Impulse voltage tester

Abstract

The utility model discloses an impulse voltage tester which comprises an insulation support, the top of the insulation support is fixedly connected with a first bearing plate, the top of the insulation support is rotatably connected with a second bearing plate, the top of the first bearing plate is provided with an impulse voltage tester body, and the outer wall of the insulation support is fixedly connected with a vertical rod. The outer wall of the vertical rod is slidably sleeved with a sliding sleeve, and the outer wall of the sliding sleeve is fixedly connected with a concave base plate. By arranging the first bearing plate, the second bearing plate, the vertical rod, the sliding sleeve, the concave base plate, the annular block, the round hole, the transparent protective cover, the T-shaped block, the L-shaped plate, the first V-shaped groove, the second V-shaped groove and the strip-shaped groove, various placement modes are adopted according to the shape of a test sample, and the position of the test sample can be fixed, so that the test sample is prevented from sliding off during testing, and the test efficiency is improved. In addition, the test sample is protected, and operators are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of impulse voltage testers, in particular to an impulse voltage tester. Background Art

[0002] An impulse voltage tester is an instrument used to measure the withstand voltage of electrical equipment. It tests whether the equipment can work normally without breakdown or damage by applying a short-term impulse of high voltage. An impulse voltage tester is generally composed of a high voltage generator, a voltage regulator, a measuring instrument, and a protective device. When using, first connect the tester to the device under test, then set the required impulse voltage and duration, and finally observe whether the equipment can work normally. Impulse voltage testers are widely used in the fields of electricity, electronics, communications, aerospace, etc. It can help detect the insulation performance of the equipment, find out the problems with the equipment, and make necessary repairs and improvements to ensure the safety and reliability of the equipment.

[0003] In the prior art, when the test sample breaks down during the test, the instrument will detect the impact current and make a comprehensive judgment on whether it is qualified based on the detected impact current size and voltage attenuation judgment value. The breakdown is generally accompanied by sparking. Due to the large impact current and voltage during the test, the existing large test samples are supported by the desktop, which makes it easy for the round test samples to roll down, which is dangerous when used. Therefore, we propose an impact voltage tester to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an impulse voltage tester.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An impulse voltage tester comprises an insulating bracket, wherein the top of the insulating bracket is fixedly connected to a first supporting plate, the top of the insulating bracket is rotatably connected to a second supporting plate, a body of the impulse voltage tester is placed on the top of the first supporting plate, an outer wall of the insulating bracket is fixedly connected to a vertical rod, a sliding sleeve is provided on the outer wall of the vertical rod, a concave bottom plate is fixedly connected to the outer wall of the sliding sleeve, circular holes are provided on the outer walls of the second supporting plate and the insulating bracket, a transparent protective cover is hinged on the top of the second supporting plate, a plurality of threading holes are provided on the outer wall of the transparent protective cover, and a limiting mechanism is provided on the top of the second supporting plate.

[0007] Preferably, the limiting mechanism includes two L-shaped plates, the top of the second supporting plate is provided with two strip grooves, the inner walls of the two strip grooves are slidably connected with T-shaped blocks, the tops of the two T-shaped blocks are respectively fixedly connected to the bottoms of the two L-shaped plates, the top of the L-shaped plate is provided with a first V-shaped groove, and the outer wall of the L-shaped plate is provided with a second V-shaped groove, and the test sample is supported and limited by setting the first V-shaped groove and the second V-shaped groove.

[0008] Preferably, a threaded hole is formed on the outer wall of the sliding sleeve, and a locking bolt is threadedly connected to the inner wall of the threaded hole, so that the sliding sleeve is fixed on the vertical rod by arranging the locking bolt.

[0009] Preferably, an annular groove is provided at the top of the insulating bracket, and an annular block is rotatably connected to the inner wall of the annular groove. The top of the annular block is fixedly connected to the bottom of the second supporting plate. The annular block is provided to assist the second supporting plate in rotating, so as to adjust the connection angle of the high-voltage connecting line between the test sample and the impulse voltage tester body.

