Door and window locks

Abstract

1. The name of this design product: door and window lock. 2. The purpose of this design product: It is used to lock doors and windows, and can also prevent children from getting their hands pinched when playing with doors and windows. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other situations that require explanation: Description of the changed state: The use state diagram is a three-dimensional diagram of the stopper core in the middle of the lock tongue after rotating 180 degrees (to prevent children from pinching their hands).

Images