JPS5934425Y2 - Pneumatic feeding device for liquid pumping type liquid heat-insulating container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air pressure feeding device for a liquid pumping type liquid heat-insulating container (for example, a so-called air pot).

The present invention exposes the top plate of a bellows-type air pump disposed inside the lid body on the top surface of the lid body, and engages the air intake port formed in the top plate so as to be able to move up and down relative to the mouth edge of the air pump. An intake valve that is stopped and closes the intake port when moving downward is rotatably disposed, and a locking portion that restricts the downward movement of the intake valve is provided at a suitable position on the edge of the intake port 1. A liquid pump having a simple structure and an easy-to-operate safety locking mechanism, characterized in that air pumping is disabled unless the engagement of the intake valve with the engagement part is released. The object of the present invention is to provide an air pressure feeding device for a liquid heat-insulating container.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a liquid pumping type liquid heat-insulating container equipped with an air pressure feeding device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a so-called air pot, which is a concrete example of a liquid pumping type liquid heat-insulating container.

In the figure, reference numeral 1 denotes a pot body which is a container body, 2 a lid body that covers the upper part of the pot body 1 in an openable and closable manner, 3 an outer case forming the outer peripheral surface of the pot body 1, and 4 a pot body 1.
5 is a lower mouth member that covers the upper part of the outer case 3 and the liquid container 4; 6 is an air pump disposed inside the lid body 2; 1; 10 is an inner plug with a ventilation passage 8 and a water passage 9 inside, and 11 is a liquid pumping pipe. This is a series of liquid discharge passages consisting of an in-stop conduit 9 and a liquid spout pipe 12.

The air pump 6 includes a bottomed cylindrical bellows 13 that is expandable and retractable, and a top plate 14 that closes the upper end opening of the bellows 13.
An intake port 15 is formed in the center of the top plate 14, while a discharge port 16 is formed in the center of the bottom surface of the bellows 13.

The air pump 6 is disposed in a bottomed cylindrical recess 17 formed on the upper surface of the lid 2, and exposes the top plate 14 to the upper surface of the lid 2, and connects the discharge port 16 to the recess 11.
It is clamped and fixed via a seal member 19 to a hole 18 formed in the bottom surface.

The air pump 6 acts as an air pumping device that pumps air into the liquid container 4 by its expansion and contraction action.

The intake port 15 is formed in the center of a recess 20 formed by recessing the center of the top plate 14 into a cylindrical shape as shown in FIG. An intake valve 21 is arranged to be vertically movable.

Further, on the outer periphery of the recess 20, there is an arc-shaped locking part 22 that is lower than the top surface of the lid 2 and higher than the recess 20, and the locking part 22 is continuous in the circumferential direction and is connected to the top surface of the lid 2. kara recess 20
A vertical engagement groove 23 extending to the upper surface is formed.

On the other hand, the intake valve 21 includes a disk-shaped valve portion 24 and the valve portion 2.
4 consists of leg parts 25, 2525 integrally protruding from the lower surface.

A handle 26 is integrally provided on the outer periphery of the valve portion 24, and claw pieces 27 are integrally formed on each of the leg portions 25.

This intake valve 21 has its leg portions 25 and 2525.
By fitting into the intake port 15 and locking the claw pieces 27, 27° 2I to the edge 15a of the intake valve 150, the intake valve 21, which is arranged to be vertically movable and rotatable, can be moved downwardly. When the valve portion 24 comes into contact with the upper surface of the intake roll edge 15a,
It acts to close the intake port 15.

When the air pot is not in use, the handle 26 is locked to the upper surface of the locking part 22 to prevent the intake valve 21 from moving downward.
6 matches the engagement groove 23, the intake valve 21 is enabled to move downward.

Reference numeral 28 is a spring for restoring the bellows.

As shown in FIG. 3, the locking portion 22 serving as a means for restricting the downward movement of the intake valve 210 is formed at the edge of the recess on the upper surface of the top plate 14, and the handle 26 on the side of the intake valve 21 is made to protrude in an L-shape. It may be configured as follows.

Next, the action of the illustrated air pot will be explained.

When the air pot is not in use, the handle 26 of the intake valve 21 is rotated in the direction of arrow A (see FIG. 2) to lock the handle 26 in the locking portion 22.

Then, the intake valve 21 becomes unable to move downward and cannot close the intake port 15, so even if the top plate 14 and the top surface of the intake valve 21 are pressed, the air inside the air pump 6 leaks out from the intake port 15. This makes it impossible to feed pressurized air into the liquid container 4.

Therefore, it is possible to prevent the liquid (especially hot water, etc.) in the liquid container 4 from being inadvertently discharged to the outside.

Also, when trying to use the air pot, the intake valve 2
When the handle 26 of the intake valve 2 is rotated in the direction of arrow B (see FIG. 2) and the handle 26 and the engagement groove 23 are aligned, the intake valve 2
1 becomes movable downward and can close the intake port 15.

When the top plate 14 is pressed together with the intake valve 21 in this system, pressurized air is forced into the liquid container 4 from the air pump 6, and the pressurized air causes the liquid in the liquid container 4 to pass through the liquid discharge passage 10. It can be led out to the outside.

In the above description, an air pot is used as an example, but it goes without saying that the present invention can also be applied to a liquid pump type kettle, etc.

Next, the effects of the air pressure feeding device in the liquid pumping type liquid heat-insulating container of the present invention will be explained.

That is, according to the present invention, (1) The air intake port 15 of the air pump top plate 14 exposed on the upper surface of the lid body 2 is engaged with the mouth edge 15a thereof so as to be movable up and down, and when the lid body 2 is moved downward, the air intake An intake valve 21 that closes the port 15 is rotatably disposed, and a locking portion 22 that restricts the downward movement of the intake valve 210 is provided at a proper position on the intake roll edge 15a to lock the intake valve 21. Since the operation of the air pump 6 can be disabled or enabled by engaging and disengaging with the portion 22, it is possible to provide an air pressure feeding device having a very simple structure and a safety lock mechanism with a small number of parts. can.

(2) The air pot can be made usable or unusable simply by rotating the intake valve 21 provided at the intake port 15 of the air pump top plate 14 exposed on the top surface of the lid 2. This greatly simplifies the operation.

It has such practical effects.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of the upper part of a liquid pumping type liquid heat-insulating container equipped with an air pressure feeding device according to an embodiment of the present invention, and FIG.
FIG. 3 is an exploded perspective view showing a modification of the air pressure feeding device. 1... Container body, 2... Lid, 4...
...Liquid container, 6...Air pump, 10.
...Liquid discharge passage, 14...Top plate, 15
...Intake port, 15a...Intake port edge, 21...Intake valve, 22...Locking portion.

Claims (1)

[Scope of utility model registration request] A top plate 14 of a bellows-type air pump 6 disposed in a lid 2 that covers the upper part of the container body 1 is exposed on the top surface of the lid 2, and an air intake port 15 is formed in the top plate 14, so that the air pump 16. In the liquid pumping type liquid heat insulating container which presses the top plate 14 while closing the intake port 15 when activated, the intake port 15 has a container that is vertically movably locked to the mouth edge 15a of the container and has a lower part. An intake valve 21 that closes the intake port 15 when the intake valve 210 is moved is rotatably disposed, and a catch that restricts the intake valve 210 from downward movement by 70 degrees at a predetermined rotational position is provided at a proper position on the intake rolling edge 15a. An air pressure feeding device for a liquid pumping type liquid heat-insulating container, characterized in that a stop portion 22 is provided.