A fast-switching-range insulation voltage tester
By designing the support and protective structures, the stability and safety issues of the pressure tester when idle were resolved, achieving protection and heat dissipation effects, extending service life, and improving equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU ZHIXIN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
The existing withstand voltage tester body is directly exposed when not in use, making it susceptible to impacts and other external factors, which can lead to aging and damage of internal components, shorten its service life, and pose safety hazards.
An insulation withstand voltage tester comprising a support structure and a protective structure was designed. The support structure ensures instrument stability through height-adjustable feet, while the protective structure protects the instrument by enabling rapid raising and lowering of the protective shell through sliding and rotating components, and dissipates heat through a breathable design.
It effectively prevents the instrument from being damaged by collisions when idle, improves the stability and safety of the equipment, extends its service life, and maintains heat dissipation through a breathable design, thereby enhancing the instrument's practicality and durability.
Smart Images
Figure CN224536047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of insulation withstand voltage testers, and in particular to an insulation withstand voltage tester with a rapid range switching capability. Background Technology
[0002] An insulation withstand voltage tester is a key testing device used to detect the insulation performance of electrical equipment. It is widely used in power, electronics, electrical manufacturing, and quality inspection. Its basic principle is to apply a high voltage to the insulation part of the equipment under test to detect whether there are insulation problems such as breakdown or leakage. With the increase in diversified testing needs, insulation withstand voltage testers with rapid range switching function have emerged. They can flexibly switch the voltage and current detection range in different testing environments, improve testing efficiency and adaptability, and meet the requirements of high-efficiency and accurate testing.
[0003] In the existing technology, the withstand voltage tester body is directly exposed to the outside when idle. External factors such as collisions can cause internal components to age and be damaged, shortening the instrument's service life and even causing malfunctions that affect the test accuracy. At the same time, there is a safety hazard of personnel accidentally touching the withstand voltage tester body parts, which affects the stability and reliability of the equipment. Utility Model Content
[0004] Given that the existing withstand voltage tester body is directly exposed to the outside when idle, the impact of external factors such as collisions can lead to aging and damage of internal components, shorten the service life of the instrument, and even cause malfunctions that affect the test accuracy. At the same time, there is a safety hazard of personnel accidentally touching the withstand voltage tester body parts, which affects the stability and reliability of the equipment. Therefore, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide an insulation withstand voltage tester with a quick range switching capability. The purpose is that when the withstand voltage tester body is idle, it will be directly exposed to the outside, and the influence of external factors such as collisions will cause the internal components to age and be damaged, shortening the service life of the instrument, or even causing malfunctions that affect the test accuracy. At the same time, there is a safety hazard of personnel accidentally touching the withstand voltage tester body parts, thereby affecting the stability and reliability of the equipment.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an insulation withstand voltage tester with rapid range switching, comprising a withstand voltage tester body, a support structure, and a protective structure. The withstand voltage tester body and the protective structure are respectively mounted on the support structure. The bottom of the withstand voltage tester body is fixedly mounted with feet around its perimeter. The protective structure includes a sliding rod, a limiting block, a protective shell, a slider, a pin, and a connecting plate. The protective shell is slidably connected to the slider and the sliding rod. The limiting block limits the slider and has a limiting hole at its top. The connecting plate is rotatably connected to the protective shell via a pin. A second screw is threaded onto the connecting plate, and the second screw is adapted to the limiting hole.
[0007] As a preferred embodiment of the insulation withstand voltage tester with rapid range switching described in this utility model, the supporting structure includes a base plate, a vent hole is provided in the middle of the base plate, and a limiting ring is fixedly installed at the top of the base plate, the limiting ring being compatible with the base foot.
[0008] As a preferred embodiment of the insulation withstand voltage tester with rapid range switching described in this utility model, wherein: ear blocks are fixedly installed around the outer perimeter of the base plate, a first screw is threaded onto the ear blocks, a first turntable is fixedly installed at the top of the first screw, and a support foot is rotatably installed at the bottom of the first screw.
[0009] In a preferred embodiment of the insulation withstand voltage tester with rapid range switching described in this utility model, the slide rod is fixedly installed around the top of the base plate, and the limiting block is fixedly installed at the top of the slide rod.
[0010] In a preferred embodiment of the insulation withstand voltage tester with rapid range switching described in this utility model, the slider is fixedly installed at the four corners of the protective shell, the slider is sleeved on the slide rod, and the slider and the slide rod are slidably connected.
