WO2020007290A1 - 一种排水阀的阀塞、排水阀及安装方法 - Google Patents

一种排水阀的阀塞、排水阀及安装方法 Download PDF

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Publication number
WO2020007290A1
WO2020007290A1 PCT/CN2019/094368 CN2019094368W WO2020007290A1 WO 2020007290 A1 WO2020007290 A1 WO 2020007290A1 CN 2019094368 W CN2019094368 W CN 2019094368W WO 2020007290 A1 WO2020007290 A1 WO 2020007290A1
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WO
WIPO (PCT)
Prior art keywords
pipe section
valve plug
wall
valve
section
Prior art date
Application number
PCT/CN2019/094368
Other languages
English (en)
French (fr)
Inventor
吕艳芬
许升
朱国防
吕佩师
Original Assignee
青岛海尔洗衣机有限公司
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Application filed by 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to JP2020571791A priority Critical patent/JP7114021B2/ja
Publication of WO2020007290A1 publication Critical patent/WO2020007290A1/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
    • 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
    • D06F39/083—Liquid discharge or recirculation 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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 machines, and in particular relates to a valve plug of a drain valve, a drain valve and a mounting method.
  • washing machines are increasingly using non-porous inner tubs. No water is stored between the inner tub and the outer tub during washing.
  • the inner tub is the washing tub
  • the outer tub is the drainage tub
  • the washing machine includes an outer bucket, an inner bucket, an air chamber, and a ...-pressure sensor connected to the air chamber.
  • the bottom is provided with at least one inner tub drain
  • the bottom of the outer tub is provided with a telescopic drainage valve capable of blocking the inner tub drain
  • the bottom of the outer tub is provided with an outer tub drain
  • the outer tub drain is provided with a washing machine drain pipe.
  • the barrel is provided with an air chamber communicating with the inner barrel, and the air chamber is provided with an air chamber drainage port capable of discharging water in the air chamber.
  • the valve stem of the telescopic drainage valve has a hollow structure, and washing water can be drawn out from the hollow portion of the telescopic structure, and can be led to a detection device for detection through a drainage pipe.
  • the valve stem has two sections. When the washing water is too dirty or is used for a long time, it is easy to cause blockage at the connection, the output power of the driving device is increased, and the driving device is easily damaged during long-term use.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide a valve plug of a drain valve, a drain valve, and an installation method.
  • the valve plug is tubular, and the tubular valve plug is deformed into a sleeve structure, which solves the problem.
  • valve plug is integrally formed to solve the problem of poor sealing of the split valve plug; when the valve plug closes the drain port, the washing water can be led out through the first pipe section, which is convenient for washing water Water quality, water level, etc., and the first pipe section isolates the washing water from the valve plug stem and other structures of the drain valve, which will not cause damage to the valve plug stem and other structures of the drain valve, which is safer and the service life of the drain valve is greatly increased. .
  • a valve plug for a drainage valve includes a first pipe section and a second pipe section that are connected to each other.
  • the first pipe section can extend into the second pipe section / the second pipe section can be sleeved outside the first pipe section to form a sleeve structure.
  • the inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section, and the first pipe section can extend into the second pipe section to form a sleeve-like structure;
  • the second pipe section may be sleeved outside the first pipe section to form a sleeve-like structure
  • the difference in the inner diameter between the second pipe section and the first pipe section is greater than the wall thickness of the pipe wall of the first pipe section.
  • It also includes a connecting pipe section disposed between the first pipe section and the second pipe section, and two ends of the connecting pipe section are respectively connected to the first pipe section and the second pipe section;
  • the inner diameter of the connecting pipe section gradually increases from the first pipe section to the second pipe section;
  • first pipe section, the second pipe section and the connecting pipe section are integrally formed.
  • plugging portion for plugging the drainage opening, the plugging portion is provided on an inner wall / outer wall of the connection of the first pipe section and the second pipe section;
  • the plugging portion is provided on an inner wall / outer wall of a connecting pipe section between the first pipe section and the second pipe section.
  • the plugging portion is an annular protrusion formed by the inner wall of the connecting pipe section extending inward,
  • the plugging portion is an annular protrusion formed by the outer wall of the connecting pipe section partially extending outward;
  • the thickness of the annular protrusion gradually becomes thinner along the extending direction thereof.
  • the first pipe section and / or the second pipe section has a deformation part, and when the first pipe section and / or the second pipe section are stressed, the deformation part deforms to cause the first pipe section and the second pipe section to deform;
  • the first pipe section and / or the second pipe section are both made of an elastic material
  • the first pipe section and / or the second pipe section has a corrugated pipe section
  • the deformation part is a corrugated pipe section of the first pipe section and / or the second pipe section.
  • a drainage valve includes a housing, a valve plug, and a valve plug stem installed in the housing and capable of telescopic movement relative to the housing.
  • the valve plug includes a first pipe section and a second pipe section which are connected to each other.
  • the first pipe section Can enter into the second pipe section /
  • the second pipe section can be sleeved outside the first pipe section to form a sleeve structure.
  • the second pipe section is sleeved at one end of the valve plug stem, and the second pipe section is far from the connection between the first pipe section and the second pipe section.
  • One end is connected to the housing, the first pipe section is arranged in the valve plug stem, and the end of the first pipe section far from the connection between the first pipe section and the second pipe section protrudes from the other end of the valve plug stem.
  • the connection between the first pipe section and the second pipe section is sealedly connected with the drainage port;
  • the housing has an internal cavity
  • the valve plug stem is disposed in the internal cavity and can be moved telescopically relative to the internal cavity.
  • the valve plug stem is a hollow rod
  • the second pipe section is sleeved on the outer wall of one end of the hollow rod.
  • the end of the second pipe section remote from the connection between the first pipe section and the second pipe section is connected to the inner wall of the inner cavity.
