JPH0737261B2 - Bottom automatic shut-off valve for container for taking out pasty or liquid substances - Google Patents

Description

The present invention relates to a bottom automatic closing valve for a paste-like or liquid substance take-out container into which a discharge port of a storage container can be inserted.

Such a take-out container equipped with a bottom automatic shutoff valve is used as, for example, a mixing container or a mixing container for a hairdressing preparation such as a hair dye, and in its use example, a large number of storage containers are provided in the mixing container. The substance to be mixed, for example, the mixing component for the hair dye, is successively taken out from the device. At this time, when dealing with substances that react with oxygen in the air, substances that chemically react with each other, or even partially strongly colored substances, avoid contact with air as much as possible to avoid contamination. It is important to take it out directly into the container.

A known automatic bottom closing valve of this type is made up of a number of parts, as also shown in German Patent Publication No. 2827610, which are combined to form an opening at the bottom of the take-out container. It is inset. Since spring pressure is applied to the closure of the valve against the closure-opening, a force against the spring pressure must be applied to open the closure valve.
Further, even in areas other than the closed portion, the discharged matter may intrude within the range of the spring pressure. It is impossible to completely clean the inside of such a valve, and even if it can be done, it is very expensive. If the substance to be taken out cannot be completely removed in this case, the residue may impair the function of the valve, or impurities may be mixed in the next taking-out step. Furthermore, the known valve has to be assembled from a number of parts,
It is also expensive to manufacture and assemble.

In view of the above points, the present invention has been made with the object of providing an automatic shutoff valve having a simple structure and function and capable of reliably performing a sealing function.

According to the invention, according to the invention, a valve is an einstckig cohesive lip valve made of an elastic material, comprising two cohesive lips, the cohesive lips being central in the closed state. This is solved by the fact that it is possible to make a close contact with each other along the surface, and that a ring-shaped close contact portion having the same axis as the central axis of the valve is provided at the lower part of the close contact lip.

Even without the addition of special springs or similar parts, the closed lips can be closed in a straight line in the closed state by virtue of the elastic action of the single-piece elastic flap made of elastic material. In the open state, the close contact lips are in close contact with the outlet of the storage container. Further, a ring-shaped close contact portion is provided below the close contact lip, and the close contact with the discharge port of the storage container ensures the sealed state. That is, the self-closing valve according to the present invention has the advantage of the ring-shaped contact portion, that is, creates a very good sealed state by interacting with the outlet of the storage container, and the linear contact lip. It has all the advantages of, that is, perfect close contact in the closed state.
Therefore, the self-closing valve according to the present invention can be applied to the connection with the outlet having a relatively large diameter without leaving any damage to the sealing action at the time of the subsequent closing.

The manufacture and assembly of the self-closing valve according to the invention is very simple. That is, it is molded from rubber or a similar material as a single piece and can easily be fitted into the opening in the bottom of the dispensing container.

In one embodiment of the invention, the close-fitting lip is designed such that, with respect to the dispensing container, the inner side projects above the surface of the valve. This brings the close contact line of the close lip to a high position. The resulting pressurization of the valve by the substance withdrawn has the advantage that the closing action of the valve is further enhanced.

In the ring-shaped contact portion, a frustoconical contact surface that extends downward can be provided. This contact surface interacts with a conical trapezoidal contact surface or a ring-shaped contact surface of the discharge port of the storage container facing the contact surface.

In yet another embodiment of the present invention, the ring-shaped sealing portion is provided with a ring-contacting lip that protrudes inwardly and can engage snugly with the cylindrical outer wall of the outlet. The ring-contacting lip is provided at a radial distance from the portion of the valve that supports the contacting lip. Since this ring-contacting lip gives a very good contact with the outlet, it can be preferentially applied especially when the substance to be taken out is a dilute liquid.

The invention will now be described in more detail on the basis of an exemplary embodiment shown in the drawing.

FIG. 1 shows a bottle-shaped take-out container or a compounding container (1), in which a paste-like or liquid substance from a storage container (2) (only partly shown in FIG. 1) is shown. , Hair dye, for example.

A closing valve (4) made of rubber or a synthetic resin having elasticity is formed in the opening (3) at the bottom of the take-out container (1). The closing valve (4) is engaged with the periphery of the bottom opening (3) through its ring-shaped projections (5) to (6).

