JPH041337A - Warm water cleaner - Google Patents

Abstract

PURPOSE:To jet cleaning water of optimal temperature by a method in which a hot water storage cylinder incorporated with a water-tight slide piston is provided in a bypass water channel in which an instant hot water supplier is provided to main water path in a circumventing form in such a way as to enable hot water to be freely supplied to a water-pressure cylinder for a fixed time period. CONSTITUTION:A warm water cleaner consists of a bypass water channel 6, a hot water supply cylinder 7 having a piston 7a and a return spring 7b, and constant flow-rate valves 8 and 9. A solenoid valve 10 is opened, a pump 12 is operated to flow water, most of water is directed into the cylinder 7 through the valve 9 of a greater set flow rate than the valve 8, and the piston 7a is pushed against the force of the spring 7b. Hot water stored in the cylinder 7 is supplied into a water-pressure cylinder 4, a nozzle rod 5 is projected, and hot water is supplied through an instant hot water supplier 8. Cleaning water of optimal temperature can thus be jetted from a jet starting time.

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.

[Prior Art] Conventionally, as a hot water washing device used for a hot water washing toilet seat, etc., the one shown in FIG. 2 has been known.

This device has an instantaneous water heater 2 disposed in a main channel 1, and has a hydraulic cylinder 4 at its tip, which has a hot water supply port 3 at its rear end, and a hydraulic cylinder 4 fitted inside the hydraulic cylinder 4 to supply hot water from the hot water supply port 3. The nozzle rod 5 is provided with a protruding nozzle rod 5.

A t-magnetic valve 10 and a water force control valve 11 are arranged on both sides of the instantaneous water heater 2 in the main waterway, and furthermore, a pump 12 and a strainer 13, which serve as water supply means, are provided on the upstream side.

The operation of this device is to operate the pump 12, and by opening the solenoid valve 10, the water that has passed through the strainer 13 is passed through the water pressure control valve 11 and the instantaneous water heater 2, and is adjusted to a predetermined water pressure, water volume, and The cleaning water is heated to a predetermined temperature,
Hot water is supplied to the hot water supply port 3, and the nozzle rod 5 protrudes from the hydraulic cylinder 4 under the water pressure, and cleaning water is jetted from the spout 16.

[Problem to be solved by the invention]

However, in the conventional hot water cleaning device described above, the nozzle rod 5 is driven using the cleaning water jetted from the spout 16, and during this time, that is, when the nozzle rod 5 is projected, the water pressure is applied until the projection is completed. As a result, the water pressure is considerably lower than the water pressure when hot washing water is spouted from the spout 16, and the amount of water passing through the instant water heater 2 exceeds its heating capacity, causing the inside of the cylinder 4 to After low-temperature water is supplied and the nozzle rod 5 has finished protruding,
The cleaning water that first jets out from the spout 16 has a low temperature.

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 spouts cleaning water at an appropriate temperature from the time the jetting starts. .

[Means for Solving the Problems] The hot water cleaning device according to claim (1) includes an instantaneous water heater disposed in the main waterway, a hydraulic cylinder downstream of the instantaneous water heater, and a water pressure cylinder having a hot water supply port disposed at the rear end thereof; In a hot water cleaning device equipped with a nozzle rod that is fitted inside a hydraulic cylinder and protrudes when hot water is supplied from a hot water supply port, a bypass waterway that bypasses an instantaneous water heater is provided in the main waterway, and water flows to the upstream and downstream sides of the hot water cleaning device. A hot water storage cylinder having an inlet is provided, a piston that slides watertightly is fitted into the hot water storage cylinder, and hot water can be freely supplied from the hot water storage cylinder to a hydraulic cylinder for a certain period of time.

A hot water cleaning device according to claim (2) is characterized in that dedicated constant flow valves are respectively provided upstream of the instantaneous hot water heater and the hot water storage cylinder according to claim (1).

The hot water cleaning device according to claim (3) is characterized in that the hot water storage cylinder according to claim (1) is provided with a return spring that urges the piston fitted therein toward the upstream side. .

[Effect]

The hot water cleaning device according to claim (1) is provided with a bypass waterway that bypasses the instantaneous water heater in the main waterway, a hot water storage cylinder having an inlet on an upstream side and a downstream side thereof, and a hot water storage cylinder having an inlet on an upstream side and a downstream side thereof. A piston that slides watertightly is fitted into the cylinder, and hot water can be freely supplied from the hot water storage cylinder to the hydraulic cylinder for a certain period of time, so when the nozzle rod protrudes,
In other words, when the water pressure in the hydraulic cylinder is low, hot water is supplied to the hydraulic cylinder from the hot water storage cylinder provided in the bypass waterway, and when the nozzle rod has finished protruding, the water pressure in the hydraulic cylinder becomes high, and the amount of water supplied from the water supply means is reduced. By occasionally supplying hot water via an instantaneous water heater, cleaning water at an appropriate temperature is always supplied into the hydraulic cylinder.

