Abstract: The connection device (101, 201) according to the invention has a locking head (109, 209) that can be locked to an opening (8) of a container wall (3). A clamping device (123, 223) is also provided on the corresponding coupling piece (5), which serves to tighten the head (109, 209) locked to the container wall (3) without a rotational movement against the container wall (3). The clamping device (123, 223) can be designed as a wedge-clamping device (142, 242). The latter permits generation of large clamping forces with small operating forces. The clamping device (142, 242) is preferably secured by a locking device (253), so that vibration-proof connection resistant to temperature changes is achieved during simple assembly.

Abstract: A flexible corrugated hose fitting, which is particularly provided for high-pressure installations, such as air conditioning installations using CO2 as the refrigerant, has a connecting element, which can be snapped together with the interior corrugated pipe of the flexible corrugated hose. In addition, the connecting element has sealing elements, which come into sealing contact with the corrugated pipe. Following the area receiving the sealing elements, the connecting element has a cone, which is used as a clamping section. An exterior squeeze ring, or other squeeze element, is used for pressing the exposed end of the corrugated pipe against the clamping section. A pressing sleeve is used for pressing, which drives the squeeze ring by a wedge effect inward. It has an appropriate conical interior surface. The squeeze ring moreover extends over the sheathing. For further securing of the connection, the pressing sleeve can be pressed together here with the sheathing by an appropriate deformation.

Abstract: The connection device (101, 201) according to the invention has a locking head (109, 209) that can be locked to an opening (8) of a container wall (3). A clamping device (123, 223) is also provided on the corresponding coupling piece (5), which serves to tighten the head (109, 209) locked to the container wall (3) without a rotational movement against the container wall (3). The clamping device (123, 223) can be designed as a wedge-clamping device (142, 242). The latter permits generation of large clamping forces with small operating forces. The clamping device (142, 242) is preferably secured by a locking device (253), so that vibration-proof connection resistant to temperature changes is achieved during simple assembly.

Abstract: A flexible corrugated hose fitting 1, which is particularly provided for high-pressure installations, such as airconditioning installations using CO2 as the refrigerant, has a connecting element 11, which can be snapped together with the interior corrugated pipe 5 of the flexible corrugated hose 3. In addition, the connecting element 11 has sealing elements 23, 24, which come into sealing contact with the corrugated pipe 5. Following the area receiving the sealing elements 23, 24, the connecting element 11 has a cone 26, which is used as a clamping section. An exterior squeeze ring 34, or other squeeze element, is used for pressing the exposed end of the corrugated pipe against the clamping section 26. A pressing sleeve 38 is used for pressing, which drives the squeeze ring 36 by a wedge effect inward. It has an appropriate conical interior surface 42. The squeeze ring 34 moreover extends over the sheathing 8.

Abstract: A plug-in line connector (1) for especially simple and secure assembly has a fluid-tight plug-in connection and a locking device (25), which is very easy to access when its retaining parts are assembled in the axial direction and which is locked so that it cannot be released by passing a locking point. A tension spring, which is formed as a ring and acts as a block, is used for the locking element. This guarantees particularly low activation forces and minimizes axial play.

Abstract: A connecting device is provided particularly as a quick-connect device for connecting fluid channels on motor vehicles. The connecting device features two axial connecting elements that are to be clamped and that are sealed by a sealing element to be deformed in the axial direction. The deformation of the sealing element is limited by mechanical stop means (support surfaces). A wedge-clamping device is used for clamping the connecting elements against each other.