Water tank welding installation support tool

The utility model discloses a water tank welding installation support tool which comprises a base, a through groove, universal brake trundles, a first fixing plate, a second fixing plate, a sliding plate, an adjusting bolt, a clamping block, a cushion block, a stand column, a supporting piece, a first telescopic rod, an installation base, an adjusting knob, a second telescopic rod, a rotating threaded rod, a pressing block and a fixing frame. The cushion block is installed on the clamping block, the supporting pieces are arranged on the two sides of the stand column, and the pressing block is installed at the end, away from the installation base, of the rotary threaded rod. The clamping blocks can effectively fix the box body, and it is guaranteed that the box body cannot deviate in the welding process, and the welding quality is not affected; the pressing block can be stably pressed on the water tank mounting support, so that the welding position is prevented from deviating; and the cushion blocks are arrang