CN215210082U - Automatic washing auxiliary agent feeding device of washing machine and washing machine - Google Patents

Abstract

The utility model provides an automatic device and washing machine of puting in washing auxiliary agent of washing machine, the automatic device of puting in washing auxiliary agent of washing machine includes two at least washtubs, is first washtub, second washtub respectively, still includes one set at least input system, input system includes water intaking valve, venturi, second change-over valve and constant volume device and detergent auxiliary agent box, venturi with constant volume device intercommunication, venturi can be respectively to first washtub, second washtub water injection through the second change-over valve, the constant volume device with detergent auxiliary agent box intercommunication, the constant volume device is in under venturi's the effect, can be respectively to the automatic washing auxiliary agent in the detergent auxiliary agent box of puting in first washtub, the second washtub. Automatic device of puting in washing auxiliary agent of washing machine, be applicable to the automatic input of many barrels of detergents, simple structure, easily control puts in accurate, reliable.

Description

Automatic washing auxiliary agent feeding device of washing machine and washing machine

Technical Field

The utility model relates to a washing machine technical field, in particular to automatic device and washing machine of puting in washing auxiliary agent of washing machine.

Background

In the prior art, a washing aid box is arranged on a washing machine and has an automatic feeding function. However, most of the washing aids are dosed by a pump, which consumes electric energy, and how to realize quantitative dosing is a problem to be solved by the skilled person.

CN203334042U discloses a washing machine capable of automatically adding additives, which comprises a water inlet valve, a washing barrel and at least one container for holding additives, wherein a venturi tube capable of generating negative pressure by water flowing through is arranged in a washing water inlet waterway between the water inlet valve and the washing barrel, a liquid suction port communicated with the container and used for sucking additives by negative pressure into the washing water inlet waterway is arranged corresponding to a negative pressure region, a metering device for detecting the adding amount of additives and an additive control valve for controlling the on-off of the metering device and the container are arranged between the liquid suction port and the container. When the additive is put in, the washing water inlet waterway feeds water into the washing barrel, the additive in the container is pumped out by utilizing the negative pressure generated when water flow passes through the Venturi tube, and the additive is metered by the metering device and then enters the washing water inlet waterway from the liquid pumping port and then is flushed into the washing barrel by the water inlet waterway. The metering device is used for measuring liquid, mainly measures water accurately, and measures other liquid and has inaccurate problem. In the application, the measuring device measures the detergent stock solution, the measurement is inaccurate, meanwhile, when the measuring device is washed, a branch is separated from a water inlet waterway, one way of water flow directly enters the washing barrel, the other way of water flow passes through the water quantity measuring device and is sucked into the water inlet waterway through the negative pressure principle of a Venturi tube to wash the water flow into the washing barrel, therefore, the water for washing the metering device is only one branch in the whole water path, the washing time of the water metering device is prolonged due to small water flow, and simultaneously, the detergent which is not absorbed by the venturi tube exists between the water quantity metering device and the detergent control valve, when the water quantity metering device is washed, the washed water solution with the detergent can enter the cleaning water circuit, namely, a part of residual detergent forms a circulation between the cleaning water path and the water inlet water path, so that the metering device is difficult to clean completely, the detergent is wasted, and the metering accuracy is influenced.

The washing machine is provided with a liquid feeding box which has an automatic feeding function. However, for the washing machine with two or more drums, most of the detergent is put in through a single putting device, the structure is complex, more electric energy is consumed, and the washing machine is not convenient for large-scale popularization and application.

In view of this, the present invention is proposed.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a device for automatically adding detergent additives to a washing machine and a washing machine, so as to solve at least one of the above technical problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides an automatic device of puting in washing agent of washing machine, includes two at least washtubs, is first washtub, second washtub respectively, still includes one set at least input system, input system includes water intaking valve, venturi, second change-over valve and constant volume device and detergent auxiliary agent box, venturi with constant volume device intercommunication, venturi can be respectively to first washtub, second washtub water injection through the second change-over valve, constant volume device with detergent auxiliary agent box intercommunication, the constant volume device is in under venturi's the effect, can be respectively to the automatic washing auxiliary agent in the dropping in detergent auxiliary agent box in first washtub, the second washtub, and/or, the constant volume device can be respectively to water injection in first washtub, the second washtub.

