TDS water well drilling rig is a light, efficient and multi-functional drilling and perforating equipment, which is mainly suitable for drilling water wells, agricultural irrigation wells and other boreholes, especially for water extraction projects in mountainous areas and rocky strata. This series of drilling rigs adopt new hydraulic technology, supporting high torque hydraulic motor rotation and large bore hydraulic cylinder propulsion. Working Principle TDS water well drilling rig is a kind of fully hydraulic open-air drilling equipment, which is powered by diesel engine, forming high pressure oil circuit by driving hydraulic oil pump, and driving hydraulic motor and hydraulic cylinder to complete various predetermined actions by manipulating each relevant hydraulic manipulation valve on the manipulation console. When working, start the power, push the handle of the slewing valve on the console, the pressure oil through the slewing valve to drive the slewing motor on the slewing device rotation. Push the handle on the travel valve to realize the forward, backward, turning and other actions of the machine. Push the handle on the operating table to control the action of each related cylinder and winch motor, to complete the pitch of the guide rail and unload the Xuan cylinder, outrigger cylinder, telescopic cylinder telescopic action and the forward and reverse action of the winch motor. Push the handle on the propulsion valve to realize the telescopic action of the propulsion cylinder, and drive the wire rope feeding and lifting. When the propulsion cylinder is contracted and the rotator is turning, the ball valve on the air inlet pipe is opened at the same time to supply the pressure air from the air compressor to the drill pipe and the impactor to work and blow the broken rock out of the ground, so as to realize the continuous feeding of the impactor to break the rock and form the rock drilling. The handle on the merging manipulator valve is combined with the propulsion and rotary handle respectively, which can realize the rapid action of the rotary and propulsion cylinders.