JP2000333838A - Hot water storage container - Google Patents

Abstract

(57) [Problem] To make it possible to selectively use an electric pump and a manual pump without influence of other necessary functions by a simple and inexpensive passage structure. SOLUTION: A steam passage 9 which is provided in a lid and allows the steam in the inner container 3 to escape, one outlet passage 5 for guiding the liquid in the inner container to the outside,
Water shutoff valves 23 and 38 for closing the passages 9 and 5 in the steam passage 9 and the outlet passage 5 when the body 13 rolls over to prevent the contents liquid from flowing out, and an electric pump for discharging the contents liquid through the outlet passage 5 14, a manual pump 114 which pressurizes and discharges the content liquid from the side of the lid 8 or the container 13 and discharges the content liquid by the electric pump 14, and which pushes and discharges the content liquid.
The switching means 117 is provided for switching the interior of the inner container 3 between the manual pump 114 and the steam passage 9 in conjunction with the pressurizing operation of the pressure vessel 14 and the release thereof, thereby achieving the above object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water storage container in which a liquid is stored, covered with a lid, heated and kept warm, and the stored liquid is discharged to the outside by a pump through a lead-out passage. For example, the present invention is applied to a household electric pot.

[0002]

2. Description of the Related Art In an electric pot for home use, automatic discharge by an electric pump, selection of warming temperature, energy saving warming while sleeping or going out, water heating and warming by setting a timer, detection and display of electric fluid volume, Various functions such as setting of various other use modes utilizing electric control have been achieved, which is convenient for use.

On the other hand, the electric pot loses its convenience at a place where there is no power supply. Even if the user attempts to use the content liquid in the hot water that is boiling or keeping the temperature temporarily without power, the stored liquid cannot be discharged.

[0004] The applicant uses a primary battery or a secondary battery as a second power source in an electric pot, and discharges the stored liquid by operating an electric pump using the second power source when there is no commercial power source. And make it available for use.

Japanese Patent Application Laid-Open No. 08-117102 discloses an electric pot in which an electric pump and a manual pump are used in combination, and where there is no power supply, the manual pump is operated to discharge and use the stored liquid. To disclose the technology.

[0006]

However, in the prior art disclosed in the above-mentioned publication, two types of lead-out paths are set to selectively use the electric pump and the manual pump, and the electric pump and the manual pump are switched. Since the two outlet paths are automatically switched by the valve, the structure is complicated and expensive.

An object of the present invention is to provide a hot water storage container in which an electric pump and a manual pump can be selectively used by a simple and inexpensive passage structure without being affected by other necessary functions.

[0008]

Means for Solving the Problems In order to achieve the above object, a hot water storage container according to the present invention is capable of boiling water and keeping heat in a state in which a liquid is put into an inner container housed in a container and a lid of the container is closed. The hot water is stored, and the stored liquid is discharged to the outside by a pump. The steam passage provided in the lid and allowing the steam generated in the inner container to escape to the outside is connected to the inner container. One outlet path for guiding the stored liquid to the outside, a steam path and an outlet path are provided separately, and when the container is rolled over, the steam path and the outlet path are closed to allow the stored liquid to pass through the steam path and the outlet path. A water stop valve for preventing the liquid from flowing out through the container, an electric pump provided in the inner container or the outlet passage and discharging the stored liquid through the one outlet passage, and an electric pump provided on the side of the lid or container. By pressurizing the stored liquid A manual pump for extruding and discharging the content liquid by sharing one outlet path for discharging by an electric pump, and a manual pump and a steam passage in the inner container in conjunction with the pressurizing operation and the release of the pressurizing operation by the manual pump. One of the features of the present invention is that a switching means is provided for switching to and.

In such a configuration, the switching means allows the inner container to switch between the manual pump and the steam passage in conjunction with the pressurized discharge operation by the manual pump and the release thereof, so that when the manual pump is not used, the contents are switched. The steam generated inside the vessel escapes through the steam passage to the outside to prevent abnormal pressure rise and hot water pushing out. The stored liquid is discharged by an electric pump and one of its outlets, and the stored liquid is added by a manual pump, while preventing water from being stored by a water stop valve provided for each. Pressurizing and discharging the electric pump by using one lead-out path can be achieved by a simple passage structure, and the stored liquid stored in the hot water can be discharged either manually or manually. Because it so that, become what the structure is simple and inexpensive.