Further, a flow regulating valve is provided between the venturi tube and the second switching valve.

Furthermore, the venturi tube is provided with a water inlet portion and a water outlet portion, the water inlet portion is connected with the water inlet tube, the water outlet portion is connected with the water outlet tube, a throat portion is arranged between the water inlet portion and the water outlet portion, negative pressure can be generated at the throat portion in the process that water flows from the water inlet portion to the water outlet portion, one end of the throat portion is connected with a detergent auxiliary box through a detergent auxiliary tube, the constant volume device is arranged on the detergent auxiliary tube, and washing auxiliaries in the constant volume device respectively flow to the first washing barrel and the second washing barrel through the control of the first switching valve.

Furthermore, a washing assistant control valve is arranged between the constant volume device and the detergent assistant box.

Further, a one-way valve is arranged between the constant volume device and the first conversion valve.

Further, the constant volume device is a constant volume cavity, or the constant volume device is a flow meter.

The automatic detergent feeding device comprises at least two sets of feeding systems, wherein each set of feeding system comprises a first water inlet valve, a second water inlet valve, a first venturi tube, a second venturi tube, a constant volume device, a first flow regulating valve, a second flow regulating valve, a detergent auxiliary control valve and a detergent auxiliary box, and the first water inlet valve, the first venturi tube, the first constant volume device, the first detergent auxiliary control valve, the first flow regulating valve and the first one-way valve form a set of feeding system for automatically feeding detergent into the second washing barrel; the second water inlet valve, the second venturi tube, the second constant volume device, the second flow regulating valve, the second washing assistant control valve and the second one-way valve form a set of feeding system for automatically feeding the washing agent into the first washing barrel, and the two sets of feeding systems share one washing agent assistant box, or the two sets of feeding systems are respectively communicated with one washing agent assistant box.

Further comprises at least two sets of feeding systems, wherein the two sets of feeding systems comprise a first water inlet valve, a second water inlet valve, a first Venturi tube, a second Venturi tube, a constant volume device, a first flow regulating valve, a second flow regulating valve, a washing assistant control valve and a washing assistant box, wherein the first Venturi tube and the second Venturi tube are communicated with a constant volume device through a pipeline, the constant volume device is communicated with a detergent auxiliary agent box, the constant volume device and the detergent auxiliary agent box are provided with a washing auxiliary agent control valve, the first water inlet valve flows to the first Venturi tube through a water inlet pipeline, the first flow regulating valve flows to the second washing barrel through a water outlet pipeline, the second water inlet valve flows to the second Venturi tube through a water inlet pipeline, the second flow regulating valve flows to the first washing barrel through a water outlet pipeline, the dosing agent in the constant volume device flows to the first washing barrel and/or the second washing barrel through the one-way valve and the first conversion valve.

Furthermore, a first water metering device is arranged between the constant volume device and the first Venturi tube, and a second water metering device is arranged between the constant volume device and the second Venturi tube.

Compared with the prior art, the automatic device of puting in washing auxiliary agent of washing machine have following advantage:

(1) the utility model discloses an automatic device of puting in washing agent of washing machine, through the constant volume device that sets up and the absorption pipeline of constant volume device and puting in the pipeline, avoid the washing agent to flow through water metering device, the structure is more reasonable, has improved the efficiency of puting in of washing agent, has reduced the waste of washing agent rinsing water, reduces washing agent input time to the realization is to the automatic reliability of puting in the washing agent auxiliary agent in two at least washtubs.

(2) Automatic device of puting in washing auxiliary agent of washing machine, be applicable to the automatic input of many barrels of detergents, simple structure, easily control puts in accurate, reliable.

Another object of the present invention is to provide a washing machine, wherein the washing machine is provided with a device for automatically putting in washing assistant.