[0011] As a preferred embodiment of the insulation withstand voltage tester with rapid range switching described in this utility model, the following features are provided: a handle is fixedly installed on the top of the protective shell; a ventilation groove is provided on the side wall of the protective shell; the pin is rotatably installed at the four corners of the top of the protective shell; the connecting plate is fixedly installed on the top of the pin; and a second turntable is fixedly installed on the top of the second screw.
[0012] The beneficial effects of this utility model are: 1. Through the protective structure, the sliding cooperation of the slider and the slide rod, the rotation design of the pin and the connecting plate, and the limit locking of the second screw and the limit hole, the protective shell can be easily raised or lowered. After use, the protective shell is lowered to protect the pressure tester body and avoid damage to the pressure tester body from external environmental collisions. The design of the vent and vent groove still maintains air circulation in the protected state, and uses natural convection to remove the heat generated by the equipment operation, which simplifies the operation process and improves the practicality and durability of the equipment. 2. Through the set support structure, the first turntable drives the first screw to move threaded in the lug, so that the height of the support foot can be flexibly adjusted to adapt to uneven ground. The level of the base plate can be adjusted by simple rotation operation, ensuring that the pressure tester body is always in a stable state, avoiding instrument shaking caused by ground tilt, and ensuring safety during high-pressure testing. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the pressure resistance tester body of this utility model; Figure 3 This is a schematic diagram of the support structure of this utility model; Figure 4 This is a schematic diagram of the protective structure of this utility model.
[0014] Explanation of reference numerals in the attached figures: 1. Pressure resistance tester body; 11. Base; 2. Support structure; 21. Base plate; 22. Vent hole; 23. Limiting ring; 24. Ear block; 25. First screw; 26. Support leg; 27. First turntable; 3. Protective structure; 301. Slide rod; 302. Limiting block; 303. Limiting hole; 304. Protective shell; 305. Sliding block; 306. Handle; 307. Pin; 308. Connecting plate; 309. Second screw; 310. Second turntable; 311. Vent groove. Detailed Implementation
[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0016] Example 1 Refer to attached figure Figure 1 - Appendix Figure 3 This is the first embodiment of the present invention, providing an insulation withstand voltage tester with rapid range switching, including a withstand voltage tester body 1, a support structure 2, and a protective structure 3. The withstand voltage tester body 1 and the protective structure 3 are respectively mounted on the support structure 2. The bottom of the withstand voltage tester body 1 is fixedly mounted with feet 11. The withstand voltage tester body 1 is a prior art technology. The withstand voltage tester body 1 mainly consists of a high voltage output module, a voltage / current switching circuit, a control unit, buttons, a display interface, and a protection circuit. The user selects the desired voltage or current range through the buttons. The buttons are connected to the internal encoder and send switching commands to the control unit. The control unit drives the relay group or electronic switch according to the commands to complete the range switching of the high voltage output stage or the current sampling circuit. The display interface updates the current range status synchronously to ensure intuitive operation. The components are precisely coordinated through signal lines and control buses to form a closed-loop control system, realizing rapid range switching and stable output. The support structure 2 includes a base plate 21, with a vent 22 in the middle. A limiting ring 23 is fixedly installed at the top of the base plate 21. The limiting ring 23 is compatible with the foot 11. The foot 11 is placed into the limiting ring 23, so that the pressure tester body 1 is stably installed at the top of the base plate 21. Ear blocks 24 are fixedly installed around the outer perimeter of the base plate 21. A first screw 25 is threaded onto the ear blocks 24. A first turntable 27 is fixedly installed at the top of the first screw 25. A support foot 26 is rotatably installed at the bottom of the first screw 25. During use, the base foot 11 is inserted into the limiting ring 23, so that the pressure tester body 1 is mounted on the base plate 21. When the ground in the environment where the pressure tester body 1 is used is uneven, the first turntable 27 is rotated. The first turntable 27 drives the first screw 25 to move threadedly in the lug 24, so that the support foot 26 moves. Through the contact between the support foot 26 and the ground, the base plate 21 is adjusted so that the base plate 21 is kept horizontal, thereby keeping the pressure tester body 1 stable.
