Hydraulic oil pipe joint anti-loosening connection fixing piece

The utility model provides an anti-loosening connection fixing piece for a hydraulic oil pipe joint. The anti-loosening connection fixing piece comprises an oil pipe joint, an oil pipe locking nut arranged on the upper side of the oil pipe joint and connected with an oil pipe, and a U-shaped locking cushion arranged between the oil pipe joint and the oil pipe locking nut. According to the utility model, the oil pipe locking nut and the oil pipe joint are connected into a whole through the locking cushion, so that the oil pipe locking nut and the oil pipe joint cannot rotate to achieve the anti-loosening purpose, and the oil leakage phenomenon is avoided. 本实用新型提供一种液压油管接头防松动联接固定件，包括油管接头、设置在所述油管接头上侧的与油管连接的油管锁紧螺母、设置在所述油管接头与所述油管锁紧螺母之间的U型止动垫子。本实用新型利用止动垫子将油管锁紧螺母与油管接头连接成一体，使得它们无法转动，以达到防松动的目的，从而避免发生漏油现象。