Power line detection equipment
By designing a power line testing device with a snap-fit contact mechanism, the problem of test result deviation caused by the small contact area of traditional testing equipment has been solved, achieving higher testing accuracy and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUCON CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional power line testing equipment detects cable electrical parameters by point or small-area contact, which leads to inaccurate test results and fails to accurately reflect the overall operating status of the cable, posing safety hazards.
Design a power line testing device that adopts a snap-fit contact mechanism. The device uses a contact plate that wraps around the cable to snap it in place, transforming it into a large-area wrap-around contact, which increases the contact area and improves the accuracy and reliability of the test.
It enables more comprehensive and uniform sensing of electrical signals on the cable surface, improving the accuracy and reliability of detection and eliminating safety hazards caused by uneven detection.
Smart Images

Figure CN224190217U_ABST
Abstract
Description
A power line testing device Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a power line testing device. Background Technology
[0002] In the daily maintenance and monitoring of power systems, it is crucial to accurately detect the voltage and current parameters of power lines. For a long time, traditional power line testing equipment has mostly adopted a telescopic pole structure, which directly inserts the sampling or testing head into and contacts the cable to achieve the testing function. However, this traditional design has revealed many drawbacks in practical applications.
[0003] On the one hand, the direct contact method used in this device has inherent shortcomings. Because the contact between the detection head and the cable is only a point or a small area, the contact area is relatively small. When detecting voltage and current, this small-area contact makes it difficult to comprehensively and evenly perceive the electrical parameters of various parts of the cable, leading to deviations in the detection results. This results in an inability to truly reflect the overall operating status of the cable, making the detection uneven and posing a hidden danger to the safety assessment of power lines. Based on this, a new type of handheld power line detection device was designed. A snap-fit contact mechanism is set on the upper part of the device, and its sensing plate can tightly wrap around the cable to snap it in place. This changes the contact between the device and the cable from the traditional small-area point contact to a large-area wrap-around contact, thereby enabling a more comprehensive and even perception of the electrical signals on the cable surface and improving the accuracy and reliability of the detection. Summary of the Invention
[0004] The purpose of this utility model is to provide a power line testing device. The upper part of the device is equipped with a snap-fit contact mechanism, and its power collection plate can tightly snap around the cable. This changes the contact method between the device and the cable from the traditional small-area point contact to a large-area surround contact, which can more comprehensively and uniformly sense the electrical signals on the cable surface and improve the accuracy and reliability of the test.
[0005] The technical implementation scheme of this utility model is as follows:
[0006] A power line testing device includes a testing body, a display, a telescopic rod, and a power sampling mechanism. One end of the testing body is connected to the power sampling mechanism via the telescopic rod. The power sampling mechanism includes a connecting support, a connecting ring, a first fixing lug, a power sampling plate, and a conductor box. The connecting support has symmetrically arranged fixing lugs on its upper part, and the power sampling plate is movably mounted on a first rotating shaft inside the first fixing lug. One end of the power sampling plate has a first power sampling piece and a second power sampling piece. The connecting support has a second fixing lug inside, and the connecting support is connected to a power sampling wheel via a connecting rod. The power sampling wheel is connected to one side of the power sampling plate. The connecting rod is connected to the testing body via a conductive wire.
[0007] Optionally, a connecting ring is provided on one side of the connecting support, and a wire box is provided inside the connecting ring.
[0008] Optionally, the wire box is equipped with a winding wheel, and the conductive wire is connected to the power interface of the detection machine through the winding wheel.
[0009] Optionally, a torsion spring is provided at the connection between the power collection plate and the first rotating shaft inside the first fixed ear.
[0010] Optionally, one end of the connecting rod is movably connected to the second rotating shaft inside the second fixed ear, and a torsion spring is provided at the connection between the connecting rod and the second rotating shaft.
[0011] Optionally, the telescopic rod is formed by connecting multiple connecting rods, and telescopic rod retaining springs are provided on the connecting rods.
