A high-voltage testing machine that is easy to test

Abstract

This utility model relates to the field of high-voltage testing machine technology, specifically a high-voltage testing machine for easy testing: it includes a workbench, a high-voltage testing machine body mounted on the surface of the workbench, a support base fixedly connected to one side of the workbench, a testing platform fixedly connected to the surface of the support base, a transparent protective cover fixedly connected to the surface of the support base, a high-voltage connection hole on the surface of the high-voltage testing machine body, a grounding wire positioning hole on the upper surface of the high-voltage testing machine body, and an adjustment mechanism on the surface of the workbench. The lifting method adopted in this utility model, compared to the gear and rack lifting method, uses a first motor, a first lead screw, a moving rod, an adjusting rod, a guide rod, and a lifting plate to drive the first testing head to slide and rise, reducing the slight deviations generated during the gear and rack lifting process, thereby ensuring the measurement accuracy of the high-voltage testing machine.

Description

Technical Field

[0001] This utility model relates to the field of high voltage testing machine technology, specifically a high voltage testing machine that is easy to use for testing. Background Technology

[0002] A high-voltage tester (electrical insulation strength tester) is used to test the withstand voltage capability of electrical insulation materials. It simulates overvoltage conditions by applying a specified AC / DC high voltage between the live parts and the casing. The test voltage is typically twice the operating voltage plus 1000V, and is increased to the set value (e.g., 5kV) within 5 seconds according to IEC 61010 standards. After stabilizing the voltage for 5 seconds, the leakage current is measured. If it exceeds the threshold, the insulation is deemed unqualified. After the test, the voltage must be gradually reduced to zero to ensure operational safety. Key indicators include withstand voltage, insulation resistance, and leakage current to prevent electric shock accidents caused by insulation breakdown.

[0003] Chinese utility model patent application number CN201921352737.4 describes a high-voltage testing machine. This machine uses a self-locking motor and a gear rack to adjust the height. Utilizing a spring, motor locking mechanism, and gravity, it effectively locks and secures the object being tested. The entire testing process only requires a person to press the forward and reverse buttons of the self-locking motor, eliminating the need for manual handling of the test rod and greatly improving worker safety. However, the gears and racks used in the lifting mechanism cause slight deviations in the lifting position due to variations in gear and rack clearances, making it difficult to guarantee consistency in multiple tests and reducing the measurement accuracy of the high-voltage testing machine. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage testing machine that is easy to test, in order to solve the problem mentioned in the background art that the use of gears and racks in the lifting process leads to slight deviations in the lifting position each time due to different gear and rack clearances, making it difficult to ensure the consistency of multiple test conditions and reducing the measurement accuracy of the high-voltage testing machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage testing machine that facilitates testing, comprising a workbench, a high-voltage testing machine body disposed on the surface of the workbench, a support base fixedly connected to one side of the workbench, a testing platform fixedly connected to the surface of the support base, a transparent protective cover fixedly connected to the surface of the support base, a high-voltage connection hole disposed on the surface of the high-voltage testing machine body, a grounding wire positioning hole disposed on the upper surface of the high-voltage testing machine body, an adjustment mechanism disposed on the surface of the workbench, the adjustment mechanism comprising a support rod fixedly connected to the surface of the workbench, and a first motor fixedly connected to the surface of the support rod. A first lead screw is fixedly connected to the output shaft of the first motor. A moving rod is threadedly connected to the surface of the first lead screw. An adjusting rod is rotatably connected to the surface of the moving rod. A guide rod is fixedly connected to the surface of the support base. A lifting plate is slidably connected to the surface of the guide rod. The end of the adjusting rod away from the moving rod is rotatably connected to the bottom of the lifting plate. A connecting rod is fixedly connected to the surface of the lifting plate. A connecting column is fixedly connected to the bottom of the connecting rod. A first test head is fixedly connected to the bottom of the connecting column. A spring is fixedly connected to the surface of the test platform. A second test head is fixedly connected to the top of the spring. The second test head is slidably connected to the surface of the test platform.

[0006] Preferably, a push-out mechanism is provided on the surface of the support base. The push-out mechanism includes a support block, which is fixedly connected to the surface of the worktable. A second motor is fixedly connected to the surface of the support block. A second lead screw is fixedly connected to the output shaft of the second motor. A square nut is threaded onto the surface of the second lead screw. A push-out rod is fixedly connected to the surface of the square nut.

