JPH072755Y2 - Emergency hot water supply mechanism in automatic hot water supply system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is an automatic hot water supply system capable of discharging water from a water tap and stopping water by making a sensor detect an object such as a user's hand or an article. The emergency hot water supply mechanism at the time of power failure in Japan.

(Prior Art) Conventionally, a sensor is used to automatically discharge fluid,
As an automatic water stoper, there is one shown in Fig. 1 (Fig. 5 of the present application drawing) of Japanese Utility Model Laid-Open No. 60-139975. Referring briefly to FIG. 5 above, a water spout 42 having a sensor 41 is attached to the washbasin 40.
Below the 40, a case 45 with a control unit 43 and a solenoid valve 44 is installed.
Is an automatic faucet device mounted between the primary side water supply pipe 46 and the secondary side water supply pipe 47, and when a hand is extended below the water discharge tool 42,
The sensor 41 detects this, and sends a signal to the control unit 43, and the control unit 43 opens the electromagnetic valve 44 based on this signal to start the water supply from the water discharger 42, and when the detection disappears, the water supply is started. Is to stop.

Since the above-mentioned automatic faucet device does not have a function of supplying water when stopped, there is a disadvantage that water cannot be supplied when the solenoid valve does not operate due to a sudden power failure.

(Problem to be Solved by the Invention) A problem to be solved by the present invention is to provide a water faucet for controlling water discharge and water stoppage through a sensor and a fluid discharge provided in a flow path leading to the water faucet. A solenoid valve to control the stop,
In an automatic hot water supply system equipped with a temperature control valve for setting the temperature and flow rate of fluid and a flow rate control valve, it is possible to supply hot water and water even if the solenoid valve does not operate due to a sudden power failure. .

(Means for Solving Problems) The technical means taken by the present invention to solve the above problems is, in claim 1, a sensor for discharging and stopping water on a top plate of a washbasin or a sink. A water tap provided, an electromagnetic valve for releasing and stopping the fluid based on the signal from the sensor, a temperature control valve for setting the temperature and flow rate of the fluid supplied from the water tap, and an automatic flow rate control valve attached. In a hot water supply system, a cylinder is arranged in the middle of a flow path connecting the valve seat opening of the flow rate control valve and the solenoid valve, and a communication opening that is in constant communication with the flow path through the valve seat opening in the cylinder. And a pipe for connecting the solenoid valve and a water tap to the opening of the cylinder, with a switching valve having Connect via a bypass pipe Hot water can be supplied by connecting the communication port and the opening of the switching valve by operating the petal at any time. In claim 2, the top plate of the washbasin or the sink can be used to discharge water or stop water. A water faucet equipped with a sensor for performing, a solenoid valve for releasing and stopping the fluid based on a signal from the sensor, a temperature control valve and a flow rate control valve for setting the temperature and flow rate of the fluid supplied from the water faucet. In the attached automatic hot water supply system, a valve seat opening of the flow rate control valve and a cylinder provided with the valve seat opening facing each other are provided in the middle of a flow path connecting the solenoid valve, A switching valve that opens and closes the valve seat opening is elastically interposed in the cylinder, and a petal supported by a sleeper is attached to the other end of a rod whose one end is connected to the switching valve, and an opening portion of the cylinder, Connect the solenoid valve and water tap Pipe and communicated through the bypass tube is obtained by allowing hot water by communicating the valve seat opening and the opening of the switching valve by the operation of in the petals in the event of a power failure.

(Function) When a sensor such as a hand or a container is made to detect an object such as a finger or a container and a sudden power failure occurs during hot water supply or water supply, the solenoid valve is momentarily closed to stop hot water supply. When the petal provided in the lower part of the washbasin or the sink is stepped on with the tip of the foot without any hassle, in claim 1, the switching valve in the cylinder is lowered via the rod to communicate with the communication port of the switching valve. By connecting the bypass pipe with the bypass pipe, the switching valve in the cylinder is raised via the rod so that the valve seat opening of the switching valve and the bypass pipe are in communication with each other, whereby the flow control valve and the solenoid valve are connected. The fluid in the flow path connecting to and can be made to flow out into the pipe through the bypass pipe, and hot water can be supplied to the water tap as it is. If unnecessary, the hot water and water can be stopped by releasing the toes from the petal.

(Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings.

