Linear pneumatic window wiper of driller room of petroleum drilling machine

• Main Authors: SUN JIANGFENG, FAN CHUNMING, LI CHANGJIANG, HAN PENG, ZHANG WENYING, JIANG HEYAN
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2012
• Subjects: COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; 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; FURNITURE; HUMAN NECESSITIES; LADDERS; SPICE MILLS; SUCTION CLEANERS IN GENERAL

The utility model relates to a linear pneumatic window wiper of a driller room of a petroleum drilling machine, which comprises a slide track mounted outside a window of a driller control room of the petroleum drilling machine. A slider is sleeved on the slide track and connected with a windshield wiper via a Z-shaped connecting plate, two collision blocks are respectively arranged on two sides of the slider, a hydraulic buffer and an ejector rod valve are respectively disposed on the inner sides of baffle plates at two ends of the slide track of a cylinder, the rodless cylinder is simultaneously communicated with a pneumatic operated reversing valve and a shuttle valve, the pneumatic operated reversing valve and the shuttle valve are simultaneously communicated with a manual reversing valve, the pneumatic operated reversing valve is respectively communicated with two air exhaust throttling valves and is simultaneously communicated with the manual reversing valve, and the manual reversing valve is successivel