WO2020052508A1 - 一种添加剂自动投放装置 - Google Patents

一种添加剂自动投放装置 Download PDF

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Publication number
WO2020052508A1
WO2020052508A1 PCT/CN2019/104851 CN2019104851W WO2020052508A1 WO 2020052508 A1 WO2020052508 A1 WO 2020052508A1 CN 2019104851 W CN2019104851 W CN 2019104851W WO 2020052508 A1 WO2020052508 A1 WO 2020052508A1
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WO
WIPO (PCT)
Prior art keywords
storage box
liquid storage
liquid
additive
valve
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Application number
PCT/CN2019/104851
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English (en)
French (fr)
Inventor
黄涛
蒋玉亮
Original Assignee
青岛海尔滚筒洗衣机有限公司
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Application filed by 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to US17/275,090 priority Critical patent/US11851801B2/en
Publication of WO2020052508A1 publication Critical patent/WO2020052508A1/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 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/42—Detergent or additive supply
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F39/088—Liquid supply arrangements

Definitions

  • the invention belongs to the field of washing equipment, and in particular relates to an automatic adding device for additives.
  • the detergent used in the conventional washing machine is separated from the washing machine. There is no detergent adding device on the washing machine. The detergent cannot be added automatically. This structure cannot realize the automatic washing control process of the washing machine.
  • most washing machines are set to connect a detergent box containing detergent or / and softener with a water inlet pipe, and the detergent or / and softener in the detergent box is flushed into the washing tub through the water inlet.
  • this structure must first put detergent or / and softener into the detergent box each time it is washed, and it also does not implement a fully automatic laundry control process.
  • Chinese patent application number CN97208723.0 discloses a washing machine detergent adding device.
  • the washing machine cabinet is provided with a cavity matching a bottle.
  • the bottom of the cavity is a conical through hole.
  • a vertical fixing piece is fixed on the through hole.
  • the vertical fixing piece fixes the washing liquid conduit.
  • the bottle body is matched with the cavity.
  • a conical introduction tube is provided on the bottle mouth. Breath. This structure cannot control the amount of detergent to be added, and is easily damaged to waste the detergent.
  • Cipheral patent application number CN99101767.6 discloses a washing machine capable of automatically adding liquid detergent, including: a washing tub, a detergent box, a valve for opening / closing the adding channel, and a hole added from the bottom of the detergent box The amount of detergent added to the washing tub is controlled by a valve, and a sensor for measuring the amount of detergent is provided in the detergent. This structure directly drains the undiluted detergent into the washing tub, which will damage the laundry.
  • Chinese Patent Application No. CN200610136059.9 discloses a detergent supply device for a washing machine with a detergent box having a siphon unit.
  • the detergent is injected into the detergent box, and the washing water is injected into the detergent box. After dilution, drain from the siphon unit into the washing tub.
  • the invention solves the problem that the thick detergent directly enters the washing tub and damages the laundry, but cannot accurately control the automatic additives of the detergent.
  • Chinese patent application number CN200910250314.6 previously applied by the applicant discloses a laundry method and washing machine using negative pressure to automatically add detergent, the washing machine includes a water inlet, a detergent container and a washing tub, a water inlet and a washing tub There are two water inlet channels between the main water inlet and the washing water channel. There is a fixed volume container between the washing water channel and the washing bucket. The constant volume container is connected to the detergent container. A venturi tube is set in the main water inlet. The main inlet water flow uses the Venturi effect principle. The water flow is changed from coarse to thin to accelerate the water flow velocity, so that a relatively vacuum zone is formed on the rear side of the venturi tube outlet. The relative vacuum zone communicates with the constant volume container, making the constant volume container.
  • a negative pressure is generated, and the detergent in the detergent container connected to the constant volume container is pumped into the constant volume container.
  • a control valve corresponding to the detergent container is provided in the washing water path, and when the control valve controls the communication path, it simultaneously controls the sealing between the corresponding constant volume container and the detergent container, and vice versa.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide an automatic additive adding device with simple structure, convenient control and low cost.