[0007] Preferably, the first motor drives the first lead screw to rotate on the surface of the support rod via the output shaft. A threaded hole is provided on the surface of the moving rod, and the first lead screw is threadedly connected to the threaded hole of the moving rod. The first lead screw drives the moving rod to slide on the surface of the worktable by rotating.

[0008] Preferably, there are two sets of guide rods, and guide holes are provided on the surface of the lifting plate. The lifting plate slides and rises and falls on the surface of the guide rod through the guide holes. During the sliding process, the moving rod drives the lifting plate to slide and rise and fall on the guide rod through the adjusting rod.

[0009] Preferably, the connecting rod is L-shaped, and the lifting plate drives the connecting column and the first test head to rise and fall through the connecting rod. A guide hole is provided on the surface of the test platform, and the second test head slides and rises and falls on the guide hole of the test platform. The spring force acts on the second test head.

[0010] Preferably, the second motor drives the second lead screw to rotate on the surface of the support block via its output shaft, and the second lead screw drives the square nut to slide on the surface of the support base via rotation.

[0011] Preferably, the square nut drives the push rod to slide synchronously, the push rod is in a U-shape, and the bottom of the push rod is higher than the top of the second test head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This high-voltage testing machine uses the output shaft of a first motor to drive a first lead screw to rotate on a support rod. The first lead screw drives a moving rod to slide on the surface of the worktable through rotation. During the sliding process, the moving rod drives a lifting plate to slide and rise on the surface of a guide rod through an adjusting rod. The lifting plate drives a connecting column and a first test head to slide and rise through a connecting rod. Compared with the gear and rack lifting method, this lifting method reduces the small deviations generated during the lifting process of the gear and rack by driving the first test head to slide and rise through the first motor, first lead screw, moving rod, adjusting rod, guide rod, and lifting plate, thereby ensuring the measurement accuracy of the high-voltage testing machine.

[0014] 2. This high-voltage testing machine uses the output shaft of the second motor to drive the second lead screw to rotate on the surface of the support block. The rotation of the second lead screw drives the square nut to slide on the surface of the support base. The square nut drives the push rod to slide directly above the test platform. During the sliding process, the push rod can push the object to be tested out of the surface of the test platform, avoiding the need for manual removal of the object to be tested and facilitating the testing of the next object. At the same time, the absence of manual removal of the object to be tested ensures the safety of the high-voltage testing machine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a side-view perspective view of the structure of this utility model;

[0017] Figure 3 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B;

[0020] Figure 6 This is a frontal sectional three-dimensional schematic diagram of the test platform structure of this utility model.

[0021] In the diagram: 1. Workbench; 11. High-voltage tester body; 12. Support base; 13. Test bench; 14. Transparent protective cover; 15. High-voltage connection hole; 16. Grounding wire hole; 2. Support rod; 21. First motor; 22. First lead screw; 23. Moving rod; 24. Adjusting rod; 25. Guide rod; 26. Lifting plate; 27. Connecting rod; 28. Connecting column; 29. ​​First test head; 210. Spring; 211. Second test head; 3. Support block; 31. Second motor; 32. Second lead screw; 33. Square nut; 34. Push rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 One embodiment provided by this utility model:

[0024] A high-voltage testing machine for easy testing includes a workbench 1, a high-voltage testing machine body 11 mounted on the surface of the workbench 1, a switch, a display screen, a voltage adjustment knob, a plug, etc., mounted on the high-voltage testing machine body 11, a support base 12 fixedly connected to one side of the workbench 1, a testing platform 13 fixedly connected to the surface of the support base 12, a transparent protective cover 14 fixedly connected to the surface of the support base 12, a high-voltage connection hole 15 on the surface of the high-voltage testing machine body 11, a grounding wire hole 16 on the upper surface of the high-voltage testing machine body 11, an adjustment mechanism on the surface of the workbench 1, the adjustment mechanism including a support rod 2 fixedly connected to the surface of the workbench 1, a first motor 21 fixedly connected to the surface of the support rod 2, a first lead screw 22 fixedly connected to the output shaft of the first motor 21, a moving rod 23 threadedly connected to the surface of the first lead screw 22, and a rotating part connected to the surface of the moving rod 23. An adjusting rod 24 is fixedly connected to a guide rod 25 on the surface of the support base 12. A lifting plate 26 is slidably connected to the surface of the guide rod 25. The end of the adjusting rod 24 away from the moving rod 23 is rotatably connected to the bottom of the lifting plate 26. A connecting rod 27 is fixedly connected to the surface of the lifting plate 26. A connecting column 28 is fixedly connected to the bottom of the connecting rod 27. A first test head 29 is fixedly connected to the bottom of the connecting column 28. A spring 210 is fixedly connected to the surface of the test platform 13. A second test head 211 is fixedly connected to the top of the spring 210. The high-voltage connection hole 15 and the grounding wire hole 16 are connected to the first test head 29 and the second test head 211 through electronic wires. The second test head 211 is slidably connected to the surface of the test platform 13. This adjusting mechanism realizes the lifting and lowering of the first test head 29 through the first lead screw 22, reducing the small deviations generated during the lifting and lowering of the gear and rack, thereby ensuring the measurement accuracy of the high-voltage tester.

