An overhead line ground fault searching device based on current method
Patent Information
- Application Number
- CN202521835010.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-08-27
AI Technical Summary
对于较长的架空输电线路，寻找接地点通常依赖电流接地故障定位仪器，这些设备包括测量装置主体、搭线绝缘杆、信号感应端设备、手持显示器设备及各种连接线缆等，然而，现有设备存在携带不便、组件繁多且易缠绕的问题，极大地影响现场作业效率
收纳箱作为主体结构与防护外壳集成所有功能模块，底端福马轮组便于装置整体便捷移动，提升户外故障查找时的搬运灵活性，密封盖通过合页转动开启，其上的显示器可随开启状态便捷查看，配合限位机构固定密封盖开启位置，避免查看时晃动影响操作，同时密封盖对内部部件形成防护，驱动机构驱动移动件带动故障巡查仪位移，可按需调整故障巡查仪的使用或收纳位置，收纳仓滑动安装于收纳箱底端内腔，能分类存放辅助工具与耗材，定位机构确保其与收纳箱连接稳固，避免移动时移位丢失，提升架空线路接地故障查找的便利性。
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Figure CN224816448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grounding fault detection, and in particular to a grounding fault location device for overhead lines based on the current method. Background Technology
[0002] During the operation of power systems, overhead lines frequently experience grounding faults due to natural disasters, human error, or other factors. These faults not only cause power outages but also pose a serious threat to the safe and stable operation of the power grid. Single-phase grounding faults are the most common and can be classified into permanent and transient types. For long overhead transmission lines, locating grounding points typically relies on current-based grounding fault location instruments. These instruments include the main measuring device, insulated connecting rods, signal sensing terminals, handheld displays, and various connecting cables. However, existing equipment is inconvenient to carry, has numerous components, and is prone to tangling, significantly impacting on-site operational efficiency. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides an overhead line grounding fault location device based on the current method.
[0004] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses an overhead line grounding fault location device based on the current method, comprising: The storage box is independently and fixedly installed, and the bottom of the storage box is equipped with a set of casters. The sealing cover is installed in the slot at the top of the storage box by rotating via a hinge. The monitor is installed on the sealing cover, and a limit mechanism is installed on the sealing cover and the storage box. The movable part is slidably installed inside the cavity of the storage box, and the fault inspection instrument is installed on the movable part; The drive mechanism, mounted on the storage box, is used to move the fault inspection instrument by moving the component. The storage compartment is slidably installed in the inner cavity at the bottom of the storage box, and a positioning mechanism is installed on the storage compartment for connecting with the storage box.
[0005] Furthermore, the drive mechanism includes: Two support shafts are symmetrically and rotatably installed inside the cavity of the storage box. Swing arms are installed on both ends of the support shafts, and drive shafts are rotatably installed on the two swing arms. A connector is mounted on the movable part, and two drive shafts are slidably mounted in the inner groove of the connector. The power mechanism, mounted on the storage box, is used to provide rotational power to the two support shafts.
[0006] Furthermore, the power mechanism includes: The drive shaft is rotatably mounted on the storage box, and two worm gears are coaxially mounted on the drive shaft. Two worm gears are coaxially mounted on two support shafts, with the worm gears on the same side of the worm meshing with each other; The transmission mechanism is mounted on the drive shaft.
[0007] Furthermore, the teeth of the two worms and the two worm wheels are oriented in opposite directions.
[0008] Furthermore, the transmission mechanism includes: An extension beam is fixedly installed on the drive shaft, and a storage groove is provided on the extension beam. The rocker arm is rotatably mounted on the extension beam, and damping is provided at the sliding connection between the rocker arm and the storage groove of the extension beam.
[0009] Furthermore, the positioning mechanism includes: The transmission shaft is rotatably installed in the storage compartment. One end of the transmission shaft is equipped with a locking plate, which is slidably connected to the inner wall of the storage box. The adjusting cap is coaxially mounted on the transmission shaft. The adjusting cap is used to drive the displacement of the storage compartment and the rotation of the locking plate.
[0010] Furthermore, the limiting mechanism includes: A positioning post is installed on the sealing cover, and a support arm is rotatably mounted on the positioning post. The positioning pin is installed on the support arm and is plugged into the positioning hole reserved on the storage box.
[0011] Furthermore, a flip handle is installed on the sealing cap.
