JPH0427458Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to an electric pot.

[Prior Art] Electric pots that can easily boil water are generally known. As an example of this electric pot, a heating element is installed at the bottom of an inner cylinder (container) that has a bottom inside the outer cylinder, and the heating element directly boils the water in the inner cylinder, and the water in the inner cylinder is directly boiled. The air pump located at Some are designed to pour hot water from the outlet.

However, in such conventional electric pots, when the water is boiled, many air bubbles are generated on the surface of the heating element, and these air bubbles enter the pumping pipe, causing the pumping pipe to shut down instantly. The water level inside the tank had risen, and there was a risk that hot water would spout out from the spout.

[Problem that the invention attempts to solve]

The problem that this invention aims to solve is to prevent air bubbles from entering the pumping pipe even when the water is boiled, thereby preventing hot water from gushing out from the spout. The goal is to make it possible.

[Means for solving problems]

In order to solve this problem, the present invention boils the water in the container directly using a heating element installed at the bottom of the container, activates an air pump, and connects the water to the stopper provided at the top of the container. Hot water is poured out from a spout provided in communication with the pumping pipe through a pumping pipe provided in a downward shape,
In an electric pot having a structure in which the lower end of the pumping pipe opens above the heating element, a bubble intrusion prevention mechanism is provided at the lower end of the pumping pipe to prevent air bubbles from entering into the pumping pipe.

[Effect]

When the heating element generates heat to boil water, many bubbles are generated on the surface of the heating element and then float away from the heating element, but these air bubbles are blocked by the air bubble prevention mechanism of the pumping pipe and the pumping pipe This prevents the water level in the pumping pipe from rising instantaneously, and therefore prevents hot water from gushing out from the spout.

[Effect of idea]

Air bubbles generated on the surface of the heating element when water is boiled can be prevented from entering the pumping pipe, thereby preventing hot water from spewing out from the spout, and preventing air bubbles from entering the lower end of the pumping pipe. Since it is only necessary to provide a mechanism, it is possible to make an electric pot with a simple configuration and at low cost.Since it does not require changes to other parts, it is easy to apply to ready-made products, and its practical effects are great. .

〔Example〕

Hereinafter, the first embodiment of the present invention will be explained as shown in FIGS. 1 and 2.
This will be explained based on the diagram. Reference numeral 1 in FIG. 1 denotes a metal outer cylinder, and a bottom plate 2 is integrally provided at the lower end of this outer cylinder 1, and a bottom member 3 is attached to the bottom plate 2 with screws 3a. The bottom member 3 has a plug receiving part 4.
is provided.

Inside the outer cylinder 1, an inner cylinder (container body) 5 having a bottom is provided. The inner tube 5 has an upper end portion having a smaller diameter than the body portion and is connected to the upper end portion of the outer tube 1 by a shoulder portion 6, and a bottom portion thereof is connected to the bottom portion 2 of the outer tube 1. A vacuum layer 7 is formed between the inner cylinder 5 and the inner cylinder 5 . Inside the inner cylinder 5, a heating element (space heater, sheathed heater, etc.) 8 is provided watertightly attached to the bottom of the inner cylinder 5 so that the water inside the inner cylinder 5 can be directly boiled. A thermostat 9 is provided at the center of the heating element 8, and the heating element 8 is electrically connected to the plug receiving part 4.

A lower mouth member 11 is attached to the outer cylinder 1, the inner cylinder 5, and the shoulder part 6 via a packing 10 provided at the upper ends of the inner cylinder 5 and the shoulder part 6. This lower opening member 11 has an opening 12 concentric with the opening at the upper end of the inner cylinder 5.
is formed. A plug body 14 is airtightly attached to this opening 12 via a plug packing 13. The plug body 14 is provided with a water passage 15 and a ventilation passage 16. Further, a water pumping pipe 17 is provided in the plug body 14 in a downwardly extending manner, and this water pumping pipe 17 is communicated with one end of the water passage 15 . As shown in FIG. 2, a bottom plate (bubble intrusion prevention mechanism) 18 is provided at the lower end of the pumping pipe 17, and at least one small hole 19 is formed in the center of the bottom plate 18. Further, a plurality of water holes (bubble intrusion prevention mechanism) 20 are formed in the outer peripheral wall of the lower end of the water pumping pipe 17 . The other end of the water passage 15 is connected to the plug body 14
It communicates with a water stop mechanism 21 provided at the upper part of. The water stop mechanism 21 is communicated with a water injection pipe 23. The water injection pipe 23 is attached to the plug body 14, extends substantially horizontally above the outer pipe, and projects from the lower mouth member 11 with its tip directed downward to form the spout 22.

