A oil cylinder component for rock true triaxial test

The utility model discloses an oil cylinder component for rock true triaxial test, oil cylinder component include one end open -ended hydro -cylinder body and install at this internal piston of hydro -cylinder that include the piston rod, and the end cover is installed to the open end of hydro -cylinder body, is equipped with the through -hole that holds the piston rod and pass through on the end cover, piston rod outer ends connects the one end of sensor, is equipped with the sensor connecting plate between sensor and the piston rod outer ends, is equipped with the locating pin between sensor connecting plate and the piston rod outer ends, ball pressure pad subassembly is connected to the other end of sensor, is equipped with the direct selling between ball pressure pad subassembly and the sensor, the utility model discloses add between load cylinder and sample and establish ball pressure pad subassembly, can be used to prevent that the sample is uneven, perhaps the installation have the error, the bulb can