High-altitude connection test clamp for electric power test

Abstract

An electric power test high-place connection test clamp belongs to the technical field of electric power test equipment and comprises an inverted J-shaped box, a support rod is fixedly mounted on the lower surface of the inverted J-shaped box, at least two insulation auxiliary wheels are rotatably mounted on the right surface of the inverted J-shaped box, a T-shaped insulation plate is fixedly mounted in the inverted J-shaped box, and two movable rods are slidably mounted in the inverted J-shaped box in a penetrating manner. A special-shaped conductive copper plate is fixedly installed between the upper surfaces of the two movable rods, a wiring end is fixedly installed on the left surface of the special-shaped conductive copper plate, a detection line is fixedly installed in the wiring end, a supporting plate is fixedly installed between the two movable rods, and the right end of the supporting plate extends to be arranged outside the inverted-J-shaped box. And two springs are fixedly arranged between the supporting plate and the inverted J-shaped box, and the springs are sleeved on the outer surfaces of the corresponding movable rods, so that the high-altitude cable detection operation flow can be optimized, and the efficiency and the reliability of detection connection are greatly improved while the manual operation intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of power testing equipment, specifically relating to a high-altitude connection test clamp for power testing. Background Technology

[0002] In the daily operation and maintenance of power systems, performance testing of high-altitude power cables is a key aspect of ensuring the safe and stable operation of the power grid. Currently, existing high-altitude testing clamps on the market suffer from significant operational inconvenience when performing cable testing tasks and changing testing positions to test different parts of the cable.

[0003] Taking the existing patent with publication number CN207472925U and patent name "A Suspended High-Altitude Operation High Current Test Clamp" as an example, although it can lift the alligator test clamp to a high position and clamp it on the outer surface of the cable for testing using an insulated operating rod, during multi-point testing experiments, when it is necessary to move and change the cable testing position, it mainly relies on manual lifting. Given the lack of an effective force-bearing support structure above the test clamp, the operator must rely entirely on arm strength to lift the test clamp and move it to the target testing position, which is quite strenuous. Furthermore, because the operating rod has a certain weight, during the testing process, if manual lifting is not performed, even though the alligator test clamp is clamped on the outer surface of the cable, the weight of the operating rod can easily pull the alligator test clamp down, posing a risk of detachment from the cable.

[0004] In general, existing high-altitude test clamps are relatively labor-intensive to operate during testing. Therefore, to solve the above-mentioned technical problems, a high-altitude connection test clamp for power testing is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a high-altitude connection test clamp for power testing, which solves the problems of laborious operation and lack of convenience in the existing cable testing clamp when testing cables at high altitudes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A power testing high-altitude connection test clamp includes an inverted J-shaped box. A support rod is fixedly installed on the lower surface of the inverted J-shaped box. At least two insulating auxiliary wheels are rotatably installed on the right surface of the inverted J-shaped box. A T-shaped insulating plate is fixedly installed inside the inverted J-shaped box, and two movable rods are slidably installed through the inverted J-shaped box. A non-circular conductive copper plate is fixedly installed between the upper surfaces of the two movable rods. The non-circular conductive copper plate cooperates with the T-shaped insulating plate to clamp and position the cable to be tested. A terminal is fixedly installed on the left surface of the non-circular conductive copper plate, and a test line is fixedly installed inside the terminal. A support plate is fixedly installed between the two movable rods, and the support plate is located below the non-circular conductive copper plate. The right end of the support plate extends outside the inverted J-shaped box, and two springs are fixedly installed between the support plate and the inverted J-shaped box. The springs are sleeved on the outer surface of the corresponding movable rods.

[0008] In the above technical solution, the irregularly shaped conductive copper plate has an arc-shaped groove in the middle, the lower right surface of the irregularly shaped conductive copper plate is attached to the upper surface of the support plate, the right end of the irregularly shaped conductive copper plate is provided with an inclined part, and both the front and rear ends of the upper surface of the irregularly shaped conductive copper plate are integrally formed with L-shaped parts, and the L-shaped parts are located outside the inverted J-shaped box.

[0009] In the above technical solution, the upper surface of the tray is provided with an arc-shaped groove, and the bottom right side of the inclined part is located at the left edge of the arc-shaped groove.

[0010] In the above technical solution, a window is provided through the left surface of the inverted J-shaped box, and the detection line passes through the window.

[0011] In the above technical solution, a connecting plate is fixedly installed between the lower ends of the two movable rods.

[0012] The present invention provides a high-altitude connection test clip for power testing, which, compared with the prior art, has the following advantages:

[0013] This invention optimizes the high-altitude cable inspection process by incorporating an insulating auxiliary wheel, a T-shaped insulating plate, a non-circular conductive copper plate, a movable column, a spring, and a support plate with an arc groove. This significantly improves the efficiency and reliability of the inspection connection while reducing the intensity of manual operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the tray of this utility model when used with a cable.

