Detachable rapid-action coupling device
First Claim
1. Detachable rapid-action coupling device for receiving a tubular plug-in element (3) with a circumferential retaining rib (4), consisting of a receptacle housing (1) with a tubular connecting piece (7) that is connected to a fluid line and a cylindrical receptacle space (6) for inserting the plug-in element (3), and of a separate retaining element (2) of a hard-elastic plastic material with inwardly directed elastic retaining edges (17) that have the form of an arc of a circle and engage behind the retaining rib (4) after insertion of the plug-in element (3), with the retaining element (2) being inserted into the receptacle space (6) through an opening (11) in the cylindrical housing wall (5) of the receptacle housing (1) and fixed axially to the housing wall (5) by means of the retaining edges (17), with the retaining element being able to be pressed inwardly from the outside within the opening region (11) of the housing wall (5) in order to disengage the plug-in element (3), and with the receptacle space (6) consisting of three stepped sections, the first, inner section (6′
- ) of which has an inside diameter (d1) that corresponds to the outside diameter (D1) of the plug-in element (3), the second, central section (6″
) of which is arranged outwardly adjacent to the first, inner section and serves for accommodating at least one annular seal (9) for the plug-in element (3), and the third, front section (6′
″
) of which has an inside diameter (d3) within the inlet region which corresponds to the outside diameter (D3) of the retaining rib (4), characterized by the fact that the housing (1) is realized in the form of a two-part component, with a head part (8, 30) that contains the front section (6′
″
) being able to be axially plugged together with a base body (16, 31) and thereby connected thereto, with the head part containing a centering ring (19) on the plug-in side, the end surface (20) of which simultaneously serves as an end part for the central section (6″
), and with the connection being produced by means of locking elements (23/24) and (27/28), respectively, such that the head part (8, 30) is rotatably held on the outer wall (22) of the base body (16, 31).
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a detachable rapid-action coupling device designed to receive a tubular plug-in element (3) having a circular retaining rib (4). Said device comprises a receiving housing (1) having a cylindrical receiving space (6) for introducing the plug-in element (3) and a separate retaining element (2) made of hard-elastic plastic material and having elastically expandable retaining edges (17) facing inwards in the shape of an arc of a circle, which edges serve to engage the retaining rib (4) from behind after the plug-in element (3) has been introduced. The retaining element (2) can be pushed in from the outside in an opening (11) of the housing wall (5) to release the plug-in element (3). The receiving space (6) consists of three stepped sections. The housing (1) is embodied as a two-part structure. In order to move the opening (11) for pushing in and releasing the retaining element (2) into a better position, if necessary, when only limited space is available. The head part (8) can be connected to the base body (16) in an axial direction and has a centering bush (19) at the plug-in side.
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Citations
5 Claims
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1. Detachable rapid-action coupling device for receiving a tubular plug-in element (3) with a circumferential retaining rib (4), consisting of a receptacle housing (1) with a tubular connecting piece (7) that is connected to a fluid line and a cylindrical receptacle space (6) for inserting the plug-in element (3), and of a separate retaining element (2) of a hard-elastic plastic material with inwardly directed elastic retaining edges (17) that have the form of an arc of a circle and engage behind the retaining rib (4) after insertion of the plug-in element (3), with the retaining element (2) being inserted into the receptacle space (6) through an opening (11) in the cylindrical housing wall (5) of the receptacle housing (1) and fixed axially to the housing wall (5) by means of the retaining edges (17), with the retaining element being able to be pressed inwardly from the outside within the opening region (11) of the housing wall (5) in order to disengage the plug-in element (3), and with the receptacle space (6) consisting of three stepped sections, the first, inner section (6′
- ) of which has an inside diameter (d1) that corresponds to the outside diameter (D1) of the plug-in element (3), the second, central section (6″
) of which is arranged outwardly adjacent to the first, inner section and serves for accommodating at least one annular seal (9) for the plug-in element (3), and the third, front section (6′
″
) of which has an inside diameter (d3) within the inlet region which corresponds to the outside diameter (D3) of the retaining rib (4), characterized by the fact that the housing (1) is realized in the form of a two-part component, with a head part (8, 30) that contains the front section (6′
″
) being able to be axially plugged together with a base body (16, 31) and thereby connected thereto, with the head part containing a centering ring (19) on the plug-in side, the end surface (20) of which simultaneously serves as an end part for the central section (6″
), and with the connection being produced by means of locking elements (23/24) and (27/28), respectively, such that the head part (8, 30) is rotatably held on the outer wall (22) of the base body (16, 31). - View Dependent Claims (2, 3, 4, 5)
- ) of which has an inside diameter (d1) that corresponds to the outside diameter (D1) of the plug-in element (3), the second, central section (6″
Specification