Withstand voltage test bench for switch cabinet

Abstract

The utility model discloses a switch cabinet voltage withstanding test bench, which relates to the technical field of switch cabinet testing and comprises a base, a supporting plate is fixedly connected above the base, an adjusting block is fixedly connected to one side of the supporting plate, a sliding groove is formed in one side below the adjusting block, a sliding rod is arranged in the sliding groove, and the adjusting block is fixedly connected with the sliding rod. A fixing hole is formed in the upper portion of one side of the sliding rod, a positioning hole is formed in one side of the adjusting block, a positioning rod matched with the fixing hole is slidably connected into the positioning hole, one end of the positioning rod is fixedly connected with a fixing disc, and an elastic groove is formed in the positioning hole. According to the voltage withstanding test bench for the switch cabinet, through cooperative arrangement of the adjusting blocks, the sliding rods, the positioning rods, the fixing discs, the supporting discs, the springs and the connecting blocks, the distance between the wire connecting and pressing plates can be changed in the using process, so that the effect of conveniently testing switch cabinets of different sizes is achieved, and the purpose of improving the practicability of the test bench is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinet testing, in particular to a switch cabinet withstand voltage test bench. Background Art

[0002] Switchgear is an electrical equipment, which is mainly used to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. It is suitable for various occasions such as power plants, substations, petrochemicals, metallurgy and steel rolling, light industry and textiles, factories and mines, residential areas, high-rise buildings, etc. The components in the switchgear mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protective devices. Switchgear can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear according to different voltage levels. The withstand voltage test of finished products in the production of medium and high voltage switchgear is a very important operation link.

[0003] When using existing test benches, some of them need to enter and change the test lines in the voltage isolation area many times, come out to test the voltage, then enter and change to another wiring mode, come out to test the voltage, and repeat this many times to complete various test contents. This method requires repeated entry and exit of the voltage test isolation area, which increases safety hazards (there are tens of thousands of volts of high voltage in the isolation area during testing), and the efficiency is low. In addition, the wiring position of some test benches is fixed when in use, and it is not convenient to adjust the wiring position. When testing switch cabinets of different sizes, additional wiring is required, which increases additional workload. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a switch cabinet withstand voltage test bench, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a switch cabinet withstand voltage test bench comprises a base, a support plate is fixedly connected to the top of the base, an adjusting block is fixedly connected to one side of the support plate, a slide groove is provided on the lower side of the adjusting block, a sliding rod is arranged inside the slide groove, a fixing hole is provided on the top of one side of the sliding rod, a positioning hole is provided on one side of the adjusting block, a positioning rod matched with the fixing hole is slidably connected inside the positioning hole, one end of the positioning rod is fixedly connected to a fixing plate, an elastic groove is provided inside the positioning hole, a supporting plate slidably connected to the elastic groove is fixedly connected to the outer surface of the positioning rod, a spring is fixedly connected inside the elastic groove, one end of the spring is fixedly connected to one side of the support block, and a connecting block is fixedly connected to one side of the sliding rod and the lower side of the adjusting block.

[0008] Optionally, a wire pressing plate is hinged on one side of the connecting block, an insulating block is fixedly connected below the wire pressing plate, a hydraulic rod is hinged on one side of the connecting block, one end of the hydraulic rod is fixedly connected to an insulating rod, and one end of the insulating rod is hinged to one side of the insulating block.

[0009] Optionally, a controller is provided on one side of the support plate, a plurality of control switches are provided inside the controller, and the plurality of control switches are electrically connected to corresponding hydraulic rods through wires.

[0010] Optionally, a first fixing block is fixedly connected to one side of the support plate, and a high-voltage electrical connection board is fixedly connected to one side of the first fixing block.

[0011] Optionally, a second fixing block is fixedly connected to one side of the support plate, and two sides of the fixing block are fixedly connected to ground wiring boards.

[0012] Optionally, the number of the sliding rods is two, the height of the sliding rods is less than half the height of the adjusting block, the number of the fixing holes is multiple, and the intervals between two adjacent fixing holes are equal.

[0013] (III) Beneficial effects

[0014] The utility model provides a switch cabinet withstand voltage test bench, which has the following beneficial effects:

[0015] 1. The switch cabinet withstand voltage test bench can change the spacing between the pressure connection plates during use through the coordinated arrangement of the adjusting block, the sliding rod, the positioning rod, the fixing plate, the supporting plate, the spring and the connecting block, thereby facilitating the testing of switch cabinets of different sizes and achieving the purpose of increasing the practicality of the test bench.

[0016] 2. The switch cabinet withstand voltage test bench is equipped with a connection block, a wire pressing plate, an insulating block, a hydraulic rod, an insulating rod, a first fixed block, a high-voltage power terminal block, a second fixed block, and a ground terminal block. During use, the rotation of the wire pressing plate can be controlled by a controller at a distance to control whether it is powered on or not, thereby avoiding repeated visits to the test area during testing and achieving the purpose of ensuring personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0019] Figure 3 It is a structural schematic diagram of a front view cross section of the positioning rod of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a side view of the connecting block part of the utility model.

