Stylus type low voltage test pen

Abstract

The present invention relates to the technical field of low-voltage electricity testing, and is a stylus-type low-voltage electricity testing pen, comprising an insulating shell, a metal electricity testing rod is provided at the left end of the insulating shell, an insulating protective outer cover is provided on the outside of the metal electricity testing rod, the right end of the insulating protective outer cover is fixedly installed with the left end of the insulating shell, an electricity testing circuit is provided in the insulating shell, an electricity testing display unit and a direct measurement stylus group are provided on the insulating shell, the lower end of the direct measurement stylus group is located inside the insulating shell, the right end of the metal electricity testing rod is connected to the electricity testing circuit, the electricity testing circuit is connected to the electricity testing display unit, and the electricity testing display unit is connected to the lower end of the direct measurement stylus group. Compared with the traditional electricity testing pen, the present invention enables the staff to perform low-voltage electricity testing operations without taking off the gloves, ensures that the staff can wear wire gloves in strict accordance with the safety requirements of low-voltage operations, reduces the risk of taking off gloves during electricity testing operations, improves the safety of work, and greatly reduces the risk of low-voltage operations.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage electricity testing, in particular to a stylus-type low-voltage electricity testing pen. Background Art

[0002] Low voltage test pen is a common tool for judging the live wire and neutral wire in lighting circuit and checking whether low voltage electrical equipment is energized. Its appearance is divided into pen type, screwdriver type and combination type, etc. It is mainly used as a special tool to check whether low voltage electrical equipment and circuits are energized.

[0003] At present, the metal tip of a typical low-voltage electrician's pen contacts a wire in the circuit, and the hand contacts the metal body of the pen's tail. The display device in the electrician's pen is used to determine whether the part touched by the metal tip is charged. When using the low-voltage electrician's pen, workers cannot wear wire gloves. When repairing low-voltage equipment in outdoor power grids, wire gloves must be worn in accordance with the safety requirements of low-voltage operations. Therefore, wire gloves must be removed before the electrical inspection can be performed, which can easily bring safety hazards to the actual operation safety. Summary of the invention

[0004] The present invention provides a stylus-type low-voltage electrician test pen, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the problems that the existing electrician test pen cannot be used with wire gloves, does not meet the safety requirements of low-voltage operations, and has potential safety hazards.

[0005] The technical solution of the present invention is achieved through the following measures: a stylus-type low-voltage electrician test pen, comprising an insulating shell, a metal electrician test rod is provided at the left end of the insulating shell, an insulating protective outer cover is provided on the outside of the metal electrician test rod, the right end of the insulating protective outer cover is fixedly installed with the left end of the insulating shell, an electrician test circuit is provided inside the insulating shell, an electrician test display unit and a direct measurement stylus group are provided on the insulating shell, the upper end of the direct measurement stylus group is located outside the insulating shell, the lower end of the direct measurement stylus group is located inside the insulating shell, the right end of the metal electrician test rod is connected to the electrician test circuit, the electrician test circuit is connected to the electrician test display unit, and the electrician test display unit is connected to the lower end of the direct measurement stylus group.

[0006] The following are further optimizations and / or improvements to the above technical solutions:

[0007] The above-mentioned electrical test display unit may include a digital voltage display module and a neon tube. The digital voltage display is respectively connected to the electrical test circuit and the lower end of the direct measurement contact pin group, and the neon tube is respectively connected to the electrical test circuit and the lower end of the direct measurement contact pin group.

[0008] The above may also include a direct measurement stylus group protective cover and anti-skid rubber. The direct measurement stylus group protective cover is arranged on the outside of the insulating shell corresponding to the position of the direct measurement stylus group, and the anti-skid rubber is arranged on the outside of the insulating shell.

[0009] The direct measurement stylus set may include at least one stylus.

[0010] The above-mentioned insulating protection outer cover can be a telescopic insulating protection outer cover.

[0011] The present invention has the advantages of simple structure, low cost and convenience in use. By directly measuring the use of the contact pin group, workers can perform low-voltage electrical testing without taking off gloves, compared with traditional electrical test pens. While meeting the accuracy and reliability of low-voltage electrical testing for outdoor power grid maintenance, it ensures that workers can wear wire gloves in strict accordance with the safety requirements of low-voltage operations, reduces the risk of taking off gloves during electrical testing operations, improves work safety, and greatly reduces low-voltage operation risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the main structure of the best embodiment of the present invention.

[0013] Attached Figure 2 Schematic diagram of the circuit structure of the best embodiment of the present invention.

[0014] The codes in the attached drawings are: 1 is an insulating shell, 2 is a metal test rod, 3 is an insulating protective outer cover, 4 is a test display unit, 5 is a direct measurement contact pin group, and 6 is a protective cover for the direct measurement contact pin group. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0016] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0017] The present invention will be further described below in conjunction with embodiments and drawings:

[0018] As attached Figure 1 , 2 As shown, the stylus-type low-voltage electrician test pen comprises an insulating shell 1, a metal electrician test rod 2 is provided at the left end of the insulating shell 1, an insulating protective outer cover 3 is provided on the outer side of the metal electrician test rod 2, the right end of the insulating protective outer cover 3 is fixedly installed with the left end of the insulating shell 1, an electrician test circuit is provided in the insulating shell 1, an electrician test display unit 4 and a direct measurement stylus group 5 are provided on the insulating shell 1, the upper end of the direct measurement stylus group 5 is located outside the insulating shell 1, and the lower end of the direct measurement stylus group 5 is located inside the insulating shell 1, the right end of the metal electrician test rod 2 is connected to the electrician test circuit, the electrician test circuit is connected to the electrician test display unit 4, and the electrician test display unit 4 is connected to the lower end of the direct measurement stylus group 5.

