An insulation resistance measuring tool for suspension insulators

Abstract

This utility model discloses an insulation resistance measuring tool for suspension insulators, belonging to the field of suspension insulator testing technology. The tool includes an insulation resistance meter, an insulating support plate, an insulating telescopic rod, and two hook-shaped connectors. During measurement, the two wires of the insulation resistance meter are electrically connected to the two hook-shaped connectors, with the hook ends of the connectors connecting to the two ends of the insulating sheet to be tested on the suspension insulator. Workers only need to stand on the ground and manually lift the insulating telescopic rod to easily hook the two hook-shaped connectors onto the two ends of the suspension insulator, thus measuring the insulation resistance. This allows workers to quickly complete the insulation resistance measurement of suspension insulators, saving significant time spent climbing the pole and disassembling and restoring the insulator, improving work efficiency, and enabling more efficient power work.

Description

Technical Field

[0001] This utility model relates to the field of suspension insulator testing technology, specifically to an insulation resistance measuring tool for suspension insulators. Background Technology

[0002] In modern railway power systems, suspension insulators are key components of overhead lines, and their insulation performance directly affects the safe and stable operation of the power supply system. By supporting live conductors and insulating them from the ground, suspension insulators prevent current leakage and flashover accidents, playing a vital role in ensuring the continuity and reliability of railway transportation.

[0003] However, in current railway power production practices, there is insufficient emphasis on the daily maintenance of suspension insulators. Due to the lack of a systematic and standardized maintenance process, dirt easily accumulates on the surface of suspension insulators. Coupled with long-term exposure to atmospheric conditions, temperature changes, and mechanical stress, this easily leads to a decline in insulation performance or even insulation failure, thus creating safety hazards. In emergency situations, accurately and quickly identifying the cause of a tripping fault on an overhead line and restoring power supply is crucial. However, for line tripping caused by internal insulation damage to suspension insulators, the current common method is for workers to climb the pole and remove the insulator from the overhead line, then use a professional insulation resistance tester to measure it. While this method can theoretically accurately obtain the insulation resistance value of the insulator, it has many drawbacks in practice, seriously affecting the efficiency of power line fault repair.

[0004] For a long overhead power line, there are often a large number of insulators installed. When it is necessary to measure the insulation resistance of each insulator individually, workers must repeatedly climb poles and dismantle insulators. Each pole climb requires time for safety preparation, such as putting on safety equipment and climbing the pole. Dismantling and installing insulators requires skilled techniques and considerable time. In addition, after the measurement is completed, the insulators must be reinstalled in their original positions and necessary inspections and adjustments must be made to ensure the normal operation of the line. This series of cumbersome procedures makes the entire measurement process extremely time-consuming, seriously delaying the emergency repair progress of power line faults.

[0005] Therefore, there is an urgent need for a tool that can quickly and conveniently test whether the insulation resistance of suspension insulators is good, in order to overcome the shortcomings of existing technologies and meet the actual needs of railway power production for efficient insulator testing and rapid power restoration. Summary of the Invention

[0006] The purpose of this invention is to provide an insulation resistance measuring tool for suspension insulators, so as to overcome the problem of low detection efficiency caused by the cumbersome operation of traditional detection methods in the prior art.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] An insulation resistance measuring tool for suspension insulators includes an insulation resistance measuring meter, an insulation support plate, an insulation telescopic rod, and two barbed connectors. The upper part of the insulation support plate is provided with a fixing component with adjustable horizontal spacing. The two barbed connectors are detachably connected to the insulation support plate through the fixing component. The lower part of the insulation support plate is detachably connected to the insulation telescopic rod.

[0009] During measurement, the two wires of the insulation resistance meter are electrically connected to two barbed connectors, and the barbed ends of the barbed connectors are connected to the two ends of the insulation sheet to be tested on the suspension insulator.

[0010] A further improvement of this utility model is that it also includes a fastener, and the adjustable horizontal spacing fixing component specifically comprises:

[0011] A first screw hole is provided at the non-barbed end of the barbed connector, and several second screw holes are provided on the upper part of the insulating support plate.

[0012] During measurement, the first and second screw holes are fixed at a suitable horizontal distance using fasteners.

[0013] A further improvement of this utility model is that the fastener is one of an external hexagonal bolt, an internal hexagonal bolt, and a square head bolt.

