JPH09302750A - Electric water heater for hand-washing of low tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric water heater for the hand-washing of a low tank, in which no check valve, etc., is required, by which a user can be supplied with hot water at the temperature of hot water comfortable for the user as hot water for the hand-washing of the low tank and which needs no new space. SOLUTION: In an electric water heater for the hand-washing of a low tank, water from a feed water pipe 11 is heated by an auxiliary tank 3 with a heating body 13, and heated hot water is supplied from a discharge opening 15 in the upper section of the low tank 1. A path being branched from the feed water pipe 11 in the low tank 1 and feeding the discharge opening 15 with hot water through the auxiliary tank 3 is mounted. In the electric water heater for the hand-washing of the low tank 1, water in the low tank 1 is heated, and supplied from the discharge opening 15 for hand-washing formed to the upper section of the low tank 1. A parting plate 35 installed into the low tank 1, a heating body 13 heating water fed from a small hole 37 formed to the parting plate 35, and a hot-water delivery pipe 9 for supplying the discharge opening 15 with hot water heated by the heating body 13 through a pump P are set up, and the pump P is operated and stopped by a sensor 39 fitted near the discharge opening 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to pipe hot water heated by an auxiliary tank or the like into an electric water heater for hand washing of a low tank used as hot water for hand washing of the low tank.

[0002]

2. Description of the Related Art Conventionally, in an electric water heater for hand washing of a low tank, as disclosed in Japanese Utility Model Laid-Open No. 62-172771,
The water from the water supply pipe is heated in the auxiliary tank, and the heated water is supplied from the outlet for hand washing through the water supply hole of the raw tank.

[0003]

However, the electric water heater for hand washing of the low tank described above has a problem that a check valve or the like is required so that the water in the auxiliary tank does not flow backward, resulting in a high cost.

Further, since the auxiliary tank is provided near the raw tank, there is a problem that a considerable space is required.

Therefore, the first object of the present invention is to pay attention to the fact that the low tank has one water supply hole on each of the left and right sides, and a check valve or the like is not required, and moreover, as hot water for hand washing of the low tank, the user can It is to provide an electric water heater for low-tank hand-washing that can supply a comfortable hot water temperature.

A second object of the present invention is to provide an electric water heater for low tank hand washing which does not require a new space.

[0007]

In order to achieve the above object, in the present invention, water from a water supply pipe is heated in an auxiliary tank equipped with a heating body, and the heated hot water is discharged from an upper outlet of the low tank. In the electric water heater for hand washing of the low tank supplied from the water tank, there is provided a path composed of a water inlet pipe branched from the water supply pipe inside the low tank and a hot water outlet pipe for supplying hot water to the outlet via the auxiliary tank. It is characterized by that.

Further, the passage is connected to an auxiliary tank provided outside the raw tank via a water supply hole of the raw tank.

Further, a constant flow valve is provided on the water inlet pipe.

Further, the water supply pipe is provided with an opening / closing valve which is closed when the water level in the raw tank is equal to or higher than a certain level, and is opened when the water level is equal to or less than the certain level.

Further, the upper surface of the auxiliary tank is provided below the water inlet pipe or the on-off valve.

Further, it is characterized by further comprising a bypass pipe for mixing the water in the water supply pipe with the hot water heated in the auxiliary tank, and a control valve for adjusting the amount of water flowing through the bypass pipe.

Alternatively, in an electric water heater for hand washing of a low tank which heats water in the low tank and is supplied from a discharge port for hand washing provided at an upper portion of the low tank, a partition plate provided in the low tank and the partition plate. A heating element for heating water supplied from a small hole provided in the heating element and a hot water outlet pipe for supplying hot water heated by the heating element to the discharge port via a pump are provided. It is characterized in that it is activated and stopped by a sensor provided near the outlet.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a configuration diagram to which an embodiment of an electric water heater for hand washing of a low tank of the present invention is applied.

The electric water heater for hand washing of the low tank is
As shown in FIG. 1, a water supply pipe 11 for supplying water from a water supply source to the low tank 1 and the auxiliary tank 3, and the auxiliary tank 3
A discharge port 15 for discharging the hot water heated in is provided.

