurality of openings 18 are arranged at equal intervals relative to the axis of the washing barrel 2, and the water flow can be ensured to flow into the water container through the water outlet pipeline 15 as soon as possible and finally discharged out of the washing machine.

EXAMPLE III

In this embodiment, the diameter of the wall of the washing tub 2 gradually increases from the upper end to the lower end toward the opening 18, the opening 18 is located on the horizontal cross section of the largest diameter of the washing tub 2, and in the high-speed spin-drying process of the washing machine, the water flow in the washing tub 2 is converged and flows toward the opening 18 under the action of centrifugal force, so that the washing water is more conveniently discharged, and the efficiency of clothes dehydration is improved.

Preferably, as shown in fig. 1, the wall of the washing tub 2 is a tapered tub with a diameter gradually increasing from top to bottom, and the opening 18 is disposed at the lowest portion of the wall of the washing tub 2, so that when the washing water in the washing tub 2 is converged and flows toward the opening under the action of centrifugal force, gravity provides a flow power to the washing water, and assists the washing water to flow toward the opening 18 of the washing tub 2, thereby improving the smoothness of the washing water during draining and reducing the amount of water remaining in the washing tub 2.

Example four

As shown in fig. 1, in the present embodiment, a water container fixed to the washing machine cabinet 10 is provided below the washing tub 2 to discharge the water flowing out of the opening 18 into the water container; the bottom of the water container is provided with a water outlet which is communicated with a drain pipe 8 of the washing machine. In this embodiment, the water container may be a container that is independent in the washing machine and has only a water containing function, or may be a container that realizes the water containing function for an existing component in the washing machine.

Preferably, in the embodiment, the lower part of the washing tub 2 is provided with a mounting plate 5 covering the bottom of the inner tub, and the periphery of the mounting plate 5 is provided with a water retaining ring 3 bent upwards, so that the mounting plate 5 and the water retaining ring 3 enclose a water container with an open top. The water retaining ring 3 and the mounting plate 5 can be arranged integrally or separately. The water retaining ring 3 is a conical structure with the outer periphery relatively higher than the inner periphery, the inner periphery of the water retaining ring 3 is correspondingly and hermetically connected with the outer periphery of the mounting plate 5, and the outer periphery of the water retaining ring 3 is higher than the lower end part of the water outlet pipeline 15, so that the drainage flowing out of the washing barrel 2 from the opening 18 is completely collected into the water container, and the splashing condition is avoided.

In this embodiment, in order to further avoid the occurrence of the splashing condition during the drainage, the lower end of the water outlet pipeline 15 extends to a position away from the mounting plate 5 by a small height difference, so that the height difference between the lower end of the water outlet pipeline 15 and the water storage tank is reduced as much as possible on the premise that the water storage tank in the water container is not in contact with the lower end of the water outlet pipeline and the backflow condition occurs, and the purpose of placing the drainage to splash outwards is achieved.

EXAMPLE five

As shown in fig. 3 and 4, in the embodiment of the present invention, a washing machine is described, which includes a cabinet 10, a washing tub 2 disposed in the cabinet 10, and a motor 6 for driving the washing tub 2 to rotate, and a waterway 1 for guiding washing water at the bottom of the washing tub to the upper portion and a balancing ring 12 for maintaining dynamic balance of the washing machine are provided above the washing tub 2. In the embodiment of the invention, the washing barrel 2 is a hole-free inner barrel which is a closed container after a cover plate of the washing machine is closed, and the washing barrel integrates double functions of containing washing water, being driven to rotate by an electric motor and washing clothes by using the washing water, so that the washing machine does not need to be additionally provided with an outer barrel, and can realize the washing effect of the clothes by using the washing barrel 2.

In the embodiment of the invention, the washing machine also comprises a bottom mounting plate 5 and a damping component hanger rod 11, wherein the mounting plate 5 is arranged at the lower part of the bottom of the washing barrel 2, the motor 6 is fixed on the mounting plate 5, the upper end of the hanger rod 11 is suspended on a mounting seat of the box body 10, and the lower end of the hanger rod passes through the upper support 9 and is connected with a hanger rod seat on the mounting plate 5, so that the mounting plate 5 is hung in the washing machine box body 10.