[0012] Optionally, the upper part of the testing machine body is provided with a display and a button area, and the upper part of the testing machine body is provided with a lifting handle.
[0013] This utility model has the following advantages:
[0014] 1. In this utility model, one end of the detection machine is connected to the power collection mechanism via a telescopic rod. The entire structure adopts a multi-connecting rod structure, which can be extended and adjusted as needed. Moreover, a telescopic rod retaining spring is set on the upper part of each rod for fixing after extension, which facilitates the operation of the operator.
[0015] 2. This utility model designs a power collection mechanism, wherein power collection plates are symmetrically arranged at both ends of the connecting support, and a first power collection piece and a second power collection piece are arranged on the power collection plate. In use, when the second power collection piece contacts the wire, the entire power collection plate will rotate and move by pressing forward, while the first power collection piece will contact the other side of the cable to form a covering structure, thereby increasing the contact area and improving the stability of detection. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the structure of this utility model.
[0017] Figure 2 is a front view of this utility model.
[0018] Figure 3 is a structural schematic diagram of the power collection mechanism of this utility model in its enclosed state.
[0019] Figure 4 is a schematic diagram of the power acquisition mechanism of this utility model.
[0020] Figure 5 is a schematic diagram of the power acquisition mechanism of this utility model.
[0021] The meanings of the reference numerals in the figure are as follows: 1-Detection body, 2-Display, 3-Lifting handle, 5-Telescopic rod, 6-Power collection mechanism, 601-Connecting support, 602-Connecting ring, 603-Wire box, 604-First fixing ear, 605-Power collection plate, 606-Conductive wire, 607-Connecting rod, 608-First power collection piece, 609-Second power collection piece. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0023] As shown in Figures 1-5, a power line testing device includes a testing body 1, a display 2, a telescopic rod 5, and a power acquisition mechanism 6. One end of the testing body 1 is connected to the power acquisition mechanism 6 via the telescopic rod 5. The power acquisition mechanism 6 includes a connecting support 601, a connecting ring 602, a first fixing ear 604, a power acquisition plate 605, and a conductor box 603. The fixing ears 604 are symmetrically arranged on the upper part of the connecting support 601, and the power acquisition plate 605 is movably arranged on the first rotating shaft inside the first fixing ear 604. One end of the power acquisition plate 605 is provided with a first power acquisition piece 608 and a second power acquisition piece 609. The connecting support 601 is provided with a second fixing ear inside, and the connecting support 601 is connected to the power acquisition wheel via a connecting rod 607. The power acquisition wheel is connected to one side of the power acquisition plate 605. The connecting rod 607 is connected to the testing body 1 via a conductive wire 606.
[0024] It should be noted that during power testing, voltage and current at the cable are frequently tested. In this process, the traditional method is to directly connect the test head to the insulated rod and make contact with the outside of the cable for testing. In this process, due to the small contact area, the test results are biased and cannot truly reflect the overall operating status of the cable. This results in uneven testing and poses a hidden danger to the safety assessment of power lines. Based on this, a testing device that can increase the contact area was designed to improve the accuracy of the test.
[0025] It should be further explained that one end of the detection body 1 is connected to the power collection mechanism 6 via a telescopic rod 5. The operator can adjust the length of the telescopic rod 5 and complete the detection through the connection between the detection body 1 and the cable. The connecting support 601 has first fixing ears 604 symmetrically arranged at both ends, and a power collection plate 605 is movably arranged inside it. On both sides of the power collection plate 605, a first power collection piece 608 and a second power collection piece 609 are arranged. In use, when the second power collection piece contacts the wire, it is pressed forward, and the entire power collection plate will rotate. At the same time, the first power collection piece will contact the other side of the cable, forming a covering structure to increase the contact area and improve the stability of the detection.
