An insulating oil dielectric strength tester
By introducing an adjustable positioning base and a forward/reverse motor disassembly mechanism into the insulating oil dielectric strength tester, the problem of difficult electrode head disassembly is solved, enabling convenient cleaning of the electrode head and flexible spacing adjustment, thus improving the practicality and operational efficiency of the tester.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EZHOU FUJING ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-07
AI Technical Summary
In existing insulating oil dielectric strength testers, the electrode head is tightly connected to the oil cup, making it difficult to disassemble and resulting in a cumbersome and inefficient cleaning and maintenance process.
A disassembly and assembly mechanism including an adjustable positioning seat and a forward and reverse motor was designed. Through the linkage of the electric push rod and the connecting rod, the electrode head can be detached from the oil cup for easy cleaning. The electrode head spacing can be adjusted by the positioning pin to adapt to different testing requirements.
It enables convenient disassembly and cleaning of the electrode heads, improving cleaning and maintenance efficiency, and allows for flexible adjustment of the electrode head spacing to meet different testing requirements, thus enhancing the practicality and convenience of the device.
Smart Images

Figure CN224471787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrical strength testing equipment, and in particular to an insulating oil dielectric strength tester. Background Technology
[0002] An insulating oil dielectric strength tester is a laboratory device specifically designed to test the dielectric strength of insulating oil. It measures the insulating capacity of the oil under an electric field by applying a gradually increasing voltage to the oil sample, thereby determining whether it meets the safety requirements for the operation of power equipment, and ensuring the stable operation of the power system and the safety of the equipment.
[0003] In existing insulating oil dielectric strength testers, the electrode head is installed inside the oil cup for testing. However, after use, the electrode head is tightly connected to the oil cup, making it difficult to disassemble and clean. This results in a cumbersome and inefficient cleaning and maintenance process, which urgently needs technical optimization and improvement. Utility Model Content
[0004] One objective of this invention is to provide an insulating oil dielectric strength tester. This invention addresses the problem mentioned in the background that in existing insulating oil dielectric strength tester designs, the electrode head is installed inside the oil cup for testing, but after use, the electrode head is tightly connected to the oil cup, making it difficult to disassemble and clean, resulting in a cumbersome and inefficient cleaning and maintenance process, which urgently requires technical optimization and improvement.
[0005] An insulating oil dielectric strength tester according to an embodiment of the present invention includes:
[0006] The testing instrument assembly includes a housing, on the top of which an electrical strength testing assembly is mounted, and high voltage generators are symmetrically arranged on one side of the top of the housing;
[0007] The assembly / disassembly mechanism includes an adjustable positioning seat for fitting onto the outside of the electrode head in the electrical strength testing assembly and a forward / reverse motor inside the housing. The output end of the forward / reverse motor is fixedly equipped with a lever, and both ends of the top of the lever are equipped with fixed seats. The top of the fixed seats is fixedly equipped with an electric push rod, the output end of the electric push rod is fixedly equipped with a push block, and the top of the electric push rod is fixedly equipped with a rotating seat. A first connecting rod is rotatably connected between the adjustable positioning seat and the push block, and a second connecting rod is rotatably connected between the adjustable positioning seat and the rotating seat.
[0008] Preferably, a protective cover is rotatably provided on one side of the top of the enclosure, and a control console is rotatably provided at the front end of the enclosure.
[0009] Preferably, the electrical strength testing assembly includes an oil cup and an electrode head, the electrode head being placed inside the oil cup, and a connecting sleeve being engaged between the electrode head and the output end of the high voltage generator.
[0010] Preferably, a sealing ring is fixedly provided between the oil cup and the electrode head.
[0011] Preferably, the bottom of the fixed base is provided with a groove for sliding the lever.
[0012] Preferably, a third link is rotatably provided between the push block and the second link.
[0013] Preferably, the electrode head and the adjustable positioning seat are fixedly connected by a positioning pin.
