JPH0621400Y2 - Electric hot water storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an electric hot water storage container of a type in which the content liquid is pressurized and discharged by a bellows pump provided in an outer lid that opens and closes the mouth of the container. Is.

(Prior Art) In this type of electric hot water storage container, an air supply passage for sending pressurized air into the inner container and steam generated in the inner container to prevent abnormal pressurization are placed outside the lid. It is necessary to provide a steam passage for escape.

Conventionally, these passages are, for example, shown in Figs.
-47324) and FIG. 7.

In these conventional examples, the air supply passage a is formed between an inner lid c provided on the lower surface of the outer lid b and a lower plate f of a bellows pump e which is pushed by an upper surface pressing plate d of the outer lid b. The steam passage g is provided in the bellows pump lower plate f by the valve h that moves downward from the air supply passage a in association with the pushing operation.
The outer lid b through the branch hole j that is switched and closed with the air supply port i of
It is provided so that it can be pulled out to the rear of the upper surface.

A passage block m is arranged between the inner lid c and the bellows pump lower plate f to form the air supply passage a and the steam passage g. The passage block m may be composed of two members of a block body k and a block cover plate as shown in FIG. 6, or may be one member as shown in FIG.

(Problems to be solved by the invention) However, in the above-mentioned conventional example, the passage block m not only complicates the passage structure formed between the bellows pump lower plate f and the inner lid c, but also the passage block m is replaced by the bellows pump. There is a problem that it takes time and effort to manufacture, such as welding to the lower plate f and sealing the space between the lower plate f and the inner cover c and the periphery thereof.

When the passage block m itself is formed by combining a plurality of members, for example, in the case shown in FIG.
It is necessary to ultrasonically weld the block cover plate and the block cover plate, and the structure becomes complicated.

Furthermore, the steam passage formed in this way tends to be small and easy due to the complexity of the structure and the interlocking of each member, and when the internal solution tries to flow out through the steam passage when the vessel falls, There is a danger of passing through immediately and splashing outside immediately.

Therefore, the present invention solves such a problem and, while having a simple structure, can automatically and surely perform the air supply operation and the vapor discharge when the internal solution is not poured, and further, when the body falls down. It is an object of the present invention to provide an electric hot water storage container which can prevent the internal solution from going out to the outside through the steam passage, delaying the scattering to the outside by storing it in a part of the empty space of the steam passage.

(Means for Solving the Problems) In order to achieve the above-mentioned problems, the present invention provides an outer lid for opening and closing the mouth of a body and an inner container provided in the outer lid and accommodated in the body. An electric hot water storage container including a bellows pump that has an inner lid that opens and closes the mouth portion at the same time as opening and closing the outer lid, and that is operated from the outside by a pressing plate to send pressurized air into the inner container. A space is formed between the lower plate of the bellows pump and the inner lid to form a steam passage for the inner lid, and a steam escape port is formed in a part of the inner lid so that the steam passage for the inner lid communicates with the inner container. In order to store the inner solution flowing from the escape port at the time of falling of the container in the empty chamber, the inner lid steam passage is communicated to the outside of the outer lid through the outer lid steam passage provided in the outer lid, The bellows pump lower plate is bellowed on the part facing the steam escape port. A discharge pipe that discharges the compressed air from the rose pump is provided so as to move up and down in conjunction with the pressure plate, and the lower end opening of the discharge pipe is set to the vapor escape port by the downward movement when the pressure plate presses the bellows pump. It is characterized by being pressed and brought into a connected state.

(Operation) In the above-described configuration of the present invention, the steam escape port provided in the inner lid is defined as the inner lid steam passage between the lower plate of the bellows pump incorporated in the outer lid and the inner lid provided inside the outer lid. The inside of the inner container is opened as it is, and the outer lid vapor passage provided in the outer lid is opened directly to the outer surface of the outer lid. It is possible to prevent it from escaping and causing abnormal pressure rise. Also, since steam can be discharged to the outside from a predetermined position on the outer surface of the outer lid by the steam passage on the outer lid, it is necessary to avoid discharge from unexpected locations or locations near operations that are dangerous in use for safety in use. You can

Moreover, when the bellows pump is pressed by the pressing plate to inject the internal solution, the discharge pipe that discharges the compressed air from the bellows pump is moved downwards in conjunction with the pressing operation of the pressing plate and the vapor escape of the inner lid escapes. Since the lower end opening is pressed against the mouth to establish a connected state, the compressed air from the bellows pump can be reliably discharged into the inner container through the steam outlet regardless of the presence of the inner lid steam passage with a simple discharge passage configuration. Then, the inner solution can be pressurized so that it can be poured out to the outside.

