JPH045349A - Hot water washing device - Google Patents

Abstract

PURPOSE:To supply wash water of suitable temperature always from the point of time starting injection by branching a bypass water line, provided with a solenoid valve and a throttle, from a main water line in the upstream side of an instantaneous hot water supplier and making a divided flow possible for a fixed time. CONSTITUTION:A hot water washing device is constituted by arranging as instantaneous hot water supplier 2 in a main water line 1 and providing a cylinder 4 and a nozzle rod 5 in the downstream side of the supplier 2. Next, a bypass water line 10, provided with a solenoid valve 11 and a throttle 12, is branched from the main water line 1 in the upstream side of the instantaneous hot water supplier 2 to make a divided flow possible to the bypass water line 10 for a fixed time. When a low water pressure is generated in the cylinder 4 at the time of protruding the nozzle rod 5, a supply amount of water to the instantaneous hot water supplier 2 is reduced to within a range of its heating power by dividing a flow partially to the bypass water line 10 from the main water line 1. In the case of generating a high pressure in the cylinder 4, wash water of suitable temperature is always supplied by suppressing the divided flow.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hot water washing device used for a hot water washing toilet seat and others.

[Conventional technology]

2. Description of the Related Art Conventionally, as a hot water washing device used for a hot water washing toilet seat, etc., one shown in FIG. 3 has been known.

This device has an instantaneous water heater 2 disposed in the main water channel 1, and on the downstream side thereof, a cylinder 4 with a hot water supply port 3 disposed at the rear end, and a cylinder 4 fitted inside the cylinder 4 to supply hot water from the hot water supply port 3. It is equipped with a protruding nozzle opening and a dot 5.

On the upstream side of the instantaneous water heater 2, there is a solenoid valve 6 and a water pressure control valve 7.
, a pump 8 serving as water supply means, and a strainer 9 are provided.

The operation of this device is to operate the pump 8 and strainer 9.
The water passes through the water pressure control valve 7 and the instantaneous water heater 2, becomes cleaning water heated to a predetermined water pressure, water volume, and predetermined temperature, and is supplied to the hot water supply port 3, where the water pressure The nozzle rod 5 protrudes from the cylinder 4 and cleaning water is ejected from the ejection port 15.

(1111 to be solved by the invention) However, in the hot water cleaning device of the above-mentioned prior art, the nozzle rod 5 is driven using the cleaning water jetted from the spout 15, and during this time, the nozzle rod 5 is not projected. The water pressure when the ejection is completed is
Compared to the water pressure when hot water is jetted out from the spout 15, the force is lower, so while the nozzle rod 5 is protruding, the amount of water flowing through the instantaneous water heater 2 is lower. Since the heating capacity is exceeded, the cleaning water that is first jetted out from the spout 15 after the nozzle rod 5 has finished protruding becomes low-temperature water.

The nozzle cleaning device of the present invention has been made in view of the problems of the prior art described above, and its purpose is to provide a hot water cleaning device that sprays cleansing hydraulic power at an appropriate temperature from the time the spray starts. .

[Means to solve the problem]

The hot water cleaning device of the present invention has an instantaneous water heater in the main channel, and on the downstream side thereof, a cylinder having a hot water supply port at the rear end;
In a hot water cleaning device equipped with a nozzle port that is fitted into the cylinder and protrudes when hot water is supplied from the hot water supply port, a solenoid valve and a throttle are provided from the main water channel on the upstream side of the instantaneous water heater. It is characterized by branching off the Inogusu waterway and allowing the flow to flow freely into a bypass waterway for a certain period of time.

[Function] The hot water cleaning device of the present invention can branch a bypass waterway provided with a solenoid valve and a throttle from the main waterway on the upstream side of the instantaneous water heater, and can divert the flow to the bypass waterway for a certain period of time. When the water pressure inside the cylinder is low when the rod protrudes, water supplied from the pump is diverted from the main waterway to a partial bypass waterway to reduce the amount of water supplied to the instant water heater and keep it within its heating capacity. This allows cleaning water at an appropriate temperature for the human body to be sent to the cylinder.

In addition, after the nozzle rod protrudes, the pressure inside the cylinder becomes high, and the amount of water supplied to the instantaneous hot water heater is reduced to within the heating capacity without being diverted to the bypass waterway. The valve prevents the flow from flowing into the bypass waterway. In this way, cleaning water at a temperature suitable for the human body is always sent to the cylinder.

[Example] An example of the present invention will be described in detail based on FIGS. 1 and 2.

