JPH09313351A - Electric pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent hot water from flowing out from a hot water pouring port when a pot main body is tilted regardless of the direction. SOLUTION: Valve devices 33, 34 and 35 are provided in a hot water pouring path from the flow-out port of an inner container to the hot water pouring port 6. For the valve devices 33, 34 and 35, valve bodies 47, 52 and 57 are housed inside valve housing chambers 39, 40 and 41 whose lower surfaces are turned to slopes. When the pot main body 1 is tilted and the tilting direction of the slope is inverted, the valve bodies 47, 52 and 57 are rolled to a downstream side and valve seat ports are closed. The three valve devices 33, 34 and 35 for which the rolling directions of the valve bodies 47, 52 and 57 at the time of the close are a right direction, a left direction and a front direction respectively are provided.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric pot such as an electric insulation pot.

[0002]

2. Description of the Related Art In an electric pot, in order to prevent hot water from flowing out when it falls, a valve device for preventing backflow is provided in a hot water passage from an inner container for storing hot water to a hot water outlet. As this valve device, conventionally, for example, JP-A 1-259809
As described in Japanese Patent Publication, it is common to use a truncated cone-shaped valve element that moves up and down.
This valve body closes the horizontal valve seat opening. However, in such a conventional valve device, although it is possible to prevent the hot water or the water from flowing out at the time of falling, if the hot water or the water is tilted gradually or the pot body is moved, the hot water or the water will not flow. There is a risk that it will flow out naturally.

Further, Japanese Patent Laid-Open No. 1-277519 discloses a valve device in an electric pot in which a vertical valve seat opening is opened and closed by a spherical valve body. This valve device
Although it can be closed more sensitively, if there is only one valve device, the valve device may not operate and hot water or water may flow out depending on the tilting direction.

[0004]

As described above, in the conventional electric pot, since the valve device for tipping is to close the horizontal valve seat opening by the truncated cone-shaped valve body that moves up and down. If the pot body was only tilted, there was a risk that hot water or water would flow out. There is also a valve device that opens and closes a vertical valve seat opening by means of a spherical valve element. However, if only one valve device is provided, there is a risk that hot water or water will flow out, depending on the direction of inclination.

The present invention is intended to solve such a problem, and not only when falling, but also when the user holds the pot body or accidentally tilts the pot body from the tap hole. An object of the present invention is to provide a safe electric pot that can reliably prevent the liquid in the inner container from flowing out.

[0006]

The electric pot of the present invention comprises:
In order to achieve the above object, a pot body, an inner container provided in the pot body, heating means for heating the inner container, a tap hole provided outside the pot body, and the inner container From the hot water outlet to the hot water outlet, and a valve device that shuts off the hot water passage when the pot body is tilted. It is composed of a valve accommodating chamber that is inclined in a descending direction, a valve body that is rotatably accommodated in the valve accommodating chamber, and a valve seat opening that is provided downstream of the valve accommodating chamber and that is opened and closed by the valve element. A plurality of valve devices having different rolling directions of the valve element when closing the valve seat opening are provided.

With this construction, when the pot body is in the normal posture, the valve element of each valve device in the hot water outlet is located on the downstream side opposite to the valve seat opening due to the inclination of the lower surface of the valve storage chamber. And these valve seat openings are open. In this state,
The liquid in the inner container can be discharged from the tap hole through the tap passage. On the other hand, when the pot body tilts or falls, and the inclination of the lower surface of the valve storage chamber of any one of the valve devices becomes opposite to the normal time, the valve body moves to the downstream side to close the valve seat opening. This prevents the liquid from accidentally flowing out of the tap hole. Further, there are a plurality of valve devices in which the rolling directions of the valve body when closing the valve seat opening are different from each other, so that any of the valve seat openings can be closed even if the pot body is tilted in different directions. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the electric pot of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a pot body, and the pot body 1 is provided with legs 3 on a lower surface of an outer case 2 which constitutes an outer shell thereof. On the other hand, an upper frame 4 is fixed to the upper part of the outer case 2, and the upper frame 4
A protrusion 5 is provided on the front part of the. On the lower side of the projecting portion 5, a hot water outlet 6 to the outside of the pot body 1 is provided downward. Further, in the outer case 2, a bottomed cylindrical inner container 7 made of stainless steel or the like having an open upper surface is fixed. A lid 8 is provided on the upper side of the outer case 2 to open and close the upper surface opening of the inner container 7. The lid 8 is rotatably supported by a hinge 9 on the rear portion of the outer case 2. A lock button 10 for holding the lid 8 in a closed state is provided on the front portion of the lid 8.
Is provided. Further, the lid 8 is provided with a steam port 11 for discharging the steam generated in the inner container 7.