In the hot water storage container of the present invention, the liquid is put into a vacuum double container housed in a container, and the liquid is stored by boiling and keeping the temperature in a state where the lid of the container is closed. Is discharged to the outside by a pump, a steam passage provided on the lid to allow steam generated in the inner cylinder of the vacuum double container to escape to the outside, and hot water connected to the inner cylinder of the vacuum double container. , And a steam passage and an outlet passage that are separately provided to guide the steam passage to the outside when the container body rolls over.
A water shutoff valve for closing the outlet path and preventing the stored liquid from flowing out through the steam passage and the outlet path; and a hot water storage valve provided in the vacuum double container or the outlet path to store the hot water through the one outlet path. An electric pump for discharging, a manual pump for extruding and discharging by sharing one lead-out path for discharging by the electric pump by pressurizing the stored liquid provided in the lid or the container and pressurizing the hot liquid; Another feature is that there is provided switching means for switching the interior of the inner container to a manual pump and a steam passage in conjunction with the pressurizing operation and the release of the pressurizing operation.

In such a configuration, the switching means causes the inner container to switch between the manual pump and the steam passage in conjunction with the pressurized discharge operation by the manual pump and the release thereof, so that the vacuum is used when the manual pump is not used. The steam generated inside the inner cylinder of the double container is released to the outside by the steam passage to prevent abnormal pressure rise and pushing out of the stored hot water. Each of the water shut-off valves prevents the contents from flowing out and prevents the hot water from being stored, while maintaining the vacuum space of the vacuum double container and the space between the vacuum double container and the outer case of the body. By securing hot-water storage with high thermal insulation that demonstrates high heat insulation,
It is also convenient to keep warm and cool without using a heater, while discharging the stored liquid by an electric pump and its one lead-out path, and pressurizing the stored liquid by a manual pump. Extrusion and discharge that share one lead-out path of the electric pump can be achieved with a simple passage structure, and the stored liquid can be discharged and used either electrically or manually, resulting in a simple and inexpensive structure.

In the hot water storage container of the present invention, the liquid is put into a vacuum double container, and while the lid is closed, the liquid is heated and kept warm to store the hot water, and the stored content liquid is discharged to the outside by a pump. In such a configuration, a steam passage provided in the lid to allow steam generated in the inner cylinder of the vacuum double container to escape to the outside, and one derivation connected to the inner cylinder of the vacuum double container to guide hot water storage to the outside Water passage, a steam passage, and an outlet passage, which are individually provided to close the steam passage and the outlet passage when the container rolls over, to prevent the stored liquid from flowing out through the steam passage and the outlet passage. A valve, an electric pump provided in the vacuum double container or the outlet passage for discharging the stored liquid through the one outlet passage, and a hot water provided on the lid or the vacuum double container side and stored. The electric pump It is the current one, characterized in that a manual pump for extruding discharged through one outlet passage for performing discharge with.

In such a configuration, the switching means causes the inner container to switch between the manual pump and the steam passage in conjunction with the pressurizing / discharging operation by the manual pump and the release thereof, so that the vacuum is used when the manual pump is not used. Steam generated in the inner cylinder of the double container is released to the outside by the steam passage, preventing abnormal pressure rise and pushing out of the stored hot water. Each of the water shut-off valves is provided to prevent hot water from being stored. The electric pump is constructed by pressurizing the stored liquid by a manual pump, while keeping the temperature and cooling cool without using a heater.
Extrusion and discharge that share one outlet path can be achieved with a simple passage structure, and the stored liquid can be discharged and used either manually or electrically, resulting in a simple and inexpensive structure.

In these, if the diameter of the discharge port of the electric pump is smaller than the diameter of the suction port, the speed of the hot water stored in the electric pump is increased and sent out to the outlet path, and the hot water is stored with a small load and with low power consumption. The content liquid can be pumped up to the required height and discharged.

[0015] Also, when the outlet passage is set so that the cross-sectional area of the passage decreases from the inflow port to the discharge port side, partially or continuously, the cross-sectional area of the passage decreases toward the discharge port. In the moving region, the speed of the content liquid to be discharged can be increased to further reduce the discharge load of the pump, thereby reducing power consumption or operating force.

