JPH10272060A - Hot water storing electric container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent abnormal pressure rise in an inner container, and securely close a steam passage when a container main body is fallen. SOLUTION: A pressure space 103 is formed between an upper surface of a valve body 93 and a lower surface of a cover body. As adhesion surface 101 of a valve body 93 and a protruded part 102 gets into an adhesion condition, pressure in an inner container acts on an upper surface of the valve body 93 as well as on a lower surface. The valve body 93 speedily gets off the adhesion surface 101 of the protruded part 102, so abnormal pressure rise in the inner container is avoided. As a container main body is fallen, the upper surface of the valve body 93 tightly gets in contact with the adhesion surface 101. A lower opening of a steam passage is thus completely closed, thereby leak of hot water from the steam passage to the external can surely be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hot water storage container in which the lower opening of a steam passage communicating between the inside and the outside of a container is closed with a valve body when the container body falls down.

[0002]

Conventionally, an electric hot water storage container of this kind is provided with an electric pump as an outflow means by heating a liquid contained in an inner container with a heating means such as a heater and operating a tapping operation section. Is operated so that the hot water in the inner container flows out of the water channel to the outside.However, when the container body falls, the hot water does not leak to the outside from the steam passage communicating the inside and the outside of the inner container. In addition, a weight-shaped valve body that opens and closes a lower opening of the steam passage is provided. This valve is
It is housed in a bucket provided on the lower surface of the lid so as to be able to move up and down, and usually sits on the bottom surface of the bucket to open the lower opening of the above passage. The body moves to and adheres to the lower surface of the lid so as to close the lower opening of the steam passage.

In the above arrangement, if the main body is suddenly swung up with the lid closed, the valve moves to the lower side of the lid due to inertia. However, since the entire upper surface of the valve body is in close contact with the lower surface of the lid without any gap, once in the intimate contact state, the pressure in the inner container is unilaterally applied to the lower surface of the valve body, and the valve body separates from the lower surface of the lid. However, there is a problem that the pressure inside the inner container becomes abnormally high.

When the lid is opened immediately after boiling and the lid is closed again, cooled outside air is confined in the inner container, and the cool air is heated and expanded inside to push up the valve body.
Therefore, also in this case, when the valve body and the lower surface of the lid are in close contact with each other, the pressure in the inner container is unilaterally applied to the lower surface of the valve, and the valve is less likely to separate from the lower surface of the lid. , The pressure in the inner container rises abnormally.

[0005] In view of the above problems, an object of the present invention is to provide an electric hot water storage container capable of preventing abnormal pressure rise in an inner container and reliably closing a steam passage when the container body falls. I do.

[0006]

In order to achieve the above object, an electric hot water storage container according to the present invention has a container body, a bottomed cylindrical inner container provided in the container body, and Heating means for heating the stored liquid; a lid for opening and closing the upper opening of the inner container; a vapor passage provided in the lid for communicating between the inside and the outside of the inner container; And an up-and-down movable valve body that closes a lower opening of the steam passage, wherein a convex portion having a close contact surface with an upper portion of the valve body is provided at a lower portion of the lid body, A pressurized space is formed between an upper part of the valve body and a lower part of the lid.

