Electrical equipment insulation strength test equipment

By introducing an elevated frame and connecting components into the electrical equipment insulation strength testing equipment, and utilizing electric telescopic rods and limiting components, the insulation resistance testing instrument can be automatically connected and disconnected from the electrical equipment. This solves the problem of low efficiency in manual operation, improves testing efficiency, and reduces labor intensity.

CN224081747UActive Publication Date: 2026-04-03XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing electrical equipment insulation strength testing, the manual connection and disconnection of insulation resistance testing instruments and equipment is inefficient, resulting in high labor intensity for operators and affecting testing efficiency.

Method used

An electrical equipment insulation strength testing device was designed. It adopts an elevated frame and connecting components, combined with an electric telescopic rod and limiting components, to realize the automatic connection and disconnection of the insulation resistance testing instrument and the electrical equipment, reducing manual operation.

Benefits of technology

By automating the connection and disconnection process, the workload of operators is reduced and the overall efficiency of testing is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses electrical equipment insulation strength testing equipment, which relates to the technical field of electrical equipment testing and comprises a workbench, an elevated frame is horizontally and fixedly mounted above the workbench, and an insulation resistance testing instrument main body is fixedly mounted on the front surface of the elevated frame; the two connecting assemblies are arranged on the two sides of the interior of the elevated frame in a sliding mode, and each connecting assembly comprises a first movable sleeve arranged on one side wall of the elevated frame in a sliding mode; the transverse frame is horizontally and fixedly arranged on the side, facing the interior of the elevated frame, of the first movable sleeve, and an inner batten is fixedly arranged in the length direction of the inner wall of the transverse frame; the second movable sleeve is slidably arranged on the inner strip plate, and an automatic telescopic rod is fixedly arranged in the middle of the bottom of the second movable sleeve; wherein alloy contacts are arranged at the bottom of the automatic telescopic rod, and the positive electrode measuring end and the negative electrode measuring end of the insulation resistance testing instrument main body are fixedly connected with the outer walls of the two alloy contacts respectively. According to the utility model, a user does not need to manually perform the operation, and the overall test efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electrical equipment testing technology, and in particular to an electrical equipment insulation strength testing device. Background Technology

[0002] Electrical equipment is subjected to various overvoltages during operation, such as power frequency overvoltages, lightning overvoltages, and switching overvoltages. Insulation strength testing verifies the equipment's ability to withstand these overvoltage conditions, ensuring safe operation under both normal and abnormal conditions. Currently, insulation resistance testing is commonly used to assess insulation strength, evaluating the quality of the equipment's insulation system by measuring its insulation resistance. During testing, the positive and negative terminals of an insulation resistance tester are connected to the two ends of the equipment's insulation system, and the insulation resistance value is measured. Typically, the insulation resistance value should exceed a certain standard value to ensure safe operation of the electrical equipment.

[0003] After the electrical equipment is manufactured in a unified manner, it needs to be tested one by one. During the testing process, the operator needs to manually connect or disconnect the instruments and electrical equipment. Frequent operation of this operation will lead to a high labor intensity for the operator, and the efficiency of manually connecting or disconnecting is low, which will affect the overall efficiency of the testing work. Utility Model Content

[0004] This invention provides an electrical equipment insulation strength testing device, which solves the existing problems.

[0005] This utility model provides an electrical equipment insulation strength testing device, comprising:

[0006] A workbench is used to place electrical equipment. A raised frame is horizontally fixedly installed on top of the workbench, and the main body of an insulation resistance testing instrument is fixedly installed on the front of the raised frame.

[0007] Two sets of connecting components are slidably installed on both sides inside the raised frame. Each set of connecting components includes:

[0008] The first movable sleeve is slidably set on one side wall of the elevated frame;

[0009] A horizontal frame is fixedly installed on the side of the first movable sleeve facing the inside of the raised frame, and an inner strip is fixedly provided on the inner wall of the horizontal frame in the direction of its extension.

[0010] The second movable sleeve is slidably mounted on the inner strip plate, and an automatic telescopic rod is fixedly provided below the second movable sleeve;

[0011] The automatic telescopic rod has alloy contacts at its bottom, and the positive and negative measuring ends of the insulation resistance testing instrument are fixedly connected to the outer walls of the two alloy contacts, respectively.

[0012] Preferably, a first locking bolt is provided on the side of the first movable sleeve away from the inside of the raised frame, and the first locking bolt is used to limit the first movable sleeve.

[0013] Preferably, a second locking bolt is movably provided at the top of the second movable sleeve, and the second locking bolt is used to limit the movement of the second movable sleeve.

