WO2017107924A1

WO2017107924A1 - Water drainage control mechanism and washing machine

Info

Publication number: WO2017107924A1
Application number: PCT/CN2016/111351
Authority: WO
Inventors: 纪虎; 刘尊安; 宋秀顺; 周瑞元; 徐凯
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2015-12-22
Filing date: 2016-12-21
Publication date: 2017-06-29
Also published as: CN106906620B; JP2019502070A; CN106906620A

Abstract

A water drainage control mechanism and a washing machine. The drain control mechanism comprises: a valve plug (301) capable of plugging a water outlet, and a piston rod (302) driving the valve plug (301). The feature is that a valve plug support (304) is arranged between the valve plug (301) and the piston rod (302), one end of the valve plug support (304) being fixedly connected to the valve plug (301), and the other end being movably connected to the piston rod (302). When the end of the valve plug (301) is not in parallel with the bottom of an internal drum (100), the movable connection between the piston rod (302) and the valve plug support (304) can adjust angles so that the end of the valve plug (301) and the bottom of the internal drum (100) can fit together, ensuring no clearance between the valve plug (301) and the water outlet (101) for reliable sealing.

Description

Drainage control mechanism and washing machine

Technical field

The invention relates to the field of washing machines, in particular to a drainage control mechanism and a washing machine.

Background technique

The existing pulsator type washing machine has a water-permeable hole on the inner barrel, and the inner and outer barrels communicate with each other. The inner barrel is a washing tub, and the outer tub is a water tub, and the water filled between the inner tub and the outer side wall of the outer tub does not participate in washing. The water involved in the washing is only the part of the inner tub, which makes the water waste a lot. In addition, too much water between the inner and outer barrels also reduces the concentration of the detergent/washing powder in the washing liquid. At the same time, since the water flows frequently between the inner and outer barrels, after continuous use, the area between the inner and outer side walls of the outer tub becomes a space for dirt and dirt, and the scale and washing powder in the tap water are free. The cellulose of the objects, clothing, the organic matter of the human body, and the dust and bacteria brought in by the clothes are easily retained between the inner tub and the side wall of the outer tub. These molds are a large amount of dirt accumulated in the washing machine for a long time, and can not be effectively removed and propagated. If the dirt that cannot be seen by these users is not removed, the bacteria will adhere to the clothes after the next washing. Brought to the human body, causing cross-infection problems.

2()() 420107890.8 The patent relates to a fully automatic washing machine, which mainly comprises a box body, a washing and dewatering barrel, a water tank and a driving device. The water tank is installed outside the washing and dewatering barrel and fixedly connected with the box body, and the bottom surface of the inner wall of the water tank is A sealing device is arranged between the bottom surface of the outer wall of the washing and dewatering bucket, and a sealing cavity is formed in the sealing device; the outer side wall of the washing and dewatering bucket has no through hole, and the bottom is provided with a draining port communicating with the sealing cavity; the water tank is opened and drained The drain port is connected to the pipe, and the drain pipe is provided with a drain valve. The bucket is fixedly connected to the box by a boom. One end of the boom is connected to the inner wall of the upper end of the tank, and the other end is connected to the outer wall of the tub. However, for a long time of operation, because the sealing structure wears and wears for a long time, it is easy to cause wear and water leakage. If the water quality is poor, the sediment concentration is high, the service life will be greatly shortened, and the function should not be performed. It is also not suitable for use in a state where the washing capacity is large, and the reliability is poor.

In the existing research, there is also a washing machine with no water between the inner barrel and the outer barrel during washing. The upper part of the inner barrel is provided with a plurality of water holes near the edge, and the bottom of the inner barrel is provided with at least one inner barrel drain port, and the bottom of the outer barrel is sealed. a drainage control mechanism for blocking the drainage hole, the drainage control mechanism comprises at least a retractable valve plug, the valve plug moves upward to close the drainage hole, and the valve plug moves downward to open the drainage hole, but the drainage control mechanism for controlling the inner barrel drainage is different In the drainage control mechanism for controlling the drainage of the outer tub, the inner tub is stationary during washing, and is rotated when dehydrated, and the eccentricity of the laundry placed in the inner tub can be It can cause the inclination of the inner tub, causing a gap between the valve plug and the inner tub, which causes the plugging drain hole to fail.

