JPH045350A - Hot water washing device - Google Patents

Abstract

PURPOSE:To supplement the heating ability of an instantaneous water boiler by accumulating hot water, heated and supplied from a water circulation hole provided in a water flow pipe of the water boiler, in a hot water storage tank and sucking the hot water by an ejector to be mixed in in-flow water to the hot water supplier. CONSTITUTION:A hot water washing device is constituted by providing a cylinder 3 and a nozzle rod 4 in the downstream side of an instantaneous water boiler 1 in which a ceramics heater 1a is built in a water flow pipe 1b. A water storage tank 6, in which water is supplied from a water circulation hole 1c provided in the water flow pipe 1b and further the supplied water is heated through a pipe wall of the water flow pipe 1b, is provided, while an ejector 7 is provided in the upstream side of the instantaneous hot water supplier 1, in this device. Next, the hot water tank 6 is connected to the ejector 7 by a suction pipe 8. When water is supplied to the instantaneous water boiler 1, its heating ability is supplemented by utilizing a suction effect-acting on the ejector 7, to mix hot water in the hot water tank 6 in in-flow water.

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., those shown in FIGS. 3 and 4 have been known.

Konomo's has an instantaneous water heater L and a hot water outlet 2 on the downstream side.
A pump, which is a water supply means, is provided on the upstream side of the instantaneous water heater 1. 9 and a strainer 10 are provided. Further, a check valve 16 is provided between the pump 9 and the strainer 10.

FIG. 4 shows the cylinder 3 and the nozzle rod 4 fitted therein.

The nozzle rod 4 has a piston 5 at the rear end through which water can freely flow,
A through hole 4a is provided inside, and a spout 4c is provided at the tip thereof. Further, the piston 5 is provided with a packing 11 and a return spring 12, and the return spring 12 always urges the piston 5 toward the hot water supply port 2 side, so that the nozzle rod 4 is housed in the cylinder 3.

The operation of this item is to operate the pump 9 and strainer 1.
The water that has passed through the water heater 1 becomes cleaning water at a predetermined temperature in the instant water heater 1, and is supplied to the hot water supply port 2. The nozzle rod 4 protrudes from the cylinder 3 due to the water pressure, and cleaning water is spouted from the spout 4c. .

[Problems to be Solved by the Invention] The cleaning nozzle drive device of the prior art described above has a structure in which the piston 5 is pressed using cleaning water jetted from the spout 4c to drive the nozzle rod 4. The water pressure inside the cylinder 3 when the nozzle rod 4 is protruding is considerably lower than the water pressure when the nozzle rod 4 is protruding. The amount of water passing through the instant water heater 1 is
The amount exceeds the heating capacity, and as a result, the cleaning water that is first jetted out from the spout 16 after the nozzle rod 4 has finished protruding has a low temperature.

The hot water 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 make the water temperature suitable for the human body starting from the first jet of cleaning water from the spout. The purpose of the present invention is to provide a hot water cleaning device.

[Means to solve the problem]

The hot water cleaning device of the present invention includes a cylinder on the downstream side of an instantaneous hot water heater that has a ceramic heater built in a water conduit and has a hot water supply port at the rear end, and a cylinder that is fitted inside the cylinder and has a hot water supply port. A hot water cleaning device equipped with a nozzle rod that protrudes from the hot water supply, a hot water storage tank that is supplied with water from a water hole provided in the water conduit and heated through the pipe wall,
An ejector is provided on the upstream side of the instantaneous water heater, and
This device is characterized in that the hot water storage tank and the ejector are connected through a suction pipe.

[Function] The nozzle cleaning device of the present invention includes a hot water storage tank that receives water supply and heating from a water conduit of an instantaneous water heater, and an ejector on the upstream side of the instantaneous water heater. are connected by a suction pipe, so when water is supplied to the instantaneous water heater, a suction effect works on the ejector, and the water heated in the hot water storage tank is mixed with the water flowing into the instantaneous water heater. Compensates for the lack of heating capacity of instantaneous water heaters.

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

This embodiment is an example of application to a hot water bidet toilet seat, and as shown in FIG. A cylinder 3 is provided with a hot water supply port 2, and a nozzle rod 4 is fitted into the cylinder 3 and projects when hot water is supplied from the hot water supply port 2. An ejector 7 is provided on the upstream side of the instantaneous water heater 1.
A hot water storage tank 6 and an ejector 7 are connected by a suction pipe 8.

On the upstream side of the instantaneous water heater 1, there is a pump 9 as a water supply means.
and a strainer 10 are arranged.

The water conduit 1b of the instant water heater 1 covers the ceramic heater 1a and has a double pipe structure so that the supplied water passes through the inside of the tubular ceramic heater 1a and then passes through the outside of the tubular ceramic heater 1a again to be heated. In addition, a water passage hole 1c is provided in the tube wall so that a portion of the heated water can pass through and leak out of the tube.

A check valve 16 is provided between the pump 9 and the strainer 10.

The hot water storage tank 6 is supplied with water through a water hole 1c provided in the pipe wall of the water pipe 1b of the instantaneous hot water heater 1, and is provided so as to encompass the water pipe 1b so that the supplied water is heated through the pipe wall. ing.

As shown in FIG. 2, the cylinder 3 is made of a cylindrical object with a bottom, and has a hot water supply port 2 near one end thereof, and a nozzle rod 4 fitted therein has a through hole 4a inside. A cleaning nozzle 4b is disposed so as to seal the tip thereof, and a small-diameter spout 4 is provided in the cleaning nozzle 4b in a direction perpendicular to the through hole 4a.
c is provided.