[0014] Preferably, the workbench and the raised frame are connected by multiple vertical columns.

[0015] Preferably, a plurality of downward extension rods are fixedly installed around the bottom of the second movable sleeve, and a fixed height platform is fixedly installed at the bottom of the downward extension rods. The electric telescopic rod is set on the top of the fixed height platform, and the telescopic end of the electric telescopic rod extends to the bottom of the fixed height platform.

[0016] Preferably, the workbench is provided with two sets of limiting components, each set of limiting components including:

[0017] The sliding frame is slidably connected to the outer wall of the worktable, and its sliding direction is the same as that of the second movable sleeve.

[0018] Two protruding seats are fixedly installed at both ends of the top of the sliding frame;

[0019] A strip track is fixedly installed between two protruding seats, and a third sliding sleeve is slidably connected to the strip track;

[0020] A limiting block is fixedly installed inside the third sliding sleeve, and a rubber pad is fixedly installed on the inner wall of the limiting block.

[0021] Preferably, the end of the sliding frame is threadedly connected to a first fixing bolt, and the threaded end of the first fixing bolt is movably connected to the outer wall of the worktable.

[0022] Preferably, the top of the third sliding sleeve is threadedly connected to a second fixing bolt, and the threaded end of the second fixing bolt is movably connected to the top of the strip track.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This invention features a raised frame fixedly installed above the workbench. The main body of the insulation resistance tester is fixedly mounted on the front of the raised frame. Two sets of connecting components are provided on both sides inside the raised frame. The connecting components can adjust the position of the alloy contacts so that they are located at the top of the test end of the electrical equipment. Then, by operating the electric telescopic rod, the alloy contacts can be raised and lowered. When the alloy contacts are in contact with the electrical equipment, the automatic connection between the main body of the insulation resistance tester and the electrical equipment is completed. Conversely, the connection can be disconnected. This eliminates the need for manual operation by the user, reducing the user's labor intensity and improving the overall efficiency of the test. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural diagram of an electrical equipment insulation strength testing device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the horizontal frame of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the electric telescopic rod of this utility model;

[0029] Figure 4 This is a schematic diagram of the limiting component of this utility model;

[0030] Figure 5 This is a schematic diagram of the limiting block of this utility model.

[0031] In the diagram: 1-Workbench, 11-Vertical column, 12-Elevated frame, 13-Main body of insulation resistance testing instrument, 2-Connecting assembly, 21-First movable sleeve, 22-First locking bolt, 23-Horizontal frame, 24-Inner strip plate, 25-Second movable sleeve, 26-Second locking bolt, 27-Lower extension rod, 271-Fixed height platform, 272-Automatic telescopic rod, 273-Alloy contact, 3-Limiting assembly, 31-Sliding frame, 32-First fixing bolt, 33-Protruding seat, 34-Strip track, 35-Third sliding sleeve, 36-Second fixing bolt, 37-Limiting block, 38-Rubber pad. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-5 The present invention provides an electrical equipment insulation strength testing device, including a workbench 1, two sets of connecting components 2 and two sets of limiting components 3.

[0034] A vertical column 11 is fixedly installed on the top of the workbench 1, a support frame 12 is fixedly installed on the top of the vertical column 11, and the main body 13 of the insulation resistance test instrument is fixedly installed on the front of the support frame 12.

[0035] The connecting component 2 is movably connected to the left and right side walls of the raised frame 12. The connecting component 2 is used to connect the electrodes of the insulation resistance test instrument body 13 to the electrical equipment.

[0036] Each connecting assembly includes a first movable sleeve 21 slidably mounted on one side wall of the elevated frame 12. A horizontal frame 23 is fixedly mounted on the side of the first movable sleeve 21 facing the interior of the elevated frame 12. An inner strip 24 is fixedly mounted on the inner wall of the horizontal frame 23 along its extension direction. A second movable sleeve 25 is slidably mounted on the inner strip 24, and an automatic telescopic rod 272 is fixedly mounted below the second movable sleeve 25. Alloy contacts 273 are provided at the bottom of the automatic telescopic rod 272. The positive and negative measuring terminals of the insulation resistance testing instrument body 13 are fixedly connected to the outer walls of the two alloy contacts 273, respectively.

[0037] In this implementation, a first locking bolt 22 is movably provided on the side of the first movable sleeve 21 away from the interior of the raised frame 12, and the first locking bolt 22 is used to limit the first movable sleeve 21. A second locking bolt 26 is movably provided on the top of the second movable sleeve 25, and the second locking bolt 26 is used to limit the second movable sleeve 25.

