Pumping unit wellhead safety protection device

Pumping unit wellhead safety protection device, the retractable door comprises a retractable door body, a first protective fence, a second protective fence, a third protective fence, a first connecting sleeve, a second connecting sleeve, a first fixing sleeve and a second fixing sleeve. The upper po...

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Bibliographische Detailangaben
Hauptverfasser:	WANG JUNFENG, ZANG JIANCHAO, TAO TIANYU, LI XUE, LIU YANG, WU LINPING, WANG HUAN, ZHAO RUOLAN, GENG JIANGLING, WANG XIYUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FENCING FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS MASTS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL
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Beschreibung
Zusammenfassung:	Pumping unit wellhead safety protection device, the retractable door comprises a retractable door body, a first protective fence, a second protective fence, a third protective fence, a first connecting sleeve, a second connecting sleeve, a first fixing sleeve and a second fixing sleeve. The upper portion of the first fixing sleeve is connected with the left side of the retractable door. The No.1 fixed sleeve rotates on the retractable door; rollers are connected to the lower parts of the fixing sleeves I through rotating shafts; the second fixing sleeve is connected with the right side of theretractable door; the second fixed sleeve rotates on the retractable door; rollers are connected to the lower parts of the fixing sleeves II through rotating shafts; the roller rotates on the rotatingshaft; the left side of the fastening connecting plate is connected with the first fixing sleeve, the right side of the fastening connecting plate is connected with the second fixing sleeve, the leftside of the telescopic doo