High-voltage cable monitoring device

By designing a high-voltage cable monitoring device with a movable arc-shaped shell and an electric telescopic rod structure, the problem of fixed monitoring in existing technologies has been solved, enabling real-time voltage detection at different locations of high-voltage cables and improving cable maintenance.

CN223842091UActive Publication Date: 2026-01-27HUANGHUA POWER SUPPLY COMPANY OF STATE GRID QINGHAI ELECTRIC POWER +1
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Patent Information

Application Number
CN202422182862.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2026-01-27
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

Existing high-voltage cable sheath circulating current monitoring devices can only be fixed in one place for monitoring, which cannot effectively monitor cables in different locations, thus affecting the cable maintenance effect.

Method used

A high-voltage cable monitoring device was designed, comprising a movable arc-shaped shell, a power mechanism, and a voltage detection mechanism. The device utilizes an electric telescopic rod and a roller structure to achieve mobile monitoring, and uses a voltage detector to detect the voltage of the cable at different locations.

Benefits of technology

It enables real-time monitoring of different locations on high-voltage cables, improving cable maintenance efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223842091U_ABST
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Abstract

The utility model relates to the technical field of monitoring devices, in particular to a high-voltage cable monitoring device which comprises a movable arc-shaped shell, power mechanisms are arranged at the two ends in the movable arc-shaped shell, and a voltage detection mechanism is fixedly connected to the bottom of the inner side of the movable arc-shaped shell. The power mechanism comprises a first electric telescopic rod fixedly connected with the bottom of the inner side of the movable arc-shaped shell, the telescopic end of the first electric telescopic rod is movably connected with a movable rolling wheel, one side of the movable rolling wheel is fixedly connected with the transmission end of a small motor, and a third electric telescopic rod stretches out and draws back to conveniently push a fixing block to adjust the horizontal height; by adjusting the horizontal height of the fixed block, the first voltage detector on the monitoring frame is convenient to approach the high-voltage cable, so that the first voltage detector can move to detect whether the cable leaks electricity or not.
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Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, specifically a high-voltage cable monitoring device. Background Technology

[0002] High-voltage cables are a type of power cable, referring to power cables used to transmit power between 1kV and 1000kV, and are widely used in power transmission and distribution.

[0003] The "High-Voltage Cable Sheath Circulating Current Monitoring Device" disclosed in application number "CN210690668U" is also an increasingly mature technology. It "includes a monitoring terminal, a current transformer installed at the high-voltage cable joint for measuring the high-voltage cable current, a grounding circulating current acquisition device connected to the sheath of the high-voltage cable joint, and a signal transmission device. The grounding circulating current acquisition device is installed inside the monitoring terminal. The current transformer is connected to the monitoring terminal through an acquisition interface. An electromagnetic shielding sleeve is fitted around the outer periphery of the high-voltage cable joint, and an annular metal sheath is fitted around the outer periphery of the electromagnetic shielding sleeve. The annular metal sheath wraps around the outer periphery of the current transformer, forming a heat dissipation cavity between the annular metal sheath and the current transformer. An electromagnetic shielding layer is provided on the side of the annular metal sheath closest to the current transformer." This high-voltage cable sheath circulating current monitoring device can realize real-time monitoring of the grounding circulating current in the grounding box, promptly detect abnormal current faults, and automatically alarm in the background, ensuring the safe operation of the cable.

[0004] However, the above-mentioned high-voltage cable sheath circulating current monitoring device design has the following drawbacks: This high-voltage cable sheath circulating current monitoring device monitors the circulating current of high-voltage cables by combining a grounding circulating current acquisition device and an electromagnetic shielding layer structure. This type of monitoring device can only be fixed in one place to monitor the high-voltage cable and cannot monitor different locations of the cable, which affects the maintenance of cables in different locations.

[0005] Therefore, it is necessary to provide a high-voltage cable monitoring device to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a high-voltage cable monitoring device that solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage cable monitoring device, comprising a movable arc-shaped shell, wherein a power mechanism is provided at both ends of the interior of the movable arc-shaped shell;

[0008] A voltage detection mechanism is fixedly connected to the bottom inner side of the movable arc-shaped shell.

