The sliding windows, casement windows, sliding doors, and casement doors we use in our daily life will all use door and window transmission rods, which are also one of our door and window hardware accessories.
The drive rod of the door and window is used for fixing between the fan surface of the door and window and the lock block on the frame surface of the door and window when the handle lock is used for the casement door or the sliding door and window bar lock hook is locked on the switch. Some people may wonder what the two small bumps on the transmission rod are, but they are actually nails. When the handle is pressed down, the nail will be stuck on the lock block on the door and window frame. In this case, the door or window will be locked, which can play a role of security and anti-theft; the reverse operation can open the window.
Under normal circumstances, if the top-hung window uses a seven-shaped handle, there is no need to install a transmission rod. Because the casement door and window are used when the handle lock is used, or the sliding door and window bar lock hook is locked on the switch, the drive rod of the door and window is used.