A portable electric equipment failure diagnosis device

By incorporating a bendable fixed tube and an insulating protective sleeve into the test pen, the problem of traditional test pens being unable to detect faults in complex environments is solved, enabling efficient fault point detection in complex environments.

CN224317691UActive Publication Date: 2026-06-02HUIYOU (CHENGDU) TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIYOU (CHENGDU) TECH DEV CO LTD
Filing Date
2025-03-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional test pens are difficult to use in confined spaces and complex electrical equipment, leading to inaccurate fault location.

Method used

A portable electrical equipment fault diagnosis device was designed. It uses a bendable fixed tube to connect the test pen body and the pen tip. The shape can be adjusted to adapt to different work spaces as needed. It is also equipped with an insulating protective sleeve and a magnetic positioning structure.

Benefits of technology

It achieves both portability and adaptability to fault point detection in complex environments, improving the accuracy and convenience of detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224317691U_ABST
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Abstract

The utility model belongs to electrical equipment diagnosis technical field, concretely relates to a portable electrical equipment fault diagnosis device, including the test pen main part, the test pen main part is installed with the bendable solid elbow pipe spare that can be stressed and can be shaped after bending, one end of bendable solid elbow pipe spare is fixedly connected with the pen point, the pen point and test pen main part electric connection, the test pen main part includes the pen body, the bendable solid elbow pipe spare is installed in the outside of pen body, the lower end fixedly connected with the conducting block in the pen body interior, the pen point is electrically connected with conducting block, the upper end electric connection of conducting block has the resistance block, the upper end electric connection of resistance block has the neon tube, the upper end electric connection of neon tube has the spring, the upper end electric connection of spring has the pen tail metal body. The utility model can adjust the shape of test pen and adapt to different shape work space, can adapt to more complex working environment while portable, and relatively convenient to detect the fault point under complex working environment.
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Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment diagnostic technology, and specifically relates to a portable electrical equipment fault diagnosis device. Background Technology

[0002] Moreover, with the widespread application of electrical equipment, its distribution scenarios are becoming increasingly diverse, ranging from factory workshops to residential buildings, from outdoor substations to indoor machine rooms. Maintenance personnel need to carry tools to move between different locations. This requires fault diagnosis devices to have good portability; among them, the test pen, due to its small size and easy portability, is a widely used electrical equipment fault diagnosis device.

[0003] In the routine maintenance and fault diagnosis of electrical equipment, repair personnel often need to work in various complex environments. Traditional test pens have a fixed structure, with the tip and body often in a straight line, which has significant limitations when dealing with electrical equipment in confined spaces and with complex structures. For example, inside some distribution boxes, the wiring and components are tightly arranged, making it difficult for traditional test pens to reach specific locations for testing, resulting in an inability to accurately determine the fault location.

[0004] To address the aforementioned issues, it is imperative to develop a portable electrical equipment fault diagnosis device that can adjust its shape to adapt to different workspaces and is also portable. This is of great significance for improving the accuracy and efficiency of electrical equipment fault diagnosis. Utility Model Content

[0005] The purpose of this invention is to provide a portable electrical equipment fault diagnosis device that can adjust the shape of the test pen to adapt to different work spaces. While being portable, it can also adapt to more complex working environments, making it more convenient to detect fault points located in complex working environments.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A portable electrical equipment fault diagnosis device includes a test pen body, on which a bendable fixed tube is installed that can be bent under force and can be shaped after bending. One end of the bendable fixed tube is fixedly connected to a pen tip, and the pen tip is electrically connected to the test pen body.

[0008] Furthermore, the body and tip of the test pen are electrically connected via a first conductive line.

[0009] Furthermore, an insulating protective sleeve is fixedly connected to the outer side of the bendable fixed tube fitting.

[0010] Furthermore, the main body of the test pen includes a pen body, the bendable fixed tube is installed on the outside of the pen body, a conductive block is fixedly connected to the lower end inside the pen body, the pen tip is electrically connected to the conductive block, a resistor is electrically connected to the upper end of the conductive block, a neon tube is electrically connected to the upper end of the resistor, a spring is electrically connected to the upper end of the neon tube, and a metal pen tail extending to the upper side of the pen body is electrically connected to the upper end of the spring.

