A drill bit fishing device and fishing method

Abstract

The invention discloses a drill bit fishing device, which comprises a cover body, a gas injection pipe, a camera mechanism and a mechanical arm. The upper end of the cover body is sealed and the lower end is open. The cover body is used to cover an object to be salvaged. A sling is connected, and the sling is used for lowering or lifting the cover, and a connecting rope is connected to the inside of the top of the cover; the gas injection pipe is inserted into the cover from the top of the cover, and the gas injection pipe is used for Gas injection; the camera mechanism is installed in the cover body, and the camera mechanism is used to obtain the video information in the cover body and transmit it to the display device outside the well for display; the mechanical arm is used to fix the connecting rope on the salvaged object. At the same time, the invention also discloses a drill bit fishing method using the above drill bit fishing device. The invention solves the problem that the mud in the well cannot be salvaged directly by means of machinery because the mud in the well is turbid and invisible.

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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