KR940008408Y1 - Water supplying device for tableware washing machine - Google Patents

Abstract

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Description

Cold & Hot Water Supply

1 is a cross-sectional view schematically showing an embodiment of the cold / hot water mixed water supply apparatus of the present invention.

2 is a cross-sectional view schematically showing one example of a water supply valve suitable for use in the cold / hot water mixed water supply apparatus of the present invention.

3 is a cross-sectional view schematically showing another embodiment of the cold / hot water mixed water supply apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: water supply valve 2: conduit

3: flow path 4: primary water supply valve connection portion

5: 2nd water supply valve connection part 6: mixing blade

7 fluid outlet 8 coil

9: water inlet 11: backflow prevention plate

12: rubber ring 13: bellows

14 bushing 15 rod

16 bobbin assembly 17 bellows plate

18: body

[Field of design]

The present invention relates to a water supply device.

In particular, the present invention relates to a water supply apparatus capable of supplying a mixture of cold water and hot water.

More particularly, the present invention relates to a water supply device that can promote the dissolution of the powder detergent by using the mixed washing water.

[Design background]

Household appliances requiring water supply, such as a washer or dishwasher, require a water supply valve that can control the flow path by a microprocessor in the control panel.

The water supply valves conventionally used differ from each other according to their use, but basically have a function of controlling the flow path by the operation of the solenoid by the signal of the microprocessor in the control panel. Such a variety of water supply valves are currently commercially available, and those skilled in the art can easily select and use an appropriate water supply valve.

In addition, the recently developed water supply valve has a function to control the flow path by the operation of the solenoid, and at the same time to install a non-return valve at the fluid outlet to prevent the back flow of the fluid by abnormal operation. This backflow prevention action is very sensitive 0.2kgf. It is designed so that backflow does not occur even by the extremely small pressure difference of cm, and it has reliable backflow prevention function even at the strong pressure difference of 10kgf.cm.

However, as in a conventional washing machine, when there are two separate water supply valves, a hot water supply valve and a cold water supply valve, each of these water supply valves is designed to be connected to a single flow path in the washing machine or mixed in a detergent box. In this case, when a pressure difference occurs between the hot water supply valve and the cold water supply valve, either of the water supply valves may not operate normally. In most cases, the water supply valve for the cold water is connected to the water supply pipe for home use, and the water supply valve for the hot water is connected to a heating device such as a boiler. In this case, the water pressure applied to the cold water supply valve directly connected to the water pipe is used. It is often the case that the water pressure higher than the water pressure applied to the hot water feed valve connected to a heating device such as a boiler is not supplied to the washing water to be introduced through the hot water feed valve. After the water supply is completed in such a state, the washing machine performs washing in a predetermined procedure according to the following washing administration, and thus the washing machine could not be made in a desired state. In addition, in the case of dissolving powder detergent in washing water using a detergent box and watering it in a water tank, incomplete washing was inevitable since the dissolution of the detergent or the temperature of the washing water could not be achieved as input to the control panel.

In addition, in the case of using a water supply device without a backflow check plate, the use of a backflow check plate is essential because the control of the normal flow path by the operation of the solenoid cannot be performed accurately.

Therefore, the present inventors use a water supply valve provided with a non-return valve, and in order to solve the above problems that occur when water is supplied using two water supply valves at the same time, the connection pipe connecting the water supply valve and the outlet of the connection pipe The present invention was completed by developing a cold / hot water hop water supply system equipped with a cyclone for mixing.

[Purpose of designation]

An object of the present invention is to provide a water supply device.

Another object of the present invention is to provide a water supply apparatus capable of mixing cold and hot water.

Still another object of the present invention is to provide a cold / hot water mixed water supply device in which problems such as backflow do not occur.

Another object of the present invention is to provide a cold / hot water mixed water supply apparatus that can promote the dissolution of the powder detergent using the mixed washing water.

Summary of the proposal

The present invention relates to a water supply device that can supply a mixture of cold water and hot water.

The cold and hot water mixing water supply device of the present invention is characterized by including two separate water supply valves for cold water and hot water, and one conduit and mixing vanes connecting the two water supply valves. The cold and hot water mixing water supply system of the present invention is uniformly mixed with cold water and hot water supplied from two separate water supply valves, and is supplied to a detergent box or a water tank to promote the dissolution of detergents and at the same time The reverse flow prevention pipe on the one side of the water supply valve is operated to prevent the water supply from occurring.

Such a cold / hot water mixed water supply device can supply only cold water or only hot water as well as a mixture of cold water and hot water as in the prior art.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[Explanation of specific example of design]

The cold and hot water mixing water supply device of the present invention includes two separate water supply valves (1) for cold water and hot water, one conduit (2) and two mixing vanes (6) connecting the two water supply valves (1). Characterized by including.

