JPS5845640Y2 - Thermos using air pressure - Google Patents

Description

[Detailed description of the invention] This invention relates to a thermos flask that uses air pressure, in which the tip of the discharge pipe is loosely fitted into the rear end of the liquid guide pipe that protrudes from the front of the outer case, and the liquid inside the inner bottle is taken out to the outside by the pressure of the bellows. It is something.

Conventionally, in this type of thermos flask that uses air pressure, when the bellows is pressed to pour the liquid in the inner bottle and the bellows is released from the pressure to stop pouring the liquid, droplets adhering to the inner wall of the liquid guide pipe gradually fall. The liquid will gather and three or four drops will fall from the tip of the liquid guide pipe.

For this reason, this type of thermos that uses air pressure has the disadvantage that the place where it is placed always gets wet.

The present invention has been made in view of the above-mentioned drawbacks, and aims to provide a thermos flask using air pressure that has a simple structure and completely prevents droplets from falling after pouring liquid due to the pressing and stopping operation of the bellows. be.

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

1 is a draining member 4 at the upper end of the outer case 3 surrounding the inner bottle 2.
A lid body 6 with a built-in bellows 5 is screwed to the upper surface of a draining member of the body so as to be openable and closable.

Reference numeral 7 denotes a liquid guiding pipe that penetrates through the exterior case 3 of the main body 1 and protrudes to the front of this exterior case, and has its rear end in close contact with the hole 20 of the draining member 4.
an inclined pipe portion 7a, a second inclined pipe portion 7b having an angle smaller than the inclination angle of the first inclined pipe portion that protrudes forward through the exterior case, and a second inclined pipe portion at the tip opening of the liquid guiding pipe. The third angle is greater than the inclination angle.
It is integrally molded with the inclined pipe portion 7C.

Reference numeral 10 denotes an inner stopper having a suction pipe 8 hanging down inside the inner bottle 2 and a discharge pipe 9 connected thereto, which is removably fitted into the central opening of the draining member.

The discharge port 11 of the discharge pipe 9 is loosely fitted into the rear end of the liquid guide pipe 7 above the hole 20 of the drainage member 4 to prevent siphon action.

Reference numeral 12 designates an integral cover that covers the liquid guide pipe 7 passing through the outer case 3, and is attached to the front surface of the outer case with screws 13°13.

A bottom body 14 is attached to the lower end of the outer case and supports the inner bottle 2.

In the present invention, a curling portion 15 curved inward is provided at the tip of the third inclined pipe portion 7C of the liquid guiding pipe 7, as shown in FIG.

16 is a bushing valve, 17 is a pressing plate, 18 is a locking device for the pressing plate, and 19 is a bundle.

As mentioned above, this invention uses a thermos flask that uses air pressure.
The first, second, and third inclined pipe parts of the liquid guide pipe are integrally molded, and the liquid guide pipe penetrates from above the hole in the drainage member, so the number of parts is small and assembly work is extremely easy. .

Furthermore, since the inclination angles of the first, second, and third inclined pipe portions of the liquid guide pipe are different from each other, and an inwardly curved curling portion is provided at the tip of the third inclined pipe portion, Even if the liquid is extremely attached to the inside of the liquid pipe, the liquid that is slightly attached will not overflow from the curling part, accumulate and fall as droplets, and the placing place can be reliably prevented from getting wet.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal side view of an embodiment of the present invention, and FIG. 2 is a perspective view showing essential parts of the embodiment of the present invention. 1...Thermos bottle body, 2...Inner bottle, 3
...Exterior case, 4...Draining member, 5
...Bellows, 6...Lid body, 7...
... Liquid guide pipe, 8 ... Suction pipe, 9 ...
...Discharge vibrator, 10...Inner stopper, 11...
...Discharge port, 12...Cover integrated, 13...
... Screw, 14 ... Bottom body, 15 ...
・Curling part, 16... Bush valve, 17.
... Pressing plate, 18 ... Pressing plate locking device, 19 ... Bundle, 20 ... Hole.

Claims (1)

[Scope of utility model registration request] A draining member is attached to the upper end of the outer case that surrounds the inner bottle, and a lid with a built-in bellows is attached to the upper surface of this draining member so that it can be opened and closed. A liquid guide pipe into which an inner stopper having a pipe and a discharge pipe communicating with the suction pipe is removably fitted, and a liquid discharge port of the discharge pipe is freely fitted into and removed from the hole in the vertical direction. A thermos flask using air pressure, which is configured such that the tip of the liquid guide pipe protrudes from the front of the outer case, and the air pressure inside the inner bottle is increased by the pressure of the bellows to take out the liquid inside the inner bottle to the outside, The liquid discharge port of the discharge pipe is located inside the drainage member inside the outer case, and the liquid guide pipe is connected to a first inclined pipe portion close to the liquid discharge port and a first inclined pipe that penetrates the outer case and protrudes forward. A second inclined pipe portion whose inclination angle is different from that of the second inclined pipe portion and a third inclined pipe portion whose inclination angle is different from that of the second inclined pipe portion of the tip opening of the liquid guiding pipe are integrally molded, and the third inclined pipe portion of the liquid guiding pipe is integrally formed. A thermos flask that uses air pressure and is characterized by having an inwardly curved curling part provided at the tip of the inclined pipe part.