Auxiliary device for improving observing effect of drilling television imaging instrument in muddy water hole

Abstract

The invention relates to an auxiliary device for improving the observing effect of a drilling television imaging instrument in a muddy water hole, which belongs to the field of manufacture of engineering non-destructive detecting equipment. The auxiliary device comprises a precipitating pipe, an upper connecting seat, a transmitting shield, a lower connecting seat and a seal bottom cover, wherein the upper part of the upper connecting seat is in screwed connection with the precipitating pipe; the lower part of the upper connecting seat is in movably inserted connection with the transmitting shield; the lower part of the lower connecting seat is in screwed connection with the bottom cover; an air bag is arranged between the lower connecting seat and the bottom cover; a shaft center of the bottom cover is provided with a water pressure adjusting hole; and the lower connecting seat is provided with upper symmetrical water holes. The auxiliary device can reduce the distance between a device and the hole walls, strengthen the transmittance and solve the problem that the observing requirement can not be met by an insufficient light source due to muddy water. The invention can ensure the stability of shooting equipment in a drilling hole when in use, is convenient to move up and down, leads a light source of the original shooting equipment to meet clear shooting in the drilling hole, has reasonable structure, simple and convenient assembly and rapid use, is convenient for carrying and can meet the test requirements of drilling holes with different hole diameters.

Description

technical field [0001] The invention relates to an auxiliary device for improving the observation effect of a drilling TV imager (optical imaging) in a muddy water hole, and belongs to the field of engineering non-destructive testing equipment manufacturing. Background technique [0002] In engineering geology, hydrogeology, geological prospecting, geotechnical engineering, mining, etc., most of them need to obtain more accurate geological data by taking cores. If the geological conditions are complicated, it will be difficult to obtain complete cores. To solve this problem For such problems, a smart borehole TV imager has been developed. However, due to the lack of camera light sources, this kind of intelligent drilling TV imager can only obtain clear and intuitive data when it is used in clear water drilling. It has high requirements for the quality of the water in the hole. In the turbid state, the water source for washing the hole is not clear, and the light energy of t...

AI Technical Summary

Problems solved by technology

However, due to the lack of camera light sources, this kind of intelligent drilling TV imager can only obtain clear and intuitive data when it is used in clear water drilling. It has high requirements for the quality of the water in the hole. In the turbid state, the water source for washing the hole is not clear, and the light energy of the camera light source is strongly absorbed in the thicker muddy water layer, which cannot meet the observation conditions of the borehole TV imager. To meet this condition, it is usually in the hole Adding alum or natural clarification to the internal water is time-consuming and wasteful, and the effect is not necessarily good, which brings great limitations to the field data acquisition.

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