An auxiliary fault analysis device for overhead lines

Abstract

This utility model relates to the field of power system testing and maintenance technology, and discloses an overhead line auxiliary fault analysis device. This novel overhead line auxiliary fault analysis device, by setting up a multi-stage telescopic detection rod module and a clamping detection head structure, enables stable clamping and electrical parameter testing of high-altitude overhead lines from the ground, avoiding the safety risks and operational complexity of traditional high-altitude operations, significantly improving testing efficiency and on-site operational safety. At the same time, the adoption of a rotatable ground wire assembly and an automatic card receiving and receiving structure makes grounding operations more convenient and reliable. The ground wire connector can be quickly inserted into the ground and securely connected. With the help of the wire harness reel, the grounding wire harness can be orderly stored and quickly released, improving the overall portability and practicality of the device, and making it suitable for overhead line fault analysis scenarios in various complex environments.

Description

Technical Field

[0001] This utility model relates to the field of power system detection and maintenance technology, specifically to an overhead line auxiliary fault analysis device. Background Technology

[0002] In urban power distribution networks and rural low-voltage transmission systems, a large number of overhead lines are used for power transmission. Their conductor height is usually several meters above the ground, which is considered a relatively low-altitude line. Although these lines can be accessed without the need for high-altitude work equipment, when conducting electrical parameter testing and fault analysis, operators still need to manually attach the testing probes to the conductors using insulated poles or ladders. This presents problems such as inconvenience, low efficiency, and poor safety.

[0003] Currently, most overhead line testing tools on the market are simple handheld insulating rods or portable testing instruments, lacking integrated design, with complex grounding device connections and messy ground wire storage. These issues can easily lead to poor contact and unstable data during field use. Furthermore, some testing equipment lacks quick clamping and automatic locking functions, resulting in cumbersome operation and poor repeatability, making it difficult to meet the practical needs of efficient and accurate testing of low-height overhead lines during daily inspections. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an overhead line auxiliary fault analysis device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an overhead line auxiliary fault analysis device, comprising a toolbox with a detector mounted on it; a detection rod module, consisting of three sets that pass through the toolbox, with a clamping detection head mounted on the top of the toolbox for clamping the overhead line for detection; a grounding assembly mounted on one side of the toolbox, with a grounding connector mounted on the same side for inserting into the ground to connect to the grounding wire; and a storage assembly mounted on the side of the toolbox away from the grounding assembly.

[0006] As a further description of the above technical solution:

[0007] The detection rod module includes: a detection rod assembly passing through the inside of the toolbox; a clamping detection head disposed on the top side of the toolbox away from the detector; a fixing groove formed on the top side of the toolbox away from the detector, with the clamping detection head placed inside the fixing groove; two sets of clamping blocks disposed inside the toolbox, passing through the toolbox, with the upper set moving up and down inside the toolbox; two sets of clamping bolts threadedly connected to both sides of the clamping blocks; a first pressing block sliding inside the toolbox on the side away from the detector; a first locking connector sliding at the bottom of the fixing groove, with one end fixedly connected to the side of the first pressing block near the inside of the toolbox; and a first spring disposed inside the toolbox at the bottom of the fixing groove, with one end fixedly connected to the end of the first locking connector away from the first pressing block.

[0008] As a further description of the above technical solution:

[0009] The detection rod assembly includes: a first detection rod, passing through the toolbox and disposed inside the clamping block; a first tightening cylinder, disposed at one end of the first detection rod, and having threads on its outer wall; a first threaded cylinder, disposed at one end of the first detection rod, and having its internal threads meshing with the external threads of the first tightening cylinder; a second detection rod, extending and retracting inside the first detection rod; a second tightening cylinder, disposed at the end of the second detection rod away from the first detection rod, and having threads on its outer wall; a second threaded cylinder, disposed at one end of the second detection rod, and having its internal threads meshing with the external threads of the second tightening cylinder; and a third detection rod, extending and retracting inside the second detection rod, and having threads at the end away from the second detection rod.

[0010] As a further description of the above technical solution:

[0011] The grounding assembly includes: a rotating rod, one end of which is rotatably connected to the inside of the toolbox; a grounding connector, threaded to the other end of the rotating rod, and having a tapered head at the bottom; a placement slot, located inside the toolbox on the side away from the rotating rod; a second pressing block, located on the side of the toolbox near the rotating rod; a second locking connector, located inside the toolbox on the side of the rotating rod that is turned on, and fixedly connected to the second pressing block on the side near the inside of the toolbox; and a second spring, located inside the toolbox on the side near the second locking connector, and fixedly connected at its top to the bottom of the second locking connector.

