WO2019228432A1 - 排水密封阀、洗衣机旋转桶及洗衣机 - Google Patents

排水密封阀、洗衣机旋转桶及洗衣机 Download PDF

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Publication number
WO2019228432A1
WO2019228432A1 PCT/CN2019/089188 CN2019089188W WO2019228432A1 WO 2019228432 A1 WO2019228432 A1 WO 2019228432A1 CN 2019089188 W CN2019089188 W CN 2019089188W WO 2019228432 A1 WO2019228432 A1 WO 2019228432A1
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WIPO (PCT)
Prior art keywords
water
valve
valve plug
water outlet
drainage
Prior art date
Application number
PCT/CN2019/089188
Other languages
English (en)
French (fr)
Inventor
郝兴慧
吴迪
劳春峰
Original Assignee
青岛海尔洗衣机有限公司
青岛海尔智能技术研发有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810558768.9A external-priority patent/CN110552161A/zh
Priority claimed from CN201810558802.2A external-priority patent/CN110552170A/zh
Priority claimed from CN201810558640.2A external-priority patent/CN110552160A/zh
Application filed by 青岛海尔洗衣机有限公司, 青岛海尔智能技术研发有限公司 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2019228432A1 publication Critical patent/WO2019228432A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the invention belongs to the field of washing equipment, and particularly relates to a drain sealing valve, a rotating bucket of a washing machine and a washing machine.
  • the washing tub and the water tub communicate with each other.
  • the washing tub is a clothes storage area for washing clothes.
  • the washing tub is between the washing tub and the side wall of the tub.
  • the full part of water does not participate in washing.
  • the water that is actually involved in washing is part of the washing bucket, which causes a huge waste of water resources.
  • too much water between the washing bucket and the tub will also reduce the concentration of the detergent, affecting Washing effect.
  • the washing bucket is changed to be non-porous, that is, there is no dehydration hole on the peripheral wall of the washing bucket, and the washing water is completely stored in the washing bucket. .
  • dewatering open the drain at the bottom of the washing tub, and the sediment and thread debris are removed from the bottom with the flow of water. Water in clothes is discharged from the upper part of the peripheral wall of the washing tub.
  • a blocking mechanism for restricting the rotation of the washing tub and a drainage sealing structure for closing the drainage opening are proposed in the related art.
  • a locking hole is provided at the bottom of the washing tub, and a retractable locking lever and a locking mechanism are used. The holes cooperate with each other.
  • the lock lever When the lock lever is extended, the lock hole is concave-convex, and the washing tub is locked.
  • the lock lever is retracted, the locking hole is released, and the washing barrel is locked by contact.
  • the drainage sealing structure is not only complicated in structure, but also needs to restrict the rotation of the washing tub during the washing process, so that many washing methods that require the rotation and cooperation of the washing tub cannot be realized, and the washing efficiency is relatively reduced.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide a drainage sealing valve.
  • the drainage sealing valve has the advantages of simple structure, self-locking sealing, reliable sealing and the like.
  • Another object of the present invention is to provide a rotary tub of a washing machine having the drain sealing valve.
  • the invention also provides a washing machine having the rotary tub.
  • a drainage sealed valve includes a valve body and a valve plug, and a cavity forming a water path from a water inlet end to a water outlet end is defined in the valve body, and the valve plug is movably disposed in the cavity.
  • the cavity is also provided with a first force providing unit that provides a water force to the valve plug normally closed valve body.
  • the force provided to the valve plug normally closed valve body waterway is optimized, and the first force providing unit is provided between the water inlet end and the valve plug.
  • the first force providing unit provides a force of the valve plug in the direction of the water outlet end to seal the water path between the valve plug and the water outlet end;
  • the first acting force providing unit provides a force acting in the opposite direction of the normally closed valve body water passage acting force on the water inlet end.
  • valve plug in order to make the valve plug move more smoothly in the cavity to better open the water path in the valve body, the valve plug is limited to a linear movement setting in the cavity between the water inlet end and the water outlet end.
  • valve body cavity cooperates with the valve plug to form an outlet water path from the water inlet end to the water outlet end, which in turn includes a first water channel from the water inlet end to the valve plug, a second water channel between the outer periphery of the valve plug and the inner wall of the cavity.
  • third water path which can be opened and closed is formed between the end face of the valve plug near the water outlet end and the water outlet end.
  • a guide structure is defined between the valve plug and the valve body to limit the movement of the valve plug between the water inlet end and the water outlet end in a predetermined direction.
  • valve body is further provided with a blocking structure that limits the movement of the valve plug to a certain position.
  • valve body includes:
  • the first cover is provided with a water through hole to form the water inlet end
  • the second cover is connected to the first cover.
  • the two covers cooperate to form the cavity, and a water outlet is provided in a direction opposite to the water inlet end to form the water outlet end.
  • the first cover is provided with a plurality of water passage holes.
  • a filtering structure is provided on the outer periphery of the area where the water passage holes are located, such as a toothed stop.
  • Filtering channels formed by staggered ribs or stiffeners, and / or, a plurality of protrusions are provided on the outer side of the first cover, and the through holes are correspondingly provided at the protrusions.
  • the protrusions have a high center and a low periphery. The arc-shaped surface, the through hole penetrates the highest part of the center of the protrusion.
  • the second cover has a groove
  • the first cover is installed on the opening of the groove
  • the cavity is formed inside
  • a water outlet is provided at the bottom of the groove.
  • a gap is formed between the outer periphery of the valve plug and the side wall of the groove to form a second water path
  • the valve plug is controlled away from the bottom of the groove so that a third connecting the second water path and the water outlet is formed between the valve plug and the bottom of the groove waterway.
  • a guide structure for limiting the movement of the valve plug between the water inlet end and the water outlet end along a predetermined trajectory is provided on the side wall of the groove and the outer periphery of the valve plug;
  • the guide structure includes a guide groove and a guide protrusion located in the guide groove, which are respectively disposed on the side wall of the groove and the outer periphery of the valve plug.
  • the side wall of the groove near the water inlet end is provided with a blocking structure for restricting the valve plug to move to a certain position
  • the blocking structure is a groove structure provided on a side wall of the groove, or the groove is a groove structure with a stepped inner diameter, and the inner diameter of the groove near the water outlet end is larger than the inner diameter of the groove near the water inlet end.
  • the first force providing unit is an elastic support member in a compressed state, one end of which supports and connects the valve plug, provides elastic force for supporting the normally closed water outlet end of the valve plug, and the other end supports and connects the first cover.
  • the elastic support member is a compression spring, and the two ends of the elastic support member are limitedly supported on the first cover and the valve plug, respectively;
  • the compression spring has a circular table structure, and a diameter of one end supported on the first cover is smaller than a diameter of one end supported on the valve plug, which can reduce misalignment caused by the movement of the valve plug;
  • the first cover is provided with a positioning boss
  • the valve plug is provided with an annular limiting groove
  • one end of the compression spring is sleeved on the positioning boss, and the other end is arranged in the limiting groove.