In the embodiment of the present invention, as shown in FIGS. 1 and 2 (a) and (b), the flow rate control valve A is a temperature control valve B and a water tap C.
Along with the mounting holes 2, 2a, 2b formed in the top plate 1 such as a wash basin or sink via nuts 3, 3a, 3b, the flow rate control valve A is upstream from the valve seat opening 4. The temperature control valve B and the solenoid valve D on the downstream side are connected to each other through a flow path 5, and a cylinder 6 is connected and arranged in the middle of the flow path 5 with a valve seat opening 4a as a boundary. 6
A switching valve 9 having a communication port 8 and a communication port 8a capable of communicating the valve seat port 4a with an opening 7 described later is interposed between the valve seat port 4a and the opening 7 and a spring 11 is provided between the switching valve 9 and the blind lid 10. As well as ammo
The inner end of a rod 12 penetrating the blind lid 10 from the outside and the bottom surface of the switching valve 9 are integrally coupled, and the outer end of the rod 12 is connected to one end of a foot-operated petal 13. The bypass pipe 14 has one end connected to the opening 7 of the cylinder 6,
The emergency hot water supply means E is constructed such that the other end communicates with a pipe 15 described later through a pipe joint 16. The temperature control valve B
Are provided with water valve seats 17 and hot water valve seats 18 on the upper and lower sides in the vertical direction, and communicate with a water supply source and a hot water supply source, respectively. In the water valve section 20
The valve bodies 22 each having the hot water valve portion 21 provided at the bottom are integrally attached. The flow rate control valve A communicates with the valve seat 4 and the water valve seat 17 and the hot water valve seat 18 of the temperature control valve B, respectively, and the valve seat 23 has a valve body 23 of a valve shaft 19a.
The flow rate can be adjusted freely. The valve seat 4b of the solenoid valve D communicates with the flow path 5 and the valve seats 4 and 4a on the upstream side and also communicates with the pipe 15 via the check valve seat 24 on the downstream side. The extension end communicates with the water tap C, and the head 26 at the tip of the water discharge pipe 25 of the water tap C is connected to the solenoid valve D through an electric wiring F in response to a hot water discharge port 27 and a hand or other object. 28 to automatically open and close
Are provided respectively. FIG. 4 shows another embodiment of the emergency hot water supply means E. This emergency hot water supply means E ′ has another valve seat opening 4c facing the downstream side of the valve seat opening 4a provided in the cylinder 6a. And a switching valve 9a is elastically corresponded to the valve seat opening 4c by a spring 11, and the switching valve 9a is connected to the rod 12a.
Is attached to the lower end of the rod 12, and the petal 13a supported by the sleeper 29 is connected to form the pallet 30.
When the pedal is stepped on the outside of the rod 12, the rod 12 rises via the petal 13a, and the switching valve 9a integrated with the rod 12 is raised against the accumulated force of the spring 11 to open the valve seat opening 4c. It was done. It should be noted that the cylinders 6 and 6a may be separately provided and may be attached to existing ones without limitation. Now, when an object such as a hand or an article requiring cleaning is inserted into the space below the discharge port 27 shown in FIG. 1, the sensor 28 senses the presence of this object, and the sensor 28 causes the solenoid valve D to operate. Energize to open the valve seat opening 4b. In this case, if the flow rate control valve A is in the open state, the fluid whose temperature has been previously adjusted to an appropriate temperature by the temperature control valve B is the flow path 5a, the valve seat opening 4, the flow path 5, the valve seat opening 4b, and the check valve. It reaches the water tap C through the valve seat port 24 and the pipe 15, and is normally supplied from the discharge port 27 through the water tap C and the water discharge pipe 25. The valve D immediately stops the exciting action and closes the valve seat opening 4b. The solenoid valve D closes the valve seat 4b to stop the discharge of the hot water, so that the user has a petal 13
When the operation of stepping on is performed, the switching valve 9 connected to the petal 13 via the rod 12 resists the elasticity of the spring 11 to move the inside of the cylinder 6 from the position shown in FIG. Displace to position. Due to the displacement of the switching valve 9, the switching valve 9
Since the communication port 8a of the flow path 5 communicates with the opening 7 of the bypass pipe 14, the fluid in the flow path 5 passes through the valve seat port 4a, the communication ports 8 and 8a, the opening 7 and the bypass pipe 14, and then to the pipe 15. When it reaches, hot water is supplied from the discharge port 27 as described above. Petal 13 when finished
When the foot is released from, the switching valve 9 is restored to the position shown in FIG. 2 (a) by the elastic return of the spring 11, and the hot water supply is stopped. Also, in the case of another embodiment, the operation is performed according to the above.