In the embodiment of the invention, the washing barrel 2 is a pulsator washing machine with a vertical axis, a pulsator, a stirring column and other stirring components for stirring and rotating washing water flow are arranged in the washing barrel 2, and the stirring components are connected with the motor 6 through a transmission device so as to drive the stirring components and/or the washing barrel 2 to rotate under the driving of the motor 6, so as to drive the water flow in the washing barrel to wash clothes or drive the clothes to rotate at a high speed for dehydration treatment.

In the embodiment of the invention, the washing barrel 2 is a non-porous inner barrel, the barrel wall of the washing barrel 2 is inclined, and the horizontal cross section of the largest diameter position of the washing barrel 2 is provided with the opening 18, so that when the washing machine rotates at high speed, washing water in the washing barrel 2 flows along the barrel wall and flows to the opening 18 with the largest diameter of the barrel under the action of centrifugal force, and the aim of converging and flowing the water in the washing barrel 2 to the opening 18 is fulfilled.

In the embodiment of the invention, the opening 18 of the washing barrel 2 is provided with the centrifugal valve 25, the centrifugal valve 25 is arranged on the inner wall surface of the opening 18 of the washing barrel 2, the centrifugal valve 25 blocks the opening 18 from the inner side of the washing barrel 2 to the outer side in the normal washing process of the washing machine, the centrifugal valve 25 opens the opening 18 under the action of centrifugal force when the washing machine rotates the washing barrel 2 at high speed, so that water flow converged to the opening 18 when the washing barrel 2 rotates at high speed flows out of the washing barrel 2 from the opened opening, and the effect of automatic drainage of the non-porous washing machine is achieved.

In the embodiment of the invention, the water outlet pipe path 15 extending outwards is arranged at the position of the opening 18, the extending part of the water outlet pipe path 15 extends downwards, the vertically extending end 20 is correspondingly arranged above the mounting plate 5, and in the high-speed spin-drying process of the washing machine, the washing water flows out from the opening 18 under the action of centrifugal force and is discharged through the water outlet pipe path 15.

In the embodiment of the invention, an outer barrel is not arranged between the washing barrel 2 and the box body 10, but the bottom of the washing barrel 2 is provided with the mounting plate 5, the periphery of the mounting plate 5 is provided with the water retaining ring 3 which is turned outwards, so that the mounting plate 5 forms a water container for collecting the washing water discharged from the washing barrel 2, and the washing water in the water container is discharged out of the box body 10 through the drain pipe 8 on the mounting plate 5, thereby reducing the space occupied by the outer barrel. Preferably, the upper end of the water retaining ring 3 is lower than the lower end of the water outlet pipeline 15, so that the discharged water flows into the water container under the blocking action of the water retaining ring 3, flows to the water outlet pipe 8 along with the bottom of the mounting plate 5 and is discharged out of the washing machine. Further preferably, in order to improve the smoothness of the drainage, the upper surface of the mounting plate 5 is provided with a tapered surface inclined from the outer periphery toward the drainage pipe 8 so as to guide the drainage in the water containing chamber to flow toward the drainage pipe.

In addition, in the embodiment of the invention, the mounting plate 5 is provided with the locking mechanism 4 and the valve plug 7, in the normal washing process of the washing machine, the locking mechanism 4 is popped out to be correspondingly inserted with the positioning hole on the washing barrel 2, so that the washing barrel 2 is locked with the mounting plate, and the valve plug 7 is popped out to block the main water outlet on the washing barrel 2, thereby preventing the washing water from flowing out.

Preferably, the washing machine described in the embodiment of the present invention is a pulsator washing machine, a washing tub of the pulsator washing machine is vertically installed, a disc pulsator is installed at a tub bottom, the laundry is completely soaked in the washing water, the pulsator is driven to rotate by a motor, the washing water and the laundry are agitated, and the laundry is rubbed by the regular forward and reverse rotation or continuous rotation of the pulsator, so as to achieve the purpose of washing the laundry.