If the cross-sectional area of the passage of the water stop valve is set to be larger than the cross-sectional area of the passage at the outlet of the water stop valve, the passage resistance when the discharged liquid flows through the water stop valve in the outlet path is reduced. It is possible to reduce the discharge load of the pump by increasing the flow velocity at the time of the outflow to the outflow path while making it smaller than the subsequent outflow path, thereby reducing power consumption or operating force.

Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination in various combinations as far as possible.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to FIGS.

(Embodiment 1) Embodiment 1 is shown in FIG.
As shown in (1), the content liquid is heated by the heater 4 and stored, and the stored content liquid can be discharged to the outside through one lead-out passage 5 by selectively using the electric pump 14 and the manual pump 114 so as to be used. This is an example of the case of an electric pot. However, the present invention is not limited to this, and can be applied to general hot water storage containers that store various hot water and use it for various uses.

The electric pot according to the first embodiment has a housing 13
, A heater 4 for heating the content liquid in the inner container 3, a lead-out path 5 for guiding the content liquid to the outside, and an electric pump 14 for discharging the content liquid through the lead-out path 5
A lid 8 for closing the opening 7 of the inner container 3, a vapor passage 9 for discharging steam generated in the inner container 3 to the outside through the inside of the lid 8, and a lid 8 provided inside the lid 8, A manual pump 114 for pressurizing the inner solution therein and forcing it out into the outlet passage 5 and discharging the same, and separately provided in the outlet passage 5 and the steam passage 9 so that the outlet passage 5 and the steam passage 9 are provided when the body 13 rolls over.
Shut off valve 3 to close and prevent liquid from leaking to the outside
The water shutoff valves of the water shutoff valves 8 and 23 and the outlet passage 5 are also provided with a water shutoff valve 38a for preventing the contents liquid that does not close the outlet passage 5 from flowing out when the body 13 is tilted forward.

The inner container 3 is housed in an outer case 12 made of synthetic resin as in the embodiment shown in FIG. 1 to constitute an electric hot water storage container 13. However, the body 13 of the inner container 3 may be configured to be exposed to the outside. In any case, the liquid content of the inner container 3 is heated from the outside by the heater 4 and stored, and the electric pump 14 or the manual pump 114
Is discharged to the outside through the outlet path 5 and used. A rising portion that rises outside the body of the inner container 3 of the lead-out path 5 is formed as a liquid amount display pipe 5a made of a material such as transparent or translucent glass or resin from the outside through the liquid amount display window 12a of the outer case 12. They are visible.

The inner container 3 has an outer flange 3d formed at the outer edge of the opening 7 on the upward step of the shoulder 16 of the container 13, facing the rising wall following the step. The outer case 12 is made of synthetic resin and has a bottom and a body integrally formed. However, if the body is made of metal and the body is made of metal,
The bottom, which tends to be complicated in structure and shape, is preferably made of synthetic resin. The outer case 12 may be made of a synthetic resin for both the bottom and the body, or may be divided as necessary in view of the molding and the whole assembly.

The shoulder portion 16 of the body 13 is a synthetic resin shoulder member 16 fitted to the upper end of the outer case 12, and an opening 18 formed by the shoulder member 16 is provided with the lid 8 described above. 18 is opened and closed together with the opening 7 of the inner container 3. For opening and closing, the lid 8 is pivotally supported by a bearing 19 provided at the rear of the shoulder member 16 so that the lid 8 can be attached and detached by a hinge pin 22. In the operation of opening and closing the lid 8 by opening and closing by rotation about the hinge pin 22, the hinge pin 22 is attached to the bearing portion 19 at the open position where the lid 8 is out of the fitting position with the opening 7 of the body 13. Can be inserted or pulled out through the inward slit.

The steam passage 9 for letting the steam from the inside of the inner container 3 of the cover 8 escape to the outside has a steam outlet 9a formed on the upper surface of the cover 8, and a steam inlet 9b formed from the inner cylinder 3a to the cover 8 on the lower surface. ing. A safety path 9c is provided in the middle of the steam passage 9 to temporarily store or bypass the content liquid when the container 13 rolls over and the content liquid enters, thereby delaying the liquid from reaching the steam outlet 9a. This makes it possible to take measures such as raising the container 13 before the container 13 rolls over and the content liquid flows out through the vapor passage 9 to the outside. Also,
In the embodiment shown, the water shutoff valve 23 is provided at one location just inside the steam inlet 9b. However, you can have more than one.