Above the lower mouth member 11, there is an upper mouth member 24 and a lid body 2.
5 is provided, and an air pump 26 is provided inside the lid body 25.
is incorporated. This air pump 26 is airtightly communicated with the ventilation passage 16 via a gasket 27, and by pushing a pusher body 28 at the upper part, hot water in the inner cylinder 5 is pumped through the pumping pipe 17, the water passage 15, and the water stop mechanism 21. The water can be poured out from the spout 22 via the water injection pipe 23. A steam release hole 29 is formed in the pusher body 28, and the steam generated when the hot water in the inner cylinder 5 boils passes through the ventilation path 16 and the air pump 26 and is released from the steam release hole 29 to the outside. .

Next, the operation of the electric pot constructed as described above will be explained. By energizing the heating element 8, the inner cylinder 5
When the hot water inside is boiled and the pusher 28 is pressed, the hot water inside the inner cylinder 5 mainly passes through the water passage hole 20, ascends the water pumping pipe 17, passes through the water stop mechanism 21, the water injection pipe 23, and is poured out from the spout 22. It will be done. At this time, air bubbles are generated on the surface of the heating element 8 and further float away from the heating element 8, but these air bubbles are removed because the pumping pipe 17 is provided with a bottom plate 18 and the small holes 19 in the bottom plate 18 have a small diameter. Therefore, since the water passage hole 20 is formed such that the axial direction of the water passage hole 20 is perpendicular to the floating direction of the bubbles, the bubbles are difficult to enter the water pumping pipe 17 and float upward. Therefore, the water level in the water pumping pipe 17 will not rise instantaneously, and hot water will not spout from the spout 22, making it safe.

Furthermore, when the plug body 14 is lifted and taken out, the water in the water pumping pipe 17 passes through the small hole 19 and is reliably drained from the water pumping pipe 17, without impairing its function as an air pot.

FIG. 3 is a longitudinal sectional view of the lower end of the pumping pipe 31 showing a second embodiment of the present invention. In this embodiment, the lower end of the pumping pipe 31 is completely closed by a bottom plate (bubble intrusion prevention mechanism) 32. And pumping pipe 31
At least one elongated water passage hole (bubble intrusion prevention mechanism) 33 is provided in the lower end side wall of the water passage hole 33.
At least one lower end of the bottom plate 32 is at approximately the same height as the top surface of the bottom plate 32. The operation of this embodiment is similar to that of the first embodiment, so a description thereof will be omitted.

FIG. 4 is a vertical cross-sectional view of the lower end of a pumping pipe 41 showing a third embodiment of the present invention. This is a prevention mechanism, and since the opening 42 is provided so that the axial direction of the opening 42 at the lower end of the pumping pipe 41 is perpendicular to the floating direction of the bubbles, bubbles at the time of boiling are difficult to enter into the pumping pipe and float upward. do.

FIG. 5 is a vertical cross-sectional view of the lower end of a pumping pipe 51 showing a fourth embodiment of the present invention. In this embodiment, the lower end of the pumping pipe 51 is fully opened, and a buttful ( Air bubble intrusion prevention mechanism) 5
3 is provided to prevent air bubbles from entering the pumping pipe 51. The buttful 53 may be fixed to the pumping pipe 51 by means such as welding, gluing, fitting, etc.
It is also possible to integrally mold them.