[0009] Preferably, the power mechanism includes a first electric telescopic rod fixedly connected to the bottom of the inner side of the movable arc-shaped shell. The telescopic end of the first electric telescopic rod is movably connected to a movable roller. One side of the movable roller is fixedly connected to the transmission end of a small motor. The two sides inside the movable arc-shaped shell are fixedly connected to a second electric telescopic rod. The telescopic end of the second electric telescopic rod is movably connected to an arc-shaped frame. The inner side of the arc-shaped frame is movably connected to several small rollers.

[0010] Preferably, the voltage detection mechanism includes a third electric telescopic rod fixedly connected to the inner bottom end of the movable arc-shaped shell. A fixing block is fixedly connected to the telescopic end of the third electric telescopic rod. Mounting frames are fixedly connected to the top two sides of the fixing block. A monitoring frame is fixedly connected to one end of each mounting frame. A first voltage detector is fixedly connected to the top and bottom of the monitoring frame.

[0011] Preferably, the two ends of the inner side of the movable arc-shaped shell are fixedly connected to a telescopic spring, and the telescopic end of each telescopic spring is fixedly connected to a second voltage detector.

[0012] Preferably, a storage battery is fixedly connected to the outer bottom of the movable arc-shaped shell.

[0013] Preferably, a PLC controller is fixedly connected to the bottom end of the movable arc-shaped shell, and the first electric telescopic rod, the small motor, the second electric telescopic rod, the third electric telescopic rod, and the first voltage detector are all electrically connected to the battery through the PLC controller.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a high-voltage cable monitoring device:

[0016] 1. When monitoring the voltage of cables, the extension and retraction of the first electric telescopic rod and two second electric telescopic rods facilitates the movement of the arc-shaped frame and the moving rollers to come close to the high-voltage cable. This allows the small motor to easily drive the moving rollers to rotate, and the several small rollers on the arc-shaped frame work together as the moving rollers rotate, making it easy for the arc-shaped frame to move and monitor the high-voltage cable. This facilitates monitoring of high-voltage cables at different locations and makes future maintenance easier.

[0017] 2. The extension and retraction of the third electric telescopic rod facilitates the adjustment of the horizontal height of the fixed block. By adjusting the horizontal height of the fixed block, the first voltage detector on the monitoring frame can be brought closer to the high-voltage cable, allowing the first voltage detector to move and detect whether the cable is leaking electricity. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is one of the structural schematic diagrams of this utility model;

[0020] Figure 3 This is a schematic diagram of the voltage detection mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the second electric telescopic rod structure of this utility model.

[0022] In the diagram: 1. Movable arc-shaped shell; 2. Power mechanism; 201. First electric telescopic rod; 202. Movable roller; 203. Small motor; 204. Second electric telescopic rod; 205. Arc-shaped frame; 206. Small roller;

[0023] 3. Voltage detection mechanism; 301. Third electric telescopic rod; 302. Fixing block; 303. Mounting bracket; 304. Monitoring bracket; 305. First voltage detector; 4. Telescopic spring; 401. Second voltage detector; 5. Storage battery. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, the high-voltage cable monitoring device proposed in this utility model includes a movable arc-shaped shell 1, and a power mechanism 2 is provided at both ends of the interior of the movable arc-shaped shell 1.

[0026] A voltage detection mechanism 3 is fixedly connected to the bottom inner side of the movable arc-shaped shell 1.

[0027] The power mechanism 2 includes a first electric telescopic rod 201 fixedly connected to the bottom of the inner side of the movable arc-shaped shell 1. The telescopic end of the first electric telescopic rod 201 is movably connected to a movable roller 202. One side of the movable roller 202 is fixedly connected to the transmission end of a small motor 203. The two sides inside the movable arc-shaped shell 1 are fixedly connected to a second electric telescopic rod 204. The telescopic end of the second electric telescopic rod 204 is movably connected to an arc-shaped frame 205. Several small rollers 206 are movably connected to the inner side of the arc-shaped frame 205.

[0028] In practical use, when monitoring the voltage of the cable, it is necessary to perform mobile monitoring. The extension and retraction of the first electric telescopic rod 201 and the two second electric telescopic rods 204 facilitates the pushing of the arc frame 205 and the moving roller 202 to come into close contact with the high-voltage cable. This makes it easier for the small motor 203 to rotate, which in turn drives the moving roller 202 to rotate. When the moving roller 202 rotates, the several small rollers 206 on the arc frame 205 work together to facilitate the mobile arc shell 1 to perform mobile monitoring on the high-voltage cable.

