Non-contact embrace type drill pipe count and advance-retract foot position detector

Abstract

1. The name of the design product: contactless embrace type drill pipe count and in-out foot displacement detector. 2. The use of the design product: for detecting the drill pipe count and in-out foot displacement of the drill pipe through the way of embracing the middle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

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