Abstract: A quick coupler assembly includes inlet and outer valve parts axially spaced inside a housing unit. The inlet valve part has an inlet chamber. A quick release locking sleeve is sleeved on the housing unit to control locking elements for engaging/disengaging a pipe connector inserted into the outlet valve part. An inner slide sleeve sleeves around the inlet valve part in the housing unit and has a control chamber around the inlet valve part to communicate the inlet chamber through radial passage holes. An outer operating sleeve extends around the housing unit to move the inner slide sleeve relative to the inlet valve part, and is able to abut and immobilize the quick release locking sleeve during passage of fluid.

Abstract: A quick coupler assembly includes inlet and outer valve parts axially spaced inside a housing unit. The inlet valve part has an inlet chamber. A quick release locking sleeve is sleeved on the housing unit to control locking elements for engaging/disengaging a pipe connector inserted into the outlet valve part. An inner slide sleeve sleeves around the inlet valve part in the housing unit and has a control chamber around the inlet valve part to communicate the inlet chamber through radial passage holes. An outer operating sleeve extends around the housing unit to move the inner slide sleeve relative to the inlet valve part, and is able to abut and immobilize the quick release locking sleeve during passage of fluid.

Abstract: A cassette tray is provided, which includes a bottom plate and two holding members. The bottom plate includes a plurality of positioning holes, wherein the positioning holes are arranged in rows along a first direction, and the rows are spaced apart from each other in a second direction perpendicular to the first direction. Each of the holding members is selectively connected to the positioning holes in one of the rows and mounted on the bottom plate in a detachable manner, and a circuit board is received between the two holding members.

Abstract: A cassette tray is provided, which includes a bottom plate and two holding members. The bottom plate includes a plurality of positioning holes, wherein the positioning holes are arranged in rows along a first direction, and the rows are spaced apart from each other in a second direction perpendicular to the first direction. Each of the holding members is selectively connected to the positioning holes in one of the rows and mounted on the bottom plate in a detachable manner, and a circuit board is received between the two holding members.