WO2018153017A1 - 液体投放装置和具有其的衣物处理设备 - Google Patents
液体投放装置和具有其的衣物处理设备 Download PDFInfo
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- WO2018153017A1 WO2018153017A1 PCT/CN2017/094321 CN2017094321W WO2018153017A1 WO 2018153017 A1 WO2018153017 A1 WO 2018153017A1 CN 2017094321 W CN2017094321 W CN 2017094321W WO 2018153017 A1 WO2018153017 A1 WO 2018153017A1
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- cavity
- liquid
- sub
- elastic diaphragm
- dispensing device
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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
Definitions
- the present invention relates to the field of laundry treatment technology, and more particularly to a liquid dispensing device and a laundry treating device therewith.
- washing machines As the level of automation in washing machines has increased, more and more washing machines have added automatic delivery.
- the automatic dispensing of some washing machines realizes the delivery of detergent through an electric pump, but this method of placing is too expensive.
- washing machines that use the Venturi principle to achieve automatic delivery of detergent, but the accuracy of delivery is not high.
- the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention proposes a liquid dispensing device that is less costly and has a better delivery effect.
- the present invention also proposes a laundry treating apparatus having the above liquid dispensing device.
- the liquid dispensing device of the present invention comprises: a casing defining a cavity therein, the cavity having a first liquid inlet, a second liquid inlet, a first liquid outlet and a second liquid outlet; An elastic diaphragm disposed in the cavity to divide the cavity into a first sub-cavity and a second sub-cavity, wherein the first liquid inlet and the first liquid outlet respectively The first sub-cavity is in communication, the second liquid inlet and the second liquid outlet are respectively connected to the second sub-cavity, and the flow area of the second liquid outlet is smaller than that of the second liquid inlet a flow area, the elastic diaphragm being elastically deformable under the pressure of the elastic force and the liquid entering the second sub-chamber to change the volume of the first sub-chamber; the inlet valve and the outlet valve, The inlet valve and the outlet valve are respectively disposed at the first inlet port and the first outlet port, and the inlet valve and the outlet valve are respectively a one-way valve.
- the liquid delivery device proposed by the invention can realize quantitative delivery, has good delivery effect, simple structure, low cost and high delivery precision.
- liquid dispensing device proposed by the present invention may further have the following additional technical features:
- the liquid dispensing device further includes: an elastic member disposed in the first sub-cavity and connected to the elastic diaphragm to provide elastic force to the elastic diaphragm .
- the liquid dispensing device further includes: a support plate disposed on a side surface of the elastic diaphragm on the first sub-cavity, the elastic member being supported at the On the support plate.
- the edge of the elastic diaphragm is formed with an arcuate convex portion that protrudes into the first sub-cavity and opens toward the second sub-cavity
- the edge of the support plate is Having a curved cuff, the curved cuff being provided a convex side of the curved convex portion, an inner end of the curved crest being in contact with the arcuate convex portion and an outer end being spaced apart from the arcuate convex portion.
- the elastic member is formed as a coil spring, and both ends of the coil spring respectively abut against the inner wall surface of the first sub-cavity and the support plate.
- the coil spring is a conical spring.
- the liquid dispensing device further includes: a first limiting portion for limiting when the elastic diaphragm is deformed into the first sub-cavity, the first limiting portion And disposed on at least one of the support plate and the inner wall surface of the first sub-cavity.
- the first limiting portion is formed as a limiting post disposed on the support plate and hollow.
- the liquid dispensing device further includes: a second limiting portion for limiting when the elastic diaphragm is deformed into the second sub-cavity, the second limiting portion And disposed on at least one of the elastic diaphragm and the inner wall surface of the second sub-cavity.
- the outer casing includes: a first casing, the first casing is provided with the first liquid inlet and the first liquid outlet; and the second casing is The first housing and the second housing are connected to each other and cooperate to form the cavity, and an outer circumference of the elastic diaphragm is interposed between the first housing and the second housing, The second liquid inlet and the second liquid inlet are provided on the second casing.
- the two sides of the outer peripheral edge of the elastic diaphragm are respectively provided with sealing protrusions extending in a circumferential direction thereof, and the first housing and the second housing are respectively corresponding to the The sealing projection stops.
- the elastic membrane is a rubber membrane.
- the laundry treating apparatus proposed by the present invention comprises a liquid dispensing device according to the present invention.
- FIG. 1 is a schematic structural view of a liquid dispensing device according to an embodiment of the present invention.
- Liquid delivery device 100 Liquid delivery device 100
- Elastic diaphragm 20 ; curved convex portion 210;
- Elastic member 40 support plate 50; curved flange 51;
- first liquid inlet 101 a first liquid outlet 102; a second liquid inlet 103; a second liquid outlet 104;
- first sub-cavity 110 a first sub-cavity 110; a second sub-cavity 120;
- the first limiting portion 71 and the second limiting portion 72 are identical to each other.
- liquid dispensing device 100 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
- a liquid dispensing device 100 may include a housing 10, an elastic diaphragm 20, an inlet valve 31, and an outlet valve 32.
- a cavity is defined in the outer casing 10, and the cavity has a first liquid inlet 101, a second liquid inlet 103, a first liquid outlet 102, and a second liquid outlet 104.
- the elastic diaphragm 20 is disposed in the cavity to divide the cavity into the first sub-cavity 110 and the second sub-cavity 120, and the first liquid inlet 101 and the first liquid outlet 102 are respectively connected to the first sub-cavity 110, and the second The liquid inlet 103 and the second liquid outlet 104 are in communication with the second sub-cavity 120, respectively.