  • An opening is provided on the side wall of the other end of the hollow rod, and the first pipe section is disposed in the hollow cavity of the hollow rod. , An end of the first pipe section remote from the connection between the first pipe section and the second pipe section protrudes from the opening;
  • the inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section.
  • the valve plug further includes a plugging portion for plugging the drainage opening, the plugging portion is provided on an outer wall of a connection between the first pipe section and the second pipe section, and the second pipe section is sleeved on the valve plug stem.
  • the inner wall of the second pipe section is opposite to the outer wall of the valve plug stem, and the plugging portion faces the drain port,
  • the plugging portion is provided on an inner wall where the first pipe segment and the second pipe segment are connected, the second pipe segment is turned out and sleeved on the valve plug stem, the plugging part is turned out from the inside and out, and Towards the drain;
  • the drain valve includes a housing, a valve plug, and a valve plug stem installed in the housing and capable of moving telescopically relative to the housing.
  • the valve plug includes a first pipe section and a second pipe section connected to each other.
  • the second pipe section is sleeved on the valve plug stem, the inner wall of the second pipe section is opposite to the outer wall of one end of the valve plug stem, and the end of the second pipe section remote from the connection between the first pipe section and the second pipe section is connected to the housing,
  • the first pipe section is turned inward and extends into the valve plug stem, and forms a sleeve structure with the second pipe section.
  • One end of the first pipe section far from the connection between the first pipe section and the second pipe section extends from the other end of the valve plug stem.
  • the outer wall of the connection between the first pipe section and the second pipe section is opposite to the drainage opening;
  • a connecting pipe section is provided between the first pipe section and the second pipe section, and an outer wall of the connecting pipe section is provided with a plugging section, and the length of the first pipe section protruding into the valve plug stem is adjusted so that the plugging section is opposite to the drainage port.
  • a connecting pipe section is provided between the first pipe section and the second pipe section, and the plugging section is provided on the inner wall of the connecting pipe section.
  • the plugging section is turned out from the inside of the connecting pipe section and is opposite to the drainage opening. .
  • the present invention has the following beneficial effects compared with the prior art:
  • the valve plug is tubular.
  • the tubular valve plug is deformed into a sleeve structure, which solves the problem of difficult injection molding of the sleeve structure and is easy to process;
  • the first pipe section can extend into the second pipe section / the second pipe section can be sleeved outside the first pipe section to form a sleeve structure.
  • the washing water can be led out through the first pipe section, which is convenient for washing water.
  • the water quality and the liquid level of the washing bucket are detected.
  • the first pipe section isolates the washing water from the valve plug stem and other structures of the drain valve, which will not cause damage to the valve plug stem and other structures of the drain valve, which is safer and the service life of the drain valve. greatly increase;
  • the washing water is drawn from the first pipe section and sent to the detection device.
  • the inner diameter of the first pipe section is smaller than the inner diameter of the second pipe section, which reduces the amount of washing water drawn out, and also has a certain protective effect on the detection device;
  • the first pipe section, the second pipe section and the connecting pipe section are integrally formed, which solves the problem of poor sealing of the split valve plug, making the valve plug easy to process.
  • it When installing, it only needs to be deformed into a sleeve type structure. Yes, it solves the problem of difficult injection molding of the sleeve structure and is easy to use.
  • FIG. 2 is a schematic structural diagram of another valve plug according to the present invention.
  • FIG. 3 is a schematic structural diagram of a drain valve of the present invention.
  • FIG. 4 is an exploded view of the drain valve of FIG. 3 according to the present invention.
  • FIG. 5 is a method for installing the valve plug of FIG. 1 according to the present invention.
  • FIG. 6 is a method of installing the valve plug of FIG. 2 according to the present invention.
  • valve plug 101 In the picture: 100, valve plug 101, first pipe section 102, second pipe section 103, connecting pipe section 104, annular protrusion 105, corrugated pipe section 106, valve plug shell 107, valve plug stem 108, opening 109, outer barrel interface.
  • a valve plug of a drain valve includes a first pipe section 101 and a second pipe section 102 connected to each other.
  • the first pipe section 101 can extend into the second pipe section 102 / the second pipe section 102 can The sleeve is formed outside the first pipe section 101.
  • the sleeve-type structure is difficult to be integrally injection-molded.
  • the valve plug By designing the valve plug into a tubular structure including the first pipe section 101 and the second pipe section 102, the sleeve structure is formed by the deformation of the first pipe section 101 and the second pipe section 102, and the sleeve is solved. The problem of difficult injection molding of the tubular structure.
  • the first pipe section 101 can extend into the second pipe section 102 / the second pipe section 102 can be sleeved outside the first pipe section 101 to form a sleeve structure, and a water inlet is formed at the connection between the first pipe section 101 and the second pipe section 102.
  • the detection device can be a liquid level detection device and a water quality detection device to realize the washing water. Detection of water quality, liquid level and other parameters.
  • the valve plug 100 of the drain valve includes a first pipe section 101 and a second pipe section 102 connected to each other.
  • the structure is simple and easy to manufacture. When assembling, only the relative positions of the first pipe section 101 and the second pipe section 102 need to be deformed to obtain Sleeve-type valve plug 100, which is clever in design and simple in structure.
  • first pipe section 101 and the second pipe section 102 are integrally formed.
  • the problem of the poor sealing performance of the split valve plug is solved, and the valve plug is easy to process.
  • the inner diameter of the first pipe section 101 is smaller than the inner diameter of the second pipe section 102, and the first pipe section 101 can extend into the second pipe section 102 to form a sleeve-like structure.
  • the second pipe section 102 may be sleeved outside the first pipe section 101 to form a sleeve structure.
  • the inner diameter of the first pipe section 101 is smaller than the inner diameter of the second pipe section 102.