A lock member 25 is provided at the front of the lid 8 for engaging the locking portion 24 on the shoulder member 16 side at the closed position to lock the lid 8 at the closed position, and when the lid 8 is closed. The spring 26 always projects to the lock position by the bias of the spring 26 so as to automatically engage with the locking portion 24. Correspondingly, the lid 8 is provided with a lock release member 27 for releasing the lock by retreating the lock member 25. The lock release member 27 is connected to the lid 8 by a shaft 29 as shown in FIG.
The lock member 25 is retracted against the spring 26 by pushing down the front end with a thumb or the like and rotating counterclockwise to release the lock.
Next, the unlocking member 2 raised by the unlocking operation
By lifting the rear end of the lock 7 with another finger, the unlocked lid 8 can be lifted and opened.

The electric pump 14 is a centrifugal pump provided in the middle of the outlet 5 and located immediately below the inner container 3. The electric pump 14 transfers the liquid contained in the hot water stored in the inner container 3 through the outlet 5. It is sent to the discharge port 5d facing the outside, and discharged from the discharge port 5d to the outside for use. Manual pump 11
Reference numeral 4 denotes a bellows pump provided in the lid 8,
Is pressed against the restoring spring 116 by the pressing plate 115 facing the upper surface of the container, the pressurized air is sent into the inner container 3, the content liquid is pressurized, and the liquid is pushed out to the outlet passage 5 and discharged.

Since the discharge by the manual pump 114 is performed by pressurizing the internal solution, the vapor passage 9 needs to be closed.
If the steam passage 9 is always closed, the internal pressure rises abnormally, so that the discharge port 114a of the manual pump 114 and the steam passage 9 are required in conjunction with the pressing operation of the manual pump 114 and the release of the pressing operation. A passage switching valve 117 as switching means for selectively communicating with the inner container 3 is provided in the bellows 114b. Bellows 114
b, an intake valve 118 is provided. When the restoration is performed by the restoration spring 116, the intake port 114 c is opened to open the bellows 114.
The air can be sucked into b, and at the time of the pressing operation by the pressing plate 115, the air inlet 114c is closed to prevent the air from leaking to the outside. However, neither the electric pump 14 nor the manual pump 114 has any particular pump type.

In the space between the bottom of the outer case 12 and the bottom of the inner container 3, together with the electric pump 14,
And a circuit box 32 that accommodates a control board 129 for controlling the energization of the electric pump 14. In the illustrated embodiment, the circuit box 32 is formed integrally with the opening at the bottom of the outer case 12, but may be formed separately from the bottom and screwed. Although the circuit box 32 is open downward, a lid for closing the circuit box 32 may be provided. A temperature sensor 33 is applied to the center of the bottom of the inner container 3 from below, and detects the temperature of the content liquid at each time, and obtains temperature information when heating and controlling the content liquid in the water heater or the heat retention mode.

An operation panel 35 is provided on the upper surface of the beak-like projection 34 projecting from the front part of the shoulder member 16 of the body 13 so that an operation unit such as mode setting, a display corresponding to the operation, or an operation state can be displayed. The display shown below is performed. Below the operation panel 35, an operation board 36 for transmitting and receiving signals corresponding to the operations and displays is provided. The lead-out path 5 rises between the inner container 3 and the outer case 12 to form a liquid amount indicating pipe 5a having the same liquid level as the inner container 3, and then the beak-shaped protrusion 34 of the container 13 and the outer case 12 side. A portion interposed between the pipe cover portion 37 and the other portion constitutes an inverted U-shaped unit 5c, and a portion connected to the rising portion of the lead-out path 5 of the unit 5c is provided with the water stop valve 38 at the time of the rollover and the tilting forward. The water stop valve 38a and the discharge port 5d are provided. The discharge port 5d is opened downward to the outside through a bottom opening of the pipe cover 37 and a discharge port cover 41 attached to the opening from below.

A cover plate 42 is applied to the opening at the bottom of the outer case 12 from below by screwing or partially engaging the cover plate 42 so that a rotary seat ring 43 can rotate around the outer periphery of the cover plate 42. When the container 13 is fixed on a table surface or the like, it can be rotated slightly on the rotary seat ring 43 to change its direction.