[0016] Figure 3 This is a schematic diagram of the structure of the insulating auxiliary wheel of this utility model when used with a cable.

[0017] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0018] Figure 5 This is a schematic diagram of the connecting plate structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the conductive copper plate structure of this utility model.

[0020] Figure 7 This is a schematic diagram of the inverted J-shaped box of this utility model.

[0021] Figures 1-7 Among them: 1. Inverted J-shaped box; 11. T-shaped insulating plate; 12. Window; 2. Insulating wheel; 3. Movable rod; 31. Connecting plate; 32. Spring; 4. Irregularly shaped conductive copper plate; 41. Inclined part; 42. L-shaped part; 43. Detection line; 5. Support plate; 51. Arc groove. 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] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-7 This utility model provides a technical solution:

[0024] A power test high-altitude connection test clamp includes an inverted J-shaped box 1. A support rod is screwed onto the lower surface of the inverted J-shaped box 1. The support rod is composed of multiple hollow splicing rods. The top outer surface of the splicing rod is provided with external threads, and the bottom inner surface of the splicing rod is provided with internal threads. The internal and external threads are mutually compatible. Multiple splicing rods can be connected end to end through the cooperation of internal and external threads to increase the total length of the support rod. The topmost splicing rod is screwed onto the lower surface of the inverted J-shaped box 1 through external thread.

[0025] Combination Figure 2 , Figure 3 or Figure 4 As shown, at least two insulating wheels 2 are rotatably installed on the right side of the inverted J-shaped box 1. The two insulating wheels 2 are in the same horizontal position. When the test clamp changes the experimental position of the cable as a whole, the insulating wheels 2 can be used to hang on the cable for movement, avoiding the laborious operation of lifting the test clamp as a whole, making it more labor-saving and convenient to test the cable at multiple points.

[0026] Combination Figure 2 , Figure 3 or Figure 4 As shown, a T-shaped insulating plate 11 is fixedly installed inside the inverted J-shaped box 1. Two movable rods 3 are slidably installed through the inside of the inverted J-shaped box 1. The movable rods 3 are insulating rods. A connecting plate 31 is fixedly installed between the lower ends of the two movable rods 3 by bolts. A special-shaped conductive copper plate 4 is fixedly installed between the top ends of the two movable rods 3. The special-shaped conductive copper plate 4 has an arc shape in the middle. An inclined part 41 is provided at the right end of the special-shaped conductive copper plate 4. An L-shaped part 42 is integrally formed at both the front and rear ends of the upper surface of the special-shaped conductive copper plate 4. The L-shaped part 42 is located outside the inverted J-shaped box 1. When the cable enters the inverted special-shaped conductive copper plate 4, the L-shaped part 42 can prevent the cable from moving excessively to the left, so that it can fit with the T-shaped insulating plate 11 under the support of the special-shaped conductive copper plate 4. The inclined part 41 is set to guide the cable so that it can smoothly enter the special-shaped conductive copper plate 4.

[0027] A support plate 5 is fixedly installed between the two movable rods 3. The inclined portion 41 of the irregularly shaped conductive copper plate 4 is attached to the upper surface of the support plate 5. The left end of the support plate 5 extends to the outside of the inverted J-shaped box 1. A spring 32 is fixedly installed between the lower surface of the support plate 5 and the inner surface of the inverted J-shaped box 1. Two springs 32 are assembled, and the two springs 32 are respectively located on the outside of the corresponding movable rods 3. The springs 32 are used to drive the movable rods 3 and the irregularly shaped conductive copper plate 4 to move upward and reset, clamping the cable between the irregularly shaped conductive copper plate 4 and the T-shaped insulating plate 11. The function of the support plate 5 is to enable the operation The operator lifts the support plate 5 under the cable using the support rod on the ground, causing the spring 32 to contract and move the irregularly shaped conductive copper plate 4 downward to ensure that the cable can enter the irregularly shaped conductive copper plate 4. When the irregularly shaped conductive copper plate 4 has moved to a position where the cable can enter, the movable rod 3 drives the inverted J-shaped box 1 to move towards the cable, so that the cable can smoothly enter the irregularly shaped conductive copper plate 4 along the guide of the inclined part 41. Then the lifting force on the support rod and the inverted J-shaped box 1 is released, the spring 32 returns to its original position, and the cable is clamped between the irregularly shaped conductive copper plate 4 and the T-shaped insulating plate 11.

[0028] A terminal block is fixedly installed on the left surface of the irregularly shaped conductive copper plate 4. An external test line 43 is fixedly installed inside the terminal block by bolts. A window 12 is opened through the left surface of the inverted J-shaped box 1. The external test line 43 passes through the window 12. When testing the cable, the external test line 43 can be electrically connected to an external testing device to test the cable.

