JP3096410B2 - Liquid ejection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid discharging apparatus for automatically discharging when a liquid contained in a liquid container is heated or cooled, when a predetermined liquid temperature is reached. .

[0002]

2. Description of the Related Art Conventionally, an electric pot, a water cooler and the like are known as a liquid container provided with a heating means or a cooling means, and the electric pot is generally provided with a function of keeping a constant liquid temperature. .

[0003]

The electric pot and the water cooler as described above have a disadvantage that the valve and the cock must be opened by some operation from the outside in order to discharge the liquid inside. In addition, in the conventional case, it is configured to be suitable for heating, cooling, and keeping a large amount of liquid,
A device for discharging a small amount of liquid (for example, hot water necessary for infant preparation, a small amount of tea or coffee, etc.) when necessary is complicated in structure and has a problem of being expensive. .

[0004] In addition, the electric pot is kept warm at a temperature of 60 ° C or higher in order to prevent germs from growing in the liquid, but hot water of a lower temperature such as when preparing milk for infants is used. If necessary, the hot water discharged from the pot has to be cooled, which is time-consuming and inconvenient.

Accordingly, an object of the present invention is to solve the above problems and to provide a liquid discharging apparatus capable of quickly obtaining a liquid having a desired temperature and automatically discharging the liquid.

[0006]

In order to achieve the above object, a first aspect of the present invention provides a valve element which is opened and closed at a predetermined temperature by a heat-sensitive deformable member on a bottom surface of a container provided with a heating means or a cooling means. A liquid container provided with a discharge port having a stop valve for urging the discharge port in a normally closed direction, and a stand for holding the liquid container and opening the stop valve.

According to a second aspect of the present invention, in the first aspect of the present invention, the container is formed by an inner container and an outer container,
A predetermined gap is provided between the inner and outer containers, and the lower part of the gap is kept liquid-tight.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the liquid container is configured such that the stop valve can be arbitrarily opened and closed depending on a holding position on the stand.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the heat-sensitive deformable member comprises two members that operate at an upper limit valve opening temperature and a lower limit valve opening temperature. It has a configuration having a valve temperature range.

According to a fifth aspect of the present invention, the stand is configured such that the holding height of the liquid container can be adjusted.

According to a sixth aspect of the present invention, the stand is formed of a receiving container opened below a discharge port of the liquid container.

[0012]

According to the first aspect of the present invention, the liquid in the container is heated or cooled, and when the temperature reaches a predetermined temperature, the valve body is opened but is kept liquid-tight by the stop valve. When placed on the stand in this state, the discharge port opens and discharges.

According to a second aspect of the present invention, a predetermined gap is provided between the inner container and the outer container, and a liquid at a predetermined temperature can be introduced by keeping the space below the gap liquid-tight. Heating / cooling at temperature is possible. In particular, when the liquid is frozen, efficient cooling can be performed. In addition, ice instead of liquid
And the like.

According to the third aspect of the present invention, the stop valve of the liquid container can be opened and closed at the position where the liquid container is placed on the stand.

According to the fourth aspect of the present invention, it is possible to discharge only a liquid in a predetermined temperature range.

According to the fifth aspect of the present invention, the vertical position of the liquid container can be adjusted.

According to the sixth aspect of the present invention, the liquid can be directly discharged from the liquid container to the receiving container also serving as a stand.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment shown in FIGS. 1 to 4 is a liquid ejection device used as a milk formula for infant milk or the like, and includes a liquid container 1, a lid 2 and a stand 3. Be composed. The liquid container 1 is mainly composed of an inner container 4 and an outer container 5, and the inner container 4 has an open upper surface and a discharge port 6 provided at the center of the bottom surface. The discharge port 6 is provided with a flange 8 fixed on the periphery 7 (see FIG. 2) of the bottom opening of the inner container 4.
And a screw tube 9 formed on the inner periphery of the flange 8, and a valve seat 11 is formed at the lower end of the screw tube 9.

