Fishing and releasing device for underground inclinometer

• Main Authors: GUO LIGONG, WANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a fishing and releasing device for an underground inclinometer, which comprises a fishing head, a fishing spear and a releasing sleeve, the fishing spear comprises a spear body and a clamp, a plug-in connector is formed in the bottom end of the spear body, and the clamp composed of two oppositely-arranged hooks is rotationally arranged in the plug-in connector; one end of the hook is provided with a hook head, the other end of the hook is connected with the spear body through an arch-shaped elastic piece, and the hook head and the arch-shaped elastic piece are arranged inside and outside the hook respectively; the hook between the hook head and the arch-shaped elastic sheet is also rotationally connected with the interior of the spear body through a rotating pin; the side, away from the hook, of the arch-shaped elastic piece is arched to form an arch-shaped section which extends out of the spear body. And the release sleeve is sleeved outside the spear body and presses the bow-shap