- the first liquid inlet 101 serves as a liquid inlet of the first sub-chamber 110
- the first liquid outlet 102 serves as a liquid outlet of the first sub-chamber 110
- the second liquid inlet 103 serves as a second sub-chamber 120.
- the liquid inlet port and the second liquid outlet 104 serve as the liquid outlet of the second sub-chamber 120.
- the flow area of the second liquid outlet 104 is smaller than the flow area of the second liquid inlet 103 to prevent the liquid from directly flowing out of the second liquid outlet 104 and cannot be stored in the second sub-chamber 120.
- the specific arrangement positions of the first liquid inlet 101, the first liquid outlet 102, the second liquid inlet 103, and the second liquid outlet 104 are not particularly limited.
- the inlet valve 31 is provided at the first inlet port 101
- the outlet valve 32 is provided at the first outlet port 102
- the inlet valve 31 and the outlet valve 32 are respectively check valves. That is, the liquid can only enter from the first liquid inlet 101 and cannot flow out from the first liquid inlet 101. Similarly, the liquid can only flow out from the first liquid outlet 102, but not from the first liquid outlet 102. Inflow.
- the elastic diaphragm 20 is elastically deformable to change the volume of the first sub-chamber 110 under the elastic force and the pressure of the liquid entering the second sub-cavity 120.
- the liquid when a liquid with a certain pressure is flushed from the second liquid inlet 103 into the second sub-cavity 120, the liquid has a pressure on the elastic diaphragm 20 toward the first sub-cavity 110, so that the elastic diaphragm 20 The deformation of the first sub-cavity 110 is reduced by the elastic force, and the volume of the first sub-chamber 110 becomes smaller.
- the first sub-chamber 110 contains liquid, the liquid can be discharged from the first liquid through the liquid discharge valve 32 when pressed. The mouth 102 is discharged.
- the elastic diaphragm 20 loses the pressure, and the elastic diaphragm 20 returns to the original position under the elastic force, wherein during the recovery of the elastic diaphragm 20, the first sub-chamber 110 The volume gradually becomes larger In the negative pressure, the liquid can enter the first sub-cavity 110 from the first liquid inlet 101 through the inlet valve 31, and the water in the second sub-chamber 120 can be discharged through the second liquid outlet 104.
- the liquid dispensing device 100 can utilize the water pressure as the driving force, and use the elastic diaphragm to change the volume of the first sub-cavity 110 to realize the liquid extraction, which can realize the quantitative dispensing every time, and can be repeated as many times as needed.
- the delivery the effect of the delivery is simple, the structure is relatively simple, the flow control is not required to set a special flow detection device, the cost is low and the delivery is accurate, and the diaphragm has a sealing function, which can improve the sealing performance of the liquid delivery device 100.
- the elastic diaphragm 20 can be made of a variety of materials.
- the elastic diaphragm 20 may be a rubber diaphragm.
- the rubber diaphragm has good elasticity, long service life and low cost.
- the elastic diaphragm 20 can also be made of other elastic materials, which will be understood by those skilled in the art and will not be described in detail herein.
- the liquid dispensing device 100 may further include an elastic member 40.
- the elastic member 40 is disposed in the first sub-cavity 110 and connected to the elastic diaphragm 20 to the elastic diaphragm. 20 provides elastic force.
- the elastic diaphragm 20 can be deformed under its own elastic force and liquid pressure.
- the elastic member 40 can replenish the elastic diaphragm 20 with elastic force, compensate for the lack of the elastic force of the elastic diaphragm 20, ensure the elastic force is sufficient, and the elastic diaphragm 20 loses liquid. After the pressure, the original position can be restored in time to achieve timely and accurate liquid feeding, and the liquid delivery device 100 has high operational reliability.
- the liquid dispensing device 100 may further include a support plate 50.
- the support plate 50 may be disposed on one side surface of the elastic diaphragm 20 on the first sub-cavity 110, and the elastic member 40 is supported on the support plate. 50 on.
- the support plate 50 can support the elastic diaphragm 20 to ensure the shape stability of the elastic diaphragm 20, and at the same time, can transmit the elastic force of the elastic member 40 to the elastic diaphragm 20, and the force is more uniform, and the elastic diaphragm 20 is deformed. Good sex can improve the accuracy of liquid delivery.
- the edge of the elastic diaphragm 20 is formed with an arcuate convex portion 210 that protrudes into the first sub-cavity 110 and opens toward the second sub-cavity 120. That is, the curved convex portion 210 is formed to have a convex shape on one side and a concave surface on the other side, the convex surface facing the first sub-cavity 110 and the concave surface facing the second sub-cavity 120. Thereby, the curved convex portion 210 is relatively easily deformed and is also easily restored to the original shape, and the deformability of the elastic diaphragm 20 and the ability to restore the original shape can be improved, and the effect of the placement can be improved.
- the edge of the support plate 50 is provided with a curved flange 51, and the curved flange 51 is disposed on the convex side of the curved convex portion 210, and the inner end of the curved flange 51 is in contact with the curved convex portion 210, and is curved.
- the outer end of the flange 51 is spaced apart from the arcuate projection 210.
- the inner end of the curved flange 51 is adjacent to one end of the middle portion of the support plate 50, and the outer end of the curved flange 51 is an end away from the middle of the support plate 50.
- the fixing effect of the support plate 50 and the elastic diaphragm 20 can be improved, and the curved flange 51 on the support plate 50 can form a stop for the curved convex portion 210, thereby avoiding excessive deformation of the curved convex portion 210 and further improving The change of the elastic diaphragm 20 Shape effect, improve the accuracy and reliability of delivery.
- the curved flange 51 is formed in a curved shape that is concavely curved toward the second sub-cavity 120, and the curved flange 51 extends substantially along the extending direction of the convex surface of the curved convex portion 210, in a normal state.