(Effect) Since the present invention is configured as described above, it has the following advantages.

(1) A switching valve, which communicates via a valve seat opening and has a communication opening, is elastically interposed in the middle of the flow path connecting the flow rate control valve and the solenoid valve, and this switching valve is connected to the petal via a rod. Therefore, when the solenoid valve is closed due to a sudden power failure, not only can you freely discharge the hot water by simply stepping on the petal, but you can accidentally step on the petal or There is no problem in terms of functionality even if there is something that is misled.

(2) The mechanism is simple, and the simple modification that only connects the cylinder to the flow rate control valve is combined with the small number of parts. Therefore, the fatal drawback of the automatic hot water supply system is improved at an extremely low cost. The effect is extremely large.

[Brief description of drawings]

FIG. 1 is a front view of a partial cutaway of the overall arrangement of the present invention, FIG. 2 (a) is a partial longitudinal sectional view showing the main part of the present invention, and FIG. Enlarged plan view, Figure 3,
FIG. 4 is an explanatory diagram of an operating procedure, FIG. 4 is an explanatory diagram of another embodiment, and FIG. 5 is an explanatory diagram of a conventional technique. (Explanation of symbols of main parts) 1 ... Top plate 4, 4a, 4c ... Valve seat opening 5 ... Flow path, 6, 6a ... Cylinder 7 ... Opening part, 8, 8a ... Communication opening 9 , 9a …… Switching valve, 12 …… Rod 13 …… Petal, 14 …… Bypass pipe 15 …… Piping, 28 …… Sensor 29 …… Sleeves, A …… Flow control valve B …… Temperature control valve, C… … Water tap D …… Solenoid valve

Claims (2)

[Scope of utility model registration request] 1. A water faucet C having a sensor 28 for discharging and stopping water on a ceiling plate 1 of a wash basin or a sink, and the sensor.
An automatic hot water supply system equipped with a solenoid valve D for releasing and stopping the fluid based on a signal from 28, and a temperature control valve B and a flow rate control valve A for setting the temperature and flow rate of the fluid supplied from the water tap C. At the valve seat opening 4 of the flow control valve A
And a solenoid valve D, a cylinder 6 is arranged in the middle of the flow path 5, and a switching valve having communication ports 8 and 8a which are in constant communication with the flow path 5 through the valve seat port 4a. 9 is elastically interposed, and one end of which is connected to the switching valve 9
A petal 13 for footing is attached to the other end of 12 and a pipe connecting the opening 7 of the cylinder 6 to the solenoid valve D and the water tap C.
15 is connected via a bypass pipe 14, and hot water can be supplied by connecting the communication ports 8, 8a of the switching valve 9 and the opening 7 by operating the petal 13 at the time of power failure. Emergency hot water supply mechanism for automatic hot water supply system. 2. A water faucet C having a sensor 28 for discharging and stopping water on a top plate 1 of a wash basin or a sink, and the sensor.
An automatic hot water supply system equipped with a solenoid valve D for releasing and stopping the fluid based on a signal from 28, and a temperature control valve B and a flow rate control valve A for setting the temperature and flow rate of the fluid supplied from the water tap C. At the valve seat opening 4 of the flow control valve A
And a cylinder 6a provided with valve seat openings 4a and 4c facing each other at a predetermined interval in the flow path 5 connecting the solenoid valve D, and the valve seat opening 4c is provided in the cylinder 6a. Switching valve that opens and closes
9a is elastically interposed, and at the other end of a rod 12 having one end connected to the switching valve 9a, a petal 13 supported by a sleeper 29.
a is attached, the opening 7 of the cylinder 6a and the pipe 15 connecting the solenoid valve D and the water tap C are communicated with each other through a bypass pipe 14, and the valve of the cylinder 6a is operated by operating the petal 13a during a power failure. An emergency hot water supply mechanism in an automatic hot water supply system, characterized in that hot water can be supplied by communicating the seat 4a and the opening 7.