  • the first pipe section 101 with a smaller inner diameter can lead out a small amount of washing water to meet the detection requirements.
  • the difference between the inner diameters of the second pipe section 102 and the first pipe section 101 is greater than the wall thickness of the pipe wall of the first pipe section 101.
  • a further solution further includes a connecting pipe section 103 disposed between the first pipe section 101 and the second pipe section 102, and two ends of the connecting pipe section 103 are respectively connected to the first pipe section 101 and the second pipe section 102.
  • connection section is provided to reduce the stress concentration and extend the service life of the valve plug 100.
  • the inner diameter of the connecting pipe section 103 gradually increases from the first pipe section 101 to the second pipe section 102.
  • valve plug 100 further includes a plugging portion for plugging the drain opening, and the plugging portion is disposed on an inner wall / outer wall of the connection portion of the first pipe section 101 and the second pipe section 102.
  • the plugging portion By providing a plugging portion, when the drain port is blocked by the drain valve, the plugging portion is sealedly connected to the drain port, and the plugging effect is better.
  • the casing structure is formed differently, and the plugging portion may be provided on the inner wall where the first pipe section 101 and the second pipe section 102 are connected, or may be provided on the outer wall where the first pipe section 101 and the second pipe section 102 are connected. .
  • a connecting pipe section 103 is provided between the first pipe section 101 and the second pipe section 102, and the plugging portion is provided on the inner wall / outer wall of the connecting pipe section 103.
  • the plugging portion is an annular protrusion 104 formed by the inner wall of the connecting pipe section 103 extending partially inward.
  • the plugging portion may be an annular protrusion 104 formed by the outer wall of the connecting pipe section 103 extending partially outward.
  • the plugging portion is integrally formed with the connecting pipe section 103, which is convenient for manufacturing.
  • the thickness of the annular protrusion 104 becomes gradually thinner along the extending direction. This structure facilitates the positioning of the plugging part and the drainage port, and is more convenient to be inserted into the drainage port, so that the sealing effect of the valve plug 100 and the drainage port is better.
  • the first pipe segment 101 and / or the second pipe segment 102 have a deformation part.
  • the deformation part deforms to cause the first pipe segment 101 and the second pipe segment 102 to deform.
  • valve plug 100 Since the valve plug 100 is disposed on the valve stem and telescopically moves with the valve stem, the deformation of the first pipe section 101 and / or the second pipe section 102 makes the valve plug 100 easier to telescopically move with the valve stem.
  • first pipe section 101 and the second pipe section 102 are made of an elastic material.
  • the first pipe section 101 and the second pipe section 102 may also have a corrugated pipe section 105, and the deformation part is the corrugated pipe section 105 of the first pipe section 101 and / or the second pipe section 102.
  • this embodiment is a drain valve having the valve plug according to the first embodiment, and includes a housing, a valve plug 100, and a valve plug 100 rod installed in the housing and capable of telescopic movement relative to the housing.
  • the valve plug 100 includes a first pipe section 101 and a second pipe section 102 connected to each other.
  • the first pipe section 101 can extend into the second pipe section 102 / the second pipe section 102 can be sleeved outside the first pipe section 101 to form a sleeve type.
  • the second pipe section 102 is sleeved on one end of the valve plug 100 rod, the end of the second pipe section 102 far from the connection between the first pipe section 101 and the second pipe section 102 is connected to the housing, and the first pipe section 101 is provided on the valve plug 100 rod Inside, and the end of the first pipe section 101 far from the connection between the first pipe section 101 and the second pipe section 102 protrudes from the other end of the valve plug 100 rod, and when the valve plug 100 rod extends out of the housing, the first pipe section 101 and The connection point of the second pipe section 102 is hermetically connected to the drain.
  • the housing has an internal cavity
  • the valve plug 100 rod is arranged in the internal cavity and can be moved telescopically relative to the internal cavity.
  • the valve plug 100 rod is a hollow rod
  • the second pipe section 102 is set in the hollow.
  • On the outer wall of one end of the rod, the end of the second tube section 102 remote from the connection is connected to the inner wall of the inner cavity.
  • the side wall of the other end of the hollow rod is provided with an opening 108, and the first tube section 101 is disposed in the hollow cavity of the hollow rod. An end of the first pipe section 101 remote from the connection portion protrudes from the opening 108.
  • the inner diameter of the first pipe section 101 is smaller than the inner diameter of the second pipe section 102.
  • valve plug 100 further includes a plugging portion for plugging the drainage opening, and the plugging portion is disposed on an outer wall of the connection between the first pipe section 101 and the second pipe section 102, and the second pipe section 102 is sleeved.
  • the inner wall of the second pipe section 102 is opposite to the outer wall of the stem of the valve plug 100, and the plugging portion faces the drain.
  • a connecting pipe section 103 is provided between the first pipe section 101 and the second pipe section 102, and the plugging portion is provided on the outer wall of the connecting pipe section 103.
  • the inner wall of the second pipe section 102 is in contact with the outer wall of one end of the stem of the valve plug 100, and the second pipe section 102 is sleeved on the stem of the valve plug 100.
  • the second pipe section 102 is far from the connection between the first pipe section 101 and the second pipe section 102.
  • One end is connected to the shell, and the first pipe section 101 is turned inward and extends into the valve plug 100 rod, and forms a sleeve structure with the second pipe section 102.
  • the first pipe section 101 is far from the first pipe section 101 and the second pipe section 102.
  • One end of the connection portion protrudes from the other end of the stem of the valve plug 100, and the outer wall of the connection portion of the first pipe section 101 and the second pipe section 102 is opposite to the drainage port.
  • a connecting pipe section 103 is provided between the first pipe section 101 and the second pipe section 102.
  • An outer wall of the connecting pipe section 103 is provided with a blocking part.