- the outer end of the curved flange 51 does not abut against the curved convex portion 210 and can be in contact with the curved convex portion 210 when the curved convex portion 210 is deformed to a certain extent, and the deformation of the curved convex portion 210 can be reduced.
- the friction ensures the better deformability and the stopping effect of the curved convex portion 210.
- the specific structure of the elastic member 40 is not particularly limited.
- the elastic member 40 may be formed as a coil spring, and both ends of the coil spring respectively abut against the inner wall surface of the first sub-cavity 110 and the support plate 50.
- the coil spring has good deformability, is easy to install and has low cost, and has low interference with liquid flow.
- the coil spring may be a conical spring.
- a conical spring can be understood as a coil spring having a large one-end size and a small size at the other end, which is more deformable and more reliable.
- the large end of the coil spring may be connected to the support plate 50, and the small end of the coil spring may be connected to the inner wall surface of the first sub-cavity 110.
- the installation manner shown in FIG. 1 may also be adopted, that is, The small end of the coil spring abuts against the support plate 50, and the large end end abuts against the inner wall surface of the first sub-cavity 110.
- the liquid dispensing device 100 may further include a first limiting portion 71, and the first limiting portion 71 may be deformed in the first sub-cavity 110 in the elastic diaphragm 20.
- the first limiting portion 71 can be disposed on the support plate 50.
- a limiting portion 71 moves correspondingly.
- the first limiting portion 71 can abut against the inner wall surface of the first sub-cavity 110 to restrict further deformation of the elastic diaphragm 20, and the limiting effect is good.
- the first limiting portion 71 is not limited to being disposed on the support plate 50, but may be disposed on the inner wall surface of the first sub-cavity 110, and may also have a better limiting effect. In some embodiments of the present invention, the first limiting portion 71 is disposed on the inner wall surface of the support plate 50 and the first sub-cavity 110, and the limiting effect is good.
- the structure of the first limiting portion 71 can be formed into a plurality of types.
- the first limiting portion 71 can be formed to be disposed on the support plate 50 and protrude from the limiting ring in the first sub-cavity 110.
- the limiting ring is disposed on a side surface of the supporting plate 50 facing away from the elastic diaphragm 20, and the limiting ring has a hollow groove extending axially away from the elastic diaphragm 20.
- the elastic member 40 is a coil spring
- the coil spring can be sleeved on the limiting post, which can further improve the installation accuracy and reliability of the coil spring.
- the liquid dispensing device 100 may further include a second limiting portion 72.
- the second limiting portion 72 is disposed on the inner wall surface of the second sub-cavity 120, and the second limiting portion 72 may be disposed at the elastic diaphragm 20 to the second surface.
- the sub-cavity 120 acts as a limit.
- the second limiting portion 72 can restrict further deformation of the elastic diaphragm 20, and further improve the deformation accuracy of the elastic diaphragm 20.
- the second limiting portion 72 may also be disposed on the elastic diaphragm 20. That is, the second limiting portion 72 may be disposed on at least one of the inner wall surfaces of the elastic diaphragm 20 and the second sub-cavity 120, and the specific setting position may be flexibly set according to the situation.
- the second limiting portion 72 can be a limiting block, and the limiting block can include a plurality of spaced apart settings to further improve the limiting effect.
- the first limiting portion 71 and/or the second limiting portion 72 can be used to control the range of motion of the elastic diaphragm 20 to adjust the amount of liquid to be delivered each time, which is convenient to adjust.
- the outer casing 10 may include a first casing 11 and a second casing 12, and the first casing 11 is provided with a first liquid inlet 101 and a first liquid outlet 102, and the second liquid inlet 103 And the second liquid inlet 103 is provided on the second casing 12.
- the first housing 11 and the second housing 12 are connected to each other and form a cavity.
- the outer circumference of the elastic diaphragm 20 is sandwiched between the first housing 11 and the second housing 12, and has a simple structure and a firm assembly, and is elastic.
- the diaphragm 20 can also function as a seal to improve the connection sealing effect of the first housing 11 and the second housing 12.
- the two sides of the outer peripheral edge of the elastic diaphragm 20 respectively seal the protrusions, and the sealing protrusions extend in a ring shape along the circumferential direction of the elastic diaphragm 20, the first housing 11 and the first The two housings 12 are respectively abutted against corresponding sealing projections.
- the first housing 11 may be abutted against a sealing protrusion of the outer peripheral edge of the elastic diaphragm 20 facing the one side surface of the first housing 11, and the second housing 12 may be located at the outer periphery of the elastic diaphragm 20
- the sealing projection facing the one side surface of the second housing 12 is stopped. Thereby, the sealing effect can be further improved, and water leakage can be prevented more effectively.
- the number of the sealing protrusions provided on each side of the elastic diaphragm 20 is not particularly limited, and may be one or plural.
- the sealing protrusions are plural, a plurality of sealing protrusions They may be spaced apart in the radial direction of the elastic diaphragm 20 to further enhance the sealing effect.
- the liquid dispensing device 100 includes a housing 10, an elastic diaphragm 20, an inlet valve 31, an outlet valve 32, an elastic member 40, and a support plate 50.
- the outer casing 10 includes a first casing 11 and a second casing 12, and the second casing 12 is inserted into the first casing 11.
- the first housing 11 is provided with a first liquid inlet 101 and a first liquid outlet 102.
- the first liquid inlet 101 and the first liquid outlet 102 are arranged side by side, and the liquid inlet valve 31 and the liquid outlet valve 32 are used.
- the same check valve is installed in the opposite direction to achieve one-way inlet and one-way discharge, respectively.
