Safety guardrail for maintenance of tail bearing of beam-pumping unit

• Main Authors: LIU LIFENG, XIAO SHUN, HU YEXI, LV QUN, KONG WENLIANG, LI BENJUN
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2014
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model provides a safety guardrail for maintenance of a tail bearing of a beam-pumping unit. The safety guardrail for maintenance of the tail bearing of the beam-pumping unit comprises a guardrail frame main body and a guardrail door, wherein the guardrail frame main body is formed by welding stand columns connected at four corners of a rectangular base plate and steel plates of a front side guardrail, a rear side guardrail and a right side guardrail, the stand column at one end of a right side opening is provided with a door pivot, the stand column at the other end of the right side opening is provided with a door bolt, the door pivot and the door bolt are connected with the guardrail door respectively, the rear side guardrail surface of the guardrail frame main body and one end of each n-shaped hook are integrally welded, the other end of each n-shaped hook is hung at a position of a transverse beam, which is closes to the tail bearing, and the position of the tail end of each n-shaped hook, whic