JPS6192639A - Pot - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a kettle for boiling water in a tank.

[Technical background of the invention and its problems] In a typical pot, water is stored in a tank, the temperature is raised to about 90 to 95°C via a heater, and the water is heated at 30 to 50 W. It is normal to keep the place warm with a heat insulating heater, but for tea strainers, etc., it is considered preferable for flavor to boil it once and then cool it to around 70℃ before use. For this reason, boiling-type kettles that temporarily boil water in a tank have recently been provided.

This type of kettle has a tank inside the case,
The inner plug is removably attached to the opening at the top of this tank.
The top surface of this inner stopper is covered with a top lid, and a steam escape path is formed to communicate the inside of the tank with the atmosphere, and the water is boiled in the tank and the steam is released through the steam escape path. .

However, in the past, the top cover was screwed in, and the inner stopper was completely restrained by this top cover, so if the steam escape passage became clogged with foreign matter, or if the inside of the tank Detects the water temperature and passes it to the heater [! If the detection thermostat that performs 1Iil were to cause an accident such as a short circuit, the pressure inside the tank would become abnormally high due to steam, which could cause the tank to burst and cause an unexpected danger.

[Purpose of the Invention This invention was made with attention to the above points,
The purpose of this is to ensure that even if the steam escape passage were to become clogged or the detection thermostat were to cause an accident, the water boiler would not be in danger of bursting the tank. The purpose is to provide pots.

[Summary of the Invention] That is, the present invention provides a top lid disposed on the top surface of the inner stopper.
It has a rotatable structure that rotates using one end as a fulcrum.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a cylindrical case, and an end plate 2 is attached to the upper opening of the case 1. A cylindrical tank 3 with a bottom is housed inside the case 1, and the opening periphery of the upper end of the tank 3 is supported by the lower surface of the end plate 2 via a pushing member 4. A water inlet 5 is formed in the end plate 2,
An inner stopper 7 is removably attached to the water inlet 5 via a backing 6, and by removing the inner stopper 7, water can be injected into the tank 3 from the water inlet 5. There is. A heater 8 and a heat-retaining heater 9, which are controlled through a cooling thermostat (not shown), are installed around the lower end of the tank 3, and the heater 8 boils the water in the tank 3 until it boils. Later, the area is kept warm by a heat-retaining heater 9. Inner stopper 7
A steam escape passage 10 is formed inside, and this steam escape passage 10 has an inlet 11 at one end and an outlet 12 at the other end. The inlet port 11 passes into the tank 3 via a flow path 13 formed at one end of the inner stopper 7. Further, a cylindrical backing 14 is attached to the upper surface of the inner plug 7 so as to surround the outer circumferential side of the inflow port 11.

An inverted bowl-shaped top lid 15 is provided on the top side of the inner stopper 7.
One end of the upper lid 15 is rotatably supported on the end plate 2 via a pin 16. A substrate 17 is provided on the lower surface of the upper lid 15, and this substrate 17 is in contact with the backing 14 so as to be able to come into contact with and separate from the backing 14. A movable plate 1 is provided above the board 17.
8 is provided, and a telescopic bellows 19 is provided between the movable plate 18 and the base plate 17. A circular recess 20 is formed at the upper end of the upper lid 15, and a cylindrical pusher body 21 with an inverted bottom is fitted into the recess 20 so as to be vertically movable.

A sliding hole 22 is formed in the center of the bottom surface of the recess 20, and a cylindrical closing body 23 is slidably inserted into the sliding hole 22. The upper end of this closing body 23 is connected to the pushing body 2 through a screw 24.
], and has a closing portion 25 at its lower end that protrudes like a brim from its outer periphery. A through hole 26 is formed in the center of the movable plate 18, a flat annular backing 27 is attached to the inner peripheral edge of the through hole 26, and the closing portion 25 faces the backing 27 at a distance.

Then, the rod-shaped opening/closing body 2 is inserted into the through hole 26 through the gap 28.
The opening/closing body 29 has its lower end slidably passing through the substrate 17, and a circular opening/closing plate 31 covered with a backing 30 is attached to the end surface of the opening/closing body 29. It faces the inlet 11 of the passage 10 at a distance. A plurality of ventilation holes 32 are formed in the substrate 17 facing the opening/closing plate 31, and these ventilation holes 3
2... are hermetically closed by the backing 30 of the opening/closing plate 31. The upper end of the opening/closing body 29 faces into the closing body 23 , and a first spring 33 is provided between the upper end surface of the opening/closing body 29 and the inner top surface of the closing body 23 .
A second spring 34 is wound around the outer periphery of the spring 9.
The elastic force of the spring 34 is equal to the elastic force of the first spring 33.
By overcoming the elastic force of the opening/closing body, the two opening/closing bodies are elastically urged upward. Further, a third spring 35 is wound around the outer periphery of the closure body 23, and this third spring 35
The pushing body 21 is elastically urged upward, and the closing portion 25 of the closing body 23 is brought into contact with the edge of the sliding hole 22 due to this urging force. Furthermore, a fourth spring 3 is installed within the bellows 19.
6 is provided, and the movable plate 18 is divinely biased upward by this fourth spring 36, and the upper surface of the movable plate 18 is formed into an annular shape protruding from the lower surface of the bottom of the recess 20 by the biasing force. It is in contact with the protrusion 20a.

