JPS627961Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a one-can, two-channel circulating hot water bath pot that incorporates a bath heat exchanger and a hot water heat exchanger in a single can body, and prevents erroneous operation and malfunction. The purpose is to provide a circulating hot water bath pot.

A detailed explanation will be given below using the drawings.

In the illustrated embodiment, 1 is a hot water supply heat exchanger 2
and a bath heat exchanger 3 connected to a bathtub 5 through a circulation pipe 4, the can body is constructed of common fins, and is heated by a main burner 6. The operating device 9 controls the supply of gas to the burner within a 270° rotation range of a single operating shaft 10, and the operating shaft 10 is integral with the cam shaft 11 in terms of rotation. It is connected. 15 is camshaft 1
1 is a press shaft that slides up and down within the control shaft 1. When the operation shaft 10 is pushed in, the pressure shaft is lowered to open the electromagnetic safety valve 16. 12
13 is a cam that rotates together with the cam shaft 11 and opens the hot water supply gas valve 17 at a predetermined rotation angle, 13 is a cam that similarly opens the bath gas valve 18, and 14 is a cam that similarly opens the pilot gas valve 19. So, operation axis 10
The electromagnetic safety valve 16 and the pilot gas valve 19 are opened in the first 90° rotation range, the pilot burner 7 is ignited, and the electromagnetic safety valve 16 is energized by the thermoelectromotive force generated in the thermocouple 8 and kept open. next 90
Open the hot water supply gas valve 17 within the rotation range of 90°
This is closed in the rotation range of 0.degree., and the bath gas valve 18 is opened, thereby distinguishing between the use of hot water supply and the heating of the bath. 24 is a water tap interposed in the water supply pipe 28;
Reference numeral 25 denotes a hydraulically actuated device that is installed downstream of the water tap 24 and operates to open the gas valve 27 provided in the hot water supply gas passage 29 when water is flowing when the water tap 24 is opened. The hydraulic actuator 25 divides the inside of the box with a diaphragm 26, and uses the displacement of the diaphragm 26, which responds to water pressure in the water pressure chamber A when water is flowing, to open the gas valve 27 and supply gas to the main burner 6. .

A hot water supply gas passage 29 provided from the hot water supply gas valve 17 interposes the gas valve 27 and then merges with the outlet side of the bath gas valve 18 to form a gas passage leading to the gas burner 6. Gas valve for hot water supply 1
7 and the gas valve 27 are both opened, and
When the bath gas valve 18 is opened, combustible gas is supplied to the gas burner 6 from the gas passage leading to the gas burner 6.

As described above, the present invention provides a one-can, two-channel circulating hot water bath pot in which a circulating bath pot and a stop-start water heater are incorporated in a single can body 1.
The operating shaft 1 is provided coaxially with the operating shaft 10 of the shaft.
A closing mechanism is provided in the water supply pipe 28 at a position upstream of the water supply faucet 24, so that it opens only at the 0 hot water supply position and remains closed at other positions. .

In the illustrated example, 20 is a faucet body through which the operating shaft 10 can move vertically, and 21 is a closure housed in the faucet body 20, which rotates together with the operating shaft 10.
An opening 22 is drilled so as to open a water supply channel only at the hot water supply position (180° position) (see FIG. 3). 23 is a spring that holds the closure 21. The above 20 to 23 constitute a closing mechanism.

The operation of such a circulating hot water bath pot is carried out as follows.

First, by first pushing and turning the operating shaft 10 by 90 degrees, the pressing shaft 15 is lowered to open the electromagnetic safety valve 16, and before and after this, the pilot gas valve 19 is opened by the cam 14 and the pilot burner is opened. 7 is ignited, and the electromagnetic safety valve 16 is attracted and held open as described above. The next 90° rotation of the operating shaft 10 causes the cam 12 to open the hot water supply gas valve 17, and the closure 21 also rotates to open the closure mechanism and become ready for water supply, and the water supply valve is opened. When the valve 24 is opened independently, the water pressure operating device 25 is activated and the gas valve 27 is opened, so hot water can be used.
When the hydrant 24 is closed, the hydraulic actuator 25 stops its operation and the main burner is extinguished, and hot water can be used at any time by opening the hydrant 24. When the operating shaft 10 is further rotated by 90 degrees, the cam 13 opens the bath gas valve 18, and the main burner 6 is ignited to heat the bath. In this position, the closing mechanism is closed. Because there are
Even if the water tap 24 is opened, hot water cannot be used.

The characteristic features of the present invention are as follows.

The closing mechanism located upstream of the hydrant is configured to open only at the hot water supply position of the operating shaft, so even if the hydrant is opened at any other position on the operating shaft, water will not flow from the shower head at the end of the water supply pipe or the serpentine pipe. Also, hot water will not be discharged unexpectedly, especially when using a bath, the heat exchanger is heated by the main burner, but even if the water tap is opened by mistake at the bath location, water will not be supplied to the water pipe. , it is possible to prevent burn accidents caused by the discharge of hot water from the shower head, and with this closing mechanism, hot water is used in conjunction with the opening of the faucet at the hot water supply position of the operation shaft, and when the faucet is opened at the bath position. The system is configured so that only the heating of the bath can be used even if the system is heated, and the hot water supply and the bath are completely separated even though there are two channels in one can, completely preventing malfunctions and malfunctions and ensuring safe use. It is something that can be done.

In addition, this invention has the closing mechanism coaxially with the operating shaft, which not only provides excellent operability, but also an extremely small size.
In particular, since it is manufactured to be thin, it has practical value, such as being suitable for use in a circulating hot water bath pot that is used in a bathroom in parallel with a bathtub.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall configuration diagram, FIGS. 2 and 3 are explanatory views of the operation taken along the line B-B' in FIG. 1, and FIG. Figure 3 shows the operating shaft hot water supply position (180° rotation position). DESCRIPTION OF SYMBOLS 1... Can body, 2... Heat exchanger for hot water supply, 3... Heat exchanger for bath, 6... Main burner, 9... Operating device, 10... Operating shaft, 20... Faucet body, 21 …
... Closure, 24 ... Water faucet, 25 ... Water pressure operating device, 28 ... Water supply pipe.

Claims (1)

[Scope of utility model registration request] A hot water supply heat exchanger 2 and a bath heat exchanger 3 are incorporated into a single can body 1, and a water supply tap 24 is installed in a water supply pipe 28.
A hydraulic actuation device 25 is provided downstream of the hydrant 24 and operates to open the gas valve 27 interposed in the hot water supply gas passage 29 when the hydrant 24 is opened and water is flowing. 9 1 axis operation axis 1
In a one-can, two-channel circulating hot water bath pot in which the supply of gas to the burner is controlled by rotation of 0, the rotor is installed coaxially with the operating shaft 10 and is opened only when the operating shaft 10 is at the hot water supply position. A one-can, two-channel circulating hot water bath kettle, characterized in that a related closing mechanism is interposed in the water supply pipe 28 at a position upstream of the water supply faucet 24.