[0010] Preferably, the bottom of the L-shaped plate is slidably connected to the top of the second supporting plate.

[0011] Preferably, an assembly hole is opened at the top of the L-shaped plate, and a fastening bolt is threadedly connected to the inner wall of the assembly hole. The fastening bolt is squeezed to the top of the second supporting plate to fix the position of the L-shaped plate.

[0012] Preferably, a plurality of balls are rotatably connected to the bottom of the annular block, and the balls are arranged to facilitate the annular block to drive the second supporting plate to rotate.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] This solution adopts a variety of placement methods according to the shape of the test sample by setting a first supporting plate, a second supporting plate, a vertical rod, a sliding sleeve, a concave chassis, an annular block, a round hole, a transparent protective cover, a T-block, an L-plate, a first V-groove, a second V-groove and a strip groove, and can fix the position of the test sample to prevent the test sample from slipping during the test, and protect the test sample and the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1This is a three-dimensional structural schematic diagram of an impulse voltage tester proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of an impulse voltage tester proposed by the utility model;

[0018] Figure 3 The utility model provides an impulse voltage tester Figure 2 A schematic diagram of the enlarged structure of part A;

[0019] Figure 4 The present invention is a schematic diagram of a partial three-dimensional structure of an impulse voltage tester proposed by the present invention.

[0020] In the figure: 1. Insulating bracket; 2. First supporting plate; 3. Second supporting plate; 4. Impulse voltage tester body; 5. Vertical rod; 6. Sliding sleeve; 7. Concave chassis; 8. Ring block; 9. Round hole; 10. Transparent protective cover; 11. T-block; 12. L-plate; 13. First V-groove; 14. Second V-groove; 15. Strip groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 4 As shown, it relates to an impulse voltage tester, including an insulating bracket 1, the top of the insulating bracket 1 is fixedly connected to a first supporting plate 2, the top of the insulating bracket 1 is rotatably connected to a second supporting plate 3, and an impulse voltage tester body 4 is placed on the top of the first supporting plate 2. The impulse voltage tester body 4 is powered by an external power supply and converts the power supply voltage into high-voltage pulses required for the test. After voltage multiplication, the impulse voltage tester body 4 will generate a series of high-voltage pulses to simulate different voltage impact conditions, thereby testing the sample's tolerance.

[0023] The outer wall of the insulating bracket 1 is fixedly connected to a vertical rod 5, the outer wall of the vertical rod 5 is slidingly sleeved with a sliding sleeve 6, the outer wall of the sliding sleeve 6 is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected with a locking bolt, the outer wall of the sliding sleeve 6 is fixedly connected to a concave chassis 7, the sliding sleeve 6 moves up and down through the vertical rod 5, and the top of the concave chassis 7 is a concave structure, which is convenient for placing the bottom of the test sample.

[0024] An annular groove is provided at the top of the insulating bracket 1, and an annular block 8 is rotatably connected to the inner wall of the annular groove, and a plurality of ball bearings are rotatably connected to the bottom of the annular block 8. The top of the annular block 8 is fixedly connected to the bottom of the second supporting plate 3. The outer walls of the second supporting plate 3 and the insulating bracket 1 are both provided with circular holes 9. A transparent protective cover 10 is hingedly provided at the top of the second supporting plate 3. The transparent protective cover 10 protects the test sample. A plurality of threading holes are provided on the outer wall of the transparent protective cover 10. The plurality of threading holes are used for inserting high-voltage connecting wires on the impulse voltage tester body 4.

[0025] A limiting mechanism is provided at the top of the second supporting plate 3, and the limiting mechanism includes two L-shaped plates 12. Two strip grooves 15 are opened on the top of the second supporting plate 3. The inner walls of the two strip grooves 15 are slidably connected with T-shaped blocks 11. The T-shaped blocks 11 slide through the strip grooves 15. The tops of the two T-shaped blocks 11 are fixedly connected to the bottoms of the two L-shaped plates 12 respectively, and the L-shaped plates 12 move through the T-shaped blocks 11 and the strip grooves 15.