[0014] The beneficial effects of this utility model are:
[0015] This utility model effectively avoids the problem of the electrode head being tightly connected to the oil cup and difficult to disassemble for cleaning by setting up a disassembly and assembly mechanism. During the process, the push block is pulled down by driving the electric push rod, so that the adjustable positioning seat is pushed outward under the connection of the first link, the second link and the third link between the rotating seat and the push block, so that the electrode head is separated from the inside of the oil cup. Then the oil cup can be removed for separate cleaning, and the independent electrode head can also be cleaned. Therefore, the inconvenience caused by manual disassembly can be avoided.
[0016] This invention features an adjustable positioning base and a forward / reverse motor. The electrode heads are fixed to the adjustable positioning base by positioning pins. The distance between the two electrode heads can be changed by adjusting the positioning pins, facilitating electrical strength testing according to different needs. Furthermore, by driving the forward / reverse motor, the lever can slide relative to the bottom of the fixed base in a groove, which can also adjust the distance between the two electrode heads. At the same time, it is also convenient to remove the electrode heads from the inside of the oil cup, thus effectively improving the practicality and convenience of the device. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a three-dimensional structural diagram of one side of an insulating oil dielectric strength tester proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of an insulating oil dielectric strength tester proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the rotating base structure of an insulating oil dielectric strength tester proposed in this utility model;
[0021] Figure 4This is a schematic diagram of the oil cup structure of an insulating oil dielectric strength tester proposed in this utility model;
[0022] In the diagram: 1. Tester assembly; 101. Housing; 102. Control console; 103. Protective cover; 2. Electrical strength test assembly; 201. Oil cup; 202. Electrode head; 203. Sealing ring; 204. Connecting sleeve; 205. High voltage generator; 3. Disassembly and assembly mechanism; 301. Adjustable positioning seat; 302. Forward and reverse motor; 303. Lever; 304. Fixed seat; 305. Slide groove; 306. Electric push rod; 307. Push block; 308. Rotating seat; 309. First connecting rod; 310. Second connecting rod; 311. Third connecting rod. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0024] refer to Figure 1-4 An insulating oil dielectric strength tester, comprising:
[0025] The tester assembly 1 includes a housing 101. An electrical strength test assembly 2 is installed on the top of the housing 101. The electrical strength test assembly 2 includes an oil cup 201 and an electrode head 202. The electrode head 202 is placed inside the oil cup 201. A connecting sleeve 204 is engaged between the electrode head 202 and the output end of the high voltage generator 205 to ensure the stability of the electrical connection. The high voltage generator 205 is symmetrically arranged on one side of the top of the housing 101.
[0026] The disassembly / assembly mechanism 3 includes an adjustable positioning seat 301 for fitting onto the outside of the electrode head 202 in the electrical strength testing assembly 2, and a forward / reverse motor 302 inside the housing 101. A lever 303 is fixedly mounted on the output end of the forward / reverse motor 302. Both ends of the lever 303 are equipped with fixing seats 304. The distance between the two electrode heads can be changed by adjusting the positioning pins, facilitating electrical strength testing according to different needs. Furthermore, by driving the forward / reverse motor, the lever can slide relative to the bottom of the fixing seat in a groove, thus adjusting the distance between the two electrode heads and facilitating the removal of the electrode heads from the oil cup. The fixing seat 304... An electric push rod 306 is fixedly installed at the top, and a push block 307 is fixedly installed at the output end of the electric push rod 306. A rotating seat 308 is fixedly installed at the top of the electric push rod 306. A first connecting rod 309 is rotatably connected between the adjustable positioning seat 301 and the push block 307, and a second connecting rod 310 is rotatably connected between the adjustable positioning seat 301 and the rotating seat 308. By driving the electric push rod to pull the push block downward, the adjustable positioning seat is pushed outward under the connection of the first connecting rod, the second connecting rod and the third connecting rod between the rotating seat and the push block, so that the electrode head is disengaged from the inside of the oil cup. Then the oil cup can be removed for separate cleaning, and the independent electrode head can also be cleaned.
[0027] Example 1: A protective cover 103 is rotatably installed on one side of the top of the housing 101, and a control console 102 is rotatably installed at the front end of the housing 101 for easy storage and protection of the control console. A sealing ring 203 is fixedly installed between the oil cup 201 and the electrode head 202 to increase the sealing of the connection between the electrode head and the oil cup.
