JPH1014770A - Water pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water pump with high boiling efficiency suitable for use for a boiler for herbal medicines or health tea or percolator for extracting coffee. SOLUTION: This pump is composed of a fan-shaped bubble collection pipe 25 arranged inside the lower part of a pot 2 and a water pumping pipe 27 extended vertically upward while being communicated and linked to the bubble collecting pipe 25 and, by heating water in the pot 3, boiled water can be pumped through the water pumping pipe 27. In this time, the bubble collecting pipe 25 is formed from a material which has at least heat resistance and reduces heat conductivity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pump suitable for use as a percolator.

[0002]

2. Description of the Related Art Conventionally, a percolator is known as a device for circulating hot water to boil coffee, which is disposed in an upper portion of a pot placed on a heating device and is provided at a bottom portion of a container for containing coffee grains. A filter container provided with a large number of pores, a trumpet-shaped foam collection tube disposed in the lower part of the pot, and a water pump comprising a water pumping tube communicating with the foam collection tube and the filter container. By heating the water in the pot, boiling water can be supplied to the filter container through the pumping pipe.

[0003] With such a configuration, the circulation of returning the boiling water from the pumping pipe to the pot through the coffee grains in the filter container is performed to obtain a coffee liquid.

[0004]

However, most of the above-mentioned pumps are made of a metal such as aluminum for the foam collecting pipe, the pumping pipe and the filter container, and have the following problems. Was.

[0005] That is, when the water in the pot is heated and boiled, the boiling water is pumped from the inside of the foam collection tube through the pumping tube. However, if the foam collection tube is made of metal, the heat conductivity is high and the heat insulation property is high. However, despite the fact that it is close to the heat source, is partitioned into small volumes by the foam collection tube, and is under conditions that make it easy to boil, the heat applied to the water in the foam collection tube passes through the foam collection tube. It escaped to the outside water and reduced the boiling efficiency in the foam collection tube.

Further, the material of the pot is generally made of glass so that the inside can be seen, or made of metal which is excellent in terms of strength. Because of its low performance, a large amount of heat transferred from the water was released from the side wall of the pot to the outside air, further reducing the thermal efficiency.

Further, when transferring the completed coffee from a pot to a cup, the water pump must be taken out. However, since the whole water pump becomes high in temperature, there is a problem that there is a risk of burning when handling the water. .

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a conical foam collection tube disposed in the lower part of a pot, and a vertically connected upper portion connected to the same. It consists of a water pipe that extends, and by heating the water in the pot,
The boiling water can be pumped up through the pumping pipe,
At least the foam collection tube is formed of a material having heat resistance and low thermal conductivity.

With this configuration, the water in the foam collection tube is heated intensively, the boiling efficiency is improved, and the start of pumping of the boiling water can be expedited.

[0010] The present invention also provides a container for accommodating a component for extraction disposed in an upper portion of a pot, a conical foam collection tube disposed in a lower portion of the pot, the same bubble collection tube and the component extraction tube. It comprises a pumping pipe communicating with the material storage container, and by heating the water in the pot, it is possible to supply boiling water to the component extraction material storage container through the pumping pipe and has heat resistance. It is also characterized by being formed of a material having low thermal conductivity.

[0011] Therefore, when coffee grains, herbal medicine, health tea, and the like are stored in the ingredient extraction material storage container, the circulation of boiling water is carried out efficiently, and the extraction of the intended boiled liquid can be expedited. Also, when the boiled liquid is taken out to a cup or the like and the pump is taken out, since the pump has a low thermal conductivity, it is safe without high temperatures such as burns.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The water pump according to the present invention comprises a conical foam collecting pipe disposed in the lower part of a pot, and a water pump communicating with the foam collecting pipe and extending vertically upward. By heating the water in the pot, the boiling water can be pumped up through the pumping pipe, and at least the foam collection pipe has heat resistance, and is formed of a material having a low thermal conductivity. is there.

[0013] Further, the following configuration may be adopted so as to be suitably used for a boiler for boiling a Chinese medicine or health tea, or a percolator or a drip coffee maker.

That is, a container for accommodating a component for extraction disposed in an upper portion of a pot, a conical foam collection tube disposed in a lower portion of a pot, the same tube for collecting foam and a container for accommodating the component extraction material, By heating the water in the pot, it is possible to supply boiling water to the component extraction material storage container through the inside of the pumping pipe by heating the water in the pot, which has heat resistance, and , Made of a material having low thermal conductivity.