  • valve plug has a force receiving part for receiving the normally closed valve body water path force provided by the first acting force providing unit and a sealing part for closing the valve body water path.
  • the force receiving part is connected to the sealing part, and the force receiving part is provided.
  • the sealing portion is arranged on the side close to the water inlet end;
  • the hardness of the force receiving portion is greater than the hardness of the sealing portion
  • the force receiving portion and the sealing portion are connected in abutment, or the force receiving portion and the sealing portion are integrally connected.
  • the sealing portion and the end face of the water outlet end are sealed to realize the normal closing of the third waterway.
  • the thickness of the sealing portion corresponding to the position of the water outlet at the water outlet end is greater than the thickness of other parts to extend into the water outlet.
  • the side of the valve plug corresponding to the water inlet has a middle height and gradually outwards.
  • this cone structure can also reduce the water storage in the cavity after drainage, avoid moisture breeding bacteria.
  • the rotating bucket of the washing machine according to the present invention has a rotatable tub structure.
  • a drain is provided at the lower part of the rotating bucket, and the drain sealing valve is installed on the drain.
  • the washing machine includes the rotating bucket and a water collecting tank installed outside the rotating bucket.
  • the water collecting tank is provided with a drainage opening assembly for controlling opening of the water path of the valve body of the drainage sealing valve.
  • the drainage opening assembly includes a second acting force providing unit that provides a force acting on the valve body to open the waterway of the valve body.
  • the second acting force providing unit provides the acting force of the valve plug to open the valve body water path in a direction from the water outlet end to the water inlet end.
  • the second force providing unit includes:
  • Jacking piece jacking the valve plug in the direction of the water inlet to open the valve body waterway;
  • the driving member drives the jacking member to jack up the valve plug.
  • the jacking member includes a jacking rod and a waterproof sleeve sleeved on the outside of the jacking rod.
  • the jacking rod is connected to the driving member, and the waterproof sleeve extends from the top of the jacking rod to at least surround the connection position of the jacking rod and the driving member.
  • the position of the water outlet of the jack from the water outlet end provides a supporting force for jacking the valve plug.
  • the drainage sealing valve closes the drainage port and is configured to rotate integrally with the rotating bucket; during the drainage and dehydration process, the drainage opening component is controlled to drive the valve plug to open the valve body waterway to open the drainage port.
  • a water flow agitator is provided in the rotating bucket, and the water flow agitator is configured to rotate independently of the rotating bucket during washing;
  • the water flow stirrer is configured to rotate in opposite directions to the rotating tub during the washing process.
  • the present invention has the following beneficial effects compared with the prior art.
  • the drainage sealing valve of the present invention has a normally closed self-locking valve structure, which has a simple and reliable structure, and can achieve its own waterway closure without external force. The greater the water pressure, the better the sealing effect.
  • the closed structure avoids the possibility of initial leakage and relatively saves water resources.
  • the drainage sealing valve of the invention has a delicate design, can prevent the influence of foreign objects on the waterway sealing, reduces the possibility of leakage due to inadequate sealing, and has the advantages of simple structure, reliable drainage and sealing performance, and the like.
  • the drainage sealing valve of the present invention is usually closed to seal the drainage port at the bottom of the rotating bucket of the washing machine. Since the drainage port is a normally closed structure, it does not affect the movement of the rotating bucket. During the washing process, the rotation of the rotating bucket can be used to enhance the washing water flow, which relatively improves Improved washing efficiency.
  • the drainage sealing valve used in the washing machine has the advantages of simple structure, reliable drainage and sealing performance, and the like.
  • FIG. 1 is a schematic view of a normally closed state of a drain sealing valve in a washing machine of the present invention
  • FIG. 2 is a schematic view of an open state of a drain sealing valve in a washing machine of the present invention
  • FIG. 3 is a schematic view of an assembly structure of a rotary tub and a drain sealing valve of a washing machine according to the present invention
  • FIG. 4 is an enlarged schematic view of part A in FIG. 3;
  • FIG. 5 is a schematic view of an opened state of the drain seal valve in FIG. 4.
  • a drain sealing valve is installed on a washing machine.
  • the washing machine includes a rotary tub 1 with a water holding function, and a drain port (not labeled) is provided at the bottom of the rotary tub 1.
  • a drain sealing valve 2 is installed corresponding to the drain port, and a rotating water tank 1 is provided with a water collecting tank for collecting washing water discharged from the drain port, such as an outer tub 3, or the water collecting tank is a supporting plate supported below the rotating tub.
  • the outer shell of the washing machine is hermetically connected to realize water collection; the outer tub 3 may adopt the outer tub of the existing washing machine or a bucket-shaped water collecting structure lower than the upper edge of the rotating tub.
  • the drain sealing valve 2 includes a valve body 4, a valve plug 5 provided in the valve body 4, and a first force providing unit 6 for providing a force of the valve plug 5 to a normally closed valve body waterway.
  • Drainage sealing valve 2 Drainage opening assembly of the valve body water channel.
  • the drainage opening assembly includes a second acting force providing unit 7 that provides the valve plug 5 with a force acting to open the valve body.
  • the second force providing unit 7 is provided on the outside of the valve body 4 to drive the valve plug 5 to open the water path of the valve body 4.
  • the valve body 4 is installed in the drain port of the rotary bucket 1.
  • the second force providing unit 7 is provided below the drain port. On the sump, such as the bottom of the outer tub 3 (see Figures 1 and 2).
  • the force provided by the second force providing unit 7 to the valve plug 5 is greater than the sum of the force provided by the first force providing unit 6 to the valve plug 5 and the pressure of the maximum water level of the inlet water of the washing machine to the valve plug.
  • the drain sealing valve 2 includes a valve body 4 and a valve plug 5.
  • the valve body 4 defines a water path from the water inlet 41 to the water outlet 42.
  • the force provided by the first force providing unit 6 to the normally closed valve body water path of the valve plug 5 is hereinafter referred to as the first force
  • the force provided by the second force providing unit 7 to the valve plug 5 to open the valve body water path is hereinafter Called the second force.
  • the directions of the first acting force and the second acting force are opposite, and correspond to the directions of the water inlet end 41 to the water outlet end 42 and their opposite directions, respectively.
  • the valve plug 5 moves linearly in the cavity 43 between the water inlet end 41 and the water outlet end 42. This structure enables the valve plug to move more smoothly in the cavity, has a higher utilization rate of force, and better opens and closes the water path in the valve body.