  • An automatic additive dropping device includes:
  • Liquid storage box which stores liquid additives inside
  • the metering chamber is in communication with the liquid storage box and measures the added dose entering the chamber;
  • Additive extraction unit which extracts the additives in the liquid storage box into the measuring chamber
  • a unidirectional passage is arranged between the measuring chamber and the liquid storage box, and the unidirectional passage flows from the liquid storage box to the measuring chamber.
  • liquid-conducting pipeline between the measuring chamber and the liquid storage box, and the liquid-conducting pipeline is provided with a unidirectional flow from the liquid storage box to the measuring chamber. valve.
  • the metering chamber and the liquid storage box are provided with a cut-off structure which is in contact with each other and separated and closed,
  • the cut-off structure is provided at the end where the two lines are connected.
  • One of the liquid-conducting lines is provided with a self-storing box. Non-return valve flowing to the metering chamber.
  • a liquid guiding tube is provided between the measuring chamber and the liquid storage box, one end of the liquid guiding tube is in communication with the measuring chamber, and the liquid storage box is provided with a mounting hole at a position corresponding to the other end of the liquid guiding tube.
  • a shut-off valve is provided to control the internal and external opening and closing of the liquid storage box.
  • the other end of the liquid guide tube corresponding to the liquid storage box is provided with a push rod.
  • the shut-off valve includes a valve chamber and a liquid outlet provided in the installation hole, the valve chamber is communicated with the liquid outlet and the inside of the liquid storage box, a spring is arranged in the valve chamber, and the liquid is blocked by the spring return movement.
  • the push rod against the valve core leaves the liquid outlet to realize the communication between the liquid tube and the valve chamber and the inside of the liquid storage box.
  • the spring return movement spool plugs the liquid outlet to achieve the cut-off of the inside and outside of the liquid storage box;
  • the valve chamber communicates with the inside of the liquid storage box through a suction pipe, one end of the suction pipe communicates with the valve room, and the other end extends to the lowest position inside the liquid storage box.
  • the metering chamber is a constant volume container having a function of measuring an added dose
  • the metering chamber is provided with a liquid metering valve for measuring the added dose.
  • the additive extraction unit includes a venturi tube, the venturi tube is provided on the main water inlet path, and a negative pressure pumping line is provided between the venturi tube suction negative pressure port and the metering chamber.
  • a floating ball valve is provided in the negative pressure pumping line.
  • the flushing waterway includes:
  • Water inlet channel control the introduction of water into the metering chamber
  • the additive extraction unit pumps the additive and flushing water into the metering chamber to discharge
  • the invention has made great improvements in the field of automatic addition of additives.
  • the additives can be accurately and automatically added.
  • the additive extraction unit can be used to quantitatively extract the additives and then discharge the quantitative additives by the flushing water channel.
  • the simple structure can not only prevent the occurrence of too little or too much artificially added additives, but also save the cost of using other complicated automatic additive structure, and thus reduce the environmental pollution caused by the discharged washing water.
  • the automation of the laundry process improves the efficiency of the laundry.
  • by setting a simple one-way path between the liquid storage box and the measuring chamber it is possible to avoid introducing flushing water into the liquid storage box during the process of flushing the measuring chamber.
  • the structure is simple, and the control sequence of automatic dispensing is simplified. Saved costs.
  • FIG. 1 is a schematic diagram of a connection structure of an additive automatic dispensing device of the present invention
  • FIG. 2 is a schematic diagram of extracting additives by an additive extraction unit of the present invention
  • FIG. 3 is a schematic diagram of an additive in a flushing water metering chamber of the flushing waterway of the present invention
  • FIG. 5 is a schematic structural diagram of a communication between a liquid storage box and a metering chamber according to the present invention.
  • the automatic additive adding device includes a liquid storage box 1 for storing liquid additives, a metering chamber 2 connected to the liquid storage box 1, and an additive in the liquid storage box 1.
  • a liquid storage box 1 for storing liquid additives
  • a metering chamber 2 connected to the liquid storage box 1
  • an additive in the liquid storage box 1 To the additive extraction unit 3 in the metering chamber 2 and the flushing water path 4 communicating with the metering chamber 2.
  • the metering chamber 2 can meter the additive dose entering the chamber, and the flushing water path 4 passes the inlet water into the metering chamber 2.
