JPH0610921Y2 - Electric warming pot - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention relates to an electric heat-insulating pot for boiling water to keep it warm.

(Prior Art) As an electric heat-insulating pot of this kind, a heater is provided in a tank, and the water injected into the tank is boiled into high-temperature hot water by the heater to keep it warm, and this hot water is appropriately operated by an electromagnetic pump. It is known that the water is poured from the tap.

(Problems to be solved by the invention) However, in such a conventional electric insulation pot, the pouring amount of hot water per hour when the electric pump is operated is always constant, and is set to a relatively large amount. There is. For this reason, if you try to receive the hot water flowing out of the hot water outlet with a relatively small container, there is a risk that the hot water may splash outside the container or suddenly overflow, resulting in unexpected burns. The danger is even greater in households where young children such as infants often handle.

For this reason, if the pouring amount of hot water is always set to be small, the efficiency will be reduced and a problem in terms of usability will occur when the hot water is received in a large container.

The present invention has been made in view of such a point, and an object thereof is to provide an electric insulation pot in which the pouring amount of hot water can be appropriately switched and set as needed. .

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention pours the hot water in the tank boiled through the heater from the hot water outlet by the operation of the electromagnetic pump. In the system, a voltage switching mechanism for switching an applied voltage to the electromagnetic pump and an operating body for setting an applied voltage value for the electromagnetic pump by operating the voltage switching mechanism and holding the set state are provided. Is.

(Operation) When the voltage applied to the electric pump is reduced by the voltage switching mechanism, the operation cycle of the electric pump is reduced,
When the pouring amount of hot water per hour is narrowed, and conversely, when the voltage applied to the electromagnetic pump is increased, the operation cycle is increased and the pouring amount of hot water per hour is increased. Then, once the voltage applied to the electric pump is set by the operating body, the set state is maintained as it is, and the hot water can be poured out at the same hot water discharge amount every time hot water is discharged.

(Embodiment) An embodiment of the present invention will be described below.

1 to 3 show a first embodiment, in which 1 is a case, a cylindrical tank 2 having a bottom is housed in the case 1, and a heater 3 for boiling water is provided on the outer periphery of the lower portion of the tank 2. And the heater 4 for keeping heat are respectively wound, and the case 1
A hot water outlet pipe 5 is disposed on the front side of the hot water outlet pipe 5, a lower end portion of the hot water outlet pipe 5 serves as a hot water outlet 6, and the hot water outlet pipe 5 is covered with a cover 7. On the outer peripheral portion of the tank 2, a water guiding pipe 9 and a transparent water level gauge pipe 1 communicating with the inner bottom portion of the tank 2.
0 are provided substantially vertically, the upper end of the pipe 9 is connected to the hot water outlet pipe 5 via the check valve 11, and the upper end of the water level gauge pipe 10 is connected to the tank 2 via the connecting bush 12. It is connected to the upper side. A water level of the same level as in the tank 2 is generated in the water level gauge pipe 10, but the water level gauge pipe 10 faces a water level window (not shown) formed on the side surface of the case 1, and therefore the water level is By visually observing the water level gauge pipe 10 from the outside of the case 1 through the window, the amount of hot water in the tank 2 can be known.

An electronic circuit unit 14 is provided below the tank 2,
The heater 3.4 is controlled by an electronic circuit incorporated in the electronic circuit unit 14, and by this control, the water injected into the tank 2 is once heated until it boils and then kept at a high temperature of about 98 ° C. When the reboil button (not shown) is operated during this heat retention, the hot water is heated to the boiling state again.

An electromagnetic pump 1 as an electric pump is provided on the inner bottom of the tank 2.
5 and a pump switch 16 for opening and closing the energizing circuit of the electromagnetic pump 15 is provided at the upper end of the case 1. The electromagnetic pump 15 has an air discharge port 17, an air supply tube 18 is attached to the air discharge port 17, and the tip of the air supply tube 18 is connected to the side surface of the connection bush 12, whereby the electromagnetic pump 15 is connected. Depending on the operation of the tank 2 through the connecting bush 12 from the air supply tube 18
Compressed air is sent to the upper layer inside. A variable resistor 20 is provided inside the cover 7 that covers the tap pipe 5 as a voltage switching mechanism for switching the voltage applied to the electromagnetic pump 15. The variable resistor 20 is a rotary type that changes the resistance value of the variable resistor 20. An operation knob 21 as an operation body that can be held at an arbitrary rotation position is provided so as to project to the front side of the cover 7. Then, the electromagnetic pump 15, the variable resistor 20, the pump switch 16
Are sequentially connected in series to the power source 22, as shown in FIG.

A lid 24 that opens and closes the opening of the tank 2 is rotatably attached to the upper end of the case 1 via a hinge pin 25. The lid 24 is provided with a vapor escape passage 26,
The vapor escape passage 26 communicates with the inside of the tank 2 through an inflow port 27 at one end, and communicates with the atmosphere through an outflow port 28 at the other end. A ball valve 29 is movably arranged inside the inflow port 27, and when the hot water in the tank 2 is boiled, the steam is discharged from the gap between the ball valve 29 and the inflow port 27 into the steam escape passage 26. And further, this vapor flows out through the vapor escape passage 26 to the atmosphere from the outlet 28. A partition wall 30 is provided in the middle of the steam escape passage 26, and a valve opening 31 is formed in the center of the partition wall 30.

