DE9206287U1 - Container with closure - Google Patents

Description

The invention relates to a container with a connection sleeve for accommodating a safety closure valve. In the usual configuration, these containers do not have any further connections. The connection sleeve is usually arranged centrally in the upper connection cover. Such containers are used in the beverage industry as well as in the chemical and mineral oil industries for transporting liquids, pastes and granules.

To ensure that no confusion can occur when connecting the containers, the geometric relationships of the external components of the safety closure valve are designed differently. When connected and open, the valve itself provides a flow path for the medium and the conveying pressure gas or for ventilation during pumping. The safety-related design of such closures also provides that the closure itself can only be removed from the connection sleeve by authorized persons using special tools. Previously known solutions for the mechanical connection of the closure and the connection sleeve work either with a threaded connection and an additional locking ring that can only be removed with a special tool, or with a bayonet guide and an additional locking ring that can only be removed with a special tool.

The generic containers with this closure are intended to replace the previously used disposable container systems as reusable container systems. These previous disposable container systems are equipped with simple closures, e.g. as screw caps made of metal or plastic in conjunction with a barrel sleeve or as clip-on plastic disposable closures.

At the beginning of the conversion from disposable container systems to reusable container systems, the existing filling systems are only designed for filling the containers using simple closures.

On the one hand, the existing disposable containers should be replaced by reusable containers as quickly as possible, but on the other hand, the filling systems cannot be converted so quickly and generally from filling via simple closures to safety closures. Because a large number of different containers have to be converted. This cannot be done at a single point in time. The conversion of the closures themselves must take place continuously.

This results in the task of equipping reusable containers with a container connection that is generally intended for use with the safety closure valve, but which are also equipped with the option of using the simple closures that have been used so far, so that they can still be filled on the existing systems for filling containers with simple closures during the container conversion phase, i.e. the mixed filling of disposable and reusable containers.

This task is solved by inserting an adapter bushing into the container connection, which has the same holding, sealing and securing elements as the safety closure valve and which has different receiving elements for simple closures on its outer opening edge. Using this adapter bushing makes it possible to use reusable containers with a connection for safety closure valves and still use the previously used simple container closures tailored to the existing filling system.

Only at a point in time when all disposable containers have been converted to reusable containers and the filling device can then generally be converted to filling reusable containers via the safety closure valve1, the adapter bushings are removed from the reusable containers using the necessary special tools and the safety closure valves are installed.

An embodiment of the invention is described in more detail below with reference to Figs. 1-4.

Show it:

Fig. 1 a standing container with a connection in the upper lid

Fig. 2 a partial section through the container connection

with inserted adapter socket and attached ⁴ single lock

Fig. 3 and 4 Variants of container connection sleeve and adapter socket

The upright container, designated as a whole with (1), has a container connection (3) in its upper lid (2). The container connection, designated as a whole with (3) (Fig. 2), essentially consists of the connection sleeve (5), which is welded into the upper lid (2) via the weld seam (4), and the adapter bushing (6) built into the connection sleeve (5). This adapter bushing (6) has on its outer contour all the holding, sealing and securing elements of the safety closure valve for its installation in the connection sleeve (5), but without the valve function fittings. The adapter bushing (6) therefore usually has an open inner cross-section. The holding, sealing and securing elements can have the form of a bayonet-sliding gate closure (Fig. 2). However, they can also correspond to a different type of fastening of the safety shut-off valve, e.g. with an internal thread (13) in the connection sleeve (5) (Fig. 3) or an external thread (14) on the connection sleeve (5) (Fig. 4). The seal (8) between the connection sleeve (5) and the adapter bushing (6, 11, 12) has the same position as the seal when the safety shut-off valve is used. The same applies to the design of the holding and securing elements. These are, for example, the bayonet guide (7) and the locking ring (17) as shown in (Fig. Z) .

The edge formation (9) of the outer opening (15) of the adapter bushings (6, 11, 12) has receiving and holding elements (16) for a sealing and secure fastening of simple container closures (10).

In the event that the containers are to be converted from simple closures (10) to safety closure valves, the adapter bushings (6, 11, 12) are removed using the appropriate assembly tools and the appropriate safety closure valves are installed in the connection sleeves (5).

Claims (3)

Container with a connecting sleeve for receiving a safety closure valve, characterized in that an adapter bushing (6, 11, 12) is inserted into the connecting sleeve (5) using the holding (7, 13, 14), sealing (8) and securing elements (17) of the safety closure valve, which has different receiving elements (16) for single closures (10) on its outer opening edge (9). 2. Container according to claim 1, characterized in that the receiving elements (9, 16) on the adapter socket opening (15) are designed as screw threads. 3. Container according to claim 1, characterized in that the receiving elements (9, 16) of the adapter socket opening (15) are designed as a snap-on sealing connection.