[0025] Furthermore, a push-out mechanism is provided on the surface of the support base 12. The push-out mechanism includes a support block 3, which is fixedly connected to the surface of the workbench 1. A second motor 31 is fixedly connected to the surface of the support block 3. A second lead screw 32 is fixedly connected to the output shaft of the second motor 31. A square nut 33 is threaded onto the surface of the second lead screw 32. A push-out rod 34 is fixedly connected to the surface of the square nut 33. This push-out mechanism can push out the object to be tested, avoiding the need for manual removal of the object to be tested, facilitating the testing of the next object to be tested. At the same time, it eliminates the need for manual removal of the object to be tested, ensuring the safety of the high-voltage testing machine.

[0026] Furthermore, the first motor 21 drives the first lead screw 22 to rotate on the surface of the support rod 2 via the output shaft. The moving rod 23 has a threaded hole on its surface. The first lead screw 22 is threadedly connected to the threaded hole of the moving rod 23. The first lead screw 22 drives the moving rod 23 to slide on the surface of the worktable 1 by rotating. The moving rod 23 moves linearly on the surface of the worktable 1. After the first lead screw 22 has rotated, it will lock the position of the moving rod 23 on the surface of the worktable 1.

[0027] Furthermore, two sets of guide rods 25 are provided, and guide holes are opened on the surface of the lifting plate 26. The lifting plate 26 slides and rises and falls on the surface of the guide rods 25 through the guide holes. During the sliding process, the moving rod 23 drives the lifting plate 26 to slide and rise and fall on the guide rods 25 through the adjusting rod 24. After the lifting plate 26 has finished rising and falling, the moving rod 23 will support the lifting plate 26 through the adjusting rod 24. Two sets of adjusting rods 24 are provided to ensure the stability of the lifting plate 26 after sliding.

[0028] Furthermore, the connecting rod 27 is L-shaped, and the lifting plate 26 drives the connecting column 28 and the first test head 29 to rise and fall through the connecting rod 27. A guide hole is provided on the surface of the test platform 13, and the second test head 211 slides and rises and falls on the guide hole of the test platform 13. The spring 210 acts on the second test head 211, and the second test head 211 is pressed against the bottom of the object being tested by the spring force. The first test head 29 contacts the top of the object being tested by descending. Both the first test head 29 and the second test head 211 are provided with spring needles required for testing.

[0029] Furthermore, the second motor 31 drives the second lead screw 32 to rotate on the surface of the support block 3 via the output shaft. The second lead screw 32 drives the square nut 33 to slide on the surface of the support base 12 by rotating. After the second lead screw 32 has rotated, it will lock the position of the square nut 33 on the support base 12.

[0030] Furthermore, the square nut 33 drives the push rod 34 to slide synchronously. The push rod 34 can push the object to be tested out of the test platform 13 without manual operation, which is more convenient and safer. The push rod 34 is in the shape of a "U". The bottom of the push rod 34 is higher than the top of the second test head 211, which avoids the push rod 34 touching the second test head 211 during the movement.

[0031] Working principle: The output shaft of the first motor 21 drives the first lead screw 22 to rotate on the support rod 2. The first lead screw 22 drives the moving rod 23 to slide on the surface of the worktable 1 through rotation. During the sliding process, the moving rod 23 drives the lifting plate 26 to slide and rise on the surface of the guide rod 25 through the adjusting rod 24. The lifting plate 26 drives the connecting column 28 and the first test head 29 to slide and rise through the connecting rod 27. Compared with the gear and rack lifting method, this lifting method reduces the small deviations generated during the lifting process of the gear and rack by driving the first test head 29 to slide and rise through the first motor 21, the first lead screw 22, the moving rod 23, the adjusting rod 24, the guide rod 25, and the lifting plate 26, thereby ensuring the measurement accuracy of the high voltage tester.