[0026] A first V-shaped groove 13 is provided at the top of the L-shaped plate 12, a second V-shaped groove 14 is provided on the outer wall of the L-shaped plate 12, the bottom of the L-shaped plate 12 is slidably connected to the top of the second supporting plate 3, an assembly hole is provided at the top of the L-shaped plate 12, and a fastening bolt is threadedly connected to the inner wall of the assembly hole.

[0027] Working principle: When in use, the circular test sample is placed according to its shape, and is placed in the first V-shaped groove 13 on the two L-shaped plates 12. The L-shaped plate 12 is moved through the strip groove 15 and the T-block 11 to support circular test samples of different lengths. The circular test sample can also be inserted into the round hole 9, and the bottom is supported by the concave chassis 7. The sliding sleeve 6 moves up and down through the vertical rod 5 to adjust the support height, and the locking bolt is turned to fix the position of the concave chassis 7. The two sides of the test sample are clamped by moving the L-shaped plate 12 so that the second V-shaped groove 14 clamps the test sample; for irregular test samples, place them between the two L-shaped plates 12, move the two L-shaped plates 12 and turn the fastening bolts to clamp and limit the outer surface. The impulse voltage tester body 4 is connected to the test sample through the crocodile clip on the high-voltage connecting line, and the transparent protective cover 10 is rotated to protect the test sample and the operator.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An impulse voltage tester, comprising an insulating bracket (1), characterized in that: The top of the insulating support (1) is fixedly connected to a first supporting plate (2), the top of the insulating support (1) is rotatably connected to a second supporting plate (3), an impulse voltage tester body (4) is placed on the top of the first supporting plate (2), the outer wall of the insulating support (1) is fixedly connected to a vertical rod (5), the outer wall of the vertical rod (5) is slidably sleeved with a sliding sleeve (6), the outer wall of the sliding sleeve (6) is fixedly connected to a concave bottom plate (7), the outer walls of the second supporting plate (3) and the insulating support (1) are both provided with circular holes (9), the top of the second supporting plate (3) is hinged with a transparent protective cover (10), the outer wall of the transparent protective cover (10) is provided with a plurality of threading holes, and the top of the second supporting plate (3) is provided with a limiting mechanism.

2. An impulse voltage tester according to claim 1, characterized in that: The limiting mechanism comprises two L-shaped plates (12), the top of the second supporting plate (3) is provided with two strip grooves (15), the inner walls of the two strip grooves (15) are slidably connected with T-shaped blocks (11), the tops of the two T-shaped blocks (11) are respectively fixedly connected to the bottoms of the two L-shaped plates (12), the top of the L-shaped plate (12) is provided with a first V-shaped groove (13), and the outer wall of the L-shaped plate (12) is provided with a second V-shaped groove (14).

3. An impulse voltage tester according to claim 1, characterized in that: The outer wall of the sliding sleeve (6) is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected with a locking bolt.

4. An impulse voltage tester according to claim 1, characterized in that: An annular groove is provided at the top of the insulating bracket (1), an annular block (8) is rotatably connected to the inner wall of the annular groove, and the top of the annular block (8) is fixedly connected to the bottom of the second supporting plate (3).

5. An impulse voltage tester according to claim 2, characterized in that: The bottom of the L-shaped plate (12) is slidably connected to the top of the second supporting plate (3).

6. An impulse voltage tester according to claim 2, characterized in that: An assembly hole is provided on the top of the L-shaped plate (12), and a fastening bolt is threadedly connected to the inner wall of the assembly hole.

7. An impulse voltage tester according to claim 4, characterized in that: The bottom of the annular block (8) is rotatably connected with a plurality of balls.

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