A spring hinge is a simple device that keeps a door in place. It is a two leaf mechanism with a leaf at each end that is secured to the door frame. It requires only a brief contact between the two leaves to keep the door closed. This type of hinge is generally used on doors that are relatively light.

A door, referring to a building entrance or exit, or an apparatus that can be opened and shut at the entrance and exit. It is a device that divides a limited space and connects or blocks the entrance and exit of two or more spaces. Doors can be classified into interior doors and exterior doors. Func

A rising hinge is an awkward type of hinge that enables the door to rise up slightly from the ground when the door is first opened. This has the advantage of helping the door to seal against unwanted noise or movement once the door has been opened.