[0007] According to the above configuration, even if the vessel body is suddenly swung up or the lid is opened immediately after boiling and the lid is closed again, the gap between the upper part of the valve body and the lower part of the lid is maintained. Since a pressurized space is formed in the inner container, when the contact surface between the valve body and the convex portion comes into close contact, the pressure in the inner container acts not only on the lower part but also on the upper part of the valve body, and the valve body quickly Detach from the contact surface of the projection. Further, when the container body falls down, the valve body is in close contact with the contact surface of the projection and closes the lower opening of the steam passage, so that leakage of hot water from the steam passage to the outside can be reliably prevented.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a vessel main body, and the vessel body 1 is provided with a leg 3 at the bottom of an outer case 2. An upper frame 4 is fixed to an upper portion of the outer case 2, and a projection 5 is provided at a front portion of the upper frame 4, and a discharge port 6 for hot water is opened below the projection 5. It is provided. Reference numeral 7 denotes a bottomed cylindrical inner container provided in the outer case 2, which is formed of a metal such as stainless steel. Further, reference numeral 8 denotes a lid provided at an upper opening of the inner container 7. The lid 8 is provided with a hinge 9 having a spring (not shown) for urging the lid 8 in an opening direction. It is pivoted behind. At the front of the lid 8, a lid opening / closing lever 10 is provided as a lid opening / closing operation section for fixing the lid 8 in a closed state. By operating the lid opening / closing lever 10, the lid 8 is moved. It can be opened and closed. Further, a steam passage 11 for communicating the inside of the inner container 7 with the outside is provided inside the lid 8,
On the upper surface side of the lid 8 of the steam passage 11, a steam hole 12 formed in a slit shape is formed.

Here, the configuration around the lid opening / closing lever 10 will be described in further detail. The lid 8 is made of a resin material such as polypropylene, and is provided with an upper lid 13 forming an outer shell upper surface and a lower side of the upper lid 13. The lower lid 14 is combined with the lower lid 14. Reference numeral 15 denotes a concave portion formed on the upper surface of the upper lid 13, and a hand can be inserted into the handle 16 of the lid opening / closing lever 10 from the concave portion 15. Also, the lid opening / closing cover 10
Is provided so as to be rotatable (in the directions of arrows A and A 'shown in FIG. 6) about the shaft portion 17 with respect to the shaft portion 17, but on the opposite side of the handle portion 16, the cover portion 8 is provided. A first locking piece 18 extending toward the outer peripheral surface 8A of the first locking piece 18 and a second locking piece 19 extending below the first locking piece 18 are formed. Inside the lid 8 facing the lower portion of the lid opening / closing lever 10, a lock claw 20 slidably provided in a lateral direction is provided. Lock claw 20
Is pressed in one direction by the lock claw spring 21 and pushes the lock claw 20 in the other direction against the urging force of the lock claw spring 21. The locking piece 19 is in contact with the upstanding piece 22 of the lock claw 20. Further, a claw portion 23 of the lock claw 20 located on the opposite side of the lock claw spring 21 protrudes from an opening 24 formed below the outer peripheral surface 8A of the lid 8, and is formed on the inner peripheral surface 4A of the upper frame 4. The projection 25 is detachably provided. At the lower part of the lower lid 14, a lid lower surface member 26 formed by pressing a metal plate such as aluminum is provided, and on the outer peripheral portion of the lower lid 14 and the lid lower surface member 26, When closed, an annular packing 27 that abuts on the lower portion of the inner peripheral surface 4A of the upper frame 4 is clamped and fixed.

A water conduit 32 extending from the inner container 7 to the outlet 6 is provided between the outlet 31 and the outlet 6 provided at the bottom of the inner container 7. Specifically, the water conduit 32 connects an electric pump 33 provided below the inner container 7 to the outflow portion 31 and connects a joint 34 to an outlet of the electric pump 33, thereby forming a transparent pipe corresponding to a water level pipe. After the glass pipe 35 is connected to the upper part of the glass pipe 35 and the backflow stop case 36 serving as a horizontal hot water supply part, the tapping pipe 37 provided with the discharge port 6 at the end is connected to the backflow stop case 36. It is composed. In the present embodiment, the electric pump 33 is provided as an outflow means for sending hot water from the inner container 7 to the outside through the water conduit 32 under pressure. However, instead of this, an air pump mechanism having a bellows built in a lid body is provided. May constitute the outflow means.

