Coupling for connecting hydraulic ducts

US6964435B2 · kind B2 · utility

Assignee

• Walterscheid Rohrverbindungstechnik GmbH · DE

Inventors

• Diethard Wolf · Lohmar, DE
• Jörg Altenrath · Lohmar, DE
• Recep Macit · Mülheim an der Ruhr, DE

Key dates

• Filing date: Feb 17, 2003
• Grant date: Nov 15, 2005
• Expiry date: Mar 13, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L37/0842
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A coupling for connecting hydraulic ducts has a first coupling element (1), in the form of a female coupling, with a receptacle (3) and a first locking face (10), and a second coupling element (2), in the form of a male coupling, The second coupling element (2) has an annular groove (9) that forms a second locking face (27) insertable into the receptacle (3). Several locking elements (10) are arranged in the annular groove (9). The locking elements (10) are held in the annular groove (9) and can be pivoted between a locking position and a releasing position. In the coupled condition of the coupling elements (1, 2), the first locking face (24) is axially supported on the second locking face (25). An unlocking sleeve (28) is displaceable between a locking position and a releasing position on the second coupling element (2). By moving the unlocking sleeve (28) from the locking position into the releasing position, the locking elements (10) are displaced from the locking position into the releasing position.