Insulation tool withstand voltage test device

Abstract

The utility model relates to the field of withstand voltage tests, and discloses an insulating tool withstand voltage test device, which comprises a detection frame and an alternating current detection instrument fixed on the detection frame, a fixed electrode is fixedly mounted on the detection frame, and the alternating current detection instrument is connected with the fixed electrode through a cable. The withstand voltage test device further comprises a movable electrode which is installed on the detection frame in a sliding mode, and the movable electrode and the fixed electrode are distributed in parallel. When the test device is used, the distance between the two groups of electrodes can be adjusted, so that insulation tools with different lengths can be detected, and the detection range of the test device on the insulation tools is expanded.

Description

Technical Field

[0001] The utility model relates to the field of voltage resistance test, in particular to a voltage resistance test device for insulating tools. Background Art

[0002] Insulating tools such as insulating rods, insulating rods, and grounding wires need to undergo AC withstand voltage tests regularly to prevent the danger of surface cracking of the insulating tools. The tools to be tested are connected to the withstand voltage test device, and the AC output is controlled by electrodes to perform the withstand voltage test on the tools. However, during the test process, the tools are easily tripped due to the influence of the current value, which will affect the withstand voltage test of the tools.

[0003] To this end, patent publication number CN115047297A discloses an automatic withstand voltage test device for insulating tools, comprising: a bracket assembly, including a support base, a water tank disposed on the support base, and an indicator light disposed on the support base; a test assembly disposed within the support base, comprising a contactor, a switch and a protective switch connected to the contactor, and a bus; and a power connection assembly disposed within the circuit assembly, comprising a first connector and a second connector. The automatic withstand voltage test device for insulating tools of the present invention can simultaneously perform withstand voltage tests on multiple insulating boots or insulating gloves, and measure the leakage current of each test piece on the high-voltage side. When the leakage current of each test piece exceeds a set value, the device automatically trips without affecting the normal testing of other test pieces. Strictly implementing standards will make the test more standardized, improve the work efficiency of the test, make up for the shortcomings of existing test equipment, and more reliably ensure the safe use of insulating tools.

[0004] However, due to the different lengths of different insulating tools, the distance between the two sets of electrodes in the testing equipment is certain. The test equipment cannot meet the requirements of voltage resistance testing for insulating tools of different lengths when in use. When removing the insulating tools from the testing equipment after the test, the test power supply must be disconnected first to ensure the safety of the test. However, the voltage resistance test time generally takes five or six minutes, and the waiting time for the test is relatively long. If the staff forgets to disconnect the power supply when taking the object after the test, it will pose a certain risk. Utility Model Content

[0005] In view of the above problems, an insulating tool withstand voltage test device is provided. By adjusting the distance between the two sets of electrodes, the problem that the test equipment cannot meet the requirements of testing insulating tools of different lengths is solved.

[0006] In order to solve the problems of the existing technology, the utility model provides an insulating tool withstand voltage test device, including a detection frame and an AC detection instrument fixed on the detection frame, a fixed electrode is fixedly installed on the detection frame, and the AC detection instrument and the fixed electrode are connected to each other through a cable. The withstand voltage test device also includes a movable electrode slidably installed on the detection frame.

[0007] Preferably, an insulating slide is installed on the movable electrode, a planar slider is fixed on the insulating slide, the planar slider is slidably assembled with a slide rail, the slide rail is fixedly installed on the surface of the detection frame, a servo motor is fixed on the detection frame, the output end of the servo motor is connected to a screw rod, the screw rod is threadedly assembled with a drive frame, and the drive frame is fixed on the insulating slide.

[0008] Preferably, both the fixed electrode and the movable electrode are equipped with spacers for separating insulating tools.

[0009] Preferably, a fixed support bracket and a movable support bracket are provided between the fixed electrode and the movable electrode, and the distance between the fixed support bracket and the fixed electrode is the same as the distance between the movable support bracket and the movable electrode.

[0010] Preferably, a lifting support is installed on the fixed support bracket, and a cylinder is installed on the detection frame, and the lifting end of the cylinder is fixedly assembled with the lifting support.

[0011] Preferably, a slide rod is fixed on the movable support bracket, the slide rod is telescopically assembled with the hollow column, the hollow column is installed on the fixed support bracket, and a spring is installed between the fixed support bracket and the movable support bracket.

[0012] Preferably, a sliding frame is further installed on the movable supporting bracket, a convex sliding block is slidably fitted in the sliding frame, and a fixing frame is fixedly installed between the convex sliding block and the insulating sliding seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the distance between the fixed electrode and the movable electrode is adjusted by a screw drive structure, so that insulating tools of different lengths can be placed between the fixed electrode and the movable electrode, thereby expanding the detection range of the withstand voltage test equipment.

[0015] 2. In the present invention, multiple groups of partition structures are provided on the fixed electrode and the movable electrode. Multiple groups of insulating tools can be placed simultaneously between the two groups of electrodes through the intervals, thereby improving the efficiency of the test device in detecting insulating tools.

