CN106149306B - Method and device for injecting liquid washing assistant by using water inlet electromagnetic valve of washing machine - Google Patents
Method and device for injecting liquid washing assistant by using water inlet electromagnetic valve of washing machine Download PDFInfo
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- CN106149306B CN106149306B CN201510132789.0A CN201510132789A CN106149306B CN 106149306 B CN106149306 B CN 106149306B CN 201510132789 A CN201510132789 A CN 201510132789A CN 106149306 B CN106149306 B CN 106149306B
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Abstract
A method and apparatus for injecting liquid detergent auxiliary agent by using water inlet electromagnetic valve of washing machine, one end of a water inlet pipeline is connected with a tap and the other end is connected with an auxiliary waterway and a main waterway, the auxiliary waterway and the main waterway are connected with a water outlet pipeline; the auxiliary water path is provided with a pressure control device, and a bypass is arranged between the pressure control device and the water outlet pipeline and is connected with the liquid washing auxiliary agent box; closing the main water path and the auxiliary water path, starting the washing machine, and opening the auxiliary water path; the liquid washing auxiliary agent is automatically injected into the auxiliary water path and enters the washing machine through a water inlet electromagnetic valve of the washing machine along the auxiliary water path and a water outlet pipeline; and after the liquid washing assistant reaches the specified dosage, the main water path is opened for water injection, and when the liquid washing assistant reaches the specified water level, the washing machine starts to work. The device for injecting the liquid washing assistant is effectively connected with the structure of the water inlet electromagnetic valve of the washing machine, the current situation of the washing machine is not damaged, and the device is simple to process and convenient to operate.
Description
Technical Field
The invention relates to a method and a device for injecting liquid detergent auxiliary agent into a washing machine by using a water inlet electromagnetic valve of the washing machine.
Background
The device for injecting the liquid washing aid into the washing machine is realized by various pumps at present, and two device modes are commonly used, wherein one mode is a liquid washing aid box integrally formed with the washing machine and needs to be independently opened for processing; the other is split type, and the washing machine needs to be provided with holes, and both the two modes cause unnecessary troubles for production and processing.
In view of the above, it is an object of the present invention to provide a method and apparatus for injecting liquid detergent builder without changing the current status of a washing machine.
Disclosure of Invention
The invention mainly aims to provide a method for injecting liquid washing auxiliary agent by utilizing a water inlet electromagnetic valve of a washing machine;
another object of the present invention is to provide a device for injecting liquid detergent builder using a water inlet solenoid valve of a washing machine.
The object of the invention can be achieved by:
the invention provides a method for injecting liquid washing auxiliary agent by using a water inlet electromagnetic valve of a washing machine, which comprises a water inlet pipeline 14, wherein the water inlet pipeline 14 is connected with an auxiliary water channel 15 and a main water channel 16;
further, the auxiliary waterway 15 and the main waterway 16 are connected with a water outlet pipeline 18;
furthermore, the auxiliary water path 15 is provided with a pressure control device 6, and at least one bypass 17 is arranged on the auxiliary water path between the pressure control device 6 and the water outlet pipeline 18;
furthermore, the main water path 16 is provided with a control valve 8, when in use, the water inlet pipeline 14 is connected to a tap water faucet, and the water outlet pipeline 18 is connected to a water inlet of the washing machine; the main water path 16 is closed, the washing machine is started, and the water inlet electromagnetic valve 11 of the washing machine is automatically opened;
furthermore, because the pressure of the auxiliary water path 15 is regulated by the pressure control device 6, the pressure is greater than the opening pressure of the water inlet electromagnetic valve 11 of the washing machine and less than or equal to the pressure of the liquid washing assistant injected into the auxiliary water path 15, and the pressure control device 6 is always kept smooth, the water flow from the auxiliary water path 15 flows into the washing machine through the water outlet pipeline 18, and the liquid washing assistant is automatically injected into the auxiliary water path 15 and enters the washing machine through the water inlet electromagnetic valve 11 of the washing machine along the auxiliary water path 15 and the water outlet pipeline 18;
after the liquid detergent auxiliary reaches the designated dosage, the main water path 16 is opened for water injection, meanwhile, the auxiliary water path 15 is continuously filled with water to wash the liquid detergent auxiliary adhered to the inner wall of the auxiliary water path 15, and when the liquid detergent auxiliary reaches the designated water level, the water inlet electromagnetic valve 11 of the washing machine is automatically closed, and the washing machine starts to work.