  • the additive drawn into the metering chamber 2 by the additive extraction unit 3 is discharged and the metering chamber 2 is flushed; the metering chamber 2 and the liquid storage box 1 may be directly communicated or indirectly communicated with each other, and the metering chamber 2 and A unidirectional passage 5 is arranged between the liquid storage boxes 1 and flows from the liquid storage box 1 to the measuring chamber 2.
  • the metering chamber 2 described in this embodiment is a constant volume container with a function of measuring the added dose, that is, the volume of the metering chamber 2 is fixed.
  • the metering chamber 2 The additional doses drawn are determined.
  • the metering chamber 2 is filled by single or multiple extraction of the additive, and the metering chamber 2 is flushed to flush the metering chamber 2 to achieve accurate addition of the additive.
  • the metering chamber 2 is provided with a liquid metering valve (not shown in the figure) for measuring the added dose.
  • a liquid metering valve (not shown in the figure) for measuring the added dose.
  • an impeller flow valve can be used.
  • the additive extraction unit 3 includes a venturi tube 31, which is disposed on the main water inlet 6, and a negative pressure port 32 between the venturi tube and the metering chamber 2.
  • a negative pressure pumping line 33 is provided, and the water in the main water inlet 6 is used to generate a negative pressure in the venturi tube negative pressure port 32 to extract the air in the metering chamber 2 so as to pump the additives in the liquid storage box 1 into the metering.
  • chamber 2 In chamber 2.
  • the pumping negative pressure line 33 is provided with a floating ball valve 34.
  • the floating ball in the floating ball valve 34 rises to close the pumping negative pressure line 33, and at this time in the storage box 1 Additives are no longer pumped.
  • the flushing water path 4 includes:
  • Intake water path 41 which controls the introduction of water into the metering chamber 2;
  • the outlet water channel 42 discharges the additive extraction unit 3 into the measuring chamber 2 and discharges the flushing water.
  • the outlet water channel 42 is provided with a one-way valve 43.
  • the one-way valve 43 is closed.
  • the one-way valve can be a ball valve.
  • the negative pressure is drawn from the metering chamber 2, the negative pressure can seal the ball valve.
  • the ball valve can be reopened. .
  • the main water inlet 6 is also provided with a main water inlet valve 61 that controls the water inlet of the water channel, and the water inlet 41 is also provided with a flush water inlet valve 44 that controls the flush water, as shown in FIG. 2, which is an additive extraction unit.
  • FIG. 2 Schematic diagram of extracting additives, the main water inlet valve 61 is opened, and the main water inlet 6 is supplied with water, which can directly or indirectly enter the washing container 7 of the washing equipment.
  • the venturi tube is pumped down
  • the pressure port 32 generates a negative pressure, and extracts the air in the metering chamber 2 so as to draw the additives in the liquid storage box 1 into the metering chamber 2 through the liquid guide pipe 51.
  • the liquid guide pipe 51 The non-return valve 52 in the middle can pass the additive, the extracted additive reaches the preset value of the metering chamber, the float ball valve 34 is closed, and the negative pressure generated by the venturi 31 is no longer effective.
  • FIG. 3 it is a schematic diagram of flushing the additives in the metering chamber with the flushing water channel.
  • the flushing water inlet valve 44 is opened.
  • the flushing water enters the metering cavity 2 through the inlet water channel 41.
  • the drainage of the outlet water channel 42 opens the check valve 43, In this process, the one-way passage 5 between the metering chamber 2 and the liquid storage box 1 can prevent water from flowing back into the liquid storage box 1.
  • the drainage of the outlet water channel 42 may directly or indirectly enter the washing container 7 of the washing device, for example, the water entering directly into the outer tub of the washing machine or indirectly into the outer tub through the detergent box of the washing machine.
  • this embodiment uses the suction negative pressure pipe 33 as a part of the inlet water channel 41 and the main inlet of the rear part of the venturi pipe 31.
  • Control valve 8 is provided on waterway 6, and the main water inlet 6 is supplied with water.