[0012] In the above technical solution, the overhead line grounding fault location device based on the current method provided by this utility model has the following beneficial effects: The storage box, serving as the main structure and protective shell, integrates all functional modules. The bottom-mounted casters facilitate easy movement of the entire device, enhancing its flexibility during outdoor fault location. The sealing cover opens via a hinge, allowing for convenient viewing of its open position via a display screen. A limiting mechanism secures the opening position of the sealing cover, preventing shaking that could affect operation. Simultaneously, the sealing cover protects internal components. A drive mechanism moves the fault detector, allowing for adjustment of its usage or storage location as needed. The storage compartment slides into the bottom cavity of the storage box, enabling the categorized storage of auxiliary tools and consumables. A positioning mechanism ensures a secure connection between the compartment and the storage box, preventing displacement and loss during movement, thus improving the convenience of locating grounding faults in overhead lines. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the opening structure of this utility model; Figure 3 This is a schematic diagram of the axial side structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of this utility model; Figure 5 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 6 This is a schematic diagram of the limiting mechanism structure of this utility model; The attached diagram is labeled as follows: 1. Storage box; 2. Fouma wheel set; 3. Sealing cover; 4. Limiting mechanism; 41. Positioning post; 42. Support arm; 43. Positioning pin; 5. Moving part; 6. Drive mechanism; 61. Support shaft; 62. Swing arm; 63. Transmission shaft; 64. Connecting part; 65. Power mechanism; 65a. Power shaft; 65b. Worm gear; 65c. Worm wheel; 65d. Transmission mechanism; 65d1. Extension beam; 65d2. Rocker arm; 7. Storage compartment; 8. Positioning mechanism; 81. Transmission shaft; 82. Locking plate; 83. Adjusting cap; 9. Flip handle. Detailed Implementation
[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0016] like Figures 1 to 6 As shown; An embodiment of this utility model provides an overhead line grounding fault location device based on the current method, comprising: Storage box 1 is the main structure and protective shell of the entire device. It is used to integrate all functional modules and is independently fixed. The bottom of storage box 1 is equipped with a set of fuma wheels 2, which is used to facilitate the movement of the device. The sealing cover 3 is installed in the slot at the top of the storage box 1 by hinge rotation. The display is installed on the sealing cover 3. The sealing cover 3 and the storage box 1 are equipped with a limiting mechanism 4. The limiting mechanism 4 is used to fix the opening state of the sealing cover 3. The movable part 5 is slidably installed inside the cavity of the storage box 1, and the fault inspection instrument is installed on the movable part 5; Drive mechanism 6 is installed on storage box 1. Drive mechanism 6 is used to move component 5 to drive the fault inspection instrument to move. Storage compartment 7, used to store auxiliary tools and consumables, is slidably installed in the inner cavity at the bottom of storage box 1. Storage compartment 7 is equipped with a positioning mechanism 8 for connecting with storage box 1. By adopting the above technical solution, the storage box 1, as the main structure and protective shell, integrates all functional modules. The bottom wheel set 2 facilitates the convenient movement of the entire device, improving the handling flexibility when searching for faults outdoors. The sealing cover 3 is opened by rotating the hinge, and the display on it can be easily viewed when it is open. The limiting mechanism 4 fixes the opening position of the sealing cover 3 to prevent shaking during viewing and affecting operation. At the same time, the sealing cover 3 protects the internal components. The drive mechanism 6 drives the moving part 5 to move the fault inspector. The use or storage position of the fault inspector can be adjusted as needed. The storage compartment 7 is slidably installed in the inner cavity at the bottom of the storage box 1, which can classify and store auxiliary tools and consumables. The positioning mechanism 8 ensures that it is firmly connected to the storage box 1, preventing displacement and loss during movement, and improving the convenience of finding grounding faults in overhead lines.
