JPS6123246Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water heater for a bath that can use a hot water shower or hot water using a bath pot.

At present, a simple shower for a bath is shown in Utility Model Application Publication No. 55-48009, in which a coiled pipe is installed inside the bathtub, one end of which is connected to the water supply, and the other end is connected to the shower head. Common.

However, with such a normal shower water heating device, when there is no water in the bathtub and you want to use only the hot water shower, the bathtub is also heated, which is dangerous.

Therefore, in this invention, a small hole is provided in the heat receiving tube for heat exchange inside the bathtub, which is connected to the water pipe at one end and the shower at the other end, and a stopper that closes the heating path communicating with the water inlet of the bathtub is installed at the water inlet. To provide a water heater for a bath, which does not run dry even when there is no water in the bathtub and allows only a hot water shower to be used, by being installed in the bathtub.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In the bath water heater 1 shown in the drawing, 2 is a bath pot, which is connected to the caps 5, 5' of a pair of upper and lower water inlets 4, 4' provided on the side of the bathtub 3 via pipes 6, 6'. The heating path 7 has a heating path 7.

Reference numeral 8 denotes a metal heat exchanger heat receiving tube, which is inserted into the heating path 7 in the bath pot 2, bent spirally, and placed in a long state in the heating path 7 to increase the heat receiving area. ing.

A small hole 9 is provided in the middle of the heat exchanger heat receiving tube 8.

Further, both ends 10 and 11 of the heat exchange heat receiving tube 8 are located at the upper water inlet 4 through the inside of the upper pipe 6, and are connected to the preliminary passages 12 and 13 of the base 5 of the water inlet 4, respectively.

Then, one reserve passage 12 is connected to a water pipe faucet 15 via a hose 14, and the other reserve passage 1
3 is connected to a hose 17 of a shower 16.

18 and 19 are the caps 5 of the upper and lower water ports 4 and 4';
5' is a blind stopper for closing the cap 5,
It is constructed so that it can be screwed onto the outer periphery of 5'.

The upper blind plug 18 is provided with a hole 20 for venting air.

21 is a burner, which is installed at the bottom of the bathtub 2.

The operation of the bath water heater configured as described above will be explained.

First, when using the shower 16 after filling the bathtub 3 with water and boiling the bath using the burner 21, turn off the faucet 1 with the burner 21 attached.
If water is supplied into the heat exchange heat receiving tube 8 from 5, the water absorbs the heat of the hot water in the heating path 7 of the bath pot 2 while passing through the heat receiving tube 8, and becomes hot water, and the shower 16 supplied to

At this time, some water leaks into the bathtub 2 from the small hole 9 of the heat exchanger heat receiving tube 8, so even if the hot water level in the bathtub 3 is below the upper water inlet 4, it will not become empty. .

Shower 16 when there is no water in bathtub 3
When using a blind stopper 1 as shown in the imaginary line.
If the upper and lower water ports 4 and 4' are closed at 8 and 19 and water is supplied from the faucet 15 into the heat exchanger heat receiving tube 8, water leaking from the water hole 9 in the heating path 7 of the bath pot 2 will accumulate. The water in the heat exchange heat receiving tube 8 is heated and supplied to the shower 16 while the bathtub 2 is not empty.

As shown in the above embodiments, the bath water heater of the present invention has a small hole in the heat exchange heat receiving tube in the bathtub, which is connected to a water pipe at one end and a shower at the other end, A plug is installed at the water inlet to close the communicating heating path, so when there is no water in the bathtub and you only want to use the hot water shower, you can close the water port with the plug and empty the bathtub. You can use a hot shower without having to do it.

Moreover, the capacity of the bathtub separated from the bathtub is small, and hot water heated to the desired temperature can be obtained in a short time.

In addition, the hot water supply has the advantage of not only being able to raise the humidity higher than the water in the bathtub, but also being sanitary because dirty hot water does not enter the bathtub.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall view, FIG. 2 is a sectional view of a main part, and FIG. 3 is a partially enlarged sectional view of FIG. 2. 2... Bath pot, 3... Bathtub, 4, 4'... Water inlet, 7... Heating path, 8... Heat receiving tube for heat exchange.

Claims (1)

[Scope of utility model registration request] The heating path of the bathtub is connected via a pipe to the caps of a pair of upper and lower water inlets provided on the side of the bathtub, and a spirally bent heat receiving tube for heat exchange is inserted into this heating path. A small hole is provided in the middle of the heat receiving tube for heat exchange, and both ends of the heat receiving tube for heat exchange are guided above the bathtub through the upper pipe and the base, one end is connected to the water pipe, and the other end is connected to the shower. A water heater for a bath, the base of which is provided with a stopper that closes the heating path.