Button self-resetting assembly, switching device and assembling pressure head

The utility model relates to the technical field of toggle switches, in particular to a toggle self-resetting assembly, a switch device and an assembly pressure head. The button self-resetting assembly comprises a button body which is provided with a matching groove, the matching groove is internally provided with a limiting piece, and the limiting piece extends in the axial direction of the matching groove; the reset elastic piece is installed in the matching groove, the reset elastic piece and the matching groove are coaxially arranged, and one end of the reset elastic piece is clamped and matched with the limiting piece; the switch ejector rod is installed at the end, away from the limiting piece, of the reset elastic piece in an abutting mode, and the switch ejector rod is in sliding fit with the matching groove. In the process of pushing the switch ejector rod, the limiting piece can limit the movement stroke of the switch ejector rod, the situation that the overall length of the reset elastic piece is r