  • the plugging portion is provided on an inner wall where the first pipe section 101 and the second pipe section 102 are connected, and the second pipe section 102 is turned over on the valve plug 100 rod.
  • the outer wall of the two pipe sections 102 is opposite to the outer wall of the stem of the valve plug 100, and the plugging portion is turned out from the inside and faces the drain.
  • a connecting pipe section 103 is provided between the first pipe section 101 and the second pipe section 102, and the plugging portion is provided on the inner wall of the connecting pipe section 103.
  • first pipe segment 101 Extend the first pipe segment 101 from one end of the stem of the valve plug 100 and pass through the other end of the stem of the valve plug 100, and then turn the second pipe segment 102 over and cover the outer wall of the stem of the valve plug 100
  • the first pipe section 101 and the first pipe section 101 form a sleeve structure, and the end of the second pipe section 102 far from the connection between the first pipe section 101 and the second pipe section 102 is connected to the shell, and the first pipe section 101 and the second pipe section 102
  • the inner wall of the joint is opposite to the drain.
  • a connecting pipe section 103 is provided between the first pipe section 101 and the second pipe section 102, and the plugging section is provided on the inner wall of the connecting pipe section 103.
  • the plugging section is turned out from the inside of the connecting pipe section. And opposite to the drain.
  • the drain valve includes a housing, a valve plug 100, and a valve plug 100 rod installed in the housing and capable of telescopically moving relative to the housing.
  • the housing includes a valve plug housing 106 and a bucket interface 109 assembled therewith.
  • the washing machine includes an inner tub that can hold water during washing and an outer tub disposed outside the inner tub. The height of the outer tub is smaller than the height of the inner tub.
  • the outer tub is provided with a mounting port, the outer tub interface 109 passes through the mounting port, and the valve plug housing 106 is assembled with the outer tub.
  • the valve plug 100 includes a first pipe section 101, a second pipe section 102, and a connecting pipe section 103.
  • One end of the connecting pipe section 103 is connected to one end of the first pipe section 101, and the other end of the connecting pipe section 103 is connected to one end of the second pipe section 102.
  • the other end of 101 and the other end of the second pipe section 102 are both suspended.
  • the first pipe section 101, the connecting pipe section 103 and the second pipe section 102 are preferably integrally formed.
  • the inner diameter of the first pipe section 101 is smaller than the inner diameter of the second pipe section 102.
  • the outer wall of the connecting pipe segment 103 partially protrudes outward to form an annular protrusion 104, and the thickness of the annular protrusion 104 gradually decreases away from the central axis of the connecting pipe segment 103 to form a truncated cone structure.
  • Corrugated pipe sections 105 are provided in the middle of the first pipe section 101 and the second pipe section 102. When the first pipe section 101 and the second pipe section 102 are stressed, the corrugated pipe section 105 is deformed and the first pipe section 101 and the second pipe section 102 are deformed.
  • the stem of the valve plug 100 is a hollow rod, and the housing has an internal cavity.
  • the hollow rod is disposed in the internal cavity of the housing and can be telescopically moved relative to the housing.
  • the second pipe section 102 of the valve plug 100 is sleeved on the outer wall of one end of the hollow rod.
  • the inner wall of the second pipe section 102 is opposite to the outer wall of the valve plug 100 rod.
  • the suspended end of the second pipe section 102 is tightly connected to the inner wall of the inner cavity of the housing.
  • the first pipe section 101 is provided in the hollow rod and the other end of the hollow rod is provided.
  • the other end of the hollow rod is connected to a driving device, and the driving device drives the hollow rod to telescopically move in the housing.
  • the driving device may be a driving motor.
  • the installation method of the drain valve the hollow rod is extended into the inner cavity of the housing, the second pipe section 102 is sleeved on the outer wall of one end of the hollow rod, and the suspended end of the second pipe section 102 is sealed with the inner wall of the housing. Connect, and then invert the first pipe section 101 and extend into the hollow rod. The suspended end of the first pipe section 101 protrudes from the opening 108 on the other end of the hollow rod. Adjust the first pipe section 101 and the second pipe section 102 to make the ring convex.
  • the riser 104 is opposite to the end of the stem of the valve plug 100, and the other end of the hollow stem is connected to the driving device.
  • the driving device drives the hollow rod to telescopically move relative to the casing.
  • the valve plug 100 rod extends out of the casing, the corrugated tube section 105 of the first and second pipe sections 101 and 102 undergoes elastic deformation, and the valve plug 100 follows the hollow rod.
  • the plugging part is hermetically connected to the drain port, and the drain port is blocked.
  • the outer wall of the first pipe section becomes the inner wall of the inner pipe of the casing structure, and the inner wall of the first pipe section becomes the inner pipe of the casing structure.
  • the outer wall realizes the conversion from a tubular valve plug to a sleeve valve plug.
  • the plugging portion is an annular protrusion 104 formed by the inner wall of the connecting pipe section 103 extending partially inward.
  • the outer wall of the second pipe section becomes the inner wall of the outer casing tube of the sleeve type structure during injection, and the inner wall of the second pipe section becomes the outer wall of the outer casing tube of the sleeve type structure to connect the pipe sections.
