JPH04364898A - Mixer of fixed quantity of hot and cold water - Google Patents

Abstract

PURPOSE:To allow washing with hot water by feeding suitable temp, and quantity of hot water to a washing machine through a water-feeding pipe thereof. CONSTITUTION:A hot water passage 10, cold water passage 1 1 to a mixing valve 9, and mixing passage 14 on the downstream side of the mixing valve 9 are formed. Additionally, a bypass water way 17 which does not pass through the mixing valve 9 is formed on the side of cold water passage 11. Temp. of mixed water is set by a hot water temp. regulating means (washing mode) and hot water temp. regulating means (rinsing mode), and the set hot water temp. is switched by a time setting means together with operation mode, and the opening of the mixing valve 9 is controlled based on a detected signal from a temp. sensor and a switching signal from the time setting means. The efficient washign with hot water by easy operation is possible.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quantitative mixing device for hot water and water which can be connected to the water piping of a washing machine and supply hot water at an appropriate temperature and amount to the washing machine for hot water washing.

0002

BACKGROUND OF THE INVENTION It has been known that hot water is more effective than cold water when washing clothes, and hot water has traditionally been used for washing clothes. In order to perform such washing with hot water, it has been done by supplying warm water at an appropriate temperature to the washing machine from a mixing faucet.

0003

[Problems to be Solved by the Invention] However, when the mixing faucet is applied to a fully automatic washing machine for washing, once the water temperature is set, changing the water temperature requires washing with hot water. You have to manually adjust the water temperature when the water is finished. If the water temperature is not adjusted, the entire washing process will be performed using hot water, resulting in a waste of hot water and fuel. Furthermore, when washing using a mixing faucet in a so-called two-layer washing machine, the user must wait until hot water for washing is completely supplied before turning off the supply of hot water. In addition, even in the rinsing process, water must be shut off after the process is complete.
It's a hassle, and if you don't turn off the water, the hot or cold water will remain running, resulting in a lot of waste. The present invention has been made to solve such problems, and an object of the present invention is to provide a hot water quantitative mixing device that enables efficient hot water washing with simple operation.

0004

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides hot water temperature adjustment means that is compatible with at least a plurality of operation modes, and a time setting that temporally sets the amount of hot water dispensed in the operation modes. The device is connected to the water piping of the washing machine to supply hot water at an appropriate temperature and amount to the washing machine. Further, the present invention configures a hot water flow path and a water flow path, each having a water stop valve and a check valve interposed therebetween, to merge through a hot water mixing valve, and a flow rate of mixed hot water is provided downstream of the hot water mixing valve. A plurality of hot water temperature adjusting means configure a hot water mixing flow path leading to the washing machine via a metering valve that maintains a fixed amount and a hot water temperature detecting means that detects the temperature of the mixed hot water, and sets the hot water temperature of the mixed hot water. , comprising a time setting means for switching the amount of hot water dispensed and a set water temperature according to time, and a control means for controlling the opening degree of the hot water mixing valve based on a detection signal from the hot water temperature detection means and a switching signal from the time setting means. It is something that Further, the hot water mixing valve according to the present invention has a rotary valve that can be freely rotated by a driving source, and this rotary valve is operated by a control means based on the set hot water temperature, the mixed hot water temperature, and a switching signal. The openings of the water and hot water channels are adjusted so that the water and hot water channels are mixed in an appropriate ratio. Further, the time setting means in the present invention is capable of freely setting the operating time, stops the water when the operating time has elapsed, switches the set hot water temperature with the next operating mode by restarting, and stops the water after the operating time has elapsed. It is configured to do this. Furthermore, on the water flow path side of the present invention, a bypass waterway that does not pass through the hot water mixing valve is configured to communicate with the hot water mixing flow path from the downstream side of the check valve, and a bypass valve is interposed therebetween, and this bypass valve is manually opened. It is characterized by being flexible.