- the first liquid inlet 101 and the first liquid outlet 10 are respectively formed with a tubular structure, and the outer circumferential surface of the tubular structure is sleeved with a sealing ring to facilitate reliable and sealed connection with other components.
- the second housing 12 is provided with a second liquid inlet 103 and a second liquid outlet 104.
- the second housing 12 is formed with a tube body extending substantially in the horizontal direction.
- the second liquid inlet 103 is disposed at the end of the tube body and the opening faces the horizontal direction.
- the second liquid outlet 104 is provided. It is disposed on the side wall of the pipe body and the opening is vertically upward.
- the second liquid outlet 104 can also be disposed at any position communicating with the second liquid inlet 103 to form an overflow device, that is, the liquid can be from the first
- the two inlet port 103 enters and can overflow from the second liquid outlet 104.
- the elastic diaphragm 20 is disposed in the cavity and divides the cavity into a first sub-cavity 110 and a second sub-cavity 120, the first sub-cavity 110 It can be used as a reservoir chamber, and the second sub-chamber 120 can serve as a pressure chamber.
- An arcuate convex portion 210 is formed at a position adjacent to the outer peripheral edge of the elastic diaphragm 20, and the support plate 50 is disposed on a side surface of the elastic diaphragm 20 facing the first sub-cavity 110, and the edge of the support plate 50 is provided
- An arcuate flange 51 extending outwardly and away from the second sub-cavity 120, the inner end of the arcuate flange 51 is abutted against the arcuate projection 210 and the outer end is spaced apart from the arcuate projection 210.
- a central portion of the support plate 50 facing away from the one side surface of the elastic diaphragm 20 is provided with a limiting ring.
- the elastic member 40 is a conical spring and is placed in a vertical direction, and the small end of the conical spring is sleeved on the limiting ring. The large end of the conical spring abuts against the inner wall surface of the first housing 11.
- the liquid delivery device 100 is a device for performing liquid delivery using the pressure of a liquid (eg, water).
- a liquid with a certain pressure enters the second sub-cavity 120 through the second liquid inlet 103, and in the second sub-cavity 120.
- a certain pressure is formed therein, and then the elastic diaphragm 20 is pushed upward to reduce the volume of the first sub-chamber 110, forcing the liquid in the first sub-chamber 110 to be discharged through the first liquid outlet 102 through the liquid outlet valve 32.
- the elastic diaphragm 20 moves downward under the action of the conical spring.
- the volume of the first sub-chamber 110 increases to form a negative pressure, and the liquid passes through the first liquid inlet 101.