  • the first acting force providing unit 6 is disposed in the cavity 43 between the water inlet 41 and the valve plug 5; the first acting force providing unit 6 provides a reverse acting force of the first acting force of the valve plug 5 to the inlet. Water side 41.
  • the valve body cavity 43 cooperates with the valve plug 5 to form an outlet water path from the water inlet end 41 to the water outlet end 42, which in turn includes a first water channel from the water inlet end 41 to the valve plug 5, the outer periphery of the valve plug 5 and the inner wall of the cavity 43.
  • a second water path between the two and an end surface of the valve plug 5 on the side close to the water outlet end 42 and the water outlet end 42 constitute a third water channel that can be opened and closed (see FIG. 5).
  • the first water channel and the second water channel are passages, and the valve plug 5 is normally closed on the third water channel.
  • the first force always acts on the valve plug 5 so that the valve plug 5 is close to the water end 42 and closes the third water channel.
  • the valve plug 5 overcomes the first acting force and the pressure of the water, the valve plug 5 moves in the direction of the water inlet 41, and the third water channel is opened, and the water outlet water channel is completely communicated.
  • a guiding structure is defined between the valve plug 5 and the valve body 4 to limit the movement of the valve plug 5 between the water inlet end 41 and the water outlet end 42 in a predetermined direction.
  • valve body 4 is also provided with a blocking structure that limits the movement of the valve plug 5 to a certain position.
  • the drainage of the rotary bucket drain opening can be opened and closed.
  • the force provided to the valve plug 5 by the first acting force providing unit 6 and the second acting force providing unit 7 is used to achieve this.
  • the closing and opening of the water outlet channel of the drainage seal valve is simpler than the structure in which the valve plug is used to close the drainage opening in the related art.
  • the structure also simplifies the transmission path of the force, makes the transmission simpler, and reduces the accuracy of the fit. Requirements, which greatly improves the stability of motion conversion.
  • the first acting force providing unit 6 is used to provide the valve plug 5 with the first acting force for closing the outlet water channel.
  • the drain sealing valve for the rotary tub of the washing machine has the advantages of simple structure, stable transmission, reliable sealing, and the like.
  • the washing machine in order to enhance the precise positioning between the second force providing unit 7 and the valve plug 5 when draining, the washing machine further includes a positioning device for rotating the rotary tub 1 to a certain position, for example, restricting rotation Bucket-operated locking mechanism (not shown), which can be switched between a state that restricts the rotation of the rotating barrel and a state that allows the rotation of the rotating barrel.
  • the locking mechanism is installed in the outer barrel or locks the barrel. One part of the mechanism is installed in the rotating bucket, and the other part is installed in the outer bucket.
  • a drain sealing valve installed at the bottom of the rotary tub 1 closes the outlet water path, and the washing water is completely sealed in the rotary tub 1.
  • the rotating tub 1 can be controlled to rotate in at least one direction.
  • the rotating tub 1 and the pulsator 8 can be rotated in opposite directions to achieve a dual power washing effect.
  • the rotating tub 1 can also be left uncontrolled to make the rotating tub 1 free. Due to the tumbling of the barrel underwear and the flow of water, when the rotating bucket 1 drains after the washing, the lock mechanism is switched to a state that restricts the rotation of the rotating bucket 1, and the rotating bucket 1 is stopped.
  • the rotating bucket 1 is in a stationary state.
  • the second acting force provided by the second acting force providing unit 7 causes the valve plug 5 to move to open the water outlet and start drainage, and most of the sediments such as sand, line debris, particles, and dirt are discharged through the water outlet inside the valve body 4 .
  • the locking mechanism releases the positioning restriction on the rotating bucket 1, and the second acting force providing unit 7 also retracts the second acting force provided to the valve plug 5 to open the water outlet channel, and the valve plug 5 is only subjected to the first acting force providing unit
  • the water outlet of the rotating bucket 1 was closed and reset, and the water outlet of the rotating bucket 1 was closed to start dehydration.
  • the washing machine controlled the rotating bucket 1 to rotate at a high speed at a higher speed than the rotation speed during washing. Due to the centrifugal force, the water in the clothes was thrown out. The dewatering hole that rises to the upper part along the inner peripheral wall of the rotating barrel is discharged.
  • the valve body 4 includes a first cover 44 and a second cover 45.
  • the first cover 44 is provided with at least one water hole 441 to form the water inlet.
  • the second cover 45 is connected to the first cover 44.
  • the two covers cooperate to form the cavity 43.
  • a water outlet 451 is provided in a direction opposite to the water inlet 41 to form the water outlet 42.
  • the first cover 44 and the second cover 45 are sandwiched between the inside and outside of the barrel bottom.
  • the first cover 44 is installed on the side of the barrel corresponding to the inside of the rotating barrel, and the second cover 45 is installed on the barrel.
  • the bottom corresponds to the outer side of the rotating bucket, and the cavity 43 formed by the cooperation of the two covers passes through the drainage opening.
  • the first cover 44 is provided with a plurality of water passage holes 441.
  • a filtering structure is provided on the outer periphery of the area where the water passage holes 41 are located (not shown in the figure). ), Such as a toothed rib or a staggered filtering water channel, and / or, a plurality of protrusions are provided on the outer side of the first cover, and the water hole is correspondingly provided at the protrusion.
  • the convex It has a curved surface with a high center and a low periphery, and the water hole penetrates the highest part of the center of the protrusion.
  • the second cover 45 has a groove 452, the first cover 44 is installed on the opening of the groove 452, the cavity 43 is formed inside, and a water outlet 451 is formed at the bottom of the groove to form the
  • the water outlet end 42 has a gap between the outer periphery of the valve plug 5 and the side wall of the groove 452 to form a second water path.
  • the valve plug 5 is controlled away from the groove bottom so that the valve plug 5 and the groove bottom communicate with the second water path and the water outlet.
  • the size of the water outlet 451 is sufficient for the second acting force provided by the second acting force providing unit 7 to act on the valve plug 5.
  • the side wall of the groove 452 of the second cover 45 and the outer periphery of the valve plug 5 in the present embodiment are provided with a guide for limiting the movement of the valve plug 5 between the water inlet 41 and the water outlet 42 along a predetermined trajectory.
  • the guide structure includes a guide groove 46 and a guide protrusion (not shown) located in the guide groove, which are respectively provided on the side wall of the groove 452 and the outer periphery of the valve plug 5.
  • the guide groove 46 is provided along the direction in which the valve plug 5 moves.
  • the side wall of the groove 452 near the water inlet 41 is provided with a blocking structure that restricts the movement of the valve plug 5 to a certain position; the blocking structure defines the distance between the valve plug 5 and the water inlet 41 to meet the setting Water flow of the first waterway.
  • the groove 452 is a groove structure with a stepped inner diameter.
  • the inner diameter R of the groove near the water outlet end is greater than the inner diameter r of the groove near the water inlet end.
