Projection screen pull rod (buffered new voice)

Abstract

1. The name of this design product: projection screen pull-down rod (buffered new voice). 2. Purpose of this design product: used for the buffer pull-down rod of the projection screen. 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: combination status diagram 1. 5. Other situations that need explanation Other explanations: Combined state diagram 1 and combined state diagram 2 are composed of 1 component 1, 1 component 2 and 2 components 3.

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