The hot water cleaning device according to claim (2) has dedicated constant flow valves on the upstream sides of the instantaneous hot water heater and the hot water storage cylinder, respectively, and the flow rate of the constant flow valve provided upstream of the hot water storage cylinder is used to control the instantaneous hot water supply. By setting the flow rate to be larger than the constant flow valve installed upstream of the container, when the nozzle rod starts protruding, more water is supplied from the water supply means to the hot water storage cylinder, the hot water stored in the hot water storage cylinder is pushed out, and the water pressure cylinder Hot water is supplied to

In the hot water cleaning device according to claim (3), a return spring is disposed inside the hot water storage cylinder and urges the piston fitted therein and sliding watertightly toward the upstream side, so that the water pressure on the upstream side is applied to the return spring. When the biasing force is greater than the biasing force, the warm water stored in the hot water storage cylinder is pushed out to the downstream side of the bypass waterway. Also, if the water pressure on the upstream side becomes smaller than the biasing force of the return spring,
Hot water flows into the storage cylinder from the downstream side of the bypass waterway.

〔Example〕 An embodiment of the present invention will be described in detail based on the first part.

This embodiment is an example of application to a hot water bidet toilet seat, and as shown in FIG. The water pressure cylinder 4 is provided with a nozzle rod 5 that is fitted inside the water pressure cylinder 4 and projects when hot water is supplied from the hot water supply port 3, and a bypass waterway 6 that bypasses the instantaneous water heater 2 is provided in the main waterway l. A hot water storage cylinder 7 having an inflow lower C17d is provided on the upstream side and the downstream side of the bypass waterway 6.

A dedicated constant flow valve 8.9 is provided on the upstream side of the instantaneous hot water heater 2 and the hot water storage cylinder 7, respectively, and the flow rate of the constant flow valve 9 provided on the upstream side of the hot water storage cylinder 7 is made larger than that of the other. It is set.

Inside the hot water storage cylinder 7, there is a piston 7a that slides in a watertight manner.
is fitted inside the piston 7a, and the piston 7a is always urged toward the upstream side by a return spring 7b, and its cylinder capacity is approximately equal to or slightly larger than that of the hydraulic cylinder 4.

A magnetic valve 10 is connected to the main water channel 1 with an instantaneous water heater 2 in between.
A water force valve 11 is provided, a pump 12 and a strainer 13 serving as water supply means are provided upstream thereof, and a check valve 20 and a relief valve 21 are further provided.

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

The nozzle rod 5 has a piston 14 at the rear end through which water can freely flow, a through hole 15 is provided inside, and a jet nozzle 16 is provided at the tip of the nozzle rod 5.
is provided. Also, the piston 14 has a packing 1.
8 and a return spring 19 are provided, and the return spring 19 is always
The piston 14 is urged toward the hot water supply port 3 side, and the nozzle rod 5 is housed in the hydraulic cylinder 4.

The operation of this device is to open the 1tfli valve lO and operate the pump 12, which applies water pressure to the constant flow valve 8.9 disposed upstream of the instantaneous water heater 2 and the hot water storage cylinder 7. Since the flow rate of the valve 9 is set larger than the flow rate of the constant flow valve 8, most of the water that has passed through the strainer 13 flows into the hot water storage cylinder 7 through the inflow lower C.

The water flowing into the hot water storage cylinder 7 pushes the piston 7a against the urging force of the return spring 7b, and the hot water that has been kept warm inside the hot water storage cylinder 7 is sent into the hydraulic cylinder 4 through the hot water supply port 3.

The hot water sent into the hydraulic cylinder 4 presses the piston 14 against the biasing force of the return spring 19, causing the nozzle rod 5 to protrude from the hydraulic cylinder 4, as shown in FIG.

Since the volumes of the hydraulic cylinder 4 and the hot water storage cylinder 7 are set to be -, when the nozzle rod 5 completes protrusion, the piston 7a presses to block the inflow lower d, and the movement of the flowing water within the hot water storage cylinder 7 is caused. The water supply from the pump 12 is mainly supplied to the instantaneous water heater 2.

