A lightning arrester detector operating tool

Abstract

This utility model discloses an operating tool for a surge arrester tester, including an insulated telescopic rod, an Arri gear seat, and a guide frame. The bottom of the Arri gear seat is fixedly connected to the top of the insulated telescopic rod, and the top of its rotating disk is fixedly connected to the guide frame. A pull-wire handle is fixedly connected to the bottom of the insulated telescopic rod, and a gripper mechanism is fixedly connected to the top center of the guide frame. The gripper mechanism is connected to the pull-wire handle via a pull wire, and a pull-wire sleeve is provided over the pull wire. The advantages are that the overall size of the testing tool is small and easy to carry. The insulated telescopic rod can be shortened and extended, and with the guide frame, it can be quickly positioned and placed on a discharge counter, facilitating subsequent live-line testing. The testing work is more convenient and faster, and the operation is simple, eliminating the need for personnel to climb to heights and reducing the risks of testing operations.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary tools for power equipment maintenance, and specifically relates to an operating tool for a surge arrester tester. Background Technology

[0002] Surge arresters are frequently used in power equipment. A discharge counter is connected in series at the bottom of the surge arrester to record the number of times the surge arrester operates and to understand the patterns of lightning activity.

[0003] Currently, surge arresters need to undergo at least one live-line test before the rainy season each year. The electrical performance of the surge arrester is tested using a zinc oxide surge arrester resistive tester. One end of the current test lead needs to be connected to the current test terminal of the instrument, and the other end needs to be clamped onto the discharge counter using alligator clamps. Because the discharge counter is installed at a high position and is energized, the connection operation during the live-line test of the surge arrester is very inconvenient. It requires personnel to wear insulated clothing and work at height, which is cumbersome, inefficient, and risky. Utility Model Content

[0004] The purpose of this utility model is to provide an operating tool for a surge arrester tester, so as to solve the problems of inconvenience, cumbersome operation, low work efficiency and high operation risk when conducting live surge arrester tests in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is: an operating tool for a surge arrester tester, comprising an insulating telescopic rod, an Arri gear seat, and a guide frame. The bottom of the Arri gear seat is fixedly connected to the top of the insulating telescopic rod, and the top of its rotating disk is fixedly connected to the guide frame. The bottom of the insulating telescopic rod is fixedly connected to a pull wire handle, and the top middle position of the guide frame is fixedly connected to a gripper mechanism. The gripper mechanism is connected to the pull wire handle via a pull wire, and a pull wire sleeve is provided over the pull wire.

[0006] Preferably, the gripper mechanism includes a first clamp and a second clamp that are movably connected by a positioning pin. The positioning pin is fixedly connected to the top center of the guide frame. The first clamp and the second clamp are engaged with each other by gears. The inner sides of the first clamp and the second clamp are provided with torsion spring fixing seats. A torsion spring is fixedly connected to the positioning pin, and the other end of the torsion spring is fixed in the torsion spring fixing seat. The top of the first clamp is provided with a pull wire fixing seat. One end of the pull wire is fixedly connected to the pull wire fixing seat, and the other end is fixedly connected to the pull wire handle. A fixing nut is threaded onto the first clamp. A current test wire is clamped between the fixing nut and the first clamp. Clamping heads are fixedly connected to the bottom of the first clamp and the second clamp. The first clamp, the second clamp, the fixing nut, the current test wire, and the clamping heads are all conductors.

[0007] Preferably, a limiting plate is fixedly connected to the end of the second clamp, and a first roller and a second roller are fixedly connected to both ends of the limiting plate, respectively.

[0008] Preferably, the pull cable handle includes a fixed base and a pull cable handle fixedly connected thereto. The fixed base is fitted onto the bottom of the insulated telescopic rod. A spring pin is threadedly connected to one side of the fixed base. A pull cable channel is provided inside the fixed base. One end of the pull cable is fixed to the pull cable fixed base, and the other end passes through the pull cable channel and extends to one side of the fixed base. A through hole adapted to the spring pin is provided inside the pull cable handle. A tensioning wheel is provided at the bottom of the through hole. The tensioning wheel is rotatably connected to the pull cable handle. A groove is provided inside the tensioning wheel. An adjusting nut that mates with the tensioning wheel is threadedly connected to the pull cable handle. One end of the adjusting nut is located on the outside of the pull cable handle, and the other end is fixedly connected to an adjusting boss adapted to the groove.

