JPS59115273A - Sealing plug for pressure vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION More specifically, the present invention relates to a sealing stopper suitable for storing contents in a pressurized container that are easily deteriorated and cannot be used all at once.

Conventionally, various types of sealing plugs for pressurized containers have been known, but they can be roughly divided into the following two types. In other words, sealing plates for pressure accumulator extinguishers, screw caps for refrigerant gas for coolers, and sealing plate types that are special for pressurized containers but cannot be re-corked once the caps are opened, such as for canned beer or canned cola. , screw-type valves for gas cylinders, valves for aerosols, and other types of valves that are not containers, such as water faucets, etc., and are reusable valve types that can be turned off again by reversing the valve once opened.

However, the former sealing plate type has a completely sealed container, so not only will the contents not leak for a long time, but
It has the advantage of preventing the intrusion of air, bacteria, moisture, etc. from the outside, and is less likely to cause deterioration of the contents. therefore,
It is very effective when used in products that require quality maintenance of the contents, and is also used in products where it is desirable to use up the entire amount of the contents at once.

However, such a sealing plate type is inconvenient because once the cap is opened, all the contents are released, and also has the disadvantage that it requires special equipment because a part of the sealing plate must be broken. There is.

On the other hand, the latter valve type, such as those used in aerosol products and gas cylinder products, has the advantage of being able to open and close freely and take out as much content as you want to use, but the structure Unless the structure is complicated and large, leakage of the contents cannot be avoided, and the disadvantage is that it is not possible to completely prevent air, bacteria, moisture, etc. from entering the interior from the outside through sliding parts, etc. .

The present invention provides a sealing stopper for a pressurized container that eliminates the drawback of sloping, allows the contents to be stored in a sealed state without deteriorating their quality, and allows the contents to be taken out intermittently and easily. .

That is, the sealing stopper of the present invention includes a sealing plate that is joined to the outer edge or the opening edge of the pressurized container, has a valve chamber formed in the center, and has a sharp breaking blade at the lower end. The valve mechanism includes a valve stem and a valve mechanism that opens and closes the valve by vertical movement of the valve stem, and the valve mechanism is configured such that a sealing part at the bottom of the valve chamber can be broken by a breaking blade part of the valve stem. The gist is that it is attached to the valve chamber of the sealing plate.

Hereinafter, the present invention will be described in detail with reference to the drawings, but the sealing plug of the present invention is not limited to these embodiments.

FIG. 1 is a schematic sectional view showing an embodiment of the sealing plug of the present invention;
FIG. 2 is a schematic sectional view showing another example of the sealing plate in the present invention, FIG. 6 is a schematic sectional view showing another example of the valve mechanism in the present invention, and FIG. 4 is a broken bottom end of the valve stem in the present invention. It is a schematic perspective view which shows another example of a blade part.

In FIG. 1, (1) is a sealing stopper, which is composed of a sealing plate (2) and a valve mechanism (3). The outer edge (4) of the sealing plate (2) is connected to the pressurized container (5) containing the contents (5).
It is joined (or double-sealed) to the opening edge (7) of 6). In this state, pressurized container (6
) is completely sealed. Is there a valve chamber (8) in the center of the sealing plate (2)? A sealing portion (9) whose wall thickness is thinner than that of the sealing plate (2) is formed at the bottom of the valve chamber (8). The valve chamber (8) has a valve stem σα and a spring (11
1, a gasket (12+, and a valve mechanism (
3) is installed. A sharp cutting edge (141) is formed at the lower end of the valve stem 00 to break the thin sealing part (9). A push button (151) is attached to operate the mechanism (3).The spring (1) always acts to push the valve stem α0 upward, thereby ensuring close contact and sealing between the valve stem O■ and the gasket (12+). The gasket (12) seals the passage αω that communicates with the outside air inside the valve stem (111), and also seals the gap between the valve lid αJ and the sealing plate (2). By caulking (2), the gasket is compressed downward and fixed.A pipe 0η is attached to the valve chamber (8) leading to the lower part of the pressurized container (6). .