  • the stepped position of the groove inner diameter forms the blocking structure 9 and the diameter of the valve plug 5.
  • D satisfies: r ⁇ D ⁇ R, and the difference between R and D satisfies the set water flow of the second waterway.
  • the first force providing unit 6 described in this embodiment is a compression spring, which supports the plug 5 at one end, provides an elastic force for the normally closed water outlet end 42 of the plug 5, and supports the first seal at the other end. Cover 44.
  • the compression spring has a circular table structure.
  • the diameter of the end supported on the first cover 44 is smaller than the diameter of the end supported on the valve plug 5. This structure can reduce the misalignment caused by the movement of the valve plug.
  • 44 is provided with a positioning boss 442
  • the valve plug 5 is provided with an annular limiting groove 51, one end of the compression spring is sleeved on the positioning boss 442, and the other end is arranged in the limiting groove 51.
  • the valve plug 5 includes a force receiving portion 52 that receives a first force and a sealing portion 53 that closes a third water path.
  • the force receiving portion 52 is connected to the sealing portion 53 and receives The force portion 52 is provided on the side close to the water inlet end 41, and the sealing portion 53 is provided on the side close to the water outlet end 42.
  • the sealing portion 53 has a certain elastic deformation to maintain a seal with the water outlet end 42.
  • the hardness of the force receiving portion is greater than The hardness of the seal.
  • the sealing portion 53 is also used to receive the second acting force.
  • the thickness at the position of the sealing portion 53 is designed to be greater than that of other locations. In order to further maintain the sealing effect between the sealing portion and the outlet end, the thickness is increased The part corresponding to the inside of the water outlet 451 of the water outlet 42.
  • the force receiving portion 52 and the sealing portion 53 are connected in an abutting manner, or the force receiving portion 52 is integrally connected with the sealing portion 53, or the force receiving portion 52 and the sealing portion 53 are an integrated structure.
  • the side of the valve plug corresponding to the water inlet has a tapered structure with a middle height and a gradually decreasing outer circumference (Figure (Not shown), the tapered structure can also reduce the water storage in the cavity after the drainage is finished, and avoid moisture breeding bacteria.
  • the second force providing unit 7 includes a jacking member 71 and a driving member 72.
  • the jacking member 71 jacks the valve plug 5 toward the water inlet 41 to open the valve.
  • the driving member 72 is a power component that drives the jacking member 71 to jack up the valve plug 5.
  • the jacking member 71 includes a jacking rod and a waterproof sleeve 711 sleeved on the outside of the jacking rod.
  • the jacking rod is connected to the driving member, and the waterproof sleeve extends from the top of the jacking rod to at least surrounds the connection position between the jacking rod and the driving member.
  • the waterproof cover 711 is configured as a corrugated cover structure (see FIG. 3).