- the inlet valve 31 enters the reservoir chamber, and the water in the second sub-chamber 120 is discharged through the second outlet port 104, and is dosed at a time, and can be dispensed as many times as needed.
- a laundry treating apparatus includes a liquid dispensing apparatus 100 according to an embodiment of the present invention, and since the liquid dispensing apparatus 100 according to an embodiment of the present invention has the above-described advantageous technical effects, the laundry treating apparatus according to an embodiment of the present invention may Realize each quantitative delivery, the delivery effect is good, the structure is simple, the cost is low, and the delivery is more accurate.
- the laundry treating apparatus may be a pulsator washing machine, a drum washing machine, or a washing and drying machine, and the first liquid outlet 102 may communicate with the washing tub of the laundry treating apparatus.
- Other configurations and operations of the laundry treating apparatus according to embodiments of the present invention will be known to those skilled in the art and will not be described in detail herein.
- the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
- the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly contacted through an intermediate medium.
- the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For The specific meanings of the above terms in the present invention can be understood by those skilled in the art on a case-by-case basis.
- the description of the terms “embodiment” or “example” or the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. .
- the schematic representation of the above terms is not necessarily directed to the same embodiment or example.
- the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
- various embodiments or examples described in the specification, as well as features of various embodiments or examples may be combined and combined.
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Abstract
一种液体投放装置和具有该装置的衣物处理设备，该装置包括：外壳(10)，外壳内限定有空腔，空腔具有第一进液口(101)、第二进液口(103)、第一出液口(102)和第二出液口(104)；弹性膜片(20)，弹性膜片设在空腔内以将空腔分成第一子腔(110)和第二子腔(120)，第一进液口和第一出液口分别与第一子腔连通，第二进液口和第二出液口分别与第二子腔连通，第二出液口的通流面积小于第二进液口的通流面积，弹性膜片在弹性力和进入第二子腔的液体的压力下可弹性变形以改变第一子腔的容积；进液阀(31)和出液阀(32)，进液阀和出液阀分别设在第一进液口和第一出液口处，进液阀和出液阀分别为单向阀；该液体投放装置可实现定量投放，投放效果好，结构较简单，成本较低且投放精度较高。
Description
本发明涉及衣物处理技术领域，更具体地，涉及一种液体投放装置和具有其的衣物处理设备。
随着洗衣机自动化水平的提高，越来越多的洗衣机添加了自动投放功能。在相关技术中，一些洗衣机的自动投放通过电动泵实现洗涤剂的投放，但是这种投放方法成本过高。还有一些洗衣机采用文丘里原理实现洗涤剂的自动投放，但是投放精度不高。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出了一种液体投放装置，所述液体投放装置成本较低且投放效果好。
本发明还提出了一种具有上述液体投放装置的衣物处理设备。
本发明提出的液体投放装置，包括：外壳，所述外壳内限定有空腔，所述空腔具有第一进液口、第二进液口、第一出液口和第二出液口；弹性膜片，所述弹性膜片设在所述空腔内以将所述空腔分成第一子腔和第二子腔，所述第一进液口和所述第一出液口分别与所述第一子腔连通，所述第二进液口和所述第二出液口分别与所述第二子腔连通，第二出液口的通流面积小于第二进液口的通流面积，所述弹性膜片在所述弹性力和进入所述第二子腔的液体的压力下可弹性变形以改变所述第一子腔的容积；进液阀和出液阀，所述进液阀和所述出液阀分别设在所述第一进液口和所述第一出液口处，所述进液阀和所述出液阀分别为单向阀。
本发明提出的液体投放装置可以实现定量投放，投放效果好，结构较简单，成本较低且投放精度较高。
另外，本发明提出的液体投放装置还可以具有如下附加的技术特征：
在本发明的一些实施例中，液体投放装置还包括：弹性件，所述弹性件设在所述第一子腔内且与所述弹性膜片相连，以向所述弹性膜片提供弹性力。
