JPS585553Y2 - Water stop device for thermos flasks etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water stop device that prevents water from leaking when a thermos flask or the like falls over.

Some conventional thermos flasks were equipped with a water-stopping device using a water-stopping ball as shown in Figure 1, but the drawback of such thermos flasks is that if they fall over, the water-stopping effect may not be achieved depending on the direction. There were times when I didn't.

This is because, for example, the water stopper ball moves only in the direction of the dispensing liquid path, so if the thermos bottle falls forward, it will have a water stop effect, but if it falls sideways, gravity will This is because the water stop ball does not work properly and the water stop ball does not move in the water stop direction.

The object of the present invention is to eliminate the above-mentioned drawbacks and to provide a device that exhibits a reliable water-stopping effect even when a thermos flask or the like falls in any direction.

To explain an embodiment, 1 is a main body of a thermos flask, and a medium bottle 2 is accommodated in the main body 1.

Reference numeral 3 denotes a saucer member, which is attached to the upper end of the main body 1 and presses the upper end of the medium bottle 2 via a backing.

Reference numeral 4 denotes a lid body, which is pivotally connected to the saucer member 3 at the rear thereof by a pivot shaft 5 so as to be openable and closable.

6 is a bellows pump housed in the lid body 4;
A pressing plate 7 faces the top surface of the lid body 4.

Reference numeral 8 denotes a lock lever for ensuring that the lid body 4 is closed.

A stopper 9 is detachably attached to the saucer member 3 via a backing, and closes the mouth 10 of the medium bottle 2.

The interior of the plug body 9 is divided into a ventilation cavity 11 and a water passage cavity 12, and the ventilation cavity 11 communicates with the inside of the bellows pump 6 when the lid body 4 is closed, and discharges air from the pump 6 into the medium bottle 2.

A holding chamber 14 for a water stop ball 13 is provided in the upper part of the water passage cavity 12, and the water stop ball 13 is held in the holding chamber 14 so as to be movable back and forth. The water passage hole 15 to the pipe 17 is positioned.

The water passage hole 15 is formed in a partition plate 25 fixed to the side wall of the holding chamber 14 of the plug body 9.

The movement path of the water stop ball 13 is slightly uphill from the retracted position of the water stop ball 13 to the forward position, that is, toward the water passage hole 15, and the water stop ball 13 is always maintained at the retracted position in the holding chamber 14. .

Therefore, when the position of the water stop ball 13 is higher than the position of the water passage hole 15, the water stop ball 13 closes the water passage hole 15 and shuts off water.

16 is a pumping pipe attached to the lower end of the water passage cavity 12;
It is hanging down inside the medium bottle 2.

Reference numeral 17 denotes a spouting tube, which has a distal end facing the outside and a connecting portion 2 that is enlarged with a stepped portion on the proximal end side.
6, and the connecting portion 26 is fitted with an annular protruding wall 23 formed on the side surface of the plug body 9 surrounding the partition plate 25, whereby a spout pipe is inserted into the water passage hole 12 of the plug body 9. 17 are connected laterally and 18 are connected.

A disc-shaped water stop rotating body 19 is accommodated and held within this connecting portion 18 .

The water-stop rotating body 19 is held by attaching a rotating shaft 20 to the partition plate 25.
The rotary shaft 20 is located at the center of the connecting portion 18, and the water-stopping rotary body 19 is inserted into the rotary shaft 20, thereby rotatably holding the water-stopping rotary body 19.

A through hole 21 is formed in a part of the water stop rotating body 19, and a weight 22 is housed in an axially symmetrical position to make the center of gravity eccentric.

The position of the through hole 21 is determined by the eccentric water stop rotating body 19.
is the position where the thermos flask is in an upright position and communicates with the water passage (L15).

In this state, that is, in the normal upright position of the thermos, the through hole 21 and the water passage hole 15 coincide and communicate with each other, and the liquid injection path 24 is connected to the water pumping pipe 1169 and the water passage hole 12.
It communicates with the outside through a water passage hole 15 and a spout pipe 17.

To explain the operation of the device having the above configuration, when the main body 1 is in an upright position, the water stop ball 13 is in a retracted position with respect to the water passage hole 15, and the water stop rotor 19
The through hole 21 is in communication with the water passage hole 15 in a stable position.

Therefore, in this state, the liquid injection path 24 communicates from the inside of the medium bottle 2 to the outside of the thermos bottle, and when the presser plate 7 is pressed, the bellows pump 6
The air inside is discharged into the medium bottle 2 through the ventilation cavity 11, and the hot water inside the medium bottle 2 is poured out through the liquid injection path 24.

On the other hand, when the thermos flask falls, for example, when the thermos flask falls forward and the water stop ball 13 is placed above the water hole 15, the water stop ball 13 moves and closes the water hole 15.

In addition, if the thermos flask falls sideways and the water stop ball 13 does not rise above the water passage hole 15, the water stop ball 13
does not close the water passage hole 15, but instead, the water stop rotating body 19 rotates relative to the water passage hole 15, so that the through hole 21
is inconsistent with the water passage hole 15, and the water passage hole 15 is blocked.

According to this invention, when the thermos flask falls forward, the water stop ball closes the water hole, and when it falls sideways, the water stop rotation body closes the water passage hole. No matter which direction the thermos flask falls, hot water will not leak out.

Therefore, there is no chance of getting burned or staining the floor due to leaking hot water.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing the embodiment, and FIG. 2 is a perspective view showing the position of the water-stop rotor in the stopper portion of FIG. 1. 2... Medium bottle, 9... Stopper, 10...
... Bottle mouth, 12 ... Water passage cavity, 13 ...
・Water stop ball, 14... Holding chamber, 15...
...Water hole, 16... Lifting pipe, 17...
... Pour pipe, 18 ... Connection part, 19 ...
...Water stop rotor, 20... Rotating shaft, 21...
...Through hole, 24... Liquid injection path.

Claims (1)

[Scope of utility model registration request] □ A water passage hole is provided in the stopper that closes the mouth of the medium bottle, and a water pumping pipe is suspended from the water passage hole, and a pouring pipe is connected laterally to communicate the liquid injection path to the outside. A holding chamber for a water stop ball is formed in the water passage cavity, and the water stop ball is always held in the tilted backward position thereof, and a water flow hole to the spout pipe is provided in the forward position of the water stop ball, A water-stopping rotating body having an eccentric center of gravity within a connecting portion between the water passage cavity and the spouting pipe is rotatably held around the liquid injection path direction, and is formed as a part of the water-stopping rotating body. A water stop device for a thermos flask or the like, characterized in that a through hole is always communicated with the water passage hole.