From now on, that is, after the nozzle rod 5 has finished protruding, the water pressure inside the hydraulic cylinder 4 will be higher than when the nozzle loft 5 was protruding, and the amount of water flowing through the main waterway 1 will be increased by the heating of the instantaneous water heater 2. It is within the range of ability.

In this way, in this embodiment, the nozzle rod 5
Hot water at an appropriate temperature can be supplied to the hydraulic cylinder 4 from the time of protrusion, and cleaning water at an appropriate temperature can be jetted from the beginning of the jetting.

When the cleaning is finished, the pump 12 is stopped to eliminate water pressure in the main waterway 1, the nozzle rod 5 is housed in the hydraulic cylinder 4 by the return spring 19, and the piston 7a is moved by the biasing force of the return spring 7b. is pushed back, and the heated wash water remaining in the hydraulic cylinder 4 and instantaneous water heater 2 is sucked into the hot water storage cylinder 7 through the inflow lower d and stored.

Although this embodiment shows an example of having one spout 16, it is also possible to arrange a plurality of sets of solenoid valves 10, hydraulic cylinders 4, and nozzle rods 5 in parallel in the main water channel 1, and switch the hot water supply to each one. can be used.

[Effects of the Invention] According to the hot water cleaning device according to claim (1), which has the above configuration, when the nozzle rod protrudes, that is, when the water pressure in the water pressure cylinder is low, hot water is removed from the hot water storage cylinder provided in the bypass waterway. When hot water is supplied to the hydraulic cylinder and the nozzle rod has finished protruding, the water pressure inside the hydraulic cylinder becomes high and the amount of water supplied from the water supply means decreases, hot water can be supplied via the instantaneous water heater, so the water pressure is always high. Cleaning water at an appropriate temperature can be supplied into the cylinder, and the cleaning water at an appropriate temperature can be jetted from the moment the jetting starts.

According to the hot water cleaning device according to claim (2), in addition to the above effects, the flow rate of the constant flow valve provided upstream of the hot water storage cylinder is set to be larger than the flow rate of the constant flow valve provided upstream of the instantaneous water heater. To supply hot water kept warm in the hot water storage cylinder to the hydraulic cylinder at the start of nozzle loft protrusion by a simple mechanism of supplying more water from the water supply means to the hot water storage cylinder and pushing out the hot water stored in the hot water storage cylinder. It produces the effect that can be achieved.

According to the hot water cleaning device according to claim (3), claim (1)
In addition to the effect of 1, since it has a return spring that urges the watertight sliding piston fitted inside the hot water storage cylinder toward the upstream side, when the water pressure on the upstream side is greater than the urging force of the return spring, The heated water stored in the hot water storage cylinder is pushed out to the downstream side of the bypass waterway, and when the water pressure on the upstream side becomes smaller than the biasing force of the return spring, hot water on the downstream side of the bypass waterway can be made to flow into the hot water storage cylinder. Therefore, it is possible to easily take hot water into and out of the hot water storage cylinder using a simple mechanism.

[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- Instant water heater, 3-・Hot water inlet,
4--Hydraulic cylinder, 5--Nozzle loft, 6-
・Bypass waterway, 7-・-hot water storage cylinder, 1a-・piston, 7b・-return spring, 7c, 7cL-=
Inflow port, 8.9 constant flow valve, 10-.- magnetic valve, 11-.
- Water pressure control valve, 12 - pump, 13 - strainer, 14 - piston] 5 - through hole, 16 - spout, 18 - packing 19 - return spring, 2o - check valve, 21 − Relief valve.

Claims (3)

[Claims] (1) An instantaneous hot water heater is arranged in the main waterway, and downstream thereof, a hydraulic cylinder with a hot water supply port arranged at the rear end, and a nozzle rod that is fitted inside the hydraulic cylinder and projects when hot water is supplied from the hot water supply port. In a hot water cleaning device equipped with a hot water cleaning device, a bypass channel is provided in the main channel to bypass the instantaneous water heater, a hot water storage cylinder having an inlet on the upstream and downstream sides of the bypass channel is provided, and a piston that slides in a watertight manner is installed in the hot water storage cylinder. A hot water cleaning device characterized in that it is fitted inside and can freely supply hot water from a hot water storage cylinder to a hydraulic cylinder for a certain period of time. (2) A hot water cleaning device characterized in that dedicated constant flow valves are provided upstream of the instantaneous water heater and the hot water storage cylinder according to claim (1), respectively. (3) A hot water cleaning device characterized in that the hot water storage cylinder according to claim (1) is provided with a return spring that urges the piston fitted therein toward the upstream side.