Test pencil capable of manually generating power for illumination

Abstract

The invention is to provide a test pencil capable of manually generating power for illumination. The test pencil comprises an insulated outer shell, wherein a test contact, a current-limiting resistor, a light-emitting tube and a hand-contact electrode are serially connected in sequence inside the insulated outer shell, and the outer end part of the insulated outer shell is fixedly connected with an illuminating lamp. The test pencil further comprises a pressure plate, a pressure rod, a rotating device, a transmission shaft and a miniature generator, wherein the tail end of the pressure plate is hinged and connected to one side of the insulated outer shell, the pressure rod, the rotating device, the transmission shaft and the miniature generator are arranged inside the insulated outer shell, the head end of the pressure plate is connected to the rotating device through the pressure rod, the rotating device is connected with the miniature generator through the transmission shaft, and the miniature generator is electrically connected with the illuminating lamp through a lead wire. The test pencil has the beneficial effects that the test pencil provided with the illuminating lamp does not need to use battery for illumination power supply, avoids the problems that a test pencil adopting a battery runs out of battery, needs to be checked timely before use and runs out of battery in the use process, can provide power for illumination by pressing the pressure plate with a hand when in need of illumination, converts manual energy into electric energy for illumination by adopting the simple structure, and is convenient to use.

Description

technical field [0001] The invention relates to a tool used by an electrician, in particular to a test pencil with an illuminating lamp. Background technique [0002] The electric test pen is also called the electric test pen. It is a commonly used electrical tool for detecting whether the circuit is charged. At present, there are electric test pens with lighting devices on the market. The electric test pen is used in places with dark light or when the circuit is powered off at night and needs emergency repairs. In some cases, the operator does not need to carry another flashlight for lighting, but now the test pen with lighting device uses the battery to connect the light to achieve the purpose of lighting. When the test pen is not used, the battery will fail to pollute the test. The electric pen is wasteful. Before use, it is necessary to check whether the battery is charged. When using it, it is necessary to prevent the battery from running out of power, which will affect...

AI Technical Summary

Problems solved by technology

[0002] The electric test pen is also called the electric test pen. It is a commonly used electrical tool for detecting whether the circuit is charged. At present, there are electric test pens with lighting devices on the market. The electric test pen is used in places with dark light or when the circuit is powered off at night and needs emergency repairs. In some cases, the operator does not need to carry another flashlight for lighting, but now the test pen with lighting device uses the battery to connect the light to achieve the purpose of lighting. When the test pen is not used, the battery will fail to pollute the test. The electric pen is wasteful. Before use, it is necessary to check whether the battery is charged. When using it, it is necessary to prevent the battery from running out of power, which will affect the work of circuit maintenance and bring inconvenience to the work. Therefore, the electric test pens with lighting devices sold on the market are often will make it difficult to detect

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