JPH0519418Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a water heater used for washing after defecation, for example.

[Conventional technology]

Hot water for cleaning is supplied from a water pipe to a tank, heated to a set temperature by a heater built into the tank, and then supplied.

[Problem that the invention attempts to solve]

When hot water is supplied, water is supplied to the tank from the water pipe at the same time as the supply starts, so water gets mixed into the hot water and the temperature drops.

For this reason, there was a problem in that large temperature variations occurred from the start to the end of supply.

In particular, there was a problem with the product feeling hot during initial supply.

[Means for solving problems]

In order to solve the above problems, this invention includes a tubular tank, a first water supply pipe connected to one end of the tank, a second water supply pipe whose end is located within the other end of the tank, and a tank. A heater built into the tank to heat the water in the tank to a set temperature, a box provided at the other end of the tank, and a tip located near the end of the second water supply pipe, with the end protruding into the box. A temperature inflow pipe with a hot water temperature inflow pipe, a discharge pipe whose tip faces the end of the hot water inflow pipe with a predetermined interval, and a discharge pipe which penetrates the peripheral wall of the box and protrudes outward, and A sensor located near the end of the second water supply pipe to activate the heater, and a stop valve located in the middle of the second water supply pipe located outside the tank to supply an appropriate amount of water and then stop the water supply. It is composed of

[Effect]

Water flows into the tank from the first water supply pipe, and when the tank is completely filled, water supply from the first water supply pipe is stopped.

Further, the water in the tank is heated to a set temperature by a heater (temperature management is performed by a sensor).

When the discharge pipe is unblocked (the valve is opened by operating a button, etc., and hot water is injected from the nozzle at the end of the discharge pipe), the hot water in the tank flows from the outflow pipe through the box and toward the discharge pipe. Water supply is started from the first water supply pipe and the second water supply pipe.

At this time, the water supply from the second water supply pipe is immediately stopped by closing the stop valve due to water pressure.
A small amount of water exits the end of the second water supply pipe and warms up with the warm water in the other end of the tank, reducing its temperature.

As a result, hot water lower than the set temperature flows into the box from the inflow pipe, mixes with the low temperature water remaining in the box, further lowers the temperature, and is supplied from the discharge pipe.

After that, hot water at the set temperature is supplied.

〔Example〕

In the figure, 1 is a tubular tank with both ends closed. A first water supply pipe 2 is connected to the end of the tank 1, and a second water supply pipe 3 is connected to the other end of the tank 1. The end of is located.

The first water supply pipe 2 and the second water supply pipe 3 described above are branched from a water supply pipe 4 connected to a water pipe.

Furthermore, a heater 5 is incorporated in the tank 1 to raise the temperature of the water in the tank 1 to a predetermined temperature.

Further, a box 6 is provided at the other end of the tank 1, and a second water supply pipe 3 is provided in the box 6.
The tip of the inlet tube 7 is located near the end of the inlet tube.

The box 6 is also provided with a discharge pipe 8 whose tip is positioned at a predetermined distance from the end of the inflow pipe 7.

A cleaning nozzle is connected to the end of the discharge pipe 8, and the tip of the discharge pipe 8 is attached to the box 6 with a double nut 9 as shown in FIG. , the distance between the opposing ends of the discharge pipe 8 and the inflow pipe 7 can be freely adjusted.

Furthermore, near the tip of the inflow pipe 7 in the other end of the tank 1, a heater 5 is installed to maintain the set temperature as the temperature drops.
A sensor 10 is provided that acts on the sensor.

In addition, after supplying an appropriate amount of water to the middle of the second water supply pipe 3 with the start of supply from the discharge pipe 8,
A stop valve 11 is provided to stop the supply.

In the illustrated case, the above-mentioned stop valve 11 is composed of a hollow body 12 and a metal ball 13 built into the hollow body 12, and the ball is brought into pressure contact with the inlet of the hollow body 12 by the water pressure accompanying water supply. It is designed to stop water.

Note that although the box 6 is provided outside the tank 1 in the illustrated case, it may be provided at the bottom of the tank 1 or the like.

In the figure, 14 is a filter.

〔effect〕

As described above, according to the water heater according to this invention, water is supplied from the first and second supply pipes as water is discharged from the discharge pipe, and after an appropriate amount of water is supplied, the stop valve is activated to supply water from the second supply pipe. Since the water supply is stopped, a small amount of water is supplied into the other end of the tank to slightly lower the temperature of the hot water at the other end of the tank, and the lowered hot water flows into the box from the inlet pipe and is then heated inside the box. This will further lower the temperature by mixing with the remaining water.

For this reason, the hot water injected from the nozzle of the discharge pipe is lower than the set temperature at the initial injection, then hot water at the set temperature is injected, and hot water higher than the set temperature flows out due to preheating after the heater stops operating. blocked.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional front view of the water heater according to this invention.
FIG. 2 is a cross-sectional plan view of the same, and FIG. 3 is an enlarged partially cutaway front view of the box. 1...Tank, 2...1st water supply pipe, 3...3rd
Water supply pipe, 4... Water supply pipe, 5... Heater, 6...
Box, 7...Inflow pipe, 8...Discharge pipe, 9...
Double nut, 10...sensor, 11...stop valve.

Claims (1)

[Scope of utility model registration request] A thin tubular tank, a first water supply pipe connected to one end of the tank, a second water supply pipe whose end is located within the other end of the tank, and the tank configured to heat water in the tank to a set temperature. a heater built into the tank, a box provided at the other end of the tank, a hot water inflow pipe whose tip is located near the end of the second water supply pipe and whose end protrudes into the box, and the end of this hot water inflow pipe. A discharge pipe whose tip faces out at a predetermined distance from the tank and which protrudes outward through the peripheral wall of the box, and a heater located near the end of the second water supply pipe within the other end of the tank. This water heater consists of a sensor installed to allow the water to flow, and a stop valve installed to supply an appropriate amount of water to the middle of a second water supply pipe located outside the tank and then stop the water supply.