Liquid sampler for experiment

The utility model relates to the technical field of experimental equipment, and discloses an experimental liquid sampler which comprises a liquid sampling pipe, a rubber head is arranged on the liquid sampling pipe in a conducting mode, a flow blocking sleeve is arranged between the rubber head and the liquid sampling pipe in a conducting mode, one end, communicated with the liquid sampling pipe, of the flow blocking sleeve protrudes inwards to form a flow guide pipe, and the flow guide pipe is communicated with the rubber head. A flow guide hole is formed in the position, connected with the flow blocking sleeve, of the bottom of the flow guide pipe, a spherical flow blocking part is arranged at the top end of the flow guide pipe, a guide pipe is connected to the top of the flow blocking part in a communicating mode, and an air guide hole is formed in the position, close to the guide pipe, of the flow blocking part. According to the utility model, the probability that liquid enters the rubber head during liqu