JPH0230525Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention mainly relates to a water governor device with a water drain installed in an instantaneous water heater or other appliances.

(Prior Art) Conventionally, as shown in Fig. 3, a valve body e is attached to a bottomed cylindrical governor seat d in a vertical water channel body c having a water inlet a at the lower end and a water outlet b at the upper end. A governor valve f that is slidably housed is provided, and the governor valve f
It is generally known that a water inlet (a) and a water outlet (b) are communicated with each other via a water inlet (a) and a water outlet (b) are communicated with each other, and the amount of water at the water outlet (b) is adjusted by the governor valve (f).

However, with this device, when opening the drain valve to drain the water inside the appliance, the water in the governor valve f cannot be drained, and according to this, the valve seat e freezes to the governor seat d, and the governor Valves may become inoperable.

(Problems to be Solved by the Invention) The object of the present invention is to provide a water governor valve device with water drain that can reliably drain the water accumulated in the governor valve when draining water from the appliance.

(Means for Solving the Problems) The present invention allows a valve body to freely slide on a bottomed cylindrical governor seat within a vertical water channel body that has a water inlet at the lower end and a water outlet at the upper end. A governor valve housed in a water outlet is provided, and a water inlet and a water outlet are communicated through the governor valve, and an opening is provided on the lower surface of the seat of the governor valve, and a hole is provided in the lower surface of the opening when water flows. A flow valve is provided which closes the opening when pushed by water flow pressure.

(Example) An example of the present invention will be described with reference to an example shown in the drawings.

In the drawings, reference numeral 1 indicates a water channel body that constitutes a part of a water passage 2 disposed vertically in a device body (not shown), and inside the water channel body 1 is a water inlet 3 at the lower end thereof.
Water is supplied from the channel body 1 and flows out from the water outlet 4 at the upper end, causing a water flow from the lower part to the upper part within the water channel body 1.

Reference numeral 5 indicates a water governor valve provided within the waterway main body 1, and the water governor valve 5 is slidably inserted into a rigid cylindrical governor sheet 6 along the waterway main body 1 and the governor sheet 6. The water governor valve 5 is composed of a valve body 7, and the water governor valve 5 is supported and fixed to a flange 6a provided in the water channel body 1 at the upper peripheral surface of the governor seat 6. The governor seat 6 of the governor valve 5 has an inlet opening 6e on its side surface that communicates the inside of the governor seat 6 with the water inlet 3 side, an outlet opening 6c with a valve seat 6b at the upper part, and a pressure A chamber 6d is provided.

The valve body 7 has a constriction part 7a on the upper part that throttles the amount of water between it and a valve seat 6b formed on the governor seat 6, and an enlarged part 7b whose lower surface faces the pressure chamber 6d of the governor seat 6, The enlarged portion 7b has a slightly smaller diameter than the inner circumferential surface of the governor seat 6 so as to form a small gap l between its circumferential surface and the governor seat 6,
In order to cause the water supply from the water inlet 3 to flow into the pressure chamber 6d through the gap 1, and to induce this, water is inserted into the center of the valve body 7 through the pressure chamber 6d and the inlet/outlet 4 side. A passage 7c was formed.

In the illustrated example, a piston 8 that is operated by water pressure is provided in the water channel main body 1 connected to the water outlet 4 side, and an operating rod 8a connected to the piston 8 is made to protrude outside the water channel main body 1. A water heat exchanger 2a formed in a part of the water passageway when water is passed through the operating rod 8a.
A micro switch 10 intervening in the operating circuit of an electromagnetic gas valve (not shown) facing the gas supply path of the gas burner 9 is closed.

In the drawing, reference numeral 11 indicates a spring that urges the piston 8 downward. The configuration up to now is not particularly different from that commonly used in the past.

In such a case, the present invention provides an opening 6d on the bottom surface of the governor sheet 6, and also provides an opening 6e.
A flow valve 12 is provided on the lower surface of the flow valve 12 which closes the opening 6e by being pushed by water flow pressure during water flow.
2 is made up of a support tube 13 whose axis is aligned with the axis of the governor sheet 6 in the channel body 1, which is slidably fitted and supported by an axis rod 12a at the root. The opening 6e is moved downward and moved upward by the water pressure during water flow to close the opening 6e.

However, as shown in FIG. 2, the flow valve 12 may be opened by using a spring pressure, for example, a spring 11 that causes the piston 8 to spring downward. To explain this, in this embodiment, a protrusion 7e is provided at the lower end of the valve body 7, and the flow valve 12 is urged by a relatively weak spring 14 toward the side where it contacts the protrusion 7e, that is, the valve closing side. The spring 12 that pushes the piston 8 downward is set to have a stronger spring force than the spring 14.

In this way, when water is not flowing, when the piston 8 is pressed downward by the spring 11, the valve body 7 is pushed down by the spring 11, and the flow valve 12 is also opened by being pushed by the valve body 7. . In the drawings, reference numeral 15 denotes a packing provided on the surface of the flow valve 12 facing the opening 6e.

(Function) In this case, since the flow valve 12 is always kept open when water is not flowing, the drain valve 16 provided in the water passage 2 is opened to drain water from the water passage 2. At this time, the water in the governor valve 5 can also be drained out through the opening 6e.

When water is flowing, the flow valve 12 is pushed by the water flow pressure.
A water pressure chamber 8 is formed in the lower part of the governor seat 6 in order to close the opening 6e, and the valve body 7 moves the valve seat 6 according to the water pressure in the water pressure chamber 8, that is, the water pressure on the water inlet 3 side.
The amount of water on the water outlet 4 side is controlled to be always constant by adjusting the distance formed between the valve body 7 and the valve seat by approaching and separating them from each other.

In this way, according to the present invention, an opening is provided on the lower surface of the seat of the governor valve, and a flow valve is placed on the lower surface of the opening, which is pressed by water when water is passed through and closes the opening. When the water passageway is drained by keeping the opening open, the water in the governor valve can be simultaneously drained through the opening, thereby preventing the water governor valve from operating due to freezing. It has the effect of not causing any inconvenience.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of one example of implementing the present invention;
The figure is a cutaway side view of another embodiment, and FIG. 3 is a cutaway side view showing a conventional example. 1... Channel main body, 3... Water inlet, 4... Water outlet, 5... Water governor valve, 6... Governor seat, 7
... Valve body, 12 ... Flow valve.

Claims (1)

[Claims for Utility Model Registration] 1. A governor in which a valve body is slidably housed in a bottomed cylindrical governor seat within a vertical water channel body having a water inlet at the lower end and a water outlet at the upper end. In a device that is provided with a valve and communicates a water inlet and a water outlet through the governor valve, an opening is provided on the lower surface of the seat of the governor valve, and the lower surface of the opening is pressed by the water flow pressure when water flows. A draining water governor device comprising a flow valve that closes the opening. 2. A water governor with drainage as set forth in claim 1 of the utility model registration claim, which is configured to move the flow valve to the valve opening side by its own weight. 3. A draining water governor as set forth in claim 1 of the utility model registration, which is configured to move the flow valve to the valve opening side using spring pressure.