[0015] With this configuration, the foam collection tube functions as a heat insulating material, and heat applied to water in the foam collection tube does not escape to the outside of the tube, and the inside of the foam collection tube is intensively heated. As a result, the boiling efficiency is improved and the start of pumping of the boiling water can be hastened, so that the extraction of the target boiled liquid can be hastened.

By the way, the large-diameter opening of the foam collection tube is substantially similar to the foam collection tube mounting surface of the bottom wall of the pot so that the heat held in the pot can be efficiently transmitted to the water in the foam collection tube. It is preferable to have the same area, and if the large-diameter opening is formed to have a size that can cover a heat source for heating water in the pot, effective use of heat can be achieved even if the size of the heat source is small. The water in the bubble collection tube can be efficiently boiled.

It is preferable to use a polysulfone resin as a material having heat resistance and low thermal conductivity.

Polysulfone resin is a tough and high-strength thermoplastic resin, and has extremely excellent heat resistance and steam resistance.

Also, since it can be used for injection molding and extrusion molding, it is economical to process. Further, although it is a transparent or light-colored material, it can be colored in various colors, and its light weight and excellent properties as described above can be obtained. Together with this, it is known as a widely usable material.

In particular, unlike conventional metal-made pumps, the water pump is light in weight, so that the conical foam collection tube is easy to float, and relatively low-temperature hot water outside the foam collection tube is used. Since it is easy to flow into the foam collection tube from the lower part, the entire heating time can be reduced.

Further, since it has an appropriate elasticity, unlike a metal-made one, it is not deformed by an impact or the like.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a boiler A equipped with a water pump C according to the present invention.

The boiler A uses the water pump C according to the present invention to pack a healthy tea pack 23 containing, for example, oolong tea, rooibos tea, gymnema tea, Tochu tea, ashita leaf tea, havana tea, and the like as the material to be boiled. It is brewed in boiling water and served for drinking. The heating table 1 is controlled by a microcomputer and the heating table 1
And a water pot 2 for accommodating the water pump C.

As shown in FIG. 1, the heating table 1 is formed with a pot mounting port 3a having a circular shape in plan view from the center of the outer casing 3 to one end thereof. The pot mounting port 3a is formed by a cylindrical heat shield guard 4 made of a heat resistant resin at the lower part for preventing burns, and an upper cylinder 5, and an annular holding metal fitting 6 is provided above the heat shield guard 4. Through the heating plate 7
Is arranged.

Below the heating plate 7, a halogen lamp 10 held by a lamp holder 9 with a thermostat 8 is arranged. The halogen lamp 10 is a near-infrared light emitting lamp that functions as a heating unit and a light emitting body.

Although the heating plate 7 is transparent in this embodiment, a colored plate may be used to function as a color filter for the halogen lamp 10.

Below the halogen lamp 10, a reflecting plate 1 is provided.
1 is screwed to the lower part of the heat shield guard 4 via the reflector attaching member 12.

A temperature sensor 13 for detecting the temperature of the placed pot 2 is mounted on the inner peripheral surface of the upper cylinder 5.
4. A control unit 16 having a power socket 15 and adjusting a heating temperature based on a temperature detection signal from the temperature sensor 13 is provided.

An operation panel 18 having a display unit on which operation buttons are arranged as shown in FIG. 4 is mounted on the other end of the outer casing 3. On the operation panel 18, a start / cancel button 18a, a first setting button 18b for setting a 5-minute decoction time, a second setting button 18c for setting a 10-minute decoction time, and a 30-minute decoction time are set. A third setting button 18d and a warming button 18e are provided.
ON / OFF confirmation lamp 18 which is a red LED lamp
a ', an orange first setting confirmation lamp 18b', an orange second setting confirmation lamp 18c ', an orange third setting confirmation lamp 18d', and a green heat retention confirmation lamp 18e '. .

ON / OFF by start / cancel button 18a
When OFF, short alarm sounds and red LED
By turning on or off the lamp ON / OFF confirmation lamp 18a ', the start and cancellation of heating by the boiler A are notified.

An orange first setting confirmation lamp 18 is also provided.
b ', the second setting confirmation lamp 18c' and the third setting confirmation lamp 18d 'respectively correspond to the first to third setting buttons 18b and 18c in accordance with the decoction time of the material to be boiled (here, healthy tea). , 18d for 5 minutes, 1
The light turns on when the decoction time of 0 minutes and 30 minutes is set, and when the decoction is completed, the ON / OFF confirmation lamp 18a 'flashes and the alarm continues to beep for 10 seconds with a short sound. 'And turn off the light.

