1results about How to "Avoid constant" patented technology

A push rod device for opening and closing mechanical doors, relating to the field of mechanical door and window switches, includes a fixed rod, a hinge rod, a push rod assembly, and a foot pedal assembly. The fixed rod is fixed to the upper part of the inner surface of the door panel. The left end of the hinge rod is hinged to the door frame, and the lower right end of the hinge rod is slidably mounted on the fixed rod via a screw. The diameter of the middle part of the hinge rod is larger than the diameters of the upper and lower ends. The push rod assembly includes a push rod and a fixed block. The fixed block is fixed to the door panel, and the push rod is slidably mounted inside the fixed block. The upper end of the push rod has a top block that corresponds vertically to the screw. The plug on the lower end of the push rod is inserted into the foot pedal assembly. This utility model has a simple structure and is easy to use, avoiding the inconvenience and safety hazards of climbing ladders to open and close doors.