[0026] As shown in Figures 1-5, a connecting ring 602 is provided on one side of the connecting support 601, and a wire box 603 is provided inside the connecting ring 602; a winding wheel is provided inside the wire box 603, and the conductive wire 606 is connected to the power interface of the detection machine body 1 through the winding wheel.
[0027] It should be noted that the connecting support 601 is connected to the power sampling wheel via the connecting rod 607, and the power sampling wheel can be connected to one side of the power sampling plate 605 and connected to the detection body 1 via the conductive wire 606, thereby completing the cable detection.
[0028] It should be noted that the cable box 603 is set up for guiding the cable line. The conductive wire 606 is connected to the detection body 1 through the cable box 603, which facilitates the arrangement of the conductive wire 606.
[0029] As shown in Figures 1-5, a torsion spring is provided at the connection between the power collection plate 605 and the first rotating shaft inside the first fixing ear 604; one end of the connecting rod 607 is movably connected to the second rotating shaft inside the second fixing ear, and a torsion spring is provided at the connection between the connecting rod 607 and the second rotating shaft.
[0030] It should be noted that the torsion spring is designed to provide a torsional force to the entire power acquisition plate 605, so that in the normal state, the entire second power acquisition piece 609 is in a vertical position. After it comes into contact with the cable, the entire power acquisition plate 605 rotates, thereby increasing the contact area at the point where the first power acquisition piece 608 connects with the other side of the cable.
[0031] It should be further explained that the connecting rod 607 is designed on the same principle, so that its power collection wheel can always be connected to the power collection plate 605.
[0032] As shown in Figures 1-5, the telescopic rod 5 is formed by connecting multiple connecting rods, and a telescopic rod retaining spring is provided on the connecting rod; the upper part of the detection body 1 is provided with a display 2 and a button area, and the upper part of the detection body 1 is provided with a lifting handle 3.
[0033] It should be noted that the upper part of the testing unit 1 is equipped with a display 2 and a button area for easy display and recording of testing data.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A power line testing device, comprising a testing body (1), a display (2), a telescopic pole (5), and a power acquisition mechanism (6), characterized in that, One end of the detection body (1) is connected to the power collection mechanism (6) via a telescopic rod (5); the power collection mechanism (6) includes a connecting support (601), a connecting ring (602), a first fixing ear (604), a power collection plate (605) and a conductor box (603). The upper part of the connecting support (601) is symmetrically provided with fixing ears (604), and the power collection plate (605) is movably arranged on the first rotating shaft inside the first fixing ear (604); one end of the power collection plate (605) is provided with a first power collection piece (608) and a second power collection piece (609); the connecting support (601) is provided with a second fixing ear inside, and the connecting support (601) is connected to the power collection wheel via a connecting rod (607). The power collection wheel is connected to one side of the power collection plate (605); the connecting rod (607) is connected to the detection body (1) via a conductive wire (606).
2. The power line testing equipment according to claim 1, characterized in that, A connecting ring (602) is provided on one side of the connecting support (601), and a wire box (603) is provided inside the connecting ring (602).
3. A power line testing device according to claim 2, characterized in that, The wire box (603) is equipped with a winding wheel inside, and the conductive wire (606) is connected to the power interface of the detection body (1) through the winding wheel.
4. A power line testing device according to claim 1, characterized in that, A torsion spring is provided at the connection between the power collection plate (605) and the first rotating shaft inside the first fixed ear (604).
5. A power line testing device according to claim 1, characterized in that, One end of the connecting rod (607) is movably connected to the second rotating shaft inside the second fixed ear, and a torsion spring is provided at the connection between the connecting rod (607) and the second rotating shaft.
6. A power line testing device according to claim 1, characterized in that, The telescopic rod (5) is formed by connecting multiple connecting rods, and a telescopic rod retaining spring is provided on the connecting rod.
7. A power line testing device according to claim 1, characterized in that, The upper part of the testing machine (1) is equipped with a display (2) and a button area, and the upper part of the testing machine (1) is equipped with a lifting handle (3).