JPH0228327B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pot for storing hot water.

This type of pot houses a tank for storing hot water inside the case, and a rotatable top cover is attached to the top of the case, and the top cover is opened when pouring hot water into the tank, and the top cover is normally opened when pouring hot water into the tank. It is configured to be latched to the case by a latching mechanism to prevent the case from being opened inadvertently. Furthermore, there is a system in which the tank is communicated with the atmosphere and the steam inside is released to the outside of the pot, thereby preventing the tank from becoming abnormally high in pressure.

However, in the past, the steam in the tank escaped through the gap between the top lid and the top of the case, so when the top lid latching mechanism was operated, the high-temperature steam could inadvertently come into contact with the user's hand. There was a risk of serious burns.

This invention was made with attention to these points, and its purpose is to prevent the hands from inadvertently coming into contact with steam when operating the latching mechanism of the top lid, thereby ensuring safety. The purpose is to provide a pot that allows this operation to be performed.

That is, in this invention, a top cover is rotatably provided at the upper end of a case housing a hot water storage tank, a bellows for pressurizing the hot water in the tank is provided inside the top cover, and the steam in the tank is transferred to the bellows. A steam hole is formed to allow the steam to flow out of the pot through a steam escape path that does not pass through the pot, and the steam hole is located at a position away from the location of the operating body that attaches and detaches the top cover from the case. be.

An embodiment of the present invention will be described below 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, and an inner plug 7 is removably attached to the water inlet 5 through a packing 6. By removing the inner plug 7, water is poured from the water inlet 5 into the tank 3. It is now possible to inject A heater 8 and a heat-retaining heater 9 are provided on the outer periphery of the lower end of the tank 3. The heater 8 boils the water in the tank 3 until it boils, and then the hot water is transferred to the heat-retaining heater 9.
It is kept warm by. A steam passage 10 is formed inside the inner stopper 7, and this steam passage 10 has an inlet 11 at one end and an outlet 12 at the other end. The inlet port 11 communicates with the inside of the tank 3 via a flow path 13 formed at one end of the inner plug 7. Further, a cylindrical packing 14 is attached to the upper surface of the inner stopper 7 so as to surround the outer circumferential side of the inflow port 11.

An inverted arm-shaped upper lid 15 is provided at the upper end of the case 1 and is located on the upper surface side of the inner plug 7. One end of the upper lid 15 is rotatably supported on the end plate 2 via a pin 16. There is. A substrate 1 is provided on the bottom surface of this upper lid 15.
7 is provided, and this substrate 17 is attached to the packing 1
It is in contact with 4 so that it can come into contact with and separate from it. A movable plate 18 is provided above the substrate 17, and a telescopic bellows 19 is provided between the movable plate 18 and the substrate 17. A cylindrical recess 20 is provided on the upper end side of the upper lid 15.
is formed, and an inverted bottomed cylindrical pusher body 21 is fitted into this 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. This closing body 23 has an upper end fixed to the inner top surface of the pushing body 21 via a screw 24, and has a closing part 25 at its lower end projecting like a brim around its outer periphery.
A through hole 26 is formed in the center of the movable plate 18, and a flat annular packing 27 is formed on the inner peripheral edge of the through hole 26.
is attached, and the closure body 2 is attached to this packing 27.
5 are spaced apart and facing each other. And the above-mentioned through hole 26
A rod-shaped opening/closing body 29 is inserted through the gap 28,
The opening/closing body 29 has a lower end that slidably passes through the base plate 17 , and a circular opening/closing plate 31 covered with packing 30 is attached to the end surface of the opening/closing body 29 . They face each other at a distance of 11. A plurality of ventilation holes 32 are formed in the substrate 17 facing the opening/closing plate 31, and these ventilation holes 32 are hermetically closed by the packing 30 of the closing plate 31. Opening/closing body 2
The upper end of 9 faces into the closing body 23, and this opening/closing body 29
A first spring 33 is provided between the upper end surface and the inner top surface of the closing body 23, and a second spring 34 is wound around the outer periphery of the opening/closing body 29. overcomes the elastic force of the first spring 33, so that the opening/closing body 29 is elastically urged upward. Also, the closure body 2
A third spring 35 is wound around the outer periphery of the closing body 23, and this third spring 35 elastically biases the pushing body 21 upward, and this biasing force causes the closing body 25 of the closing body 23 to close the sliding hole. It is in contact with the edge of 22.
Furthermore, a fourth spring 36 is provided in the bellows 19, and the fourth spring 36 elastically biases the movable plate 18 upward, and the biasing force causes the upper surface of the movable plate 18 to reach the bottom of the recess 20. It abuts on an annular protrusion 20a protruding from the lower surface.

