Drill bit fishing device and method

Abstract

The invention discloses a drill bit fishing device. The drill bit fishing device comprises a cover body, an air injection pipe, a camera shooting mechanism and a mechanical arm, the upper end of the cover body is sealed, the lower end of the cover body is open, the cover body is used for covering a fished object, a lifting rope is connected to the outer side of the top of the cover body, the lifting rope is used for lowering or lifting the cover body, and a connecting rope is connected to the inner side of the top of the cover body; the air injection pipe is connected into the cover body fromthe top end of the cover body and is used for injecting air into the cover body; the camera shooting mechanism is mounted in the cover body and is used for obtaining video information in the cover body and transmitting the video information to a display device outside a well for display; and the mechanical arm is used for fixing the connecting rope to the fished object. Meanwhile, the invention further discloses a drill bit fishing method adopting the drill bit fishing device. The problem that fishing cannot be carried out directly by adopting a mechanical mode due to muddy and unviewable mudin the well is solved.

Description

technical field [0001] The invention relates to the field of drill bit fishing technology, in particular to a drill bit fishing device and a fishing method. Background technique [0002] Occasionally there will be an accident that the drill bit falls during pile foundation drilling or drilling. If there is an accident that the drill bit falls, the drill bit must be salvaged in time and quickly. [0003] At present, the depth of salvage is basically more than 20 to 100 meters. The well cannot be pumped. It is necessary to have a mud wall, otherwise it will collapse. However, the retaining wall of the pile driver well is very unstable and easily collapses, which sometimes causes divers to bury safety accidents. Moreover, ordinary heavy diving divers at a depth of more than 80 meters cannot go into the water to salvage. In this case, the design is generally changed. Drawings, this will cause a lot of waste. Contents of the invention [0004] Aiming at the defects in the pri...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects in the prior art, the present invention provides a drill bit fishing device and fishing method to solve the problem that the mud in the well cannot be directly fished by mechanical means because the mud in the well is turbid and invisible.

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