JPS60185589A - Water feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a water supply device for equipment that is directly connected to a water supply facility such as a water supply facility and supplies water.

(Conventional configuration and its problems) As a device that supplies water, all examples of electric washing machines are shown. Figure 1 shows an example of a centrifugal dehydrating washing machine. In the figure, 1 is a housing, and 2 is a housing that receives washing water. The outer tank 3 is a washing and dehydrating tank provided inside the outer tank 2, and has a stirring blade 4 in the center and a large number of small holes 5 for draining water in the side wall. The mechanical case 6 has a mechanism for transmitting the drive of a motor 7 so as to rotate only the agitating blade 4 during washing, and to rotate the washing/dehydration tank 3 during dehydration. The drive is transmitted to 6. 10 is a support plate on which the outer tank 2, mechanical case 6, motor 7, etc. are arranged. or,
These are suspended from the housing 1 by rods 11. 1
2 is a drainage pump, and 13 is a drainage hose, through which washing water and the like are drained.

14 is a solenoid valve, which is directly connected to the water supply or water heater through a hose or the like. The controller then opens and closes the valve, allowing water to be supplied when necessary. 15
1 is a water supply port, and 16 is a water supply hose for connecting the solenoid valve 14 and the water supply port 15, through which water is supplied to the inside of the washing and dewatering tank 3.

Here, when directly connected to the water supply equipment, if a detergent with high foaming properties is used and a lot of foam is generated and reaches the vicinity of the water supply port 15 and the water supply equipment becomes negative pressure, the foam will be generated with force. Infiltrate inside water supply equipment. In order to prevent the intrusion of bubbles, a dish-shaped part is provided in the middle of the water supply channel to once collect water, and then connect it to the water supply port 15 with a hose or the like. Alternatively, there are some cases in which a special part with a valve for preventing backflow is inserted in the middle of the water supply hose 16.

However, all of these require special parts to be inserted into the middle of the hose, which increases the number of parts and requires space to store them.

In particular, if a dish-shaped reservoir component is provided, it will be very large.

(Objective of the Invention) The present invention solves these conventional problems, and provides a water supply device that simplifies the water supply path and prevents backflow without taking up a portion of the water supply path.

(Structure of the Invention) The water supply device of the present invention includes a solenoid valve that is installed inside a device to which water is supplied and can be directly connected to the water supply equipment, a water supply port that is installed at a predetermined location of the device, and one end of which is connected to the solenoid valve. a water supply hose, the other end of which is connected to each of the water supply ports, and the other end of which has a substantially conical shape; and the conical portion movably disposed inside the connection portion between the water supply port and the water supply hose. The water inlet is provided with means for preventing the sphere from being discharged, thereby preventing backflow.

(Description of Embodiment) Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In FIGS. 2 and 3, reference numeral 17 indicates a water supply hose, which is the key point of the present invention, and is made of a material such as rubber that has sealing properties. A portion 17a having a shape is provided. The stem 19) is inserted when connecting the water supply hose 17 and the water supply port 18. Is the diameter of peel 19 one? - The outer surface of the tube 19 is made large enough to come into close contact with the conical portion 17a of the water supply hose. Further, in order to prevent the peel 19 from being discharged, the water supply port 18 is provided with a lip tSa, or its diameter is partially reduced.

To explain the operation in the above configuration, when the water supply equipment becomes negative pressure, the solenoid valve 14 side of the water supply hose 17 becomes negative pressure, air flows from the water supply port 18 side to the solenoid valve 14 side, and the peel 19 moves towards the water supply hose 17 and is pressed against the substantially conical portion 17a of the water supply hose 17 due to its negative pressure.

Therefore, it is solemnized at this portion, and the flow of air from the water supply port 18 is stopped. This can prevent bubbles near the water supply port 18 (=1) from being sucked into the water supply equipment.

Next, in the case of water supply, &-/ and 19 is the third
Move to the water supply port 18 side as shown by the two-dot chain line in the figure. Therefore, water can be supplied through the periphery of the water girder 19.

In this way, the movement of the ball 19 can prevent backflow and supply water.

(Effect of the invention) As is clear from the above embodiments, the water supply device of the present invention has the following features:
In particular, by using the water supply hose as a valve seat and inserting J(-L), a backflow prevention device can be installed very easily in a part of the water supply route.
It has many advantages, such as reducing the number of parts and assembly man-hours by adding only additional parts, and does not take up much space in terms of size and space, and its practical effects are impressive.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing an example of a centrifugal dehydrating washing machine, FIG. 2 is a cross-sectional perspective view of a water supply device showing an embodiment of the present invention, and FIG.
The figure is an explanatory diagram of the same operation. 14...'K gi valve, 17... Water supply hose, 17
a... Substantially conical portion,] 8-Water supply port, 19... Ball. Figure 1 Figure 2 Figure 3 Q

Claims (1)

[Claims] a solenoid valve installed in a device to which water is supplied and directly connected to water supply equipment; a water supply port installed at a predetermined location of the device; one end connected to the solenoid valve and the other end connected to the water supply port; The other end has a water supply hose having a substantially conical shape, and a sphere having a diameter that can be brought into close contact with the conical part that is movably installed inside the connection part between the water supply port and the water supply hose, and the water supply hose has a substantially conical shape. A water supply device having a mouth provided with means for preventing the spheres from being discharged.