The backflow prevention case 36 has a lower chamber 38 communicating with the upper part of the glass pipe 35, and a partition 39 on the upper part of the lower chamber 38.
And an upper chamber portion 40 communicating with the discharge port 6 side through the opening. The partition wall 39 is provided with a hole 41 for a valve seat communicating vertically. The hole 41 has a tapping lock lever 64 described later.
The outflow prevention valve 42 that opens and closes the hole 41, that is, the water conduit 32, is provided in conjunction with. The outflow prevention valve 42 includes a valve body 43 capable of closing the entire hole 41 and a valve shaft 44 extending above the valve body 43.
The valve shaft 44 is provided through the hole 41 and the opening 45 formed on the upper surface of the upper chamber 40. The upper surface of the opening 45 is closed by an elastic packing 46 which is in close contact with the outer peripheral surface of the valve shaft 44, and the upper end of the valve shaft 44 projects upward from the packing 46. A spring 47 as an elastic body for urging the outflow prevention valve 42 upward is provided inside the lower chamber portion 38. A backflow stopper 49 as a safety valve for opening and closing a communication hole 48 formed in a front upper portion of the upper chamber 40 is provided near the hot water pipe 37 of the upper chamber 40, for example, which is made of a top insulator. The backflow stop 49 does not operate by an external operation like the outflow prevention valve 42, and normally sits on the front of the upper chamber 40 to open the communication hole 48. In the case where the container is tilted or falls, it moves to the communication hole 48 quickly by its own weight, closes the communication hole 48 and thus the water conduit 32, and prevents the outflow of hot water from the inner container 7 to the discharge port 6. I have.

Reference numeral 51 denotes a heater as a heating means mounted and fixed below the inner container 7, which is used for heating the liquid stored in the inner container 7 and for keeping the temperature of the hot water at a predetermined temperature. Used. Reference numeral 52 denotes a thermistor as a temperature detecting element which is in contact with a lower portion of the inner container 7. The thermistor 52 detects the temperature in the inner container 7, and is configured such that a control circuit 53 provided at the lower portion of the main body 1 controls the power cutoff of the heater 51 based on the temperature information from the thermistor 52. I have.

An operation panel 61 provided with various operation means and display means such as LEDs is provided above the protrusion 5 constituting the upper frame 4. The operation panel 61 includes a pair of tapping buttons 62 as a tapping operation unit that performs a push operation when tapping.
63 and a tapping lock lever 64 serving as an operation unit are provided so as to protrude from the seat member 65. Hot water lock lever
Reference numeral 64 denotes a function as a tapping lock operation section that locks the tapping buttons 62 and 63 so as not to move when the sliding operation is performed to one side, and prevents tapping from the inner container 7, and a sliding operation to the other side. Then, the tapping buttons 62 and 63 can be pushed and operated, and also function as a tapping lock release operation unit for releasing the lock so that tapping from the inner container 7 can be performed. The tap lock lever 64 is connected to the tap button 6.
A function as a lid lock operating section for locking the lid 8 in the closed state in conjunction with the locking operation of the valves 2 and 63, and a valve lock operating section for locking the outflow prevention valve 42 for opening and closing the water conduit 32 in the closed state. It also has the function as. Further, the tapping lock lever 64 functions as a lid unlocking operation unit for unlocking the closed state of the lid 8 in conjunction with the unlocking operation of the tapping buttons 62 and 63, and opens and closes the water guide channel 32. It also has a function as a valve unlocking operation unit that unlocks the closed state of the outflow prevention valve 42.

Inside the operation panel 61, there is provided a switch member which is electrically turned on and off in accordance with the pushing operation of the tapping buttons 62, 63.
The control circuit 53 controls the driving of the electric pump 33 based on the operation signals from the switch members 66 and 67, so that the hot water in the inner container 7 is supplied from the water conduit 32 to the discharge port 6. Is discharged to the outside. In the present embodiment, the tapping amount is switched between two levels, that is, a large tapping amount or a small tapping rate by using different tapping buttons 62, 63, but the tapping button may not be provided with such a function.