In particular, the inner chamber that forms the steam passage for the inner lid that is formed between the lower plate of the bellows pump and the inner lid is used to store the inner solution that has flowed in from the vapor escape port when the vessel falls over. Therefore, even when the body falls, the inner solution is temporarily stored by the empty chamber forming the inner lid vapor passage, so the inner solution and the outer lid will not scatter from the vapor passages when the body falls. It can be prevented and the safety is high.

(Embodiment) The embodiment of the present invention shown in FIGS. 1 to 4 shows the case of a boiling type electric pot in which an inner container 3 having a heater 2 is housed in an outer case 1 as a hot water storage container.

The inner container 3 and the outer case 1 have a shoulder member 4 at the upper end, and a connecting member (not shown) and a bottom member 5 at the lower end.
Are connected to each other to form an electric pot body 6.

A discharge port 7 for discharging the content liquid to the outside of the shoulder member 3 is integrally assembled in a structure having a fall stop water valve 8 built-in,
An outer lid 11 is pivotally attached to the rear bearing 9 of the shoulder member 3 by a shaft 10 so as to be openable, closable and detachable so that the opening formed by the shoulder member 3 of the body 6 can be opened and closed. An inner lid 12 provided on the mouth 3a of the inner container 3 is attached to the lower surface of the outer lid 11, and is opened and closed integrally with the outer lid 11.

Inside the outer lid 11, a bellows pump 14 that is pressed by a pressing plate 13 exposed on the upper surface of the outer lid 11 and a lower plate 18 of the bellows pump that is arranged in the central portion of the bellows pump 14 are vertically penetrated. Valve 15 consisting of the discharge pipe 15a and the valve packing 15b
And are provided. The inside of the discharge pipe 15a is a passage communicating with the bellows pump 14.

The air pressurized by the pressing operation of the bellows pump 14 is
As shown in FIG. 2, from the through hole 16 that connects the passage in the discharge pipe 15a and the inside of the bellows pump 14 to the inner lid through the air supply port 17.
Twelve vapor escape ports 12a are sent into the inner container 3 to pressurize the content liquid.

Between the lower plate 18 of the bellows pump 14 and the inner lid 12,
A vacant chamber 19 is formed as an inner lid steam passage 19, and a steam escape port 12a formed in a part of the inner lid 12 allows the inner lid steam passage 19 to communicate with the inside of the inner container 3. The inner solution flowing from the escape port 12a is stored in the empty chamber 19, and the inner lid vapor passage 19 is communicated with the outer lid 11 through the outer lid vapor passage 20 provided in the outer lid 11, and a bellows pump is provided. The discharge pipe 15 located in a portion of the lower plate 18 facing the vapor escape port 12a is moved up and down in conjunction with the pressing plate 13. The pressing plate 13 is a bellows pump.
Lower end opening 15d of discharge pipe 15 due to downward movement when pressing 14
Is pressed against the vapor escape port 12a to establish a connected state.

The passage space 19 has a spacer 29 integrally formed with the lower plate 18 of the bellows pump, and the inner lid 12 is fixed with a screw so that the space between the lower plate 18 and the inner lid 12 of the bellows pump is stored. It is regulated to have enough space. In addition, the outer peripheral portion of the inner lid 12 is provided with a seal packing 30 that is in close contact with the mouth portion 3a of the inner container 3 and a lower plate 18 of the bellows pump.
It is in close contact with the outer peripheral protruding surface of.

During the pressing operation of the bellows pump 14, the protruding portion of the valve packing 15b comes into close contact with the vapor escape port 12a of the inner lid 12 as the valve 15 advances into the passage space, and the vapor escape port 12a of the inner lid 12 is discharged. Since it communicates only with the passage in the pipe 15a, pressurized air is reliably sent into the inner container 3 without leaking to the outside through the lower end opening 15d in which the check valve 15c is opened. In addition, the passage space 19 has the first portion where the bellows pump 14 is not pressed.
In the state shown in the figure, the inner lid steam passage 19 is provided for allowing the steam generated during the heat retention and boiling by the heater 1 to escape to the outside of the outer lid. That is, when the content liquid is not poured out, the vapor passes from the vapor escape port 12a of the inner lid 12 through the outer lid vapor passage 20 formed by the passage pipe 21 provided behind the bellows pump 14, and by the opening 11a on the outer surface of the outer lid 11. It is released to the outside and the inner container 3
I try not to raise the pressure abnormally.

