Ejecting and pressing device convenient for replacing chip test seat Hifix

The utility model discloses a jacking and pressing device convenient for replacing a chip test seat Hifix, which aims at solving the problems that hardware is seriously damaged and the human body is seriously harmed due to the fact that the Hifix is manually pried to replace a plate in the prior art, and structurally comprises a chip test seat, an upper jacking plate, an upper pressing plate, an upper needle plate, a limiting rod and a base clasp, a base clasp at the bottom of the device can be positioned and fixed at the lower end of a chip test seat, so that when the upper part of the device is operated, the whole mechanism does not shift transversely or longitudinally, and when a rotating handle is manually shaken clockwise, a bevel gear placed in the vertical direction in an upper top plate drives a bevel gear placed in the horizontal direction. According to the utility model, the operation of hand-cranking plate replacement is relatively simple, the positioning design of the elliptical limiting rod provi