JPS585929Y2 - Containers that adapt to the expansion and contraction of liquids - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container for enclosing a liquid, and more particularly to a container that adapts to the expansion and contraction of the liquid to prevent bubbles from forming in the enclosed liquid.

An object of the present invention is to provide a container that can adapt to the expansion and contraction of liquid due to temperature changes with an extremely simple structure.

In order to satisfy the above object, the present invention is constructed as follows.

That is, in the present invention, an O-ring 2 is fitted to the outer circumferential surface 1' of a container body 1 containing a liquid, and an O-ring 2 is fitted to the inner circumferential edge 3' of a lid 3 applied to the container body 1.
This is a container that adapts to the expansion and contraction of liquid, in which the O-ring 2 is press-fitted to seal the container, and the lid 3 moves due to temperature changes, changing the internal volume.

The one shown is a ship magnetic needle in which the present invention is applied.
The container body 1 and lid 3 are molded from transparent acrylic resin, and a shaft 4 is erected in the center of the container body 1 to form a necessary pointer 5'.
Center support member 6 of transparent pointer connector 5 with only ink displayed
is mounted on the shaft 4, and the permanent magnet pieces I are held by a retaining frame 8 so that the permanent magnet pieces 7 are positioned on the left and right sides of the center support member 6.

□A fitting groove 9 with a 0' J song is formed on the outer peripheral surface 1' of the container body 1, and the inner peripheral edge 3' of the lid 3 is crimped onto the 017 ring 2.

Since the present invention has the configuration described above, as the volume of the liquid such as isoparaffin changes due to temperature changes, the sealing effect of the O-ring 2 is 1\, and the lid moves up and down, and the internal volume changes.

Therefore, generation of bubbles can be prevented.

In addition, in the past, separate air chambers such as diaphragms and chambers were formed to remove air bubbles, but the former uses thin material and is easily damaged, and because of its dissimilarity, there is a risk that the adhesive part may peel off, and it is difficult to form it into a spherical shape. is not possible.

The latter seals the air chamber with a backing, but there are various drawbacks such as air sometimes rising beyond the backing and making it difficult to balance the volume of the upper and lower chambers. All of the above defects can be eliminated,
There are no particular restrictions on the shape, and the structure is extremely simple and easy to manufacture.

Furthermore, like the magnetic needle in the illustrated embodiment, it is made entirely of transparent material, so even if it is placed on a map, it will not cause any trouble.

Therefore, the practical value is improved.

[Brief explanation of drawings]

The drawings show a container adapted to the expansion and contraction of a liquid according to the present invention implemented in a magnetic needle for ships, and FIG. 1 is a partially cutaway plan view, and FIG. 2 is a longitudinal sectional front view. 1...Container body, 1'...Outer peripheral surface, 2
...0 ring, 3...lid, 3'...
...Inner periphery.

Claims (1)

[Scope of utility model registration request] An O-ring 2 is fitted onto the outer circumferential surface 1' of the container body 1 that houses the liquid, and the O-ring 2 is pressed against the inner circumferential edge 3' of the lid 3 applied to the container body 1 to seal it. A container adapted to the expansion and contraction of a liquid, characterized in that it moves and changes its internal volume.