This example is an example of application to a hot water bidet toilet seat, and as shown in Fig. 1, an instantaneous water heater 2 is arranged in the main water channel 1, and a hot water inlet 3 is installed at the rear end on the downstream side. The nozzle rod 5 is fitted inside the cylinder 4 and projects when hot water is supplied from the hot water supply port 3.

On the upstream side of the instantaneous water heater 2, there is a solenoid valve 6 and a water pressure control valve 7.
A pump 8 serving as a water supply means, a check valve 18, a strainer 9, and a relief valve 19 branched from the main waterway 1 are provided.

A bypass waterway 10 is branched from the main waterway 1 between the solenoid valve 6 and the water flow control valve 7, and a solenoid valve 11 and a throttle 1 are connected to the bypass waterway 10.
2 is provided.

FIG. 2 shows the cylinder 4 and the nozzle rod 5 fitted therein.

The nozzle rod 5 has a piston 13 at the rear end through which water can freely flow, a through hole 14 is provided inside, and a jet nozzle 15 is provided at the tip of the nozzle rod 5.
is provided. Also, the piston 13 has a packing 1.
6 and a return spring 17 are provided, and the return spring 17 is always
The piston 13 is urged toward the hot water supply port 3 side, and the nozzle rod 5 is housed in the cylinder 4.

The operation of this device is to operate the pump 8 and strainer 9.
The water passes through the instantaneous water heater 2, becomes cleaning water heated to a predetermined temperature, is supplied to the hot water supply port 3, and the nozzle rod 5 protrudes from the cylinder 4 due to the water pressure.

At this time, the cylinder 4 when the nozzle rod 5 is protruding
The water pressure inside the nozzle rod 5 is considerably lower than the water pressure when ejection is completed and hot wash water is ejected from the spout 15. 8 is partially diverted from the main waterway 1 to the bypass waterway 10.

As a result, the amount of water supplied to the instantaneous water heater 2 is within its heating capacity, and washing water at an appropriate temperature for the human body is supplied to the cylinder 4.
sent to.

In addition, after the nozzle rod 5 protrudes, the pressure inside the cylinder 4 becomes high and the amount of water supplied to the instantaneous water heater 2 is an appropriate amount for the heating capacity.
I prevents the flow from flowing into the bypass waterway 10.

In this way, it is possible to spray cleansing water at an appropriate temperature onto the human body from the moment the spray starts.

〔Effect of the invention〕

According to the hot water cleaning device of the present invention, a bypass waterway provided with a solenoid valve and a throttle is branched from the main waterway on the upstream side of the instantaneous water heater, and when the nozzle rod is protruded, the water supply from the pump is diverted from the main waterway. Since a portion of the water is diverted to the bypass waterway, the amount of water supplied to the instantaneous hot water heater is within the range of its heating capacity, and washing water at an appropriate temperature for the human body is sent to the cylinder, so that it does not reach the human body from the moment the water starts spouting. This has the effect of spouting cleaning water at an appropriate temperature.

In addition, after the nozzle rod protrudes, a t provided in the bypass waterway is
The iiff valve can suppress the flow of water to the bypass waterway, but at this time, the pressure inside the cylinder becomes high, and even if the water is not diverted to the bypass waterway, the amount of water supplied to the instant water heater will be an appropriate amount for the heating capacity. Even from the time when the spraying starts, it is effective in constantly spraying cleansing water at an appropriate temperature to the human body.

[Brief explanation of the drawing]

FIG. 1 is a piping diagram of an embodiment of the present invention, FIG. 2 is a sectional view of the main part thereof, and FIG. 3 is a piping diagram of a conventional example. 1- Main waterway, 2- Instantaneous water heater, 3- Hot water supply port, 4- Cylinder, 5- Nozzle rod, 6- Magnetic valve, 7- Water force control valve, 8 - Pump, 9- Strainer, 10 Bypass waterway , 11-electromagnetic valve, 12-throttle 13-piston, 14-through hole, 15-spout 16-packet, 17-return spring, 18-check valve, 19-relief valve.

Claims (1)

[Claims] (1) An instant water heater is arranged in the main waterway, and on the downstream side thereof, a cylinder with a hot water supply port arranged at the rear end, and a nozzle rod that is fitted inside the cylinder and protrudes when hot water is supplied from the hot water supply port. A hot water cleaning device comprising: a bypass waterway provided with an electromagnetic valve and a throttle is branched from a main waterway on the upstream side of an instantaneous water heater, so that water can be freely diverted to the bypass waterway for a certain period of time. .