Underground metal detector with high detection precision

Abstract

The invention relates to an underground metal detector with high detection precision. The underground metal detector comprises a shell, a detection probe, a ball and four centralized mechanisms; fourrotating mechanisms are arranged in the shell; a dust removing mechanism is arranged at the bottom in the detection probe. Each centralized mechanism comprises a storage box, an interception plate anda telescopic assembly. Each telescopic assembly comprises a transverse rod, a separation unit, a connecting plate, two sliding blocks and two connecting rods. The dust removing mechanism comprises amoving assembly, a swinging assembly and a suction nozzle, and the moving assembly comprises a first motor, a lead screw, a moving block, a fixed plate and a guide unit. According to the underground metal detector with high detection precision, local detection can be carried out through the centralized mechanisms, and the position of metal is found conveniently so that the detection precision of the underground metal detector can be improved; dust in the detection probe is removed through the dust removing mechanism, so that influences of dust on the detection probe are reduced, and the practicality of the underground metal detector can be improved.

Description

technical field [0001] The invention relates to the field of detection instruments, in particular to an underground metal detector with high detection accuracy. Background technique [0002] Underground metal detectors are made with advanced technology and have the characteristics of wide detection, accurate positioning, strong resolution, and easy operation. Metal detectors are mainly used to detect and identify metal objects buried underground. [0003] Existing metal detectors use a coil with an alternating current passed through it, creating a rapidly changing magnetic field. This magnetic field can induce eddy currents inside metal objects. The eddy current will generate a magnetic field, which in turn affects the original magnetic field, causing the detector to beep. The existing metal detector can only sense whether there is metal nearby, but cannot accurately locate the metal, which leads to the existing metal detector The detection accuracy is greatly reduced, no...

AI Technical Summary

Problems solved by technology

The eddy current will generate a magnetic field, which in turn affects the original magnetic field, causing the detector to beep. The existing metal detector can only sense whether there is metal nearby, but cannot accurately locate the metal, which leads to the existing metal detector The detection accuracy is greatly reduced, not only that, but the existing metal detectors are mostly used for underground detection, and there is a large amount of dust in the underground mines, which makes the dust accumulation in the detection head of the existing metal detectors, which affects the detection accuracy. Reduced the market competitiveness of existing metal detectors

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