Full-automatic burette

The utility model relates to the field of experimental equipment, and particularly provides a full-automatic burette which comprises a liquid storage bottle, a burette body and a pressurizing and inflating unit, the burette body is communicated into the liquid storage bottle, the burette body is provided with a graduated tube, a liquid injection tube and a titration nozzle, a titration nozzle piston switch is arranged at the titration nozzle, and two-channel piston switches are arranged on the liquid injection tube and the graduated tube. The full-automatic burette provided by the utility model is reasonable in structure, the pressure required by liquid injection is reduced, automatic zero setting can be realized, and the operation error of personnel is reduced. 本实用新型涉及了实验器材领域，具体提供了一种全自动滴定管，包括储液瓶，滴定管本体和加压充气单元。所述滴定管本体通入所述储液瓶内，所述滴定管本体设有刻度管、注液管和滴定嘴，所述滴定嘴处设有滴定嘴活塞开关，所述注液管和刻度管上设有双通道活塞开关。本实用新型提供的一种全自动滴定管，结构合理，降低了注液所需压力，且可以自动调零，减少了人员操作误差。