1 results about "Frost crack" patented technology

The utility model relates to solar water heater technical field especially relates to a solar water heater pipeline anti -frost crack device, including the water heater main part, the upper end of water heater main part is provided with the water tank, the inboard of water tank is provided with heating assembly, the outside of water tank is provided with the heat preservation storehouse, the upper end of heat preservation storehouse is provided with the heat preservation board, the front and back sides of heat preservation board are provided with the limit slot, the front and back sides of heat preservation storehouse are fixedly installed with the limit seat, the outside of limit seat is provided with locking screw rod, the outside of locking screw rod is provided with the limit block, the left and right sides of limit block are provided with the limit board, the right side of water tank is connected with the water inlet and outlet pipe, the outside of water inlet and outlet pipe is provided with the heat preservation cover, the outside of heat preservation cover is provided with locking assembly, the utility model discloses through the rotation locking screw rod control limit block and limit slot interlock, realizes the quick fixation to heat preservation board, the heat preservation cover is set up in the water inlet and outlet pipe outside, through the locking assembly is connected in the heat preservation cover outside, realizes the fixation to heat preservation cover.