Compared with the prior art, the washing machine and the device for automatically adding the washing assistant into the washing machine have the same advantages, and are not repeated herein.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic diagram of an automatic detergent auxiliary feeding device for a washing machine and a feeding state of a detergent box of a washing machine according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an automatic detergent auxiliary feeding device of a washing machine and a cleaning state of a detergent box of a washing machine according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of the device for automatically adding washing assistant in a washing machine and the washing assistant box of the washing machine according to the first embodiment of the present invention in a second adding state;

FIG. 4 is a schematic diagram of the washing assistant box of the first embodiment of the washing machine and the device for automatically adding washing assistant of the washing machine of the present invention in a second cleaning state;

FIG. 5 is a schematic diagram of an automatic detergent auxiliary feeding device for a washing machine and a detergent box feeding state of a washing machine according to a second embodiment of the present invention;

FIG. 6 is a schematic diagram of an automatic detergent auxiliary feeding device for a washing machine and a cleaning state of a detergent box of a washing machine according to a second embodiment of the present invention;

FIG. 7 is a schematic diagram of an automatic detergent auxiliary feeding device of a washing machine and a second feeding state of a detergent box of a second embodiment of the washing machine according to the present invention;

FIG. 8 is a schematic diagram of the washing assistant box of the second embodiment of the washing machine and the device for automatically adding washing assistant of the present invention;

FIG. 9 is a schematic diagram of an automatic detergent auxiliary feeding device for a washing machine and a detergent box feeding state of a washing machine according to a third embodiment of the present invention;

FIG. 10 is a schematic diagram of an automatic detergent auxiliary feeding device for a washing machine and a cleaning state of a detergent box of a washing machine according to a third embodiment of the present invention;

FIG. 11 is a schematic diagram of a washing assistant box of a third embodiment of an automatic washing assistant feeding device of a washing machine and a washing machine according to the present invention in a second feeding state;

FIG. 12 is a schematic diagram of a washing assistant box of a third embodiment of an automatic washing assistant feeding device for a washing machine and a washing machine according to the present invention in a second cleaning state;

for better understanding of the present invention, the parts of the device for automatically dispensing washing assistant in the present invention are given reference numerals below, wherein the water inlet valve 1, the first water inlet valve 1-1, the second water inlet valve 1-2, the venturi tube 2, the first venturi tube 2-1, the second venturi tube 2-2, the constant volume device 3, the first constant volume device 3-1, the second constant volume device 3-2, the first washing tub 4, the second washing tub 5, the flow regulating valve 6, the first flow regulating valve 6-1, the second flow regulating valve 6-2, the water volume metering device 7, the first water volume metering device 7-1, the second water volume metering device 7-2, the washing assistant control valve 8, the first washing assistant control valve 8-1, the second washing assistant control valve 8-2, the check valve 9, the first check valve 9-1, a second one-way valve 9-2, a second change-over valve 10, a detergent assistant box 11, a softener assistant box 12 and a first change-over valve 13.

Detailed Description

In order to make the technical means and the objectives and functions of the present invention easy to understand, the embodiments of the present invention will be described in detail with reference to the specific drawings.

It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "transverse", "longitudinal", "center", etc. are used only for explaining the relative positional relationship, connection conditions, etc. between the respective members in a certain specific state (as shown in the drawings), and are only for convenience of description of the present invention, and do not require that the present invention must be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular 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. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example 1

As shown in fig. 1-2, the utility model provides an automatic device of puting in washing assistant of washing machine and washing machine thereof especially relates to the automatic device of puting in washing assistant of many buckets of negative pressure, including two at least washtubs, be first washtub 4, second washtub 5 respectively, still include at least one set of input system, input system includes water intaking valve 1, venturi 2, flow regulating valve 6, second change-over valve 10 and constant volume device 3 and detergent assistant box 11, constant volume device 3 can be respectively to the automatic washing assistant of puting in detergent assistant box 11 in first washtub 4, the second washtub 5, and/or, under venturi 2's another operating condition, constant volume device 3 can be respectively to first washtub 4, second washtub 5 water injection, can be respectively to first washtub 4 through second change-over valve 10, The second washing tub 5 is filled with water, and the device is arranged between the water inlet pipe and the water outlet pipe.

The utility model discloses an automatic device of puting in washing agent of washing machine, through setting up constant volume device and venturi structure, through the absorption of the interior detergent auxiliary agent of control realization constant volume device 3 to venturi rivers, absorb the back that finishes, according to venturi 2's water path control, wash to the water injection in the constant volume device 3, make the detergent auxiliary agent of detergent auxiliary agent in 3 in the constant volume device to at least two barrels automatic put in detergent auxiliary agent box 11, thereby accomplish the automatic absorption and the input of twin-tub or multi-tub detergent auxiliary agent.

