SIGHT DEVICE INTENDED FOR INSPECTION OF BOREHOLE CHAMBER OF SHIELD BORING MACHINE, AND MACHINE FOR SHIELD BORING, CONTAINING SUCH DEVICE Russian patent published in 2020 - IPC E21D1/06 

FIELD: drilling of wells; machine building.

SUBSTANCE: invention discloses a sight device for inspecting a borehole chamber of a shield boring machine and a panel boring machine comprising such a device. Sighting device comprises a video filming device, wherein said video filming device comprises a video filming device housing, as well as a video camera and a searchlight installed in said housing of video filming device. First rotary device, wherein said first rotating device is connected to said video filming device and said first rotary device is intended to bring said video filming device into rotation relative to first rotation axis passing through center of said video filming device and second rotating device. At that, said second rotating device is connected to said video filming device and said second rotating device is intended to bring said video filming device into rotation relative to second rotation axis passing perpendicular to said first axis of rotation. Said housing of video filming device comprises rotary gear wheel coaxially installed relative to said second axis of rotation; and said second rotary device comprises a rotatable coupled member configured to move, note here that said rotary conjugated element comprises toothed rack coupled with said rotated gear wheel.

EFFECT: technical result is the creation of a sight device, through which the borehole zone can be more closely examined.

11 cl, 11 dwg