In the method for automatically injecting the liquid washing auxiliary agent, the liquid washing auxiliary agent is injected into the auxiliary water channel 15 by a pump or a metering pump; the pressure control device 6 and the control valve 8 are of a normally open type; the washing machine water inlet electromagnetic valve 11 is a pilot valve.
The automatic injection method of the liquid washing aid comprises at least one liquid washing aid box 1, wherein a liquid washing aid outlet of the liquid washing aid box 1 is connected with a bypass 17 through a pump.
According to the automatic injection method of the liquid washing assistant, after the liquid washing assistant reaches the specified dosage, the backflow preventing device 4 is started to block water flow from flowing backwards into the bypass 17.
The invention provides a device for injecting liquid detergent auxiliary agent by using a water inlet electromagnetic valve of a washing machine, which comprises:
a water inlet pipeline 14, wherein the water inlet pipeline 14 is connected with the auxiliary waterway 15 and the main waterway 16;
further, the auxiliary waterway 15 and the main waterway 16 are connected with a water outlet pipeline 18;
furthermore, the auxiliary water path 15 is provided with a pressure control device 6, and at least one bypass 17 is arranged on the auxiliary water path between the pressure control device 6 and the water outlet pipeline 18;
further, a control valve 8 is provided on the main water passage 16.
The automatic injection device of the liquid detergent auxiliary agent is characterized in that a backflow preventing device 4 is arranged on the bypass 17, and the backflow preventing device 4 is an electromagnetic valve or a one-way valve.
The automatic injection device of the liquid washing aid comprises at least one liquid washing aid box 1, wherein a liquid washing aid outlet of the liquid washing aid box 1 is connected with a bypass 17 through a pump.
In the automatic liquid detergent assistant injecting device, the pressure control device 6 is a shrinkage pipe, and the outlet pressure of the pressure control device 6 is greater than the opening pressure of the water injection pilot valve of the washing machine and less than or equal to the injection pressure of the liquid detergent assistant of the bypass 17.
The lowest liquid level of the liquid washing aid in the liquid washing aid box 1 is higher than the liquid washing aid automatic injection device and the water inlet of the washing machine.
In the automatic liquid detergent auxiliary injection device, a liquid detergent auxiliary extraction pump is arranged between the liquid detergent auxiliary outlet of the liquid detergent auxiliary box 1 and the backflow prevention device 4, and the extraction pump can be a metering pump; the control valve 8 is a normally open type electromagnetic valve.
Drawings
FIG. 1 is a structural view of example 1.
FIG. 2 is a structural view of embodiment 2.
FIG. 3 is a structural view of embodiment 3.
FIG. 4 is a schematic diagram of the operation of the inlet valve of the pilot valve when it is not energized.
FIG. 5 is a schematic diagram of the operation of the pilot valve when the inlet valve is energized.
For better understanding of the embodiment, the parts of the washing machine of the present invention for automatically injecting liquid detergent auxiliary are numbered below, wherein the liquid detergent auxiliary box 1, the metering pump 2, the pressure gauge 3, the backflow prevention device 4, the auxiliary control valve 5, the pressure control device 6, the control valve 8, the pressure gauge 9, the main control valve 10, the washing machine water inlet solenoid valve 11, the tap water outlet 12, the washing machine 13, the water inlet pipeline 14, the auxiliary water pipeline 15, the main water pipeline 16, the bypass 17, and the water outlet pipeline 18.