The utility model discloses an automatic device of puting in washing agent of washing machine, through the constant volume device that sets up and the absorption pipeline of constant volume device and put in the pipeline, avoid washing agent to flow through water metering device, and prestore the volume of washing agent in the device, the volume with being taken away the water of flowing through water metering device from prestore the device is the same, the volume through the measurement water replaces the volume of measurement washing agent, thereby the accuracy that water metering device detected has been increased, the efficiency of puting in of washing agent has been improved, washing agent has been reduced, the waste of rinsing water, reduce washing agent input time, thereby realize the reliability to automatic input washing agent auxiliary agent in two at least washtubs.

Preferably, a water inlet valve 1, a venturi pipe 2, a flow regulating valve 6 and a second change-over valve 10 are arranged between the water inlet pipe and the water outlet pipe, the second switching valve 10 can supply water into the first and second washtubs 4 and 5 by controlling, the water inlet valve 1 is arranged on a water inlet pipeline, the Venturi tube 2 is provided with a water inlet part and a water outlet part, the water inlet part is connected with the water inlet pipe, the water outlet part is connected with a water outlet pipe, a throat part is arranged between the water inlet part and the water outlet part, negative pressure is generated at the throat part when water flows from the water inlet part to the water outlet part, one end of the throat part is connected with a detergent auxiliary box 11 through a detergent auxiliary pipe, the detergent auxiliary pipe is provided with a constant volume device 3, and the detergent auxiliary in the constant volume device 3 can respectively flow to the first washing barrel 4 and the second washing barrel 5 under the control of a first switching valve 13.

A washing assistant control valve 8 is arranged between the constant volume device 3 and the detergent assistant box 11.

The device is used for controlling the on-off of the suction pipeline between the constant volume device 3 and the detergent auxiliary agent box 11, so that the detergent auxiliary agent control valve 8 is in an open state when the constant volume device 3 sucks the detergent auxiliary agent in the detergent auxiliary agent box 11; when the constant volume device 3 puts in the detergent auxiliary agent, the washing auxiliary agent control valve 8 is in an open state, and the control precision of absorbing and putting in the detergent auxiliary agent by the constant volume device 3 is ensured.

A check valve 9 is arranged between the constant volume device 3 and the first switching valve 13.

This setting avoids the detergent auxiliary agent to flow back in putting in the pipeline, guarantees the reliability that constant volume device 3 washed and put in.

The constant volume device 3 can be a constant volume cavity or a flow meter.

When the constant volume device 3 adopts a constant volume cavity to perform constant volume, as shown in fig. 1, a water inlet valve 1, a flow regulating valve 6, a washing assistant control valve 8 and a second change-over valve 10 are opened, water flows out of the water inlet valve 1, flows to the flow regulating valve 6 through the throat part of a Venturi tube 2, and flows to a first washing barrel 4 and/or a second washing barrel 5 through the regulating action of the second change-over valve 10, at the moment, the throat part of the Venturi tube 2 generates negative pressure, so that the washing agent in a washing assistant box 11 is sucked into the constant volume device 3;

during washing, as shown in fig. 2, the water inlet valve 1 and the first conversion valve 13 are opened, the flow regulating valve 6 and the washing assistant control valve 8 are closed, water in the water inlet pipe flows to the constant volume device 3 through the throat part of the venturi tube 2, and then flows to the first washing barrel 4 and/or the second washing barrel 5 through the regulating action of the first conversion valve 13;

the water supply to the first washtub 4 and/or the second washtub 5 is continued until a predetermined water level is reached.

Washing machine puts in device of washing auxiliary agent automatically, washing machine when intaking, utilize in the water route of intaking venturi to intake and wash constant volume device 3 and through siphon effect evacuation constant volume device 3, utilize venturi effect to make the rivers of intaking produce the negative pressure, extract the constant volume valve holding chamber of constant volume device 3 with the detergent in detergent auxiliary agent box 11, recycle venturi 2 negative pressure passageway and intake to constant volume device 3, wash into first washtub 4 and/or second washtub 5 with the detergent in the constant volume device 3.

