JPH0380009B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a domestic hot water storage type water heater equipped with a hot water storage tank with a heater.

Conventional structure and its problems In general, home hot water storage type water heaters are used for Japanese tea, black tea, etc.
In order to supply hot water for making coffee, etc., a space is created below the hot water storage tank, a container such as a cup is placed in this space, and hot water is supplied into the container from above.

In order to supply hot water as described above, a hot water supply pipe is led out from the bottom of the hot water storage tank, but when the hot water is used up, there is a risk that the hot water storage tank will become empty due to the heater.

For this reason, some hot water supply pipes have the upper end of the hot water supply pipe located slightly above the inner bottom of the hot water storage tank, so that a certain amount of hot water is always stored in the hot water storage tank. However, with this configuration, a means for draining a certain amount of the stored hot water must be attached, and a drain pipe and a drain valve must be provided in addition to the hot water supply pipe and the hot water supply valve. There was a problem that the number of constituent members increased and the cost increased.

OBJECTS OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to make it possible to drain hot water stored at the inner bottom of a hot water storage tank for safety purposes without using a drain pipe or a drain valve.

Structure of the Invention In order to achieve the above-mentioned object, the present invention has a hot water storage tank equipped with a heater with a spout projecting from the inner bottom that communicates with the supply part, and the spout is configured to be able to be pushed down freely, so that the temperature remains constant at all times. The remaining water level is stored to prevent dry cooking, and when changing water or cleaning, the spout can be pushed down to drain the remaining water.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings.

In the figure, 1 is a main body, which is attached to a pedestal 3 so as to form a space 2 at the bottom. A hot water storage tank 4 is provided in the main body 1, and a heater 5 is provided at the outer bottom of the hot water storage tank 4.
It is designed to heat the water inside to boil it.

A cylindrical member 6 projecting downward is provided at the bottom of the hot water storage tank 4, and a spout 7 is fitted into the cylindrical member 6 so as to be vertically slidable. The spout 7 is urged upward by a spring 8 provided within the cylindrical member 6, and its upper end protrudes above the inner bottom of the hot water storage tank 4 by a certain height. A hot water supply pipe 10 is connected to the lower part of the cylindrical member 6 via a joint 9, and the hot water supply pipe 10 is connected to a hot water supply port member 12 via a hot water supply valve 11. The spout 7 has a stopper 13 to prevent it from slipping out upward, and the spring 8 is supported at its lower part by a joint 9. 14,1 in the diagram
5 is a sealing member, 16 is a power switch, and 17 is a temperature control knob.

The hot water storage type water heater configured as described above boils water in the hot water storage tank 4 with the heater 5, stores the hot water, and supplies hot water via the spout 7, the cylindrical member 6, the hot water supply pipe 10, and the hot water supply port member 12. When the hot water supply valve 11 is opened and the hot water is used up, the water level in the hot water storage tank 4 is maintained at the height of the upward protrusion of the spout 7, that is, safety hot water is left, and the hot water is used up. is prevented.

Next, when draining water, the spout 7 is pushed down against the spring 8, and the upper end of the spout 7 is placed in the same position as the inner bottom of the hot water storage tank 4, so that all the remaining safety hot water is discharged. be done. Therefore, the remaining hot water can be discharged without providing a special drain pipe or a drain valve, and the structure is simple.

Effects of the Invention As is clear from the description of the above embodiments, the storage type water heater of the present invention can drain residual water using the hot water supply pipe system, and does not require the use of any other special drain pipe or drain valve. Since it has a structure in which the spout of the water supply system slides up and down, it is easy to configure and has great effects.

[Brief explanation of drawings]

FIG. 1 is a sectional side view of a hot water storage type water heater according to an embodiment of the present invention, and FIG. 2 is a sectional view of the main parts thereof. DESCRIPTION OF SYMBOLS 1... Main body, 4... Hot water storage tank, 5... Heater, 6... Cylindrical member, 7... Mouth pipe, 8... Spring, 10... Hot water supply pipe, 11... Hot water supply valve,
12... Hot water supply port member.

Claims (1)

[Claims] 1. A cylindrical member communicating with a hot water pipe is provided at the bottom of a hot water storage tank equipped with a heater, and a spout is provided that fits into the cylindrical member and projects above the inner bottom of the hot water storage tank, so that the spout can be freely pushed down. A hot water storage type water heater consisting of.