The lid 8 is formed of a resin upper plate 51 and a lower plate 52 so as to be hollow, and an upper cover 53 containing a manual pump 114 therein.
A basic structure is formed by an inner lid 55 made of metal such as stainless steel screwed to the lower surface of the upper lid 53 with a fitting screw 54 or the like.
The seal lip 56a of the seal packing 56 sandwiched between the inner container 3 and the inner container 3 is pressed against the upper surface of the rim of the opening 7 so that the opening 7 is closed tightly. Thereby, it is possible to prevent steam or heat from escaping outside through the space between the opening 7 of the inner container 3 and the inner lid 55.

In the electric pot according to the first embodiment, the inner container 3 connects the manual pump 114 with the steam in response to the pressurized discharge operation by the manual pump 114 and the release thereof. Since the steam is switched to the passage 9, the steam generated in the inner container 3 is released to the outside by the steam passage 9 to prevent an abnormal pressure rise or pushing out of the hot water. While the path 5 prevents the hot water from flowing out when the body 13 rolls over, the water shutoff valves 38, 38a, and 23 are provided to prevent the hot water from being stored. The discharge by one outlet path 5 and the push-out discharge by sharing one outlet path 5 of the electric pump 14 by pressurizing the content liquid stored in the hot water by the manual pump 114 are simplified. Was achieved in passage structure, so to be able to use even discharge even manually electric liquid contents are stored in the hot, be something structure is inexpensive simple.

In the first embodiment, the inner container 3 housed in the container 13 is further composed of a vacuum double container 3 in which an inner cylinder 3a and an outer cylinder 3b are combined to form a vacuum insulation space 3d0 between them.
c. The inner cylinder 3a and the outer cylinder 3b are both made of stainless steel, which is a metal having low thermal conductivity, but the invention is not limited to this. Can also be improved.

Thus, the inner cylinder 3 of the vacuum double container 3c is
In addition to preventing abnormal pressure rise and pushing out of the hot water by preventing the steam generated in a from leaking to the outside through the steam passage 9, the hot water flows out when the steam passage 9 and the lead-out passage 5 are rolled over. To the shutoff valves 38, 38a, 23 respectively.
In this way, high heat insulation was exhibited by the vacuum insulation space 3d0 of the vacuum double container 3c and the space 39 between the vacuum double container 3c and the outer case 12 of the container 13 while preventing hot water storage and ensuring the safety of hot water storage. Ensure the hot water storage with good thermal efficiency
In addition, the electric pump 14 and the manual pump 114 can be used separately by using a simple passage structure that shares only one lead-out passage 5, and the hot water storage can be performed manually or electrically. However, it can be used by discharging and has a simple and inexpensive structure. The opening 7 formed by the inner cylinder 3a is subjected to a drawing process to narrow the opening of the inner cylinder 3a inward, and the opening 3d1 inward of the vacuum adiabatic space 3d0 allows the opening 7 to pass through the lid 8 from the opening 7. The escape of heat can be suppressed. In the embodiment shown in FIGS. 1 to 3, the diameter of the discharge port 14a of the electric pump 14 is smaller than the diameter of the suction port 14b. As a result, the speed of the hot water stored in the electric pump 14 can be increased and sent out to the outlet path 5, and the hot water can be pumped up to the required height with a small load and with low power consumption and discharged.

The outlet path 5 has a passage cross-sectional area from the inflow port 5e to the discharge port 5d, like the path from the liquid amount indicating pipe 5a to the discharge port 5d shown in FIGS. Even in the case where it is set so as to be reduced partially or continuously, in a region where the cross-sectional area of the passage decreases toward the discharge port 5d, including the above-described passage condition in the electric pump 14, By increasing the speed, the discharge load of the electric pump 14 and the manual pump 114 can be further reduced, and power consumption or operating force can be reduced.

Since the passage cross-sectional area of the internal space 38b such as the water stop valve 38 is set to be larger than the passage cross-sectional area of the outlet 38c such as the water stop valve 38, the discharged hot water is stored in the outlet passage 5. While the passage resistance when passing through the water stop valve 38 and the like is smaller than that of the subsequent outlet passage 5, the flow rate at the time of flowing out to the outlet passage 5 is increased to increase the electric pump 14 and the manual pump 1.
14 can be reduced, and power consumption or operating force can be reduced. Each valve body 38 of the water stop valve 38, 38a
Each of the first and second 382 is biased or deviated from the discharge flow path of the hot water storage in the internal spaces 38b and 38d of the water shutoff valves 38 and 38a. Thus, the discharge load of the electric pump 14 and the manual pump 114 can be reduced, and power consumption or operating force can be reduced.