Or, when the constant volume device 3 adopts a flowmeter to fix the volume, the control method is as follows:

s1: opening the water inlet valve 1, closing the flow regulating valve 6 and the washing assistant control valve 8, and enabling water to flow out of the water inlet valve 1 and enter the washing assistant pipe through the throat part of the Venturi tube 2, so that water is filled between the water metering device and the washing assistant control valve 8 in the constant volume device 3;

s2: opening the flow regulating valve 6, opening the water inlet valve 1 and the washing assistant control valve 8, starting metering by the metering device, and enabling water to enter the first washing barrel 4 and/or the second washing barrel 5 from the water inlet valve 1 through the water outlet part of the Venturi tube 2, the flow regulating valve 6 and the second conversion valve 10, wherein the washing assistant enters the washing assistant tube without passing through the water quantity metering device;

s3: when the water flow passing through the water flow metering device reaches the designated amount and the washing machine controller meters a signal of the target flow, the washing machine controller controls the washing assistant control valve 8 and the flow regulating valve 6 to be closed, at the moment, the one-way valve 9 is opened, water enters the washing assistant pipe from the water inlet valve 1 through the throat part of the Venturi tube 2, and the washing assistant in the washing assistant pipe is flushed into the first washing barrel 4 and/or the second washing barrel 5 through the one-way valve 9;

s4: the flow regulating valve 6 is opened, the water inlet valve 1 is opened, and water enters the first washtub 4 and/or the second washtub 5 from the water inlet valve 1 through the water outlet portion of the venturi tube 2 and the flow regulating valve 6 until a predetermined water level is reached.

In this embodiment, the first switching valve 13 and the second switching valve 10 may be multi-way valves such as a three-way valve and a four-way valve.

The number of the washing barrels can be two, or three, four or more, and the like, and when the throwing device is thrown into the two washing barrels, the first change-over valve 13 and the second change-over valve 10 are three-way valves; when the dispensing device described in the present application is dispensed into three washing tubs, the first switching valve 13 and the second switching valve 10 are four-way valves.

The utility model discloses in washing assistant is the various liquid auxiliaries that the laundry was used, including laundry detergent, softener, bleaching agent etc, washing assistant box can be a plurality of, places laundry detergent, softener, bleaching agent etc. respectively, all is equipped with solitary washing assistant control valve at every washing assistant box, also can set up between two washing assistant boxes and prestore storage device with a three-way valve, through the selection of opening the three-way valve, realizes wherein arbitrary one washing assistant box and prestore intercommunication or disconnection between the storage device.

The water metering device may be used to detect the flow rate of passing water, but the detected amount of passing water is the most accurate.

The quantity of the washing assistant can be manually set or a washing machine program can be selected, and the quantity of the washing assistant to be put in is calculated by the washing machine controller according to the selected mode through water inflow, washing time, water temperature, clothes material and the like. Preferably, as shown in fig. 3 to 4, when detergent box softener needs to be respectively put into the first washing tub 4 and/or the second washing tub 5, the constant volume device 3 is connected with the detergent auxiliary box 11 and the softener auxiliary box 12 through the detergent auxiliary pipe and the softener auxiliary pipe, where the detergent auxiliary box 11 and the softener auxiliary box 12 generally refer to detergent or softener, and may also refer to other liquid putting agents such as disinfectant, bleaching agent and the like for washing.

Example 2

As shown in figures 5-8, the utility model provides another automatic washing assistant feeding device for washing machine, which comprises at least two washing barrels, namely a first washing barrel 4 and a second washing barrel 5, a first water inlet valve 1-1, a second water inlet valve 1-2, a first Venturi tube 2-1, a second Venturi tube 2-2, a first volume fixing device 3-1, a second volume fixing device 3-2, a first flow regulating valve 6-1, a second flow regulating valve 6-2, a first washing assistant control valve 8-1, a second washing assistant control valve 8-2, a first check valve 9-1, a second check valve 9-2 and a washing assistant box 11, wherein the first water inlet valve 1-1, the first Venturi tube 2-1, the first volume fixing device 3-1, the first washing assistant control valve 8-1, The first flow regulating valve 6-1 and the first one-way valve 9-1 form a set of feeding system for automatically feeding detergent into the second washing barrel 5; the second water inlet valve 1-2, the second Venturi tube 2-2, the second constant volume device 3-2, the second flow regulating valve 6-2, the second washing assistant control valve 8-2 and the second one-way valve 9-2 form a set of feeding system for automatically feeding the washing agent into the first washing barrel 4, and the two sets of feeding systems can share one washing assistant box 11 and can be respectively communicated with one washing assistant box 11.