  • the blocking portion on the inner side of the valve is opposite to the drainage port with turning, and the conversion from the tubular valve plug to the sleeve valve plug is realized.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)

Abstract

一种排水阀的阀塞（100）、排水阀及安装方法，所述阀塞（100）包括相互连接的第一管段（101）和第二管段（102），所述第一管段（101）可伸入第二管段（102）内/第二管段（102）可套在第一管段（101）外形成套管式结构。该阀塞（100）为管状，管状的阀塞（100）通过变形成为套管式结构，解决了套管式结构注塑困难的问题；该阀塞（100）一体成型，解决了分体式阀塞（100）密封性不好的问题；阀塞（100）将排水口封堵时，洗涤水可经第一管段（101）引出，便于对水位、水质等进行检测，而且第一管段（101）将洗涤水与排水阀的阀塞杆（107）等结构隔离，不会对排水阀的阀塞杆（107）等结构造成损坏，更加安全，排水阀的使用寿命大大增加。

Description

一种排水阀的阀塞、排水阀及安装方法 技术领域
本发明属于洗衣机领域，具体地说，涉及一种排水阀的阀塞、排水阀及安装方法。
背景技术
目前，为了节省水资源，洗衣机越来越多的采用无孔式内桶的方式，洗涤时内桶、外桶之间无存水，内桶为洗涤桶，外桶为排水桶，内、外桶之间连通，现有的无孔内桶波轮洗衣机，由于结构的限制，水位、水质等参数的检测难以实现。
CN106702662A-一种桶间无水洗衣机及控制方法，所述洗衣机包括外桶、内桶、气室和与气室连接的压力传感器，所述内桶的上部靠近边缘设有多个甩水孔，内桶的底部设有至少一个内桶排水口，外桶底部设有能封堵内桶排水口的伸缩式排水阀，外桶底部设有外桶排水口，所述外桶排水口设有洗衣机排水管路，外桶上设置与内桶连通的气室，气室设有能将气室中的水排出的气室排水口。该伸缩式排水阀的阀杆为中空结构，洗涤水可从该伸缩结构的中空部位引出，通过排水管路引至检测装置进行检测。阀杆为两段，洗涤水过脏或者长期使用时，容易造成连接处的阻塞，驱动装置的输出功率增加，长期使用，驱动装置容易损坏。
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，提供一种排水阀的阀塞、排水阀及安装方法，该阀塞为管状，管状的阀塞通过变形成为套管式结构，解决了套管式结构注塑困难的问题；该阀塞一体成型，解决了分体式阀塞密封性不好的问题；阀塞将排水口封堵时，洗涤水可经第一管段引出，便于对洗涤水的水质、水位等进行检测，而且第一管段将洗涤水与排水阀的阀塞杆等结构隔离，不会对排水阀的阀塞杆等结构造成损坏，更加安全，排水阀的使用寿命大大增加。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种排水阀的阀塞，包括相互连接的第一管段和第二管段，所述第一管段可伸入第二管段内/第二管段可套在第一管段外形成套管式结构。
所述第一管段的内径小于第二管段的内径，所述第一管段可伸入第二管段内形成套管式结构；
或者，所述第二管段可套在第一管段外形成套管式结构；
优选地，第二管段和第一管段的内径差大于所述第一管段管壁的壁厚。
还包括设置在第一管段和第二管段之间的连接管段，连接管段的两端分别与第一管段和第二管段连接；
优选地，所述连接管段的内径从第一管段向第二管段方向逐渐增加；
更优选地，所述第一管段、第二管段和连接管段一体成型。
还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段和第二管段的连接处的内壁/外壁上；
优选地，所述封堵部设置第一管段和第二管段之间的连接管段的内壁/外壁上。
封堵部为所述连接管段的内壁局部向内延伸形成的环形凸起，
或者，封堵部为所述连接管段的外壁局部向外延伸形成的环形凸起；
优选地，所述环形凸起的厚度沿其延伸方向逐渐变薄。
第一管段和/或第二管段具有形变部，第一管段和/或第二管段受力时，形变部发生形变使第一管段和第二管段发生形变；
优选地，所述第一管段和/或第二管段均由弹性材质制成，
或者，第一管段和/或第二管段具有波纹管段，所述形变部为第一管段和/或第二管段的波纹管段。
一种排水阀，包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，所述第一管段可伸入第二管段内/第二管段可套在第一管段外形成套管式结构，第二管段套在阀塞杆的一端，第二管段上远离第一管段和第二管段的连接处的一端与壳体相连，第一管段设置在阀塞杆内，第一管段上远离第一管段和第二管段连接处的一端从阀塞杆的另一端伸出，阀塞杆伸出壳体时，所述第一管段和第二管段的连接处与排水口密封连接；
优选地，所述壳体具有内腔，所述阀塞杆设置在内腔内，并可相对于内腔伸缩移动，所述阀塞杆为中空杆，第二管段套在中空杆一端的外壁上，第二管段上远离第一管段和第二管段的连接处的一端与内腔的内壁连接，中空杆的另一端的侧壁上设有开口，第一管段设置在中空杆的中空腔内，第一管段上远离第一管段和第二管段的连接处的一端从开口伸出；
更优选地，所述第一管段的内径小于第二管段的内径。
所述阀塞还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段和第二管段的连接处的外壁上，第二管段套在阀塞杆上，所述第二管段的内壁与阀塞杆的外壁相对，所述封堵部朝向所述排水口，
或者，所述封堵部设置在第一管段和第二管段的连接处的内壁上，所述第二管段外翻并套在阀塞杆上，所述封堵部自内而外翻出并朝向所述排水口；
优选地，第一管段和第二管段之间设有连接管段，所述封堵部设置连接管段的内壁/外壁上。
