Dual-axis rotating arm concealed hinge (two-dimensional door leaf base)

Abstract

1. Name of the product in this design: Double-axis rotating arm concealed hinge (two-dimensional door leaf base). 2. Purpose of this design: For use in security door products. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: Each view is a view of the hinge opening at 115~120 degrees.

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