Guardrail for stretcher, bed or the like for conveying patient in hospital and locking mechanism thereof

The present invention provides a fence of transporting stretcher etc. in the hospital, and a locking mechanism thereof, side edge arrangement of the fence along a stretcher section (11) comprises: a fence body (21) arranged with rotary shafts (22, 23) at both ends; rotary support sections (12, 13) capable of reelingly supporting the fence body. A first chuck section arranged on the body comprises: a base section (41) fixed on the fence body; a control rod (42) arranged for moving to-and-fro respectively to upper and lower directions of the base section; a pin member (43) arranged on the control rod; and a chuck member (44) arranged for moving to-and-fro in transverse direction, stopping the control rod from moving from the rotary shaft at a first position, and allowing the control rod moving from the rotary shaft at a second position. A second chuck section arranged on the rotary support section comprises a hole (52) for inserting the pin member (43).