[0014] The further improvement of this utility model is that: the length of the insulating support plate is 400mm, there are 4 second screw holes, the distance from the wide side of the insulating support plate to the center of the adjacent second screw hole is 50mm, and the distance between the centers of the adjacent second screw holes is 100mm.

[0015] A further improvement of this utility model is that it also includes a fastener, and the adjustable horizontal spacing fixing component specifically comprises:

[0016] A first screw hole is provided at the non-barbed end of the barbed connector, and a square opening is provided at the top of the insulating support plate. The length of the suspension insulator to be tested is less than the length of the square opening and less than the length of the insulating support plate.

[0017] During measurement, the first screw hole and the square opening are fixed at a suitable horizontal spacing using fasteners.

[0018] A further improvement of this utility model is that the fastener is a wing bolt.

[0019] A further improvement of this utility model is that the length of the insulating support plate is 400mm and the length of the square opening is 300mm.

[0020] A further improvement of this utility model is that the insulating telescopic rod includes at least two rod sections, which are connected by a threaded connection or a pressure telescopic spring connection.

[0021] A further improvement of this utility model is that the insulating telescopic rod is made of glass fiber.

[0022] A further improvement of this utility model is that the length of the insulating telescopic rod is 11 to 13 meters.

[0023] Compared with the prior art, the positive and progressive effects of this utility model are as follows:

[0024] This utility model provides an insulation resistance measuring tool for suspension insulators, comprising an insulation resistance meter, an insulating support plate, an insulating telescopic rod, and two hook-type connectors. During measurement, the two wires of the insulation resistance meter are electrically connected to the two hook-type connectors, with the hook ends of the connectors connecting to the two ends of the insulating sheet to be tested on the suspension insulator. Workers only need to stand on the ground and manually lift the insulating telescopic rod to easily hook the two hook-type connectors onto the two ends of the suspension insulator, thus measuring the insulation resistance. This allows workers to quickly complete the insulation resistance measurement of suspension insulators, saving significant time spent climbing the pole and disassembling and restoring the insulator, improving work efficiency, and enabling more efficient advancement of power work. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0026] Figure 1 This is a schematic diagram of the insulation resistance measuring tool for suspension insulators according to the present invention;

[0027] Figure 2 This is a schematic diagram of the connection of two insulating sheets in Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the connection of an insulating sheet in Embodiment 1 of this utility model.

[0029] Among them, 1 is a hook-type connector; 1-1 is the first screw hole; 2 is an insulating support plate; 2-1 is the second screw hole; 3 is an insulating telescopic rod; 4 is an insulation resistance meter; 4-1 is a conductor; 5 is a suspension insulator; and 5-1 is the insulating sheet to be tested. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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 on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings. The description is intended to explain the present invention and not to limit it.

[0037] See Figure 1 An insulation resistance measuring tool for suspension insulators includes an insulation resistance measuring meter 4, an insulation support plate 2, an insulation telescopic rod 3, and two barbed connectors 1. The upper part of the insulation support plate 2 is provided with a fixing component with adjustable horizontal spacing. The two barbed connectors 1 are detachably connected to the insulation support plate 2 through the fixing component. The lower part of the insulation support plate 2 is detachably connected to the insulation telescopic rod 3.

[0038] During measurement, the two wires 4-1 of the insulation resistance meter 4 are electrically connected to two barbed connectors 1 respectively. The barbed ends of the barbed connectors 1 are connected to the two ends of the insulation sheet 5-1 to be tested of the suspension insulator 5.

[0039] This utility model provides an insulation resistance measuring tool for suspension insulators, comprising an insulation resistance meter, an insulating support plate, an insulating telescopic rod, and two hook-type connectors. During measurement, the two wires of the insulation resistance meter are electrically connected to the two hook-type connectors, with the hook ends of the connectors connecting to the two ends of the insulating sheet to be tested on the suspension insulator. Workers only need to stand on the ground and manually lift the insulating telescopic rod to easily hook the two hook-type connectors onto the two ends of the suspension insulator, thus measuring the insulation resistance. This allows workers to quickly complete the insulation resistance measurement of suspension insulators, saving significant time spent climbing the pole and disassembling and restoring the insulator, improving work efficiency, and enabling more efficient advancement of power work.

[0040] Specifically, it also includes fasteners, and the horizontally adjustable fixing components are specifically:

[0041] A first screw hole 1-1 is provided at the non-barbed end of the barbed connector 1, and several second screw holes 2-1 are provided on the upper part of the insulating support plate 2.

