Cylinder manipulator is a pneumatic actuator, and its working principle is to convert the pressure energy of compressed air into mechanical energy. Cylinder manipulator is usually composed of cylinders and related mechanical structures, which are used to perform specific action tasks. The cylinder is the core component, which generates thrust or tension by controlling the entry and exit of gas, so as to realize grasping, moving or other operations on objects. Functions related to liquid or gas absorption are usually not the main design goal of the cylinder manipulator. On the contrary, the operation of pumping liquid or gaseous substances requires the use of straws or other specially designed devices. Suction pipe is a kind of slender pipe, which is used to suck liquid or gas materials and realize the absorption and transportation of materials through negative pressure or other principles.