EXAMPLE six

As shown in fig. 4, in the present embodiment, a centrifugal valve 25 is introduced, the centrifugal valve 3 includes a spring 14, a support rod 21, a weight block 13, an elastic sealing member 17 and a lever 22, the elastic sealing member 17 is correspondingly sealed at the opening 18 from the inner side to the outer side of the washing tub 2, the outer end of the elastic sealing member 17 is hinged to the lever 22, the middle position of the lever is hinged to the support rod 21 with one end fixed to the wall 16 of the washing tub, the weight block 13 is installed at the other end of the lever 22, and the weight block 13 is fixedly connected to the inner side of the wall 16 of the washing tub via the spring 14.

In this embodiment, a water outlet pipeline 15 is fixed on the outer side of the washing tub wall 16, the water outlet pipeline 15 includes a horizontally extending section 19 and a vertically extending section 20, the left end of the horizontally extending section 19 is correspondingly communicated with the opening 18, the right end of the horizontally extending section is communicated with the upper end of the vertically extending section 20, and the lower end of the vertically extending section 20 is correspondingly arranged above the opening of the water container.

In this embodiment, the inner side of the washing tub wall 16 is installed with a protective cover 23, and the centrifugal valve 25 is installed in the protective cover 23 to prevent the clothes from being damaged during the washing/dewatering process of the washing machine; a gap 24 is arranged between the periphery of the protective cover 23 and the wall 16 of the washing barrel, so that water flow flowing along the wall in the high-speed rotation dehydration process of the washing barrel 2 flows into the protective cover along the gap 24 of the protective cover 23 and then flows out from the opening 18; the spring 14 is fixed above the opening 18 and extends along the horizontal axis, the left end of the spring 14 is fixedly connected with the inner side of the washing barrel wall 16, and the right end is fixedly connected with the balancing weight 13; a supporting rod 21 is fixed at the lower position of the spring 14, one end of the supporting rod 21 is fixedly connected with the wall 16 of the washing barrel, the other end of the supporting rod 21 is hinged with a lever 22, the connecting position of the lever 22 and the supporting rod 21 is taken as a fulcrum, and the lever 22 rotates around the fulcrum to form a lever device; the lower end of the balancing weight 13 is hinged with the lever 22, the lever 22 drives the elastic sealing member 17 by utilizing the lever principle, the balancing weight 13 and the elastic sealing member 17 are respectively positioned at the left side and the right side of the fulcrum of the lever 22, the compressed spring 14 applies elasticity to the balancing weight 13, and the balancing weight 13 which receives the elasticity applies pressure to the elastic sealing member 17 at the left lower end through the lever 22 to correspondingly seal the opening 18.

In the normal washing process of the washing machine, the counterweight block 13 is positioned on one side far away from the opening 18 relative to the fulcrum of the lever 22, under the action of the elasticity of the spring 14 and the gravity of the counterweight block 13, the counterweight block 13 drives the lever 22 to move towards the clockwise direction, and the lever 22 applies pressure close to the direction of the opening 18 to the elastic sealing element 17, so that the elastic sealing element 17 correspondingly blocks the opening 18 from the inner side of the washing barrel 2 to the outer side, and the washing water in the washing barrel 2 is ensured not to flow out.

In the high-speed rotation dehydration process of the washing machine, the centrifugal valve 25 rotates at high speed along with the washing barrel 2, the counterweight 13 in the centrifugal valve 25 generates centrifugal force under the high-speed rotation state, the spring 25 is compressed and shortened by the counterweight block 13 under the action of the centrifugal force and moves towards the outer side of the washing barrel 2, at the moment, the counterweight block 13 overcomes the self gravity to drive the lever 22 to rotate anticlockwise, by utilizing the lever principle, the lever 22 pulls the elastic sealing element 17 to move towards the inner side of the washing barrel 2, at the moment, a gap is generated between the elastic sealing element 17 and the inner surface of the washing barrel 2, as the washing water also rotates at high speed along with the washing barrel 2, the washing water moves along the inner wall of the washing barrel 2 under the action of the centrifugal force, when the gap is generated between the elastic sealing element 17 and the inner wall of the washing barrel 2, the washing water flows out from the opening 18 along the gap 24 at the periphery of the protective cover 23 and flows into the water container along the direction of the water outlet pipeline 15, and finally exits the tank 10 through the drain pipe 8 at the bottom of the water container.