[0042] During measurement, the first screw hole 1-1 and the second screw hole 2-1 are fixed at a suitable horizontal distance using fasteners.

[0043] Specifically, the fastener is one of the following: hexagonal bolt, socket head cap screw, and square head bolt.

[0044] Specifically, the length of the insulating support plate 2 is 400mm, there are 4 second screw holes 2-1, the distance from the wide side of the insulating support plate 2 to the center of the adjacent second screw hole 2-1 is 50mm, and the distance between the centers of the adjacent second screw holes 2-1 is 100mm.

[0045] Specifically, it also includes fasteners, and the horizontally adjustable fixing components are specifically:

[0046] A first screw hole 1-1 is provided at the non-barbed end of the barbed connector 1, and a square opening is provided on the upper part of the insulating support plate 2. The length of the suspension insulator 5 to be tested is less than the length of the square opening and less than the length of the insulating support plate 2.

[0047] During measurement, the first screw hole 1-1 and the square opening are fixed at a suitable horizontal spacing using fasteners.

[0048] The use of square openings with horizontal spacing can accommodate various types of suspension insulators, providing greater flexibility in spacing adjustment.

[0049] Specifically, the fastener is a wing bolt.

[0050] Specifically, the length of the insulating support plate 2 is 400mm, and the length of the square opening is 300mm.

[0051] Specifically, the insulating telescopic rod 3 includes at least two rod sections, which are connected by a threaded connection or a pressure telescopic spring connection.

[0052] Specifically, the insulating telescopic rod 3 is made of fiberglass.

[0053] Specifically, the length of the insulated telescopic rod 3 is 11 to 13 meters.

[0054] Example 1

[0055] An insulation resistance measuring tool for suspension insulators includes an insulation resistance meter 4, an insulation support plate 2, an insulation telescopic rod 3, and two barbed connectors 1. The upper part of the insulation support plate 2 is provided with a horizontally adjustable fixing assembly. The two barbed connectors 1 are detachably connected to the insulation support plate 2 via the fixing assembly. The lower part of the insulation support plate 2 is detachably connected to the insulation telescopic rod 3. Fasteners are also included. The horizontally adjustable fixing assembly specifically comprises: a first screw hole 1-1 at the non-barbed end of the barbed connector 1, and several second screw holes 2-1 at the upper part of the insulation support plate 2. The insulation support plate 2 is 400mm long, and there are four second screw holes 2-1. The distance from the wide edge of the insulation support plate 2 to the center of adjacent second screw holes 2-1 is 50mm, and the center distance between adjacent second screw holes 2-1 is 100mm.

[0056] During measurement, the two wires 4-1 of the insulation resistance meter 4 are electrically connected to two barbed connectors 1 respectively. The barbed ends of the barbed connectors 1 are connected to the two ends of the insulation sheet 5-1 to be tested of the suspension insulator 5. The first screw hole 1-1 and the second screw hole 2-1 are fixed at a suitable horizontal spacing by external hexagonal bolts.

[0057] The measurement method is as follows: Taking a suspension insulator 5 on a 10kV voltage line as an example, the suspension insulator 5 to be measured is model XP-70. This model of suspension insulator 5 usually includes two insulating sheets. First, the suspension insulator 5 is tested as a whole, that is, the insulation resistance of the two insulating sheets is measured to see if it meets the insulation strength requirements. See [link to relevant documentation]. Figure 2 After selecting a suitable distance between the second screw hole 2-1 and fixing the barbed connector 1 through the first screw hole 1-1, use the handheld insulating telescopic rod 3 to place the barbed connector 1 at the left end of the first insulating sheet and the right end of the second insulating sheet respectively, and perform measurements. If the measurement results meet the insulation strength requirements, the suspension insulator 5 is in normal condition; if the measurement results do not meet the insulation strength requirements, test both insulating sheets separately, see [reference missing]. Figure 3 Select a suitable distance for the second screw hole 2-1. After fixing the barbed connector 1 through the first screw hole 1-1, use the handheld insulating telescopic rod 3 to place the barbed connector 1 at the left and right ends of the first insulating sheet and take measurements. If the measurement results meet the insulation strength requirements, the first insulating sheet is in normal condition. Then, use the handheld insulating telescopic rod 3 to place the barbed connector 1 at the left and right ends of the second insulating sheet and take measurements to obtain the measurement results.