The tapping lock lever 64 is made of synthetic resin and is formed integrally with a plate-like slide member 71. Further, a horizontally long through hole 72 formed in the inner peripheral surface 4A of the upper frame 4 and a horizontally elongated through hole 73 formed in the lower portion of the outer peripheral surface 8A of the lid 8 pass through the rear side of the slide member 71. Thus, the lid lock arm 74 is provided integrally and movably. The lid lock arm 74 constitutes a child lock mechanism of the lid 8 together with the slide member 71, and when the tapping lock lever 64 also serving as a lid lock operating portion is locked, the lid opening / closing lever
It has a function of moving downward in the vicinity of the first locking piece 18 formed on the cover 10 to restrict the operation of the cover opening / closing lever 10 and thus lock the cover 8 in the closed state. As shown in FIG. 4, the tapping buttons 62 and 63 are integrally formed by a connecting member 75, and a pair of mounting holes 76 provided in the middle of the connecting member 75 The hot water tap buttons 62 and 63 are mounted at predetermined positions on the operation panel 61 by being fitted to the projections 77 provided on the back surface.

Each of the slide members 71 has a pair of slide holes 78 and 79 which are horizontally long, and a pair of guide claws 80 formed on the rear surface of the upper frame 4 come into contact with the slide holes 78, while the switch member is provided with a switch. Hot water buttons 62, 63 that can contact members 66, 67
Cross projections 62A and 63A are inserted into another slide hole 79. On the back surface of the upper frame 4, another guide claw 81 is formed so as to protrude and abut on the front end of the slide member 71. And
The slide member 71 is slidable in the directions of arrows B and B 'shown in FIGS. 4 and 5 together with the tapping lock lever 64 and the lid lock arm 74, located below the upper frame 4 and the tapping buttons 62 and 63. Provided. Reference numeral 82 denotes a valve shaft contact portion that is formed so as to protrude downward from the slide member 71 toward the lower side of the main body 1 and contacts the upper end surface of the valve shaft 44. The valve shaft contact portion 82 has a tapered surface 83 on one side and a flat surface 84 on the other side, and when a tapping lock lever 64 also serving as a valve lock operating portion is moved in the direction B ′, When the upper end surface of the valve shaft 44 comes into contact with the flat surface 84 and is pressed, the valve body 43 is opened against the urging force of the spring 47. Also, a slide member
On the upper surface of 71, a protrusion 85 is located around the slide hole 79.
(In the enlarged view of FIG. 4, a plurality of portions indicated by shading lines) are formed. Then, when the slide member 71 is moved in the direction B, the lower surfaces of the tapping buttons 62, 63 ride on the convex portions 85, and the tapping buttons 62, 63 cannot be pushed, that is, are locked. . FIG. 6 shows a tap lock lever.
The unlocked state in which the lock member 64 is moved in the direction B 'is shown in a cross-sectional view. In the drawing, the lock state in which the tapping lock lever 64 is moved in the direction B (see FIG. 7) and the positional relationship of the slide member 71 are the same. For convenience, the slide member is indicated by a two-dot chain line.
71 is shown.

A cover lower surface member 26 constituting a lower portion of the cover 8
The lower opening 91 of the steam passage 11 is formed at the bottom. Around the lower opening 91, a bulging portion 92 of the lid lower surface member 26 is formed, so as to cover the lower opening 91 and the bulging portion 92,
A bucket 94 for accommodating the weight-shaped valve element 93 in a vertically movable manner is attached and fixed to the lower surface of the lid lower surface member 26. Bucket 94
A cylindrical valve body accommodating portion 95 provided facing the lower opening 91 of the steam passage 11, and a plurality of radially formed steam intrusion holes 96 formed on the outer periphery of the valve body accommodating portion 95 facing the bulging portion 92. A valve body pressing hole 97 for pushing up the lower part (lower surface) of the valve body 93 by the internal pressure of the inner container 7;
A flange portion 98 on which the seat 93 is seated is formed. A predetermined space 99 is provided between the upper surface of the bucket 94 and the lower surface of the bulging portion 92 so that the valve element 93 accommodated in the valve element accommodating section 95 can move up and down.
Is formed. Then, when the valve element 93 moves to the lower surface side of the lid lower surface member 26 against its own weight, the lower opening 91 of the steam passage 11 is closed.