The present invention has been made in view of this.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and to provide a drainage control mechanism and a washing machine.

In order to achieve the object, the present invention adopts the following technical solution: a drainage control mechanism, comprising: a valve plug capable of sealing a drain port, a piston rod driving a movement of the valve plug, and a valve plug between the valve plug and the piston rod The valve plug is fixedly coupled to one of the valve plug and the piston rod and is movably coupled to the other of the valve plug and the piston rod.

The valve plug is rotatably and movably connected to the piston rod.

Preferably, one end of the valve plug corresponding to the piston rod is a spherical protrusion, and one end of the piston rod corresponding to the valve plug is a spherical groove, and the spherical protrusion is disposed in the spherical groove to form a rotatable movable connection.

Or preferably, one end of the valve plug corresponding to the piston rod is a spherical groove, and one end of the piston rod corresponding to the valve plug is a spherical protrusion, and the spherical protrusion is disposed in the spherical groove to form a rotatable movable connection.

A center of the spherical protrusion is connected to a center of the spherical groove, and a grease is disposed between the spherical protrusion and the spherical groove.

The piston rod is connected to the driving motor, or the piston rod is hollow, and one end facing the valve plug is a closed end, and a first elastic member is disposed inside the piston rod, and one end of the first elastic member is connected with the closed end, and the other One end is connected to the drive motor.

The piston rod has a hollow structure, and one end of the piston plug is a closed end, and a first elastic member is disposed inside the piston rod, and one end of the first elastic member is connected to the closed end and connected to the valve plug through the closed end, and One end is connected to the drive motor.

The valve plug includes a bracket connected to the valve plug and a connecting portion connected to the piston rod, the pallet having a shape corresponding to the valve plug, an edge of the valve plug being larger than an edge of the pallet, The valve plug extends downward beyond the edge of the pallet to wrap around the outer periphery of the pallet, and the edge of the valve plug extends downward and then bends inwardly to extend over the bottom of the pallet.

The drain control mechanism is installed at the bottom of the outer tub of the washing machine, and the valve plug is connected with a bellows. One end of the bellows is connected with the valve plug, and the other end is connected with the bottom of the outer tub. Preferably, the valve plug and the bellows are integrally formed.

The top surface of the valve plug is an elastic material.

Preferably, the top surface of the valve plug is provided with at least one elastic rib larger than the drain opening.

a second elastic member is disposed outside the piston rod, and one end of the second elastic member is opposite to the valve plug and the other end is fixed.

Preferably, the drainage control mechanism further comprises a valve seat, a slide rail of the piston rod is disposed in a middle portion of the valve seat, a second elastic member is disposed outside the piston rod, and one end of the second elastic member is opposite to the valve plug tray, and the other end is opposite to the valve The seat is offset.

A washing machine comprising an inner tub and an outer tub, wherein an upper portion of the inner tub is provided with a plurality of water holes near the edge, a bottom of the inner tub is provided with at least one inner bucket drain, and the bottom of the outer tub is provided with claim 1 The drain control mechanism of any of the above 9 blocks the inner bucket drain.

After adopting the technical solution of the invention, the following beneficial effects are brought about: in the invention, a valve plug is arranged between the valve plug and the piston rod, and when the end of the valve plug is not parallel with the bottom of the inner barrel, the piston rod and the valve The movable connection between the plugs can adjust the angle so that the end of the plug fits with the bottom of the inner tub, ensuring that there is no gap between the plug and the drain, and the seal is reliable.

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

DRAWINGS

Figure 1: Structure diagram of the washing machine of the present invention

Figure 2: Structure diagram of the drainage control structure of the present invention

Among them: 100, inner barrel, 101, drain, 102, drain hole, 103, inner barrel bottom, 200, outer barrel, 300, drainage control mechanism, 301, valve plug, 302, piston rod, 303, bellows, 304, valve Seto, 305, spherical groove, 306, spherical protrusion, 307, grease, 308, first elastic member, 309, second elastic member, 312, valve seat, 313, drive motor, 314, rib.

