The invention discloses a high-speed rotary type automatic
injection device for a liquid sample. The high-speed rotary type automatic
injection device comprises a base plate, a rack, a two-dimensional mobile platform arranged on the rack, a sample injection
assembly, a sample injection table, a sample
bottle and a waste liquid
bottle, wherein the two-dimensional mobile platform comprises a horizontal sliding rail
assembly driven by a motor and a vertical sliding rail
assembly driven by the motor; the sample injection assembly comprises a sample injection needle and a sample injection needle fixing seat; the sample injection needle fixing seat is arranged on the two-dimensional mobile platform; a
piston rod of the sample injection needle is connected with a power source; the sample injection table comprises a rotary sample table driven by the motor and a sample filling tube. The device can be used for uniformly adding the liquid sample into a
soft matter; in addition, when a sample solution is injected into the sample filling tube by using the sample injection needle, the problems of unsteady motion,
jitter, injection failure and the like are solved by rotating the sample injection table at high speed. Meanwhile, a circuit
control system is added on the device, so that
automation of injection is realized, and the problems of lower accuracy, stability and working efficiency of manual injection and the like are solved.