Detailed Description
Example 1
FIG. 1 shows an example of a pressure test at various points in a liquid detergent builder plant, which, as shown, comprises: a tap water outlet 12 connected with tap water, a water inlet pipeline 14 leading out a main water channel 15 and an auxiliary water channel 16, a pressure control device 6 and an auxiliary control valve 5 arranged on the auxiliary water channel 15, and a control valve 8 and a main control valve 10 arranged on the main water channel 16. The anti-backflow device 4 is arranged on the bypass 17, the metering pump 2 is connected with the liquid washing auxiliary agent box 1, the water outlet pipeline 18 is connected with the water inlet pipeline of the washing machine, and the liquid washing auxiliary agent enters the washing machine 13 through the washing machine water inlet electromagnetic valve 11 of the washing machine. For the convenience of the test, a pressure gauge 3 and a pressure gauge 9 are respectively installed on the auxiliary water path 15 and the main water path 16 for reading the pressure value.
Setting the initial state all valves are in the closed state. In order to observe various phenomena described below, the auxiliary water path 15 and all the pipelines connected to the backflow prevention device 4 are transparent pipelines, and in this embodiment, all the control valves are manual control valves for convenience of operation. The following tests were performed in order:
firstly, the method comprises the following steps: and testing the pressure of tap water in the main water channel 16, closing all pipelines, opening the control valve 8, reading the reading of the pressure gauge 9 after the water flow is stable, repeating the step for several times, and obtaining the readings of the pressure gauge 9 which are 0.36MPa,0.375 MPa,0.378 MPa and 0.38 MPa in sequence to obtain the pressure of the tap water in the main water channel 16 which is between 0.35MPa and 0.40 MPa.
II, secondly: and (3) testing whether the water inlet electromagnetic valve 11 of the washing machine can be normally opened, starting the test, closing all the valves, starting the washing machine, and enabling the water inlet electromagnetic valve 11 of the washing machine to be inactive due to no water. The control valve 8 and the main control valve 10 are opened, the water inlet electromagnetic valve 11 of the washing machine is opened under the action of the pressure of tap water, and after the water flows in the main water channel 16 and the water outlet pipeline 18 normally and smoothly, the reading of the pressure gauge 9 is about 0.02MPa, namely the pressure of the main water channel 16 is about 0.02MPa when the tap water flows out normally.
Thirdly, the method comprises the following steps: the lowest pressure value of the water inlet electromagnetic valve 11 of the washing machine can be opened by testing tap water, the test is started, all pipelines are closed, the control valve 5 is opened, the washing machine is started, the water inlet electromagnetic valve 11 of the washing machine does not act due to no water, the control valve 6 is opened at a very slow speed, the water inlet electromagnetic valve 11 of the washing machine is observed to be inactive when the reading of the pressure gauge 3 is less than 0.02MPa, the water inlet electromagnetic valve 11 of the washing machine is automatically opened when the reading of the pressure gauge 3 is approximately 0.022MPa, and the lowest pressure value for opening the water inlet electromagnetic valve 11 of the washing machine is approximately 0.022 MPa.
Fourthly, the method comprises the following steps: after the data of the previous test are collected, on the basis of the third step, when the minimum pressure value is about 0.022MPa, whether the liquid detergent additive extracted by the metering pump can smoothly flow into the washing machine or not is observed, and the liquid detergent additive can smoothly flow into the washing machine 13 is observed.
Fifthly: and testing the pressure of the liquid washing assistant to the auxiliary water channel 15 through the metering pump, wherein on the basis of the fourth step, after the metering pump operates for a period of time, the numerical value of the pressure gauge 3 tends to be stable, and is approximately 0.03MPa, so that the pressure in the auxiliary water channel 15 when the metering pump works is 0.03 MPa.
Sixthly, the method comprises the following steps: when the pressure in the auxiliary water path 15 exceeds a certain range, the running water may flow back into the liquid detergent box through the auxiliary water path 15 via the bypass 17. And fifthly, starting the test, and observing whether the tap water from the pressure control device 6 can flow back into the liquid washing auxiliary agent box 1 through the auxiliary water channel 15 by the bypass 17 or not when the numerical value of the pressure gauge 3 changes.
Tests show that when the value displayed by the pressure gauge 3 is between 0.02MPa and a certain value, the running water does not flow backwards; when the numerical value displayed by the pressure gauge 3 exceeds a certain value, the running water is observed to flow backwards into the liquid washing auxiliary agent box 1 through the backflow prevention device 4 and the metering pump 2; when the value displayed by the pressure gauge 3 exceeds a certain value, the tap water can be observed by naked eyes to rapidly flow back into the liquid detergent auxiliary box 1.