[0005]

[Operation] When the hot water/water quantitative mixing device of the present invention is applied to a two-tank type washing machine, the washing process is carried out in the following steps. First, the operating time is set using the time setting means, and the device is started.The operation mode (washing mode) starts by dispensing hot water at the set amount and temperature, then stops, and after washing with the detergent is finished and the water is drained. For rinsing, the next operation mode (rinsing mode) is started by restarting, hot water at the set temperature and amount of water for the rinsing mode is dispensed, and then the water is automatically stopped. Regarding the set amount of hot water to be dispensed, the same amount of hot water will be dispensed each time unless the initial setting of the time setting means is changed. When the hot water mixing valve is rotated to adjust the water pressure and hot water temperature, the flow rate changes, so a metering valve is used to stabilize the amount of hot water dispensed. On the other hand, when applied to a fully automatic washing machine, the following procedure is used. After setting the operating time, by starting the device,
Hot water is dispensed based on the set temperature and amount of water in the washing mode, but the set amount varies depending on the operating control type and procedure of the washing machine. Therefore, it is possible to set the operating time corresponding to the function of each washing machine. When the procedure changes from wash mode to rinse mode, the temperature setting also changes. After the washing process is complete, the water will automatically shut off and the power will be turned off.

[0006]

[Embodiment] Next, an embodiment of the hot water quantitative mixing apparatus according to the present invention will be described below with reference to the attached drawings. In FIG. 1, reference numeral 1 indicates a quantitative mixing device for hot water and water, and this device 1 has a housing 2 built-in various valves and control means (described later), and an operation panel 3 with an operation switch button. 4, a start button 5, a wash selection button 6, a rinse selection button 7, and an adjustment dial 8 for setting the washing machine capacity, that is, time. That is, as shown in FIG.
A hot water flow path 10 leading to the water stop valve 12 and a water flow path 11 through which water passes from the water supply pipe to the hot water mixing valve 9 are formed. A stop valve 13 is interposed. On the downstream side of the hot water mixing valve 9, a hot water mixing flow path 14 leading to the washing machine is formed, and a metering valve 15 that keeps the flow rate of the mixed hot water constant and a temperature sensor 16 that detects the temperature of the mixed hot water are formed. be mediated. Further, on the water flow path 11 side, a bypass waterway 17 that does not pass through the hot water mixing valve 9 is provided so as to communicate with the hot water mixing flow path 14 from the downstream side of the check valve 13.
is intervened. This bypass valve 18 is of a manual type that allows water to flow out regardless of the open/closed position of the hot water mixing valve 9.

[0007] In this hot water quantitative mixing device 1, FIG.
As shown in FIG. 2, the control mechanism 19 constituting the control means built into the housing 2 will be described. That is, this control mechanism 19 includes a hot water temperature adjusting means 20 that sets the temperature of the mixed hot water by operating the wash selection button 6 and the rinse selection button 7.
(washing mode), hot water temperature adjustment means 21 (rinsing mode),
A time setting means 22 that changes the amount of hot water and the set water temperature according to the time by operating the adjustment dial 8, and a temperature sensor 19.
The valve opening degree of the hot water mixing valve 9 is controlled based on the detection signal from the time setting means 22 and the switching signal from the time setting means 22.

The hot water mixing valve 9, as shown in FIG.
Equipped with a rotary valve (not shown) that can freely rotate and control the opening to shut off the water and hot water flow paths, mix the water flow path, hot water flow path, and hot water at an appropriate ratio. However, the opening of this rotary valve is adjusted by the rotary drive motor 23 based on a comparison between the set hot water temperature and the temperature of the mixed hot water, or a switching signal between the hot water output amount and the set hot water temperature. Further, a cam is provided on the rotating shaft of the rotary drive motor 23, and a position detection switch Sw1Sw2 that indicates the position of the rotating valve is provided.

When a predetermined time has elapsed, the time setting means 22 sends a switching signal to the control mechanism 19 to switch the set water temperature to the next set water temperature. In addition, the operating time can be freely set, and hot water with mixed temperatures can be obtained by the hot water temperature regulating means 20 (washing mode) or the hot water temperature regulating means 21 (rinsing mode), and the operating time is automatically stopped when the operating time has elapsed. A signal to control the water is sent to the control mechanism 19. Then, by pressing the start button 5, a signal is sent to the control mechanism 19 to dispense hot water at the set water temperature of the next operation mode for the initially set operating time and to automatically shut off the water. It has become.