在本发明的一些实施例中，液体投放装置还包括：支撑板，所述支撑板设在所述弹性膜片的位于所述第一子腔的一侧表面上，所述弹性件支撑在所述支撑板上。
在本发明的一些实施例中，所述弹性膜片的边沿形成有向所述第一子腔内凸出且开口朝向所述第二子腔的弧形凸部，所述支撑板的边沿设有弧形翻边，所述弧形翻边设在所述
弧形凸部的凸面侧，所述弧形翻边的内端与所述弧形凸部接触且外端与所述弧形凸部间隔开。
在本发明的一些实施例中，所述弹性件形成为螺旋弹簧，所述螺旋弹簧的两端分别止抵在所述第一子腔的内壁面和所述支撑板上。
在本发明的一些实施例中，所述螺旋弹簧为锥形弹簧。
在本发明的一些实施例中，液体投放装置还包括：用于在所述弹性膜片向所述第一子腔内变形时进行限位的第一限位部，所述第一限位部设在所述支撑板和所述第一子腔的内壁面的至少一个上。
在本发明的一些实施例中，所述第一限位部形成为设在所述支撑板上且中空设置的限位柱。
在本发明的一些实施例中，液体投放装置还包括：用于在所述弹性膜片向所述第二子腔内变形时进行限位的第二限位部，所述第二限位部设在所述弹性膜片和所述第二子腔的内壁面的至少一个上。
在本发明的一些实施例中，所述外壳包括：第一壳体，所述第一壳体上设有所述第一进液口和所述第一出液口；第二壳体，所述第一壳体和所述第二壳体相连且配合形成所述空腔，所述弹性膜片的外周沿夹设在所述第一壳体和所述第二壳体之间，所述第二进液口和所述第二进液口设在所述第二壳体上。
进一步地，所述弹性膜片的外周沿的两侧表面上分别设有沿其周向延伸成环形的密封凸起，所述第一壳体和所述第二壳体分别与对应的所述密封凸起止抵。
在本发明的一些实施例中，所述弹性膜片为橡胶膜片。
本发明提出的衣物处理设备，包括根据本发明提出的液体投放装置。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
图1是根据本发明实施例的液体投放装置的结构示意图。
附图标记：
液体投放装置100；
外壳10；第一壳体11；第二壳体12；
弹性膜片20；弧形凸部210；
进液阀31；出液阀32；
弹性件40；支撑板50；弧形翻边51；
第一进液口101；第一出液口102；第二进液口103；第二出液口104；
第一子腔110；第二子腔120；
第一限位部71；第二限位部72。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。
下面结合附图详细描述根据本发明实施例的液体投放装置100。
参照图1所示，根据本发明实施例的液体投放装置100可包括：外壳10、弹性膜片20、进液阀31和出液阀32。
外壳10内限定有空腔，空腔具有第一进液口101、第二进液口103、第一出液口102和第二出液口104。弹性膜片20设在空腔内以将空腔分成第一子腔110和第二子腔120，第一进液口101和第一出液口102分别与第一子腔110连通，第二进液口103和第二出液口104分别与第二子腔120连通。
也就是说，第一进液口101作为第一子腔110的进液口，第一出液口102作为第一子腔110的出液口，第二进液口103作为第二子腔120的进液口，第二出液口104作为第二子腔120的出液口。其中，第二出液口104的通流面积小于第二进液口103的通流面积，以避免液体直接从第二出液口104流出，不能在第二子腔120内储存。在本发明中，对于第一进液口101、第一出液口102、第二进液口103和第二出液口104的具体设置位置不做特殊限制。
进液阀31设在第一进液口101处，出液阀32设在第一出液口102处，进液阀31和出液阀32分别为单向阀。也就是说，液体只能从第一进液口101进入，而不能从第一进液口101流出，同样，液体只能从第一出液口102流出，而不能从第一出液口102流入。弹性膜片20在弹性力和进入第二子腔120的液体的压力下可弹性变形以改变第一子腔110的容积。
具体而言，当从第二进液口103向第二子腔120中冲入带有一定压力的液体时，液体对弹性膜片20具有朝向第一子腔110的压力，使弹性膜片20克服弹性力向第一子腔110内发生变形，第一子腔110的容积变小，当第一子腔110中含有液体时，液体在推压下可以通过出液阀32从第一出液口102排出。
当带有一定压力的水断开时，弹性膜片20失去压力作用，弹性膜片20在弹性力作用下恢复至原位置，其中，在弹性膜片20恢复的过程中，第一子腔110的容积逐渐变大，形
成负压，液体可以经过进液阀31从第一进液口101进入到第一子腔110中，同时，第二子腔120中的水可以通过第二出液口104排出。
由此，根据本发明实施例的液体投放装置100可以利用水压作为驱动力，并利用弹性膜片改变第一子腔110的容积实现抽取液体，可以实现每次定量投放，根据需要可多次投放，投放效果好，结构较简单、无需设置专门的流量检测装置等进行流量控制，成本较低且投放较准确，同时膜片又具有密封功能，可以提高液体投放装置100的密封性。
弹性膜片20可以采用多种材质制成。例如，弹性膜片20可以为橡胶膜片。橡胶膜片弹性较好，使用寿命长且成本较低。当然，弹性膜片20还可以采用其它弹性材料制成，这对本领域技术人员来说是可以理解的，在此不再详细描述。
有利地，根据本发明实施例的液体投放装置100还可以包括弹性件40，如图1所示，弹性件40设在第一子腔110内并且与弹性膜片20相连，以向弹性膜片20提供弹性力。当液体投放装置100没有弹性件40时，弹性膜片20可以在自身弹性力和液体压力下发生变形。当液体投放装置100具有弹性件40时，弹性件40可以向弹性膜片20补充弹性力，弥补弹性膜片20的自身弹性力的不足，保证弹性力充分，使弹性膜片20在失去液体的压力后可以及时恢复至原位置，以实现及时且准确的进液，液体投放装置100的工作可靠性较高。
进一步地，液体投放装置100还可以包括支撑板50，如图1所示，支撑板50可设在弹性膜片20的位于第一子腔110的一侧表面上，弹性件40支撑在支撑板50上。支撑板50可以对弹性膜片20起到支撑作用，保证弹性膜片20的形状稳定性，同时能够将弹性件40的弹力传递给弹性膜片20，施力更均匀，弹性膜片20的变形性好，可以提高液体投放的精准度。
如图1所示，弹性膜片20的边沿形成有弧形凸部210，弧形凸部210向第一子腔110内凸出并且开口朝向第二子腔120。也就是说，弧形凸部210形成为一面凸且另一面凹的结构，凸面朝向第一子腔110，凹面朝向第二子腔120。由此，弧形凸部210比较容易发生变形并且也容易恢复原状，可以提高弹性膜片20的可变形性和恢复原状的能力，提高投放效果。
进一步地，支撑板50的边沿设有弧形翻边51，弧形翻边51设在弧形凸部210的凸面侧，弧形翻边51的内端与弧形凸部210接触，弧形翻边51的外端与弧形凸部210间隔开。这里，弧形翻边51的内端即邻近所述支撑板50的中部的一端，弧形翻边51的外端即远离支撑板50的中部的一端。
由此，可以提高支撑板50与弹性膜片20的固定效果，并且支撑板50上的弧形翻边51可以对弧形凸部210构成止挡，避免弧形凸部210变形过度，进一步提高弹性膜片20的变