  • the structure of the driving member is known to those skilled in the art, for example, the driving structure for driving the locking lever in the background art of the present invention, and the driving structure for driving the telescopic rod-shaped member in the prior art, will not be repeated here.
  • the rotating tub can be driven to provide power for the water flow and laundry to be reversed, thereby improving the washing ratio.
  • the rotating tub and the pulsator are driven to rotate in opposite directions to each other. Not only driving the rotating bucket and the pulsator to rotate in opposite directions to each other, but also using the force of the pulsator to stir the water flow to drive the rotating bucket to rotate freely, or driving the rotating bucket and the pulsator to rotate in the same direction and at different speeds.
  • the rotating bucket is a bucket
  • the washing water flows only in the rotating bucket, and the peripheral wall of the rotating bucket does not have a dehydration hole for the washing water in and out of the existing ordinary washing machine.
  • the water flow inside the rotating bucket converts the impact force of the existing ordinary washing machine into and out of the dewatering hole into the kneading force of the water flow on the laundry, especially the pulsator and the inner bucket rotate in opposite directions to each other.
  • the washing water and laundry are rubbed and turned, which greatly improves the washing ratio.
  • the drainage port is provided on the side wall of the rotary bucket and is located at the bottom of the rotary bucket, and the valve body is installed in the drainage port on the side wall of the rotary bucket.
  • the present invention can utilize the space on the side of the washing machine by arranging the drain sealing valve on the side, thereby reducing the occupation of the bottom space. , So that the usable amount of the bottom space of the washing machine is increased, thereby facilitating the arrangement of the devices at the bottom of the washing machine.
  • the drainage sealing valve is arranged on the side, which can reduce the impact of the vibration of the washing machine on the drainage sealing valve, thereby further improving the reliability of drainage and sealing.
  • drain sealing valve of the present invention is not limited to a washing machine, and can also be used in other water-containing appliances that require drainage.

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  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种排水密封阀、洗衣机旋转桶及洗衣机，排水密封阀（2）包括阀体(4)和阀塞（5），在阀体（4）内限定出由进水端（41）至出水端（42）形成水路的空腔（43），阀塞（5）可活动地设于空腔（43）内，空腔（43）内还安装有提供给阀塞（5）常闭阀体水路作用力的第一作用力提供单元（6）。洗衣机旋转桶（1）为可旋转的盛水桶结构，旋转桶（1）底部设有排水口，采用排水密封阀（2）控制排水口的开闭。洗衣机包括安装于旋转桶（1）外部的集水槽，集水槽上安装有控制打开排水密封阀（2）阀体水路的排水开启组件（7）。在洗涤过程中，排水密封阀（2）封闭排水口，配置为与旋转桶（1）一体转动；在排、脱水过程中，控制排水密封阀（2）开启从排水口排水。

Description

排水密封阀、洗衣机旋转桶及洗衣机 技术领域
本发明属于洗涤设备领域，具体地说，涉及一种排水密封阀、洗衣机旋转桶及洗衣机。
背景技术
现有波轮式的洗衣机，洗涤桶的周壁上有多个脱水孔，洗涤桶和盛水桶之间连通，洗涤桶为衣物存放区，用于衣物的洗涤，洗涤桶与盛水桶侧壁之间充满的这部分水不参与洗涤，真正参与洗涤的水是洗涤桶中的部分，这使得水资源浪费巨大，另外，洗涤桶和盛水桶之间过多的水也会降低洗涤剂的浓度，影响洗涤效果。
随着技术的进步，将洗涤桶改为无孔，即洗涤桶的周壁无脱水孔，洗涤用水完全贮存在洗涤桶中，这时洗涤桶和盛水桶之间已经无水，俗称桶间无水。脱水时，开启洗涤桶底部的排水口，泥沙和线屑随着水流从底部排走。衣服中含水则从洗涤桶周壁上部排出。而洗涤时，则需要封闭洗涤桶底部的排水口。
为此，相关技术中提出了用于限制洗涤桶旋转的阻挡机构和封闭排水口的排水密封结构，具体而言，在洗涤桶底部设置锁止孔，并利用可伸缩的锁止杆与锁止孔相互配合，锁止杆伸出时与锁止孔凹凸配合，洗涤桶锁定，锁止杆缩回时脱出锁止孔，洗涤桶接触锁定。