The hot water quantitative mixing device 1 according to the present invention is constructed as described above, and its operation will be explained next. When the hot water quantitative mixing device 1 is applied to a two-tank type washing machine, the washing process is performed according to the following procedure. In other words, when the start button 5 is pressed, hot water reaches the set amount and temperature of the washing mode and then stopped.When the washing with detergent is finished and the water is drained, pressing the start button 5 starts the operation of the rinsing mode. When the hot water temperature adjustment means 21 (rinsing mode) is started and hot water at the set temperature and amount is dispensed,
Automatically stop. Regarding the set amount of hot water to be dispensed, the same amount of hot water will be dispensed each time unless the position of the adjustment dial 8, which is the operation means of the time setting means 22 that was initially set, is changed. By the way, when the rotary valve of the hot water mixing valve 9 is rotationally driven by the control mechanism 19 in order to adjust the set hot water temperature, the flow rate of mixed hot water or water reaching the downstream side of the hot water mixing valve 9 changes. However, the quantity of hot water can be stabilized by the metering valve 15.

On the other hand, when applied to a fully automatic washing machine, the following procedure is followed. By pressing the start button 5, hot water is dispensed based on the set temperature and set amount of the hot water temperature regulating means 20 (washing mode), but the set amount at this time varies depending on the operation control type and procedure of the washing machine. Since it is only necessary to end the washing mode during the next washing mode during draining, it is possible to set the operating time corresponding to the function of each washing machine. When the wash mode time elapses, water is drained, and the temperature switches to the rinse mode setting temperature before the rinse mode starts. After all washing operations are completed, if the operation switch button 4 is turned off, the opening of the hot water mixing valve 9 is controlled and water stops. Also, if the machine is stopped for a long time, the water will automatically shut off and the power will be turned off. Further, even if the hot water quantitative mixing device 1 breaks down, the bypass valve 18 is manually opened and the bypass waterway 17 is formed regardless of the opening/closing position of the hot water mixing valve 9, so that cold water can flow through the bypass waterway 17. The washing process can be carried out because water is supplied by the washing machine.

0012

[Effects of the Invention] As described above, according to the present invention, with simple operation,
This allows for efficient hot water washing.

[0013]

[Brief explanation of drawings]

FIG. 1 is an external view showing an embodiment of a quantitative mixing device for hot water and water according to the present invention.

FIG. 2 is a system diagram showing an embodiment of the hot water quantitative mixing device according to the present invention.

FIG. 3 is a block diagram of a control mechanism of the hot water quantitative mixing device in FIGS. 1 and 2. FIG.

FIG. 4 is a diagram for explaining the operation of the hot water mixing valve shown in FIG. 3;

[Explanation of symbols]

Claims (5)

[Claims] 1. A hot water temperature adjusting means corresponding to at least a plurality of operation modes, and a time setting means for temporally setting the amount of hot water dispensed in the operation mode, and connected to the water piping of the washing machine, as appropriate. A quantitative mixing device for hot water, characterized in that it is configured to supply hot water at a certain temperature and amount to a washing machine. 2. A hot water flow path and a water flow path, each having a water stop valve and a check valve interposed therebetween, are configured to merge through a hot water mixing valve, and a flow rate of the mixed hot water is determined on the downstream side of the hot water mixing valve. a plurality of hot water temperature adjusting means that configure a hot water mixing flow path leading to the washing machine via a metering valve that maintains the temperature of the mixed hot water and a hot water temperature detecting means that detects the temperature of the mixed hot water, and that sets the hot water temperature of the mixed hot water; A time setting means for switching the hot water output amount and a set hot water temperature according to time, and a control means for controlling the opening degree of the hot water mixing valve based on a detection signal from the hot water temperature detection means and a switching signal from the time setting means. A quantitative mixing device for hot water and water. 3. The hot water mixing valve according to claim 1 has a rotary valve that is rotatable by a driving source, and the rotary valve is controlled by a control means to control the set hot water temperature, the mixed hot water temperature, and a switching signal. A method for measuring hot water and hot water, characterized in that the water and hot water flow paths are shut off, and the openings of the water flow path, the hot water flow path, and the hot water flow path are adjusted so as to mix the hot water and water at an appropriate ratio based on the above. Mixing equipment. 4. The time setting means according to claim 1,
The hot water bath is characterized in that the operating time can be freely set, the water is stopped when the operating time has elapsed, the set hot water temperature is switched along with the next operating mode by restarting, and the water is stopped after the hot water has been dispensed for the operating time. Quantitative mixing device. 5. On the water flow path side according to claim 1, a bypass waterway that does not pass through the hot water mixing valve is configured to communicate with the hot water mixing flow path from the downstream side of the check valve, and a bypass valve is interposed therebetween. A quantitative mixing device for hot water and water, characterized in that the valve can be opened manually.