Induction digital display test pencil provided with illuminating device

Abstract

The invention relates to an induction digital display test pencil provided with an illuminating device.The induction digital display test pencil comprises a plastic shell,a slot type screwdriver type pencil tip, a rectangular liquid crystal display, an induction breakpoint testing button and a direct measurement button, wherein the voltage-withstanding value of the plastic shell is 500V, the slot type screwdriver type pencil tip is fixedly connected with one end of the shell, the rectangular liquid crystal display is arranged in the middle of the shell, the induction breakpoint testing button and the direct measurement button are arranged at the positions, located at one side of the liquid crystal display, on the shell, a cell bin is arranged at the position, located at the other side of the liquid crystal display, on the shell, two 1.5V button cells in series connection are mounted in the cell bin, a high-luminance light emitting diode arranged in a lampshade is mounted at the position, close to the slot type screwdriver type pencil tip, on the shell, the high-luminance light emitting diode is connected with the button cells through wires and a switch, one ends of eight light-guide fibers are arranged on the inner wall of the lampshade, and the other ends of the eight light-guide fibers are uniformly arranged at the upper edge and the lower edge of glass on the outer layer of the liquid crystal display through the shell.The induction digital display test pencil is simple in structure and low in manufacturing price, particularly, part of luminous energy is guided to the liquid crystal display through the optical fibers, the night vision function is achieved, and meanwhile more energy is saved.

Description

technical field [0001] The invention relates to an electrical tool, in particular to an induction digital display measuring electric pen with a self-contained lighting device. Background technique [0002] The electric test pencil is a very commonly used electrician tool. At present, the electric measuring pen does not have a lighting device. When operating at night or in a dark environment, it is easy to cause inaccurate positioning. It is necessary to use lighting tools such as a flashlight, which not only brings some troubles to the electrician's operation, but also has certain potential safety hazards. . [0003] The utility model patent with the publication number CN202275107U discloses a lighting electric measuring pen, which includes a pen head and a pen holder. The pen holder includes a casing, a pen core, and a tail cap. A lighting switch is set, the tail of the pen head is set in the hole, LED lights are set around the bump, the pen core is set in the casing, the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the existing induction digital display test pen cannot be operated at night or in a dark environment, and to provide a kind of induction digital display test pen with a self-contained lighting device. In order to achieve this purpose, The technical scheme adopted in the present invention is:

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