[0009] Preferably, the side wall of the clamp head is provided with anti-slip protrusions.

[0010] Preferably, the guide frame has a "U" shaped structure, with symmetrical right angles on both sides of the guide frame and a guide rod at the end of the guide frame.

[0011] The advantages of this utility model are: 1. The inspection tool is small in size and easy to carry. It can be shortened and extended by the insulated telescopic rod. With the guide frame, it can be quickly positioned and placed on the discharge counter for convenient subsequent live testing. 2. The guide frame and the insulating telescopic rod are connected by an Arai gear seat, which facilitates the angle adjustment of the guide frame, increases the application range of the inspection tool, and can be used for live detection of discharge counters at different angles; 3. The first clamp and the second clamp are connected by a positioning pin and are equipped with a torsion spring on their backs. Under the action of the torsion spring, the first clamp and the second clamp remain in a clamping state in the initial state. When live testing is required, the opening and closing of the first clamp and the second clamp are controlled by the pull cable handle. Under the action of the two clamps, they can be firmly clamped at the detection position of the discharge counter. The first clamp, the second clamp, the fixing nut, the current test line and the clamp head are all conductors. The current test line is fixed on the first clamp by the fixing bolt and the other end of the current test line is connected to the testing instrument. The testing work is more convenient and faster, and the operation is simple. It does not require the staff to climb to a height and reduces the risk of the testing operation. 4. The pull cable handle is equipped with a tension wheel and a spring pin. The tension wheel fixes the pull cable. When the insulated telescopic rod retracts, the tension wheel is loosened by adjusting the nut, and the pull cable is pulled to retract the pull cable handle and the clamp mechanism. When performing live testing with the insulated telescopic rod extended, the tension wheel fixes the pull cable. The operator holds the pull cable handle and presses the spring pin to press the pull cable in the pull cable channel into the through hole. The pull cable retracts, opening the first and second clamps to complete the pull cable operation. The operation is convenient and does not require the operator to climb to a height. It is only necessary to use the guide frame to align the clamp mechanism with the discharge counter, and then clamp the first and second clamps at the detection position of the current counter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the guide frame and gripper mechanism of this utility model.

[0014] Figure 3 This is a schematic diagram of the mechanism by which the guide mechanism, Arri gear seat, and gripper mechanism of this utility model cooperate.

[0015] Figure 4 This is an enlarged structural schematic diagram of the gripper mechanism of this utility model.

[0016] Figure 5 This is a rear-view enlarged structural schematic diagram of the gripper mechanism of this utility model.

[0017] Figure 6 This is a three-dimensional structural diagram of the gripper mechanism of this utility model.

[0018] Figure 7 This is a schematic diagram of the structure of the pull cable handle of this utility model.

[0019] Figure 8 This utility model Figure 5 A magnified schematic diagram of part A in the middle.

[0020] Figure 9 This utility model Figure 7 A magnified schematic diagram of part B in the middle section.

[0021] The meanings of the reference numerals in the attached figures are as follows: 1. Insulated telescopic rod; 2. Arai gear seat; 3. Guide frame; 4. Pull cable handle; 5. Pull cable; 6. Pull cable sleeve; 7. Positioning pin; 8. First clamp; 9. Second clamp; 10. Gear; 11. Torsion spring fixing seat; 12. Torsion spring; 13. Pull cable fixing seat; 14. Fixing nut; 15. Current test wire; 16. Clamp head; 17. Limiting plate; 18. First roller; 19. Second roller; 20. Fixing seat; 21. Pull cable handle; 22. Spring pin; 23. Pull cable channel; 24. Through hole; 25. Tensioning wheel; 26. Groove; 27. Adjusting nut; 28. Adjusting boss; 29. ​​Anti-slip protrusion; 30. Limiting right angle; 31. Guide rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 9 The surge arrester tester operating tool shown includes an insulating telescopic rod 1, an Arri gear seat 2, and a guide frame 3. The bottom of the Arri gear seat 2 is fixedly connected to the top of the insulating telescopic rod 1, and the top of its rotating disk is fixedly connected to the guide frame 3. The bottom of the insulating telescopic rod 1 is fixedly connected to a pull wire handle 4, and the top middle position of the guide frame 3 is fixedly connected to a gripper mechanism. The gripper mechanism is connected to the pull wire handle 4 through a pull wire 5, and the pull wire 5 is covered with a pull wire sleeve 6.