其中，当洗涤时，洗涤桶被锁定，利用排水密封结构关闭洗涤桶的排水口，而当脱水时，洗涤桶需要转动，排水密封结构打开洗涤桶的排水口。该排水密封结构不仅结构复杂，而且在洗涤过程需要限制洗涤桶转动，使得许多需要洗涤桶转动配合的洗涤方式无法实现，相对降低了洗涤效率。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种排水密封阀，该排水密封阀具有结构简单、自锁密封、密封可靠等优点。
本发明另一目的在于提供一种具有该排水密封阀的洗衣机旋转桶。
本发明还提供一种具有该旋转桶的洗衣机。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种排水密封阀，包括阀体和阀塞，于所述的阀体内限定出由进水端至出水端形成水路 的空腔，所述的阀塞可活动地设于空腔内，所述空腔内还安装有提供给阀塞常闭阀体水路作用力的第一作用力提供单元。
进一步的，为了使得阀塞能够更好的常闭阀体水路，优化提供给阀塞常闭阀体水路的作用力，所述第一作用力提供单元设于进水端与阀塞之间的空腔内；
优选的，第一作用力提供单元提供阀塞向出水端方向的作用力以密封阀塞与出水端之间的水路；
还优选的，第一作用力提供单元提供阀塞常闭阀体水路作用力的反方向作用力作用于进水端。
进一步的，为了使得阀塞能够在空腔内移动更顺畅以更好的开启阀体内的水路，所述的阀塞在进水端和出水端之间的空腔内限制为直线运动设置。
进一步的，所述阀体空腔与阀塞配合形成由进水端至出水端的出水水路，依次包括进水端至阀塞的第一水路、阀塞外周与空腔内壁之间的第二水路，及阀塞靠近出水端一侧的端面与出水端之间构成可开闭的第三水路。
进一步的，为了防止开启水路时阀塞移动错位，所述阀塞和阀体之间具有限定阀塞在进水端与出水端之间沿预定方向移动的导向结构。
进一步的，为了减少开启水路时阀塞移动过量对第一作用力提供单元和进水端造成破坏，所述阀体内还设有限定阀塞移动至一定位置的阻挡结构。
进一步的，所述的阀体包括，
第一封盖，设有通水孔，形成所述进水端；
第二封盖，与第一封盖连接，两封盖配合形成所述空腔，与进水端相反的方向设有出水口，形成所述出水端。
进一步的，所述的第一封盖设有多个通水孔，为了防止异物如线屑等进入通水孔造成堵塞，在通水孔所在区域的外周设有过滤结构，如齿状的挡筋或挡筋交错构成的过滤水道，和/或，第一封盖对外的一侧设有多个凸起，通水孔对应设于凸起处，优选的，凸起具有中心高四周低的弧形面，通水孔贯通凸起的中心最高处。
进一步的，为了简化排水密封阀的装配工艺，所述的第二封盖具有一凹槽，第一封盖安装于凹槽开口上，内部形成所述空腔，凹槽底设有出水口，形成所述出水端，阀塞外周与凹槽侧壁之间具有间隙形成第二水路，控制阀塞远离凹槽底使得阀塞与凹槽底之间形成连通第二水路和出水口的第三水路。
进一步的，所述的凹槽侧壁与阀塞外周设有限定阀塞在进水端与出水端之间沿预定轨迹移动的导向结构；
优选的，导向结构包括导向槽和位于导向槽内的导向凸，分别对应设于凹槽侧壁与阀塞外周。
进一步的，靠近进水端的凹槽侧壁设有限定阀塞移动至一定位置的阻挡结构；
优选的，阻挡结构为设于凹槽侧壁阻挡凸，或者凹槽为内径阶梯变化的槽体结构，靠近出水端的凹槽内径大于靠近进水端的凹槽内径。
进一步的，所述的第一作用力提供单元为一压缩状态的弹性支撑件，一端支撑连接阀塞，提供支撑阀塞常闭出水端的弹力，另一端支撑连接第一封盖。
进一步的，所述的弹性支撑件为压缩弹簧，两端分别限位支撑在第一封盖和阀塞上；
优选的，压缩弹簧呈一圆台结构，支撑在第一封盖的一端直径小于支撑在阀塞的一端直径，该结构能够减少阀塞移动造成的错位；
还优选的，第一封盖设有定位凸台，阀塞设有环形的限位槽，压缩弹簧一端套设于定位凸台上，另一端设于限位槽内。
进一步的，所述的阀塞具有接收第一作用力提供单元提供的常闭阀体水路作用力的受力部和关闭阀体水路的密封部，受力部与密封部连接，受力部设于靠近进水端的一侧，密封部设于靠近出水端的一侧；
优选的，受力部的硬度大于密封部的硬度；
优选的，受力部与密封部抵触连接，或者，受力部与密封部一体连接。
进一步的，密封部与出水端端面密封实现第三水路的常闭，密封部对应出水端出水口位置的厚度大于其它部位的厚度，以延伸至出水口内。该结构既能增加阀塞受力的强度，减少第二作用力提供单元对阀塞密封部提供作用力时造成的损坏，还能起到引导阀塞复位密封出水端的作用，加强密封效果，防止阀塞被打开后再次复位时的错位造成密封不严现象的发生。
进一步的，为了减少进水端一侧水压对阀塞向进水端方向移动造成的阻力，以方便开启阀体水路，所述的阀塞对应进水端的一侧具有中间高、向外周渐低的锥形结构，该锥形结构还能够减少排水结束后空腔内的存水，避免潮湿滋生细菌。
本发明所述的洗衣机旋转桶，为可旋转的盛水桶结构，旋转桶下部设有排水口，所述的排水口安装有上述的排水密封阀。
本发明所述的洗衣机，包括上述旋转桶和安装于旋转桶外部的集水槽，所述集水槽上安装有控制打开所述排水密封阀阀体水路的排水开启组件。
进一步的，所述的排水开启组件包括提供给阀塞开启阀体水路作用力的第二作用力提供单元。
进一步的，所述的第二作用力提供单元沿出水端至进水端的方向提供给阀塞开启阀体水路的作用力。
进一步的，所述的第二作用力提供单元包括，
顶起件，顶起阀塞向进水端方向运动以开启阀体水路；
驱动件，驱动顶起件顶起阀塞的部件。
进一步的，所述的顶起件包括顶杆和套在顶杆外部的防水套，顶杆与驱动件连接，防水套自顶杆的顶部至少延伸至包围顶杆与驱动件的连接位置。
进一步的，所述的顶起件自出水端的出水口位置提供顶起阀塞的支撑作用力。
进一步的，在洗涤过程中，排水密封阀封闭排水口，配置为与旋转桶一体转动；在排、脱水过程中，控制排水开启组件驱动阀塞移动开启阀体水路打开排水口。
进一步的，所述的旋转桶中设有一水流搅拌器，洗涤过程中水流搅拌器配置为与旋转桶各自独立转动；
优选的，洗涤过程中水流搅拌器配置为与旋转桶互为反向转动。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
本发明所述的排水密封阀为常闭自锁阀结构，结构简单可靠，不需要外部作用力即能实现自身的水路封闭，水压越大，密封效果越好，同时由于排水密封阀为常闭结构，避免了初始漏水的可能性，相对节约了水资源。
本发明排水密封阀设计精巧，能够防止异物对水路密封的影响，减少密封不严导致漏水的可能性，具有结构简单、排水和密封性能可靠等优点。
本发明所述的排水密封阀常闭密封洗衣机旋转桶桶底的排水口，由于排水口为常闭结构，不影响旋转桶的运动，洗涤过程中能够利用旋转桶的转动增强洗涤水流，相对提高了洗涤效率。
本发明用于洗衣机的排水密封阀，具有结构简单、排水和密封性能可靠等优点。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明洗衣机中的排水密封阀常闭状态示意图；
图2是本发明洗衣机中的排水密封阀开启状态示意图；
图3是本发明洗衣机旋转桶与排水密封阀装配结构示意图；
图4是图3中的A部放大示意图；
图5是图4中排水密封阀开启状态示意图。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1至图5所示，根据本发明排水密封阀安装于洗衣机上的实施例，该洗衣机包括具有盛水功能的旋转桶1，旋转桶1底部设有排水口(图中未标示)，对应该排水口安装有排水密封阀2，旋转桶1外部设有收集由排水口排出的洗涤水的集水槽，例如外桶3，或者集水槽是支撑在旋转桶下方的支撑板，支撑板与洗衣机的外壳密封连接实现集水；外桶3可以采 用现有洗衣机的外桶或低于旋转桶上端沿的桶状集水结构。排水密封阀2包括阀体4、设于阀体4内的阀塞5和提供阀塞5作用力以常闭阀体水路的第一作用力提供单元6，集水槽对应安装有控制打开所述排水密封阀2阀体水路的排水开启组件。所述的排水开启组件包括提供给阀塞5开启阀体水路作用力的第二作用力提供单元7。第二作用力提供单元7设于阀体4外部驱动阀塞5动作以开启阀体4水路，阀体4安装于旋转桶1的排水口内，第二作用力提供单元7设于排水口下方的集水槽上，例如外桶3的桶底(参阅图1和图2)。