[0029] Finally, when lifting the support plate 5, in order to prevent the cable from slipping between the support plate 5 and the support plate 5 and affecting the operation, an arc groove 51 is provided on the upper surface of the support plate 5. The bottom right side of the inclined part 41 is located at the left edge of the arc groove 51. When lifting, the inner surface of the arc groove 51 can be pre-fitted with the outer surface of the cable to prevent slippage. At the same time, when the cable is inserted into the irregular conductive copper plate 4, the cooperation between the inclined part 41 and the arc groove 51 can be used to make the cable easily enter the irregular conductive copper plate 4.

[0030] When conducting high-altitude cable inspections for power testing, multiple splicing rods with compatible internal and external thread structures are first spirally assembled to extend the length of the support rod. These rods are then fixed to the bottom of the inverted J-shaped box 1 via threaded connections. Subsequently, the operator holds the support rod and uses the insulated auxiliary wheel 2 mounted on the right side of the inverted J-shaped box 1 to suspend the test clip above the target cable. The test clip is moved to the designated inspection point by the insulated auxiliary wheel rolling along the cable. The application of the insulated auxiliary wheel 2 effectively reduces the vertical lifting load during the inspection point adjustment process, improving the convenience and safety of the test clip movement.

[0031] Upon reaching the designated testing position, the support rod is manipulated on the ground to adjust the spatial position of the tray 5, ensuring the cable accurately falls into the positioning arc-shaped groove 51 on the surface of the tray 5. Then, by continuously applying force to push the support rod upwards, the cable compresses the spring 32 installed between the tray 5 and the inner wall of the inverted J-shaped box 1, driving the tray 5 to move the movable insulating rod 3 and the irregularly shaped conductive copper plate 4 downwards simultaneously. The arc-shaped groove 51 fits tightly against the outer surface of the cable. Once the irregularly shaped conductive copper plate 4 has descended to the preset working position, the support rod is operated again to push the inverted J-shaped box 1 towards the cable. The cable smoothly slides into the conductive area inside the irregularly shaped conductive copper plate 4 along the inclined guide part 41. At this time, the L-shaped limiting parts 42 on both sides of the copper plate form a mechanical barrier to prevent the cable from laterally detaching. After the cable is in place, the force on the support rod is removed, the spring 32 returns to its original deformation, and the resulting restoring force firmly clamps the cable between the irregularly shaped conductive copper plate 4 and the T-shaped insulating plate 11, establishing a reliable electrical contact interface. Finally, connect the external test line 43 to an external professional testing instrument to perform the measurement of the cable's electrical parameters.

[0032] The test clamp integrates an insulated pulley guide system, a spring pre-tightening clamping mechanism, and an arc-shaped positioning groove, significantly optimizing the high-altitude cable inspection process. While reducing the intensity of manual operation, it greatly improves the efficiency and reliability of the inspection connection.

Claims

1. A high-position connection test clamp for power test, comprising a reverse J-shaped box (1), a supporting rod is fixedly installed on the lower surface of the reverse J-shaped box (1), characterized in that, At least two insulating auxiliary wheels (2) are rotatably mounted on the right surface of the inverted J-shaped box (1). A T-shaped insulating plate (11) is fixedly installed inside the inverted J-shaped box (1), and two movable rods (3) are slidably installed through the inverted J-shaped box (1). A non-circular conductive copper plate (4) is fixedly installed between the upper surfaces of the two movable rods (3). The non-circular conductive copper plate (4) and the T-shaped insulating plate (11) are used together to clamp and position the cable to be tested. A terminal is fixedly installed on the left surface of the non-circular conductive copper plate (4), and a test line (43) is fixedly installed inside the terminal. A support plate (5) is fixedly installed between the two movable rods (3). The support plate (5) is located below the non-circular conductive copper plate (4). The right end of the support plate (5) extends outside the inverted J-shaped box (1), and two springs (32) are fixedly installed between the support plate (5) and the inverted J-shaped box (1). The springs (32) are sleeved on the outer surface of the corresponding movable rod (3).

2. The power test high-altitude connection test clamp according to claim 1, characterized in that, The irregularly shaped conductive copper plate (4) has an arc-shaped groove in the middle. The lower right surface of the irregularly shaped conductive copper plate (4) is attached to the upper surface of the support plate (5). The right end of the irregularly shaped conductive copper plate (4) is provided with an inclined part (41). The front and rear ends of the upper surface of the irregularly shaped conductive copper plate (4) are integrally formed with an L-shaped part (42). The L-shaped part (42) is located outside the inverted J-shaped box (1).

3. A high location connection test clamp for electrical power testing according to claim 2, wherein, The upper surface of the tray (5) is provided with an arc-shaped groove (51), and the bottom right side of the inclined part (41) is located at the left edge of the arc-shaped groove (51).

4. The high placement test clamp for power testing according to claim 1, wherein, A window (12) is provided through the left surface of the inverted J-shaped box (1), and the detection line (43) passes through the window (12).

5. The high placement test clamp for power testing according to claim 1, wherein, A connecting plate (31) is fixedly installed between the lower ends of the two movable rods (3).

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