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Multifunctional test pencil

A technology for measuring electricity and electricity, which is applied in the direction of measuring electricity, measuring electricity variables, measuring current/voltage, etc., and can solve the problems of inability to judge the zero line fault and lack of writing function.

Inactive Publication Date: 2012-06-20
常熟市董浜镇华进电器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the electric test pens used by people use a screwdriver head as the test contact, and do not have the writing function. very inconvenient
In addition, most of the current electric test pens judge the live wire according to the glow of the neon tube, and judge the neutral wire according to the extinguishing of the neon tube, which can judge the fault of the live wire, but cannot judge the fault of the neutral wire.

Method used

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] figure 1 It is a structural schematic diagram of a multi-function electric measuring pen according to an embodiment of the present invention; the electric measuring pen includes a screwdriver contact, an insulating pen body, and a refill 10, and the screwdriver contact has a flat screwdriver contact 1 and a Phillips screwdriver contact 2 , the insulating pen body is composed of a pen holder 6, a pen core sleeve 11, and a pen cap 12, and the described pen holder 6 is equipped with an electronic electricity measuring indicating device 5 and an electroluminescent device 7, and the screwdriver type contact, the electronic The electric measurin...

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PUM

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Abstract

The invention discloses a multifunctional test pencil. The multifunctional test pencil comprises screwdriver type contact terminals, an insulating test pencil body and a test pencil core, wherein the screwdriver type contact terminals are provided with a straight screwdriver type contact terminal and a cross screwdriver type contact terminal; the insulating test pencil body is formed by a test pencil rod, a test pencil core sleeve and a test pencil cap, and the inner part of the test pencil rod is provided with an electronic electricity test indicating device and an electricity test luminous device; and the screwdriver type contact terminals, the electronic electricity test indicating device, the electricity test luminous device and a metal test pencil clip are sequentially connected to form a test loop. According to the multifunctional test pencil disclosed by the invention, not only can the positions of a zero line and a firing line be quickly and accurately distinguished, but also whether the zero line is in fault or not can be judged; through the test contact terminals adopted by the invention, not only can the using requirement of a straight screw be met, but also the using requirement of a cross screw can be met; and the multifunctional test pencil not only has the function of testing the electricity, but also is additionally provided with a writing device at the test pencil body, and thus the multifunctional test pencil can be used as a pencil for writing by taking down the test pencil cap.

Description

technical field [0001] The invention relates to an electric measuring pen, in particular to a multifunctional electric measuring pen, which belongs to the field of household appliances. Background technique [0002] The electric test pen is a common electrical tool used to judge whether an object is charged or to distinguish live and neutral wires. Its interior is usually a neon bulb with two electrodes. One pole of the neon bulb is connected to the tip of the pen, and the other pole is connected to the other end of the pen after a high resistance is connected in series. When the voltage between the two poles of the neon bulb reaches a certain value, a glow will be generated between the two poles, and the intensity of the glow is proportional to the voltage between the two poles. When the voltage of the charged body to the ground is greater than the initial glow voltage of the neon bulb, and the tip of the test pen touches it, the other end is grounded through the human bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/155G01R31/02
Inventor 马进
Owner 常熟市董浜镇华进电器厂
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