A plurality of holes 12 are formed in the upper end surface of the screw cylinder 9.
The on-off valve 14 facing the above-mentioned valve seat 11 is housed inside the screw cylinder 9. A heat-sensitive deformable member 15 is interposed between the on-off valve 14 and the spring retainer 13. This heat-sensitive deformable member 1
5 is made of a shape memory alloy spring, a shape memory resin spring, a bimetal, or the like, and the liquid temperature is a predetermined temperature (for example, 4
If the liquid temperature is lower than the above-mentioned temperature, it contracts as shown by a solid line, and the discharge port is closed. Release 6.

The inner container 4 is housed in the outer container 5 at a required interval. The outer container 5 is provided with a female screw cylinder 16 at the center of the bottom surface. The screw cylinder 9 of the discharge port 6 of the inner container 4 is screwed to the female screw cylinder 16. And the periphery of the female threaded tube portion 16 are sealed.

On the lower surface of the outer container 5, a leg tube 18 surrounding the female screw tube portion 16 is provided. A notch 19 is provided in a part of the leg cylinder 18, and a lever 21 is attached to the inside of the leg cylinder 18 by a fulcrum 22 so as to be swingable.
A stop valve 23 is provided at the tip of the lever 21, and the stop valve 23 faces below the discharge port 6.

The rear end of the lever 21 rests on a cam plate 31 described later provided on the stand 3. A spring 25 is pressed between the cam plate 31 and the fulcrum 22, and a stop valve 23 is pressed.
Is always urged in the valve closing direction of the discharge port 6 (see a two-dot chain line in FIG. 2).

The inner container 4 and the outer container 5 are covered with a lid 2 common to both. A handle 10 is provided on the outer container 5.

The stand 3 includes a base 26, a column outer cylinder 27 provided on one side thereof, a column inner cylinder 28 inserted into the column outer cylinder 27 so as to be vertically movable, and an upper end of the column inner cylinder 28. (See FIG. 3).

The mounting table 29 is formed in a vertically open cylindrical shape so as to receive and support the leg barrel 18 of the outer container 5 on the inner peripheral surface thereof, and is provided below a notch 19 provided in the leg barrel 18. An opposed cam plate 31 is provided.

As shown in FIG. 3, the cam plate 31 has a horizontal surface 32 and inclined surfaces 33 on both sides thereof. When the rear end of the lever 21 is placed on the horizontal plane 32, the rear end of the lever 21 is pushed up and the stop valve 23 is set to the discharge port 6.
And open the valve (see the solid line in FIG. 2).

As shown in FIGS. 1, 3 and 4, on the outer peripheral surface of the column inner cylinder 28 of the stand 3, two vertically symmetrical grooves 35, 35 are provided at two locations symmetrical with respect to the center. An inverted L-shaped engagement groove 36 is provided in a multi-stage shape in 35. In addition, two protrusions 37 of the same height that are engaged with the engagement grooves 36 are formed on the inner peripheral surface of the column outer cylinder 27. These projections 3
By fitting 7 into the two engaging grooves 36 of any one of the steps, the column inner cylinder 28 is held at a desired height. When changing the height, the inner column 28 is slightly lifted and rotated 90 degrees (see the arrow in FIG. 4), and the projection 37 is moved into the groove 35.
After moving to a desired height, it is engaged with the engaging groove 36 of that height.

The first embodiment is as described above. When preparing milk for infants using the first embodiment, as a preparation, the liquid container 1 is removed from the mounting table 29 and the inner container 4 and the inner container 4 are prepared. Water is poured into the gap between the outer containers 5, and the water is frozen in a freezer. Reference numeral 40 in FIG. 1 indicates frozen ice.

When the milk is taken out of the freezer during the milk preparation, the on-off valve 14 is opened because the heat-sensitive deformable member 15 is contracted. Is closed.

When the boiling water is poured into the inner container 4 from an electric pot or the like, the temperature causes the heat-sensitive deformable member 15 to expand, thereby pushing down the on-off valve 14 and closing the discharge port 6 from the inside. Thereafter, as shown in FIG. 1, the baby bottle 38 is placed on the base 26, and the liquid container 1 is placed on the placing table 29.