[0019] The above-mentioned power test circuit is a known technology in the prior art and can be a voltage-dropping resistor; the above-mentioned power test display unit 4 is a known technology in the prior art and can be a light-emitting diode, etc., which is used to display whether the low-voltage electrical equipment or circuit is energized.

[0020] When the present invention is in use, first, the worker, in accordance with the safety requirements of low-voltage operations, holds the insulating housing 1 while wearing wire gloves, so that the direct measurement contact pin group 5 passes through the wire gloves and contacts the worker's hands; then, the end of the metal test rod 2 located outside the insulating protection cover 3 is contacted with the low-voltage electrical equipment or line under test; finally, the test display unit 4 is observed to determine whether the low-voltage electrical equipment or line under test is energized.

[0021] The present invention has the advantages of simple structure, low cost and convenience in use. By directly measuring the use of the contact pin group 5, compared with the traditional electrician test pen, the staff can perform low-voltage electrician test operations without taking off gloves. While meeting the accuracy and reliability of low-voltage electrician test for outdoor power grid maintenance, it ensures that the staff can wear wire gloves in strict accordance with the safety requirements of low-voltage operations, reduces the risk of taking off gloves during electrician test operations, improves work safety, and greatly reduces low-voltage operation risks.

[0022] According to actual needs, the above-mentioned stylus-type low-voltage electrician test pen can be further optimized and / or improved:

[0023] As attached Figure 1 , 2 As shown, the electrical test display unit 4 includes a digital voltage display module and a neon tube. The digital voltage display is connected to the electrical test circuit and the lower end of the direct measurement contact pin group 5 respectively. The neon tube is connected to the electrical test circuit and the lower end of the direct measurement contact pin group 5 respectively.

[0024] When in use, the staff can judge whether the low-voltage electrical equipment or line under test is energized by whether the neon tube is luminous and the specific display content of the digital voltage display module. The above-mentioned digital voltage display module may include an AD conversion module, a voltage stabilizing module, and a digital display screen, and the voltage stabilizing module, the AD conversion module, and the digital display screen are connected in sequence.

[0025] As attached Figure 1 As shown, it also includes a direct measurement stylus group protective cover 6 and anti-skid rubber. The direct measurement stylus group protective cover 6 is arranged on the outer side of the insulating shell 1 corresponding to the position of the direct measurement stylus group 5, and the anti-skid rubber is arranged on the outer side of the insulating shell 1.

[0026] The above-mentioned anti-skid rubber is arranged on the outer side of the insulating shell 1 to prevent slipping and ensure that the staff can hold the present invention firmly. The above-mentioned direct measurement stylus group protective cover 6 is arranged on the outer side of the direct measurement stylus group 5 to ensure that the direct measurement stylus group 5 of the present invention will not be damaged during use, storage, carrying, etc., thereby increasing the service life of the present invention.

[0027] As attached Figure 1 As shown, the direct measurement stylus set 5 includes at least one stylus.

[0028] The direct measurement stylus set 5 comprises one stylus, which can ensure the stability of contact.

[0029] As attached Figure 1 As shown, the insulating protection outer cover 3 is a telescopic insulating protection outer cover 3.

[0030] The telescopic insulating protective cover 3 can protect the metal electric test pole 2 from being worn when the present invention is not in use, thereby increasing the service life of the present invention.

[0031] The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A stylus-type low-voltage electric test pen, characterized in that It includes an insulating shell, a metal test pole is provided at the left end of the insulating shell, an insulating protective cover is provided on the outside of the metal test pole, the right end of the insulating protective cover is fixedly installed with the left end of the insulating shell, an test circuit is provided inside the insulating shell, a test display unit and a direct measuring pin group are provided on the insulating shell, the upper end of the direct measuring pin group is located outside the insulating shell, and the lower end of the direct measuring pin group is located inside the insulating shell, the right end of the metal test pole is connected to the test circuit, the test circuit is connected to the test display unit, the test display unit is connected to the lower end of the direct measuring pin group, the test circuit is a step-down resistor, and when in use, the direct measuring pin group passes through the wire gloves and contacts the hands of the staff.

2. The stylus-type low-voltage electric test pen according to claim 1, characterized in that The electric test display unit comprises a digital voltage display module and a neon tube. The digital voltage display is respectively connected to the electric test circuit and the lower end of the direct measurement contact pin group. The neon tube is respectively connected to the electric test circuit and the lower end of the direct measurement contact pin group.

3. The stylus-type low-voltage electric test pen according to claim 1 or 2, characterized in that It also includes a direct measurement stylus group protective cover and anti-skid rubber. The direct measurement stylus group protective cover is arranged on the outside of the insulating shell corresponding to the position of the direct measurement stylus group, and the anti-skid rubber is arranged on the outside of the insulating shell.

4. The stylus-type low-voltage electric test pen according to claim 1 or 2, characterized in that The direct measurement stylus set includes at least one stylus.

5. The stylus-type low-voltage electric test pen according to claim 3, characterized in that The direct measurement stylus set includes at least one stylus.

6. The stylus-type low-voltage electric test pen according to claim 1, 2 or 5, characterized in that The insulating protection outer cover is a telescopic insulating protection outer cover.

7. The stylus-type low-voltage electric test pen according to claim 3, characterized in that The insulating protection outer cover is a telescopic insulating protection outer cover.

8. The stylus-type low-voltage electric test pen according to claim 4, characterized in that The insulating protection outer cover is a telescopic insulating protection outer cover.

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