[0017] As a preferred embodiment of the above technical solution, such as Figures 1 to 5 As shown, the drive mechanism 6 includes: Two support shafts 61 are symmetrically and rotatably installed inside the cavity of the storage box 1. Swing arms 62 are installed on both ends of the support shafts 61, and drive shafts 63 are rotatably installed on the two swing arms 62. The connector 64 is mounted on the movable part 5, and the two drive shafts 63 are slidably mounted in the inner groove of the connector 64 respectively; A power mechanism 65 is installed on the storage box 1. The power mechanism 65 is used to provide rotational power to the two support shafts 61. In this embodiment, the two support shafts 61 of the drive mechanism 6 are symmetrically rotated and installed inside the cavity of the storage box 1. The swing arms 62 at both ends of the drive mechanism 6 and the transmission shaft 63 cooperate to form a stable linkage structure. When the power mechanism 65 provides rotational power to the support shafts 61, the swing arms 62 will drive the transmission shaft 63 to move synchronously. The sliding cooperation of the transmission shaft 63 in the inner groove of the connector 64 can smoothly convert the rotational motion of the support shaft 61 into the linear displacement of the moving part 5, ensuring that the fault inspector can quickly switch between storage and use positions. The symmetrically arranged support shafts 61 and swing arms 62 can provide balanced support for the moving part 5, preventing tilting or displacement of the fault inspector due to uneven force during displacement, and ensuring the safety of equipment use.
[0018] As a preferred embodiment of the above technical solution, such as Figures 1 to 5 As shown, the power mechanism 65 includes: The drive shaft 65a is rotatably mounted on the storage box 1, and two worm gears 65b are coaxially mounted on the drive shaft 65a. Two worm gears 65c are coaxially mounted on two support shafts 61, and the worm gears 65c on the same side of the worm 65b are engaged. The transmission mechanism 65d is mounted on the drive shaft 65a; The teeth of the two worms 65b and the two worm wheels 65c have opposite directions; In this embodiment, two worm gears 65b coaxially mounted on the power shaft 65a mesh with worm wheels 65c on the two support shafts 61, respectively. The teeth of the two worm gears 65b and the worm wheels 65c have opposite directions, so that when the power shaft 65a rotates, it can drive the two support shafts 61 to rotate synchronously in opposite directions, ensuring that the movement direction of the swing arms 62 on both sides is consistent, thereby driving the moving part 5 to move smoothly in a straight line. The transmission mechanism 65d increases the rotational torque of the power shaft 65a. The meshing transmission of the worm gears 65b and the worm wheels 65c has both high transmission accuracy and self-locking function, which can accurately control the rotation angle of the support shafts 61 to position the moving part 5, while preventing the moving part 5 from being accidentally displaced by external forces during use, thus ensuring the stability of the fault inspection instrument during use.
[0019] As a preferred embodiment of the above technical solution, such as Figures 1 to 5 As shown, the transmission mechanism 65d includes: The extension beam 65d1 is fixedly installed on the power shaft 65a, and a storage groove is provided on the extension beam 65d1. The rocker arm 65d2 is rotatably mounted on the extension beam 65d1, and the sliding connection between the rocker arm 65d2 and the storage groove of the extension beam 65d1 is provided with damping. In this embodiment, the extension beam 65d1 provides a mounting base for the rocker arm 65d2. Its storage slot can store the rocker arm 65d2 when it is not in use, reducing space occupation. The rocker arm 65d2 is rotatably mounted on the extension beam 65d1. The operator can drive the power shaft 65a to rotate by shaking the rocker arm 65d2 with less effort, reducing the difficulty of manual drive. Moreover, the damping at the sliding connection between the rocker arm 65d2 and the storage slot can fix the use angle of the rocker arm 65d2, improving the convenience of manual operation of the device outdoors.
[0020] As a preferred embodiment of the above technical solution, such as Figures 1 to 3 As shown, the positioning mechanism 8 includes: The transmission shaft 81 is rotatably installed in the storage compartment 7. One end of the transmission shaft 81 is equipped with a locking piece 82, which is slidably connected to the inner wall of the storage box 1. Adjusting cap 83 is coaxially mounted on transmission shaft 81. Adjusting cap 83 is used to drive the displacement of storage compartment 7 and the rotation of locking plate 82. In this embodiment, rotating the adjusting cap 83 can drive the transmission shaft 81 to rotate, thereby making the locking plate 82 and the inner wall of the storage box 1 locked together, realizing the quick positioning of the storage compartment 7 and the storage box 1. At the same time, the adjusting cap 83 can be directly used as a gripping part, making it easy for the operator to pull or push the storage compartment 7 to achieve sliding displacement without the need for an additional handle, simplifying the structure and improving the ease of operation.