Meanwhile, in the high-speed rotating dehydration process of the washing machine, the balancing weight 13 moves to a position close to the wall of the washing barrel under the action of centrifugal force, the balancing weight 13 is positioned at one side close to the opening 18 relative to the fulcrum of the lever 22, under the action of the elasticity of the spring 14 and the gravity of the balancing weight 13, the balancing weight 13 drives the lever 22 to move towards the counterclockwise direction, at the moment, the lever 22 applies pressure to the elastic sealing element 17 in a direction away from the opening 18, so that the elastic sealing element 17 is reliably positioned at a position away from and opening the opening 18, and the elastic sealing element 17 is ensured not to be closed to cause the opening of the washing barrel 2 to be closed.

Preferably, each opening and the centrifugal valve are arranged at the same height position with the washing barrel, during the high-speed rotation dehydration process of the washing machine, water flow is uniformly distributed along the wall 16 of the washing barrel under the action of centrifugal force, and the plurality of openings 18 are arranged at equal intervals relative to the axis of the washing barrel 2, so that the water flow can be ensured to flow into the water container through the water outlet pipeline 15 as soon as possible and finally discharged out of the washing machine.

EXAMPLE seven

As shown in fig. 3, in this embodiment, the diameter of the wall of the washing tub 2 gradually increases from the upper end to the lower end toward the opening 18, and the opening 18 is located on the horizontal cross section of the largest diameter position of the washing tub 2, so that water in the washing tub 2 is converged and flows toward the opening 18 under the action of centrifugal force during the high-speed spin-drying process of the washing machine, thereby facilitating the discharge of the washing water and improving the efficiency of clothes-drying.

Preferably, as shown in fig. 3, the wall of the washing tub 2 is a tapered tub with a diameter gradually increasing from top to bottom, and the opening 18 is disposed at the lowest portion of the wall of the washing tub 2, so that when the washing water in the washing tub 2 is converged and flows toward the opening under the action of centrifugal force, gravity provides a flow power to the washing water, and assists the washing water to flow toward the opening 18 of the washing tub 2, thereby improving the smoothness of the washing water during draining and reducing the amount of water remaining in the washing tub 2.

Example eight

As shown in fig. 3, in the present embodiment, a water container fixed to the washing machine cabinet 10 is provided below the washing tub 2, so as to discharge the water flowing out of the opening 18 into the water container in the washing tub 2; the bottom of the water container is provided with a water outlet which is communicated with a drain pipe 8 of the washing machine. In this embodiment, the water container may be a container that is independent and has only a water containing function in the washing machine, or may realize the water containing function for an existing component in the washing machine.

In this embodiment, in order to further avoid the occurrence of the splashing condition during the drainage, the lower end of the water outlet pipeline 15 extends to a position away from the mounting plate 5 by a small height difference, so that the height difference between the water stored in the water container and the lower end of the water outlet pipeline 15 is reduced as much as possible on the premise that the water stored in the water container does not contact with the lower end of the water outlet pipeline and the backflow condition occurs, and the purpose of placing the drainage to splash outwards is achieved.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A washing machine, characterized by comprising:

the washing barrel is a closed inner barrel provided with an opening for discharging washing water;

a centrifugal valve installed on an outer wall surface of the opening of the washing tub;

the centrifugal valve seals the opening from the outer side to the inner side of the washing barrel in the normal washing process of the washing machine, and the centrifugal valve opens the opening under the action of centrifugal force when the washing machine rotates the washing barrel at high speed;

the centrifugal valve comprises an elastic sealing element which is correspondingly plugged at the position of the open hole from outside to inside, the outer end of the elastic sealing element is connected with a fixing element through a spring, and the fixing element is fixedly connected with the washing barrel so as to enable the elastic sealing element to correspondingly plug the open hole under the action of the spring; the elastic sealing piece is provided with a balancing weight, so that when the washing barrel rotates at a high speed, the balancing weight is driven by centrifugal force to drive the elastic sealing piece to overcome the action force of a spring to move outwards and open the opening;

