Reversible radar mast

The invention discloses a collapsible radar mast, which comprises a radar lower bracket, a radar upper bracket and a radar lower bracket, a signal lamp is installed at one end of the radar upper support, a balancing weight is installed at the other end of the radar upper support, a rotating shaft matched with the rotating support is arranged in the middle of the radar upper support, and the rotating shaft is rotationally connected with the rotating support; the hand-cranking rotator is connected with the rotating shaft and is used for driving the radar upper bracket to rotate; the locking mechanism is used for locking the radar upper support so that the radar upper support can be kept vertical, and the radar is located at the top end of the radar upper support. When the navigation of the ship is blocked by the height limit of the bridge, the radar upper bracket can be rotated and put down to reduce the net height of the whole radar mast, so that the ship can smoothly pass through the bridge. 本发明公开一种可倒式雷达桅杆，包括