Coupling for corrugated flexible hose

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 25/00 (2006.01) F16L 33/26 (2006.01)

Patent

CA 2359619

The invention relates to a hose coupling comprising a clip consisting of at least two semi-cylindrical cups (1a, 1b) enclosing the hose and a clamping lever (3) which via a bolt (4) is articulated on the free peripheral end of one of the semi- cylindrical cups (1a, 1b). To create a force-fit connection between the hose and a sleeve (8) inserted into same, the clamping lever can be connected to the other free peripheral end of the corresponding semi-cylindrical cup (1a or 1b) via a closing spring (6). The clamping jaw (1) can be fixed on the sleeve (8) in an axial direction by means of a flange which is mounted on said sleeve (8) in such a way that it cannot be axially displaced. The aim of the invention is to provide such a hose coupling which has a simple structure, is economical to produce and can be used as quick-release coupling for corrugated flexible hose. To this end, the clip comprises several semi- cylindrical cups (1a, 1b) and is configured as a single-piece clamping jaw (1) made of a plastic material. The connection(s) between the semi-cylindrical cups (1a, 1b) are configured as integral hinge(s), the hose is a corrugated flexible hose (9) and the semi-cylindrical cups (1a, 1b) on the inside of the clamping jaw (1) present a helical groove (10) which receives the corrugations of the corrugated flexible hose (9) and in this way hold said hose (9) in a form-fit connection.

L'invention concerne un raccord pour tuyaux comportant une bride composée d'au moins deux coques partielles (1a, 1b) et entourant le tuyau, ainsi qu'un levier de serrage (3) articulé sur l'extrémité périphérique libre de l'une des coques partielles (1a, 1b) par l'intermédiaire d'un boulon (4). Pour créer une liaison de force entre le tuyau et un manchon (8) inséré dans le tuyau, le levier de serrage peut être relié à l'autre extrémité périphérique libre de la coque partielle correspondante (1a ou 1b) par l'intermédiaire d'un ressort de fermeture (6). La mâchoire de serrage (1) peut être fixée sur le manchon (8) en sens axial au moyen d'une collerette immobile axialement. L'invention vise à fournir un raccord pour tuyaux de structure simple, de production économique et pouvant servir de raccord rapide pour des tuyaux à spirale d'acier. A cet effet, le collier présente plusieurs coques partielles (1a, 1b) et est fabriqué d'une pièce en plastique sous forme de mâchoire de serrage (1). Les liaisons entre les coques partielles (1a, 1b) sont réalisées sous forme de charnières à film, le tuyau est un tuyau à spirale d'acier (9) et les coques partielles (1a, 1b) présentent à l'intérieur de la mâchoire de serrage (1) une rainure en spirale (10) servant à loger la spirale d'acier du tuyau (9) et enveloppent ainsi le tuyau à spirale d'acier (9) avec liaison de forme.

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