[0038] Multiple downward extension rods 27 are fixedly installed around the bottom of the second movable sleeve 25. A fixed height platform 271 is fixedly installed at the bottom of the downward extension rod 27. The electric telescopic rod 272 is set on the top of the fixed height platform 271, and the telescopic end of the electric telescopic rod 272 extends to the bottom of the fixed height platform 271.

[0039] In one embodiment, the connecting component 2 includes a first movable sleeve 21, which is slidably connected to the outer wall of the scaffolding frame 12. A first locking bolt 22 is threadedly connected to the side of the first movable sleeve 21, and the threaded end of the first locking bolt 22 is movably connected to the side of the scaffolding frame 12. A horizontal frame 23 is fixedly installed on the side of the first movable sleeve 21 away from the first locking bolt 22. An inner strip plate 24 is fixedly installed on the inner wall of the horizontal frame 23. A second movable sleeve 25 is slidably connected to the outer wall of the inner strip plate 24. A second locking bolt 26 is threadedly connected to the top of the second movable sleeve 25, and the threaded end of the second locking bolt 26 is movably connected to the top of the inner strip plate 24.

[0040] This design is for reference. Figure 2 Loosen the first locking bolt 22, and the first movable sleeve 21 can be slid on the outer wall of the raised frame 12 to adjust the position of the alloy contact 273. Tighten the first locking bolt 22 so that its threaded end is attached to the raised frame 12, thus fixing the front and rear position of the alloy contact 273. Loosen the second locking bolt 26, and the second movable sleeve 25 can be slid on the outer wall of the inner strip plate 24. Then tighten the second locking bolt 26 so that its threaded end is attached to the outer wall of the inner strip plate 24, thus fixing the left and right position of the alloy contact 273. This will cause the alloy contact 273 to be located at the top of the test end of the electrical equipment, which will facilitate the testing work.

[0041] In one embodiment, a lower extension rod 27 is fixedly installed at the bottom of the second movable sleeve 25, a fixed height platform 271 is fixedly installed at the bottom of the lower extension rod 27, an electric telescopic rod 272 is fixedly installed at the top of the fixed height platform 271, the telescopic end of the electric telescopic rod 272 extends to the bottom of the fixed height platform 271 and is fixedly connected to an alloy contact 273, and the positive and negative measuring ends of the insulation resistance test instrument body 13 are fixedly connected to the outer walls of the two alloy contacts 273 respectively.

[0042] It should be noted that before testing, the left and right positions of the limiting block 37 are adjusted by loosening the gap of the first fixing bolt 32, and the front and back positions of the limiting block 37 are adjusted by loosening the gap of the second fixing bolt 36. The position of the limiting block 37 is adjusted so that it can provide limiting support for the electrical equipment. The position of the alloy contact 273 is adjusted by loosening the gap of the first locking bolt 22, and the left and right positions of the alloy contact 273 are adjusted by loosening the gap of the second locking bolt 26, so that the alloy contact 273 is located at the top of the test end of the electrical equipment. During testing, the electrical equipment is inserted into the limiting block 37, and then the electric telescopic rod 272 is extended to make the alloy contact 273 fit and connect to the electrical equipment. Then, the insulation resistance testing instrument body 13 is controlled to work to test the insulation strength of the electrical equipment. After the test is completed, the electric telescopic rod 272 is reset, and then the electrical equipment can be removed.

[0043] The limit component 3 is movably connected to the outer wall of the workbench 1, and the limit component 3 is used to limit the electrical equipment.

[0044] This design is for reference. Figure 3 The electric telescopic rod 272 is electrically connected to the existing switch controller. The extension of the electric telescopic rod 272 can be controlled by the switch controller, which can cause the alloy contact 273 to adhere to the electrical equipment, thus completing the automatic connection between the insulation resistance test instrument body 13 and the electrical equipment. Controlling the retraction of the electric telescopic rod 272 can raise the height of the alloy contact 273, thereby disconnecting the insulation resistance test instrument body 13 from the electrical equipment, increasing the degree of automation of the testing work. This design can improve the overall efficiency of the testing work.

[0045] In one embodiment, the limiting component 3 includes a sliding frame 31, which is movably connected to the outer wall of the workbench 1. A first fixing bolt 32 is threadedly connected to the end of the sliding frame 31, and the threaded end of the first fixing bolt 32 is movably connected to the outer wall of the workbench 1. A protrusion 33 is fixedly installed on the top of the sliding frame 31. A strip track 34 is fixedly installed on the outer wall inside the protrusion 33. A third sliding sleeve 35 is slidably connected to the outer wall of the strip track 34. A second fixing bolt 36 is threadedly connected to the top of the third sliding sleeve 35, and the threaded end of the second fixing bolt 36 is movably connected to the top of the strip track 34. A limiting block 37 is fixedly installed on the side of the third sliding sleeve 35, and a rubber pad 38 is fixedly installed on the inner wall of the limiting block 37.