Compared with the embodiment 1, the scheme cancels the arrangement of a conversion valve and respectively feeds the washing liquid into the first washing barrel 4 and the second washing barrel 5 through two sets of feeding systems.

The other design is the same as that of embodiment 1.

Example 3

As shown in figures 9-12, the utility model provides an automatic device of putting in washing auxiliary agent of third kind washing machine, including at least two washtubs, be first washtub 4, second washtub 5 respectively, still include first water intaking valve 1-1, second water intaking valve 1-2, first venturi 2-1, second venturi 2-2, constant volume device 3, first flow regulating valve 6-1, second flow regulating valve 6-2, washing auxiliary agent control valve 8, washing auxiliary agent box 11, wherein, first venturi 2-1, second venturi 2-2 communicate with constant volume device 3 through the pipeline, constant volume device 3 and washing auxiliary agent box 11 communicate, constant volume device 3 and washing auxiliary agent box 11 are provided with washing auxiliary agent control valve 8, first venturi 2-1 flows to first venturi 2-1 through the water intaking valve through the water intaking pipe and flows into first venturi 2-1 through constant volume device 3, The first flow regulating valve 6-1 flows to the second washing barrel 5 through the water outlet pipeline, the second water inlet valve 1-2 flows to the second venturi tube 2-2 through the water inlet pipeline, the second flow regulating valve 6-2 flows to the first washing barrel 4 through the water outlet pipeline, and the dosing agent in the constant volume device 3 can flow to the first washing barrel 4 and/or the second washing barrel 5 through the one-way valve 9 and the change-over valve.

Compared with the embodiment 2, the two sets of feeding systems in the scheme are common, the two sets of feeding systems are respectively used for feeding the constant volume device 3 into the first washing barrel 4 and the second washing barrel 5, and the mode that the constant volume device 3 feeds the washing aid is that the mode of the practical change-over valve in the embodiment 1 is adopted for feeding.

A first water metering device 7-1 is arranged between the constant volume device 3 and the first Venturi tube 2-1, and a second water metering device 7-2 is arranged between the constant volume device 3 and the second Venturi tube 2-2.

The other design is the same as that of embodiment 1 or embodiment 2.

The water metering device may be used to detect the flow rate of passing water, but the detected amount of passing water is the most accurate.

The quantity of the washing assistant can be manually set or a washing machine program can be selected, and the quantity of the washing assistant to be put in is calculated by the washing machine controller according to the selected mode through water inflow, washing time, water temperature, clothes material and the like.

In the present application, the constant volume device 3 may include a pre-storage device, and the pre-storage device may be a washing aid tube itself or a container or a combination of the washing aid tube and the container. The pre-storage device can store water, when a component connected with the pre-storage device generates negative pressure, the water in the pre-storage device can be pumped away, and the required amount of the washing assistant can be accurately pumped through the measured water flow.

In this application, washing assistant can once extract washing assistant and accomplish the input, and the exception need input many times when very big washing assistant input volume demand, reduces and puts in the number of times and has also solved when the time of intaking is fixed time, because the constant volume valve is put in many times and the time of intaking that leads to is not enough problem.

In this application, washing assistant box one end communicates with each other with atmosphere, and when venturi's throat produced the negative pressure, the atmospheric pressure of washing assistant box intercommunication and the negative pressure formation pressure differential of venturi throat suppressed washing assistant and prestore storage device.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The device for automatically putting in washing aids in the washing machine is characterized by comprising at least two washing barrels, namely a first washing barrel (4) and a second washing barrel (5), and at least one set of putting system, wherein the putting system comprises a water inlet valve (1), a Venturi tube (2), a second change-over valve (10), a constant volume device (3) and a washing aid box (11), the Venturi tube (2) is communicated with the constant volume device (3), the Venturi tube (2) can respectively inject water into the first washing barrel (4) and the second washing barrel (5) through the second change-over valve (10), the constant volume device (3) is communicated with the washing aid box (11), the constant volume device (3) can respectively and automatically put in the washing aids box (11) in the first washing barrel (4) and the second washing barrel (5) under the action of the Venturi tube (2), and/or the constant volume device (3) can respectively inject water into the first washing barrel (4) and the second washing barrel (5).