[0024] To facilitate faster and more convenient clamping of the conductive parts of the discharge counter, the clamping mechanism includes a first clamp 8 and a second clamp 9 movably connected by a positioning pin 7. The positioning pin 7 is fixedly connected to the top center of the guide frame 3. The first clamp 8 and the second clamp 9 are engaged with a gear 10. Torsion spring fixing seats 11 are provided on the inner sides of the first clamp 8 and the second clamp 9. A torsion spring 12 is fixedly connected to the positioning pin 7, and the other end of the torsion spring 12 is fixed inside the torsion spring fixing seat 11. A pull wire fixing seat 13 is provided on the top of the first clamp 8. One end of the pull wire 5 is fixedly connected to the pull wire fixing seat 13, and the other end is fixedly connected to the pull wire handle 4. A fixing nut 14 is threaded onto the first clamp 8. A current test wire 15 is clamped between the fixing nut 14 and the first clamp 8. Clamping heads 16 are fixedly connected to the bottom of the first clamp 8 and the second clamp 9. The first clamp 8, the second clamp 9, the fixing nut 14, the current test lead 15, and the clamp chuck 16 are all conductors. In the initial state, under the action of the torsion spring 12, the first clamp 8 and the second clamp 9 are in a closed state, and the two clamp chucks 16 are in contact. When it is necessary to test the discharge counter with live power, the opening and closing of the first clamp 8 and the second clamp 9 is controlled by operating the pull handle 4 at the bottom of the insulating telescopic rod 1. When the pull wire 5 is pulled, the first clamp 8 and the second clamp 9 open, and are hung on the support plate on which the discharge counter is installed through the guide frame 3. The first clamp 8 and the second clamp 9 are clamped in the conductive position of the discharge counter, and the other end of the current test lead 15 is connected to the testing instrument. The live testing work can then begin. The testing work is more convenient and faster, and the operation is simple. It does not require the staff to climb to a height, reducing the risk of the testing work.

[0025] To prevent the first clamp 8 from opening too wide and exceeding the meshing range of the gear 10, a limiting plate 17 is fixedly connected to the end of the second clamp 9. The two ends of the limiting plate 17 are respectively fixedly connected to a first roller 18 and a second roller 19. When the first clamp 8 opens too wide, the first roller 18 and the second roller 19 on the limiting plate 17 will block the first clamp 8 from opening further and limit it, effectively ensuring the normal use of the first clamp 8 and the second clamp 9.

[0026] To facilitate the control of the opening and closing of the first clamp 8 and the second clamp 9 by the pull cable 5, and to ensure the retraction of the pull cable 5 after the insulated telescopic rod 1 is retracted, the pull cable handle 4 includes a fixed base 20 and a pull cable handle 21 fixedly connected thereto. The fixed base 20 is fitted onto the bottom of the insulated telescopic rod 1, and a spring pin 22 is threaded onto one side of the fixed base 20. The fixed base 20 has a pull cable channel 23. One end of the pull cable 5 is fixed to the pull cable fixed base 13, and the other end passes through the pull cable channel 23 and extends to one side of the fixed base 20. The pull handle 21 has a through hole 24 that matches the spring pin 22. When it is necessary to pull the first clamp 8 and the second clamp 9, the spring pin 22 is pressed and inserted into the through hole 24. During the insertion process, the spring pin 22 will drive the pull cable 5 to move into the through hole 24. At this time, the pull cable 5 retracts, which can drive the first clamp 8 and the second clamp 9 to open. When the spring pin 22 is pulled out, the pull cable 5 extends again. Under the action of the torsion spring 12, the first clamp 8 and the second clamp 9 close. The clamp heads 16 are brought together again. A tensioning wheel 25 is located at the bottom of the through hole 24. The tensioning wheel 25 is rotatably connected to the cable handle 21. A groove 26 is provided inside the tensioning wheel 25. An adjusting nut 27 that mates with the tensioning wheel 25 is threaded onto the cable handle 21. One end of the adjusting nut 27 is located on the outside of the cable handle 21, and the other end is fixedly connected to an adjusting boss 28 that matches the groove 26. When it is necessary to fix the cable 5, the adjusting nut 27 is rotated, and the other end of the adjusting nut 27 adjusts... The boss 28 engages with the groove 26 inside the tensioning wheel 25, causing the tensioning wheel 25 to rotate. The bottom of the tensioning wheel 25 fits into the pull cable channel 23, firmly fixing the pull cable 5 inside the pull cable channel 23, facilitating the stretching and contraction of the pull cable 5. When the insulating telescopic rod 1 is retracted, the pull cable 5 between the pull cable handle 21 and the gripper mechanism is difficult to store. At this time, it is only necessary to rotate the adjusting nut 27 again, and after the tensioning wheel 25 is loosened, the staff can manually pull the pull cable 5 out from the pull cable channel 23, and wind the pull cable 5 for easy storage.