On the lower surface side of the bottom portion 7a of the inner container 7,
A heater 16 which is an electric heating means for heating the inner container 7.
And a temperature detecting element 17 such as a thermistor for detecting the temperature of the inner container 7. A control circuit 18 is provided below the inner container 7 in the pot body 1. The control circuit 18 controls the energization of the heater 16 on the basis of the temperature detected by the temperature detecting element 17 to control the inside of the inner container 7 to a boiling state or a heat retaining state. In the boiling state, heating is performed until the inside of the inner container 7 is in a boiling state, and in the heat retaining state, the inner container 7 is heated to an appropriate temperature and heat retaining is performed.

An outlet 21 is provided in the bottom 7a of the inner container 7, and the outlet 21 communicates with the outlet 6 through a passage 22 provided in the front of the pot body 1. are doing. In the tap water passage 22, the outlet 21 of the inner container 7 is connected to the inlet 24 of the electric pump 23 fixed to the bottom portion 7 a of the inner container 7. Further, the outlet 25 of the electric pump 23,
It is connected to the lower end of the glass tube 27 via a rubber joint tube 26. Further, the upper end of the glass tube 27 is connected to an inlet 29 of a valve device assembly 28 provided in the upper frame 4 via a rubber joint tube 30. An operation unit 31 including a push button switch for turning on / off the control circuit 18 and a push button switch for turning on / off the electric pump 23 is provided on the upper surface of the upper frame 4.

Inside the valve device assembly 28, the pot body 1
A first valve device 33, a second valve device 34, and a third valve device 35 for blocking backflow, which shut off the hot water passage 22 when the valve tilts, are incorporated. Next, the configurations of these valve devices 33, 34, 35 will be described. The outer shell of the valve device assembly 28 is constituted by a housing 36 which forms a part of the hot water outlet 22 inside. The inside of the housing 36 is vertically divided by a horizontal partition wall 37, and has a two-story structure. In addition, the housing 36
The first floor portion 36a in the inside is divided into front and rear by a vertical partition wall 38. Then, in the space portion of the first floor portion 36a below the horizontal partition wall 37, the portion behind the vertical partition wall 38 is the first valve storage chamber 39 in which the first valve device 33 is incorporated.
And a portion in front of the vertical partition wall 38 forms a second valve accommodating chamber 40 in which the second valve device 34 is incorporated. Further, the space above the horizontal partition wall 37, that is, the second-floor portion 36b in the housing 36, forms a third valve storage chamber 41 in which the third valve device 35 is incorporated. The inflow port 29 is provided on the left side of the first valve storage chamber 39. Further, the first valve storage chamber 39 and the second valve storage chamber 40 communicate with each other through a communication passage 42 on the right side of both valve storage chambers 39, 40. Further, the second valve storage chamber 40 and the third valve storage chamber 41 communicate with each other through a communication passage 43 that rises from the left portion of the second valve storage chamber 40. In addition, this communication passage 43
Is located in the middle portion of the third valve storage chamber 41, not in the end portion. Further, the tap hole 6 is provided on the front side of the third valve storage chamber 41.
Is provided.

A valve support frame 46 is formed in the first valve storage chamber 39, and a first valve body 47 made of an iron ball is rollable within a predetermined range in the valve support frame 46. It is stored.
In the valve support frame 46, the lower surface of the first valve accommodating chamber 39 is an inclined surface 48 that is inclined toward the left side, that is, toward the upstream side. A first valve seat 49 having a smaller diameter than the first valve body 47 and opened and closed by the first valve body 47 is formed in the most downstream portion of the first valve storage chamber 39. .