[0028] Example 2: The bottom of the fixed base 304 is provided with a sliding groove 305 for sliding the lever 303. A third connecting rod 311 is rotatably arranged between the push block 307 and the second connecting rod 310. The electrode head 202 and the adjustable positioning seat 301 are fixedly arranged by a positioning pin. The electrode head is fixed to the adjustable positioning seat by the positioning pin. The distance between the two electrode heads can be changed by adjusting the positioning pin.
[0029] Working principle: The electrical strength testing component 2 in the tester assembly 1 performs the test through an oil cup 201 and a built-in electrode head 202. The electrode head 202 is connected to the output terminal of the high voltage generator 205 through a connecting sleeve 204, ensuring the stability of the electrical connection. During the test, the electrode head 202 is placed inside the oil cup 201, and the sealing ring 203 increases the sealing between the electrode head and the oil cup. The disassembly and assembly mechanism 3 includes an adjustable positioning seat 301, a forward and reverse motor 302, a lever 303 and its fixing seat 304. By adjusting the positioning pin, the distance between the two electrode heads can be changed to meet different testing requirements. The forward and reverse motor 302 drives the lever 303 to slide in the slide groove 305, thereby adjusting the distance between the electrode heads and facilitating the testing. The design of the protective cover 103 and the control console 102 facilitates operation and protection during electrode head assembly and disassembly. The electrode head 202 is fixed to the adjustable positioning seat 301 by a positioning pin, further optimizing the adjustment and fixation of the electrode head. During electrode head assembly and disassembly, the electric push rod 306 drives the push block 307 to move downward. Through the linkage of the first connecting rod 309, the second connecting rod 310, and the third connecting rod 311, the adjustable positioning seat 301 is pushed outward, thereby detaching the electrode head from the oil cup. In this way, the user can easily remove the oil cup for cleaning and also clean the electrode head independently. In summary, this insulating oil dielectric strength tester achieves efficient and convenient insulating oil dielectric strength testing through precise electrical connections and a flexible assembly and disassembly mechanism.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An insulating oil dielectric strength tester, characterized in that, include: The tester assembly (1) includes a housing (101), on the top of which an electrical strength test assembly (2) is installed, and on one side of the top of the housing (101) a high voltage generator (205) is symmetrically arranged. The disassembly and assembly mechanism (3) includes an adjustable positioning seat (301) for fitting onto the outside of the electrode head (202) in the electrical strength testing assembly (2) and a forward and reverse motor (302) inside the housing (101). The output end of the forward and reverse motor (302) is fixedly provided with a lever (303). Both ends of the top of the lever (303) are provided with fixed seats (304). The top of the fixed seat (304) is fixedly provided with an electric push rod (306). The output end of the electric push rod (306) is fixedly provided with a push block (307). The top of the electric push rod (306) is fixedly provided with a rotating seat (308). A first connecting rod (309) is rotatably provided between the adjustable positioning seat (301) and the push block (307). A second connecting rod (310) is rotatably provided between the adjustable positioning seat (301) and the rotating seat (308).
2. The insulating oil dielectric strength tester according to claim 1, characterized in that, A protective cover (103) is rotatably provided on one side of the top of the box (101), and a control console (102) is rotatably provided at the front end of the box (101).
3. The insulating oil dielectric strength tester according to claim 1, characterized in that, The electrical strength testing assembly (2) includes an oil cup (201) and an electrode head (202). The electrode head (202) is placed inside the oil cup (201), and a connecting sleeve (204) is engaged between the electrode head (202) and the output end of the high voltage generator (205).
4. The insulating oil dielectric strength tester according to claim 3, characterized in that, A sealing ring (203) is fixedly provided between the oil cup (201) and the electrode head (202).
5. The insulating oil dielectric strength tester according to claim 1, characterized in that, The bottom of the fixed base (304) is provided with a groove (305) for sliding the lever (303).
6. The insulating oil dielectric strength tester according to claim 1, characterized in that, A third link (311) is rotatably connected between the push block (307) and the second link (310).
7. The insulating oil dielectric strength tester according to claim 1, characterized in that, The electrode head (202) and the adjustable positioning seat (301) are fixedly connected by a positioning pin.