2. Device for the automatic dosing of washing aids in washing machines according to claim 1, characterized in that a flow regulator valve (6) is provided between the venturi tube (2) and the second changeover valve (10).

3. The device for automatically putting in washing aids of a washing machine according to claim 2, characterized in that the venturi tube (2) is provided with a water inlet part and a water outlet part, the water inlet part is connected with the water inlet pipe, the water outlet part is connected with the water outlet pipe, a throat part is arranged between the water inlet part and the water outlet part, negative pressure is generated at the throat part in the process that water flows from the water inlet part to the water outlet part, one end of the throat part is connected with a washing aid box (11) through a washing aid pipe, the constant volume device (3) is arranged on the washing aid pipe, and the washing aids in the constant volume device (3) respectively flow to the first washing barrel (4) and the second washing barrel (5) under the control of a first change-over valve (13).

4. The device for automatically adding washing assistant in washing machine according to claim 3, characterized in that a washing assistant control valve (8) is arranged between the constant volume device (3) and the detergent assistant box (11).

5. The device for automatically adding washing aids in a washing machine as claimed in claim 4, characterized in that a one-way valve (9) is arranged between the volume metering device (3) and the first switching valve (13).

6. The device for automatically putting in washing auxiliary agent of washing machine according to claim 1, characterized in that the constant volume device (3) is a constant volume chamber, or the constant volume device (3) is a flow meter.

7. The device for automatically feeding washing assistant in washing machine according to any of claims 1 to 6, it is characterized by comprising at least two sets of feeding systems, wherein the two sets of feeding systems comprise a first water inlet valve (1-1), a second water inlet valve (1-2), a first Venturi tube (2-1), a second Venturi tube (2-2), a constant volume device (3), a first flow regulating valve (6-1), a second flow regulating valve (6-2), a washing assistant control valve (8) and a washing assistant box (11), the automatic detergent feeding system comprises a first water inlet valve (1-1), a first Venturi tube (2-1), a first containing device (3-1), a first washing aid control valve (8-1), a first flow regulating valve (6-1) and a first one-way valve (9-1), wherein a feeding system for automatically feeding detergent into a second washing barrel (5) is formed; the second water inlet valve (1-2), the second Venturi tube (2-2), the second constant volume device (3-2), the second flow regulating valve (6-2), the second washing aid control valve (8-2) and the second one-way valve (9-2) form a set of feeding system for automatically feeding the washing agent into the first washing barrel (4), the two sets of feeding systems share one washing agent aid box (11), or the two sets of feeding systems are respectively communicated with one washing agent aid box (11).

8. The device for automatically putting in the washing aid of the washing machine according to any one of claims 1 to 6, characterized by comprising at least two putting systems, wherein the two putting systems comprise a first water inlet valve (1-1), a second water inlet valve (1-2), a first Venturi tube (2-1), a second Venturi tube (2-2), a constant volume device (3), a first flow regulating valve (6-1), a second flow regulating valve (6-2), a washing aid control valve (8) and a washing aid box (11), wherein the first Venturi tube (2-1) and the second Venturi tube (2-2) are communicated with the constant volume device (3) through pipelines, the constant volume device (3) is communicated with the washing aid box (11), the washing aid control valve (8) is arranged between the constant volume device (3) and the washing aid box (11), the first water inlet valve (1-1) flows to a first Venturi tube (2-1) through a water inlet pipeline, the first flow regulating valve (6-1) flows to a second washing barrel (5) through a water outlet pipeline, the second water inlet valve (1-2) flows to a second Venturi tube (2-2) through a water inlet pipeline, the second flow regulating valve (6-2) flows to the first washing barrel (4) through a water outlet pipeline, and the throwing agent in the constant volume device (3) flows to the first washing barrel (4) and/or the second washing barrel (5) through a one-way valve (9) and a first conversion valve (13).

9. The device for automatically putting in washing assistant in washing machine according to claim 8, characterized in that a first water metering device (7-1) is arranged between the constant volume device (3) and the first venturi tube (2-1), and a second water metering device (7-2) is arranged between the constant volume device (3) and the second venturi tube (2-2).

10. A washing machine is characterized by comprising a device for automatically adding washing aids in the washing machine according to any one of claims 1 to 9.

Images