The utility model discloses a kind of capillary
chromatographic column synchronous filling instruments, it is related to
chromatography technical field, capillary
chromatographic column synchronous filling instrument includes: filling module and
chromatographic column connector
assembly, filling module is equipped with filler mouth, pressure supply interface and chromatographic column interface;Wherein, chromatographic column interface includes connecting mouth section and sealing mouth section, the inner
diameter of connecting mouth section is greater than the inner
diameter of sealing mouth section to form step surface at the connecting place of connecting mouth section and sealing mouth section,
fixed joint includes threaded connection part and conical sealing part, threaded connection part is connected with connecting mouth section by
screw thread, at least part of conical sealing part extends into sealing mouth section and conical sealing part is pressed on the inner
peripheral edge of step surface.According to the capillary chromatographic column synchronous filling instrument of the utility model, long-term stable dynamic sealing can be realized under
high pressure, the risk of liquid leakage is eliminated, the structure is simple and durable, the use of parts is reduced,
assembly is simple, cost is reduced, and the use range is wider.