A guide tube 37 is integrally formed at one end of the base plate 17, and the upper end of the guide tube 37 protrudes outward from the wall surface of the upper lid 15 by an appropriate amount, and a plurality of steam holes 38 are bored in the protruding end surface. ing. A flat annular backing 39 is attached to the opening edge of the lower end of the guide tube 37, and these three backings are in contact with a flat annular backing 40 attached to the inner peripheral edge of the outlet 12 of the steam escape passage 10 so as to be able to come and go. There is. End plate 2
and protrusions 41 and 42 on the other end side of the upper lid 15, respectively.
are formed, these protrusions 41 and 42 overlap each other so as to be able to approach and separate, and a molten metal guide path 43 is formed inside the protrusion 41 of the end plate 2. This molten metal guide path 43 is opened to the outside through an extraction port 44 formed on the lower surface of the tip side of the protrusion 41, and a molten metal guide pipe 46 is connected to the end of the molten metal guide path 43 on the substrate side via a check valve 45. It is connected. This hot water supply pipe 46 is vertically inserted into the tank 3, and the opening at its lower end faces near the inner bottom surface of the tank 3. In addition, 47 has the upper M15 at the end 1.
2), and 48 is a lever for releasing it. Further, 4 is a liquid level gauge that displays the liquid level in the tank 3, and 50 is a viewing window thereof.

In the pot configured in this way, the steam generated in the tank 3 flows through the flow passage 13, the inlet 11, and the steam escape passage 1.
0, the outlet 12, the guide tube 37 and then the steam hole 38...
・It is discharged to the outside of the pot.

When the pushing body 21 is pressed downward in this state, the first spring 33 is compressed, and this compression moves the opening/closing body 29 downward, and the opening/closing plate 31 moves toward the backing 30.
This abuts against the inlet 11 via the inlet 11, thereby closing the inlet 11 and opening the ventilation holes 32. Further, as the pushing body 21 descends, the closing part 25 of the closing body 23 fits into the backing 27 of the through hole 26, and the inside of the bellows 19 is sealed, and the movable plate 18 is pressed downward.
This compresses the bellows 19 and the air inside it. Then, the compressed air is sent into the tank 3 through the ventilation holes 32 and the flow path 13, and the liquid level of the hot water is pressurized. Due to this pressurization, a part of the hot water in the tank 3 is led out from the spout 44 through the hot water pipe 46 and the hot water path 43. After that, when the pressure on the pusher body 21 is released, the pusher body 21 rises due to the elastic force of the third spring 35, and accordingly, the opening/closing body 29 rises due to the elastic force of the second spring 340, and the closing portion 25 closes. Separated from the backing 27, external air flows into the bellows 19 through the through hole 26,
As this air flows in, the movable plate 18 is raised by the elastic force of the fourth spring 36, and the bellows 19 is restored to its original state. By repeating these operations, the hot water in the tank 3 can be taken out in appropriate amounts.

The inside of the tank 3 communicates with the outside through a steam escape passage 10, but when the bellows 19 causes a compression operation, the steam escape passage 10 is closed by the opening/closing plate 31 of the opening/closing body 29, and communication between the inside of the tank 3 and the outside is interrupted. Since the state is blocked, bellows 1
Ensure that the compressed air in tank 3 does not leak to the outside.
It can be introduced inside. In normal times, the steam in the tank 3 is discharged to the outside through a separate steam relief path 10 without passing through the bellows, so there is no fear that the bellows 19 will be deteriorated by the heat of the steam. There are advantages.

By the way, if the steam escape passage 10 is clogged and blocked due to foreign matter adhering to the steam escape passage 10, the pressure inside the tank 3 becomes high due to the steam when the water boils. However, the top lid 15 disposed on the top surface of the inner stopper 7 is rotatably supported by the bottle 16, that is, it is not a screw-in type, and the top lid 15 is latched by a latching mechanism 47. However, since there is a slight play in the latched state, as the pressure inside the tank 3 increases, the inner stopper 7 and the top cover 15 are slightly displaced upward, and the steam inside the tank 3 flows into the water inlet 5. It flows out through the gap between the inner stopper 7 and the gap between the inner stopper 7 and the upper M15, so that the danger of the tank 3 bursting can be avoided. Also, tank 3
If the detection thermostat 1-, which detects the water temperature in the water and turns on or off the heater 8, has an accident such as a short circuit, the water will continue to boil while the heater 8 remains energized. Although the pressure inside the tank 3 becomes high due to the steam, even in such a case, the steam can similarly be released to prevent the tank 3 from bursting.

[Effects of the Invention] As explained above, according to the present invention, even if the steam escape passage becomes clogged due to foreign matter adhering to it, or the detection thermostat causes an accident, the tank will remain intact. This has the effect of not causing any danger of rupture.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of the present invention before operation, and FIG. 2 is a cross-sectional view of the main parts during operation. 3...Tank, 7...Inner stopper, 10...Steam release path, 15...Top lid.

Claims (1)

[Claims] An inner stopper is removably arranged at the opening of the tank, and a top cover is arranged on the top surface of the inner stopper, and the water is boiled in the tank and the steam is released through a steam release path, and the top cover is arranged at the opening of the tank. A water boiling pot characterized by having a rotatable structure that rotates using one end as a fulcrum.