[0027] To prevent the clamp 16 from loosening or falling off when it is clamped on the discharge counter, anti-slip protrusions 29 are provided on the side wall of the clamp 16.

[0028] To facilitate the positioning of the gripper head, the guide frame 3 has a "U" shaped structure. The two sides of the guide frame 3 are symmetrically provided with limiting right angles 30, and the end of the guide frame 3 is provided with a guide rod 31. The limiting right angles 30 of the guide frame 3 can be placed against the support plate at the bottom of the discharge counter. At the same time, the guide rod 31 facilitates the movement of the guide frame 3.

[0029] The working process of this utility model is as follows: First, in the initial state, the insulating telescopic rod 1 is in a retracted state, and the first clamp 8 and the second clamp 9 of the gripper mechanism are in a closed state, with the clamp heads 16 fitting together. The tension wheel 25 inside the pull cable handle is in a relaxed state, and the pull cable 5 is wound and stored at the bottom of the pull cable handle 21. Second, when it is necessary to perform live testing on the electrical performance of the surge arrester, the insulating telescopic rod 1 is stretched to the required length, the pull cable 5 is taken out of the storage bag, straightened, and then the adjusting nut 27 is rotated. The adjusting boss 28 at the bottom of the adjusting nut 27 drives the tension wheel 25 to rotate. The bottom fits snugly against the inner wall of the cable channel 23, firmly securing the cable 5 within the channel 23. Once the cable 5 is securely fixed, the guide frame 3 at its top is adjusted to a suitable angle using the Arri gear seat 2, and the guide rod 31 of the guide frame 3 is used to hang it on the discharge counter. The limiting right angle 30 rests precisely against the support plate at the bottom of the discharge counter. At this point, the operator presses the spring pin 22, inserting it into the through hole 24. During insertion, the spring pin 22 moves the cable 5 within the through hole 24, causing the cable 5 to retract, which in turn opens the first clamp 8 and the second clamp 9. Clamp 9 is positioned at the conductive position of the discharge counter. After observing that the first clamp 8 and second clamp 9 are in place, the operator can pull out the spring pin 22, extending the pull wire 5. Under the action of the torsion spring 12, the first clamp 8 and second clamp 9 close, precisely clamping the conductive position of the discharge counter. The current test lead 15 is then fixed between the fixing nut 14 and the first clamp 8, and the other end is connected to the testing instrument, allowing the live-line testing to begin. After the live-line testing is completed, the spring pin 22 is pressed again, the pull wire 5 retracts again, the first clamp 8 and second clamp 9 open, and the insulating telescopic rod 1 is pushed upwards to allow the inspection tool to be moved. Remove the tool from the discharge counter and then check another discharge counter that needs to be tested for liveness. Finally, after all liveness tests are completed, pull out the spring pin 22, the first clamp 8 and the second clamp 9 close, the two clamp jaws 16 fit together, rotate the adjusting nut 27, the tension wheel 25 rotates, the pull wire 5 can be pulled in the pull wire channel 23, and the insulating telescopic rod 1 is retracted together, the pull wire 5 is pulled out from the pull wire channel 23, and the pull wire 5 is wound up and put into the storage bag for easy carrying of the inspection tool. The inspection work is more convenient and faster, the operation is simple, and there is no need for staff to climb to heights, reducing the risk of inspection work.

