The invention discloses a stretching clamping type engine oil pan oil drainage blocking
system which comprises an inner fixing seat, an outer blocking component and expansion springs. The inner fixingseat comprises a fixing front column, a fixing
middle column and a fixing rear column, the outer blocking component comprises a front
insertion column, a middle
insertion column and a rear clamp body, the front
insertion column and the middle insertion column are matched with inner cavities of the fixing front column and the fixing
middle column in an insertion manner, the middle insertion columnand the expansion springs which are arranged in the fixing
middle column can be driven by one another via a
piston sleeve, the fixing rear column, an upper arc plate and a lower arc plate are clampedto form an upper clamp groove and a lower clamp groove, the upper arc plate and the lower arc plate are connected onto the fixing rear column, the rear clamp body comprises an upper clamp block and alower clamp block, the upper clamp block and the lower clamp block which are connected with the rear end of the middle insertion column are correspondingly clamped with the upper clamp groove and thelower clamp groove, and a transparent observation block is embedded in a front column cavity and is arranged in a position between the front end of the front insertion column and the outer side surface of the fixing front column. The stretching clamping type engine oil pan oil drainage blocking
system in the design has the advantages that threaded connection, torque control or optional assembling / detaching tools can be omitted, and the stretching clamping type engine oil pan oil drainage blocking
system is easy to operate and high in
controllability.