[0016] 3. The utility model is provided with an independent separation structure of the insulating tool and the electrode. After the insulating tool completes the voltage test, the insulating tool is pushed upward by the movable support bracket and the fixed support bracket, so that the two ends of the insulating tool are separated from the electrode, avoiding current flowing through the insulating tool and improving the safety of the voltage test operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of fixed electrodes and movable electrodes of an insulating tool withstand voltage test device.

[0018] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a detection frame of an insulating tool voltage resistance test device.

[0019] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a flat slider and a slide rail of an insulating tool voltage resistance test device.

[0020] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a partition of an insulating tool voltage resistance test device.

[0021] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a cylinder of an insulating tool pressure test device.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of a movable support frame of an insulating tool withstand voltage test device;

[0023] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a slide frame of an insulating tool withstand voltage test device.

[0024] The numbers in the figure are:

[0025] 1-Detection rack;

[0026] 2-AC testing instrument;

[0027] 3-Fixed electrodes;

[0028] 4-moving electrode, 41-insulating slide, 42-plane slider, 43-slide rail, 44-servo motor, 45-screw, 46-drive frame;

[0029] 5-interval;

[0030] 6-fixed support, 61-lifting support, 62-cylinder;

[0031] 7-movable support frame, 71-sliding rod, 72-hollow column, 73-spring, 74-sliding frame, 75-convex sliding block, 76-fixed frame. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figure 1-Figure 7As shown, an insulating tool withstand voltage test device includes a test frame 1 and an AC test instrument 2 fixed on the test frame 1. A fixed electrode 3 is fixedly installed on the test frame 1. The AC test instrument 2 and the fixed electrode 3 are interconnected by a cable. The withstand voltage test device also includes a movable electrode 4 slidably mounted on the test frame 1. The movable electrode 4 is parallel to the fixed electrode 3. Nylon universal wheels are used under the test frame 1, and the frame body is made of epoxy resin pultruded board. The epoxy resin pultruded board has a withstand voltage rating of more than 200kV, a wide range of test voltages, and is safe and reliable. The test frame 1 is equipped with a milliammeter to check leakage current at any time to ensure the safety of the test instrument and tools.

[0034] According to the length of the insulating tool to be tested, the distance between the fixed electrode 3 and the movable electrode 4 in the test device is adjusted so that the insulating tool can be placed between the fixed electrode 3 and the movable electrode 4, thereby expanding the detection range of the test device for the insulating tool.

[0035] An insulating slide 41 is installed on the movable electrode 4, and the movable electrode 4 and the insulating slide 41 are snap-fitted together. An insulating support is also installed under the fixed electrode 3 to ensure the safety of the detection frame 1. A flat slider 42 is fixed on the insulating slide 41, and the flat slider 42 is slidably assembled with a slide rail 43. The slide rail 43 is fixedly installed on the surface of the detection frame 1. A servo motor 44 is fixed on the detection frame 1, and a screw rod 45 is connected to the output end of the servo motor 44. The screw rod 45 is threadedly assembled with a drive frame 46, and the drive frame 46 is fixed on the insulating slide 41.

[0036] The servo motor 44 is operated to control the rotation of the screw rod 45, and the screw rod 45 controls the lateral movement of the driving frame 46 through threaded transmission. The driving frame 46 is fixedly installed between the insulating slide 41, so that the insulating slide 41 slides along the slide rail 43 through the flat slider 42 below, controlling the position of the movable electrode 4 corresponding to the detection frame 1.

[0037] Both the fixed electrode 3 and the movable electrode 4 are equipped with spacers 5 for separating insulating tools. The spacers 5 are sleeved on the outside of the electrodes. The spacing between the spacers 5 can be adjusted according to the shape of the insulating tool to be detected.

[0038] Several partitions 5 are installed on the fixed electrode 3 and the movable electrode 4 to divide the electrodes into multiple distributions horizontally, so that multiple insulating tools can be placed on the electrodes at the same time to complete the voltage test, thereby improving the test efficiency.

[0039] A fixed support bracket 6 and a movable support bracket 7 are arranged between the fixed electrode 3 and the movable electrode 4. The distance between the fixed support bracket 6 and the fixed electrode 3 is the same as the distance between the movable support bracket 7 and the movable electrode 4. The fixed support bracket 6 and the movable support bracket 7 are made of insulating material to maintain the safety of ejecting the insulating tool, and multiple groups of fixed support brackets 6 and movable support brackets 7 are arranged between the two groups of electrodes, which can support multiple insulating tools to be tested.

[0040] Some spacing tools, such as insulating rods, have an arc-shaped outer structure, which makes them easy to roll laterally when placed on the electrodes for testing. Two sets of supporting structures are provided under the insulating tools to relatively limit the position of the insulating tools between the electrodes.

[0041] A lifting support 61 is installed on the fixed support bracket 6 , and a cylinder 62 is installed on the detection frame 1 . The lifting end of the cylinder 62 is fixedly assembled with the lifting support 61 .