[0030] The above description is only a preferred embodiment of the present utility model. The technical solution of the present utility model is not limited thereto. It should be noted that for those skilled in the art, under the technical teachings provided by the present utility model and as common knowledge in the field, other equivalent modifications and improvements can be made, which should also be considered within the protection scope of the present utility model.

Claims

1. A surge arrester testing instrument operating tool, characterized in that: The device includes an insulated telescopic rod (1), an Arri gear seat (2), and a guide frame (3). The bottom of the Arri gear seat (2) is fixedly connected to the top of the insulated telescopic rod (1), and the top of its rotating disk is fixedly connected to the guide frame (3). The bottom of the insulated telescopic rod (1) is fixedly connected to a pull wire handle (4), and the top middle position of the guide frame (3) is fixedly connected to a gripper mechanism. The gripper mechanism is connected to the pull wire handle (4) through a pull wire (5), and the pull wire (5) is covered with a pull wire sleeve (6).

2. The surge arrester testing instrument operating tool as described in claim 1, characterized in that: The gripper mechanism includes a first clamp (8) and a second clamp (9) movably connected by a positioning pin (7). The positioning pin (7) is fixedly connected to the top center of the guide frame (3). The first clamp (8) and the second clamp (9) are engaged together by a gear (10). The inner sides of the first clamp (8) and the second clamp (9) are provided with torsion spring fixing seats (11). A torsion spring (12) is fixedly connected to the positioning pin (7). The other end of the torsion spring (12) is fixed in the torsion spring fixing seat (11). The top of the first clamp (8) is provided with... There is a pull wire fixing seat (13), one end of the pull wire (5) is fixedly connected to the pull wire fixing seat (13), and the other end is fixedly connected to the pull wire handle (4). A fixing nut (14) is threadedly connected to the first clamp (8). A current test wire (15) is clamped between the fixing nut (14) and the first clamp (8). A clamp head (16) is fixedly connected to the bottom of the first clamp (8) and the second clamp (9). The first clamp (8), the second clamp (9), the fixing nut (14), the current test wire (15) and the clamp head (16) are all conductors.

3. The surge arrester testing instrument operating tool as described in claim 2, characterized in that: The end of the second clamp (9) is fixedly connected to a limiting plate (17), and the two ends of the limiting plate (17) are respectively fixedly connected to a first roller (18) and a second roller (19).

4. The surge arrester testing instrument operating tool as described in claim 3, characterized in that: The pull handle (4) includes a fixed base (20) and a pull handle (21) fixedly connected thereto. The fixed base (20) is fitted onto the bottom of the insulating telescopic rod (1). A spring pin (22) is threaded onto one side of the fixed base (20). A pull channel (23) is provided inside the fixed base (20). One end of the pull line (5) is fixed to the pull line fixed base (13), and the other end passes through the pull channel (23) and extends to one side of the fixed base (20). The pull handle (21) is provided with... A through hole (24) adapted to the spring pin (22) is provided at the bottom of the through hole (24), and a tension wheel (25) is provided at the bottom of the through hole (24). The tension wheel (25) is rotatably connected to the pull handle (21). A groove (26) is provided in the tension wheel (25). An adjusting nut (27) that cooperates with the tension wheel (25) is threaded on the pull handle (21). One end of the adjusting nut (27) is located on the outside of the pull handle (21), and the other end is fixedly connected to an adjusting boss (28) that is adapted to the groove (26).

5. The surge arrester testing instrument operating tool as described in claim 4, characterized in that: The side wall of the clamp chuck (16) is provided with anti-slip protrusions (29).

6. The surge arrester tester operating tool as described in claim 5, characterized in that: The guide frame (3) has a "U" shaped structure. The two sides of the guide frame (3) are symmetrically provided with limiting right angles (30), and the end of the guide frame (3) is provided with a guide rod (31).

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