When the push button 05) is strongly pressed, the valve stem 00) descends against the spring (11), and the tip of the breaking blade comes into contact with the sealing part (9). When push button α9 is roughly pressed firmly, the sealing part (9
) is broken. At this time, a fracture passage (181) is provided at the lower end of the valve stem 00) so that a passage sufficient for the contents (5) to pass between the valve chamber (8) and the inside of the pipe αη is secured. ing.

When the sealing part (9) is broken in this way, the pressurized contents (5) pass through the pipe αη, and then the crushed part passage 08),
Alternatively, it passes through the gap between the valve stem 00) and the sealing plate (2), and is emitted to the outside air through the passage 061 in the valve stem (10) and the passage in the push button (151).

On the other hand, when the push button 05) is stopped being pressed down, the valve stem 00) and the push button 05) are lifted upward by the elastic force of the spring and returned to their original positions. At this time, the valve stem 00
) in the passageway (1G+) is sealed by the gasket σ2, so the ejection of the contents (5) is stopped.

If you want to inject the content (5) again, you can press down the push button 05) again. At this time, the sealing part (9) of the sealing plate (2) has already been broken, so no great force is required to push down the push button 09, and it can be used intermittently like a normal valve type. .

The shape of the sealing plate, the shape of the valve stem, and the valve mechanism in the seal plug of the present invention are not limited to the embodiment shown in FIG. For example, the sealing plate in the present invention has a threaded groove (2a) formed on its outer edge (4) to be threaded into a threaded portion (5a) screwed onto the opening rim of the pressurized container (6). (see Figure 2), or where the thickness of the sealing part (9) of the sealing plate (2) is extremely thinner than that of other parts of the sealing plate (2) (see Figure 2). ) can be adopted.When the connection is made by screwing (see Figure 2), there is an advantage that the sealability of the container is improved and no other special equipment is required. Therefore, in the valve mechanism, the valve stem (10) may be divided or the thickness of the breaking blade portion 04 may be made thinner (see FIG. 6). Further, in the present invention, the sealing portion (9) of the sealing plate (2)
In order to make it easier to break the valve stem 00), the breaking blade part (II) at the lower end of the valve stem 00) is formed into the shape shown in Figure 4, the shape of the push button 05 is made larger, and the push button (151) is made larger.
A lever-type lever may be attached to the top of the unit.

The sealing stopper of the present invention has the advantage that, like the sealing plate type described above, it has a high sealed storage property and is unlikely to cause deterioration of the contents until it is used for the first time. - Once used, it has the advantage of being able to take out as much content as desired intermittently, similar to the valve type described above. Therefore, products whose contents are susceptible to deterioration and cannot be used all at once, such as foamable polyurethane compositions that harden by absorbing moisture in the air, and foods that are easily oxidized by air, are stored under pressure. perfect for.

As described above, the sealing stopper of the present invention has the excellent effect of being able to store the contents in a sealed state without deteriorating the contents, and also allowing the contents to be taken out intermittently and easily. The value is extremely great.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embodiment of the sealing plug of the present invention;
FIG. 2 is a schematic cross-sectional view showing another example of the sealing plate in the present invention, FIG. 3 is a schematic cross-sectional view showing another example of the valve mechanism in the present invention, and FIG. 4 is a broken bottom end of the valve stem in the present invention. It is a schematic perspective view which shows another example of a blade part. (Main symbols in the drawing) (1): Sealing plug (2): Sealing plate (3): Valve mechanism (4): Outer edge of sealing plate (5): Contents (6): Pressurized container (7): Opening rim of pressurized container (8): Valve chamber (9): Sealing section 00): Valve rod α4J: Breaking blade section u5): Push button aη: Pipe 08); Crushing section passage Figure 1 Diagram 2 Oro Diagram Said 4 Diagram

Claims (1)

[Claims] 1. It has a sealing plate whose outer edge is joined to the rim of the opening of the pressurized container, a valve chamber is formed in the center, and a valve stem with a sharp cutting edge formed at the lower end, and The valve mechanism includes a valve mechanism that opens and closes the valve by vertical movement of the valve stem, and the valve mechanism is attached to the valve chamber of the sealing plate so that the sealing part at the bottom of the valve chamber can be broken by the breaking blade part of the valve stem. Sealing stopper for pressurized containers.