[0042] After the test, the cylinder 62 is operated to push the fixed support bracket 6 to move upward, and the fixed support bracket 6 pushes the corresponding insulating tool above to move upward synchronously, so that the insulating tool is separated from the fixed electrode 3 and the movable electrode 4. The insulating tool is now mounted on the fixed support bracket 6 and the movable support bracket 7. Even if the AC detection instrument 2 is not powered off, there is no danger for the staff to take the insulating tool, thereby improving the safety of the test device application.

[0043] A slide rod 71 is fixed on the movable support bracket 7, and the slide rod 71 is telescopically assembled with a hollow column 72. The hollow column 72 is installed on the fixed support bracket 6, and a spring 73 is installed between the fixed support bracket 6 and the movable support bracket 7.

[0044] The movable support bracket 7 corresponds to the side of the movable electrode 4, and the fixed support bracket 6 corresponds to the side of the fixed electrode 3. The two are distributed horizontally, and the movable support bracket 7 is connected to the side position of the fixed support bracket 6 through an elastic telescopic structure. When the fixed support bracket 6 moves up, it drives the movable support bracket 7 to move up and down synchronously, and the distances between the two groups of supporting structures corresponding to the sides of the electrodes are the same, so that the movable support bracket 7 and the fixed support bracket 6 are arranged in the middle position of the two groups of electrodes. When some rod insulating tools are lifted up and down, the distances between the two groups of supporting structures and the two ends of the insulating tools are basically the same, which avoids the deviation of the center of gravity during the process of lifting and ejecting, causing the insulating tools to fall sideways, thereby increasing the stability of the movable support bracket 7 and the fixed support bracket 6 during the up and down movement and ejection process.

[0045] A sliding frame 74 is further mounted on the movable support bracket 7 , in which a convex sliding block 75 is slidably fitted. A fixing frame 76 is fixedly mounted between the convex sliding block 75 and the insulating sliding seat 41 .

[0046] When the movable electrode 4 moves laterally to adjust the spacing between it and the fixed electrode 3, the movable electrode 4 drives the convex slider 75 below to move synchronously through the fixed frame 76. The convex slider 75 is embedded in the slide frame 74. The movement of the convex slider 75 pushes the slide frame 74 and the movable support bracket 7 to move laterally synchronously. At this time, the movable support bracket 7 controls the slide rod 71 to pass through the side of the hollow column 72 for telescopic adjustment. After adjusting the spacing between the two groups of electrodes, the two groups of support brackets are still in a centrally symmetrical distribution state between the two groups of electrodes, thereby maintaining the stability of the support bracket moving up and down to eject the tool.

[0047] When the movable support bracket 7 moves upward, the convex slider 75 is engaged in the interior of the slide frame 74 and slides up and down, so that the movable support bracket 7 moves upward to eject the insulating tool.

[0048] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An insulating tool withstand voltage test device, comprising a detection frame (1) and an AC detection instrument (2) fixed on the detection frame (1), a fixed electrode (3) fixedly mounted on the detection frame (1), the AC detection instrument (2) and the fixed electrode (3) being connected to each other via a cable, characterized in that: The pressure-resistant test device also includes a movable electrode (4) slidably mounted on the detection frame (1).

2. The insulating tool withstand voltage test device according to claim 1, characterized in that: An insulating slide seat (41) is installed on the movable electrode (4), a planar slide block (42) is fixed on the insulating slide seat (41), the planar slide block (42) is slidably assembled with a slide rail (43), the slide rail (43) is fixedly mounted on the surface of the detection frame (1), a servo motor (44) is fixed on the detection frame (1), a lead screw (45) is connected to the output end of the servo motor (44), the lead screw (45) is threadedly assembled with a drive frame (46), and the drive frame (46) is fixed on the insulating slide seat (41).

3. The insulating tool withstand voltage test device according to claim 1, characterized in that: The fixed electrode (3) and the movable electrode (4) are both provided with a spacer (5) for separating insulating tools.

4. The insulating tool withstand voltage test device according to claim 1, characterized in that: A fixed support frame (6) and a movable support frame (7) are arranged between the fixed electrode (3) and the movable electrode (4); the distance between the fixed support frame (6) and the fixed electrode (3) is the same as the distance between the movable support frame (7) and the movable electrode (4).

5. The insulating tool withstand voltage test device according to claim 4, characterized in that: A lifting support (61) is installed on the fixed support frame (6), and a cylinder (62) is installed on the detection frame (1), and the lifting end of the cylinder (62) is fixedly assembled with the lifting support (61).

6. The insulating tool withstand voltage test device according to claim 4, characterized in that: A slide bar (71) is fixed on the movable support frame (7), and the slide bar (71) is telescopically assembled with a hollow column (72). The hollow column (72) is installed on the fixed support frame (6), and a spring (73) is installed between the fixed support frame (6) and the movable support frame (7).

7. The insulating tool withstand voltage test device according to claim 4, characterized in that: The movable support frame (7) is also provided with a slide frame (74), a convex sliding block (75) is slidably mounted in the slide frame (74), and a fixing frame (76) is fixedly installed between the convex sliding block (75) and the insulating sliding seat (41).

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