Seventhly, the method comprises the following steps: and sixthly, the running water backflow occurs in a static environment, and the test in the step is in a dynamic environment. When the test is started, all the valves are closed, the washing machine is started, the water inlet electromagnetic valve 11 of the washing machine does not act because no water exists, the control valve 8 is opened, the pressure control device 6 is opened at an extremely slow speed, the backflow prevention device 4 is opened when the pressure of the auxiliary water channel 15 is 0.02MPa, the metering pump 2 is started, the liquid washing auxiliary agent can be seen to normally flow into the washing machine 13, the pressure control device 6 is continuously and slowly opened, the device for injecting the liquid washing auxiliary agent can normally work when the pressure gauge 3 is 0.02 MPa-0.03 MPa, when the pressure control device 6 is started to a certain degree and the pressure gauge 3 is a certain value, the pressure of tap water from the pressure control device 6 can be found to exceed the pressure of the metering pump 2, and the tap water moves towards the metering pump along the auxiliary water channel 15 through the bypass 17.
In conclusion, the seven tests show that when the pressure value of the auxiliary water channel 15 is 0.02-0.03 MPa, the liquid detergent auxiliary can normally enter the washing machine 13, and when the pressure value of the auxiliary water channel 15 is within a certain range, the tap water can move along the auxiliary water channel 15 to the metering pump direction through the bypass 17 to flow backwards.
The above steps show that the backflow prevention device 4, the pressure control device 6 and the control valve 8 in the corresponding diagram are necessary for the device for automatically injecting the liquid detergent auxiliary agent into the washing machine, and a further test is carried out, namely example 2.
In all the following embodiments, the back-flow prevention device 4 is a device for preventing the pressure of the auxiliary water path 15 from flowing back into the liquid detergent box 1 too much, the control valve 6 is used for controlling the pressure in the pipeline to meet a certain value, and the pressure control device 6 is provided with scales, and the reading of the pressure control device 6 when the pressure is met is remembered in the test process.
Example 2
Referring to fig. 2, an embodiment 2 of an apparatus for automatically injecting a liquid detergent builder in a washing machine is specifically described, which includes: a tap water outlet 12 connected with tap water, a water inlet pipeline 14 leading out a main water channel 15 and an auxiliary water channel 16, a pressure control device 6 arranged on the auxiliary water channel 15, and a control valve 8 arranged on the main water channel 16. A backflow preventing device 4 arranged on the bypass 17 and a metering pump 2 connected with the liquid detergent auxiliary agent box. Before the washing machine works, the pipelines at all positions are not communicated, a water inlet button of the washing machine is turned on, the pressure control device 6 is turned on to a specified value, after water flow is coherent, the metering pump 2 is started, the backflow prevention device 4 is in an open state, the bypass 17 is ensured to be smooth, and quantitative liquid washing auxiliary agents are injected. After the liquid washing assistant is injected, the metering pump 2 is closed, the backflow preventing device 4 is started to block water flow from flowing backwards into the bypass 17, the water flow flows to flush the auxiliary water channel 15 for a while, the control valve 8 is opened to feed water normally, the water inlet electromagnetic valve 11 of the washing machine is closed automatically when the washing machine is ready to feed water to the designated position of the washing machine, and the washing machine starts to work.
The device for automatically injecting the liquid detergent auxiliary agent into the washing machine can be conveniently hung or adsorbed on the upper surface or the side surface of the washing machine.
The outlet of the device for automatically injecting the liquid washing assistant into the washing machine is connected with the water inlet of the existing washing machine, so that the existing washing machine is not damaged or reformed; if the existing washing machine is full-automatic, a circuit can be arranged on the device for automatically injecting the liquid washing assistant into the washing machine and is connected with the washing machine circuit to realize the full-automatic function.
Example 3
As shown in fig. 3, the present inventor believes that the pressure control device 6 may be a contracted pipe, which is defined as a small-diameter passage, which may be a thin pipe or a small pore, through which the pressure of the auxiliary water path 15 can be reduced to a designated range, in the present invention, even though the contracted pipe is the same as a term used in other technical fields.
