Water leakage prevention device for solar vacuum concentric-square-shaped heat collecting tube

The utility model discloses a water leakage prevention device for a solar vacuum concentric-square-shaped heat collecting tube, which comprises a water storage tank, and one side of the lower end of the water storage tank is connected with a support component. According to the water leakage prevention device for the solar vacuum concentric-square-shaped heat collecting pipe, through mutual cooperation of the fixed pipe, the fixed ring, the groove, the shell, a motor, a threaded rod, a threaded cylinder, a fixed plate and a blocking block, the fixed plate and the blocking block can be conveniently driven to move downwards through the threaded rod and the threaded cylinder, and a damaged heat collecting pipe body is blocked; water in the water storage tank is prevented from flowing into the damaged heat collecting pipe, loss of water resources can be reduced to a certain extent, and the practicability of the heat collecting pipe body is improved; and through mutual cooperation of the arranged through hole, the