FIG. 6 is a longitudinal sectional view of the lower end of a pumping pipe 61 showing a fifth embodiment of the present invention. In this embodiment, a lower end opening 62 of the pumping pipe 61 has a
A filter 63 is provided that does not allow air bubbles to pass through, but allows water to pass through. The filter 63 is made of a bottomed cylindrical cloth, wire mesh, etc., and is fixed to the lower end of the water pumping pipe 61 by means such as welding, adhesion, and fitting.

FIG. 7 is a longitudinal sectional view of the lower end of a pumping pipe 71 showing a sixth embodiment of the present invention. In this embodiment, an annular recess 72 is provided on the outer circumference of the lower end of the pumping pipe 71, and A filter 73 similar to the filter of the sixth embodiment is provided at the lower end of the filter 71.
The filter 73 is removably attached to the lower end of the pumping pipe 71 by a ring 74 having spring properties located in the recess 72. This creates compatibility of the filter 73,
When the filter 73 becomes contaminated, it can be cleaned, which is sanitary.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment of the present invention, in which Figure 1 is a vertical sectional view of the lower end of the pumping pipe, Figure 2 is a vertical sectional view showing the overall structure, and Figure 3 is a vertical sectional view of the lower end of the pumping pipe. 4 is a longitudinal sectional view of the lower end of a pumping pipe showing a second embodiment of the invention, FIG. 4 is a longitudinal sectional view of the lower end of a pumping pipe showing a third embodiment of the invention, and FIG. FIG. 6 is a longitudinal cross-sectional view of the lower end of the pumping pipe showing the fourth embodiment of the invention, FIG. 6 is a longitudinal sectional view of the lower end of the pumping pipe showing the fifth embodiment of the invention, and FIG. It is a longitudinal cross-sectional view of the lower end part of a pumping pipe showing a sixth example. 5...Inner cylinder (container body), 8...Heating element (space heater, sheathed heater), 14...Plug body, 17,
31, 41, 51, 61, 71... pumping pipe,
18, 32...Bottom plate (bubble intrusion prevention mechanism), 20,
33...Water hole (bubble intrusion prevention mechanism), 22...
Pour spout, 26...air pump, 53...buttful (air bubble intrusion prevention mechanism).

Claims (1)

[Claims for Utility Model Registration] (1) Water in the container is directly boiled by a heating element provided at the bottom of the container, an air pump is operated, and a stopper provided at the top of the container is heated. In an electric pot having a structure in which hot water is poured from a spout communicating with the pumping pipe through a lifting pipe provided in a downward shape, and the lower end of the pumping pipe is opened above the heating element, the lower end of the pumping pipe is heated. An electric pot characterized by being provided with an air bubble intrusion prevention mechanism that prevents air bubbles from entering the pumping pipe. (2) The bubble intrusion prevention mechanism is provided with a bottom plate at the lower end of the pumping pipe, and the bottom plate is provided with at least one small hole that allows water to pass through the pumping pipe and prevents air bubbles from entering, and 2. The electric pot according to claim 1, which is a registered utility model, characterized in that at least one water passage hole is provided in the lower end side wall of the water pumping pipe. (3) The bubble intrusion prevention mechanism is configured such that the lower end of the pumping pipe is closed by a bottom plate, and at least one water passage hole is provided in the side wall of the lower end of the pumping pipe,
2. The electric pot according to claim 1, wherein the lower end of the water passage hole is configured to be approximately at the same height as the upper surface of the bottom plate. (4) The utility model registration claim is characterized in that the bubble intrusion prevention mechanism is constructed by bending the lower end of the pumping pipe by about 90 degrees so that the axial direction of the opening is orthogonal to the moving direction of the bubbles. Electric pot described in scope 1. (5) The electric pot according to claim 1, wherein the bubble intrusion prevention mechanism is configured by providing a buffle at the lower end opening of the pumping pipe. (6) A request for registration of a utility model characterized in that the bubble intrusion prevention mechanism is configured by providing a filter made of a material that allows water to pass through but does not allow air bubbles to pass through the lower end opening of the pumping pipe. The electric pot described in item 1. (7) Attach the filter to the lower end of the pumping pipe,
The electric pot according to claim 6, which is a utility model, and is detachably attached by a ring having spring properties.