Upright lockrand clamp for solar support

The invention discloses an upright lockrand clamp for a solar support, and relates to the technical field of photovoltaic supports. The device comprises a main clamping plate, an auxiliary clamping plate is rotationally clamped to the left side of the main clamping plate, clamping mechanisms are movably connected to the opposite sides of the main clamping plate and the auxiliary clamping plate, and a fastening mechanism is movably connected to the top of the main clamping plate. When the main clamping plate and the auxiliary clamping plate are used for clamping connection, the arc plate with the surface grinding block deflects and engages in a self-adaptive mode under the fastening force according to the actual situation of the two sides of the lockrand, elastic rods on the front side and the rear side are pressed at the same time, elastic pin blocks are shrunk, elastic clamping blocks are subjected to soft limiting through groove strips, and then the positions of all clamping frames can be conveniently adjus