[0021] As a preferred embodiment of the above technical solution, such as Figures 2 to 6 As shown, the limiting mechanism 4 includes: Positioning post 41 is installed on sealing cover 3, and support arm 42 is rotatably mounted on positioning post 41; Positioning pin 43 is installed on support arm 42 and is plugged into the positioning hole reserved on storage box 1. In this embodiment, the positioning post 41 provides a stable base for the support arm 42 to rotate. Rotating the support arm 42 can drive the positioning pin 43 on it to engage with the positioning hole reserved in the storage box 1, so as to quickly fix and unlock the sealing cover 3 in the open state. When the sealing cover 3 is opened to a suitable viewing angle, the positioning pin 43 is inserted into the positioning hole to effectively prevent the sealing cover 3 from shaking due to external force or its own weight, ensuring the stability of the display when viewing and avoiding affecting the reading of fault finding data.
[0022] As a preferred embodiment of the above technical solution, such as Figures 1 to 3 As shown, a flip handle 9 is installed on the sealing cover 3; In this embodiment, the flip handle 9 provides a convenient grip for the operator to open or close the sealing cover 3.
[0023] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A grounding fault location device for overhead lines based on the current method, characterized in that, include: Storage box (1), independently fixed, with a set of fuma wheels (2) at the bottom of the storage box (1); A sealing cover (3) is installed at the slot at the top of the storage box (1) by means of a hinge. A display is installed on the sealing cover (3). A limiting mechanism (4) is installed on the sealing cover (3) and the storage box (1). The movable part (5) is slidably installed inside the cavity of the storage box (1), and the fault inspection instrument is installed on the movable part (5); A drive mechanism (6) is installed on the storage box (1). The drive mechanism (6) is used to drive the fault inspection instrument to move by the moving part (5). The storage compartment (7) is slidably installed in the inner cavity at the bottom of the storage box (1), and the storage compartment (7) is equipped with a positioning mechanism (8) for connecting with the storage box (1).
2. The overhead line grounding fault location device based on the current method as described in claim 1, characterized in that, The drive mechanism (6) includes: Two support shafts (61) are symmetrically and rotatably installed inside the cavity of the storage box (1). Swing arms (62) are installed on both sides of the support shafts (61), and transmission shafts (63) are rotatably installed on the two swing arms (62). A connector (64) is mounted on the movable part (5), and the two drive shafts (63) are respectively slidably mounted in the inner groove of the connector (64); A power mechanism (65) is installed on the storage box (1) and is used to provide rotational power to the two support shafts (61).
3. The overhead line grounding fault location device based on the current method as described in claim 2, characterized in that, The power mechanism (65) includes: A power shaft (65a) is rotatably mounted on the storage box (1), and two worm gears (65b) are coaxially mounted on the power shaft (65a); Two worm gears (65c) are coaxially mounted on the two support shafts (61), and the worm gears (65c) on the same side of the worm (65b) are meshed together. The transmission mechanism (65d) is mounted on the power shaft (65a).
4. The overhead line grounding fault location device based on the current method as described in claim 3, characterized in that, The teeth of the two worms (65b) and the two worm wheels (65c) are oriented in opposite directions.
5. The overhead line grounding fault location device based on the current method as described in claim 3, characterized in that, The transmission mechanism (65d) includes: An extension beam (65d1) is fixedly installed on the power shaft (65a), and a storage groove is provided on the extension beam (65d1); The rocker arm (65d2) is rotatably mounted on the extension beam (65d1), and the rocker arm (65d2) and the storage groove of the extension beam (65d1) are provided with damping.
6. The overhead line grounding fault location device based on the current method as described in claim 1, characterized in that, The positioning mechanism (8) includes: A transmission shaft (81) is rotatably installed in the storage compartment (7). A locking piece (82) is installed at one end of the transmission shaft (81). The locking piece (82) is slidably connected to the inner wall of the storage box (1). An adjusting cap (83) is coaxially mounted on the transmission shaft (81). The adjusting cap (83) is used to drive the displacement of the storage compartment (7) and the rotation of the locking piece (82).
7. The overhead line grounding fault location device based on the current method as described in claim 1, characterized in that, The limiting mechanism (4) includes: A positioning post (41) is installed on the sealing cover (3), and a support arm (42) is rotatably mounted on the positioning post (41); A positioning pin (43) is installed on the support arm (42), and the positioning pin (43) is plugged into the positioning hole reserved on the storage box (1).
8. The overhead line grounding fault location device based on the current method as described in claim 1, characterized in that, A flip handle (9) is installed on the sealing cover (3).