Specifically, when the control valve 8 is closed, the water flow from the auxiliary water path 15 can smoothly open the water inlet electromagnetic valve 11 of the washing machine, for example, when the tap water pressure of the auxiliary water path 15 is about 0.022MPa, the water inlet electromagnetic valve 11 of the washing machine can be opened, so the pressure control device 6 can be a control valve, a pipe, or a similar pressure control device capable of fixedly keeping the tap water pressure of the auxiliary water path 15 within a certain range.
The tap water pressure value P of the auxiliary waterway 15 should satisfy:
the pressure > P at which the tap water can flow back to the liquid detergent auxiliary box 1 through the bypass 17 > the minimum pressure value at which the tap water opens the washing machine water inlet solenoid valve 11 through the auxiliary water path 15. When the automatic injection device is needed, all valves are in a closed state firstly, the water inlet button of the washing machine is opened, the pressure control device 6 can control the water pressure to keep the pressure of the auxiliary water channel 15 within a certain range, therefore, running water can smoothly enter the washing machine through the auxiliary water channel 15, the metering pump 2 is started, the backflow prevention device 4 is in an open state, the bypass 17 is ensured to be smooth, and the situation that liquid washing auxiliary agents enter the water outlet pipeline 18 through the auxiliary water channel 15 and smoothly open the water inlet electromagnetic valve 11 of the washing machine to enter the washing machine can be observed.
The present inventors have observed that it is also possible to replace the anti-backflow device 4 with a non-return valve, but the opening pressure of said non-return valve should be less than the pressure of the metering pump 2 to the auxiliary water circuit 15, for example, the above measured pressure value is 0.03 MPa. Because of the one-way valve, even if the water flow opened by the control valve 8 is high pressure, the tap water will not flow back to the bypass 17 and enter the liquid detergent box 1.
When the pressure control device 6 is a pipe reducing device, a small pipe diameter can be selected, and the liquid washing auxiliary agent box 1 is ensured not to flow backwards all the time when the water inlet electromagnetic valve 11 of the washing machine is opened within the range of 0.5 mm-1.5 mm.
Example 4
This embodiment is a method for manually controlling a device for injecting liquid detergent builder. The device for injecting the liquid detergent auxiliary agent comprises: a tap water outlet 12 connected to a tap water pipe, a water inlet pipe 14 leading out a main water passage 15 and an auxiliary water passage 16, a pressure control device 6 mounted on the auxiliary water passage 15, and a control valve 8 mounted on the main water passage 16. A backflow preventing device 4 arranged on the bypass 17 and a metering pump 2 connected with the liquid detergent auxiliary agent box. Before the washing machine works, the pipelines at all positions are arranged to be not communicated, the washing machine is started, the pressure control device 6 is opened, after water flow is coherent, the metering pump 2 is started, the backflow prevention device 4 is in an open state, the bypass 17 is guaranteed to be smooth, and liquid washing auxiliaries are injected into the washing machine to reach the specified dosage. After the liquid washing assistant is injected, the metering pump 2 is closed, the backflow preventing device 4 is started to block water flow from flowing backwards into the bypass 17, the water flow is maintained to flow back to the auxiliary water channel 15 for a while, the control valve 8 is opened to feed water normally, the water inlet electromagnetic valve 11 of the washing machine is closed automatically when the washing machine is ready to feed water to the designated position of the washing machine, and the washing machine starts to work.
Of course, different liquid detergent dosage ranges can be set under the condition, such as light dirt, medium dirt, heavy dirt and the like, and different dosage can be selected by a user according to the cleanliness of washed clothes.
The liquid washing assistant box 1 is higher than the water inlet of the washing machine, if the liquid washing assistant box 1 is lower than the water inlet of the washing machine, the liquid washing assistant can flow back due to the gravity action and the siphon principle, bubbles can appear in the pipeline 17, and the liquid washing assistant can not be controlled to reach the specified dosage of the liquid washing assistant of the washing machine in the specified action or the specified time.
The present inventor has observed that in this case, the control valve 8 is energized to keep the device smooth during the whole operation of the washing machine even in the daily non-use state, and the inventor provides the next embodiment in order to reduce the energy consumption and simplify the control action.