  • control valve 8 When control valve 8 is open, the main water inlet passes through Venturi tube 31, and the negative pressure line 33 pumps negative pressure to achieve the extraction of additives; After the added dose reaches the set conditions, the control valve 8 is closed, and the water in the main water inlet 6 will pass through the negative pressure pipeline 33 to the metering chamber 2 to form the water inlet 41.
  • the metering chamber 2 and the liquid storage box 1 are indirectly connected, and can be separated and disconnected, and a contact is provided between the two. Interconnected, separated shut-off structure.
  • the general design is that the metering chamber 2 is a fixed installation structure, and the liquid storage box 1 is a movable and detachable structure, such as a structure that can be pulled or taken out from the opening in the tank.
  • the metering chamber is assembled by pushing or pressing.
  • the chamber is in communication, and when taken out, in order to prevent the additive liquid in the liquid storage box 1 from overflowing from the connection, the cut-off structure is provided.
  • a solution selected in this embodiment is that a liquid guiding tube 9 is provided between the measurement chamber 2 and the liquid storage box 1, and a check valve (not shown in the figure) is provided in the liquid guiding tube 9, One end of the liquid guide tube 9 communicates with the metering chamber 2.
  • the storage box 1 is provided with a mounting hole (not shown in the figure) corresponding to the other end of the liquid guide tube 9.
  • the installation hole is provided to control the internal and external opening and closing of the liquid storage box 1.
  • the stop valve of the liquid guide tube 9 is provided with a push rod 91 at the other end corresponding to the liquid storage box 1.
  • the shut-off valve includes a valve chamber 11 and a liquid outlet 12 provided in the mounting hole.
