JPS624845Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bath heating device that uses water vapor pressure to forcefully circulate and heat the bath water, thereby achieving uniform heating from top to bottom in the bathtub without the need for an electric pump or the like. The purpose is to eliminate the fear of water burns and to promote convection within the bathtub.

This will be explained below based on the illustrated embodiment. 1 is a bathtub, 2 is a heater of a bathtub connected to the upper and lower parts of the bathtub 1 through an upper inlet passage 3 and a lower outlet passage 4, and 5 is the heater. burner heating 2, 6
A water intake valve is provided near the connection between the heater 2 and the inflow path 3, and is normally opened by the force of the spring 7, and is closed against the force of the spring 7 when the internal pressure of the heater increases.
Reference numeral 8 denotes a water discharge valve provided near the connection between the heater 2 and the outflow path 4, which is normally closed by the force of a spring 9, and is pushed open against the spring 9 as the internal pressure of the heater increases. Reference numeral 10 denotes a mixing ejection body provided at the end of the outflow path 4 on the bathtub 1 side, which includes a mixing nozzle 11 that ejects hot water from the heater 2, and a suction port by a negative pressure suction action generated by the ejection of hot water from the nozzle 11. It is composed of a mixing nozzle 13 that sucks bathtub water from 12, mixes it with hot water, and sends it out into the bathtub 1.

The present invention has such a configuration, and when the burner 5 is ignited after the bathtub 1 is filled with water, water vapor is generated in the heater 2, and the internal pressure of the heater increases rapidly. At this pressure, water intake valve 6
is closed, and when the internal pressure further increases, the water spout valve 8 is pushed open against the spring 9, and the hot water that has been heated in the heater 2 is pushed down by the pressure of steam, and the water spout valve 8 is pushed open.
It flows out into the bathtub 1. Along with this, the internal pressure of the heater 2 drops rapidly, and the water intake valve 6 is opened by the spring 7.
The heater 2 is returned to the open state by force, and water is sucked into the heater 2 from the inflow path 3, filling the heater 2 again and restoring the initial state. By repeating this process, the bath water is circulated and heated.

By the way, the hot water heated by heater 2 (hot water)
If the bathtub 1 is directly poured into the bathtub 1, there is a risk of burns during bathing. However, in the present invention, since the mixing ejection body 10 is provided, the ejection nozzle 11
The low-temperature bath water sucked in from the suction port 12 is mixed with the steam-containing hot water ejected from the bathtub 1 in the mixing nozzle 13, and is heated to an appropriate temperature before being ejected into the bathtub 1, making it safe. In addition, in addition to the flow that is sucked into the inflow channel 3 and moved, a flow that is sucked into the suction port 12 is generated, so that the bath water flows over a wider area in the bathtub 1, so that the water flows up and down due to reverse circulation from the lower part of the tank. Uniform heating can be achieved even more completely.

As described above, according to the present invention, it is possible to achieve uniform heating in the top and bottom of the bath by forcedly blowing out heated water without using an electric pump, and it is also possible to obtain a safe and comfortable bath heating device that eliminates the risk of burns caused by blowing out boiling water. be.

[Brief explanation of the drawing]

The drawing is an overall schematic diagram showing an embodiment of the present invention. 1... Bathtub, 2... Heater, 3... Inflow path, 4
...Outflow path, 6...Water intake valve, 8...Water discharge valve, 10
...Mixed ejector, 11...Eject nozzle, 13...
mixing nozzle.

Claims (1)

[Scope of utility model registration request] The bathtub and the heater are communicated through an inflow path and an outflow path, and a water intake valve that closes as the heater internal pressure rises is installed at the connection between the inflow path and the heater, and a water intake valve that closes as the heater internal pressure increases is installed at the connection between the outflow path and the heater. Water discharge valves that open as the bathtub rises are provided, and a spray nozzle that sprays hot water from the heater onto the bathtub-side end of the outflow path, and a negative pressure created by the hot water jet from the spray nozzle sucks in the bathtub water and mixes it with the hot water. A bath heating device characterized in that it is provided with a mixing ejection body consisting of a mixing nozzle.