A hot water button 32 is provided on the lid 24 so as to be vertically movable,
The hot water button 32 integrally has a pair of operating rods 33.34, and one operating rod 33 covers the pump switch 16 so that the flexible waterproof cover 34 covers the pump switch 16.
And the other operating rod 34 projects into the steam escape passage 26, and the bellows packing 3 is attached to the tip end thereof.
5 is mounted, and the bellows packing 35 faces the valve opening 31 with a space therebetween. Springs 36.36 are mounted on the outer circumferences of the operation rods 33.34, respectively. The springs 36.36 elastically bias the entire hot water discharge button 32 upward, and the hot water discharge button 32 is resisted against this biasing force. When pushing down with a fingertip, the operating rod 33 contacts the pump switch 16 to close the contact of the pump switch 16, and the operating rod 34 causes the bellows packing 3 to be closed.
5 is pushed down and abuts against the valve opening 31, and the abutment closes the valve opening 31. Reference numeral 38 denotes a lock button for the hot water discharge button 32, which is provided slidably in the front-back direction of the lid body 24. The lock button 38 integrally has a locking portion 39, and the locking portion 39 normally contacts the lower surface of the hot water button 32 to prevent the hot water button 32 from descending. When it is slid to the rear side of 24, as shown by the chain line in FIG. 1, the locking portion 39 moves to the space portion 32a inside the hot water button 32, thereby unlocking the hot water button 32. It is like this.

Next, the operation will be described.

When pouring hot water, the lock for the hot water button 32 is unlocked and the hot water button 32 is pushed downward. Along with this, the contact of the pump switch 16 is closed and the valve port 31
Are sealed with a bellows packing 35. Then, the electromagnetic pump 15 is operated by closing the pump switch 16, and compressed air is sequentially sent to the upper layer portion in the tank 2 through the air supply tube 18, and the compressed air pressurizes the molten metal surface in the tank 2. The hot water in the tank 2 is poured from the hot water outlet 6 through the hot water pipe 9 and the hot water outlet pipe 5 by the pressing force.
Also, when the push on the hot water button 32 is released,
The hot water button 32 is raised by the urging force of the spring 36.36, the contact of the pump switch 16 is opened, and the electromagnetic pump 1
The operation of 5, that is, the pouring of the hot water is stopped, and the valve port 31 is opened so that the steam can flow.

Here, if the tapping button 32 is pressed while the resistance value of the variable resistor 20 is set to a large value by the operation of the operation knob 21, the resistance value of the variable resistor 20 is large, so Electromagnetic pump 1 connected in series
The applied voltage to 5 decreases and the operation cycle thereof decreases, whereby the amount of hot water flowing out of the hot water outlet 6 per hour is reduced.

On the other hand, when the resistance value of the variable resistor 20 is set to be small, on the other hand, the applied voltage to the electromagnetic pump 15 increases, so that the operation cycle increases and the amount of hot water flowing out from the hot water outlet 6 per hour increases. Then, by appropriately adjusting the resistance value of the variable resistor 20 between the minimum value and the maximum value,
The amount of hot water can be adjusted almost steplessly, and the adjusted setting state can be maintained.

Therefore, for example, in a home where a small container often receives hot water flowing out from the tap 6 or a home where a young person often handles a pot, the resistance value of the variable resistor 20 is set to a large value in advance. By doing so, the amount of hot water flowing out from the hot water outlet 6 is reduced, and safety is maintained. When receiving hot water in a large container or when an elderly person handles a pot, if the resistance value of the variable resistor 20 is set to a small value via the operation knob 21, a large amount of hot water will flow out from the hot water outlet 6. It is possible to obtain hot water efficiently.

FIG. 4 shows a second embodiment of the present invention, which is an electromagnetic pump 1
5, a changeover switch 42 is connected in series, a fixed resistor 43 is connected in parallel to the changeover switch 42, and the changeover switch 42 can be opened / closed by the operation knob 21. In such an embodiment,
When the changeover switch 42 is set to the open state, the applied voltage to the electromagnetic pump 15 is reduced and the amount of hot water is reduced. When the changeover switch 42 is set to the closed state, the electromagnetic pump 1
The applied voltage to No. 5 is increased and the amount of hot water is increased, so that it can be handled in the same manner as in the above embodiment.

[Effects of the Invention] As described above, according to the present invention, the amount of hot water poured can be appropriately adjusted and set, so that a small container can receive the hot water flowing out from the hot water outlet, and a young person can handle the pot. In such a case, set a condition in which the amount of hot water decreases to ensure safety,
In other cases, there is an advantage that hot water can be efficiently obtained by switching to a state where the amount of hot water increases. Then, once the voltage applied to the electric pump is set by the operating body, the set state can be maintained as it is. Therefore, unless the setting is switched, the amount of hot water dispensed is kept constant every time hot water is discharged. be able to.

[Brief description of drawings]

FIG. 1 is a sectional view of the entire electric insulation pot showing the first embodiment of the present invention, FIG. 2 is a partial front view of the same, FIG. 3 is an electric circuit diagram of the same, and FIG. It is an electric circuit diagram which shows a 2nd Example. 2 ... Heater, 3.4 ... Heater, 6 ... Outlet, 15
...... Electromagnetic pump, 20 ... Variable resistor (voltage switching mechanism), 21 ... Operation knob (operating body), 42 ... Changeover switch (voltage switching mechanism), 43 ... Fixed resistor (voltage switching mechanism).

Claims (1)

[Scope of utility model registration request] 1. In a device for pouring hot water in a tank boiled through a heater from a hot water outlet by the operation of an electric pump, a voltage switching mechanism for switching a voltage applied to the electric pump and the voltage switching mechanism are interlocked with each other. By setting the applied voltage value to the electric pump and holding the set state, the tank is operated by operating the electric pump under the set state of the applied voltage value to the electric pump held by the operating body. An electric warming pot, comprising: a hot water discharge button for discharging hot water from inside and stopping the operation of hot water by stopping the operation thereof.