一种排水阀的安装方法，排水阀包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，
将所述第二管段套在所述阀塞杆上，第二管段的内壁与阀塞杆一端的外壁相对，第二管段上远离第一管段和第二管段连接处的一端与壳体连接，再将第一管段内翻并伸入阀塞杆内，并与第二管段形成套管式结构，第一管段上远离第一管段和第二管段连接处的一端从阀塞杆的另一端伸出，第一管段和第二管段的连接处的外壁与排水口相对；
优选地，第一管段和第二管段之间设置连接管段，连接管段的外壁上设有封堵部，调整第一管段伸入阀塞杆内的长度，使封堵部与排水口相对。
一种排水阀的安装方法，排水阀包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，
将所述第一管段从阀塞杆的一端伸入，并从阀塞杆的另一端穿出，再将所述第二管段外翻并套在所述阀塞杆的外壁上，并与第一管段形成套管式结构，将所述第二管段上远离第一管段和第二管段连接处的一端与壳体连接，第一管段和第二管段的连接处的内壁与排水口相对；
优选地，第一管段和第二管段之间设置连接管段，所述封堵部设置在连接管段的内壁上，装配时，所述封堵部自连接管段的内部翻出，并与排水口相对。
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：
1、该阀塞为管状，将管状的阀塞通过变形成为套管式结构，解决了套管式结构注塑困难的问题，便于加工；
2、第一管段可伸入第二管段内/第二管段可套在第一管段外形成套管式结构，阀塞将排水口封堵时，洗涤水可经第一管段引出，便于对洗涤水的水质、洗涤桶的液位进行检测，第一管段将洗涤水与排水阀的阀塞杆等结构隔离，不会对排水阀的阀塞杆等结构造成损坏，更 加安全，排水阀的使用寿命大大增加；
3、洗涤水从第一管段内引出并输送至检测装置，第一管段的内径小于第二管段的内径，减少洗涤水的引出量，同时对检测装置也具有一定的保护作用；
4、所述第一管段、第二管段和连接管段一体成型，解决了分体式阀塞密封性不好的问题，使阀塞便于加工，安装时，只需将其变形为套管式结构即可，解决了套管式结构注塑困难的问题，使用方便。
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是本发明一种阀塞结构示意图；
图2是本发明另一种阀塞结构示意图；
图3是本发明排水阀结构示意图；
图4是本发明图3的排水阀爆炸示意图；
图5是本发明图1的阀塞的安装方法；
图6是本发明图2的阀塞的安装方法。
图中：100、阀塞 101、第一管段 102、第二管段 103、连接管段 104、环形凸起 105、波纹管段 106、阀塞外壳 107、阀塞杆 108、开口 109、外桶接口。
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。
实施例一
如图1-2所示，一种排水阀的阀塞，包括相互连接的第一管段101和第二管段102，所 述第一管段101可伸入第二管段102内/第二管段102可套在第一管段101外形成套管式结构。
套管式结构一体注塑成型困难，通过将阀塞设计成包含第一管段101和第二管段102的管状结构，通过第一管段101和第二管段102的变形形成套管式结构，解决了套管式结构注塑困难的问题。
所述第一管段101可伸入第二管段102内/第二管段102可套在第一管段101外形成套管式结构，第一管段101和第二管段102的连接处形成了进水口，采用该阀塞100将排水口封堵时，洗涤水可从进水口进入第一管段101，该部分水可以引流至检测装置内，检测装置可以是液位检测装置、水质检测装置，实现对洗涤水的水质、液位等参数的检测。
排水阀的阀塞100包括相互连接的第一管段101和第二管段102，结构简单，便于制造，在装配时，只需将第一管段101和第二管段102的相对位置进行变形即可得到套管式的阀塞100，该阀塞100设计巧妙，结构简单。
进一步地，第一管段101和第二管段102一体成型。解决了分体式阀塞密封性不好的问题，使阀塞便于加工。
进一步的方案，所述第一管段101的内径小于第二管段102的内径，所述第一管段101可伸入第二管段102内形成套管式结构。
也可以是，所述第二管段102可套在第一管段101外形成套管式结构。
第一管段101的内径小于第二管段102的内径，内径较小的第一管段101将少量洗涤水引出即可满足检测要求。
进一步的方案，第二管段102和第一管段101的内径差大于所述第一管段101管壁的壁厚。
进一步的方案，还包括设置在第一管段101和第二管段102之间的连接管段103，连接管段103的两端分别与第一管段101和第二管段102连接。
当第一管段101和第二管段102的内径不同时，通过设置连接段，减少应力集中，能够延长阀塞100的使用寿命。
最好是，所述连接管段103的内径从第一管段101向第二管段102方向逐渐增加。
进一步的方案，阀塞100还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段101和第二管段102的连接处的内壁/外壁上。
通过设置封堵部，在排水阀将排水口封堵时，封堵部与排水口密封连接，封堵效果更好。 套管式结构的形成方式不同，封堵部可以设置在第一管段101和第二管段102的连接处的内壁上，也可以设置在第一管段101和第二管段102的连接处的外壁上。
进一步的方案，第一管段101和第二管段102之间设置连接管段103，所述封堵部设置连接管段103的内壁/外壁上。
进一步的方案，封堵部为所述连接管段103的内壁局部向内延伸形成的环形凸起104。
也可以是，封堵部为所述连接管段103的外壁局部向外延伸形成的环形凸起104。
封堵部与连接管段103一体形成，便于制造。
进一步的方案，所述环形凸起104的厚度沿延伸方向逐渐变薄。该结构便于封堵部与排水口的定位，而且更便于插入排水口内，使阀塞100与排水口的密封效果更好。
进一步的方案，第一管段101和/或第二管段102具有形变部，第一管段101和第二管段102受力时，形变部发生形变使第一管段101和第二管段102发生形变。