When the liquid container 1 is mounted on the mounting table 29 in a predetermined direction, the lever 21 is moved to the horizontal surface 32 of the cam plate 31.
To open the stop valve 23, and thereafter the opening and closing of the discharge port 6 is left to the on-off valve 14.

The hot water 39 in the inner container 4 is rapidly cooled by the surrounding ice 40 and reaches a predetermined temperature (for example, 40 ° C.).
When the temperature drops to a temperature set within a range of about 50 ° C.), the heat-sensitive deformable member 15 contracts and deforms, and the on-off valve 14 is operated to open the discharge port 6. As a result, the hot water is discharged into the baby bottle 38 on the base 26.

When it is necessary to stop the discharge during the discharge, the liquid container 1 is rotated by a required angle in the left or right direction along the inner peripheral surface of the mounting table 29. Then, the bent portion 24 of the lever 21 is disengaged from the cam plate 31 via the inclined surface 33 from the horizontal surface 32 of the cam plate 31. Thereby, the stop valve 23 closes the discharge port 6 to stop the discharge. To discharge the liquid again, the liquid container 1 may be rotated in the reverse direction to return to the original state.

In the above description, water is put in the gap between the inner container 4 and the outer container 5 to freeze it. However, ice blocks may be directly put in the gap between the two.

Next, in the second embodiment shown in FIGS. 5 and 6, a large number of fins 41 are radially provided on the outer peripheral surface of the inner container 4 in the first embodiment described above , so that the heat exchange efficiency is improved. It is something which raised.

[0036] As the fin 41 is shown in FIG. 6 (a), but is obtained by fixing the one side piece of the fin 41 on the outer peripheral surface of the inner container 4, the inner container as shown in FIG. 6 (b) 4 may be groove-shaped fins 41 ′ communicating with the inside of the fin 4.

In the third embodiment shown in FIG. 7, a spiral pipe 42 is interposed between the bottom surface of the inner container 4 and the discharge port 6, thereby increasing the surface area and improving the heat exchange efficiency. Things. A joint 43 is provided between the lower end of the spiral pipe 42 and the discharge port 6. Other configurations are
This is the same as in the first embodiment.

In the fourth embodiment shown in FIG. 8, two types of heat-sensitive deformable members 15 and 15 'are provided inside the discharge port 6. Now, one of the heat-sensitive deformable members 15 has a transformation temperature of 50 ° C. (extends at 50 ° C. or more and contracts at 50 ° C. or less), and the other heat-sensitive deformable member 15 ′ has a transformation temperature of 40 ° C.
(Shrink at 40 ° C. or more, elongate at 40 ° C. or less), the members 15 and 15 ′ contract only when the liquid temperature is in the valve opening temperature range between 40 ° C. and 50 ° C. The valve is opened, and the liquid can be discharged.

Although the above description has been made with respect to the infant milk conditioner, if the heat-sensitive deformable member 15 having a low transformation temperature (for example, 10 ° C.) is selected, ice coffee,
It can be used as a cooler for cold sake or the like, and if one having a high transformation temperature (for example, 70 ° C.) is selected, it can be used as a hot water stirrer for green tea.

In addition to the above-mentioned use as a cooler or a water heater, hot water is put between the inner container 4 and the outer container 5, and the heat-sensitive deformable member 15 having a transformation temperature of about 40 ° C. is used. When the sake is put into the inner container 4, it can be used as a sake kettle.

In each of the above embodiments, hot water or ice is put between the inner container 4 and the outer container 5,
In the present invention, not limited to these, any heating / cooling means can be used. For example, as in the fifth embodiment shown in FIG. 9, a heater 44 is attached to the outer peripheral surface of the inner container 4 and a transformation temperature of the heat-sensitive deformable member 15 of about 70 ° C. is used as a water heater for green tea. Can be used. Further, a cooler using the Peltier effect or the like may be used instead of the heater 44.

In each of the above embodiments, the receiving container such as the baby bottle 38 is placed on the stand 3. However, the stand 3 and the receiving container are integrated (for example,
The mounting table 29 (see FIG. 3) of the stand 3 of the first embodiment may be extended to the base 26 to form a receiving container having an upper opening. This is convenient because there is no need to separately place a receiving container on the stand 3.

