JPH0634446Y2 - Expansive water drainage of a stop-type electric water heater - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an expansion water drainage channel of a stop-type electric water heater attached to various sanitary facilities such as a washbasin, a hair washer, and a handwasher.

[Conventional technology]

As the structure of such an expansion water drainage channel, for example, as described in U.S. Pat.No. 3,885,584, the end of the expansion water drainage channel from the relief valve provided in the water heater is drained from a washbasin or the like. Some are connected to pipes.

However, when attaching the water heater to the washbasin and connecting the expanded water drain pipe from the water heater and the drain pipe from the washbasin, etc. There is a problem of the mixing of wastewater into the.

This problem was assigned to this expansion water drainage channel in 1975 by the Ministry of Construction.
Based on 1597, there is an attempt to solve the problem by providing a discharge port and a water receiving port for opening to the atmosphere, a trap in this, and a check valve in this trap.

[Problems to be solved by the device]

At that time, no matter where the drainage channel from the washbasin and the drainage channel from the water heater are connected, the pipes will have two systems: the drainage pipe from the water heater and the drainage pipe from the washbasin. And that the piping work becomes complicated,
Even if various backflow prevention mechanisms are provided in the two drainage channels, it is extremely difficult to completely prevent backflow of wastewater and transmission of malodor to the water heater.

The problem to be solved in the present invention is to solve the problem associated with drainage channel connection in equipment such as a washbasin equipped with a water heater.

[Means for Solving the Problems]

The expansion water drainage of the stop-type electric water heater of the present invention is provided with a rising part having a drainage drain for overflow water at the back of the washbasin, and the tip of the expansion water drainage from the expansion water relief valve of the water heater is It is characterized in that it is connected to the overflow drainage channel at a position above the overflow outlet formed in the washbasin.

[Action]

In this way, by connecting the drainage channel from the relief valve of the water heater to the overflow drainage channel at a position above the overflow outlet formed in the washbasin, the drainage channel of the water heater can be connected to the drainage channel of the washbasin, etc. Can form a completely independent system, therefore
It is possible to completely prevent the backflow of sewage and the inflow of foul odors from drains such as washbasins.

〔Example〕

FIG. 1 is a view showing a sectional structure of a hair washer having an expansion water drainage channel according to the present invention.

In the figure, reference numeral 20 denotes a hair washer having a rising portion 21 on the back surface, and an overflow drainage channel 25 connected to a drainage channel 24 is provided inside the rising portion 21.

Stop-type electric water heater attached to the lower back of the hair washer 20
The inflated water drainage channel 4 rises up through the back of the hair washer 20, and the tip of the drainage channel 4 rises at the rising portion 21 of the hair washer 20.
It is open inside.

The opening of the expanded water drainage channel 4 from the water heater 1 is a hair washer 20
Overflow outlet 23 in the ball, which is higher than the drain outlet 22 of
It is positioned higher than the above. For this reason, the expanded water drainage channel 4 and the drainage channel 24 from the hair washer 20 are completely cut off, and the backflow of drainage can be prevented.

As described above, according to the expanded water drainage channel of this embodiment, the expanded water drainage channel 4 from the water heater 1 is separated from the drainage channel 24 of the hair washer 20 without impairing the function and appearance of the hair washer 20. Thus, it is possible to completely prevent the rise of bad odor and the backflow of dirty water to the water heater 1.

In the above embodiment, the application example to the hair washer has been described, but it is of course applicable to various sanitary facilities such as a general wash basin with a water heater and a hand wash.

[Effect of device]

Since the expansion water drainage channel of the stopper type electric water heater of the present invention has the above-mentioned configuration, the following effects can be achieved.

(1) Prevents backflow of sewage to the water heater caused by the connection of the expansion water drainage channel and the drainage channel from the wash basin, etc. without introducing a complicated mechanism as in the past, and introduces the stench into the water heater. Can be prevented.

(2) It is not necessary to provide extra piping in the lower part of a washbasin or the like to which a water heater is attached, so that a usable space can be created and the space can be used as a facility for multi-functionalization.

(3) Since the expanded water drainage channel is connected to the overflow drainage channel that cannot be seen from the outside, there is no exposed portion to the outside, and the appearance is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a hair washer having an expansion water drainage channel of a stop type electric water heater according to an embodiment of the present invention. 1: Stop water heater 4: Expansive water drainage channel 20: Hair washer (basin) 21: Hair washer rising part 22: Hair wash outlet 23: Overflow outlet 24: Hair wash outlet 25: Overflow Drainage channel

Claims (1)

[Scope of utility model registration request] 1. A drainage channel (25) for flooding is provided on the back of the washbasin (20).
Is provided with a rising part (21) having a riser, and the tip of the expansion water drainage channel (4) from the expansion water escape valve of the water heater (1) is more than the overflow outlet (23) formed in the washbasin (20). An expansion water drainage channel for a stop-type electric water heater, which is connected to the overflow drainage channel (25) at an upper position.