形效果，提高投放的精准性和可靠性。并且，如图1所示，弧形翻边51形成为朝向第二子腔120凹陷弯曲的弧形，弧形翻边51大致沿着弧形凸部210的凸面的延伸方向延伸，在正常状态下，弧形翻边51的外端不与弧形凸部210止抵并且在弧形凸部210变形至一定程度时可以与弧形凸部210接触，可以减小弧形凸部210变形时的摩擦，保证弧形凸部210较好的变形性以及止挡效果。
在本发明中，对于弹性件40的具体结构不做特殊限制。如图1所示，在本发明的一些实施例中，弹性件40可形成为螺旋弹簧，螺旋弹簧的两端分别止抵在第一子腔110的内壁面和支撑板50上。螺旋弹簧变形性好，方便安装且成本较低，同时对液体的流动干扰性小。
进一步地，螺旋弹簧可以为锥形弹簧。锥形弹簧可以理解为一端尺寸大且另一端尺寸小的尺寸逐渐变化的螺旋弹簧，变形性更好，可靠性更高。在具体安装时，螺旋弹簧的大头端可以与支撑板50相连，螺旋弹簧的小头端可以与第一子腔110的内壁面相连，当然，也可以采用图1中所示的安装方式，即将螺旋弹簧的小头端止抵在支撑板50上，大头端止抵在第一子腔110的内壁面上。
为了进一步提高弹性膜片20的变形准确程度，可选地，液体投放装置100还可以包括第一限位部71，第一限位部71可以在弹性膜片20向第一子腔110内变形时进行限位，如图1所示，第一限位部71可以设在支撑板50上，当弹性膜片20在弹性力和液体压力的作用下向第一子腔110内变形时，第一限位部71相应移动，当移动至一定程度时，第一限位部71可以与第一子腔110的内壁面止抵，限制弹性膜片20进一步变形，限位效果好。
在本发明中，第一限位部71不仅限于设置在支撑板50上，还可以设置在第一子腔110的内壁面上，同样可以起到较好的限位效果。在本发明的一些未示出的实施例中，支撑板50和第一子腔110的内壁面上均设置有第一限位部71，限位效果好。
第一限位部71的结构可形成为多种，可选地，第一限位部71可形成为设在支撑板50上并且向第一子腔110内凸出限位环。如图1所示，限位环设在支撑板50的背向弹性膜片20的一侧表面上，限位环内具有轴向延伸且开口背向弹性膜片20的中空槽。
由此，不仅可以起到较好的限位效果，而且第一限位部71的整体体积较小，可以减少对第一子腔110容积的占用，使第一子腔110中可以充入较多的液体。同时，当弹性件40为螺旋弹簧时，螺旋弹簧可以套设在限位柱上，可以进一步提高螺旋弹簧的安装准确性和可靠性。
进一步地，液体投放装置100还可以包括第二限位部72，第二限位部72设在第二子腔120的内壁面上，第二限位部72可以在弹性膜片20向第二子腔120内变形时起到限位作用。具体地，当弹性膜片20变形至与第二限位部72接触时，第二限位部72可以限制弹性膜片20的进一步变形，进一步提高弹性膜片20的变形准确性。
可选地，第二限位部72还可以设置在弹性膜片20上。也就是说，第二限位部72可以设在弹性膜片20和第二子腔120的内壁面的至少一个上，具体设置位置可以根据情况灵活设置。第二限位部72可以为限位块，限位块可包括间隔开设置的多个，以进一步提高限位效果。在实际中，可以利用第一限位部71和/或第二限位部72控制弹性膜片20的运动范围，以调节每次输送液体的量，调节较方便。
如图1所示，外壳10可以包括第一壳体11和第二壳体12，第一壳体11上设有第一进液口101和第一出液口102，第二进液口103和第二进液口103设在第二壳体12上。第一壳体11和第二壳体12相连且配合形成空腔，弹性膜片20的外周沿夹设在第一壳体11和第二壳体12之间，结构简单且装配牢固，并且弹性膜片20还可以起到密封作用，提高第一壳体11和第二壳体12的连接密封效果。
进一步地，在本发明一些具体示例中，弹性膜片20的外周沿的两侧表面上分别密封凸起，密封凸起沿弹性膜片20的周向延伸成环形，第一壳体11和第二壳体12分别与对应的密封凸起止抵。具体地，第一壳体11可以与位于弹性膜片20的外周沿的朝向第一壳体11的一侧表面的密封凸起止抵，第二壳体12可以与位于弹性膜片20的外周沿的朝向第二壳体12的一侧表面的密封凸起止抵。由此，可以进一步提高密封效果，更有效地防止漏水。
在本发明中，对于弹性膜片20的每个侧面上设置的密封凸起的数量不做特殊限制，可以为一个，也可以为多个，当密封凸起为多个时，多个密封凸起可以沿弹性膜片20的径向间隔开设置，以进一步提高密封效果。
图1中示出了根据本发明实施例的液体投放装置100的一个具体示例。如图1所示，液体投放装置100包括外壳10、弹性膜片20、进液阀31、出液阀32、弹性件40和支撑板50。
外壳10包括第一壳体11和第二壳体12，第二壳体12插接在第一壳体11内。第一壳体11上设置有第一进液口101和第一出液口102，其中，第一进液口101和第一出液口102并列设置，进液阀31和出液阀32采用相同的单向阀，并且安装方向相反，以分别实现单向进液和单向出液。第一进液口101和第一出液口10处分别形成有为管体结构，管体结构的外周面上套设有密封圈，以方便与其它部件实现可靠且密封的连接。
第二壳体12上设有第二进液口103和第二出液口104。其中，第二壳体12上形成有大致沿水平方向延伸的管体，第二进液口103设在管体的端部且开口朝向水平方向，在本实施例中，第二出液口104设在管体的侧壁上且开口竖直向上，当然，第二出液口104也可以设在与第二进液口103连通的任意位置上，以形成溢流装置，即液体可以从第二进液口103进入，并可从第二出液口104溢出。
弹性膜片20设在空腔内，并且将空腔分成第一子腔110和第二子腔120，第一子腔110
可以作为储液腔，第二子腔120可以作为压力腔。弹性膜片20的邻近外周沿的位置处弯曲形成有弧形凸部210，支撑板50设在弹性膜片20的面向第一子腔110的一侧表面上，并且支撑板50的边沿设有向外且向远离第二子腔120的方向延伸的弧形翻边51，弧形翻边51的内端与弧形凸部210止抵且外端与弧形凸部210间隔开。
支撑板50的背向弹性膜片20的一侧表面的中部设有限位环，弹性件40为锥形弹簧并且沿竖直方向放置，锥形弹簧的小头端套设在限位环上，锥形弹簧的大头端止抵在第一壳体11的内壁面上。
该液体投放装置100是利用液体(例如，水)的压力进行液体输送的一种装置，首先带有一定压力的液体通过第二进液口103进入第二子腔120，在第二子腔120内形成一定压力，然后推动弹性膜片20向上运动，使第一子腔110的容积减小，迫使第一子腔110内的液体通过出液阀32经第一出液口102排出。当带有一定压力的水断开时，在锥形弹簧的作用下，弹性膜片20向下运动，此时第一子腔110的容积增加形成负压，液体从第一进液口101通过进液阀31进入储液腔，同时第二子腔120中的水通过第二出液口104排出,每次定量投放，根据需要可多次投放。
根据本发明实施例的衣物处理设备包括根据本发明实施例的液体投放装置100，由于根据本发明实施例的液体投放装置100具有上述有益的技术效果，因此根据本发明实施例的衣物处理设备可以实现每次定量投放，投放效果好，结构较简单、成本较低且投放较准确。
根据本发明实施例的衣物处理设备可以为波轮洗衣机，也可以为滚筒洗衣机，还可以为洗干一体机，第一出液口102可以与衣物处理设备的洗涤筒连通。根据本发明实施例的衣物处理设备的其他构成以及操作对于本领域的普通技术人员来说是可知的，在此不再详细描述。
