Handheld metal detector

Abstract

The invention relates to the technical field of metal detection, and discloses a handheld metal detector. The handheld metal detector comprises a detection disk, an intermediate plate is fixedly mounted in the detection disk, four rollers are fixedly mounted on the lower surface of the intermediate plate through connecting sleeves, a person does not need to always lift the detector during detection, a certain distance can be kept between the lower surface of the detection disk and the ground all the time through the rollers, so that the use safety of the detector can be well ensured, the movement is labor-saving, the effect is particularly obvious when the device is arranged underground to detect mineral products in the wall, a person can directly press the detection disk with force, however, due to the existence of the rollers, the detection disk cannot make contact with protrusions on the wall, the safety of the detector is better guaranteed, protruding sharp grabbing teeth are arranged on the surfaces of the hubs of the rollers, and therefore, good grabbing force can be guaranteed no matter on the ground or on the wall, and the use convenience of the detector is improved.

Description

technical field [0001] The invention relates to the technical field of metal detection, in particular to a hand-held metal detector. Background technique [0002] Mineral exploration is to use various advanced technical means to find and identify underground geological minerals, so that the accumulation and accumulation of ore deposits can be recognized. Among its exploration equipment, hand-held metal detectors are used to detect underground minerals. One of the mining equipment, its principle is based on the principle of electromagnetic induction, using a coil with alternating current to generate an alternating magnetic field, the alternating magnetic field will generate an induced eddy current inside the detected metal, and the eddy current will be A magnetic field is generated, which in turn affects the original magnetic field, which triggers the detector to sound, thereby searching for minerals, but there are always some problems in the existing hand-held metal detector...

AI Technical Summary

Problems solved by technology

[0003] Existing hand-held metal detectors need to keep a certain distance from the ground during use, which requires people to hold the detector all the time, but it is still possible to scratch the detector and the ground due to the negligence of the operator. , thus damaging the detector, and having to hold it all the time will seriously affect the continuous working time of the person, the arm is easily tired, which is not conducive to improving efficiency, especially under the conditions of underground mineral exploration, not only the underground mineral exploration must be carried out, It is also necessary to detect the surrounding walls, so if traditional handheld metal detectors are used, it is more difficult to control the distance between the detector and the wall, and people are more likely to get tired, and whether it is exploring underground minerals Or to explore the minerals on the wall, the existing detectors do not have the function of marking the position of the detected metal, and the detection position must be marked manually with white lime, so that not only the position of the mark is inaccurate, but also in the Ground markings can easily become blurred, reducing survey productivity

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