Example 5
Summarizing the phenomenon according to embodiment 4, the same as embodiment 4 except that the solenoid valve 8 is normally open, the use of the normally open solenoid valve 8 is advantageous in that the water inlet function of the washing machine can be normally used even without the liquid detergent builder device of the present invention.
Example 6
In this embodiment, the power supply and signal line of the whole liquid detergent auxiliary agent device are controlled by the control device of the washing machine, the backflow prevention of the liquid detergent auxiliary agent injection device and/or the power supply or signal line led out by the metering pump are/is connected with the control device of the washing machine, and a switch for automatically adding the liquid detergent auxiliary agent is arranged in the control device of the washing machine.
When the power supply is switched on to start the washing machine, the washing machine control program automatically judges whether the user selects the liquid washing assistant device, if the washing machine control program finds that the user does not select the washing machine to add the liquid washing assistant program, the electromagnetic valve 8 is normally open, the water inlet pipe faucet connected with the washing machine is normally open, the washing machine control program automatically opens the water inlet valve to start water inlet, and the washing machine control program is equivalent to a common full-automatic washing machine.
When the washing machine control program senses that a user selects a liquid washing assistant injection program, the washing machine automatically enters the liquid washing assistant injection program, the water faucet is always in a normally open state, the washing machine control program automatically closes the electromagnetic valve 8, then starts the metering pump 2, the backflow prevention device 4 is in an open state, the bypass 17 is guaranteed to be unobstructed, the metering pump 2 can carry out normal injection according to an instruction sent by the washing machine control program, when the liquid washing assistant reaches a specified dosage, the washing machine control program automatically closes the metering pump 2, starts the backflow prevention device 4 to block water flow from flowing back into the bypass 17, the internal flushing of the auxiliary water path 15 is kept clean after the backflow prevention device 4 is closed, the normally open electromagnetic valve 8 is powered off, the electromagnetic valve 8 is in an open state after the power is off, and the washing.
The bypass 17 may be more than one line, for example, one line for injecting detergent, one line for injecting softener, etc., so that the washing machine control device can open different bypasses according to different instructions to add different liquid auxiliaries.
The invention provides a technical scheme of the invention aiming at the working principle of the pilot valve and combining the purpose of the invention, and in order to more clearly understand the technical scheme of the invention, the working principle of the pilot valve is briefly described below, and the working principle is shown in fig. 4 and fig. 5. When the water inlet valve is not electrified, the iron core is downwards propped against the rubber valve under the action of the elastic force of the spring to seal a central hole of the rubber valve, if the water source is connected at this time, water firstly enters the cavity A and then enters the cavity B through a small hole in the rubber valve, at this time, the cavity A and the cavity B are filled with water, and meanwhile, a certain water pressure is applied to the rubber valve. At this time, the rubber valve seals the passage from the cavity A to the cavity C, and the washing machine does not feed water. When the water inlet electromagnetic valve is electrified, the iron core of the water inlet electromagnetic valve overcomes the pressure of the spring to move upwards under the action of electromagnetic force, so that the central hole in the rubber valve is opened, water in the cavity B flows into the cavity C through the central hole, the flow rate is very low because the passage of water flow in the cavity A into the cavity B is only provided with small holes in the rubber membrane, the pressure in the cavity B is rapidly reduced, the water pressure in the cavity A quickly exceeds the water pressure in the cavity B, the rubber valve is pushed open, and the water entering the cavity A directly flows into the cavity C as shown in figure 5, and the washing machine starts to feed water.