As shown in FIG. 3, the lid 8 is provided with a lock member 121 for locking the pressing operation of the manual pump 114 and releasing the lock, so as to prevent tampering operation by infants. I have. The operation panel 35
A hot water supply key 122 for operating the electric pump 14, a hot water supply lock key 123 for disabling or releasing the operation function of the hot water supply key 122, and a heat retention temperature selection key 1
24, hot water supply and descaling key 125 for switching and setting reboiling and descaling in a rotary manner, a cup timer timer key 126 for setting the finishing time of instant noodles and the like and notifying the finishing time, and the operation of the electric pot A display section 127 indicating the state is provided.

(Embodiment 2) In Embodiment 2, as shown in FIG. 4, a metal detachable container 1 is placed in a vacuum double container 3c.
The opening 31 is placed on the opening edge 7a of the vacuum double container 3c, and is supported so as to be detachable from above the opening 7. Removable container 131
In the state where is mounted, the lid 8 closes the opening 131b of the detachable container 131 together with the opening 7 of the inner cylinder 3a. Accordingly, the liquid stored in the attached detachable container 131 is not heated by the vacuum double container 3c and the heater 4 utilizing the heat insulating function of the spaces 132, 39 between the detachable container 131, the vacuum double container 3c, and the outer case 12. Can keep warm and cool. In particular, there is an advantage that the problem of dew condensation around the detachable container 131 at the time of keeping cold does not reach the heater 4, and an influence due to a difference in odor between the liquid stored in the inner container 3 and the liquid handled in the removable container 131. You can use them properly.

In addition, the bottom 133 of the detachable container 131 fits into the connection port 133 between the outlet path 5 or the electric pump 14 and the inner container 3, specifically, the inner cylinder 3 a when the inner container 3 is mounted. Since the connection port 134 in the connected state is provided, the liquid stored in the detachable container 131 can also be discharged to the outside using the electric pump 14 or the manual pump 114 through one outlet path 5.

(Embodiment 3) In Embodiment 3, as shown in FIG. 5, a shoulder made of a synthetic resin is used to provide a necessary shape and space at the shoulder and the bottom of the vacuum double container 3c. Member 1
6. The body 13 is configured by mounting the bottom member 141.
Thereby, the configuration of the case 13 can be adjusted by the outer case 12 while the configuration is simplified as compared with the case of the first embodiment.

In the embodiment shown in FIGS. 1 to 3, the diameter of the discharge port 14a of the electric pump 14 is smaller than the diameter of the suction port 14b. As a result, the speed of the hot water stored in the electric pump 14 can be increased and sent out to the outlet passage 5, and the hot water can be pumped up to the required height with a small load and with low power consumption and discharged.

The outlet passage 5 has a passage cross-sectional area from the inflow port 5e to the discharge port 5d, like the path from the liquid amount indicating pipe 5a to the discharge port 5d shown in FIGS. Even in the case where it is set so as to be reduced partially or continuously, in a region where the cross-sectional area of the passage decreases toward the discharge port 5d, including the above-described passage condition in the electric pump 14, By increasing the speed, the discharge load of the electric pump 14 and the manual pump 114 can be further reduced, and power consumption or operating force can be reduced.

Since the passage cross-sectional area of the interior 38b of the water stop valve 38 and the like is set larger than the passage cross-sectional area of the outlet 38c and the like of the water stop valve 38, the discharged hot water is stored in the outlet passage 5. While the passage resistance when passing through a certain water shutoff valve 38 and the like is smaller than that of the subsequent outlet passage 5, the flow rate at the time of flowing out to the outlet passage 5 is increased to increase the electric pump 14 and the manual pump 114.
Accordingly, the content liquid can be discharged with a low load.

In the first to fourth embodiments, the electric pump 214 using a single spiral blade 214a as in the embodiment shown in FIGS. 7 and 8 or the electric motor using the screw 314a as in the embodiment shown in FIG. A pump 314 can be used.