[0032] The output shaft of the second motor 31 drives the second lead screw 32 to rotate on the surface of the support block 3. The second lead screw 32 drives the square nut 33 to slide on the surface of the support base 12 through rotation. The square nut 33 drives the push rod 34 to slide directly above the test platform 13. During the sliding process, the push rod 34 can push the object to be tested out from the surface of the test platform 13, avoiding the need for manual removal of the object to be tested, making it easier to test the next object to be tested. At the same time, the absence of manual removal of the object to be tested ensures the safety of the high voltage tester.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high voltage tester for ease of detection, characterized by: The system includes a workbench (1), on which a high-voltage tester body (11) is mounted. A support base (12) is fixedly connected to one side of the workbench (1). A test bench (13) is fixedly connected to the surface of the support base (12). A transparent protective cover (14) is fixedly connected to the surface of the support base (12). A high-voltage connection hole (15) is provided on the surface of the high-voltage tester body (11). A grounding wire hole (16) is provided on the upper surface of the high-voltage tester body (11). An adjustment mechanism is provided on the surface of the workbench (1). The adjustment mechanism includes a support rod (2). The support rod (2) is fixedly connected to the surface of the workbench (1). A first motor (21) is fixedly connected to the surface of the support rod (2). A first lead screw (22) is fixedly connected to the output shaft of the first motor (21). A moving rod (23) is threadedly connected to the surface of (22). An adjusting rod (24) is rotatably connected to the surface of the moving rod (23). A guide rod (25) is fixedly connected to the surface of the support base (12). A lifting plate (26) is slidably connected to the surface of the guide rod (25). The end of the adjusting rod (24) away from the moving rod (23) is rotatably connected to the bottom of the lifting plate (26). A connecting rod (27) is fixedly connected to the surface of the lifting plate (26). A connecting column (28) is fixedly connected to the bottom of the connecting rod (27). A first test head (29) is fixedly connected to the bottom of the connecting column (28). A spring (210) is fixedly connected to the surface of the test platform (13). A second test head (211) is fixedly connected to the top of the spring (210). The second test head (211) is slidably connected to the surface of the test platform (13).

2. The high voltage tester of claim 1, wherein: The support base (12) has a push-out mechanism on its surface. The push-out mechanism includes a support block (3), which is fixedly connected to the surface of the workbench (1). A second motor (31) is fixedly connected to the surface of the support block (3). A second lead screw (32) is fixedly connected to the output shaft of the second motor (31). A square nut (33) is threaded onto the surface of the second lead screw (32). A push-out rod (34) is fixedly connected to the surface of the square nut (33).

3. The high voltage tester of claim 1, wherein: The first motor (21) drives the first lead screw (22) to rotate on the surface of the support rod (2) through the output shaft. The moving rod (23) has a threaded hole on its surface. The first lead screw (22) is threadedly connected to the threaded hole of the moving rod (23). The first lead screw (22) drives the moving rod (23) to slide on the surface of the worktable (1) by rotation.

4. The high voltage testing machine of claim 3, wherein: Two sets of guide rods (25) are provided. Guide holes are provided on the surface of the lifting plate (26). The lifting plate (26) slides and rises and falls on the surface of the guide rod (25) through the guide holes. During the sliding process, the moving rod (23) drives the lifting plate (26) to slide and rise and fall on the guide rod (25) through the adjusting rod (24).

5. The high voltage tester of claim 1, wherein: The connecting rod (27) is L-shaped. The lifting plate (26) drives the connecting column (28) and the first test head (29) to rise and fall through the connecting rod (27). A guide hole is provided on the surface of the test platform (13). The second test head (211) slides and rises and falls on the guide hole of the test platform (13). The spring (210) acts on the second test head (211) with elastic force.

6. The high voltage tester of claim 2, wherein: The second motor (31) drives the second lead screw (32) to rotate on the surface of the support block (3) through the output shaft. The second lead screw (32) drives the square nut (33) to slide on the surface of the support base (12) by rotation.

7. The high voltage testing machine of claim 6, wherein: The square nut (33) drives the push rod (34) to slide synchronously. The push rod (34) is in a "U" shape, and the bottom of the push rod (34) is higher than the top of the second test head (211).

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