[0029] The voltage detection mechanism 3 includes a third electric telescopic rod 301 fixedly connected to the inner bottom end of the movable arc-shaped shell 1. A fixing block 302 is fixedly connected to the telescopic end of the third electric telescopic rod 301. Mounting brackets 303 are fixedly connected to the top two sides of the fixing block 302. A monitoring bracket 304 is fixedly connected to one end of each mounting bracket 303. A first voltage detector 305 is fixedly connected to the top and bottom of the monitoring bracket 304.

[0030] In practical use, the extension and retraction of the third electric telescopic rod 301 facilitates the adjustment of the horizontal height by pushing the fixed block 302. The adjustment of the horizontal height of the fixed block 302 makes it easier for the first voltage detector 305 on the monitoring frame 304 to approach the high-voltage cable, so that the first voltage detector 305 can move to detect whether the cable is leaking electricity.

[0031] The two ends of the inner side of the movable arc-shaped shell 1 are fixedly connected to telescopic springs 4, and the telescopic end of each telescopic spring 4 is fixedly connected to a second voltage detector 401.

[0032] In practical use, the extension and retraction of the set telescopic spring 4 facilitates the second voltage detector 401 to further detect the voltage of the high-voltage cable, ensuring the normal maintenance and operation of the high-voltage cable.

[0033] A battery 5 is fixedly connected to the bottom outer side of the movable arc-shaped shell 1.

[0034] In practical use, the high-voltage cable monitoring device is powered by the installed battery 5, and the electrical equipment on the high-voltage cable monitoring device is controlled by the installed controller.

[0035] A PLC controller is fixedly connected to the bottom of the movable arc-shaped shell 1. The first electric telescopic rod 201, the small motor 203, the second electric telescopic rod 204, the third electric telescopic rod 301 and the first voltage detector 305 are all electrically connected to the storage battery 5 through the PLC controller.

[0036] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-voltage cable monitoring device, comprising a movable arc-shaped shell (1), characterized in that, The movable arc-shaped shell (1) has a power mechanism (2) at both ends inside. A voltage detection mechanism (3) is fixedly connected to the bottom of the inner side of the movable arc shell (1); The power mechanism (2) includes a first electric telescopic rod (201) fixedly connected to the bottom of the inner side of the movable arc shell (1). The telescopic end of the first electric telescopic rod (201) is movably connected to a movable roller (202). One side of the movable roller (202) is fixedly connected to the transmission end of a small motor (203). The two sides inside the movable arc shell (1) are fixedly connected to a second electric telescopic rod (204). The telescopic end of the second electric telescopic rod (204) is movably connected to an arc frame (205). The inner side of the arc frame (205) is movably connected to several small rollers (206).

2. The high-voltage cable monitoring device according to claim 1, characterized in that: The voltage detection mechanism (3) includes a third electric telescopic rod (301) fixedly connected to the inner bottom end of the movable arc shell (1). The telescopic end of the third electric telescopic rod (301) is fixedly connected to a fixing block (302). Mounting brackets (303) are fixedly connected to the top two sides of the fixing block (302). A monitoring frame (304) is fixedly connected to one end of each mounting bracket (303). A first voltage detector (305) is fixedly connected to the top and bottom of the monitoring frame (304).

3. The high-voltage cable monitoring device according to claim 2, characterized in that: The two ends of the inner side of the movable arc shell (1) are fixedly connected to telescopic springs (4), and the telescopic end of each telescopic spring (4) is fixedly connected to a second voltage detector (401).

4. The high-voltage cable monitoring device according to claim 1, characterized in that: A battery (5) is fixedly connected to the bottom outer side of the movable arc-shaped shell (1).

5. A high-voltage cable monitoring device according to claim 1, characterized in that: The bottom of the movable arc-shaped shell (1) is fixedly connected to a PLC controller. The first electric telescopic rod (201), the small motor (203), the second electric telescopic rod (204), the third electric telescopic rod (301) and the first voltage detector (305) are all electrically connected to the battery (5) through the PLC controller.

Citation Information

Patent Citations

  • High-voltage cable sheath circulation monitoring device

    CN210690668U