Obstacle avoidance rack of hedge shears

The invention discloses an obstacle avoidance rack of a pair of hedge shears. The obstacle avoidance rack comprises a tool holder, a measuring arm, a measuring rod, an angle detection device, a swing arm, a rack, a second rotating shaft and a driving mechanism, wherein the tool holder is used for mounting the shears; a measuring seat is arranged on the front side of the left end of the tool holder; the left end of the measuring arm is fixedly connected with a first rotating shaft; the first rotating shaft is arranged on the measuring seat in a rotating manner; the right end of the measuring arm is connected with the tool holder through an elastic mechanism; the measuring rod is transversely arranged in front of the tool holder; the left end of the measuring rod is fixedly connected with the right end of the measuring arm; the angle detection device is connected with the first rotating shaft; the right end of the swing arm is fixedly connected with the top of the tool holder; the rack is positioned on the upper side of the swing arm; the lower end of the second rotating shaft is fixedly connected with the left end of the swing arm; the second rotating shaft can sleeve the left end of the rack in the rotating manner; the driving mechanism is used for driving the second rotating shaft to rotate. According to the obstacle avoidance rack, automatic obstacle avoidance can be flexibly realized; the obstacle avoidance rack has a simple structure and is convenient to use.