JPS6152899B2 - - Google Patents

Description

[Detailed Description of the Invention] In the outer pot type bathtub, contaminated hot water flows into the outer pot and circulates, so not only does the inner surface of the pot become dirty and the heat transfer efficiency may be reduced, but also the bathtub has the problem that it is difficult to obtain clear hot water at an appropriate temperature or shower. The disadvantage was that it was not possible to use

The present invention improves the performance of an outer pot type bathtub and makes it possible to obtain clear hot water or a shower device at an appropriate temperature.

FIGS. 1 and 2 illustrate a device equipped with the device of the present invention.

1 is a filter box attached to the lower communication hole,
2 is a check valve, and 3 is a filter bag. The filter bag can be replaced or cleaned by removing the clamp 4 and removing the top of the box.

5 is a lower communication pipe, 6 is an outer pot, 7 is an upper communication pipe,
8 is a valve box connected to the upper communication pipe. Reference numeral 9 denotes a valve, which is attached by a stop shaft 10 and is inserted into the hole a of the valve box.
If you match hole b corresponding to , the valve will be fully open, but
The valve is designed to be fully closed when the handle 9 is rotated by the grip 11.

The upper and lower communication pipes and the filter box/valve box are connected by a rubber gasket 17, an adjustment nut 18, and a tightening handle 19, as shown in FIG. That is, by moving the packing tightening handle 19 guided by the threaded surface toward the rubber, the outer diameter of the rubber is expanded, so that a tight and strong connection can be made to the inner surface of the tube.
If the size of the communication pipe does not match, use the adjustment nut 18.
This can be solved by moving the left and right sides.

When you are boiling a bath, hole A and valve hole B are aligned, so the water heated in the pot will flow out into the bathtub.
When the water tap 21 is opened to take hot water, the tap water passes through a pipe 22, passes through a throttle valve 23 attached to a bifurcated pipe that can change the distribution ratio, and the water is divided into two parts, one of which passes through a pipe 24 and sinks to the bottom of the bathtub. Water storage tank 25
The water passes through the pipe 26, returns to the filter box 1, mixes with the water that directly entered through the pipe 22, passes through the lower communication pipe 5 to the outer pot 6, is heated, and passes through the lower communication pipe 7 to the valve box. Go to 8.

The temperature of the water in the water storage tank placed at the bottom of the bathtub increases due to heat transfer from the hot water in the bathtub, both when the bath is boiled and during the (relatively long) time a person is taking a bath. However, the new water injected through tube 22 is cold. If the new water is heated only by the fire in the outer pot, the temperature will be too low to be used as hot water or as a shower, but if the water is heated by mixing it with preheated water in the water storage tank, the temperature will be too low. In this case, hot water at an appropriate temperature can be obtained by adjusting the throttle valve 23 attached to the bifurcated pipe.

The quality of the adjustment can be determined by manually checking the temperature of the hot water entering the bathtub with the valve 9 open, closing the throttle valve, and opening the valve 15 that communicates with the flushing hot water collar 14 or the shower nozzle 16. Can be used at will.

When the device of the present invention is installed, as long as the valve 9 is open, it has the same function as a conventional outer pot type bathtub, and the bathtub can be boiled.

In other words, the hot water in the bathtub pushes open the check valve and flows into the filter box by the suction force caused by the temperature rise of the hot water in the outer pot, and is constantly filtered by the filter bag, so dirt from the bather is constantly removed. You can always enjoy a clean bath without being excluded.

This is the first effect that cannot be obtained with conventional baths.

Generally, in the case of an external pot type bath, there is a risk of burning out the pot by burning an empty pot, and many inventions have been devised to prevent this. Even when the fire is started, the check valve automatically closes and the pot is immediately filled with water, so the hot water heated in the pot is supplied to the bathtub from the hole in the valve box and sequentially flows through the bathtub without burning out the pot. Because it satisfies
The danger of dry firing is automatically eliminated.

This is the second effect of the present invention.

When the bath is boiling and a person takes a bath, the water in the water storage tank submerged at the bottom is at an appropriate temperature of around 45 degrees, but new water is at a temperature of 15 degrees or less in winter, and the water volume is reduced in the pot. Even if you limit the temperature to rise by 10 degrees, the hot water will still be below 25 degrees, making it unsuitable for hot spring baths or showers. However, if you mix about twice as much hot water from the storage tank as fresh water, the temperature will reach around 45 degrees, allowing you to take a comfortable shower.

This is the third effect of the present invention.

Although many inventions and ideas have been made in the past that use bathtubs with complicated structures and complicated control devices, there seems to be no invention that can achieve the above-mentioned three effects at once.

The present invention is characterized by the fact that a large effect can be obtained by simply attaching a simple device to a conventional outer pot type bathtub without requiring a specially constructed bath pot, piping, or adjustment device. .

Although the filter box and valve box of the present invention are small and can be made small enough not to interfere with bathers, the water storage tank is relatively large.
However, if this water storage tank is placed in a part of the bottom of the bathtub, the tank can be used as a step stool or a seat, and the function of the bathtub will not be affected.

[Brief explanation of the drawing]

FIGS. 1 and 2 are drawings showing a situation in which the device of the present invention is attached to a conventional outer pot type bathtub. FIG. 3 illustrates the valve box attached to the upper communication pipe and the method of attaching it. 1: Filter box, 2: Check valve, 3: Filter bag, 4: Clamp, 5: Lower communicating pipe, 6: Outer pot, 7: Upper communicating pipe, 8: Valve box, 9: Opening/closing valve, 14: Rising hot water 15: Shower valve, 16: Shower nozzle, 17: Rubber packing, 19: Butt tightening handle wheel, 20: Bathtub, 21: Water supply bell, 23: Throttle valve attached to bifurcated pipe, 25: Water storage tank.

Claims (1)

[Claims] 1. A filter box with a check valve is firmly attached to the lower communication hole of the outer pot type bathtub, and a valve box is firmly attached to the upper communication hole to prevent water leakage. When the bathtub is heated, the hot water flowing in through the check valve is After the water is filtered, it is heated by the outer pot and returned to the bathtub through the open hole in the valve box, thereby maintaining the temperature of the bathtub.On the other hand, the water pipe that supplies new water is connected to a bifurcated pipe. Divide into two parts, lead one into the filter box and the other into a water storage tank submerged in a bathtub, and mix with water that has been warmed in advance by hot water from the bathtub in the water storage tank. The hot water that is heated in the outer pot through the lower communication pipe is returned to the valve box from the upper communication pipe and discharged into the bathtub, and the amount of clean water and the ratio of the amount to the water preheated in the water storage tank are determined. The temperature is controlled by the throttle valve attached to the bifurcated pipe, and when the temperature has stabilized appropriately, the valve of the valve box that communicates the outer pot and the bathtub is closed, and the hot water is taken from the branch pipe of the valve box and the hot water is boiled or heated. A hot water or shower device that allows you to use the shower by opening the shower valve.