A lead-out path 22 for guiding the pressurized content liquid to the upper outside of the inner container 3 is provided by connecting the base end to the bottom of the inner container 3, communicates with the inner container 3 at the bottom, and the upper end is opened to the outside. By doing so, the content liquid in the inner container 3 always flows in to maintain the same level, and the transparent tube 23
The liquid amount display section formed by

The pouring liquid is connected to the elbow connected to the upper end of the outlet 22.
It passes through the inside of 21 and is discharged to the outside through an inverted U-shaped pipe 24 and a liquid injection guide pipe 25 that receives the liquid discharged from the downward discharge port 7 from below.

A check valve 26 is provided in the passage pipe 21 that forms the outer lid steam passage 20, but the water shutoff valve 26 may not be temporarily stable at the time of a fall, and the liquid content may flow out.

However, since the vacant chamber 19 temporarily stores the internal solution that is about to flow out through the vapor escape port 12a and prevents the internal solution from immediately flowing out, the internal solution is sufficiently delayed from scattering to the outside through the vapor passage, It can also be prevented.

Further, in this embodiment, the bellows lower plate 18 is provided with an auxiliary communication hole 27 communicating from the empty chamber 19 to the inside of the bellows pump 14, and is normally closed by the weight valve 28.

As a result, the liquid content flowing out into the empty chamber 19 is
By pushing 28 open, the flow into the bellows pump 14 through the auxiliary communication hole 27 and the outflow to the steam passage 20 side can be further alleviated.

In short, in the present embodiment, the space between the lower plate 18 of the bellows pump 14 built in the outer lid 11 and the inner lid 12 provided inside the outer lid 11 is defined as the inner lid steam passage 19 and the steam escape port provided in the inner lid 12 is provided. While opening directly into the inner container 3 through 12a, the outer lid 11
With a simple passage structure that opens directly to the outer surface of the outer lid 11 through the outer lid vapor passage 20 provided in the inside, vapor generated from the inner solution in the inner container 3 escapes to the outside and prevents abnormal pressurization. be able to. In addition, steam is used in the outer lid steam passage 20.
Since it can be discharged to the outside from a predetermined position on the outer surface of the outer lid 11, it is possible to avoid the discharge from a position close to an unexpected portion or an operation portion which is dangerous in use, and it is possible to achieve safety in use.

Moreover, when the bellows pump 14 is pressed by the pressing plate 13 to inject the internal solution, the discharge pipe 15 that discharges the compressed air from the bellows pump 14 is moved downward in conjunction with the pressing operation of the pressing plate 13. Since the lower end opening is pressed against the vapor escape port 12a of the inner lid 12 to establish a connected state, the compressed air from the bellows pump 14 is vapor-released by the simple discharge passage configuration regardless of the presence of the inner lid vapor passage 19. It is possible to surely discharge the solution into the inner container 3 through the port 12a and pressurize the inner solution so that the solution can be discharged to the outside.

Particularly, by utilizing the empty chamber 19 forming the inner lid steam passage 19 formed between the lower plate 18 of the bellows pump 14 and the inner lid 12, the body 6
At the time of the fall, the internal solution flowing from the vapor escape port 12a
Since the internal solution is temporarily stored by the empty chamber 19 forming the inner lid vapor passage 19 even when the body 6 falls, the inner lid and the outer lid when the body 6 falls It is possible to prevent scattering of the inner solution from each of the vapor passages 19 and 20, and thus the safety is high.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the discharge pipe 15a is formed longer than that of the first embodiment, and the valve packing 15b has two parts, that is, a part of the discharge pipe 15a attached to the lower plate of the bellows pump and a lower end opening 15d thereof. Separately installed. Further, a member for forming the passage pipe 21 behind the bellows pump 14 in the outer lid steam passage 20 is not required, and the passage pipe 21 is formed by suspending a part of the outer surface plate of the outer lid 11. Since the inner lid 12 is formed by the same press molding as the conventional example shown in FIG. 7, and is provided with a steam escape port 12a in the central part except for the drilling process, Conventional parts can be effectively used.