[0043]

According to the first aspect of the present invention, the liquid container can be heated or cooled at any place. In addition, since the liquid can be discharged only when the liquid is placed on the stand, it is safe, and the valve is automatically opened and discharged at a predetermined temperature, which is convenient. Further, if the liquid container is set on a stand and heated or cooled, a liquid at a predetermined temperature can be discharged to an arbitrary receiving container such as a baby bottle in a short time.

According to the second aspect of the present invention, heating or cooling with a liquid or the like can be performed by a simple device. In particular, the liquid put between the inner container and the outer container can be frozen, and in this case, the cooling performance is good.

According to the third aspect of the present invention, the discharge can be stopped during the discharge, and the discharge amount can be adjusted.

According to the fourth aspect of the present invention, it is possible to discharge with high precision without discharging a liquid that is too cold or too hot.

According to the fifth aspect of the present invention, since the height of the stand can be freely adjusted, it is possible to cope with receiving containers of various heights, and there is no splash of the discharged liquid.

According to the sixth aspect of the present invention, since the liquid can be directly discharged to the receiving container integrated with the stand, the structure is simplified.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment.

FIG. 2 is a partially enlarged sectional view of the above.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is a partial cross-sectional view of the second embodiment.

6A is a cross-sectional view of the inner container of the above embodiment. FIG. 6B is a partially enlarged cross-sectional view of another example of the inner container of the embodiment.

FIG. 7 is a partially enlarged cross-sectional view of the third embodiment.

FIG. 8 is an enlarged sectional view of a discharge port portion according to a fourth embodiment.

FIG. 9 is a partial cross-sectional view of the fifth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid container 2 Lid 3 Stand 4 Inner container 5 Outer container 6 Discharge port 7 Peripheral edge 8 Collar part 9 Screw cylinder part 10 Handle 11 Valve seat 12 Hole 13 Spring retainer 14 Opening / closing valve 15, 15 'Thermal deformation member 16 Female screw cylinder part 17 Packing 18 Leg tube 19 Notch 21 Lever 22 Support point 23 Stop valve 25 Spring 26 Base 27 Support column outer cylinder 28 Support column inner cylinder 29 Mounting table 31 Cam plate 32 Horizontal plane 33 Inclined surface 35 Groove 36 Engagement groove 37 Projection 38 Baby bottle 39 Hot water 40 Ice 41, 41 'Fin 42 Spiral pipe 43 Joint 44 Heater

Continuation of the front page (56) References JP-A-61-41421 (JP, A) JP-A-60-220012 (JP, A) JP-A-57-134125 (JP, A) , U) Actually open Showa 48-81444 (JP, U) Actually open Showa 60-140536 (JP, U) Actually open Showa 40-40433 (JP, U) Actually open Showa 55-159026 (JP, U) Actually open 63-58577 (JP, U) Jiko 49-1489 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 41/00 303 A47J 27/21 101

Claims (6)

(57) [Claims] 1. A discharge valve having a valve body which is opened and closed at a predetermined temperature by a heat-sensitive deformable member is provided on a bottom surface of a container provided with a heating means or a cooling means, and a stop valve for urging the discharge port in a normally closed direction is provided. A liquid ejection device comprising: a provided liquid container; and a stand that holds the liquid container and opens the stop valve. 2. The container according to claim 1, wherein the container is formed by an inner container and an outer container, a predetermined gap is provided between the inner and outer containers, and a space below the gap is kept liquid-tight. The liquid ejection device according to claim 1. 3. The liquid discharging apparatus according to claim 1, wherein the stop valve of the liquid container can be arbitrarily opened and closed by a holding position on the stand. 4. The heat-sensitive deformable member comprises two members that operate at an upper limit valve opening temperature and a lower limit valve opening temperature, and has a predetermined valve opening temperature range. A liquid ejection device according to claim 1. 5. The liquid ejecting apparatus according to claim 1, wherein the stand is capable of adjusting a holding height of the liquid container. 6. The liquid discharging apparatus according to claim 1, wherein the stand is formed by a receiving container opened below a discharge port of the liquid container.