The electric pump 21 of the embodiment shown in FIGS.
Reference numeral 4 indicates that the spiral single blade 214a forms a smooth spiral fluid passage 214b in a stationary state, and is therefore less likely to become a resistance when hot water is discharged by the manual pump 114. Further, the electric pump 314 of the embodiment shown in FIG. 9 is also suitable because the screw 314a forms the helical fluid passage 314b when the screw 314a is stationary, so that the manual pump 114 does not become a resistance when hot water is discharged.

In each of the electric pumps 214 and 314, a single blade 214a and a screw 314a are driven by a non-contact coupling 334 using a magnet 334a to rotate a motor 333.

When the electric pumps 14, 214, 314 are stopped at the rotational position where the resistance of the stored liquid is minimized when the electric drive is stopped, the resistance in the case of the discharge by the manual pump 114 is reduced. Can be further reduced.

[0048]

According to one feature of the hot water storage container of the present invention, the switching means is such that the inner container switches between the manual pump and the steam passage in conjunction with the pressurized discharge operation by the manual pump and the release thereof. When the manual pump is not used, the steam generated inside the inner container is released to the outside through the steam passage to prevent abnormal pressure rise and pushing out of hot water. At the same time, the stored liquid is discharged by an electric pump and its one lead-out path, while preventing the outflow of the stored liquid at each time by a water stop valve provided at each of them to ensure the storage of the hot water.
Pushing and discharging the electric pump by using one outlet path by pressurizing the stored liquid by a manual pump is achieved with a simple passage structure, and the stored liquid is discharged either electrically or manually. The structure is simple and inexpensive.

According to another feature of the hot water storage container of the present invention, the switching means is such that the inner container switches between the manual pump and the steam passage in conjunction with the pressurized discharge operation by the manual pump and the release thereof. Therefore, when the manual pump is not used, the steam generated inside the inner cylinder of the vacuum double container escapes to the outside through the steam passage to prevent an abnormal pressure rise and pushing out of hot water. In order to ensure the safety of hot water storage by preventing the liquid content stored in the hot water from flowing out when the container rolls over, the vacuum space of the vacuum double container, the vacuum double container and the container While ensuring high-efficiency hot water storage with high heat insulation by the space between the outer case and the heater, it is also convenient for keeping warm and cool without using a heater, while the stored liquid is stored in an electric pump and One of them The discharge by the outgoing path and the push-out and discharge using the one outgoing path of the electric pump by pressurizing the content liquid stored in the hot water by the manual pump are achieved by a simple passage structure, and the stored content liquid is discharged. The structure can be simple and inexpensive because it can be used by electric or manual discharge.

Furthermore, according to the hot water storage of the present invention, the switching means allows the inner container to switch between the manual pump and the steam passage in conjunction with the pressurized discharge operation by the manual pump and the release thereof. When the pump is not used, the steam generated inside the inner cylinder of the vacuum double vessel escapes to the outside through the steam passage to prevent abnormal pressure rise and pushing out of hot water. The hot water storage can be prevented by the water stop valve provided at each rollover, and the hot water can be stored safely. One of the above-mentioned electric pumps is achieved by pressurizing the stored liquid by a manual pump, while maintaining a simple container structure to keep the heat and cool without using a heater. Achieved by a simple passage structure and extrusion discharge which share the Detchi, structures can be used is that inexpensive easy discharge even manually or by an electric liquid contents being hot water storage.

In these cases, when the diameter of the discharge port of the electric pump is smaller than the diameter of the suction port, the speed of the hot water drawn into the electric pump is increased and the hot water is sent out to the outlet path, and the hot water is stored with a small load and with low power consumption. The content liquid can be pumped up to the required height and discharged.

Also, when the outlet path is set so that the cross-sectional area of the passage decreases from the inlet to the discharge port, partially or continuously, the cross-sectional area of the passage decreases toward the discharge port. In the moving region, the speed of the content liquid to be discharged can be increased to further reduce the discharge load of the pump, thereby reducing power consumption or operating force.

If the cross-sectional area of the passage of the water stop valve is set to be larger than the cross-sectional area of the passage at the outlet of the water stop valve, the passage resistance when the content liquid to be discharged passes through the water stop valve in the outlet path is reduced. It is possible to reduce the discharge load of the pump by increasing the flow velocity at the time of the outflow to the outflow path while making it smaller than the subsequent outflow path, thereby reducing power consumption or operating force.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one example of an electric pot according to Embodiment 1 of the present invention.