Then, a green heat retention confirmation lamp 18e '
Is turned on automatically by the control unit 16 after the completion of cooking, or when the user presses the heat keeping button 18e.

When the temperature sensor 13 detects an abnormally high temperature state of the pot 2 or a state where the temperature does not change with time, the start / cancel button 18a is turned off in the event of water shortage or an abnormality without the pot 2. I am trying to become. In FIG. 1, reference numeral 17 denotes a thermal fuse.

Next, the pot 2 will be described with reference to FIGS.

The pot 2 is provided with a spout 19 at an upper facing position.
And a transparent cylindrical pot made of heat-resistant glass provided with a handle 20, and an outer lid 22 provided with an endoscope dome 21 made of glass at the upper center. On the inner surface of the outer lid 22, there is provided a cylindrical dish-shaped upper filter 24 which can hold down a healthy tea pack 23 as an object to be boiled up during boiling.

In the pot 2, a large-diameter foam collection tube 25 having a conical shape disposed at the lower portion of the pot, that is, a downwardly trumpet-like shape here, and a material-extracting material storage container disposed at the upper portion of the pot are provided. A boiled plate 26 for boiling the healthy tea in the healthy tea pack 23, the collection tube 25 and the boiled plate 26
And a water pump C comprising a water pipe 27 for supplying water boiled by the halogen lamp 10 in the lower part of the pot 2 to the boiled dish 26 and immersing the healthy tea pack 23 therein.
Are arranged. Further, at the lower edge of the foam collection tube 25, four notches 25a through which water flows in and out between the lower portion of the pot 2 and the inside of the foam collection tube 25 are formed at every 90 °.

The water pump C is an essential part of the present invention, and is characterized in that the water pump C is formed of a material having heat resistance and low thermal conductivity.

In this embodiment, the water pump C is lightweight,
Low thermal conductivity, good heat insulation, and heat resistant temperature of 14
It is molded at a temperature of 9 to 171 ° C. using a polysulfone resin having good chemical resistance to inorganic acids, alkalis and salts.

As described above, in this embodiment, since at least the foam collection tube 25 is formed of a polysulfone resin having a low thermal conductivity and heat insulation, water in the lower portion of the pot 2 is removed from the boiling foam collection tube 25. High temperature water inside and boiled dish 26
The heat can be shut off from the low-temperature decoction solution (boiled liquid) that has fallen from the side, and the heat added to the water in the foam collection tube 25 is removed by the heat from the foam collection tube 2.
Since the inside of the bubble collecting tube 25 is intensively heated since it does not escape to the outside, the boiling efficiency is improved, and the start of pumping of boiling water can be hastened.

In particular, as described above, although the foam collection tube 25 is formed in a conical shape, the large-diameter opening portion 25b serving as a lower portion thereof is formed.
Has substantially the same area as the foam collection tube mounting surface 2b of the bottom wall of the pot 2, and in the present embodiment, the large-diameter opening 25
b is formed in a size capable of covering the halogen lamp 10 which is a heat source for heating the water in the pot 2.

Therefore, the heat from the halogen lamp 10 can be efficiently used for heating the water inside the foam collection tube 25.

The specific gravity of the polysulfone resin is 1.
Since it is about 2, it is much lighter than a metal one (for example, the specific gravity of aluminum is 2.7), and it is easy to float.
The external hot water, which has a relatively low temperature compared to the inside,
Since it can be easily introduced into the inside, the overall boiling time can be shortened, and the heating efficiency is improved.

Further, the polysulfone resin has good workability and can be easily formed into a desired shape, and has an appropriate elasticity. Therefore, unlike a metal or the like, the polysulfone resin is not likely to be deformed by an impact or the like.

The pumping pipe 27 raises and supplies the boiling water to the boiled dish 26 from a drain port 27a formed at the upper end of the pumping pipe 27 while causing convection of the boiling water rising in the pipe 27. The pipe is adjusted to have a thickness that can be stored. Specifically, the inner diameter of the pumping pipe 27 is set to 5 to 2
0 mm, preferably 10 to 15 mm. In addition,
In this embodiment, it is 10 mm.