  • the valve chamber 11 is in communication with the liquid outlet 12 and the liquid storage box 1, respectively.
  • a spring 14 and The valve core 15 blocking the liquid outlet 12 is reset and moved by the spring 14.
  • the push rod 91 presses against the valve core 15 and leaves the liquid outlet 12 to realize the liquid guide tube 9 and the valve.
  • the internal communication between the chamber 11 and the liquid storage box 1 when the liquid storage box is separated from the liquid guide tube 9, the spring 14 resets and moves the valve core 15 to block the liquid outlet 12 to realize the cutoff of the inside and outside of the liquid storage box 1;
  • valve chamber 11 communicates with the inside of the liquid storage box 1 through a suction pipe 13, one end of the suction pipe 13 communicates with the valve room 11, and the other end extends to the lowest position inside the liquid storage box 1.

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Abstract

本发明公开了一种添加剂自动投放装置，包括储存液体添加剂的储液盒、与储液盒相通的计量腔室、将储液盒内的添加剂抽到计量腔室内的添加剂抽取单元、及与计量腔室相通的冲洗水路，计量腔室能够计量进入腔室内的添加剂量，冲洗水路将进水通入计量腔室，然后排出被添加剂抽取单元抽到计量腔室内的添加剂并冲洗计量腔室；计量腔室与储液盒可以是直接连通也可以是间接连通，所述的计量腔室与所述的储液盒之间配置有自储液盒向计量腔室方向流通的单向通路。本发明通过在储液盒与计量腔室之间设置简单的单向通路，能够避免在冲洗计量腔室的过程中将冲洗水导入储液盒，结构简单，简化了自动投放的控制时序，也节约了成本。

Description

一种添加剂自动投放装置 技术领域
本发明属于洗涤设备领域，具体地说，涉及一种添加剂自动投放装置。
背景技术
传统的洗衣机在洗涤过程中使用的洗涤剂与洗衣机是分开放置的，在洗衣机上没有设置洗涤剂的添加装置，洗涤剂不能自动添加，该结构不能实现洗衣机全自动洗衣控制过程。随着洗衣机自动化的提高，大多洗衣机设置成将放置洗涤剂或/和柔软剂的洗涤剂盒与进水管路相通，通过进水将洗涤剂盒内的洗涤剂或/和柔软剂冲入洗涤桶中，但是该结构必须每次洗衣都要先将洗涤剂或/和柔软剂放入洗涤剂盒中，同样没有实现全自动洗衣控制过程。
目前已有大量有关洗涤剂自动投放装置的专利申请，申请号为CN97208723.0的中国专利公开了一种洗衣机洗涤剂添加装置，它是在洗衣机箱体上设有与瓶配合的容腔，容腔的底部是圆锥通孔，在通孔上固定有垂直固定片，垂直固定片固定洗涤液导管，瓶体与容腔相配合，在瓶口上设置有圆锥状导入管，在瓶体底部有换气口。该结构无法控制洗涤剂添加量，且容易损坏从而浪费洗涤剂。
申请号为CN99101767.6的中国专利公开了一种能够自动加入液体洗涤剂的洗衣机，包括：一个洗衣缸，一个洗涤剂盒，一个开/闭加入通道的阀，从洗涤剂盒的底部加入孔加入到洗衣缸中的洗涤剂量受阀控制，并于洗涤剂和内设有测定洗涤剂量的传感器。该结构直接将未稀释的洗涤剂排入洗衣缸会损伤被洗衣物。
申请号为CN200610136059.9的中国专利公开了一种具有虹吸单元的洗涤剂盒的洗衣机的洗涤剂供应装置，将洗涤剂注入洗涤剂盒，在将洗涤水注入洗涤剂盒将盒内的洗涤剂稀释后从虹吸单元排入洗涤缸。该发明解决了浓洗涤剂直接进入洗涤缸所带的损伤被洗衣物的问题，但是无法实现洗涤剂的自动添加剂精确控制。
