Gas spring opening and closing door of rotary drilling rig cover element

• Main Authors: QIN AIGUO, YANG YANG
• Format: Patent
• Language: Chinese; English
• Published: 09.01.2013
• Subjects: CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; KEYS; LADDERS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

The invention relates to the technical field of a gas spring opening and closing door of a rotary drilling rig cover element, and particularly relates to a gas spring opening and closing door of a rotary drilling rig cover element. The gas spring opening and closing door of the rotary drilling rig cover element comprises a door lock, a handle, a door, a gas spring, a link stopper and a door frame, wherein the top end of the door is hinged with the top end of the door frame; the gas spring is arranged between the middle section of the door and the middle of the door frame for connection; the handle is arranged on the door; a door lock is arranged at the tail end of the door, and the link stopper is arranged at the lower end of the door frame. Opening and shutting of the door of the cover element become quite convenient; the door is fixed at the maximal position by self-lock of the gas spring, and does not fall off, so that a manual limiting rod in the traditional mode is saved.