A lower opening 91 in the lower surface of the lid lower surface member 26
The entire circumference of the edge of the
There is provided a convex portion 102 formed with 101. When the upper portion of the valve 93 is in close contact with the projection 102, a pressurized space 103 is formed between the upper portion of the valve 93 and the lower surface of the lid lower surface member 26. Note that the contact surface 101 and the upper surface of the valve element 93 that is in close contact with the contact surface 101 are not necessarily required to be flat. For example, the contact surface
Even if the surface 101 is slightly uneven, the upper surface of the valve body 93 may be formed in a shape corresponding to the surface, and it is only necessary that both surfaces come into close contact with each other. The convex portion 102 is formed so as to completely close the lower opening 91 of the steam passage 11 when the upper portion of the valve element 93 is in close contact with the contact surface 101. 104 is a bent piece formed on the outermost periphery of the bucket 94, 105 is a mounting hole through which the bent piece 104 can be inserted, and the bucket 94 is inserted into the mounting hole 105 at the tip end thereof. By bending the portion, it is mounted on the lower surface of the lid lower surface member 26.

Next, the operation of the above configuration will be described. To boil hot water, first, the tapping lock lever 64 is slid in the direction B 'to release the locked state. At this time, the slide member 71 including the lid lock arm 74 also moves in the direction B 'together with the tapping lock lever 64, so that the tip of the lid lock arm 74 is moved from the first locking piece 18 of the lid opening / closing lever 10 to the lid 8 Leave outward along the circumference of the. Therefore, when the hand is inserted into the handle 16 of the lid lock lever 10, the lid lock lever 10 can be raised in the A direction, that is, upward, around the shaft 17 against the urging force of the lock claw spring 21, At this time, the upstanding piece 22 of the lock claw 20 is pushed inward by the second locking piece 19 of the lid opening / closing lever 10, and the claw portion of the lock claw 20
By separating the projection 23 from the projection 25 formed on the inner peripheral surface 4A of the upper frame 4, the lid 8 can be freely opened around the hinge shaft 9.

After the lid 8 is opened, water is poured into the inner container 7 and a power plug (not shown) is connected to an outlet and the power is turned on. The water in the inner container 7 is heated by the heater 51 and boils. . After that, the control circuit 53 detects the boiling state by the thermistor 52, and after the boiling, while detecting the hot water temperature by the thermistor 52, the control circuit 53 controls the power supply to the heater 51 so as to keep the temperature. In addition, in order to discharge hot water in the inner container 7, the tapping lock lever 64 is operated in the direction B 'as described above,
Release the locked state. With this, the hot water buttons 62, 63
Moves to the part other than the convex part 85 of the slide member 71,
Since a gap is formed between the upper frame 4 and the slide member 71 for vertically moving the hot water tap buttons 62, 63, when one of the hot water tap buttons 62, 63 is pushed and operated, one of the switch members 66, 67 is turned on. Can be switched off. At the same time, the upper end surface of the valve shaft 44 constituting the outflow prevention valve 42 comes into contact with the flat surface 84 of the valve shaft contact portion 82 and is pressed downward against the bias of the spring 47. Away from the hole 41, the outflow prevention valve 42 opens,
The water conduit 32 is in a communicating state. Therefore, when one of the tapping buttons 62, 63 is pushed, the switch members 66, 67 are pressed.
An operation signal is applied to the control circuit 53 from one of the
53 controls the drive of a motor (not shown) of the electric pump 33 at high speed or low speed. And the hot water in the inner container 7 is a headrace
32, that is, through the electric pump 33 from the outflow section 31,
Backflow prevention case with 34, glass pipe 35 and hole 41
After passing through 36, the hot water flows out of the discharge port 6 of the tapping pipe 37.