申请人在先申请的申请号为CN200910250314.6的中国专利公开了一种利用负压自动添加洗涤剂的洗衣方法及洗衣机，该洗衣机包括进水口、洗涤剂容器及洗涤桶，进水口与洗涤桶之间设有两条进水通路，分别为主进水路和清洗水路，清洗水路与洗涤桶之间设有定容容器，定容容器与洗涤剂容器连通，主进水路中设有一文丘里管，主进水水流利用文丘里效应原理，水流由粗变细，加快进水流速，使文丘里管出口的后侧形成一个相对真空区，该相对 真空区与定容容器连通，使得定容容器产生负压，将与定容容器连通的洗涤剂容器内的洗涤剂抽到定容容器内。但是，在清洗水路对应洗涤剂容器设有控制阀，该控制阀控制通路连通时也同时控制对应的定容容器与洗涤剂容器之间的封闭，反之亦然。该结构虽然能够实现精确控制洗涤剂，但是由于增加了控制阀的结构，添加剂控制时序复杂，成本高。
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，提供一种结构简单、控制方便、成本低的添加剂自动投放装置。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种添加剂自动投放装置，包括，
储液盒，内部储存液体添加剂；
计量腔室，与储液盒相通，计量进入腔室内的添加剂量；
添加剂抽取单元，将储液盒内的添加剂抽到计量腔室内；
冲洗水路，将进水通入计量腔室，排出被添加剂抽取单元抽到计量腔室内的添加剂并冲洗计量腔室；
所述的计量腔室与所述的储液盒之间配置有自储液盒向计量腔室方向流通的单向通路。
进一步的，所述的计量腔室与所述的储液盒之间设有相通的导液管路，所述的导液管路内设有自储液盒向计量腔室方向流通的单向阀。
进一步的，所述的计量腔室与所述的储液盒之间设有接触相通、分离关闭的截止结构，
优选的，计量腔室与储液盒之间设有两段可活动分离的导液管路，截止结构设于两管路连接的端部，其中一导液管路内设有自储液盒向计量腔室方向流通的单向阀。
进一步的，所述的计量腔室与储液盒之间设有导液管，导液管一端与计量腔室连通，储液盒对应导液管另一端的位置设有安装孔，安装孔内设有控制储液盒内外通断的截止阀，导液管对应储液盒的另一端端部设置有推杆，在储液盒与导液管连接时，该导液管端部伸入安装孔内打开截止阀实现计量腔室与储液盒之间相通。
进一步的，所述的截止阀包括设于安装孔内的阀室和出液口，阀室分别与出液口、储液盒内部相通，阀室内设有弹簧和通过弹簧复位移动堵住出液口的阀芯，在储液盒与导液管连 接时，推杆顶住阀芯离开出液口，实现导液管与阀室、储液盒内部的连通，在储液盒与导液管分离时，弹簧复位移动阀芯堵住出液口，实现储液盒内部与外部的截止；
优选的，阀室通过吸管与储液盒内部相通，吸管的一端与阀室相通，另一端延伸至储液盒内部的最低位置。
进一步的，所述的导液管内设有单向阀。
进一步的，所述的计量腔室为具有测量添加剂量功能的定容容器，
或者，计量腔室设有测量添加剂量的液体计量阀。
进一步的，所述的添加剂抽取单元包括文丘里管，文丘里管设于主进水路上，文丘里管抽负压口与计量腔室之间设有抽负压管路，
优选的，抽负压管路设有浮球阀。
进一步的，所述的冲洗水路包括，
进水水路，控制将进水导入计量腔室；
出水水路，将添加剂抽取单元抽至计量腔室内的添加剂和冲洗水排出，
优选的，所述的出水水路设有单向阀。
进一步的，于所述的文丘里管后部的主进水路上还设有控制阀，在控制阀关闭状态下，所述的主进水路进水经过抽负压管路至计量腔室构成所述的进水水路。
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。
本发明在添加剂的自动投放领域做出了巨大的改进，针对添加剂能做到精确的自动添加，利用添加剂抽取单元将添加剂定量抽取后再由冲洗水路将定量的添加剂排出就能完全实现自动添加，结构简单，不仅能够防止人工添加添加剂过少或者过量情况的出现，同时还节省了使用其它复杂的自动添加添加剂结构带来的成本支出，也因此而减轻了排放的洗涤水对环境的污染，实现了洗衣过程的自动化，提高了洗衣的效率。另外，通过在储液盒与计量腔室之间设置简单的单向通路，能够避免在冲洗计量腔室的过程中将冲洗水导入储液盒，结构简单，简化了自动投放的控制时序，也节约了成本。
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是本发明添加剂自动投放装置的连接结构示意图；
图2是本发明添加剂抽取单元抽取添加剂的示意图；
图3是本发明冲洗水路冲洗计量腔室内添加剂的示意图；
图4是本发明另一添加剂自动投放装置的连接结构示意图；
图5是本发明储液盒与计量腔室连通结构示意图。