Further, in the second valve storage chamber 40, a valve support frame
51 is formed, and the second valve body 52 made of an iron ball is accommodated in the valve support frame 51 so as to be rotatable within a predetermined range. In the valve support frame 51, the lower surface of the second valve accommodating chamber 40 is an inclined surface that is inclined toward the right side, that is, the direction that descends toward the upstream side.
It is 53. A second valve seat opening 54, which has a smaller diameter than the second valve body 52 and is opened and closed by the second valve body 52, is formed in the most downstream portion of the second valve housing chamber 40. .

Further, a valve support frame 56 is formed in the third valve storage chamber 41, and a third valve body 57 made of an iron ball is rollable within a predetermined range in the valve support frame 56. It is stored.
The lower surface in the third valve storage chamber 41 is an inclined surface 58 that is inclined toward the rear side, that is, toward the upstream side. A third valve seat opening 59, which has a smaller diameter than the third valve body 57 and is opened and closed by the third valve body 57, is formed in the most downstream portion of the third valve storage chamber 41. .

Next, the operation of the above configuration will be described. When the lid 8 is opened and water is put into the inner container 7 and the lid 8 is closed, the operating portion 31 is operated to turn on the heater 16 to start boiling water.
The water inside is heated. Then, after the boiling of the water in the inner container 7 is completed, the temperature is automatically kept, and the water in the inner container 7 is kept at a predetermined temperature.

When the pot body 1 is in a normal posture,
As shown by the solid lines in the drawings, the valve bodies 47, 52, 57 of all the valve devices 33, 34, 35 have the inclined surface 4 on the lower surface of the valve storage chambers 39, 40, 41.
8, 53, 58 are located on the downstream side opposite to the valve seat openings 49, 54, 59, and these valve seat openings 49, 54, 59 are all open. In this state, operate the operation unit 31 to operate the electric pump.
When 23 is driven, the hot water in the inner container 7 passes through the outlet 21, the electric pump 23, the glass tube 27, and the valve device assembly.
Inflow port 29 of housing 36 of 28, first valve storage chamber 39, first valve seat port 49, communication passage 42, second valve storage chamber 40, first valve seat port 54,
It passes through the communication passage 43, the third valve storage chamber 41, and the third valve seat opening 59 in order, and flows out from the hot water outlet 6 to the outside.

On the other hand, when the pot body 1 tilts or falls, the tilt angle becomes a predetermined angle or more, and the tilted surface 4 of the valve storage chamber 39, 40, 41 of one of the valve devices 33, 34, 35.
When the inclination of 8, 53, 58 is reversed from the normal state, as shown by the chain line in the drawing, the valve bodies 47, 52, in the valve storage chambers 39, 40, 41 are
57 rolls to the downstream side and contacts the valve seat openings 49, 54, 59 and closes them. As a result, the hot water outlet 22 is blocked and water or hot water is prevented from accidentally flowing out from the hot water outlet 6.

When the pot body 1 is tilted to the right,
In the first valve device 33, the first valve body 47 rolls to the right to close the first valve seat port 49. Further, when the pot body 1 is tilted to the left, the second valve body 52 in the second valve device 34 rolls to the left to close the second valve seat 54. Further, when the pot body 1 is tilted forward, the third valve body 57 in the third valve device 41 rolls forward and closes the third valve seat 59. In this way, no matter which direction the pot body 1 is tilted, the valve seat openings 49, 54, 59 are closed in any of the plurality of valve devices 33, 34, 35. Therefore,
Regardless of the direction in which the pot body 1 is tilted, the hot water outlet 22 is reliably blocked. When the pot body 1 is tilted rearward, the valve devices 33, 34, 35 are not closed, but the tap hole 6 itself is above the inner container 7, so that hot water or There is no risk of leakage.