Also, during normal use, the valve body is subject to its own weight.
The lower portion (lower surface) of 93 is seated on the flange portion 98 of the bucket 94, and the upper portion (upper surface) of the valve element 93 and the lower opening of the steam passage 11 are formed.
A predetermined space 99 is formed between the space 91 and the space 91. Therefore, from the steam entry hole 96 formed in the bucket 94, through the space 99,
The steam enters the lower opening 91 of the steam passage 11, is discharged from the steam port 12 on the upper surface of the lid 8, and the internal pressure of the inner container 7 is kept substantially constant.

On the other hand, when the container body 1 is suddenly swung up or the lid 8 is opened immediately after boiling and the lid 8 is closed again, the valve element accommodated in the valve element accommodating portion 95 of the bucket 94 is opened.
93 moves to the lower surface side of the lid lower surface member 26. However, FIG.
As shown by the arrow, even if the upper portion of the valve body 93 is in close contact with the contact surface 101 of the convex portion 102 formed on the lower surface of the lid lower surface member 26, the upper portion of the valve body 93 and the lower surface of the lid lower surface member 26 do not contact each other. Pressurized space 10 between
3, the pressure in the inner container 7 acts on the lower part (lower surface) of the valve element 93 from the valve element pressing hole 97 and at the upper part (upper surface) of the valve element 93 via the pressurizing space 103. Also works. Therefore, the valve element 93 is quickly brought into contact with the contact surface 10 of the projection 102.
1 and an abnormal pressure increase in the inner container 7 is avoided. Apart from this, when the container body 1 falls down, the valve element 93 rolls in the valve element accommodating portion 95 of the bucket 94 and comes into close contact with the contact surface 101 of the convex portion 102, so that steam The lower opening 91 of the passage 11 is completely closed, so that leakage of hot water from the steam passage 11 to the outside can be reliably prevented.

When not in use, the tap lock lever 64 is operated in the direction B to switch to the locked state. In this case, since the lower surfaces of the tapping buttons 62 and 63 ride on the convex portions 85 of the slide member 71, there is no gap between the upper frame 4 and the slide member 71 for vertically moving the tapping buttons 62 and 63, and the tapping button
Pushing operation of 62 and 63 becomes impossible. When the tapping lock lever 64 is operated in the direction B, the tip of the lid lock arm 74 moves downward in the vicinity of the first locking piece 18 formed on the lid opening / closing lever 10. Even if a hand is inserted into the cover 16, the first locking piece 18 abuts against the distal end of the cover lock arm 74, so that the cover opening / closing lever 10 cannot be operated. Therefore, even if an infant or the like accidentally puts a hand on the handle 16 of the lid opening / closing lever 10, the lid 8 cannot be opened suddenly unless the tapping lock lever 64 is operated in the unlocking direction. Further, when the tapping lock lever 64 is operated in the direction B, the upper end surface of the valve shaft 44 comes into contact with the tapered surface 83 of the valve shaft contact portion 82, so that the valve body 43 is
And the outflow prevention valve 42 is closed. For this reason, a water conduit 32 extending from the outlet 31 of the inner container 7 to the discharge port 6.
In the meantime, the passage is completely shut off by the outflow prevention valve 42 on the way, and even if the container main body 1 is inclined at a relatively gentle speed, the hot water in the inner container 7 can be prevented from flowing out to the outside. . Also, when the container body 1 is suddenly tilted or overturned,
Regardless of the position of the tapping lock lever 64, the backflow stopper 49 closes the communication hole 48, thereby preventing the hot water from flowing out of the discharge port 6.

