JP2001347191A - Electromagnetic water supply valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce water flowing sound of an electromagnetic water supply valve loaded on a domestic electric instruments (for example, a fully automatic washer, a dish washer, a dryer or the like). SOLUTION: A foam generating device is provided in the flow-out port of the pilot valve type electromagnetic water supply vale for opening and closing a main valve seat by opening and closing a pilot olifice of a diaphragm valve with a plunger to be linked with the diaphragm valve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main valve seat, which is installed in a water supply pipe line of tap water or the like, and is operated by opening and closing a pilot orifice of a diaphragm valve by a plunger. The present invention relates to an electromagnetic water supply valve of a pilot valve type, and more particularly to an improvement in reducing running water noise when the valve is opened.

[0002]

2. Description of the Related Art Conventionally, household electric appliances using water such as tap water (for example, fully automatic washing machines, dishwashers, local washing devices, shower devices, water purifiers, sterilizers, and continuous electrolytic water generation). For water treatment equipment such as water heaters, bath water treatment equipment, gas water heaters, late-night electric water heaters, dental mouthwashers, car washers, etc.), a pilot valve type electromagnetic water supply valve (a valve that opens and closes water) And so on. Then, for example, as disclosed in JP-A-7-178279, etc.
Improvements have been made to reduce the noise of running water by providing a foam generator upstream of the spout for spouting water into the washing tub in the form of a shower.

[0003]

However, there is a problem that the running water noise generated when passing through a pilot-type electromagnetic water supply valve is not improved.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a pilot valve type electromagnetic water supply valve with less running water noise. Things.

[0005]

In order to achieve the above object, a solenoid valve water supply valve of a pilot valve type according to the present invention is operated by opening and closing a pilot orifice of a diaphragm valve by a plunger to interlock the diaphragm valve. A foam generator is provided at the outlet of the pilot-type electromagnetic water supply valve that opens and closes the valve seat.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a pilot valve type electromagnetic water supply valve 10 of the present invention. In the pilot water supply valve 10 of the present invention, the inlet 11
And an inflow pipe 12, an inflow chamber 13, a main valve seat 15 provided at an end face of the outflow pipe 14, and a partition wall 18 between an inner wall 20 and an outer peripheral portion of the outflow pipe 14. A diaphragm displaceable by incoming water pressure so as to close a main valve seat 15 in a valve body 17 having a small chamber 19 which is a part of an inflow chamber 13 divided by two partition walls 18 and an outlet 16. Valve 3
The guide case 40 is pressed so as to press the liquid-tight packing portion 33 of the diaphragm valve 30 against the valve body 17, and the pilot orifice 27 of the diaphragm valve 30 is provided on the inner periphery of the guide case 40. A plunger 42 to which a plunger sheet 41 is fixed so as to be closed, and a coil spring 43 pressing the plunger 42 are housed.
A copper wire 44 called a wire is wound around a cylindrical bobbin 45 and a solenoid 47 connected to a terminal piece 46 is provided.

FIG. 2 is an enlarged sectional view of a main part of the outlet 16 and the foam generator 50. In the outlet 16, for example, a triple substantially circular flat screen 52 (for example, Japanese Unexamined Patent Publication No.
As disclosed in Japanese Patent Publication No. 313989, etc., a substantially circular flat screen of 60 mesh or the like is folded, a hollow cylindrical frame 54, and a fine coarse flat screen 52 (for example, a substantially circular shape of 60 mesh and 40 mesh). And a foam generating device 50 in which a flat mesh is stacked in order. With this, 3 dB reduces running water noise.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and many combinations and modifications can be made without departing from the spirit of the invention. Of course it can be done.

[0009] For example, each outflow port of a solenoid valve (e.g., one in the case of a single unit, two in the case of a two-unit system, Similarly, in the case of a triple type, there are three types. Further, the foam generating device 50 may be provided at an outlet of a direct-acting valve type electromagnetic water supply valve or the like.

In order to further reduce the noise of flowing water, for example, a foam generating device is also provided at a water discharging port of a water discharging section connected to the other end of a hose or the like connected to an outlet of an electromagnetic water supply valve of a pilot valve type. May be provided.

[0011]

The pilot valve type electromagnetic water supply valve according to the present invention has the effect of reducing running water noise.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a pilot valve type electromagnetic water supply valve of the present invention.

FIG. 2 is an enlarged sectional view of a main part of an outlet and a foam generator.

[Explanation of symbols]

10: electromagnetic water supply valve, 11: inflow port, 12: inflow pipe,
13 ... inflow chamber, 14 ... outflow line, 15 ... main valve seat, 16 ...
Outlet, 17: Valve body, 18: Partition wall, 19: Small chamber, 2
0: inner wall, 27: pilot orifice, 30: diaphragm valve, 33: liquid-tight packing, 40: guide case, 41: plunger seat, 42: plunger, 43
... Coil spring, 44 ... Copper wire, 45 ... Cylindrical bobbin, 46 ... Terminal piece, 47 ... Solenoid, 50 ... Foam generator, 51 ... Holder, 52 ... Triple substantially circular flat net, 53 ... Precision roughly circular shape Flat net, 54 ... hollow cylindrical frame

Claims (1)

[Claims] 1. A foam generating device is provided at an outlet of a pilot valve type electromagnetic water supply valve that opens and closes a main valve seat by opening and closing a pilot orifice of a diaphragm valve by a plunger. An electromagnetic water valve with a pilot valve.