detailed description

As shown in FIG. 1 , the washing machine of the present invention comprises an inner tub 100 and an outer tub 200. The inner tub body has no water leakage hole communicating with the outer tub, the inner tub bottom 103 is provided with a drain port 101, and the inner bucket body is provided with a circle of drain holes 102. When washing, the drainage control mechanism controls the drain port 101 to be closed, the water level is lower than the height of the drain hole 102, only water is contained in the inner tub 100, and there is no water between the inner tub 100 and the outer tub 200. After the washing is finished, the drainage control mechanism controls The drain port 101 is opened, and most of the water is drained from the drain port 101. When the water is dehydrated, the inner tub 100 rotates, and the water discharged from the clothes rises along the wall of the barrel by the centrifugal force, and is discharged through the drain hole 106 in the upper portion of the inner tub to the inner and outer barrels. Then, it is discharged through the drain port of the outer tub 200, so that the washing water is only stored in the inner tub 100 during washing, and there is no washing water between the inner and outer tubs, thereby saving water, and the area between the inner tub 100 and the side wall of the outer tub 200 is not It will accumulate dirt, clean the inner and outer barrels, and avoid the growth of bacteria. During the drainage and / or dehydration process, the drain 101 will open, and most of the water and sediment, particles and other deposits will be discharged from the lower drain 101. When the laundry in the water tub is rotated at high speed, including an upper row of the dehydration tub The water hole 102 is discharged into the outer tub, and is directly discharged from the water outlet and the drain pipe at the bottom of the outer tub to the outside of the washing machine, thereby realizing rapid drainage and good drainage and sewage discharge effect.

The present invention is provided at the bottom of the drain port 101 with a drain control mechanism 300 for controlling the opening/closing of the drain port 101. The drain control mechanism 300 is mounted on the outer tub, and the drain port 101 is on the inner tub. When the drain port 101 needs to be sealed, the inner tub is controlled to rotate to the drain. The mouth 101 faces the position of the drainage control mechanism 300, controls the drainage control mechanism 300 to operate, and blocks the drain port 101. When the drain port 101 needs to be opened, the drain control mechanism 300 is controlled to open the drain port 101, and the inner tub can be rotated. The water draining and draining control mechanism 300 seals the drain port 101, controls the drain port 101 to be closed, and the drain control mechanism 300 controls the drain port 101 to open when draining or dehydrating.

As shown in FIG. 2, the drain control mechanism 300 includes a valve plug 301 capable of sealing the drain port, and a piston rod 302 that drives the movement of the valve plug 301. The drain control mechanism 300 is mounted on the outer tub 200, and the drain port 101 is When the inner tub 100 needs to seal the drain port 101, the inner tub is controlled to rotate to the position of the drain port 101 facing the drain control mechanism 300, and the control piston rod 302 drives the valve plug 301 to move closer to the drain port 101 until the drain port 101 is closed. When the drain port 101 is opened, the control piston rod 302 drives the valve plug 301 to move away from the drain port 101 until the drain port 101 is opened, the inner tub 100 can be rotated, and the valve plug holder 304 is disposed between the valve plug 301 and the piston rod 302. One end of the valve plug 304 is fixedly coupled to the valve plug 301 and the other end is movably coupled to the piston rod 302. Alternatively, one end of the valve plug 304 is movably coupled to the valve plug 301 and the other end is fixedly coupled to the piston rod 302. Sometimes, the eccentricity of the laundry placed in the inner tub 100 causes the inner tub 100 to be inclined, the inner tub bottom 103 is not flat, and the piston rod 302 drives the valve plug 301 to move to the drain port 101. If the end of the valve plug 301 is not parallel with the inner tub bottom, There is a gap between the inner tub bottom 103 or the drain port 101 and the valve plug 301, resulting in water leakage, and in the present invention, a valve plug bracket 304 is provided between the valve plug 301 and the piston rod 302, when the end of the valve plug 301 and the inner tub bottom When not parallel, the movable connection between the piston rod 302 and the valve plug holder 304 can adjust the angle so that the end of the valve plug 301 fits the bottom of the inner tub 100, ensuring that there is no gap between the valve plug 301 and the drain port 101, and the seal is sealed. reliable.

The valve plug 304 is rotatably and movably coupled to the piston rod 302 to ensure that the valve plug 301 can block the drain port 101 in parallel with the inner tub bottom regardless of the direction in which the bottom of the inner tub is inclined.

