Hand auto tightener (unlocked tow chain and self-locking walk chain switch)

Abstract

1. The name of the appearance design product: line tightener (hand automatic, unlock chain and self-locking chain switching). 2. The use of the appearance design product: used for tightening and adjusting lines in overhead transmission line construction, and also used for lifting heavy objects. 3. The design points of the appearance design product: the shape of the product. 4. The picture or photo that best indicates the design points of the appearance: perspective view. 5. The appearance design does not protect the color (the color depth of each part of the product is different and does not affect the expression of the shape).

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