A complete safety system and brake system are installed in the roof rail window cleaner to ensure that the roof rail window cleaner is safer and more reliable during use. This includes the upper and lower limit limit maintenance: one upper limit switch is set, the restraint channel does not exceed the upper position, and the limit switch can be operated when the channel can reach the upper limit position. At this moment, the channel can go down, but cannot go up; because the upper limit switch Damage or channel through the upper limit switch, the limit limit switch works, blocking the entire vehicle power supply.
At the same time, the roof rail type window cleaning machine also has the left and right reverse limit position maintenance of the arm head and the left and right reverse limit limit maintenance of the arm head; and the left and right reverse limit position maintenance of the boom and the left arm of the boom The right reverse limit limit maintenance makes the arm head and the boom of the right reverse limit maintenance safely in place during operation.
The safety system of the roof rail type window cleaning machine also includes the lower limit position maintenance, the lower limit position maintenance, the left limit of the trolley operation, and the right limit of the trolley operation; in addition, the cable maintenance is performed when the cable is extended to the vehicle. At the limit, or when the cable is hung on the obstacle, the cable cut limit switch operates, blocking the power supply of the whole vehicle, the trolley stops running, and the operator removes the fault and resumes operation.