[0012] As a further description of the above technical solution:

[0013] The storage assembly includes: a wire harness reel, disposed on the outer wall of the toolbox away from the rotating rod; a crank handle, disposed on one side of the wire harness reel; a grounding wire harness, wound inside the wire harness reel; and a clamping head, disposed at one end of the grounding wire harness.

[0014] As a further description of the above technical solution:

[0015] The clamping detection head has a threaded hole at the bottom that engages with the threaded top of the third detection rod, and a snap-fit ​​groove on its inner side that engages with the first snap-fit ​​connector.

[0016] As a further description of the above technical solution:

[0017] A snap-fit ​​groove is formed in the middle of the lower surface of the rotating rod to engage with the second snap-fit ​​connector.

[0018] This utility model has the following beneficial effects:

[0019] 1. By setting up a multi-stage telescopic detection rod module and a clamping detection head structure, stable clamping and electrical parameter detection of high-altitude overhead lines can be completed from the ground, avoiding the safety risks and operational complexity of traditional high-altitude operations, and significantly improving detection efficiency and on-site operation safety.

[0020] 2. By adopting a rotatable grounding wire assembly and an automatic card receiving and receiving structure, the grounding operation is made more convenient and reliable. The grounding wire connector can be quickly inserted into the ground and firmly connected. With the wire harness reel, the grounding wire harness can be stored in an orderly manner and released quickly, which improves the overall portability and practicality of the device. It is suitable for overhead line fault analysis scenarios in a variety of complex environments. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of an overhead line auxiliary fault analysis device proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of the toolbox of an overhead line auxiliary fault analysis device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the detection rod assembly of an overhead line auxiliary fault analysis device proposed in this utility model;

[0024] Figure 4 This utility model proposes an auxiliary fault analysis device for overhead lines. Figure 2 Enlarged view at point A;

[0025] Figure 5 This is a schematic diagram of the ground wire assembly of an overhead line auxiliary fault analysis device proposed in this utility model;

[0026] Figure 6 This utility model proposes an auxiliary fault analysis device for overhead lines. Figure 5 Enlarged view at point A;

[0027] Figure 7 This is a partially enlarged schematic diagram of the housing component of an overhead line auxiliary fault analysis device proposed in this utility model;

[0028] Legend:

[0029] 1. Tool box; 11. Detector; 2. Detection rod module; 21. Detection rod assembly; 211. First detection rod; 212. First tightening cylinder; 213. First threaded cylinder; 214. Second detection rod; 215. Second tightening cylinder; 216. Second threaded cylinder; 217. Third detection rod; 22. Clamping detection head; 23. Fixing groove; 24. Clamping block; 25. Clamping bolt; 26. First pressing block; 27. First snap connector; 28. First spring; 3. Grounding assembly; 31. Rotating rod; 32. Grounding connector; 33. Placement groove; 34. Second pressing block; 35. Second snap connector; 36. Second spring; 4. Storage assembly; 41. Wire harness reel; 42. Crank handle; 43. Grounding wire harness; 44. Clamping head. Detailed Implementation

[0030] 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.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example 1:

[0034] like Figures 1 to 7As shown, this embodiment provides an overhead line auxiliary fault analysis device, including: a tool box 1, on which a detector 11 is mounted; a detection rod module 2, of which three sets are provided and pass through the inside of the tool box 1, and a clamping detection head 22 is provided on the top of the tool box 1 for clamping the overhead line for detection; a grounding wire assembly 3 is provided on one side of the tool box 1, and a grounding wire connector 32 is provided on one side of the tool box 1 for inserting an underground grounding wire; and a storage assembly 4 is provided on the side of the tool box 1 away from the grounding wire assembly 3.

[0035] In this embodiment, the detection rod module 2 and the ground wire assembly 3 constitute an overhead line auxiliary fault analysis device according to this application.

[0036] It should also be understood that the detector 11 and the clamping detection head 22 are common knowledge in the field. They are only used and not modified. Therefore, the control method and circuit connection will not be described in detail.