FIG. 2 shows the internal structure of the raw tank 1 and the auxiliary tank 3.

In the low tank 1, a ball tap 7 for using the water passing through the water supply pipe 11 as cleaning water for the toilet bowl.
And water is supplied into the auxiliary tank 3 through the water inlet pipe 5. Here, the upper surface of the auxiliary tank 3 is provided below the ball tap 7. Further, the water inlet pipe 5 is provided with a constant flow valve 6 for limiting the amount of water. Further, a heater 13 for heating the water supplied from the water inlet pipe 5 in the auxiliary tank 3,
The hot water heated by the heater 13 is supplied through the hot water discharge pipe 9 and the discharge port 15 provided in the upper part of the low tank 1.

Here, the water inlet pipe 5 and the hot water outlet pipe 9 are the water supply holes 21 of the low tank 1 to which the water supply pipe 11 is not attached.
Is attached to the connecting portion, and the cap nut 23,
It is through the packing 25.

The ball tap 7 has a floating ball 27 at the tip.
The inside of the low tank 1 is equipped with an on-off valve that opens when the water level goes down above a certain level and closes when it goes up.

Next, the general operation of the present invention will be described.

First, when a user operates a lever (not shown) for cleaning the toilet bowl, the water level in the low tank 1 is lowered and the float 27 moves downward, so that the opening / closing valve in the ball tap 7 is opened. At this time, the constant flow rate valve 6 provided in the water inlet pipe 5 prevents the water in the auxiliary tank 3 from overflowing.

Next, when water is supplied from the water supply pipe 11 into the auxiliary tank 3 through the raw tank 1 and the water inlet pipe 5, the pressure of the hot water stored in the auxiliary tank 3 causes
It is discharged from the discharge port 15 via the tap pipe 9. When the water level in the low tank 1 becomes equal to or higher than a certain level, the floating ball 27 moves upward, the on-off valve inside the ball tap 7 is closed, and the water supply from the water supply pipe 11 is stopped.

The heating means by the heater 13 in the auxiliary tank 3 may be heat-controlled so as to have an appropriate temperature, or may be heat-controlled so as to store hot water at a certain high temperature. When storing hot water at a high temperature, as shown in FIG.
Etc. are provided, the water in the water inlet pipe 5 and the hot water in the hot water outlet pipe 9 are mixed, the amount of water flowing in the bypass pipe 31 is adjusted by the control valve 33, and the temperature is controlled to an appropriate temperature.

Further, as shown in FIG. 4, the auxiliary tank 3 and the discharge port 15 may be integrated. Also in this case, the water supplied from the water inlet pipe 7 branched from the water supply pipe 11 is heated in the auxiliary tank 3 and then passes through the hot water outlet pipe 9 to the discharge port 15
Is discharged from.

Next, another embodiment of the present invention is shown in FIG.

A partition plate 35 having a small hole 37 is provided in the low tank 1. When the water level in the low tank 1 is above a certain level, the water in the low tank 1 enters through the small hole 37 and is formed by the partition plate 35. It is heated by the heater 13 provided in the hot water storage unit 51. The heated hot water is supplied from the discharge port 15 by operating the pump P provided in the hot water outlet pipe 9 when the sensor 39 provided near the discharge port 15 detects the user's hand. To be done.
If the sensor 39 does not detect the user's hand, the pump P
Is stopped and hot water supply is stopped.

In the above embodiment, the so-called hot water storage type in which the hot water stored in the auxiliary tank 3 is supplied has been described, but the instant type may be used.

In the case of the above-mentioned instantaneous type, since there is a case where hot water of an appropriate temperature cannot be sufficiently obtained with a household power source,
The discharge state from the discharge port 15 may be changed to a shower state to improve the feeling of hand washing.

Further, when hot water of an appropriate temperature is required for use in, for example, a local cleaning device, the hot water of an appropriate temperature may be supplied from the auxiliary tank 3 through a separate pipe.
In this case, a stop signal for local washing or a solenoid valve that opens and closes with a sensor that detects that the user is sitting on the toilet seat is provided in the middle of another pipe to control the start and stop of hot water supply.