the fixing piece is a water outlet pipeline which comprises a horizontal extension section and a vertical extension section, the left end of the horizontal extension section is correspondingly communicated with the opening, the right end of the horizontal extension section is communicated with the upper end of the vertical extension section, and the lower end of the vertical extension section is correspondingly arranged above the opening of the water container; the centrifugal valve is arranged in the horizontal extension section of the water outlet pipeline, and the elastic sealing element is correspondingly arranged on the right side of the horizontal extension section so as to correspondingly seal the opening of the washing barrel; the balancing weight is fixedly connected with the elastic sealing piece; the spring extends along the axis of the horizontal extension section, one end of the spring is fixedly connected with the inner wall of the corner of the drainage pipeline, and the other end of the spring is fixedly connected with the elastic sealing element or the counterweight element, so that the compressed spring applies elastic force to the elastic sealing element to correspondingly seal the opening.

2. A washing machine as claimed in claim 1, wherein the centrifugal valve is fixed to an outer surface of the washing tub, and the centrifugal valve is rotated together with the washing tub during rotation.

3. The washing machine as claimed in claim 1, wherein the washing tub is provided with a plurality of openings, and a corresponding centrifugal valve is installed at each of the openings.

4. A washing machine as claimed in claim 3 wherein the openings are provided at the same height of the washing tub and are arranged at equal intervals about the axis of the washing tub.

5. A washing machine as claimed in any one of claims 1 to 4 wherein the wall of the washing tub is tapered.

6. A washing machine as claimed in claim 5 wherein the walls of the washing tub are of progressively increasing diameter outwardly from the upper and lower ends towards the opening to direct the water flow within the washing tub to converge towards the opening under the influence of centrifugal force.

7. A washing machine as claimed in claim 6, wherein the opening is provided at a horizontal cross section where the diameter of the washing tub is largest.

8. A washing machine as claimed in any one of claims 1 to 4, wherein a water container is provided below the washing tub and fixed to the washing machine body to drain water flowing out of the opening in the washing tub into the water container; the bottom of the water container is provided with a water outlet which is communicated with a water discharge structure of the washing machine.

9. A washing machine as claimed in claim 8, wherein the lower part of the washing tub is provided with a mounting plate covering the bottom of the inner tub, and the periphery of the mounting plate is provided with a flange bent upward, so that the mounting plate and the flange define a water container with an open top.

10. The washing machine as claimed in claim 9, wherein the drain hole of the washing tub is provided with an outwardly extending water outlet pipe, the extending end of the water outlet pipe extends vertically downward, the vertically extending end of the water outlet pipe is correspondingly disposed above the opening of the water container, and the lower end of the water outlet pipe is lower than the end of the flange.

11. A washing machine as claimed in claim 10, wherein the upper end of the outlet conduit is a mounting portion extending in the direction of the axis of the opening, and the centrifugal valve is mounted in the mounting portion of the outlet conduit.

12. The washing machine as claimed in claim 9, wherein the mounting plate is provided with a water blocking structure for blocking the direction of water flowing out of the opening, and the water blocking structure is a ring-shaped structure sleeved on the corresponding inner tub wall of the opening.

13. The washing machine as claimed in claim 12, wherein the water guard structure has a tapered shape which is gradually inclined outward from a bottom to a top.

14. A washing machine as claimed in any one of claims 1 to 4, wherein the lower part of the washing tub is provided with a mounting plate covering the bottom of the inner tub, and the mounting plate is provided with a locking mechanism which is telescopically arranged; when the locking mechanism is popped up, the locking mechanism is correspondingly inserted into the positioning hole on the washing barrel, so that the washing barrel is locked with the mounting plate.

15. A washing machine as claimed in claim 14 wherein the mounting plate is provided with a valve plug which pops up to block a main drain port of the tub during washing to prevent the flow of wash water.