Airtight lever oil cylinder

The utility model discloses an airtight lever oil cylinder, which belongs to the technical field of oil cylinders and comprises a cylinder body, a cylinder cover, a piston and a piston rod. A connecting base is fixedly connected to the cylinder body and hinged to the pressing plate through a hinge piece. A first channel and a second channel are formed in the cylinder body; the upper end of the cylinder body is provided with a pressing air detection assembly used for detecting an air pressure increasing signal when the piston moves to the highest position. The lower end of the cylinder body is provided with a loosening air detection assembly used for detecting an air pressure increasing signal when the piston moves to the lowest position. By means of the mode, the piston detection device can detect that the piston moves to the highest state and the lowest state in the mode of compressing air detection and loosening air detection, and therefore control over the oil cylinder is achieved. 本实用新型公开了一种气密杠杆油缸，属于油缸技术领