The cold / hot water mixed water supply device of the present invention is shown in FIG.

The water supply valve 1 has the function of controlling the flow path 3 by the operation of the solenoid by the signal of the microprocessor in the control panel, and at the same time, the water supply valve 1 having the backflow preventing plate 11 at the fluid outlet. The water supply valve 1 is a product that is currently available for purchase and can be easily used by those skilled in the art. One example of such water supply valve 1 is shown in FIG.

The conduit 2 has a first water supply valve connection 4 and a second water supply valve connection 5, as shown in FIG. 1. The flow path 3 of the portion where the second water supply valve connecting portion 5 is located has a diameter twice that of the flow path 3 of the first water supply valve connecting portion 4. The difference in diameter is to prevent an increase in water pressure that may occur when the amount of water inflow through the two separate water supply valves 1 doubles. In the case of inflow of water through the two water supply valves 1 without increasing the diameter, one or both of the two water supply valves 1 are operated due to the increase in the water pressure at the second water supply valve connecting portion 5. Incapacity can be caused. In particular, in most cases, the increase in the water pressure in the conduit 2 may be in a state in which the non-return valve 11 on the water supply valve 1 for the hot water with low water pressure is operated so that the hot water is not supplied.

The fluid outlet 7 formed at one end of the conduit 2 is provided with a mixing blade 6 capable of mixing cold water and hot water supplied through each water supply valve 1.

The mixing blade 6 uses the principle of cyclone, and when water pressure is applied to the mixing blade 6, the mixing blade 6 rotates in one direction to form a water flow to smoothly mix water. To do it.

More preferably, as shown in FIG. 3, a coil 9 capable of generating a magnetic force is provided on the outer circumferential surface of the fluid outlet 7, and a permanent magnet is installed on the shaft of the mixing blade 6. Thereby forcibly rotating the mixing blade (6).

This forcibly mixes cold water and hot water supplied through each water supply valve 1. In addition, it is possible to shorten the water supply time by increasing the flow rate in the conduit (2). Furthermore, the use of a cold / hot water mixed water supply device having such a forced mixing device offsets a slight increase in pressure that may occur during operation to prevent water shortage caused by the operation of the non-return plate 11 to enable smooth water supply. .

Effects of the construction and operation of the subject innovation are as follows.

The cold and hot water mixing water supply device of the present invention uniformly mixes cold water and hot water supplied from two separate water supply valves 1 and supplies them to a detergent box or a water tank to promote the dissolution of detergents and to supply each water supply valve (1). The non-return valve 11 on the water supply valve 1 side of the water supply valve 1 is prevented from causing water supply failure due to the difference in water pressure between the two.

Such a cold / hot water mixed water supply device can supply only cold water or only hot water as well as a mixture of cold water and hot water as in the prior art. This function allows to give more washing function to the washing machine. For example, lukewarm washing water mixed with cold water and hot water can provide suitable washing conditions for washing laundry such as wool. In addition, as in the conventional case, when only hot water is supplied, a washing process may be performed under suitable washing conditions for washing laundry with heavy contamination.

Although the present invention has been described in detail only with respect to the embodiments described above, it can be changed or modified within the spirit and scope of the present invention will be apparent to those skilled in the art to which the present invention belongs and such changes or modifications are registered utility model attached It should be limited by the claims.

Claims (6)

Two separate water supply valves 1 for cold water and hot water, one conduit 2 connecting these two water supply valves 1, and a mixture installed at the fluid outlet 7 of the conduit 2 Cold and hot water mixing water supply device characterized in that it comprises a wing (6). The cold / hot water mixed water supply device according to claim 1, wherein the water supply valve (1) is a water supply valve (1) having a backflow preventing plate (11). 2. A cold / hot water mixed feeder according to claim 1, characterized in that the conduit (2) has a first feedwater valve connection portion (4) and a second feedwater valve connection portion (5). 2. The flow path (3) of claim 1 wherein the flow path (3) of the portion of the conduit (2) where the second feed valve connection portion (5) is located has a diameter twice that of the flow path (3) of the first feed valve connection portion (4). Cold and hot water mixed water supply device characterized by having. The mixing vane (6) according to claim 1, wherein a mixing blade (6) capable of mixing cold water and hot water supplied through each water supply valve (1) is installed at the fluid outlet (7) formed at one end of the conduit (2). Cold and hot water mixed water supply device characterized in that. 6. The mixing blade (6) according to claim 5, wherein a coil (8) capable of generating a magnetic force is provided on an outer circumferential surface of the fluid outlet (7), and a permanent magnet is installed on the shaft of the mixing blade (6). ), A cold / hot water mixed water supply device, which can be forcibly rotated.