[0017] Example 2 Refer to attached figure Figure 1 - Appendix Figure 4 This is the second embodiment of the present invention, which differs from the first embodiment in that: The protective structure 3 includes a slide rod 301, a protective shell 304, and a pin 307. The slide rod 301 is fixedly installed around the top of the base plate 21. A limiting block 302 is fixedly installed at the top of the slide rod 301. A limiting hole 303 is provided at the top of the limiting block 302. A slider 305 is fixedly installed at the four corners of the protective shell 304. The slider 305 is sleeved on the slide rod 301, and the slider 305 and the slide rod 301 are slidably connected. A handle 306 is fixedly installed at the top of the protective shell 304. A ventilation groove 311 is provided on the side wall of the protective shell 304. The pin 307 is rotatably installed at the four corners of the top of the protective shell 304. A connecting plate 308 is fixedly installed at the top of the pin 307. A second screw 309 is threaded onto the connecting plate 308. The second screw 309 is adapted to the limiting hole 303. A second turntable 310 is fixedly installed at the top of the second screw 309. During use, when the pressure tester body 1 needs to be used, pull the handle 306. The handle 306 moves the protective shell 304. The protective shell 304 slides on the slide rod 301 via the slider 305. When the protective shell 304 slides to the top of the slide rod 301, rotate the connecting plate 308. The connecting plate 308 drives the pin 307 to rotate, causing the second screw 309 to rotate directly above the limiting hole 303. Rotate the second turntable 310. The second turntable 310 drives the second screw 309 to move threadedly in the connecting plate 308, so that the end of the second screw 309 extends into the limiting hole 303, thereby limiting the second screw 309 and stabilizing the protective shell 304. The pressure tester body 1 is fixed above the pressure tester body 1. After the pressure tester body 1 is used, the second screw 309 is rotated to disengage from the limiting hole 303, thereby releasing the limiting of the second screw 309. Then the connecting plate 308 is rotated to prevent the connecting plate 308, the second screw 309 and the slide bar 301 from interfering, thereby lowering the protective shell 304. The protective shell 304 covers the pressure tester body 1, thereby protecting the pressure tester body 1. After the pressure tester body 1 is used, it generates heat. Through the vent hole 22 and the vent groove 311, the outside air can flow, which plays a certain role in heat dissipation.
[0018] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An insulation withstand voltage tester with rapidly switchable ranges, characterized in that: The test instrument includes a pressure resistance tester body (1), a support structure (2), and a protective structure (3). The pressure resistance tester body (1) and the protective structure (3) are respectively mounted on the support structure (2). The bottom of the pressure resistance tester body (1) is fixedly mounted with feet (11). The protective structure (3) includes a slide rod (301), a limiting block (302), a protective shell (304), a slider (305), a pin (307), and a connecting plate (308). The shell (304) is slidably connected by a slider (305) and a slide rod (301). The limiting block (302) limits the slider (305). The top of the limiting block (302) is provided with a limiting hole (303). The connecting plate (308) is rotatably connected to the protective shell (304) by a pin (307). A second screw (309) is threaded on the connecting plate (308). The second screw (309) is adapted to the limiting hole (303).
2. The insulation withstand voltage tester with rapidly switchable ranges according to claim 1, characterized in that: The support structure (2) includes a base plate (21), a ventilation hole (22) is provided in the middle of the base plate (21), and a limiting ring (23) is fixedly installed at the top of the base plate (21). The limiting ring (23) is compatible with the foot (11).
3. The insulation withstand voltage tester with rapidly switchable ranges according to claim 2, characterized in that: Ear blocks (24) are fixedly installed around the outer perimeter of the base plate (21). A first screw (25) is threaded onto the ear blocks (24). A first turntable (27) is fixedly installed at the top of the first screw (25). A support foot (26) is rotatably installed at the bottom of the first screw (25).
4. The insulation withstand voltage tester with rapidly switchable ranges according to claim 1, characterized in that: The slide bar (301) is fixedly installed around the top of the base plate (21), and the limiting block (302) is fixedly installed at the top of the slide bar (301).
5. The insulation withstand voltage tester with rapidly switchable range according to claim 4, characterized in that: The slider (305) is fixedly installed at the four corners of the protective shell (304). The slider (305) is sleeved on the slide rod (301), and the slider (305) and the slide rod (301) are slidably connected.
6. The insulation withstand voltage tester with rapidly switchable range according to claim 5, characterized in that: A handle (306) is fixedly installed at the top of the protective shell (304). A ventilation groove (311) is provided on the side wall of the protective shell (304). The pin (307) is rotatably installed at the four corners of the top of the protective shell (304). The connecting plate (308) is fixedly installed at the top of the pin (307). The second turntable (310) is fixedly installed at the top of the second screw (309).