Claims (8)
1. A method for injecting liquid detergent auxiliary agent by using a water inlet electromagnetic valve of a washing machine, comprising a water inlet pipeline (14), wherein the water inlet pipeline (14) is connected with an auxiliary water channel (15) and a main water channel (16); the auxiliary water channel (15) and the main water channel (16) are connected with a water outlet pipeline (18); the auxiliary water channel (15) is provided with a pressure control device (6), and at least one bypass (17) is arranged on the auxiliary water channel between the pressure control device (6) and the water outlet pipeline (18); a control valve (8) is arranged on the main water path (16); the method is characterized in that: when in use, the water inlet pipeline (14) is connected to a tap water faucet, and the water outlet pipeline (18) is connected to a water inlet of a washing machine; the main water path (16) is closed, the washing machine is started, and the water inlet electromagnetic valve (11) of the washing machine is automatically opened; because the pressure of the auxiliary water path (15) is higher than the opening pressure of the water inlet electromagnetic valve (11) of the washing machine and is less than or equal to the pressure of the liquid washing auxiliary agent injected into the auxiliary water path (15) under the regulation of the pressure control device (6), because the pressure control device (6) is always kept smooth, the water flow from the auxiliary water path (15) flows into the washing machine through the water outlet pipeline (18), the liquid washing auxiliary agent is automatically injected into the auxiliary water path (15) and enters the washing machine through the water inlet electromagnetic valve (11) of the washing machine along the auxiliary water path (15) and the water outlet pipeline (18); after the liquid detergent auxiliary reaches the specified dosage, the main water path (16) is opened for water injection, meanwhile, the auxiliary water path (15) continuously conducts water to wash the liquid detergent auxiliary adhered to the inner wall of the auxiliary water path (15), when the specified water level is reached, the water inlet electromagnetic valve (11) of the washing machine is automatically closed, and the washing machine starts to work.
2. The method for injecting liquid detergent builder using a water inlet solenoid valve of a washing machine as claimed in claim 1, wherein the liquid detergent builder is injected into the sub-water path (15) by means of a pump; the pressure control device (6) and the control valve (8) are normally open; the washing machine water inlet electromagnetic valve (11) is a pilot valve.
3. The method for injecting liquid detergent builder using solenoid valve for washing machine as claimed in claim 1 or 2, wherein at least one liquid detergent builder container (1), the outlet of liquid detergent builder of said liquid detergent builder container (1) is connected to the bypass (17) by pump.
4. The method for injecting liquid detergent builder using a solenoid valve for water inlet of washing machine as claimed in claim 1, wherein the back flow prevention means (4) is activated to block the water flow from being injected into the bypass (17) after the liquid detergent builder reaches a designated amount.
5. The method for injecting liquid detergent builder using solenoid valve for washing machine as claimed in claim 1, wherein the bypass (17) is provided with a back-flow prevention means (4), and the back-flow prevention means (4) is solenoid valve or check valve.
6. The method for injecting liquid detergent builder using solenoid valve for washing machine as claimed in claim 1, wherein the pressure control device (6) is a pipe, the outlet pressure of the pressure control device (6) is greater than the opening pressure of the water injection pilot valve of the washing machine and less than or equal to the injection pressure of the liquid detergent builder of the bypass (17).
7. The method for injecting liquid detergent builder using the water inlet solenoid valve of washing machine as claimed in claim 3, wherein the minimum liquid level of the liquid detergent builder in the liquid detergent builder container (1) is higher than the liquid detergent builder automatic injection device and the water inlet of the washing machine.
8. The method for injecting liquid detergent builder using the electromagnetic valve for water intake of washing machine as claimed in claim 3, wherein a liquid detergent builder pump is provided between the outlet of liquid detergent builder in the liquid detergent builder tank (1) and the backflow preventing means (4), said pump being a metering pump; the control valve (8) is a normally open type electromagnetic valve.
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CN106436186A (en) * | 2015-08-11 | 2017-02-22 | 黄世福 | Method and apparatus injecting washing assistant via water inlet valve of washing machine |
CN106436187A (en) * | 2015-08-11 | 2017-02-22 | 黄世福 | Method and apparatus injecting washing assistant via water inlet valve of washing machine |
CN111974299A (en) * | 2020-07-03 | 2020-11-24 | 惠州市银嘉环保科技有限公司 | Waterway feeding system, waterway feeding control method, washing device and storage medium |
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CN1185500A (en) * | 1996-12-20 | 1998-06-24 | 岑深 | Washing assistant supplying olevice for washer etc. |
CN200998240Y (en) * | 2007-02-07 | 2008-01-02 | 陆中华 | Full-automatic bowl washing machine |
CN102108618A (en) * | 2009-12-29 | 2011-06-29 | 海尔集团公司 | Washing machine capable of automatically putting detergent and control method thereof |
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