RU2091281C1 - Extensible stopper - Google Patents

Abstract

FIELD: storage of substances; sealing of glass vessels. SUBSTANCE: extensible stopper has cover fitted on vessel neck, flexible material collar engaging with inner surface of neck, base in form of truncated cone arranged inside collar and cup rigidly coupled with base. Cup has also shape of truncated cone. Stopper has also aligning screw with thrust head passing through cover and coupled with base for displacement. Thrust head of screw is arranged in cup for free rotation. It is expedient to make recess in upper part of cover whose shape should be identical to shape of vessel bottom and to connect cover with collar by means of circular shaped slot and circular projection arranged in slot. EFFECT: improved reliability and convenience of use. 3 cl, 2 dwg

Description

 The invention relates to a storage container used for sealing glass vessels.

 Known screw closure for containers with a cylindrical neck, ed. N 212888 according to the application N 1063161 / 28-13 of 03/21/66, in which a cap with a sealing cylinder is used.

 The closest in technical essence and the achieved effect to the claimed expandable plug is an expandable plug, protected by US patent N 3618811 B 65 D 39/12, published in 1971

 Known cork contains an elastic cuff made in the form of a cylinder (13) with a conical inner surface in direct contact with the inner surface of the product (10), for which the cork is intended to be closed, a sealing element (12).

 The sealing element (12) is a conical shaped base plate, which is located inside the cuff, a cover with an opening in the central part is installed on the neck of the product through which a centering screw (18) passes, the head (19) of which is connected to the base.

 A disadvantage of the known expandable cork is that it does not provide reliable sealing of the container, since the placement of the centering screw on the free end of the base can lead to distortions.

 The objective of the proposed design of expandable cork is to increase the reliability of storage of the product and ease of use of containers for long-term storage of the product.

 Common features of the proposed expandable plug: the expandable plug contains a lid mounted on the neck of the container, a cuff of elastic material in contact with the inner surface of the neck, a base in the form of a truncated cone and a centering screw with a thrust head passing through the lid and connected to the base for it movements relative to the cuff.

 Distinctive (sufficient) features: the expandable cork is equipped with a glass in the form of a truncated cone that is rigidly connected to the base, and the thrust head of the centering screw is placed in the glass with the possibility of free rotation.

 A particular case of expandable cork is the execution in the upper part of the lid of the recess, the configuration of which is identical to the configuration of the bottom of the container, and the connection of the lid with the cuff by means of an annular groove of a shaped shape and an annular protrusion placed in the groove.

 The expandable plug is shown schematically in FIG. 1, which shows a general view of it in the working position, and FIG. 2 in the initial position. The expandable plug contains an elastic cuff (1), a base (2) connected by screws (3) with a hollow glass (4), a thrust head (5) of the centering screw (6), a cover (7) with an annular figured groove (8) and a central screw hole for screw.

 The glass (4) in the upper part is provided with a through hole for the centering screw, and in the lower part there is a recess for the thrust head (5) of the centering screw (6), which ensures its free rotation.

 The centering screw (6) is installed by the stop head (5) in the glass (4), which is then fixed to the base (2) with screws (3), after which an elastic sleeve (1) is mounted on the base system (2) of the glass (4).

 The entire system indicated is fastened with a centering threaded screw (6) to the lid (7) and mounted on the neck of the container.

 The lid (7) in the upper part has an external configuration that allows the installation of a subsequent container, i.e. they have an identical configuration.

 To increase reliability, the connection of parts (1) and (7) of the expandable plug is made using ring shaped notches-protrusions on the reciprocal parts.

 The proposed solution improves the reliability of the preservation of the product and the ease of use of containers.

Claims (3)

 1. An expandable plug containing a lid mounted on the neck of a container, a cuff made of elastic material in contact with the inner surface of the neck, a truncated cone-shaped base located inside the cuff, and a centering screw with a thrust head passing through the lid and connected to the base to move it relative to the cuff characterized in that it is equipped with a glass in the form of a truncated cone that is rigidly connected to the base, and the thrust head of the centering screw is placed in the glass with the possibility of free about rotation.  2. The cork according to claim 1, characterized in that a recess is formed in the upper part of the lid, the configuration of which is identical to the configuration of the bottom of the container (container).  3. The cork according to claim 1, characterized in that the connection of the lid with the cuff is made by means of an annular protrusion placed in the groove.

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