The closure valve (4) comprises two cohesive lips (7) which, in the closed state, mate with each other along the central plane. A ring-shaped truncated cone-shaped contact portion (8) is provided below the contact lip (7).

When the take-out container (1) is mounted on the storage container (2),
By the discharge port (9) of the storage container (2), both lips (7)
Is pressed, which causes the closing valve (4) to open (see FIGS. 3 and 4). And as shown in FIG.
A truncated cone-shaped contact surface (10) provided at the outlet (9)
And the ring-shaped close contact part (8) of the stop valve (4) are in close contact with each other. In this state, the paste-like or liquid substance is delivered from the stock container (2) to the take-out container (1). In this case, for example, by applying pressure through the take-out container (1) onto the outlet (9) of the storage container (2),
The substance to be extracted in the storage container (2) can be sent upward.

As is clear from FIG. 1, with respect to the take-out container (1), the inner side of the contact lip (7) projects higher than the valve (4) surface.

In the embodiment shown in FIGS. 5 and 6, the extraction container (1) mounted on the storage container (2).
1) is a mixing container. This is a plurality of storage containers (2)
By successively mounting on top, for example, the mixed components of the hair dye can be taken out one after the other.

As is apparent from the previously described embodiments, the bottom closure valve (4) of the dispensing container (11) is provided with two cohesive lips (7), and in the closed state these coherent lips (7) are in a straight line. Although it is in close contact with, it can be opened by inserting the discharge port (9) of the storage container (2). In this case as well, a ring-shaped conical trapezoidal contact portion (8) is provided at the bottom of the contact lip (7), and the cone of the discharge port (9) opposite to this when mounted on the storage container (2). It interacts with the trapezoidal contact surface (10).

However, unlike the previously described embodiment, the bottom closure valve shown in FIGS. 5 and 6 is provided with a cylindrical part (12) at its lower part, and further at its lower part an inner part. A ring-contacting lip (13) is provided which protrudes to the outside. The ring contact lip (13) is in close contact with the cylindrical outer wall (14) of the outlet (9) before the contact lip (7) is pushed open by the upper end of the outlet (9). This state is shown in FIG. Thus, before the discharge port (9) pushes up the contact lip (7) and opens the bottom closure valve (4), the ring contact lip (13) and the cylindrical outer wall (14) have already been opened.
A perfect close contact is created between the two. Therefore, this embodiment is particularly suitable for liquid substances.

[Brief description of drawings]

FIG. 1 is a side view of a bottle-shaped take-out container mounted on a storage container, and a vertical cross section thereof is partially shown. The dispensing container is equipped with a bottom shut-off valve according to the invention. FIG. 2 is a cross section taken along the line II-II in FIG. FIG. 3 is a partial vertical sectional view similar to FIG. 1, but in this case, the bottom closing valve is pushed open by the discharge port. FIG. 4 is a cross section taken along the line IV-IV in FIG. FIG. 5 is a vertical cross-sectional view of a mixing container equipped with a bottom shutoff valve, and the mixing container is mounted on the discharge port of the storage container. FIG. 6 is a vertical sectional view similar to FIG. 5, but in this case the bottom closing valve is pushed open by the outlet. (1) …… Take-out container (2) …… Storage container (3) …… Opening part (4) …… Closed valve (7) …… Closed lip (8) …… Closed part

Claims (2)

[Claims] 1. A valve for automatically closing a bottom surface of a container for taking out paste-like or liquid substances, wherein the valve is opened to insert the discharge port of the storage container into the valve so as to fill the taking-out container. The valve (4) is a single-piece, cohesive lip valve made of an elastic material, and has two cohesive lips (7), and these cohesive lips (7) are along the central surface in the closed state. That they can be in close contact with each other, and that a ring-shaped intimate contact portion (8) or (13) having the same axis as the central axis of the valve (4) is provided below the intimate lip (7) The discharge port (9) has a frustoconical or other ring-shaped contact surface (10), whereby the contact portions (8) (13) and the contact surface (10) work together, and the valve (4) ) And the discharge port (9) are achieved. Surface self-closing valve. 2. A bottom automatic closing valve according to claim 1, characterized in that the inner side of the close-out lip (7) of the take-out container projects from the surface of the valve (4).