A guide cylinder 37 is integrally formed at one end of the substrate 17, and the upper end of the guide cylinder 37 penetrates the wall surface of the upper lid 15 and projects to the outside, and a plurality of steam holes 38 are bored in the projecting end surface. . Guide tube 37
A flat annular packing 39 is attached to the opening edge at the lower end, and this packing 39 comes into contact with a flat annular packing 40 attached to the inner circumferential edge of the outlet 12 of the steam path 10 so as to be able to come and go. A series of steam escape paths 51 are configured that connect the inlet 11 and the steam holes 38. Projections 41 and 12 are formed on the other end sides of the end plate 2 and the upper lid 15, respectively, and these projections 41 and 42 overlap each other so as to be able to come and go. 4
3 is formed. This hot water channel 43 is the protrusion 4
It is opened to the outside through a spout 44 formed on the lower surface of the distal end side of the molten metal pipe 43 , and a molten metal guide pipe 46 is connected to the proximal end of the molten water guide path 43 via a check valve 45 . 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. Reference numeral 47 denotes a locking mechanism for locking the top cover 15 on the end plate 2, and 48 is an operating body for engaging and removing the top cover. ing. The steam holes 38 are provided at positions away from the area where the operating body 48 is arranged, for example, in the upper part of the pin 16 that is the most distant from the operating body 48. Note that 49 is a liquid level gauge that displays the liquid level in the tank 3, and 50 is a viewing window thereof.

According to such a configuration, the steam generated in the tank 3 flows through the flow path 13, the inlet 11, the steam path 10,
After passing through the outlet 12 and the guide tube 37 in sequence, the steam hole 38...
from the tank to the outside of the pot, and therefore from tank 3.
There is no abnormally high pressure inside. Since the steam holes 38 through which the steam flows out are located on the opposite side of the operating body 48,
When operating the operating body 48, the hand is not inadvertently touched by high-temperature steam, and therefore the operating body 48 is safely operated to release the latch mechanism 47 and open the top cover 15. be able to.

When taking out the hot water in the tank 3, first press the pusher 2.
Press 1 downward. In response to this, the first spring 33 is compressed, and this compression causes the opening/closing body 29 to move downward, and the opening/closing plate 31 collides with the inlet 11 via the packing 30, thereby closing the inlet 11. At the same time, the ventilation holes 32 are opened.
Further, as the pushing body 21 descends, the closing part 25 of the closing body 23 collides with the packing 27 of the through hole 26, and the inside of the bellows 19 is sealed, and the movable plate 18 is pressed downward. bellows 19
and the air inside it is compressed. The compressed air is then introduced 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 34, and the closing portion 25
is separated from the packing 27, external air flows into the bellows 19 through the through hole 26, and as this air flows in, the movable plate 18 rises due to the elastic force of the fourth spring 36, and the bellows 19 returns to its original state. Restore to. By repeating such operations, the hot water in the tank 3 can be taken out in appropriate amounts.

It communicates with the outside through a steam release path 51 inside the tank 3, but when the bellows 19 or compression operation is performed, the inlet 11 is closed by the opening/closing plate 31.
Since communication between the inside of the tank 3 and the outside is cut off, the compressed air inside the bellows 19 can be reliably introduced into the tank 3 without leaking to the outside.

In addition, since the steam in the tank 3 flows out from the steam holes 38 through the steam escape passage 51 that does not pass through the inside of the bellows 19, the steam does not come into contact with the bellows 19, and therefore thermal deterioration of the bellows 19 is prevented. prevention and improve durability.

As explained above, according to the present invention, a steam hole is formed that allows the steam in the tank to flow out of the pot, and the steam hole is located at a position that avoids the area where the operating body for attaching and detaching the top cover to and from the case is located. This prevents your hands from inadvertently coming into contact with high-temperature steam when operating the operating body.
Therefore, the operating body can be operated safely to open the top cover, and since the steam in the tank is made to flow out of the pot from the steam hole through a steam release path that does not pass through the bellows, the bellows This has the effect of preventing thermal deterioration of the material and improving its durability.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main parts when hot water is drawn out. 1...Case, 3...Tank, 15...Top lid,
38... Steam vent, 47... Latching mechanism, 48... Operating body.

Claims (1)

[Scope of Claims] 1. A top cover is rotatably provided at the upper end of a case housing a hot water storage tank, an operating body for hooking and removing the top cover from the case, and a bellows for pressurizing hot water in the tank. and a steam hole communicating with the tank through a steam escape path that does not pass through the inside of the bellows, and the steam hole is located horizontally apart from the operating body. 2. Claim 1, characterized in that the steam hole is located near the pivot point of the top cover.
The pot mentioned in the section.