其中，第二作用力提供单元7提供给阀塞5的作用力大于第一作用力提供单元6提供给阀塞5的作用力与洗衣机进水最大水位对阀塞的压力之和。
首先参考附图描述本发明实施例的排水密封阀2。
如图1至图5所示，根据本发明实施例的排水密封阀2包括阀体4和阀塞5，于所述的阀体4内限定出由进水端41至出水端42形成水路的空腔43，所述的阀塞5可活动地设于空腔43内，所述空腔43内还安装有提供给阀塞5常闭阀体水路作用力的第一作用力提供单元6。第一作用力提供单元6提供给阀塞5常闭阀体水路的作用力以下均称为第一作用力，第二作用力提供单元7提供给阀塞5开启阀体水路的作用力以下均称为第二作用力。
第一作用力和第二作用力的方向相反，分别对应进水端41至出水端42的方向及其反方向。所述的阀塞5在进水端41和出水端42之间的空腔43内直线运动。该结构使得阀塞能够在空腔内移动更顺畅，作用力利用率更高，更好的开启和关闭阀体内的水路。
所述第一作用力提供单元6设于进水端41与阀塞5之间的空腔43内；第一作用力提供单元6提供阀塞5第一作用力的反向作用力作用于进水端41。
所述阀体空腔43与阀塞5配合形成由进水端41至出水端42的出水水路，依次包括进水端41至阀塞5的第一水路、阀塞5外周与空腔43内壁之间的第二水路，及阀塞5靠近出水端42一侧的端面与出水端42之间构成可开闭的第三水路(参阅图5)。第一水路和第二水路为通路，阀塞5常闭第三水路，第一作用力始终作用于阀塞5，使得阀塞5紧贴出水端42，封闭第三水路；当第二作用力施加给阀塞5时，阀塞5克服第一作用力和水的压力，阀塞5向进水端41方向移动，开启第三水路，出水水路完全相通。
为了防止开启水路时阀塞5移动错位，所述阀塞5和阀体4之间具有限定阀塞5在进水端41与出水端42之间沿预定方向移动的导向结构。
进一步的，为了减少开启水路时阀塞5移动过量对第一作用力提供单元6和进水端41造成破坏，同时也避免第一水路的通水量变小从而降低排水密封阀的出水流速，所述阀体4内 还设有限定阀塞5移动至一定位置的阻挡结构。
根据本发明实施例的排水密封阀2，能够实现旋转桶排水口排水的打开和关闭，具体利用第一作用力提供单元6和第二作用力提供单元7提供给阀塞5的作用力实现该排水密封阀出水水路的关闭和打开，相比相关技术中采用驱动机构驱动阀塞封闭排水口的结构，结构更加简单，而且简化了力的传递路径，使传动更加简单，从而降低了对配合精度的要求，进而大幅提高了动作转换的稳定性。此外，利用第一作用力提供单元6向阀塞5提供关闭出水水路的第一作用力，该第一作用力的提供更加持续可靠，且受进水水压的影响，进水越多密封越好，从而密封效果更加可靠。因此，根据本发明实施例的用于洗衣机旋转桶的排水密封阀具有结构简单、传动稳定、密封可靠等优点。
在本发明的洗衣机实施例中，为了增强在排水时第二作用力提供单元7与阀塞5之间的精准定位，洗衣机还包括对旋转桶1转动至一定位置的定位装置，例如，限制旋转桶动作的锁止机构(图中未示出)，该锁止机构在限制旋转桶转动的状态和允许旋转桶转动的状态之间可切换，所述锁止机构安装于外桶，或者锁止机构一部分安装在旋转桶，另一部分安装在外桶。
具体而言，洗衣机在进水、洗涤过程中，安装在旋转桶1底部的排水密封阀封闭出水水路，洗涤水被完全密封在旋转桶1内，只有旋转桶1中有水，洗涤衣物的过程中，洗衣机可控制旋转桶1向至少一个方向转动，例如可控制旋转桶1与波轮8互为反向转动实现双动力洗涤效果，也可不控制旋转桶1转动，使得旋转桶1呈自由状态，受桶内衣物翻滚和水流流动影响自由转动；当洗涤结束旋转桶1排水时，锁止机构切换至限制旋转桶1转动的状态，旋转桶1被停止，此时旋转桶1处于一个静止的状态，第二作用力提供单元7提供的第二作用力使得阀塞5移动开启出水水路，开始排水，大部分泥沙、线屑、颗粒、污垢等沉积物通过阀体4内的出水水路排出。排水结束，锁止机构解除对旋转桶1的定位限制，且第二作用力提供单元7也收回提供给阀塞5开启出水水路的第二作用力，阀塞5仅受第一作用力提供单元的影响，复位重新封闭出水水路，旋转桶1的排水口被关闭，开始脱水，洗衣机控制旋转桶1以高于洗涤时的转动速度单向高速转动，受离心力影响，衣物中的水被甩出沿旋转桶内周壁上升至上部的脱水孔排出。
其中，锁止机构和脱水原理均为本领域的技术人员已知的，例如本发明背景技术的介绍，这里不再赘述。
实施例一
如图4和图5所示，本实施例所述的阀体4包括第一封盖44和第二封盖45，第一封盖 44设有至少一个通水孔441，形成所述进水端41；第二封盖45与第一封盖44连接，两封盖配合形成所述空腔43，与进水端41相反的方向设有出水口451，形成所述出水端42。所述的第一封盖44和第二封盖45夹持设置在桶底的内外两侧，第一封盖44安装于桶底对应旋转桶内部的一侧，第二封盖45安装于桶底对应旋转桶外部的一侧，两封盖配合形成的空腔43穿过所述的排水口。
进一步的，第一封盖44设有多个通水孔441，为了防止异物如线屑等进入通水孔造成堵塞，在通水孔41所在区域的外周设有过滤结构(图中未示出)，如齿状的挡筋或挡筋交错构成的过滤水道，和/或，第一封盖对外的一侧设有多个凸起，通水孔对应设于凸起处，优选的，凸起具有中心高四周低的弧形面，通水孔贯通凸起的中心最高处。当排水至要结束的时候，线屑等异物不能顺着水流进入通水孔造成堵塞，剩余的水可在脱水过程中从旋转桶上部排出。
优选的，所述的第二封盖45具有一凹槽452，第一封盖44安装于凹槽452开口上，内部形成所述空腔43，凹槽底设有出水口451，形成所述出水端42，阀塞5外周与凹槽452侧壁之间具有间隙形成第二水路，控制阀塞5远离凹槽底使得阀塞5与凹槽底之间形成连通第二水路和出水口的第三水路。出水口451的尺寸足以使得第二作用力提供单元7提供的第二作用力作用于阀塞5上。
实施例二
如图5所示，本实施例所述第二封盖45的凹槽452侧壁与阀塞5外周设有限定阀塞5在进水端41与出水端42之间沿预定轨迹移动的导向结构。该导向结构包括导向槽46和位于导向槽内的导向凸(图中未示出)，分别对应设于凹槽452侧壁与阀塞5外周，导向槽46沿阀塞5移动的方向设置。
进一步的，靠近进水端41的凹槽452侧壁设有限定阀塞5移动至一定位置的阻挡结构；该阻挡结构限定出阀塞5与进水端41之间的距离，以满足设定的第一水路通水量。具体的，凹槽452为内径阶梯变化的槽体结构，靠近出水端的凹槽内径R大于靠近进水端的凹槽内径r，凹槽内径阶梯变化的位置形成该阻挡结构9，阀塞5的直径D满足：r＜D＜R，R与D的差值满足设定的第二水路通水量。
实施例三
如图4所示，本实施例所述的第一作用力提供单元6为压缩弹簧，一端支撑连接阀塞5，提供支撑阀塞5常闭出水端42的弹力，另一端支撑连接第一封盖44。
为了阀塞5均匀受力，压缩弹簧呈一圆台结构，支撑在第一封盖44的一端直径小于支撑 在阀塞5的一端直径，该结构能够减少阀塞移动造成的错位；第一封盖44设有定位凸台442，阀塞5设有环形的限位槽51，压缩弹簧一端套设于定位凸台442上，另一端设于限位槽51内。
实施例四
如图3和图4所示，本实施例所述的阀塞5具有接收第一作用力的受力部52和关闭第三水路的密封部53，受力部52与密封部53连接，受力部52设于靠近进水端41的一侧，密封部53设于靠近出水端42的一侧。
优选的，密封部53具有一定的弹性形变，以保持与出水端42的密封，相反，为了保持受力部52受力方向，避免受力错位导致阀塞脱离移动路径，受力部的硬度大于密封部的硬度。