As described above, according to the configuration of this embodiment,
A valve device that shuts off the hot water outlet 22 when the pot body 1 is tilted
Since 33, 34, and 35 are designed to close the vertical valve seat openings 49, 54, and 59 by the valve bodies 47, 52, and 57 made of iron balls, not only when falling, but also with the pot body 1 to move. Even when the pot body 1 is tilted by mistake, hot water or water can be prevented from flowing out of the hot water outlet 6 to the outside. Moreover, the valve seat
By providing the three valve devices 33, 34, 35 in which the rolling directions of the valve bodies 47, 52, 57 when closing the 49, 54, 59 are the right direction, the left direction and the forward direction, respectively, the pot body 1 It is possible to reliably prevent water or hot water from leaking from the hot water outlet 6 regardless of the direction in which the hot spring tilts. Therefore, there is no risk of soiling the table or the floor, and it is possible to completely eliminate the risk of burns to the user, so that the table can be used safely.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made. For example,
In the above embodiment, the valve body 4 when closing the valve seat openings 49, 54, 59
Valve devices 33, 34, 35 with rolling directions of 7, 52, 57 different from each other
Although a total of three valve devices are provided, the number of valve devices is not limited to that. For example, it is possible to provide only two valve devices in which the rolling direction of the valve element when closing is the right front direction and the left front direction, respectively, and it is also possible to provide four or more valve devices to ensure the shutoff of the hot water outlet. May be further improved. Further, in the above-mentioned embodiment, the valve bodies 47, 52, 57 are iron balls, but the valve bodies are not limited to these, and any appropriate member can be used as long as it is a member that can roll to the extent that it does not move under hydraulic pressure. Can be used.

[0021]

According to the electric pot of the present invention, the valve device for shutting off the hot water discharge passage when the pot body is tilted is formed in a partition formed in the hot water discharge passage, and the lower surface is inclined in the direction of descending toward the upstream side. It consists of a valve housing chamber, a valve body that is rotatably housed in the valve housing chamber, and a valve seat opening that is provided on the downstream side of the valve housing compartment and that is opened and closed by the valve body. Since a plurality of valve devices with different rolling directions of the valve body are provided, the pot body does not depend on the direction in which it tilts, and not only when it falls, but also when holding the pot body, or by accidentally tilting the pot body. Even in this case, it is possible to reliably prevent the liquid in the inner container from flowing out from the tap hole, and the safety is improved.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing an embodiment of an electric pot of the present invention.

FIG. 2 is a perspective view of the same valve device assembly.

FIG. 3 is a horizontal sectional view of a first floor portion of the valve device assembly of the above.

4 is a sectional view taken along line IV-IV of FIG. 3 above.

5 is a sectional view taken along line VV of FIG. 3 above.

FIG. 6 is a horizontal sectional view of a second floor portion of the valve device assembly of the above.

7 is a sectional view taken along line VII-VII of FIG. 6 above.

[Explanation of symbols]

 1 Pot main body 6 Hot water outlet 7 Inner container 16 Heater (heating means) 22 Hot water passage 33 First valve device 34 Second valve device 35 Third valve device 39 First valve storage chamber 40 Second valve storage chamber 41 Third valve storage chamber 47 First valve body 48 Inclined surface (lower surface of the first valve storage chamber) 49 First valve seat opening 52 Second valve body 53 Inclined surface (of the second valve storage chamber) Lower surface) 54 Second valve seat opening 57 Third valve body 58 Inclined surface (lower surface of third valve storage chamber) 59 Third valve seat opening

Claims (1)

[Claims] 1. A pot main body, an inner container provided in the pot main body, heating means for heating the inner container, a tap hole provided outside the pot main body, and the outlet from the inner container. A hot water outlet that leads to the hot water spout and a valve device that shuts off the hot water discharge passage when the pot body is tilted. The valve device is formed in the hot water discharge passage in a direction in which the lower surface descends toward the upstream side. A valve storage chamber that is inclined to the valve storage chamber, a valve body that is rotatably stored in the valve storage chamber, and a valve seat that is provided downstream of the valve storage chamber and that is opened and closed by the valve body. An electric pot comprising a plurality of valve devices in which rolling directions of valve bodies when closing a seat are different from each other.