The pumping pipe 2 is set in such a range.
When the inner diameter of 7 is less than 5 mm, the water pipe 27 becomes too thin, and the speed of rising the boiling water to the boiled dish 26 increases,
Part of the boiling water rising in the pumping pipe 27 is supplied to the boiled dish 26 without convection in the pipe returning to the foam collection pipe 25,
As a result, the decoction of the healthy tea pack 23 cannot be sufficiently performed.
7 is too thick, and boiling water containing bubbles heated at the lower part of the pot is supplied to the inlet 2 of the pumping pipe 27 by the foam collection pipe 25.
Even if it is collected to 7b, the rising power of the boiling water containing air bubbles cannot lift the pumping tube 27 and the healthy tea pack 23 cannot be boiled.

The boiled dish 26 is a dish member having a gentle trumpet shape at the lower part, and the bottom surface at the center is formed by the pumping pipe 2.
The drainage port 27a formed at the upper end of the pipe 7 is flush with the drain port 27a.

At the bottom of the boiled dish 26, a lower filter 28 serving as a mounting member for the health tea pack 23 and serving as a strainer for unboiled foods such as healthy tea.
Is installed. That is, the healthy tea pack 23
It is stored in the space between the upper and lower filters 24 and 28.

A plurality of overflow portions 29 for returning boiled water to the lower portion of the pot 2 at predetermined angles are formed on the upper peripheral surface of the boiled dish 26. Flange 26 mounted on upper peripheral edge of 2
a is formed.

In this embodiment, the pump C is made of a translucent milky white color, and the hollow light diffuser a which diffuses the light from the transparent pot 2 and the halogen lamp 10 which has passed through water in all directions is used as the hollow light diffuser a. Also works.

Here, a method of using the boiler A of this embodiment will be described.

First, the foam collecting tube 25, the water pumping tube 27, and the boiled dish 26 are placed on the heating plate 7 from the pot mounting opening 3 a of the heating table 1.
Is placed on the pot 2 containing. Next, the outer lid 22 is opened, and the health tea pack 23 is boiled and the lower filter 28 of the dish 26 is removed.
Place on top. When the outer lid 22 is closed, the health tea pack 23
Are arranged in the space between the upper and lower filters 24 and 28.

Then, any one of the first to third setting buttons 18b, 18c, 18d shown in FIG. 4 is pressed according to the brewing time of the healthy tea in the healthy tea pack 23 (normal healthy tea brewing time). In this case, the first setting button 18b for 5 minutes is used). As a result, one of the first to third setting confirmation lamps 18b ', 18c', and 18d 'is turned on (the first setting confirmation lamp 18b' is usually used).

Next, the start / cancel button 1 of the heating table 1
When 8a is pressed, a short alarm sounds and the red LE
The ON / OFF confirmation lamp 18a 'of the D lamp is turned on, and the control unit 16 supplies electricity to the halogen lamp 10 to start heating water accumulated in the lower portion of the pot 2, and the light emission of the halogen lamp 10 causes The milky members 25 to 27 forming the above-mentioned hollow light diffuser diffuse the light in all directions, so that a fantastic luminescent color appears as a whole (FIG. 2).

At the time of this heating, since the foam collection tube 25 is formed of a polysulfone resin having a low thermal conductivity, it functions as a heat insulating material, and the heat applied to the water in the foam collection tube 25 is transferred to the outside of the foam collection tube 25. There is no escape, boiling efficiency is improved and pumping starts earlier. Moreover, since a heat insulating layer made of lukewarm water is formed outside the foam collection tube 25 functioning as a heat insulating material, it is possible to prevent heat from escaping from the glass-made non-insulating pot 2 to the outside air. Boiling of the whole water inside also hastens.

As shown in FIG. 3, when the water in the pot 2 boils over time, the boiling water containing air bubbles is collected at the upper central portion by the downward trumpet-shaped foam collection tube 25, and is lifted to the pumping tube 27.
And is supplied to the boiled dish 26.

The inner diameter of the pumping pipe 27 is 10 mm.
Since it is larger than the inner diameter of the pumping pipe of the percolator for boiling coffee etc., the rising power of the boiling water collected by the foaming pipe 25 cannot rise to the boiled dish 26 as vigorously as the thin pumping pipe of the percolator, In the pumping tube 27, the boiling water level gradually rises to the boiled dish 26 having a large surface area while causing a convection in the tube in which a part of the boiling water returns to the foam collection tube 25. In the boiled dish 26, the temperature is lowered to the simmering temperature by the outside air, or if the temperature is too low, the temperature is raised again by the rise of boiling water from the water pumping pipe 27. As a result, the simmering temperature is always maintained. Then, the boiling water rising to the boiled dish 26 little by little is stored, and the healthy tea pack 23 in the boiled dish 26 is sufficiently immersed and carefully boiled for a predetermined time.