[0031]

[Effects of the Invention] With the above configuration,
(1) Since the water supply pipe and the hot water discharge pipe are connected to the water supply hole of the existing low tank, it is not necessary to provide a hole and the structure can be achieved.

(2) Furthermore, since a constant flow rate valve is provided to limit the amount of water supplied, it is possible to prevent running out of hot water in the auxiliary tank.

(3) Furthermore, the on-off valve that opens and closes in conjunction with the vertical movement of the floating ball can supply hot water of an appropriate temperature to the user from the discharge port as needed.

(4) Further, since the auxiliary tank is provided below the opening / closing valve or the water inlet pipe, a check valve or the like is unnecessary.

(5) Furthermore, by providing a bypass pipe from the water inlet pipe to the hot water outlet pipe, it is possible to supply hot water of an appropriate temperature even when hot water is stored.

(6) Further, by providing a partition plate in the low tank and pumping the hot water heated in the hot water storage section by a pump, it is possible to supply hot water of an appropriate temperature from the discharge port without requiring a new space.

[Brief description of drawings]

FIG. 1 is a configuration diagram to which an electric water heater for hand washing of a low tank according to an embodiment is applied.

FIG. 2 is an internal configuration diagram of a low tank and an auxiliary tank.

FIG. 3 is an internal configuration diagram of an auxiliary tank according to another embodiment.

FIG. 4 is an internal configuration diagram of a raw tank and an auxiliary tank according to another embodiment.

FIG. 5 is a configuration diagram to which an electric water heater for hand washing of a low tank according to another embodiment is applied.

[Explanation of symbols]

 1 ... Low tank 3 ... Auxiliary tank 5 ... Water inlet pipe 6 ... Constant flow valve 7 ... Ball tap 9 ... Hot water outlet pipe 11 ... Water supply pipe 13 ... Heater 15 ... Discharge port 21 ... Water supply hole 23 ... Bag nut 25 ... Packing 27 ... Floating ball 31 ... Bypass pipe 33 ... Control valve 35 ... Partition plate 37 ... Small hole 39 ... Sensor 51 ... Hot water storage section

Claims (7)

[Claims] 1. An electric water heater for a hand wash of a low tank, wherein water from a water supply pipe is heated by an auxiliary tank equipped with a heating element, and the heated water is supplied from a discharge port above the low tank. An electric water heater for low-tank hand washing, characterized in that a path constituted by a water inlet pipe branched from the pipe and a hot water outlet pipe for supplying hot water to the discharge port via the auxiliary tank is provided. 2. The electric water heater for hand washing of a low tank according to claim 1, wherein the path is connected to an auxiliary tank provided outside the low tank via a water supply hole of the low tank. Electric water heater for hand washing of low tanks. 3. The electric water heater for hand washing of a low tank according to claim 1, wherein a constant flow valve is provided in the water inlet pipe. 4. The electric water heater for hand washing of a low tank according to claim 1, wherein the water supply pipe is provided with an opening / closing valve which is closed when the water level in the low tank is equal to or higher than a predetermined water level and is opened when the water level is equal to or lower than the predetermined water level. An electric water heater for hand washing of low tanks. 5. The electric water heater for hand washing of a low tank according to claim 1, wherein the auxiliary tank upper surface is provided below the water inlet pipe or the opening / closing valve. Water heater. 6. The electric water heater for hand washing of a low tank according to claim 1, wherein a bypass pipe for mixing the water in the water supply pipe with the hot water heated in the auxiliary tank, and the amount of water flowing through the bypass pipe. An electric water heater for hand washing of a low tank, which is equipped with a control valve for adjusting the temperature. 7. An electric water heater for hand washing of a low tank which heats water in the low tank and is supplied from a discharge port for hand washing provided in the upper part of the low tank, wherein a partition plate provided in the low tank and the partition plate. A heating element for heating water supplied from a small hole provided in the heating element, and a hot water outlet pipe for supplying hot water heated by the heating element to the discharge port via a pump, An electric water heater for low tank hand washing, which is activated and stopped by a sensor provided near the outlet.