Multifunctional meter reading concentrator based on HPLC (High Performance Liquid Chromatography) module

The invention discloses a multifunctional meter reading concentrator based on an HPLC (High Performance Liquid Chromatography) module, and particularly relates to the technical field of meter reading concentrators, the multifunctional meter reading concentrator comprises a concentrator body, the HPLC module and a box body, the concentrator body is connected with the output end of the HPLC module, a mounting plate is fixedly arranged in the box body, and the concentrator body and the HPLC module are fixedly arranged on the mounting plate. A first semicircular groove and a second semicircular groove are formed in the inner wall of the door plate and the inner wall of the box body correspondingly, a rotatable limiting rod is arranged in the first semicircular groove, a worker holds a connecting column with a hand and extrudes an arc-shaped plate with fingers, the arc-shaped plate drives a special-shaped insertion plate to be inserted into an insertion hole of a sleeve, and then a connecting column is rotated to