[0037] It should be noted that the toolbox 1 integrates the detector 11, the detection rod module 2, the grounding wire assembly 3, and the storage assembly 4 to form a complete fault analysis device. The detection rod module 2 is used to clamp the overhead line and connect it to the detector 11 for detection. The grounding wire assembly 3 provides grounding function to ensure detection safety. The storage assembly 4 is used for storing and organizing the grounding wire bundle.

[0038] In addition, in this embodiment, when the user first reaches the overhead position where fault analysis is required, the user places the toolbox 1 in a suitable position, turns on the power of the detector 11, and moves the second pressing block 34 upward. The second pressing block 34 compresses the second spring 36 downward through the second locking connector 35 on one side inside the toolbox 1 and releases the locking of the rotating rod 31. Then the user rotates the ground wire connector 32 at one end of the rotating rod 31 out, and then rotates the top of the ground wire connector 32. The ground wire connector 32 drills downward into the ground at one end of the rotating rod 31. Then the user cranks the handle 42, and the grounding wire harness 43 extends under the rotation of the wire harness drum 41. The clamping head 44 at one end of the grounding wire harness 43 clamps and connects the top of the ground wire connector 32.

[0039] Specifically, the grounding assembly 3 includes: a rotating rod 31, one end of which is rotatably connected to the inside of the toolbox 1; a grounding connector 32, which is threaded to the other end of the rotating rod 31 and has a tapered head at the bottom; a placement groove 33, which is located inside the toolbox 1 on the side away from the rotating rod 31; a second pressing block 34, which is located on the side of the toolbox 1 near the rotating rod 31; a second locking connector 35, which is located inside the toolbox 1 on the side of the rotating rod 31 and is fixedly connected to the second pressing block 34 on the side near the inside of the toolbox 1; and a second spring 36, which is located inside the toolbox 1 on the side near the second locking connector 35 and is fixedly connected to the bottom of the second locking connector 35 at its top.

[0040] In this embodiment, the design of the rotating rod 31 and the ground wire connector 32 allows the ground wire to be quickly inserted into the ground, achieving stable grounding. The cooperation of the second pressing block 34, the second locking connector 35, and the second spring 36 facilitates the locking and releasing of the ground wire assembly 3, ensuring operational safety.

[0041] Specifically, the storage component 4 includes: a wire harness spool 41, which is disposed on the outer wall of the tool box 1 away from the rotating rod 31; a crank handle 42, which is disposed on one side of the wire harness spool 41; a grounding wire harness 43, which is wound inside the wire harness spool 41; and a clamping head 44, which is disposed at one end of the grounding wire harness 43.

[0042] This design, with the wire harness spool 41 and crank 42 in this way, allows the grounding wire harness 43 to be neatly wound and stored, making it easy to carry and store, and improving the portability of the device.

[0043] Example 2:

[0044] Based on Example 1, the user then rotates the two sets of clamping bolts 25 to release the clamping blocks 24 from the first detection rod 211. The user then pulls the first detection rod 211 out of the toolbox 1 and presses the first pressing block 26. The first snap-fit ​​connector 27 at one end of the first pressing block 26 inside the toolbox 1 compresses the first spring 28 and releases the clamping detection head 22. The user then removes the clamping detection head 22, connects it via wiring, and connects the threaded hole at the bottom of the clamping detection head 22 to the third detection rod 217. On the top thread, rotate the second threaded cylinder 216 to release the lock on the second tightening cylinder 215, pull the third detection rod 217 upward to the appropriate position, then tighten the second threaded cylinder 216, and the second tightening cylinder 215 locks the position of the third detection rod 217. Then rotate the first threaded cylinder 213 to release the lock on the first tightening cylinder 212, pull the second detection rod 214 upward to the appropriate position, then tighten the first threaded cylinder 213, and the first tightening cylinder 212 locks the position of the second detection rod 214. The user then clamps the detection head 22 onto the overhead line to be tested.