In one embodiment of the present invention, one end of the valve plug holder 304 corresponding to the piston rod 302 is a spherical protrusion 306, and one end of the piston rod 302 corresponding to the valve plug holder 304 is a spherical groove 305, and the spherical surface is convex. The 306 is arranged to form a rotatable movable connection in the spherical groove 305, and the spherical protrusion 306 and the spherical groove 305 are rotated universally to ensure that the valve plug 302 can block the drainage parallel to the inner barrel bottom 103 regardless of the direction in which the inner barrel bottom is inclined. Mouth 101.

In still another embodiment of the present invention, the valve plug holder 304 may be selected to have a spherical recess corresponding to one end of the piston rod 302. In the slot 305, one end of the piston rod 302 corresponding to the valve plug holder 304 is a spherical protrusion 306, and the spherical protrusion 306 is disposed in the spherical recess 305 to form a rotatable movable connection. The spherical projection 306 and the spherical recess 305 are rotated universally to ensure that the valve plug 301 can block the drain 101 in parallel with the inner tub bottom 103 regardless of which direction the inner tub bottom is inclined.

The center of the spherical protrusion 306 is connected to the center of the spherical groove 305. When the piston rod 302 pulls down the valve plug 301, the valve plug 304 is pulled downward by the piston rod 302, and the valve plug 304 pulls the valve plug 301 downward. When the second elastic member 309 is lifted up to the valve plug 301, the valve plug 301 pushes the valve plug 304 upward, and the valve plug 304 drives the piston rod 302 upward.

Grease 307 is disposed between the spherical protrusion 306 and the spherical groove 305 to ensure smooth articulation between the spherical protrusion 306 and the spherical groove 307, and the valve plug 301 is tightly fitted around the inner barrel bottom 103 or the drainage opening 101.

The piston rod 302 is coupled to a drive motor 313 that drives the reciprocating motion of the piston rod 302.

Or the piston rod 302 is a hollow structure, and one end of the piston plug 304 is a closed end, and a first elastic member 308 is disposed inside the piston rod 304. One end of the first elastic member 308 is connected to the closed end, and the other end is connected to the driving motor. 313 is connected, the driving motor 313 drives the first elastic member 308, and the first elastic member 308 drives the piston rod 302 to reciprocate to prevent the driving motor 313 from directly connecting with the rigid piston rod 302 to impact the driving motor 313. The first elastic member 308 Can be a spring.

The piston rod 302 has a hollow structure, and one end of the piston plug 304 is a closed end. The piston rod 302 is internally provided with a first elastic member 308. One end of the first elastic member 308 is connected to the closed end and passes through the closed end and the valve plug. The other end is coupled to the drive motor 313, and the piston rod 302 and the valve plug holder 304 are joined together by the end of the first elastic member 308 extending beyond the closed end.

The valve plug holder 304 includes a bracket connected to the valve plug 301 and a connection portion connected to the piston rod 302, the pallet having a shape corresponding to the valve plug 301, the edge of the valve plug 301 being larger than the edge of the pallet The valve plug 301 extends downwardly beyond the edge of the pallet to wrap around the outer circumference of the pallet. The edge of the valve plug 301 extends downward and then bends inwardly to extend and wrap the bottom of the pallet. The valve plug can push the valve plug 301 upwards or pull the valve plug 301 downward.

The drain control mechanism 300 is installed at the bottom of the outer tub of the washing machine, and the valve plug 301 is connected to a bellows 303. One end of the bellows 303 is connected to the valve plug 301, and the other end is connected to the bottom of the outer tub, preferably the valve plug 301 and the corrugated The tube 303 is integrally formed, and the bellows 303 has a certain degree of flexibility, so that the piston rod 302 can always keep the outer barrel sealed when it has a certain range of reciprocating motion.

The top surface of the valve plug 301 is an elastic material, the valve plug 301 is engaged with the drain port 101 or the valve plug 301 is fitted to the inner tub bottom 103 around the drain port to achieve sealing, and the valve plug 301 is fitted to the inner tub bottom 103 around the drain port 101. Time The top surface of the valve plug 301 is provided with at least one elastic rib 314 larger than the drain port, and the rib 314 is compressed in contact with the inner tub bottom 103 around the drain port to achieve sealing.

