Quick coupling

Abstract

A quick coupling, for example of a female type, to be connected with a counterpart, of a male type, comprises, inside a valve body, downstream of an inlet fitting for receiving a pressurized fluid flow (F), a guide and conveying body (7) having a parabolic cross section, and a plurality of radially outwardly extending ribs, delimiting, circumferentially of the guide and conveying body, a plurality of flow channels communicating with an annular chamber (6) closed by a valve body (3).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The subject matter according to the present invention will be disclosed and illustrated in a more detailed manner hereinafter with reference to an exemplary embodiment thereof, as shown in the accompanying drawings, where:

FIG. 1 is a cross-sectional view showing a half of a female type of quick coupling according to the invention;

FIG. 2 is a cross-sectional view showing a detail indicated by X in FIG. 1; and

FIG. 3 is a perspective view showing the end conveying body arranged inside the quick coupling.

Claims

1. A quick coupling (1), for example of a female type, to be coupled to a male counterpart, characterized in that it comprises a guide and conveying body (7) arranged in a valve body (3), arranged downstream of a pressurized fluid flow (F) inlet fitting (4), said guide and conveying body (7) having a parabolic cross section, and that a plurality of ribs (8) outward radially project from said guide and conveying body, said ribs delimiting, in a circumferential direction of said guide and conveying body (7), a plurality of fluid flow (F) channels (9) communicating (5) with an annular chamber (6) closed by said valve body (3).

2. A quick coupling, according to claim 1, characterized in that said quick coupling (1) comprises an inner channel (5) extending from said fitting (4) along an arched path to said annular chamber (6) closed by said valve body (3).

3. A quick coupling, according to claim 1, characterized in that said channels (9) of said guide and conveying body (7) end at an inclined annular surface (10) and communicate with an end portion (11) of said guide and conveying body (7).

4. A quick coupling, according to claim 1, characterized in that, in said valve body (1), at least one of said ribs (8) comprises a hole (12) in which a locking pin (13) is engaged for fixing said guide and conveying body (7).

5. A quick coupling, according to claim 1, characterized in that said at least a rib (8) comprises a throughgoing hole (14) communicating with an outlet fitting (16).

6. A quick coupling, according to claim 5, characterized in that said outlet fitting (16) is coupled to a resilient tube communicating with an outlet fluid collecting tank.