[0045] Specifically, the detection rod module 2 includes: a detection rod assembly 21, passing through the inside of the toolbox 1; a clamping detection head 22, located on the top of the toolbox 1 away from the detector 11; a fixing groove 23, located on the top of the toolbox 1 away from the detector 11, with the clamping detection head 22 placed inside the fixing groove 23; two sets of clamping blocks 24, located inside the toolbox 1 and passing through the inside of the toolbox 1, with the upper set moving up and down inside the toolbox 1; two sets of clamping bolts 25, threadedly connected to both sides of the clamping blocks 24; a first pressing block 26, sliding inside the toolbox 1 away from the detector 11; a first snap-fit ​​connector 27, sliding at the bottom of the fixing groove 23, with one end fixedly connected to the side of the first pressing block 26 near the inside of the toolbox 1; and a first spring 28, located inside the toolbox 1 at the bottom of the fixing groove 23, with one end fixedly connected to the end of the first snap-fit ​​connector 27 away from the first pressing block 26.

[0046] In this embodiment, the clamping detection head 22 can firmly clamp the overhead line through the cooperation of the clamping block 24 and the clamping bolt 25. The first pressing block 26, the first locking connector 27 and the first spring 28 make it easy to fix and release the clamping detection head 22, improving the convenience of operation.

[0047] Specifically, the detection rod assembly 21 includes: a first detection rod 211, which passes through the toolbox 1 and is disposed inside the clamping block 24; a first tightening cylinder 212, which is disposed at one end of the first detection rod 211 and has threads on its outer wall; a first threaded cylinder 213, which is disposed at one end of the first detection rod 211 and has its internal threads engaging with the external threads of the first tightening cylinder 212; a second detection rod 214, which extends and retracts inside the first detection rod 211; a second tightening cylinder 215, which is disposed at the end of the second detection rod 214 away from the first detection rod 211 and has threads on its outer wall; a second threaded cylinder 216, which is disposed at one end of the second detection rod 214 and has its internal threads engaging with the external threads of the second tightening cylinder 215; and a third detection rod 217, which extends and retracts inside the second detection rod 214 and has threads at the end away from the second detection rod 214.

[0048] In a preferred embodiment, the first detection rod 211, the second detection rod 214, and the third detection rod 217 are made of epoxy resin, which has good insulation properties, high temperature resistance, high chemical stability, and adaptability to harsh environments. The first tightening cylinder 212 and the second tightening cylinder 215 are made of engineering plastic, which has good insulation and chemical corrosion resistance, is non-conductive, effectively prevents current transmission, and also possesses certain toughness and mechanical strength. The multi-stage telescopic detection rod assembly 21 achieves the telescopic movement of each stage of the detection rod through threaded connections. When extension is needed, the second detection rod 214 is grasped and pulled out, and the second threaded cylinder 216 engages with the thread of the second tightening cylinder 215, allowing the second detection rod 214 to extend from the first detection rod 211. Similarly, the third detection rod 217 can be pulled out from the second detection rod 214 and fixed. When shortening is needed, the threads are loosened and the detection rod is pushed back. The telescopic movement of each stage of the detection rod is achieved through threaded connections, ensuring a firm and reliable connection while facilitating disassembly and maintenance.

[0049] In actual use, when the user reaches the overhead position where fault analysis is required, the user places the toolbox 1 in a suitable position, turns on the power of the detector 11, and moves the second pressing block 34 upward. The second pressing block 34 compresses the second spring 36 downward through the second locking connector 35 on one side inside the toolbox 1, and releases the locking of the rotating rod 31. Then the user rotates out the ground wire connector 32 at one end of the rotating rod 31, and then rotates the top of the ground wire connector 32. The ground wire connector 32 drills downward into the ground at one end of the rotating rod 31. Then the user cranks the handle 42, and the grounding wire harness 43 extends under the rotation of the wire harness drum 41. The clamping head 44 at one end of the grounding wire harness 43 clamps and connects the top of the ground wire connector 32. The user then rotates the two sets of clamping bolts 25 to release the clamping blocks 24 from the first detection rod 211. The user then pulls the first detection rod 211 out of the toolbox 1 and presses the first pressing block 26. The first locking connector 27 at one end of the first pressing block 26 inside the toolbox 1 compresses the first spring 28 and releases the clamping detection head 22. The user then removes the clamping detection head 22, connects it via wiring, and connects the bottom threaded hole of the clamping detection head 22 to the top thread of the third detection rod 217. Rotate the second threaded cylinder 216 to release the lock on the second tightening cylinder 215, pull the third detection rod 217 upward to the appropriate position, then tighten the second threaded cylinder 216, and the second tightening cylinder 215 will lock the position of the third detection rod 217. Then rotate the first threaded cylinder 213 to release the lock on the first tightening cylinder 212, pull the second detection rod 214 upward to the appropriate position, then tighten the first threaded cylinder 213, and the first tightening cylinder 212 will lock the position of the second detection rod 214. The user then clamps the detection head 22 onto the overhead line to be tested.