A second elastic member 309 is disposed outside the piston rod 302. One end of the second elastic member 309 is opposite to the valve plug holder 304, and the other end is fixed. The second elastic member 309 can provide a certain driving force when the valve plug 301 moves upward. The drain control mechanism 300 further includes a valve seat 312, which is a mounting seat of the drain control structure 300, is mounted on the outer side of the bottom of the outer tub 200, and a slide rail of the piston rod 302 is disposed in the middle of the valve seat 312. A second elastic member 309 is disposed outside the piston rod 302. One end of the second elastic member 309 abuts the valve plug holder 304, and the other end abuts the valve seat 312. When the valve plug 301 moves downward, the second elastic member 309 is compressed. When the valve plug 301 moves upward, the second elastic member 309 recovers, and the second elastic member 309 can provide a certain driving force when the valve plug 301 moves upward. The second elastic member 309 may be a spring.

The above is only 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 of the invention.

Claims

A drainage control mechanism includes: a valve plug capable of sealing a drain port; and a piston rod driving the movement of the valve plug, wherein: a valve plug holder is disposed between the valve plug and the piston rod, and the valve plug and the valve are arranged One of the plug and the piston rod is fixedly coupled to the other of the valve plug and the piston rod.
A drainage control mechanism according to claim 1, wherein said valve plug is rotatably and movably connected to the piston rod.

Preferably, one end of the valve plug corresponding to the piston rod is a spherical protrusion, and one end of the piston rod corresponding to the valve plug is a spherical groove, and the spherical protrusion is disposed in the spherical groove to form a rotatable movable connection.

Or preferably, one end of the valve plug corresponding to the piston rod is a spherical groove, and one end of the piston rod corresponding to the valve plug is a spherical protrusion, and the spherical protrusion is disposed in the spherical groove to form a rotatable movable connection.
A drainage control mechanism according to claim 2, wherein a center of said spherical projection is connected to a center of said spherical groove, and a grease is disposed between said spherical projection and said spherical recess .
A drainage control mechanism according to any one of claims 1-3, characterized in that the piston rod is connected to the drive motor, or the piston rod is hollow, and the end facing the valve plug is a closed end, the piston A first elastic member is disposed inside the rod, and one end of the first elastic member is connected to the closed end, and the other end is connected to the driving motor.
A drainage control mechanism according to claim 4, wherein the piston rod has a hollow structure, one end facing the valve plug is a closed end, and a first elastic member is disposed inside the piston rod, the first elastic member One end is connected to the closed end and connected to the valve plug through the closed end, and the other end is connected to the drive motor.
A drain control mechanism according to any one of claims 1 to 5, wherein said valve plug includes a bracket connected to the valve plug and a connecting portion connected to the piston rod, the pallet having a valve Correspondingly shaped, the edge of the valve plug is larger than the edge of the pallet, the valve plug extends downward beyond the edge of the pallet to wrap the outer circumference of the pallet, and the edge of the valve plug extends downward and inward After bending, it extends to wrap the bottom of the pallet.
The drainage control mechanism according to any one of claims 1 to 6, wherein the drainage control mechanism is installed at the bottom of the outer tub of the washing machine, and the valve plug is connected with a bellows, and one end of the bellows is connected with the valve plug. The other end is connected to the bottom of the tub, preferably the valve plug and the bellows are integrally formed.
A drainage control mechanism according to claim 7, wherein the top surface of the valve plug is an elastic material.

Preferably, the top surface of the valve plug is provided with at least one elastic rib larger than the drain opening.
A drainage control mechanism according to claim 1, wherein a second elastic member is disposed outside the piston rod, and one end of the second elastic member is opposite to the valve plug and the other end is fixed.

Preferably, the drainage control mechanism further comprises a valve seat, a slide rail of the piston rod is disposed in a middle portion of the valve seat, a second elastic member is disposed outside the piston rod, and one end of the second elastic member is opposite to the valve plug tray, and the other end is opposite to the valve The seat is offset.
A washing machine comprising an inner tub and an outer tub, wherein an upper portion of the inner tub is provided with a plurality of water holes near the edge, and a bottom of the inner tub is provided with at least one inner tub drain, wherein the bottom of the tub is provided The drain control mechanism according to any one of claims 1-9, which blocks the inner tub drain.