在本发明的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“顶”、“底”、“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，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于
本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，参考术语“实施例”或“示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
Claims (13)
- 一种液体投放装置，其特征在于，包括：外壳，所述外壳内限定有空腔，所述空腔具有第一进液口、第二进液口、第一出液口和第二出液口；弹性膜片，所述弹性膜片设在所述空腔内以将所述空腔分成第一子腔和第二子腔，所述第一进液口和所述第一出液口分别与所述第一子腔连通，所述第二进液口和所述第二出液口分别与所述第二子腔连通，第二出液口的通流面积小于第二进液口的通流面积，所述弹性膜片在弹性力和进入所述第二子腔的液体的压力下可弹性变形以改变所述第一子腔的容积；进液阀和出液阀，所述进液阀和所述出液阀分别设在所述第一进液口和所述第一出液口处，所述进液阀和所述出液阀分别为单向阀。
- 根据权利要求1所述的液体投放装置，其特征在于，还包括：弹性件，所述弹性件设在所述第一子腔内且与所述弹性膜片相连，以向所述弹性膜片提供弹性力。
- 根据权利要求2所述的液体投放装置，其特征在于，还包括：支撑板，所述支撑板设在所述弹性膜片的位于所述第一子腔的一侧表面上，所述弹性件支撑在所述支撑板上。
- 根据权利要求3所述的液体投放装置，其特征在于，所述弹性膜片的边沿形成有向所述第一子腔内凸出且开口朝向所述第二子腔的弧形凸部，所述支撑板的边沿设有弧形翻边，所述弧形翻边设在所述弧形凸部的凸面侧，所述弧形翻边的内端与所述弧形凸部接触且外端与所述弧形凸部间隔开。
- 根据权利要求3或4所述的液体投放装置，其特征在于，所述弹性件为螺旋弹簧，所述螺旋弹簧的两端分别止抵在所述第一子腔的内壁面和所述支撑板上。
- 根据权利要求5所述的液体投放装置，其特征在于，所述螺旋弹簧为锥形弹簧。
- 根据权利要求3-6中任一项所述的液体投放装置，其特征在于，还包括：用于在所述弹性膜片向所述第一子腔内变形时进行限位的第一限位部，所述第一限位部设在所述支撑板和所述第一子腔的内壁面的至少一个上。
- 根据权利要求7所述的液体投放装置，其特征在于，所述第一限位部形成为设在所述支撑板上且向所述第一子腔内凸出的限位环。
- 根据权利要求1-8中任一项所述的液体投放装置，其特征在于，还包括：用于在所述弹性膜片向所述第二子腔内变形时进行限位的第二限位部，所述第二限位部设在所述弹性膜片和所述第二子腔的内壁面的至少一个上。
- 根据权利要求1-9中任一项所述的液体投放装置，其特征在于，所述外壳包括：第一壳体，所述第一壳体上设有所述第一进液口和所述第一出液口；第二壳体，所述第一壳体和所述第二壳体相连且配合形成所述空腔，所述弹性膜片的外周沿夹设在所述第一壳体和所述第二壳体之间，所述第二进液口和所述第二进液口设在所述第二壳体上。
- 根据权利要求10所述的液体投放装置，其特征在于，所述弹性膜片的外周沿的两侧表面上分别设有沿其周向延伸成环形的密封凸起，所述第一壳体和所述第二壳体分别与对应的所述密封凸起止抵。
- 根据权利要求1-11中任一项所述的液体投放装置，其特征在于，所述弹性膜片为橡胶膜片。
- 一种衣物处理设备，其特征在于，包括根据权利要求1-12中任一项所述的液体投放装置。
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| CN106894203B (zh) * | 2017-02-27 | 2020-05-19 | 无锡小天鹅电器有限公司 | 液体投放装置和具有其的衣物处理设备 |
| CN109423844B (zh) * | 2017-08-25 | 2022-05-13 | 青岛海尔洗涤电器有限公司 | 衣物处理剂投放装置及洗衣机 |
| CN109423841B (zh) * | 2017-08-25 | 2024-08-23 | 青岛海尔洗涤电器有限公司 | 衣物处理剂投放装置、洗衣机及其控制方法 |
| CN109423842B (zh) * | 2017-08-25 | 2022-05-13 | 重庆海尔滚筒洗衣机有限公司 | 衣物处理剂投放装置及洗衣机 |
| CN109423843B (zh) * | 2017-08-25 | 2022-05-13 | 青岛海尔洗涤电器有限公司 | 衣物处理剂投放装置及洗衣机 |
| CN109505100B (zh) * | 2017-09-14 | 2022-01-04 | 合肥海尔滚筒洗衣机有限公司 | 衣物处理剂投放装置、洗衣机及其控制方法 |
| CN109750454B (zh) * | 2017-11-03 | 2022-08-30 | 青岛海尔洗涤电器有限公司 | 衣物处理剂投放装置、洗衣机及其控制方法 |
| CN109750456B (zh) * | 2017-11-03 | 2022-09-23 | 青岛海尔洗涤电器有限公司 | 衣物处理剂投放装置、洗衣机及其控制方法 |
| CN109750455B (zh) * | 2017-11-03 | 2022-09-27 | 重庆海尔滚筒洗衣机有限公司 | 一种洗衣机及其衣物处理剂投放控制方法 |
| CN109750453B (zh) * | 2017-11-03 | 2023-07-14 | 青岛海尔洗涤电器有限公司 | 一种洗衣机及其衣物处理剂投放控制方法 |
| CN109868619B (zh) * | 2017-12-01 | 2023-08-01 | 青岛海尔洗涤电器有限公司 | 衣物处理剂储放投放装置及洗衣机 |
| CN109868620B (zh) * | 2017-12-01 | 2023-08-01 | 青岛海尔洗涤电器有限公司 | 衣物处理剂储放投放装置及洗衣机 |
| WO2019109958A1 (zh) * | 2017-12-07 | 2019-06-13 | 青岛海尔滚筒洗衣机有限公司 | 衣物处理剂储放投放装置、洗衣机及其衣物处理剂投放控制方法 |
| CN109898276B (zh) * | 2017-12-07 | 2023-03-14 | 青岛海尔洗涤电器有限公司 | 一种洗衣机的衣物处理剂投放控制方法 |
| CN109898277B (zh) * | 2017-12-07 | 2023-04-07 | 青岛海尔洗涤电器有限公司 | 一种洗衣机的衣物处理剂投放控制方法 |
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