Further, the piston 5, which is made of a disc-shaped object and has a water inlet in the center thereof, is connected to the rear end of the nozzle loft 4 so that the water inlet is integrated with the end of the through hole 4a, A continuous groove is provided in the surface, and a gasket 11 is disposed in the groove, and is slidably held on the inner surface of the cylinder 3 via the gasket 11, and a biasing force against the flow direction of the hot water is applied. A return spring 12 is provided for activation.

In this embodiment, when the nozzle rod 4 is projected, a water-saving shaft 13 in the form of a thin rod is slidably inserted into the through hole 4a of the nozzle rod 4, and one end thereof is connected to the cylinder. 3, into which a water-saving faucet 14 in the form of a small circular disk with a hole is slidably inserted, and is arranged so as to abut the rear end of the through hole 4a, and A locking piece 15 is provided at the tip of the water-saving shaft 13 so that the water-saving faucet 14 is locked at a predetermined distance from one end of the through hole 4a when the fourth nozzle rod protrudes.

The operation of this device is to operate the pump 9 and strainer 1.
The water that has passed through 0 is supplied to the hot water supply port 2 as cleaning water at a predetermined temperature by the instant water heater 1, and the piston 5 is pressed against the biasing force of the return spring 12 by the water pressure. , the nozzle rod 4 protrudes from the cylinder 3.

The water pressure inside the cylinder 3 when the nozzle rod 4 is protruding is such that when the nozzle rod 4 has finished protruding, the cleaning water flows to the spout 4c.
The amount of water passing through the instantaneous hot water heater 1 is considerably lower than when it is spouting water, and therefore the amount of water passing through the instantaneous water heater 1 exceeds its heating capacity.

However, as a result of the flow rate passing through the ejector 7 increasing, a large suction effect acts on the ejector 7, and the heated water in the hot water storage tank 6 is mixed into the water supplied to the instantaneous water heater 1 through the suction pipe 8. As a result, the lack of heating capacity of the vessel 1 is compensated for, and cleaning water at an appropriate temperature is supplied into the cylinder 3.

In addition, when the heated water in the hot water storage tank 6 is sucked into the instant water heater 1,
Water is supplied to the hot water storage tank 6 from the water passage hole 1c provided in the water passage conduit 1b.

In this embodiment, as described above, the gasket 11 is disposed on the outer peripheral surface of the piston 5 to prevent water from leaking from the contact portion with the inner wall surface of the cylinder 3. This has the effect of increasing the water pressure inside the cylinder 3 and suppressing the amount of water passing through the instantaneous water heater 1.

Furthermore, when the nozzle rod 4 protrudes, the water-saving valve 14 moves so as to close one end of the through hole 4a, and water leakage from the spout 4c is suppressed to a small amount, so that the above-mentioned gasket 11
In addition to the water leak prevention effect, it also has the effect of suppressing the amount of water passing through the instantaneous water heater 1 and not reducing the protrusion speed of the nozzle rod 4 even if the amount of hot water supplied to the cylinder 3 is suppressed. .

When the nozzle rod 4 has finished protruding, the water-saving faucet 14 is locked at a predetermined distance from one end of the through-hole 4a by the locking part 15 disposed at the tip of the water-saving shaft 13. 4a is opened, and the supplied cleaning water is spouted out from the spout 4c. After the nozzle rod 4 has finished protruding, the pressure inside the cylinder 3 increases and the amount of water passing through the instantaneous water heater 1 tends to be suppressed, but the heating capacity of the instantaneous water heater 1 continues to be insufficient. Heated water from the hot water tank 6 is mixed in to compensate for this.

In this way, cleaning water at an appropriate temperature for the human body is supplied to the cylinder 3 from the initial point in time when the cleaning water is spouted.

〔Effect of the invention〕

According to the hot water cleaning device of the present invention, a hot water storage tank that receives heat from a water conduit of an instantaneous water heater and an ejector are provided on the upstream side of the instantaneous water heater, and the hot water storage tank and the ejector are connected by a suction pipe. This structure compensates for the lack of heating capacity of the instantaneous water heater by connecting the heated water from the hot water tank to the water flowing into the instantaneous water heater through the ejector's suction effect when supplying water to the water heater. Therefore, the water has the effect of providing cleansing water at an appropriate temperature for the human body from the beginning of the ejection.

[Brief explanation of drawings]

FIG. 1 is a schematic piping diagram of an embodiment of the present invention, and FIG. 2 is a
FIG. 3 is a schematic piping diagram of a conventional example, and FIG. 4 is a sectional view of the nozzle portion. 1- Instant water heater, 1a--Ceramic heater-1b--One-way water conduit, lc-・Water hole, 2-・°・
Hot water supply port, 3- cylinder, 4-...nozzle rod,
5...Piston, 6...-Hot water tank, 7...-Ejector, 8--Suction pipe, 9-Pump, 10-Strainer, 11--Packing, l2--Return spring, 3・− Water saving shaft, water saving faucet, locking part, 6−・− Check valve.

Claims (1)

[Claims] (1) On the downstream side of an instantaneous water heater that has a ceramic heater built into the water conduit, there is a cylinder with a hot water supply port at the rear end, and a nozzle that is fitted inside the cylinder and projects when hot water is supplied from the hot water supply port. In the hot water cleaning device, the hot water cleaning device is provided with a hot water storage tank that is supplied with water from a water hole provided in the water flow conduit and heated through the pipe wall of the water flow conduit, and is provided on the upstream side of the instantaneous water heater. A hot water cleaning device characterized by being provided with an ejector and connecting a hot water tank and the ejector with a suction pipe.