As described above, in the present embodiment, the container main body 1 is suddenly swung up, or the
Even if the lid 8 is opened and the lid 8 is closed again, since the pressurized space 103 is formed between the upper portion of the valve 93 and the lower portion of the lid 8, the valve 93 and the convex portion 102 are formed. When the contact surface 101 of the inner wall comes into a contact state, the pressure in the inner container 7 acts not only on the lower portion but also on the upper portion of the valve body 93, and the valve body 93 quickly contacts the contact surface 101 of the convex portion 102.
Break away from Also, when the container body falls down,
Since the valve element is in close contact with the contact surface 101 of the projection 102 and closes the lower opening 91 of the steam passage 11, leakage of hot water from the steam passage 11 to the outside can be reliably prevented.

That is, the container body 1, a bottomed cylindrical inner container 7 provided in the container body 1, a heater 51 as heating means for heating the liquid contained in the inner container 7, and an inner container 7
A lid 8 that opens and closes an upper opening of the container, a vapor passage 11 provided in the lid 8 that communicates the inside and outside of the inner container 7, and a lower opening 91 of the vapor passage 11 that is in close contact with a lower portion of the lid 8. In an electric hot water storage container having a vertically movable valve body 93, a convex portion 101 having a contact surface 102 formed on the upper portion of the valve body 93 is provided at the lower portion of the lid 8, and the upper portion of the valve body 93 and the lid are provided. Forming a pressurized space 103 between the lower part of the body 8 prevents an abnormal rise in pressure in the inner container 7, and provides an electric hot water storage container capable of reliably closing the steam passage 11 when the container body 1 falls. Obtainable.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the shape and weight of the valve may be appropriately changed in consideration of the internal pressure of the inner container and the like.

[0027]

According to the electric hot water storage container of the present invention, a container body, a bottomed cylindrical inner container provided in the container body, a heating means for heating a liquid contained in the inner container, A lid that opens and closes an upper opening of the inner container, a vapor passage provided in the lid that communicates inside and outside of the inner container, and a vertical movement that closes a lower opening of the vapor passage in close contact with a lower portion of the lid. In an electric hot water storage container having a flexible valve element, a convex portion having a close contact surface with the upper part of the valve element is provided at a lower part of the lid, and an upper part of the valve element and a lower part of the lid are provided. A pressurized space is formed between the inner container and the electric hot water container, which prevents abnormal pressure rise in the inner container and can reliably close the steam passage when the container body falls down.

[Brief description of the drawings]

FIG. 1 is a sectional view of an entire electric hot water storage container showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part viewed from a lower side of the upper cover.

FIG. 3 is a sectional view of a main part of the same.

FIG. 4 is a partially enlarged perspective view of a main part of the above.

FIG. 5 is a bottom view of a main part as viewed from below the operation panel.

FIG. 6 is a cross-sectional view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 7 is a sectional view of a main part when the tapping lock lever is operated in a locked state.

FIG. 8 is a perspective view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 9 is a perspective view of a main part when the tapping lock lever is operated in a locked state.

FIG. 10 is a cross-sectional view of a main part when the tapping lock lever is operated in an unlocked state.

FIG. 11 is a cross-sectional view of a main part when the tapping lock lever is operated in a locked state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 7 Inner container 8 Lid 11 Steam passage 51 Heater (heating means) 91 Lower opening 93 Valve element 101 Contact surface 102 Convex part 103 Pressurized space

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mikio Fujisaki 2570-1, Gosuda, Kamo-shi, Niigata Toshiba Home Techno Co., Ltd.

Claims (1)

[Claims] 1. A container main body, a bottomed cylindrical inner container provided in the container main body, a heating means for heating a liquid contained in the inner container, and an upper opening of the inner container being opened and closed. A cover, a steam passage provided in the cover communicating between the inside and the outside of the inner container, and a vertically movable valve body which is in close contact with a lower portion of the cover and closes a lower opening of the steam passage. In the electric hot water storage container, a convex portion having a close contact surface with the upper portion of the valve body is provided at a lower portion of the lid, and a pressurized space is formed between the upper portion of the valve body and the lower portion of the lid. An electric hot water storage container characterized in that: