JPH0463300B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application] The present invention relates to a fully automatic bath system, and particularly to the construction of a drain plug for a bathtub.

[Prior Art and its Problems] Recently, bathtubs with a water heater have become popular, which automate the filling of the bathtub with hot water using a water heater and also enable reheating during bathing if necessary.

Although this type of model automatically fills the water and heats the water to a set temperature suitable for bathing, it is necessary to close the drain plug of the bathtub before operating the bathtub, which is troublesome.

In order to solve this inconvenience, a publicly known automatic opening/closing faucet is added to the bathtub, and the opening/closing of this automatic opening/closing faucet is linked with the operation of the bathtub without any special configuration. It is disclosed in Publication No. 62-57045.

According to this prior art, a central control panel can be installed in a place away from a bathroom, such as a kitchen, and this control panel is provided with an operation section for automatic operation. A control device is built into the bath device to automatically proceed with the operations from closing the drain valve to reheating and finishing cooking through the automatic operation.

Therefore, the trouble of going to the bathroom and closing the drain valve before automatic operation is eliminated.

Further, in this prior art, the bathtub is equipped with a manual opening/closing device for the drain plug, so there is an advantage that the water can be drained manually.

However, in this prior art, the structure of the drain valve is complicated to enable the operation of the drain valve during automatic operation and the opening and closing of the drain valve by manual operation, and it is necessary to prepare a bathtub with a special configuration. There is a need.

The present invention has been made in view of this point, and includes a drain plug for a bathtub 10 that can be opened and closed by an electrical remote control signal and also by manual operation from inside the bathtub. The objective is to simplify the stopper and its driving mechanism.

[Technical Means] The technical means of the present invention taken to solve the above-mentioned technical problem is that ``a valve seat is provided at the top of the cylindrical body 17 whose upper end is open to the bottom surface of the bathtub 10 and connected to the drain pipe 12''. An operating portion is connected to the upper surface of the valve body 16 which is provided with a port 19 and closes the valve seat port 19, and this operating portion is exposed in the bathtub. An electromagnetic device is provided outside the cylindrical body 17, and the protruding end of the valve shaft 18 corresponds to the reciprocating drive thrust applying portion. and the reciprocating drive thrust applying section and the valve shaft 18 are in a mutually disconnected state.''

[Operation] The above technical means of the present invention operates as follows.

By inputting a remote control signal, the reciprocating drive thrust applying part of the electromagnetic device is operated, and the valve shaft 18 is driven in the axial direction to open and close the valve body 16 of the drain valve, so that it can be incorporated into an automatic bath system. If the
As in the past, it opens and closes in response to automatic operation control signals.

To open the drain plug manually, the operating section connected to the top surface of the valve body 16 is pulled up from the bathtub 10 side. Since the valve stem 18 and the reciprocating drive thrust applying section of the electromagnetic device are not connected to each other, when the valve body 16 is pulled up, the valve body 16 opens regardless of the interlocking with this reciprocating drive thrust applying section. can.

[Effects] Since the present invention has the above configuration, it has the following unique effects.

The drain valve can be operated in the same way as before by inputting a remote control signal, and it is also possible to open and close the drain valve manually, but the configuration to enable manual opening and closing is significantly simpler than the conventional type described above. can be converted into

Further, since the tubular body 17 is connected to the bathtub 10 to form a drainage circuit, there is no need for the bathtub to have a special configuration, and a conventional ordinary bathtub can be used.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.

In this embodiment, the drain plug 1 has the structure shown in FIG.
is inserted into an electrical circuit as shown in the figure.

In addition, the bath device of this embodiment has a first heat exchanger 5 for hot water supply and a second heat exchanger 6 for bathing installed side by side in one appliance. A proportional control valve 43 is inserted into the gas circuit to the gas burner 51, and the proportional control valve 43 is controlled by the output from the control device 4.

An on-off valve 44 made of a solenoid valve is inserted into the gas circuit to the gas burner 61 of the other second heat exchanger 6, and is controlled by the output of the control device 4 in the same way as the proportional control valve 43.

The former proportional control valve 43 is for maintaining the outlet temperature of the first heat exchanger 5 at a set temperature,
The output of a sensor 50 that detects one of a pair of connecting water pipes 62, 62 connecting the bathtub 10 and the second heat exchanger 6 and the temperature of hot water flowing into the hot water supply circuit 52 is input to the control device 4, and according to this input signal, gas burner 51
control the amount of gas supplied to the Therefore, in the control device 4, the input signal from the sensor 50, the set water temperature set by the hot water temperature setting knob 22 of the main control panel 2 or the hot water temperature setting knob 34 of the sub control panel 3, and the sensor 50 are used. A predetermined output signal is inputted to the proportional control valve 43 by comparing and calculating the output values.

Therefore, even if the amount of hot water changes, the temperature of hot water supplied to the bathtub 10 and the temperature of hot water supplied to the hot water supply circuit 52 will be maintained at the set temperature.

The other on-off valve 44 is opened and closed by operating the reheating switch 32 provided on the sub-control panel 3, and by operating this, the circuit to the gas burner 61 is opened and closed as necessary, and reheating is performed. It becomes possible. Incidentally, as a control method for starting combustion of the gas burner 61, a pilot light method and a direct ignition method can be adopted. In the former case, the pilot flame is ignited when the appliance starts operating, and in the latter case, the gas burner 61 is directly ignited each time it is reheated.