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4所示，本发明所述的添加剂自动投放装置，包括储存液体添加剂的储液盒1、与储液盒1相通的计量腔室2、将储液盒1内的添加剂抽到计量腔室2内的添加剂抽取单元3、及与计量腔室2相通的冲洗水路4，计量腔室2能够计量进入腔室内的添加剂量，冲洗水路4将进水通入计量腔室2，然后排出被添加剂抽取单元3抽到计量腔室2内的添加剂并冲洗计量腔室2；计量腔室2与储液盒1可以是直接连通也可以是间接连通，所述的计量腔室2与所述的储液盒1之间配置有自储液盒1向计量腔室2方向流通的单向通路5。
具体的为，所述的计量腔室2与所述的储液盒1之间设有相通的导液管路51，所述的导液管路51内设有自储液盒1向计量腔室2方向流通的单向阀52。
实施例一
本实施例所述的计量腔室2为具有测量添加剂量功能的定容容器，也即该计量腔室2的容积是固定的，当添加剂抽取单元3抽取的添加剂充满计量腔室2后，该抽取的添加剂量是确定的。通过单次或多次抽取添加剂充满计量腔室2、冲洗水路4冲洗计量腔室2后实现添加剂的精确投放。
或者，计量腔室2设有测量添加剂量的液体计量阀(图中未示出)，一般可采用叶轮流量阀。当添加剂抽取单元3抽取抽取的添加剂流经液体计量阀时，能够确定抽取的添加剂量。
实施例二
在本实施例中，为了节约成本，所述的添加剂抽取单元3包括文丘里管31，文丘里管31设于主进水路6上，文丘里管抽负压口32与计量腔室2之间设有抽负压管路33，利用主进水路6的进水在文丘里管抽负压口32产生负压抽取计量腔室2中的空气，从而将储液盒1中的添加剂抽入计量腔室2中。
优选的，抽负压管路33设有浮球阀34，当被抽取的添加剂充满计量腔室2后，浮球阀34中的浮球上升封闭抽负压管路33，此时储液盒1中的添加剂不再被抽取。
在本发明中，所述的冲洗水路4包括，
进水水路41，控制将进水导入计量腔室2；
出水水路42，将添加剂抽取单元3抽至计量腔室2内的添加剂和冲洗水排出，
优选的，所述的出水水路42设有单向阀43，在添加剂抽取单元3抽取添加剂至计量腔室2的过程中，该单向阀43是封闭的，当冲洗水路4开始冲洗计量腔室时，能够从该单向阀43排出添加剂和冲洗水，该单向阀可为球阀，当计量腔室2抽负压时，负压能够使得球阀密封，当冲洗出水时，能够重开该球阀。
具体的，主进水路6还设有控制该水路进水的主进水阀61，进水水路41还设有控制冲洗进水的冲洗进水阀44，如图2所示，为添加剂抽取单元抽取添加剂的示意图，主进水阀61开启，主进水路6进水，该进水可直接或间接进入洗涤设备的洗涤容器7中，当进水经过文丘里管31时，文丘里管抽负压口32产生负压，抽取计量腔室2中的空气，从而将储液盒1中的添加剂由导液管路51抽入计量腔室2中，该抽取添加剂的过程，导液管路51中的单向 阀52能够使得添加剂通过，抽取的添加剂达到计量腔室的预设值，浮球阀34关闭，文丘里管31产生的负压不再起作用。
如图3所示，为冲洗水路冲洗计量腔室内添加剂的示意图，冲洗进水阀44开启，冲洗进水经过进水水路41进入计量腔室2内，出水水路42的排水开启单向阀43，该过程中计量腔室2与储液盒1之间的单向通路5能够防止进水倒流至储液盒1中。出水水路42的排水可直接或间接进入洗涤设备的洗涤容器7中，例如，进水直接至洗衣机的外筒中或经过洗衣机的洗涤剂盒间接进入外筒中。
实施例三
如图4所示，本实施例与上述实施例的区别在于，本实施例将抽负压管路33作为所述的一部分进水水路41，于所述的文丘里管31后部的主进水路6上设有控制阀8，主进水路6进水，在控制阀8开启状态下，主进水通过文丘里管31，抽负压管路33抽负压，实现添加剂的抽取；当抽取的添加剂量达到设定的条件后，关闭该控制阀8，此时所述的主进水路6进水将经过抽负压管路33至计量腔室2构成所述的进水水路41。
实施例四
如图5所示，在本实施例所述的添加剂自动投放装置中，所述的计量腔室2与所述的储液盒1为间接连通，可以分离断开，两者之间设有接触相通、分离关闭的截止结构。
计量腔室2与储液盒1之间设有两段可活动分离的导液管路51，截止结构设于两管路连接的端部，其中一导液管路51内设有自储液盒1向计量腔室2方向流通的单向阀52。当计量腔室2与储液盒1之间连通后，单向阀52能够控制禁止计量腔室2向储液盒1方向的流通。
一般的设计为，计量腔室2为固定安装的结构，储液盒1为活动可拆卸的结构，例如可抽拉的结构或从槽内开口处取出的结构，通过推进或按压装配与计量腔室连通，当取出时，为了防止储液盒1内的添加剂液体从连通处溢出，因此设置该截止结构。