[0021] In the figure: 1. base; 2. support plate; 3. adjustment block; 4. sliding rod; 5. positioning rod; 6. fixed plate; 7. support plate; 8. spring; 9. connecting block; 10. wire pressing plate; 11. insulating block; 12. hydraulic rod; 13. insulating rod; 14. first fixed block; 15. high voltage terminal block; 16. second fixed block; 17. ground terminal block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] See also Figures 1 to 3 The utility model provides a technical solution: a switch cabinet withstand voltage test bench, including a base 1, a support plate 2 is fixedly connected to the top of the base 1, an adjusting block 3 is fixedly connected to one side of the support plate 2, a slide groove is provided on one side of the lower side of the adjusting block 3, a sliding rod 4 is arranged inside the slide groove, a fixing hole is provided on one side of the sliding rod 4, a positioning hole is provided on one side of the adjusting block 3, a positioning rod 5 adapted to the fixing hole is slidably connected to the inside of the positioning hole, a fixing plate 6 is fixedly connected to one end of the positioning rod 5, an elastic groove is provided inside the positioning hole, a supporting plate 7 slidably connected to the elastic groove is fixedly connected to the outer surface of the positioning rod 5, a spring 8 is fixedly connected to the inside of the elastic groove, one end of the spring 8 is fixedly connected to one side of the support block, a connecting block 9 is fixedly connected to one side of the sliding rod 4 and the lower side of the adjusting block 3, the number of sliding rods 4 is two, the height of the sliding rod 4 is less than half of the height of the adjusting block 3, the number of fixing holes is multiple, and the spacing between two adjacent fixing holes is equal.

[0025] When in use, according to the size of the switch cabinet to be tested, pull the fixed plate 6, the fixed plate 6 drives the positioning rod 5 to move, the positioning rod 5 drives the supporting plate 7 to squeeze the spring 8, so that the positioning rod 5 comes out of the fixing hole of the sliding rod 4, and then pull the sliding rod 4 to make it extend to a suitable length, and then release the fixed plate 6, under the action of the elastic force of the spring 8, the positioning rod 5 is inserted into the fixing hole of the sliding rod 4, and the sliding rod 4 is fixed, thereby changing the spacing between the wire pressing plates 10 to adapt to the testing between switch cabinets of different sizes.

[0026] Example 2

[0027] See also Figure 1 and Figure 4The utility model provides a technical solution: a switch cabinet withstand voltage test bench, a wire pressing plate 10 is hinged on one side of the connecting block 9, an insulating block 11 is fixedly connected to the lower part of the wire pressing plate 10, a hydraulic rod 12 is hinged on one side of the connecting block 9, one end of the hydraulic rod 12 is fixedly connected to an insulating rod 13, one end of the insulating rod 13 is hinged to one side of the insulating block 11, a controller is provided on one side of the support plate 2, a plurality of control switches are provided inside the controller, and the plurality of control switches are electrically connected to the corresponding hydraulic rods 12 through wires, a first fixed block 14 is fixedly connected to one side of the support plate 2, a high-voltage electric terminal board 15 is fixedly connected to one side of the first fixed block 14, a second fixed block 16 is fixedly connected to one side of the support plate 2, and grounding terminal boards 17 are fixedly connected to both sides of the fixed blocks.

[0028] During the test, the corresponding wires are connected to the corresponding wire pressing plates 10, and the remote control controller starts the corresponding control switch. The control switch controls the extension and retraction of the hydraulic rod 12. The hydraulic rod 12 drives the wire pressing plate 10 to rotate through the insulating rod 13 and the insulating block 11, so that it can contact the high-voltage power terminal board 15 and the ground wire terminal board 17, thereby realizing different withstand voltage tests, avoiding entering the test area during testing, and improving safety.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A switch cabinet withstand voltage test bench, comprising a base (1), characterized in that: A support plate (2) is fixedly connected to the top of the base (1), an adjustment block (3) is fixedly connected to one side of the support plate (2), a slide groove is provided on one side of the bottom of the adjustment block (3), a sliding rod (4) is arranged inside the slide groove, a fixing hole is provided on one side of the sliding rod (4) above, a positioning hole is provided on one side of the adjustment block (3), a positioning rod (5) adapted to the fixing hole is slidably connected inside the positioning hole, a fixing plate (6) is fixedly connected to one end of the positioning rod (5), an elastic groove is provided inside the positioning hole, a support plate (7) slidably connected to the elastic groove is fixedly connected to the outer surface of the positioning rod (5), a spring (8) is fixedly connected inside the elastic groove, one end of the spring (8) is fixedly connected to one side of the support block, and a connecting block (9) is fixedly connected to one side of the sliding rod (4) and the bottom of the adjustment block (3).

2. The switch cabinet withstand voltage test bench according to claim 1, characterized in that: A wire pressing plate (10) is hingedly connected to one side of the connection block (9), an insulating block (11) is fixedly connected below the wire pressing plate (10), a hydraulic rod (12) is hingedly connected to one side of the connection block (9), one end of the hydraulic rod (12) is fixedly connected to an insulating rod (13), and one end of the insulating rod (13) is hingedly connected to one side of the insulating block (11).

3. The switch cabinet withstand voltage test bench according to claim 2, characterized in that: A controller is provided on one side of the support plate (2), a plurality of control switches are provided inside the controller, and the plurality of control switches are electrically connected to corresponding hydraulic rods (12) via wires.

4. The switch cabinet withstand voltage test bench according to claim 1, characterized in that: A first fixing block (14) is fixedly connected to one side of the support plate (2), and a high-voltage electric connection board (15) is fixedly connected to one side of the first fixing block (14).

5. The switch cabinet withstand voltage test bench according to claim 1, characterized in that: A second fixing block (16) is fixedly connected to one side of the support plate (2), and a grounding wiring board (17) is fixedly connected to two sides of the fixing block.

6. The switch cabinet withstand voltage test bench according to claim 1, characterized in that: The number of the sliding rods (4) is two, the height of the sliding rods (4) is less than half the height of the adjustment block (3), the number of the fixing holes is multiple, and the spacing between two adjacent fixing holes is equal.

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