2A is a cross-sectional view of a front half portion of the electric pot of FIG. 1, and FIG. 2B is a cross-sectional view of a lead-out portion around an electric pump.

FIG. 3 is a plan view of the electric pot of FIG. 1;

FIG. 4 is a cross-sectional view showing one example of an electric pot according to Embodiment 2 of the present invention.

FIG. 5 is a cross-sectional view of a first half showing an example of an electric pot according to Embodiment 3 of the present invention.

FIG. 6 is a cross-sectional view showing an upper part of an electric pot body according to Embodiment 4 of the present invention.

FIG. 7 is an internal structure diagram of an electric pump showing a first modified example of each embodiment.

FIG. 8 is a cross-sectional view of a part of an electric pump showing a second modification.

FIG. 9 is a cross-sectional view of an electric pump according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Inner container 3a Inner cylinder 3c Vacuum double container 4 Heater 5 Outlet 8 Cover 9 Steam passage 12 Outer case 13 Container body 14 Electric pump 23, 38 Water stop valve 114 Manual pump 115 Press plate 117 Passage switching valve 122 Hot water supply key

Claims (6)

[Claims] 1. A method according to claim 1, wherein a liquid is put into an inner container housed in the container, and the container is heated and kept warm while the lid of the container is closed, and the stored liquid is discharged to the outside by a pump. In the hot water storage container, a steam passage provided in the lid to allow the steam generated in the inner container to escape to the outside, one outlet passage connected to the inner container to guide the stored liquid to the outside, and a steam passage and an outlet passage are provided. A water stop valve that is individually provided to close the steam passage and the lead-out passage when the container body rolls over, and to prevent the stored liquid from flowing out through the steam passage and the lead-out passage; and the inner container or the lead-out passage. An electric pump for discharging the content liquid stored in the hot water through the one outlet path, and discharging the content by the electric pump by pressurizing the stored liquid provided on the lid or the body side. Share one departure route and the above contents And a switching means for switching the inside of the inner container between the manual pump and the steam passage in conjunction with the pressurizing operation by the manual pump and the release of the pressurizing operation. Hot water storage container. 2. A liquid is placed in a vacuum double container housed in a vessel, and the vessel is heated and kept warm while the lid of the vessel is closed, and the stored liquid is discharged to the outside by a pump. In the liquid container, a steam passage provided on the lid to allow the steam generated in the inner cylinder of the vacuum double container to escape to the outside, and one of the liquid passages connected to the inner cylinder of the vacuum double container to guide the hot water to the outside A detent path, a steam path, and a departure path that are separately provided to close the vapor path and the departure path when the container rolls over to prevent the stored liquid from flowing out through the vapor path and the departure path. A water valve, an electric pump provided in the vacuum double container or the outlet path for discharging hot water through the one outlet path, and pressurizing the stored liquid provided in the lid or the container to store the hot water. One derivation for discharging by the electric pump And a switching means for switching the inside of the inner container between the manual pump and the steam passage in conjunction with the pressurizing operation by the manual pump and the release of the pressurizing operation. A hot water storage container characterized by the following. 3. A hot water storage container in which a liquid is put into a vacuum double container, and water is heated and kept warm while the lid is closed, and the stored content liquid is discharged to the outside by a pump. A steam passage provided in the lid to allow steam generated in the inner cylinder of the vacuum double container to escape to the outside, one outlet passage connected to the inner cylinder of the vacuum double container to guide hot water to the outside, and a steam passage. A water stop valve which is provided separately from the outlet passage and closes the steam passage and the outlet passage when the container body rolls over to prevent the stored liquid from flowing out through the steam passage and the outlet passage; and An electric pump provided in a heavy container or the outlet path for discharging the stored liquid through the one outlet path, and pressurizing the stored liquid provided on the lid or the vacuum double container side. One that performs discharge by the electric pump Hot water storage vessel, characterized in that a manual pump for extruding discharged through Detchi. 4. The hot water storage container according to claim 1, wherein the diameter of the discharge port of the electric pump is smaller than the diameter of the suction port. 5. The hot water storage according to claim 1, wherein the outlet path is set such that the cross-sectional area of the passage decreases from the inflow port to the discharge port side partially or continuously. container. 6. The hot water storage container according to claim 1, wherein the cross-sectional area of the passage of the water stop valve is set larger than the cross-sectional area of the passage of the outlet of the water stop valve.