[0011] Furthermore, the pen tail metal body is electrically connected to a movable metal body via a second conductive line.

[0012] Furthermore, a magnetic metal sleeve is fixedly connected to the outer side of the pen body, and a magnet is fixedly connected to the movable metal body.

[0013] Furthermore, a guide block is fixedly connected to the outer side of the test pen body, and the bendable fixed tube is slidably connected inside the guide block. A locking screw is threaded onto the guide block.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model discloses a portable electrical equipment fault diagnosis device. By setting a bendable fixed tube to connect the main body and tip of the test pen, the bendable fixed tube can be bent into different shapes according to its own needs, thereby adjusting the shape of the test pen to adapt to different working spaces. While being portable, it can also adapt to more complex working environments, and can conveniently detect fault points in complex working environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main body of the test pen of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the main body of the test pen of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Test pen body; 2. Bendable fixed tube; 3. Insulating protective sleeve; 4. Pen tip; 5. First conductive wire; 6. Pen body; 7. Guide block; 8. Locking screw; 9. Conductive block; 10. Resistor block; 11. Neon tube; 12. Spring; 13. Pen tail metal body; 14. Second conductive wire; 15. Magnet; 16. Movable metal body; 17. Magnetic metal sleeve. Detailed Implementation

[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figures 1-3 As shown, a portable electrical equipment fault diagnosis device is a test pen, which is small in size and easy to carry.

[0023] The core of this technical solution lies in the improvement of the test pen structure, specifically as follows: Figure 1 As shown, the portable electrical equipment fault diagnosis device includes a test pen body 1, on which a bendable fixed tube 2 that can be bent under force and can be shaped after bending is installed. One end of the bendable fixed tube 2 is fixedly connected to a pen tip 4. The pen tip 4 and the test pen body 1 are electrically connected. The electrical connection can be that the test pen body 1 is electrically connected to the pen tip 4 through the bendable fixed tube 2, or the test pen body 1 and the pen tip 4 are electrically connected through a first conductive wire 5.

[0024] The bendable fixed pipe fitting 2 in this technical solution needs to have good flexibility, shapeability and certain strength. It can be a metal hose made of stainless steel, copper and other metal materials. It has been widely used in the bending structure of lazy brackets. This technical solution will not elaborate on it in detail.

[0025] Here, the bendable fixed pipe fitting 2 can also be a multi-degree-of-freedom adjustable support.

[0026] The tip 4 is generally made of metal, such as copper or iron, and is the part of the test pen that directly contacts the object being tested. Its shape is usually a sharp cone or flat so that it can easily contact charged bodies of different shapes and positions.

[0027] When in use, users can bend the flexible fixed bend pipe 2 according to their own needs, so that the flexible fixed bend pipe 2 can be bent into different shapes, thereby adjusting the shape of the test pen to adapt to different working spaces. While being portable, it can also adapt to more complex working environments, making it easier to detect fault points in complex working environments. When storing, the flexible fixed bend pipe 2 can be bent to reduce the length of the test pen for easy carrying.

[0028] And such as Figure 1 As shown, an insulating protective sleeve 3 is fixedly connected to the outside of the bendable fixed pipe fitting 2. At this time, the insulating protective sleeve 3 can serve as a protective layer for the bendable fixed pipe fitting 2 to protect and isolate it.

[0029] like Figures 1-3 As shown, the main body 1 of the test pen includes a pen body 6, which mainly serves the functions of insulation and gripping. It is usually made of insulating materials such as plastic or rubber. Its shape and size are designed to conform to ergonomics, making it convenient for users to hold and operate. A bendable fixed tube 2 is installed on the outside of the pen body 6.

[0030] The lower end of the pen body 6 is fixedly connected to a conductive block 9. The pen tip 4 is electrically connected to the conductive block 9 through a bendable fixed tube 2 or a first conductive wire 5. The upper end of the conductive block 9 is electrically connected to a resistor block 10. The resistor block 10 is usually a high-resistance resistor, generally with a resistance of several megohms or more. Its main function is to limit the current passing through the human body and ensure the safety of the human body when using the test pen.

