Auxiliary equipment for installation and construction of heating and ventilation pipeline

The utility model discloses auxiliary equipment for heating and ventilation pipeline installation construction, which comprises a support, the bottom end of the inner side of the support is rotatably connected with a fixing shaft, the left end and the right end of the outer side of the fixing shaft are both fixedly connected with rolling wheels, the outer sides of the rolling wheels are fixedly connected with fixing belts, the fixing belts penetrate through the support, and the fixing belts are slidably connected with the support. By means of the clamping rod, the worm, the rolling wheel and the support, when the air pipes of the heating ventilation air conditioner are constructed, the ends of the two air pipes needing to be connected together are clamped between the clamping rod and the support, then the worm is rotated to be meshed with the worm wheel, the rolling wheel is made to roll the fixing belt, and the fixing belt is fixed to the support. At the moment, a fixing belt can pull a sliding plate to comp