由于第二作用力和第一作用力的方向相反，第二作用力提供单元7设于阀体4的外部(参阅图1和图2)，因此，密封部53也用于接收第二作用力，为了减少第二作用力对阀塞密封部53造成的损坏，在密封部53的受力位置的厚度设计为大于其它位置的厚度，为了进一步保持密封部与出水端的端面密封效果，该厚度增加的部分对应在出水端42的出水口451内。
优选的，受力部52与密封部53抵触连接，或者，受力部52与密封部53一体连接，再或者受力部52与密封部53为一体结构。
进一步的，为了减少开启第三水路时，进水端一侧水压对阀塞造成的阻力，所述的阀塞对应进水端的一侧具有中间高、向外周渐低的锥形结构(图中未示出)，该锥形结构还能够减少排水结束后空腔内的存水，避免潮湿滋生细菌。
实施例五
如图1和图2所示，本发明所述的第二作用力提供单元7包括顶起件71和驱动件72，顶起件71顶起阀塞5向进水端41方向运动以开启阀体水路，驱动件72为驱动顶起件71顶起阀塞5的动力部件。
进一步的，所述的顶起件71包括顶杆和套在顶杆外部的防水套711，顶杆与驱动件连接，防水套自顶杆的顶部至少延伸至包围顶杆与驱动件的连接位置，优选的，防水套711配置为波纹套结构(参阅图3)。
该驱动件结构为本领域的技术人员已知的，例如本发明背景技术中用于驱动锁止杆的驱动结构，及现有技术中驱动杆状部件伸缩的驱动结构，这里不再赘述。
实施例六
本发明所述的洗衣机，在洗涤过程中，可驱动旋转桶转动以提供给水流和衣物翻转的动 力，提高洗净比；优选的，驱动旋转桶和波轮互为反向转动，本发明洗衣机不仅仅是驱动旋转桶和波轮互为反向转动，也可以利用波轮搅动水流的作用力驱动旋转桶自由转动，或者，驱动旋转桶和波轮同向不同速转动。
本发明由于旋转桶为盛水桶，洗涤水仅仅在旋转桶内流动，旋转桶周壁不具有现有普通洗衣机洗涤水进出循环的脱水孔，在洗涤时旋转桶的转动能够提高洗涤水的揉搓能力，旋转桶内部的水流随桶的转动将现有普通洗衣机洗涤水进出脱水孔的冲击作用力转换为水流对衣物的揉搓作用力，尤其是波轮和内桶的互为反向转动，更好地将洗涤水和衣物揉搓翻转，大大提高了洗净比。
在本发明的排水密封阀所能应用的一些具体示例中，排水口设在旋转桶的侧壁且位于旋转桶的底部，阀体安装于旋转桶侧壁的排水口中。对于洗衣机而言，由于其底部空间通常因设有电机、离合器等器件而空间紧张，本发明通过将排水密封阀设置在侧部，可以利用洗衣机侧部的空间，从而减小对底部空间的占用，使洗衣机底部空间的可使用量增加，从而利于洗衣机底部器件的布置。此外，排水密封阀设置在侧部，可以减小洗衣机振动对排水密封阀的影响，从而进一步提高排水和密封的可靠性。
另外，本发明的排水密封阀不局限于洗衣机中，也可用于其它需要排水的盛水器具中。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (20)

  1. 一种排水密封阀，包括阀体和阀塞，其特征在于：于所述的阀体内限定出由进水端至出水端形成水路的空腔，所述的阀塞可活动地设于空腔内，所述空腔内还安装有提供给阀塞常闭阀体水路作用力的第一作用力提供单元。
  2. 根据权利要求1所述的排水密封阀，其特征在于：所述第一作用力提供单元设于进水端与阀塞之间的空腔内；
    优选的，第一作用力提供单元提供阀塞向出水端方向的作用力以密封阀塞与出水端之间的水路；
    还优选的，第一作用力提供单元提供阀塞常闭阀体水路作用力的反方向作用力作用于进水端。
  3. 根据权利要求1所述的排水密封阀，其特征在于：所述的阀塞在进水端和出水端之间的空腔内限制为直线运动设置。
  4. 根据权利要求1所述的排水密封阀，其特征在于：所述阀体空腔与阀塞配合形成由进水端至出水端的出水水路，依次包括进水端至阀塞的第一水路、阀塞外周与空腔内壁之间的第二水路，及阀塞靠近出水端一侧的端面与出水端之间构成可开闭的第三水路。
  5. 根据权利要求1所述的排水密封阀，其特征在于：所述阀塞和阀体之间具有限定阀塞在进水端与出水端之间沿预定方向移动的导向结构。
  6. 根据权利要求1所述的排水密封阀，其特征在于：所述阀体内还设有限定阀塞移动至一定位置的阻挡结构。
  7. 根据权利要求1-6任一所述的排水密封阀，其特征在于：所述的阀体包括，
    第一封盖，设有通水孔，形成所述进水端；
    第二封盖，与第一封盖连接，两封盖配合形成所述空腔，与进水端相反的方向设有出水口，形成所述出水端。
  8. 根据权利要求7所述的排水密封阀，其特征在于：所述的第二封盖具有一凹槽，第一封盖安装于凹槽开口上，内部形成所述空腔，凹槽底设有出水口，形成所述出水端，阀塞外周与凹槽侧壁之间具有间隙形成第二水路，控制阀塞远离凹槽底使得阀塞与凹槽底之间形成连通第二水路和出水口的第三水路。
  9. 根据权利要求8所述的排水密封阀，其特征在于：所述的凹槽侧壁与阀塞外周设有限 定阀塞在进水端与出水端之间沿预定轨迹移动的导向结构；
    优选的，导向结构包括导向槽和位于导向槽内的导向凸，分别对应设于凹槽侧壁与阀塞外周。
  10. 根据权利要求8所述的排水密封阀，其特征在于：靠近进水端的凹槽侧壁设有限定阀塞移动至一定位置的阻挡结构；
    优选的，阻挡结构为设于凹槽侧壁阻挡凸，或者凹槽为内径阶梯变化的槽体结构，靠近出水端的凹槽内径大于靠近进水端的凹槽内径。
  11. 根据权利要求7-10任一所述的排水密封阀，其特征在于：所述的第一作用力提供单元为一压缩状态的弹性支撑件，一端支撑连接阀塞，提供支撑阀塞常闭出水端的弹力，另一端支撑连接第一封盖。
  12. 根据权利要求11所述的排水密封阀，其特征在于：所述的弹性支撑件为压缩弹簧，两端分别限位支撑在第一封盖和阀塞上；
    优选的，压缩弹簧呈一圆台结构，支撑在第一封盖的一端直径小于支撑在阀塞的一端直径；
    还优选的，第一封盖设有定位凸台，阀塞设有环形的限位槽，压缩弹簧一端套设于定位凸台上，另一端设于限位槽内。
  13. 根据权利要求1-12任一所述的排水密封阀，其特征在于：所述的阀塞具有接收第一作用力提供单元提供的常闭阀体水路作用力的受力部和关闭阀体水路的密封部，受力部与密封部连接，受力部设于靠近进水端的一侧，密封部设于靠近出水端的一侧；
    优选的，受力部的硬度大于密封部的硬度；
    优选的，受力部与密封部抵触连接，或者，受力部与密封部一体连接。
  14. 一种洗衣机旋转桶，为可旋转的盛水桶结构，旋转桶下部设有排水口，其特征在于：所述的排水口安装有如权利要求1-13任一所述的排水密封阀。
  15. 一种洗衣机，具有如权利要求14所述的洗衣机旋转桶和安装于旋转桶外部的集水槽，其特征在于：所述集水槽上安装有控制打开所述排水密封阀阀体水路的排水开启组件。
  16. 根据权利要求15所述的洗衣机，其特征在于：所述的排水开启组件包括提供给阀塞开启阀体水路作用力的第二作用力提供单元。
  17. 根据权利要求16所述的洗衣机，其特征在于：所述的第二作用力提供单元沿出水端至进水端的方向提供给阀塞开启阀体水路的作用力。
  18. 根据权利要求16或17所述的洗衣机，其特征在于：所述的第二作用力提供单元包括，
    顶起件，顶起阀塞向进水端方向运动以开启阀体水路；
    驱动件，驱动顶起件顶起阀塞的部件。
  19. 根据权利要求15所述的洗衣机，其特征在于：在洗涤过程中，排水密封阀封闭排水口，配置为与旋转桶一体转动；在排、脱水过程中，控制排水开启组件驱动阀塞移动开启阀体水路打开排水口。
  20. 根据权利要求15所述的洗衣机，其特征在于：所述的旋转桶中设有一水流搅拌器，洗涤过程中水流搅拌器配置为与旋转桶各自独立转动；
    优选的，洗涤过程中水流搅拌器配置为与旋转桶互为反向转动。
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