The invention discloses a heavy six-link 180-degree casement hinge, and relates to hardware of
doors and windows. The casement hinge comprises a groove-shaped bottom plate connected with a window frame, a starting connecting rod connected with a window sash, a long connecting rod, a short connecting rod, a long supporting connecting rod, a middle supporting connecting rod and a short supporting connecting rod, wherein the long connecting rod and the short connecting rod are riveted to the starting connecting rod, the long supporting connecting rod, the middle supporting connecting rod and theshort supporting connecting rod are riveted to the long connecting rod and the groove-shaped bottom plate respectively, and an opening and closing structure composed of nine
rivet shafts is formed. According to the casement hinge, the thickness of the connecting rods is increased, and a riveting connection structure is used, so that the
bearing capacity is improved; all parts are made of
metal materials, and all functions of the hinge do not fail even under the condition of high temperature, so that the
fire safety is guaranteed; and the window sash is driven to rotate through the
rivet shaft,and extra movement space does not need to be increased, so that screws can be screwed at the groove-shaped bottom plate, the groove-shaped bottom plate is fixed to the window frame, and installationand connection are firm, and therefore, the load-bearing, anti-theft, fire-fighting and installation functions are greatly improved, and safety guarantee is provided for installation and use of a user.