由于阀塞100设置在阀杆上并随阀杆伸缩移动，通过在第一管段101和/或第二管段102上设置形变部，使阀塞100更易随阀杆伸缩移动。
进一步的方案，所述第一管段101和第二管段102均由弹性材质制成。
第一管段101和第二管段102也可以具有波纹管段105，所述形变部为第一管段101和/或第二管段102的波纹管段105。
实施例二
如图1-4所示，本实施例为具有实施例一所述的阀塞的排水阀，包括壳体、阀塞100和安装在壳体内并可相对于壳体伸缩移动的阀塞100杆，所述阀塞100包括相互连接的第一管段101和第二管段102，所述第一管段101可伸入第二管段102内/第二管段102可套在第一管段101外形成套管式结构，第二管段102套在阀塞100杆的一端，第二管段102上远离第一管段101和第二管段102的连接处的一端与壳体相连，第一管段101设置在阀塞100杆内，且第一管段101上远离第一管段101和第二管段102连接处的一端从阀塞100杆的另一端伸出，阀塞100杆伸出壳体时，所述第一管段101和第二管段102的连接处与排水口密封连接。
进一步的方案，所述壳体具有内腔，所述阀塞100杆设置在内腔内，并可相对于内腔伸缩移动，所述阀塞100杆为中空杆，第二管段102套在中空杆一端的外壁上，第二管段102上远离连接处的一端与内腔的内壁连接，中空杆的另一端的侧壁上设有开口108，第一管段101设置在中空杆的中空腔内，第一管段101上远离连接处的一端从开口108伸出。
最好是，所述第一管段101的内径小于第二管段102的内径。
进一步的方案，所述阀塞100还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段101和第二管段102的连接处的外壁上，第二管段102套在阀塞100杆上，所述第二管段102的内壁与阀塞100杆的外壁相对，所述封堵部朝向所述排水口。
如图5所示，方案一，第一管段101和第二管段102之间设有连接管段103，所述封堵部设置连接管段103的外壁上。
该排水阀的安装方法:
第二管段102的内壁与阀塞100杆一端的外壁接触将所述第二管段102套在所述阀塞100杆上，第二管段102上远离第一管段101和第二管段102连接处的一端与壳体连接，再将第一管段101内翻并伸入阀塞100杆内，并与第二管段102形成套管式结构，第一管段101上远离第一管段101和第二管段102连接处的一端从阀塞100杆的另一端伸出，第一管段101和第二管段102的连接处的外壁与排水口相对。
进一步的方案，第一管段101和第二管段102之间设置连接管段103，连接管段103的外壁上设有封堵部，安装时，调整第一管段101伸入阀塞杆内的长度，使封堵部与排水口相对。
如图6所示，方案二，所述封堵部设置在第一管段101和第二管段102的连接处的内壁上，所述第二管段102外翻套在阀塞100杆上，原第二管段102的外壁与阀塞100杆的外壁相对，所述封堵部自内而外翻出并朝向所述排水口。
进一步的方案，第一管段101和第二管段102之间设有连接管段103，所述封堵部设置连接管段103的内壁上。
安装方法：
将所述第一管段101从阀塞100杆的一端伸入，并从阀塞100杆的另一端穿出，再将所述第二管段102外翻并套在所述阀塞100杆的外壁上，并与第一管段101形成套管式结构，将所述第二管段102上远离第一管段101和第二管段102连接处的一端与壳体连接，第一管段101和第二管段102的连接处的内壁与排水口相对。
进一步的方案，第一管段101和第二管段102之间设置连接管段103，所述封堵部设置在连接管段103的内壁上，装配时，所述封堵部自连接管段的内部翻出，并与排水口相对。
实施例三
如图3,5所示，本实施例为实施例二的一种具体方案，排水阀包括壳体、阀塞100和安 装在壳体内并可相对于壳体伸缩移动的阀塞100杆。壳体包括阀塞外壳106和与其装配的外桶接口109。洗衣机包括洗涤时可盛水的内桶和设置与内桶外的外桶，所述外桶的桶高小于所述内桶的桶高。所述外桶上设有安装口，所述外桶接口109穿过所述安装口，所述阀塞外壳106与外桶装配。
阀塞100包括第一管段101、第二管段102和连接管段103，连接管段103的一端与第一管段101的一端连接，连接管段103的另一端与第二管段102的一端连接，第一管段101的另一端和第二管段102的另一端均悬空。第一管段101、连接管段103和第二管段102最好是一体成型。
第一管段101的内径小于第二管段102的内径。连接管段103的外壁局部向外凸出形成环形凸起104，环形凸起104的厚度向远离连接管段103的中轴线方向逐渐减小，形成圆锥台结构。
第一管段101和第二管段102的中部具有波纹管段105，第一管段101和第二管段102受力时，波纹管段105发生形变使第一管段101和第二管段102发生形变。
阀塞100杆为中空杆，壳体具有内腔，中空杆设置在壳体的内腔内，并可相对于壳体伸缩移动，阀塞100的第二管段102套在中空杆一端的外壁上，第二管段102的内壁与阀塞100杆的外壁相对，第二管段102的悬空端与壳体的内腔的内壁密封连接，第一管段101设置在中空杆内，中空杆的另一端设有开口108，第一管段101的悬空端自开口108内穿出，环形凸起104与阀塞100杆的端部相对。中空杆的另一端与驱动装置连接，驱动装置驱动中空杆在壳体内伸缩移动。驱动装置可以是驱动电机。
该排水阀的安装方法：将中空杆伸入壳体的内腔内，第二管段102套在所述中空杆的一端的外壁上，第二管段102的悬空端与壳体的内腔内壁密封连接，再将第一管段101内翻并伸入中空杆内，第一管段101的悬空端从中空杆的另一端的开口108伸出，调整第一管段101和第二管段102，使环形凸起104与阀塞100杆的端部相对，中空杆的另一端与驱动装置连接。
所述驱动装置驱动中空杆相对于壳体伸缩移动，阀塞100杆伸出壳体时，第一管段101和第二管段102的波纹管段105发生弹性形变，阀塞100随所述的中空杆移动，封堵部与排水口密封连接，将排水口封堵。