At this time, the overflowing decoction water falls from the overflow section 29 into the lower part of the pot,
Some of the decoction water is multiplied by the convection of the boiling water in the pipe of the water pumping pipe 27 and goes down the water pumping pipe 27 to convert the inside of the lower part of the pot into brewed water.

As described above, the water in the pot 2 during the decoction is lit up from below by the halogen lamp 10 housed in the lower part of the heating table 1 as shown in FIG. Through the transparent pot 2, boiling water containing a large number of air bubbles collected by the translucent milky white foam collecting tube 25 is boiled out of the water pumping tube 27 and the dish 2.
6 can be surely visually recognized while enjoying the state in which the healthy tea pack 23 is boiled out. In particular, the large and small bubbles ascending rise and shine as white illusions like a cloud, and their movement and size can be clearly confirmed, and the user's mind can be relaxed.

When the infusion is completed, the ON / OFF confirmation lamp 18a 'blinks and the alarm continues to beep for 10 seconds with a short sound, and then the confirmation lamp 18a' is turned off together with the first setting confirmation lamp 18b '.

After completion of the decoction, the green heat keeping confirmation lamp 18e 'is automatically turned on by the microcomputer control unit 16, and the temperature is lowered to a predetermined temperature.

It is to be noted that the user can press the heat retention button 18e at an appropriate time to keep the temperature kept. Also,
When the temperature sensor 13 detects an abnormally high temperature state of the pot 2 or a state where there is no change in temperature over time, the start / cancel button 18 is pressed when there is a shortage of water or an abnormality without the pot.
a is set to OFF.

Then, the outer lid 22 is opened, the stored water pump C is taken out, the handle 20 is gripped, and the pot 2 is tilted.
Pour the decoction into the cup from the spout 19 and drink it.
At this time, since the water pump C has a heat insulating property, the temperature is not high, and the pump C is safe without a risk of accidental burns.

As described above, in the boiler A of the present embodiment,
A material having heat resistance and low thermal conductivity, that is,
Since the water pump C provided with the polysulfone resin is provided, the boiling efficiency is improved, the boiling out of the health tea pack 23 is accelerated, and the time required for the completion is reduced.

Further, in this embodiment, since the drain port 27a formed at the upper end of the pumping pipe 27 is connected to the bottom surface of the boiling dish 26, the relatively high-temperature water can be pumped.
Since the water can be supplied to the inside and the length of the pumping tube 27 is relatively short, the boiling of the healthy tea pack 23 can be started in a short time.

In the present embodiment, the water pump C is described as having the foaming tube 25, the boiled dish 26, and the water pipe 27 integrally formed. However, the boiled dish 26 may be formed separately. In this case, the same effect is obtained.

As shown in FIG. 5, the pot 2 may be formed by forming a convex portion 2c on the foam collecting tube mounting surface 2b of the bottom wall.

In this case, the large-diameter opening 25b of the foam collection tube 25
Is made to correspond to the diameter of the convex portion 2c, so that when the water pump C is accommodated and placed in the pot 2, its positioning becomes easy. Further, as shown in FIG. 5, the heating table 1 in this case can be provided with a convex heater section H corresponding to the concave section 2d formed on the back side of the convex section 2c, and the pot 2 is held on the heating table 1. The water can be placed while the convex heater portion H directly heats the water in the foam collection tube 25, so that the thermal efficiency is improved.

In this embodiment, the pump C is replaced with the boiler A.
However, the present invention can be naturally applied to a percolator, a drip-type coffee maker, and the like.

Further, in the above-described embodiment, the foam collection tube 2
Although 5 is described as a trumpet shape, for example, the cross-sectional side shape shown in FIG. 6 and the large-diameter opening 25b shown in FIG. 7 are also conceivable.

That is, FIG. 6A shows an umbrella shape,
(B) rises gently from the edge into a convex shape,
(C) is a bowl-like shape, (d) is a tube that rises vertically from an edge, and is an umbrella-like shape shown in (a). A series of things.

FIG. 7A shows a rectangular shape.
(B) is a circular shape used in this embodiment, (c).
In FIG. 7, (d) shows an oval shape, and (e) shows a plurality of concave portions 25c formed on a side surface of the foam collection tube 25.