[0031] The upper end of the resistor block 10 is electrically connected to a neon tube 11. The neon tube 11 is the core component of the test pen. It is made of glass tube and filled with inert gas such as neon. When current passes through it, the neon gas is ionized and excited, emitting a bright orange-red light to indicate whether the object being tested is charged. The neon tube 11 has two electrodes, one of which is connected to the pen tip 4 through the conductive block 9, and the other is connected to the electrical components at its upper end.

[0032] A spring 12 is electrically connected to the upper end of the neon tube 11. The spring 12 is connected to the electrode of the neon tube 11. The upper end of the spring 12 is electrically connected to a pen tail metal body 13 extending to the upper side of the pen body 6. The spring 12 is used to connect the neon tube 11 and the pen tail metal body 13. Its function is to ensure good contact between the neon tube 11, the resistor block 10 and other components. At the same time, it can provide a certain elasticity during use, so that the pen tail metal body 13 can maintain stable contact with the finger. The pen tail metal body 13 is made of metal and is the part of the human body that comes into contact with the test pen. When using it, the finger needs to touch the pen tail metal body 13 so that the human body, the test pen and the tested live body form a circuit, so that the test pen can work normally.

[0033] like Figures 1-3 As shown, when the bendable fixed tube 2 is bent into different shapes, the user's posture of holding the test pen body 1 also needs to be changed accordingly to facilitate operation. The pen tail metal body 13 of this technical solution is electrically connected to the movable metal body 16 through the second conductive line 14. At this time, the movable metal body 16 can be placed in a position that matches the user's thumb according to the user's holding posture.

[0034] Meanwhile, a magnetic metal sleeve 17 is fixedly connected to the outside of the pen body 6, and a magnet 15 is fixedly connected to the movable metal body 16. At this time, after the position of the movable metal body 16 is adjusted, the movable metal body 16 can be magnetically attracted to the corresponding position on the outside of the magnetic metal sleeve 17 by the magnet 15, thus completing the positioning of the movable metal body 16.

[0035] like Figures 1-3 As shown, the bendable fixed tube 2 can be directly fixedly connected to the pen body 6 and the conductive block 9, or it can be... Figures 1-3 As shown, a guide block 7 is fixedly connected to the outside of the test pen body 1. The bendable fixed tube 2 is slidably connected inside the guide block 7, so that the length of the rod of the bendable fixed tube 2 between the test pen body 1 and the pen tip 4 can be adjusted to adapt to different working environments. A locking screw 8 is threaded on the guide block 7 to position the bendable fixed tube 2 after it has been moved.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A portable electrical equipment fault diagnosis device, characterized in that: The test pen includes a main body (1), on which a bendable fixed tube (2) is installed that can be bent under force and can be shaped after bending. One end of the bendable fixed tube (2) is fixedly connected to a pen tip (4), and the pen tip (4) is electrically connected to the main body (1). The test pen body (1) and the pen tip (4) are electrically connected by a first conductive wire (5); An insulating protective sleeve (3) is fixedly connected to the outside of the bendable fixed pipe fitting (2). The main body (1) of the test pen includes a pen body (6), the bendable fixed tube (2) is installed on the outside of the pen body (6), a conductive block (9) is fixedly connected to the lower end inside the pen body (6), the pen tip (4) is electrically connected to the conductive block (9), a resistor block (10) is electrically connected to the upper end of the conductive block (9), a neon tube (11) is electrically connected to the upper end of the resistor block (10), a spring (12) is electrically connected to the upper end of the neon tube (11), and a pen tail metal body (13) extending to the upper side of the pen body (6) is electrically connected to the upper end of the spring (12).

2. The portable electrical equipment fault diagnosis device according to claim 1, characterized in that: The pen tail metal body (13) is electrically connected to the movable metal body (16) via the second conductive line (14).

3. The portable electrical equipment fault diagnosis device according to claim 2, characterized in that: A magnetic metal sleeve (17) is fixedly connected to the outside of the pen body (6), and a magnet (15) is fixedly connected to the movable metal body (16).

4. The portable electrical equipment fault diagnosis device according to claim 1, characterized in that: The outer side of the test pen body (1) is fixedly connected to a guide block (7), the bendable fixed tube (2) is slidably connected inside the guide block (7), and a locking screw (8) is threaded onto the guide block (7).