通过将第一管段向下并伸入第二套管内，使注塑时的第一管段的外壁变为套管式结构的内管的内壁，第一管段的内壁变为套管式结构的内管的外壁，实现管状的阀塞到套管式阀塞 的转化。
实施例四
如图3,6所示，本实施例与实施例三的区别在于，封堵部为连接管段103的内壁局部向内延伸形成的环形凸起104。
安装方法：
将中空杆伸入壳体的内腔内，将所述第一管段101上远离环形凸起104的一端伸入中空杆内并从中空杆的开口108伸出，再将所述第二管段102外翻并套在所述中空杆的外壁上，原第二管段102的外壁与中空杆的外壁相对，并将所述第二管段102上远离第一管段101和第二管段102连接处的一端与壳体连接，调整第一管段101和第二管段102，使环形凸起104与阀塞100杆的端部相对，中空杆的另一端与驱动装置连接。
通过将第二管段向下翻折，使注塑时的第二管段的外壁变为成套管式结构的外套管的内壁，第二管段的内壁变为成套管式结构的外套管的外壁，连接管段的内侧的封堵部随翻折而与排水口相对，实现管状的阀塞到套管式阀塞的转化。
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 (10)

  1. 一种排水阀的阀塞，其特征在于：包括相互连接的第一管段和第二管段，所述第一管段可伸入第二管段内/第二管段可套在第一管段外形成套管式结构。
  2. 根据权利要求1所述一种排水阀的阀塞，其特征在于：所述第一管段的内径小于第二管段的内径，所述第一管段可伸入第二管段内形成套管式结构；
    或者，所述第二管段可套在第一管段外形成套管式结构；
    优选地，第二管段和第一管段的内径差大于所述第一管段管壁的壁厚。
  3. 根据权利要求2所述一种排水阀的阀塞，其特征在于：还包括设置在第一管段和第二管段之间的连接管段，连接管段的两端分别与第一管段和第二管段连接；
    优选地，所述连接管段的内径从第一管段向第二管段方向逐渐增加；
    更优选地，所述第一管段、第二管段和连接管段一体成型。
  4. 根据权利要求1-3任一所述一种排水阀的阀塞，其特征在于：还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段和第二管段的连接处的内壁/外壁上；
    优选地，所述封堵部设置第一管段和第二管段之间的连接管段的内壁/外壁上。
  5. 根据权利要求4所述一种排水阀的阀塞，其特征在于：封堵部为所述连接管段的内壁局部向内延伸形成的环形凸起，
    或者，封堵部为所述连接管段的外壁局部向外延伸形成的环形凸起；
    优选地，所述环形凸起的厚度沿其延伸方向逐渐变薄。
  6. 根据权利要求4所述一种排水阀的阀塞，其特征在于：第一管段和/或第二管段具有形变部，第一管段和/或第二管段受力时，形变部发生形变使第一管段和第二管段发生形变；
    优选地，所述第一管段和/或第二管段均由弹性材质制成，
    或者，第一管段和/或第二管段具有波纹管段，所述形变部为第一管段和/或第二管段的波纹管段。
  7. 一种排水阀，其特征在于：包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，所述第一管段可伸入第二管段内/第二管段可套在第一管段外形成套管式结构，第二管段套在阀塞杆的一端，第二管段上远离第一管段和第二管段的连接处的一端与壳体相连，第一管段设置在阀塞杆内，第一管段上远离第一管段和第二管段连接处的一端从阀塞杆的另一端伸出，阀塞杆伸出壳体时，所述第一管段和第二管段的连接处与排水口密封连接；
    优选地，所述壳体具有内腔，所述阀塞杆设置在内腔内，并可相对于内腔伸缩移动，所述阀塞杆为中空杆，第二管段套在中空杆一端的外壁上，第二管段上远离第一管段和第二管段的连接处的一端与内腔的内壁连接，中空杆的另一端的侧壁上设有开口，第一管段设置在中空杆的中空腔内，第一管段上远离第一管段和第二管段的连接处的一端从开口伸出；
    更优选地，所述第一管段的内径小于第二管段的内径。
  8. 根据权利要求7所述一种排水阀，其特征在于：所述阀塞还包括用于封堵排水口的封堵部，所述封堵部设置在第一管段和第二管段的连接处的外壁上，第二管段套在阀塞杆上，所述第二管段的内壁与阀塞杆的外壁相对，所述封堵部朝向所述排水口，
    或者，所述封堵部设置在第一管段和第二管段的连接处的内壁上，所述第二管段外翻并套在阀塞杆上，所述封堵部自内而外翻出并朝向所述排水口；
    优选地，第一管段和第二管段之间设有连接管段，所述封堵部设置连接管段的内壁/外壁上。
  9. 一种排水阀的安装方法，其特征在于，排水阀包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，
    将所述第二管段套在所述阀塞杆上，第二管段的内壁与阀塞杆一端的外壁相对，第二管段上远离第一管段和第二管段连接处的一端与壳体连接，再将第一管段内翻并伸入阀塞杆内，并与第二管段形成套管式结构，第一管段上远离第一管段和第二管段连接处的一端从阀塞杆的另一端伸出，第一管段和第二管段的连接处的外壁与排水口相对；
    优选地，第一管段和第二管段之间设置连接管段，连接管段的外壁上设有封堵部，调整第一管段伸入阀塞杆内的长度，使封堵部与排水口相对。
  10. 一种排水阀的安装方法，其特征在于，排水阀包括壳体、阀塞和安装在壳体内并可相对于壳体伸缩移动的阀塞杆，所述阀塞包括相互连接的第一管段和第二管段，
    将所述第一管段从阀塞杆的一端伸入，并从阀塞杆的另一端穿出，再将所述第二管段外翻并套在所述阀塞杆的外壁上，并与第一管段形成套管式结构，将所述第二管段上远离第一管段和第二管段连接处的一端与壳体连接，第一管段和第二管段的连接处的内壁与排水口相对；
    优选地，第一管段和第二管段之间设置连接管段，所述封堵部设置在连接管段的内壁上，装配时，所述封堵部自连接管段的内部翻出，并与排水口相对。
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