JPS59148Y2 - Bathtub side overflow water collection device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bathtub overflow water recovery device for recovering hot water overflowing from a bathtub or a storage tank in a domestic bathtub, a public bathtub, or a hot water facility.

Conventionally, in domestic bathtubs or public bathtubs, when a large number of people take a bath at the same time, or when hot water is stored up to the top of the bathtub, the hot water overflows from the bathtub and the bathers get out. It ran low and had to be replenished.

Also, from the point of view of energy conservation, valuable hot water was wasted, which was undesirable.

In view of the above points, the present invention provides a hot water storage tank around the outside of the bathtub body, provides a hot water inlet/outlet communicating with the hot water storage tank above the bathtub body, and collects hot water in the hot water storage tank through the hot water inlet/outlet using air pressure. To provide a bathtub side overflow water recovery device capable of reducing reinforcement of new hot water and at the same time preventing temperature drop due to heat radiation of hot water.

The present invention will be described below with reference to embodiments shown in the drawings.

In Figures 1 and 2, 1 is the bathtub body, 2 is a hot water inlet/outlet provided on the inner wall of the bathtub body 1 at a position that determines the tank water level, and 3 is the outer periphery of the bathtub body 1 for accommodating hot water 3'. 4 is a hand-push air pump that supplies air pressure to return the hot water 3' in the hot-water storage tank 3 from the hot-water inlet/outlet 2 into the bathtub 1; 5 is a hand-push air pump 4 and the hot water storage tank; An air pressure supply pipe 6 provided between the hot water tank 3 and the air pressure supply pipe 6 is provided in the hot water storage tank 3 opposite the hot water inlet/outlet 2 in order to connect the air pressure supply pipe 5, and a hot water generator 7 is connected to the bathtub to supply hot water. 8 are double drain plugs provided at the bottom of the bathtub body 1 and the hot water storage tank, and 9 is a reinforcing plate at the bottom of the bathtub body 1.

The movement of hot water when the bathtub having the above structure is actually used will be explained with reference to FIGS. 3a and 3.

In FIG. 3a, the hot water in the bathtub body 1 is initially indicated by the dotted line 10.
It is stored up to the water level of

When a large number of people take a bath at the same time, hot water 3' flows from the hot water inlet/outlet 2 into the hot water storage tank 3 as shown by the arrow and is stored therein.

When the bather leaves, the hot water in the bathtub body 1 decreases to the water level indicated by the dotted line 11, as shown in Figure 3, and the hot water 3' remains in the hot water storage tank 3. .

Therefore, in order to return the hot water 3' from the hot water inlet/outlet to the bathtub body 1 as shown by the arrow, air pressure is supplied by the hand air pump 4, and air pressure is applied from the air inlet on the opposite side to the hot water inlet/outlet 2.

Thereby, the water level in the bathtub body can be returned to the position indicated by the solid line 12.

Therefore, overflow water can be collected up to a level close to the initial water level, reducing the need to replenish new hot water.

In addition, in the above embodiment, a hand-pneumatic pump was used for recovering hot water, but an electric pump may be used to facilitate the operation.

In the present invention as described above, a hot water storage tank is provided in a jacket type around the outside of the bathtub body, and a hot water inlet/outlet is provided in communication with the hot water storage tank at a position that determines the water level in the bathtub body, so that overflow water can be removed by air pressure. Since it can be recovered, overflow water can be used to replenish hot water in the bathtub, reducing the need to replenish new hot water and at the same time preventing a drop in temperature due to heat radiation from the hot water.

In addition, even if the amount of hot water collected every day is small, if the hot water from many bathtubs is collected per year, the energy saving effect will be significant, so the contribution of energy saving can be highly evaluated. effective.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the bathtub body of the present invention; Fig. 2 is a cross-sectional view taken along line I-I of Fig. 1; Fig. 3a is a plan view of the bathtub body of the present invention;
A sectional view taken along line II; FIG. 3 is a sectional view of the bathtub for explaining the hot water recovery state. 1...Bathtub body, 2...Hot water entrance,
3...Hot water storage tank, 4...Hand air pump.

Claims (1)

[Scope of utility model registration request] A hot water storage tank is provided in a jacket type around the outside of the bathtub body, and a hot water inlet/outlet communicating with the hot water storage tank is provided above the bathtub body, so that the hot water in the hot water storage tank can be recovered through the hot water inlet/outlet by air pressure. A bathtub side overflow water collection device that is characterized by: