Hinge for cold rooms, swing gates or the like

A hinge comprising:

• a box-shaped hinge body anchorable to one of a stationary support structure and a door;
• a pin disposed along a first longitudinal axis and anchorable to the other one of the stationary support structure and the door, the pin and the box-shaped hinge body being rotatably coupled such to rotate around the first axis between an open door position and a closed door position, the pin having a cam element defined therein;
• a closing member configured to automatically return the door from the open position to the closed position;
• and
• a working fluid acting on the closing member to hydraulically counteract an action thereof, thus controlling door rotation from the open position to the closed position,
• wherein the closing member comprises a plunger element slidably movable in an operating chamber within the box-shaped hinge body along a second axis substantially perpendicular to the first axis between a compressed end position, corresponding to the open door position and an extended end position, corresponding to the closed door position, the plunger element being coupled to a pushing head interacting with a substantially countershaped seat of the cam element,
• wherein the closing member and the working fluid are both entirely housed in the operating chamber, and
• wherein the box-shaped hinge body has an elongated shape extending along the second axis, the pushing head being substantially plate-shaped to define a plane substantially perpendicular to the first axis.