In the second embodiment, air supply for pressurizing the content liquid and steam removal for preventing abnormal pressure increase are performed in the same route as in the first embodiment, but a tongue piece covering the lower end opening 15d is used. Unlike the check valve 15c of the first embodiment, 15e is vertically movable. At the time of pouring out the content liquid, the downward movement of the valve 15 causes the protruding portion of the valve packing 15b on the discharge side to come into close contact with the peripheral portion of the vapor escape port 12a to shut off between the passage space 19 and the outside of the outer lid 11, During non-pouring, steam is mainly discharged from the steam passage 20 to the outside of the outer lid 11. In this embodiment, the check valve provided in the passage 21 is omitted. The third embodiment of the present invention shown in FIG.
The air supply port 17 and the steam passage 20 are provided so as to serve as the inside of the discharge pipe 15a. Also, the valve packing 15b is the lower plate 18 of the bellows pump.
The tongue piece 15a, which is attached to the opening at the central portion of the above and covers the discharge port 15c, and which is integrally formed with the discharge port 15c, functions similarly to the second embodiment. In the present embodiment, the vapor in the inner container 3 passes upward through the opening of the inner lid 12a through the inside of the discharge pipe 15a,
It is designed to be discharged to the outside through a steam vent hole 30 provided in the pressing plate 13 of the outer lid 11, and the passage 21 behind the bellows pump 14 is not provided unlike the first and second embodiments. Therefore, it is possible to prevent the content liquid from flowing out to the outside through the rear steam passage 20 when the vessel body 6 is accidentally tumbled, and the labor for specially providing the steam passage 20 is omitted.

(Effect of the Invention) According to the present invention, the pipe between the lower plate of the bellows pump built in the outer lid and the inner lid provided inside the outer lid is used as the inner lid vapor passage,
The inside of the inner container has a simple passage structure that opens directly into the inner container through the vapor escape port provided in the inner lid and opens directly to the outer surface of the outer lid through the outer lid steam passage provided in the outer lid. It is possible to prevent vapor generated from the solution from escaping to the outside and causing abnormal pressurization. Also, since steam can be discharged to the outside from a predetermined position on the outer surface of the outer lid by the steam passage on the outer lid, it is necessary to avoid discharge from unexpected locations or locations near operations that are dangerous in use for safety in use. You can

Moreover, when the bellows pump is pressed by the pressing plate to inject the internal solution, the discharge pipe that discharges the compressed air from the bellows pump is moved downwards in conjunction with the pressing operation of the pressing plate and the vapor escape of the inner lid escapes. Since the lower end opening is pressed against the mouth to establish a connected state, the compressed air from the bellows pump can be reliably discharged into the inner container through the steam outlet regardless of the presence of the inner lid steam passage with a simple discharge passage configuration. Then, the inner solution can be pressurized so that it can be poured out to the outside.

In particular, the inner chamber that forms the steam passage for the inner lid that is formed between the lower plate of the bellows pump and the inner lid is used to store the inner solution that has flowed in from the vapor escape port when the vessel falls over. Therefore, even when the body falls, the inner solution is temporarily stored by the empty chamber forming the inner lid vapor passage, so the inner solution and the outer lid will not scatter from the vapor passages when the body falls. It can be prevented and the safety is high.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a first embodiment of the present invention, FIG. 2 is a vertical sectional side view showing an essential part thereof, FIG. 3 is a vertical sectional side view showing a second embodiment, and FIG. A vertical sectional side view showing an embodiment,
FIG. 5 is a vertical cross-sectional side view showing a main part of a conventional example, FIG. 6 is a partially exploded perspective view, and FIG. 7 is a vertical cross-sectional side view showing another main part of the conventional example. 3 …… Inner container 11 …… Outer lid 12 …… Inner lid 12a …… Steam escape port 13 …… Pressing plate 14 …… Bellows pump 15a …… Discharge pipe 15b …… Valve packing 15d …… Lower end opening 18 …… Bellows Bottom plate of pump 19 …… Vacancy, inner lid steam passage 20 …… Outer lid steam passage

Claims (1)

[Scope of utility model registration request] 1. An outer lid for opening and closing a mouth of a body, and an inner lid provided on the outer lid for opening and closing the mouth of an inner container housed in the body simultaneously with opening and closing of the outer lid. In an electric hot water storage container having a bellows pump that is pressed from the outside by a pressing plate into the outer lid and sends pressurized air into the inner container, a space is provided between the lower plate of the bellows pump and the inner lid. Form the inner lid steam passage, forming a steam escape port in a part of the inner lid so that the inner lid steam passage communicates with the inner container, and when the vessel falls, the inner solution flowing from the steam escape port The bellows pump is stored in the empty chamber, and the inner lid steam passage is communicated with the outside of the outer lid through the outer lid steam passage provided in the outer lid. The discharge pipe that discharges the compressed air is linked to the pressing plate It is provided so as to move up and down, and the lower end opening of the discharge pipe is pressed against the steam escape port by the downward movement when the pressing plate presses the bellows pump to establish a connected state. Hot water storage container.