[0073]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, a trumpet-shaped foam collection tube disposed in the lower portion of the pot, and a riser tube communicating with the foam collection tube and extending vertically upward, and comprising: By heating the water, the boiling water can be pumped up through the riser, and at least the foam collection tube has heat resistance and is made of a material having a low thermal conductivity. At the time of heating, the foam collection tube functions as a heat insulating material, and heat applied to the water in the foam collection tube does not escape to the outside of the foam collection tube, and the water in the foam collection tube is intensively heated. Boiling efficiency is improved, and pumping of boiling water can be started earlier. Also, since a heat insulating layer of lukewarm water is formed outside the foam collection tube that functions as a heat insulating material,
It is also possible to prevent heat from escaping from the peripheral wall of the pot to the outside air, and to accelerate boiling of the whole water in the pot.

According to the second aspect of the present invention, the component extracting material storage container disposed in the upper portion of the pot, the trumpet-shaped foam collecting tube disposed in the lower portion of the pot, the foam collecting tube, A riser tube that communicates with the component extraction material storage container. By heating the water in the pot, boiling water can be supplied to the component extraction material storage container through the riser tube, and heat resistance is increased. And, because it was decided to be formed of a material having a low thermal conductivity, a boiler, a water heater,
In addition to being widely applicable to coffee makers, etc., the above-mentioned effect allows the circulation of boiling water to be performed efficiently, and the extraction of the desired boiled liquid can be performed in a short time. When the pump is taken out when transferring to a cup or the like, the pump is low in heat conductivity, so that it is safe without being heated to a high temperature such as a burn.

According to the third aspect of the present invention, the large-diameter opening of the foam collection tube has substantially the same area as the surface of the bottom wall of the pot for mounting the foam collection tube. Most of the water can be directly transmitted to the water in the foam collection tube, thereby improving the thermal efficiency.

According to the fourth aspect of the present invention, since the large-diameter opening of the foam collection tube is formed to have a size capable of covering the heat source for heating the water in the pot, the heat source is small even if the size of the heat source is small. Can be effectively used for heating water in the foam collection tube.

According to the fifth aspect of the present invention, since polysulfone resin is used as a material having heat resistance and low thermal conductivity, the material is much lighter than a metal material. Since the water pump is easily lifted up, it is easy to introduce external hot water, which is relatively low in temperature compared with the inside of the foam collection tube, into the foam collection tube. The efficiency is good. Further, the polysulfone resin has good workability and is easily formed into a desired shape, and has an appropriate elasticity. Therefore, unlike a metal or the like, the polysulfone resin is not likely to be deformed by an impact or the like.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a boiler provided with a water pump according to the present invention.

FIG. 2 is an enlarged sectional view of a pot.

FIG. 3 is an explanatory view showing a boiling state.

FIG. 4 is an enlarged front view of an operation panel of the heating device.

FIG. 5 is an explanatory view showing one embodiment of a pot and a heating table.

FIG. 6 is an explanatory view showing one form of the shape of the foam collection tube in a side view.

FIG. 7 is an explanatory view showing the shape of a large-diameter opening of a foam collection tube.

[Description of sign]

 C Water pump 25 Foaming tube 26 Boiled dish 27 Pumping tube

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroyuki Kuwabata 4680 Ikata, Fukuoka, Tagawa-gun, Fukuoka Prefecture Kyushu Hitachi Maxell, Ltd.

Claims (5)

[Claims] 1. A conical foam collection tube disposed in a lower portion of a pot, and a water pumping tube which is connected to the foam collection tube and extends vertically upward by heating the water in the pot. And a pump in which boiling water can be pumped through the pumping pipe and at least the foam collection pipe is formed of a material having heat resistance and low thermal conductivity. 2. A container for accommodating a component for extraction disposed in an upper portion of a pot, a conical foam collection tube disposed in a lower portion of the pot, a foam collection tube for the same, and the container for accommodating component extraction. By heating the water in the pot, by heating the water in the pot, it is possible to supply boiling water to the material container for component extraction through the inside of the water pump, and has heat resistance, and
A water pump characterized by being formed of a material having low thermal conductivity. 3. The water pump according to claim 1, wherein the large-diameter opening of the foam collection tube has substantially the same area as the foam collection tube mounting surface of the pot bottom wall. 4. The method according to claim 1, wherein the large-diameter opening of the foam collection tube is formed to have a size capable of covering a heat source for heating water in the pot. Water pump. 5. The water pump according to claim 1, wherein a polysulfone resin is used as the material having heat resistance and low thermal conductivity.