Further, in this embodiment, a solenoid valve 45 is inserted into the hot water supply circuit to the bathtub 10, and is linked to a water level switch 42 that detects the amount of hot water stored in the bathtub 10. When the amount of stored hot water reaches a set value, the electromagnetic valve 45 is closed by the output of the water level switch 42, and the filling of hot water is stopped.

The main control panel 2 includes a main operation switch 21 for performing a series of operations such as filling water with the drain valve 1 in the closed state and boiling the water to a set temperature.
A power switch 23 for turning on the power and a hot water temperature control knob 22 are provided, and the other sub-control panel 3 includes:
Main operation switch 3 similar to main operation switch 21
1. Reheating switch 32, opening operation switch 3
3 and a hot water temperature setting knob 34 are provided, and operations for automatic operation can be performed from either the main control panel 2 or the sub control panel 3.

Next, the structure of the drain plug 1 and its control circuit are configured as shown in FIG. 2, and a combination of a permanent magnet 15 and an electromagnet M is adopted as a mechanism for opening and closing the drain plug 1. The valve body 16 is pivotally supported by a cylindrical body 17 provided in the drain pipe 12 so as to be able to rise and fall freely, and the valve body 16 is attached to the upper end of the valve shaft 18. It faces the valve seat opening 19 from inside the bathtub 10. The lower end of the cylindrical body 17 is closed by a flexible membrane piece D made of rubber, and a leaf spring S with an arcuate cross section for snap action is attached to the membrane piece D.
It is disposed on the outside of the cylinder body 17 and is constructed between the open lower end portion of the cylinder body 17 and the lower end portion of the valve shaft 18 . and,
The urging force of the leaf spring S maintains two states: a valve open state and a valve closed state.

The permanent magnet 15 is attached to the lower end of the valve body 16, and faces the electromagnet M fixedly arranged below it.

Electrically, the opening operation switch 33 is a combination of a changeover switch 35 and a normally open switch 36, and the changeover switch 35 and an electromagnet M
The excitation coils N are connected in series, and the contact on the normally open side of the changeover switch 35 is grounded. Further, the normally open switch 36 is inserted between the negative pole side of the excitation coil N and the power supply, and the normally open switch 36 is inserted between the negative pole side of the excitation coil N and the power supply.
7 is inserted into the ground circuit from the negative pole side of the excitation coil N.

Therefore, in this embodiment, when the opening operation switch 33 is not operated, the excitation coil N becomes conductive by closing the main operation switch 21, and a positive magnetic force is generated in the electromagnet M. When the permanent magnet 15 is attracted to the electromagnet M and the valve body 16 is in the open state, the valve body 16 is closed by this operation.

Conversely, when the open operation switch 33 is operated, the normally open side contact of the changeover switch 35 is closed, and at the same time, the normally open switch 36 is closed, and a current in the opposite direction is applied to the excitation coil N, and the electromagnet A magnetic force in the opposite direction is generated in M.

Therefore, the magnetic force generated in the electromagnet M and the permanent magnet 15
Due to the repulsion with that of the leaf spring S, the valve stem 18 is lifted up against the downward biasing force of the leaf spring S.
When the valve body 16 is reversed beyond the fulcrum, the valve body 16 is maintained in the open state by the biasing force of the leaf spring.

Particularly in this embodiment, since the membrane piece D is a snap-action type spring, the membrane piece D can be set in two states: the state shown by the solid line and the state shown by the creative line in the figure. Therefore, as shown in the figure, by pulling the chain connected to the upper end of the valve shaft 18, the drain valve 1 can be opened without operating the valve opening operation switch 33, and the power switch 23 can be opened. Drainage is possible even after the equipment has been completely stopped (even after the equipment has been completely stopped).

[Brief explanation of drawings]

FIG. 1 is an overall explanatory diagram of a bath device according to an embodiment of the present invention, and FIG. 2 is a drain plug and its control circuit diagram.
In the figure, 10... Bathtub, 12... Drain pipe, 17... Cylindrical body, 19... Valve seat opening, 16... Valve body.

Claims (1)

[Claims] 1. A drain plug for a bathtub 10 that can be opened and closed by an electric remote control signal and also by manual operation from inside the bathtub, the upper end of which is open to the bottom of the bathtub 10 and connected to the drain pipe 12. cylindrical body 17
A valve seat opening 19 is provided in the upper part of the valve seat opening 19, and an operating part is connected to the upper surface of the valve body 16 that closes the valve seat opening 19, and this operating part is exposed in the bathtub. An electromagnetic device that projects outward from the cylinder body 17 and applies reciprocating drive thrust to the corresponding shaft portion in response to input of a remote control signal is provided outside the cylinder body 17, and the valve shaft 18 is attached to the reciprocating drive thrust applying portion. A fully automatic drain plug for a bathtub device, in which the reciprocating drive thrust applying part and the valve shaft 18 are not connected to each other, with the protruding ends of the valve shaft 18 corresponding to each other.