本实施例选择的方案为，所述的计量腔室2与储液盒1之间设有导液管9，所述的导液管9内设有单向阀(图中未示出)，导液管9一端与计量腔室2连通，储液盒1对应导液管9另一端的位置设有安装孔(图中未示出)，安装孔内设有控制储液盒1内外通断的截止阀，导液管9对应储液盒1的另一端端部设置有推杆91，在储液盒1与导液管9连接时，该导液管9端部伸入安装孔内打开截止阀实现计量腔室2与储液盒1之间的连通。
进一步的，所述的截止阀包括设于安装孔内的阀室11和出液口12，阀室11分别与出液 口12、储液盒1内部相通，阀室11内设有弹簧14和通过弹簧14复位移动堵住出液口12的阀芯15，在储液盒1与导液管9连接时，推杆91顶住阀芯15离开出液口12，实现导液管9与阀室11、储液盒1内部的连通，在储液盒与导液管9分离时，弹簧14复位移动阀芯15堵住出液口12，实现储液盒1内部与外部的截止；
优选的，阀室11通过吸管13与储液盒1内部相通，吸管13的一端与阀室11相通，另一端延伸至储液盒1内部的最低位置。
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 (13)

  1. 一种添加剂自动投放装置，包括，
    储液盒，内部储存液体添加剂；
    计量腔室，与储液盒相通，计量进入腔室内的添加剂量；
    添加剂抽取单元，将储液盒内的添加剂抽到计量腔室内；
    冲洗水路，将进水通入计量腔室，排出被添加剂抽取单元抽到计量腔室内的添加剂并冲洗计量腔室；
    其特征在于：所述的计量腔室与所述的储液盒之间配置有自储液盒向计量腔室方向流通的单向通路。
  2. 根据权利要求1所述的一种添加剂自动投放装置，其特征在于：所述的计量腔室与所述的储液盒之间设有相通的导液管路，所述的导液管路内设有自储液盒向计量腔室方向流通的单向阀。
  3. 根据权利要求1所述的一种添加剂自动投放装置，其特征在于：所述的计量腔室与所述的储液盒之间设有接触相通、分离关闭的截止结构。
  4. 根据权利要求3所述的一种添加剂自动投放装置，其特征在于：所述的计量腔室与储液盒之间设有两段可活动分离的导液管路，截止结构设于两管路连接的端部，其中一导液管路内设有自储液盒向计量腔室方向流通的单向阀。
  5. 根据权利要求4所述的一种添加剂自动投放装置，其特征在于：所述的计量腔室与储液盒之间设有导液管，导液管一端与计量腔室连通，储液盒对应导液管另一端的位置设有安装孔，安装孔内设有控制储液盒内外通断的截止阀，导液管对应储液盒的另一端端部设置有推杆，在储液盒与导液管连接时，该导液管端部伸入安装孔内打开截止阀实现计量腔室与储液盒之间相通。
  6. 根据权利要求5所述的一种添加剂自动投放装置，其特征在于：所述的截止阀包括设于安装孔内的阀室和出液口，阀室分别与出液口、储液盒内部相通，阀室内设有弹簧和通过弹簧复位移动堵住出液口的阀芯，在储液盒与导液管连接时，推杆顶住阀芯离开出液口，实现导液管与阀室、储液盒内部的连通，在储液盒与导液管分离时，弹簧复位移动阀芯堵住出液口，实现储液盒内部与外部的截止。
  7. 根据权利要求6所述的一种添加剂自动投放装置，其特征在于：所述的阀室通过吸管 与储液盒内部相通，吸管的一端与阀室相通，另一端延伸至储液盒内部的最低位置。
  8. 根据权利要求5-7任一所述的一种添加剂自动投放装置，其特征在于：所述的导液管内设有单向阀。
  9. 根据权利要求1所述的一种添加剂自动投放装置，其特征在于：所述的计量腔室为具有测量添加剂量功能的定容容器，
    或者，计量腔室设有测量添加剂量的液体计量阀。
  10. 根据权利要求1所述的一种添加剂自动投放装置，其特征在于：所述的添加剂抽取单元包括文丘里管，文丘里管设于主进水路上，文丘里管抽负压口与计量腔室之间设有抽负压管路。
  11. 根据权利要求10所述的一种添加剂自动投放装置，其特征在于：所述的抽负压管路设有浮球阀。
  12. 根据权利要求10或11所述的一种添加剂自动投放装置，其特征在于：所述的冲洗水路包括，
    进水水路，控制将进水导入计量腔室；
    出水水路，将添加剂抽取单元抽至计量腔室内的添加剂和冲洗水排出。
  13. 根据权利要求12所述的一种添加剂自动投放装置，其特征在于：于所述的文丘里管后部的主进水路上还设有控制阀，在控制阀关闭状态下，所述的主进水路进水经过抽负压管路至计量腔室构成所述的进水水路。
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CN209144484U (zh) * 2018-09-10 2019-07-23 青岛海尔滚筒洗衣机有限公司 一种添加剂自动投放装置

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