[0050] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device that can be controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An overhead line auxiliary fault analysis device, characterized by: Includes a toolbox (1), on which a detector (11) is installed; The detection rod module (2) has three sets and passes through the inside of the tool box (1). The clamping detection head (22) is set on the top of the tool box (1) for clamping the overhead line detection. The grounding assembly (3) is located on one side of the toolbox (1), and the grounding connector (32) is located on one side of the toolbox (1) for inserting the grounding wire into the ground. The storage component (4) is located on the side of the toolbox (1) away from the grounding component (3).

2. An overhead line auxiliary fault analysis device according to claim 1, characterized in that: The detection rod module (2) includes: a detection rod assembly (21) that passes through the inside of the toolbox (1); The clamping detection head (22) is positioned on the top of the toolbox (1) on the side away from the detector (11); A fixing groove (23) is provided on the top of the toolbox (1) away from the detector (11), and the detection head (22) is clamped and placed inside the fixing groove (23); Clamping blocks (24) are set in two sets and are set inside the toolbox (1) and pass through the inside of the toolbox (1), and the upper set moves up and down inside the toolbox (1); Two sets of clamping bolts (25) are provided and are threadedly connected to both sides of the clamping block (24); The first pressing block (26) slides inside the toolbox (1) on the side away from the detector (11); The first card connector (27) slides at the bottom of the fixing groove (23), and one end is fixedly connected to the side of the first pressing block (26) near the inside of the tool box (1); The first spring (28) is located inside the toolbox (1) and at the bottom of the fixing groove (23), with one end fixedly connected to the end of the first snap connector (27) away from the first pressing block (26).

3. The overhead line auxiliary fault analysis device according to claim 2, characterized in that: The detection rod assembly (21) includes: a first detection rod (211) that passes through the inside of the toolbox (1) and is disposed inside the clamping block (24); The first tightening cylinder (212) is located at one end of the first detection rod (211) and has threads on its outer wall; The first threaded cylinder (213) is located at one end of the first detection rod (211), and its internal thread engages with the external thread of the first tightening cylinder (212); The second detection rod (214) extends and retracts inside the first detection rod (211); The second tightening cylinder (215) is located at the end of the second detection rod (214) away from the first detection rod (211), and its outer wall is threaded. The second threaded cylinder (216) is located at one end of the second detection rod (214), and its internal thread engages with the external thread of the second tightening cylinder (215); The third detection rod (217) extends and retracts inside the second detection rod (214), and has a threaded end away from the second detection rod (214).

4. The overhead line auxiliary fault analysis device according to claim 1, characterized in that: The grounding assembly (3) includes: a rotating rod (31), one end of which is rotatably connected inside the toolbox (1); The grounding connector (32) is threaded to the other end of the rotating rod (31) and has a tapered head at the bottom; The placement slot (33) is located inside the toolbox (1) on the side away from the rotating rod (31); The second pressing block (34) is located on the side of the toolbox (1) near the rotating rod (31); The second card connector (35) is located inside the tool box (1) on one side of the power-on rotating rod (31) and is fixedly connected to the second pressing block (34) on the side near the inside of the tool box (1); The second spring (36) is located inside the toolbox (1) on the side near the second connector (35), and its top is fixedly connected to the bottom of the second connector (35).

5. The overhead line auxiliary fault analysis device according to claim 1, characterized in that: The storage component (4) includes: a wire harness reel (41) disposed on the outer wall of the toolbox (1) on the side away from the rotating rod (31); A crank handle (42) is located on one side of the wire harness drum (41); The grounding harness (43) is wound inside the harness spool (41); The clamping head (44) is located at one end of the grounding wire bundle (43).

6. An overhead line auxiliary fault analysis device according to claim 2, characterized in that: The clamping detection head (22) has a threaded hole at the bottom that engages with the threaded top of the third detection rod (217), and a snap-fit ​​groove on the inner side that engages with the first snap-fit ​​connector (27).

7. An overhead line auxiliary fault analysis device according to claim 4, characterized in that: A snap-fit ​​groove is provided in the middle of the lower surface of the rotating rod (31) to engage with the second snap-fit ​​connector (35).

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