[0046] This design is for reference. Figure 4 and Figure 5 Loosen the first fixing bolt 32, and the sliding frame 31 can be slid on the workbench 1. Then tighten the first fixing bolt 32 to fix the left and right positions of the limiting block 37. Loosen the second fixing bolt 36, and the third sliding sleeve 35 can be slid on the outer wall of the strip track 34. Tighten the second fixing bolt 36 to fix the front and rear positions of the limiting block 37. By adjusting the position of the limiting block 37, the limiting block 37 can provide limiting support for the electrical equipment. Before testing, the electrical equipment can be plugged into the inner side of the limiting block 37. The design of the rubber pad 38 can provide flexible support for the electrical equipment and ensure the safety of the electrical equipment.

[0047] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electrical equipment insulation strength testing apparatus, characterized by, The utility model relates to an electric resistance testing instrument main body (13) is fixedly installed to the front of the elevated frame (12) that is fixedly installed on the workbench (1) for placing electrical equipment, and two groups of connecting components (2) are slidably arranged in the inside two sides of the elevated frame (12), each connecting component includes: A first movable sleeve (21) is slidably arranged on one side wall of the elevated frame (12); A horizontally arranged frame (23) is fixedly arranged on the side of the first movable sleeve (21) towards the inside of the elevated frame (12), and an inner batten (24) is fixedly arranged on the inner wall of the horizontally arranged frame (23) in the length direction; A second movable sleeve (25) is slidably arranged on the inner batten (24), and an electric telescopic rod (272) is fixedly arranged below the second movable sleeve (25); Wherein, the bottom of the electric telescopic rod (272) is provided with an alloy contact (273), and the positive and negative measuring ends of the electric resistance testing instrument main body (13) are fixedly connected with the outer walls of the two alloy contacts (273) respectively. A first locking bolt (22) is movably arranged on the side of the first movable sleeve (21) away from the inside of the elevated frame (12), and the first locking bolt (22) is used for limiting the first movable sleeve (21). A second locking bolt (26) is movably arranged on the top of the second movable sleeve (25), and the second locking bolt (26) is used for limiting the second movable sleeve (25).

2. An electrical equipment insulation strength testing apparatus as claimed in claim 1, wherein, The workbench (1) and the elevated frame (12) are connected through a plurality of vertical columns (11).

3. An electrical equipment insulation strength testing apparatus as defined in claim 1, wherein, A plurality of lower extension rods (27) are fixedly arranged around the bottom of the second movable sleeve (25), a height fixing table (271) is fixedly arranged on the bottom of the lower extension rod (27), the electric telescopic rod (272) is arranged on the top of the height fixing table (271), and the telescopic end of the electric telescopic rod (272) extends below the bottom of the height fixing table (271).

4. An electrical equipment insulation strength testing apparatus as defined in claim 1, wherein, Two groups of limiting components (3) are arranged on the workbench (1), each limiting component includes:

5. An electrical equipment insulation strength testing apparatus as defined in claim 1, wherein, A sliding frame (31) is slidably connected to the outer wall of the workbench (1), and the sliding direction of the sliding frame (31) is the same as that of the second movable sleeve (25); 6. An electrical equipment insulation strength testing apparatus as defined in claim 1, wherein, Two protruding seats (33) are fixedly arranged on the top of the sliding frame (31) at both ends; A strip-shaped track (34) is fixedly arranged between the two protruding seats (33), and a third sliding sleeve (35) is slidably connected to the strip-shaped track (34); A limiting block (37) is fixedly arranged on the inner side of the third sliding sleeve (35), and a rubber pad (38) is fixedly arranged on the inner wall of the limiting block (37). A first fixing bolt (32) is threadedly connected to the end of the sliding frame (31), and the threaded end of the first fixing bolt (32) is movably connected to the outer wall of the workbench (1). A second fixing bolt (36) is threadedly connected to the top of the third sliding sleeve (35), and the threaded end of the second fixing bolt (36) is movably connected to the top of the strip-shaped track (34).

7. An electrical equipment insulation strength test apparatus as claimed in claim 6, wherein, ​ 8. An electrical equipment insulation strength test apparatus as defined in claim 6, wherein, ​