[0058] Finally, it should be noted that the embodiments listed above are merely one or more specific manifestations of the technical solution of this utility model. Their purpose is to clearly illustrate the concept, principle, and application of this utility model through specific examples, and is by no means intended to limit the scope of protection of this utility model to these specific embodiments. In fact, the true value of this utility model lies in its proposed technical ideas and innovations, rather than its manifestations or implementation methods.

[0059] For those skilled in the art, after thoroughly reading and understanding the technical solution of this utility model, they are fully capable of making various changes, modifications, or equivalent substitutions to the specific embodiments of the utility model based on their own professional knowledge and skills. These changes may include, but are not limited to: adjusting the range of technical parameters, optimizing the algorithm flow to improve efficiency, and replacing some technical components to achieve better compatibility or reduce costs. As long as these modified technical solutions substantially retain the technical features claimed by the original utility model, that is, they can still achieve the core functions and effects of this utility model, then these changes should be considered to fall within the scope of protection of the pending claims of this utility model.

[0060] Furthermore, with the continuous progress and development of technology, new technical means and methods are constantly emerging, which provides ample space for the further improvement and perfection of this utility model. Therefore, the scope of protection of this utility model should also include reasonable and foresightful improvements and extensions based on existing technology. As long as these improvements and extensions do not deviate from the basic principles and core concept of this utility model, they should be regarded as equivalents of this utility model and are equally protected by patent rights.

Claims

1. A tool for measuring the insulation resistance of suspension insulators, characterized in that, The device includes an insulation resistance meter (4), an insulation support plate (2), an insulation telescopic rod (3), and two barbed connectors (1). The upper part of the insulation support plate (2) is provided with a fixing component with adjustable horizontal spacing. The two barbed connectors (1) are detachably connected to the insulation support plate (2) through the fixing component. The lower part of the insulation support plate (2) is detachably connected to the insulation telescopic rod (3). During measurement, the two wires (4-1) of the insulation resistance meter (4) are electrically connected to two barbed connectors (1), and the barbed ends of the barbed connectors (1) are connected to the two ends of the insulation sheet (5-1) to be tested of the suspension insulator (5).

2. The insulation resistance measuring tool for suspension insulators according to claim 1, characterized in that, It also includes fasteners, specifically the horizontally adjustable fixing components: A first screw hole (1-1) is provided at the non-barbed end of the barbed connector (1), and several second screw holes (2-1) are provided on the upper part of the insulating support plate (2). During measurement, the first screw hole (1-1) and the second screw hole (2-1) are fixed at a suitable horizontal distance using fasteners.

3. The insulation resistance measuring tool for suspension insulators according to claim 2, characterized in that, The fastener is one of the following: external hex bolt, internal hex bolt, and square head bolt.

4. The insulation resistance measuring tool for suspension insulators according to claim 2, characterized in that, The length of the insulating support plate (2) is 400mm, and there are 4 second screw holes (2-1). The distance between the wide side of the insulating support plate (2) and the center of the adjacent second screw hole (2-1) is 50mm, and the distance between the centers of the adjacent second screw holes (2-1) is 100mm.

5. The insulation resistance measuring tool for suspension insulators according to claim 1, characterized in that, It also includes fasteners, specifically the horizontally adjustable fixing components: A first screw hole (1-1) is provided at the non-barbed end of the barbed connector (1), and a square opening is provided at the upper part of the insulating support plate (2). The length of the suspension insulator (5) to be tested is less than the length of the square opening and less than the length of the insulating support plate (2). During measurement, the first screw hole (1-1) and the square opening are fixed at a suitable horizontal spacing using fasteners.

6. The insulation resistance measuring tool for suspension insulators according to claim 5, characterized in that, The fastener is a wing bolt.

7. The insulation resistance measuring tool for suspension insulators according to claim 5, characterized in that, The length of the insulating support plate (2) is 400mm, and the length of the square opening is 300mm.

8. The insulation resistance measuring tool for suspension insulators according to claim 1, characterized in that, The insulated telescopic rod (3) includes at least two rod sections, which are connected by a threaded connection or a pressure telescopic spring connection.

9. The insulation resistance measuring tool for suspension insulators according to claim 1, characterized in that, The insulating telescopic rod (3) is made of glass fiber.

10. The insulation resistance measuring tool for suspension insulators according to claim 1, characterized in that, The length of the insulated telescopic pole (3) is 11 to 13 meters.

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