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Non-damage drilling head

A non-damage, drill bit technology, applied to drilling equipment, drill bits, drilling tools, etc., can solve the problem of damage to metal pipe networks, achieve high practicability, improve alarm accuracy, and improve detection accuracy

Active Publication Date: 2011-01-19
JIAN YAN FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of non-damage drilling drill bit equipment, to solve the technical problem of avoiding damage to the buried metal pipe network in the drilling process

Method used

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Embodiment Construction

[0025] see figure 1 , figure 2 As shown, the non-damage drilling equipment is divided into two parts: a. the detection coil 1 on the drilling tool, the detection circuit board 2, and the alarm signal transmitting coil 3; b. the alarm signal receiving coil 4 on the ground, the alarm circuit 5, Buzzer 6, warning light 7.

[0026] see figure 1 As shown, the drill bit 8 is connected with the short-circuit 11, and there is an annular detection coil groove 9 on the bottom of the drill bit 8, and the detection coil 1 is placed in the groove; the short-circuit 11 has a detection circuit board groove 12, and the detection circuit board 2. Put it in the groove; the cover plate 15 is fixed on the notch, and the gap is glued to the surface until the surface is flat, and there is a small hole 19 for placing the circuit control switch on the cover plate 15;

[0027] The upper part of the short-circuit 11 is provided with an annular alarm transmitter coil slot 13 for placing the alarm tr...

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Abstract

The invention relates to a damage-free drilling bit. The damage-free drilling bit comprises a drill, a bit and a drill pipe; an annular detecting coil trough is opened along the circumference on the external diameter close to the bottom of the bit; a detecting coil is arranged in the trough; a notch is covered by a bezel ring of the detecting coil and the clearance is adhered by glue until the surface is smooth; the bit is provided with a detecting circuit board trough; a detecting circuit board is sealed in the trough; a covering board is fixed on the notch and the clearance is adhered by glue until the surface is smooth; a small hole for placing a circuit control switch is reserved on the covering board; the upper part of the bit is provided with an annular alarm transmitting coil trough along the circumference; an alarm signal issuing coil is placed in the trough; the notch is covered by a bezel ring of the transmitting coil and the clearance is adhered by glue until the surface issmooth; and the detecting coil and the alarm signal transmitting coil are respectively connected with the detecting circuit. The damage-free drilling bit can avoid damage to underground metal pipe network while improving detection precision.

Description

technical field [0001] The invention belongs to a drilling equipment for underground survey and metal detection, in particular to a drilling equipment capable of surveying underground metal pipelines. Background technique [0002] With the rapid development of the city, there are more and more metal pipelines buried underground, which brings a lot of difficulties to the underground survey. Once the underground pipeline is damaged during the construction process, it will cause serious damage to the pipeline owner and the survey and construction party. cause greater losses. Since the existing drilling equipment does not have the function of underground metal detection, in order to avoid damage to the buried metal pipelines during the survey, the usual practice is to first use the detection equipment to detect the area to determine the approximate size of the buried metal pipeline network. azimuth, avoiding possible locations, and then proceed with drilling work. Ordinary met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B12/00E21B10/00E21B47/00E21B47/013E21B47/12
Inventor 腾延京方雪松李伯伦
Owner JIAN YAN FOUND ENG
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