Extension interface of a pencil with extension interface

Abstract

1. The name of the design product: the extension interface of the pencil with extension interface. 2. The use of the design product: the overall product of the claimed partial design is a pencil with extension interface, which is used for writing and pencil extension; the claimed partial design is the extension interface, which is used for connecting the pencil. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1A-A cross-sectional view. 5. Design 1 right view is symmetrical with design 1 left view, omit design 1 right view; design 1 rear view is symmetrical with design 1 front view, omit design 1 rear view; design 2 right view is symmetrical with design 2 left view, omit design 2 right view; design 2 rear view is symmetrical with design 2 front view, omit design 2 rear view. 6. Design 1 is designated as the basic design. 7. Other circumstances that need to be explained: the design is a partial design, the claimed partial design includes the appearance shown in the solid line part of the view, and the appearance expressed in the dotted line part of the view is not claimed; the center dot of design 2 top view and design 2 perspective view 2 represents the apex of the conical extension interface. The A-A cross-sectional view of design 1 is the cross-sectional view from the cutting line A-A in the design 1 front view; the B-B cross-sectional view of design 2 is the cross-sectional view from the cutting line B-B in the design 2 front view.

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