Quick coupler for removably joining two pipes

摘要

The quick coupler according to the invention comprises a male element adapted to be fitted in a female element and maintained in this position by a latch forming stop and opposing a movement of withdrawal thereof. A safety member maintains the latch in blocked position, under the action of the pressure of the fluid, by the cooperation of two surfaces respectively provided on the latch and on the safety member. This safety member releases the latch when the residual pressure is low. Such a device is particularly intended for the connection of pipes conveying gas under pressure and avoids a premature uncoupling when the device is pressurized.