Electric power overhaul cable testing device

Abstract

The invention discloses an electric power overhaul cable testing device, which comprises a device main body, a pair of first sliding rails and a pair of main body positioning blocks, and has the beneficial effects that a megohmmeter and a universal meter are stably arranged on the outer side of equipment through a testing displacement arrangement structure, and sliding displacement is convenient; detection personnel can conveniently operate an instrument to complete line detection, and the device can carry out adaptive fixation according to the natural trend of a cable through a bearing, positioning and clamping structure, so that the layout of a main line is preliminarily straightened out.

Description

Technical Field

[0001] The present invention relates to the technical field of power maintenance auxiliary equipment, in particular to a power maintenance cable testing device. Background Art

[0002] Power maintenance is a systematic maintenance task to ensure the safe operation of the power grid, encompassing equipment inspection, troubleshooting, and performance optimization. Maintenance personnel are required to regularly monitor the operating status of core equipment such as transformers and switchgear, inspect transmission lines for potential hazards, and promptly replace aging components. Cable testing is a key step in preventing accidents. Using specialized instruments to examine the insulation performance, conductivity continuity, and signal transmission quality of cables, problems such as aging, damage, or poor contact can be identified in advance. For example, insulation resistance testing can quickly pinpoint leakage risk points, while time-domain reflectometry can precisely locate broken wires, eliminating potential hazards before they occur. However, scattered cables at maintenance sites not only increase maintenance difficulties but can also easily cause insulation damage due to trampling or rolling, leading to secondary accidents such as short circuits and leakage. Standardized cable management is like establishing a "health record" for the power grid, ensuring maintenance efficiency while preventing sudden power outages, extending equipment life, and providing a safety net for urban operations, industrial production, and residential electricity use. While existing solutions may already exist for these issues, this case seeks to provide an alternative or replacement technical solution. Summary of the Invention

[0003] The technical solution of the present invention for achieving the above-mentioned object is as follows: a power maintenance cable test device, comprising: a device body, a pair of first slide rails, and a pair of main body positioning blocks, wherein the pair of first slide rails are respectively mounted on the device body, the pair of main body positioning blocks are respectively mounted on the pair of first slide rails, a pair of supporting positioning clamping structures are respectively mounted on the pair of main body positioning blocks, a test displacement placement structure is mounted on the device body, and the test displacement placement structure comprises: a pair of second slide rails, a pair of first instrument placement frames, and a pair of second instrument placement frames; A pair of second slide rails are respectively mounted on the device body, a pair of first instrument placement frames are respectively mounted on the second slide rails, a pair of second instrument placement frames are respectively mounted on the second slide rails, and a plurality of cooperatively positioned components to be tested are mounted on the device body; It should be noted that, in the above, the test device body is pushed to the detection position by relying on the push-pull handle provided on the device body and the test position placement structure, the cables are arranged in sequence and placed on the device body, and the cable body is fully supported and fixed by a pair of supporting positioning clamping structures. After that, the wire bodies in the cable are completely split and fixed on multiple coordinated positioning components to be tested. The first instrument placement frame and the second instrument placement frame facing the engineer are slid on the second slide rail as needed, so that the first instrument placement frame and the second instrument placement frame are locked and fixed in appropriate positions, and then the megohmmeter and multimeter on the first instrument placement frame and the second instrument placement frame are connected to the cable to be tested (in actual circuit testing, the tester will connect the megohmmeter and the multimeter through They are connected to the circuit under test through special connecting lines. The megohmmeter generates test voltage by hand-cranking, which is specially used to evaluate the insulation performance of the circuit. When operating, you only need to shake the dial at a constant speed to obtain the insulation resistance value. The multimeter is a multi-functional detection tool. By switching the dial range, it can quickly measure the circuit's voltage, current, resistance and other parameters, and detect the conduction status of electronic components. For example, turning the knob to the voltage position can read the real-time voltage value, and switching to the resistance position can determine the on-off status of the component. When these two instruments work together, the megohmmeter ensures the insulation safety of the line, and the multimeter provides precise electrical parameter measurement, which together constitute the basic tool combination for circuit detection). The maintenance tool storage box set in the main body of the device can be used to store a certain amount of commonly used maintenance tools.

[0004] Preferably, the supporting positioning clamping structure comprises: a main body clamping power motor, a transmission gear box, a symmetrical double-threaded threaded rod, a pair of main body clamping modules, a plurality of first buffer connection springs and a pair of main body clamping blocks; The main body clamping power motor is installed in the main body positioning block, the transmission gear box is connected to the main body clamping power motor, the symmetrical double-threaded threaded rod is inserted into the transmission gear box, a pair of the main body clamping modules are respectively movably inserted into the main body positioning block, and a pair of the main body clamping modules are respectively sleeved on the symmetrical double-threaded threaded rod, a plurality of the first buffer connection springs are respectively installed on a pair of the main body clamping modules, a pair of the main body clamping blocks are respectively connected to a plurality of the first buffer connection springs, and a displacement auxiliary shock absorbing component is provided on the device body; It should be noted that, in the above, the main body clamping power motor in the main body positioning block is driven, so that the main body clamping power motor rotates to drive the transmission gearbox to work, and the running transmission gearbox can rotate the symmetrical double-threaded rod, and because a pair of main body clamping modules approach or move away from each other under the rotation of the symmetrical double-threaded rod, the pair of main body clamping blocks can be tightly fitted on the outer surface of the cable that needs to be fixed. At the same time, multiple first buffer connection springs enable the pair of main body clamping blocks to play a certain buffering role while clamping and fixing the cable, and can protect and reinforce the cable. The supporting protection and decompression rubber pads provided on the main body clamping blocks can stably support the cable while preventing the rubber on the outside of the cable from being excessively compressed or deformed, thereby protecting the outer skin of the cable. The pair of main body positioning blocks can be adjusted on the pair of first slide rails according to the direction of the cable, so that the cable is fully fixed without being bent, reducing the risk of cable breakage.

[0005] Preferably, the cooperative positioning component to be tested includes: a branch bearing seat, a connection seat, a semi-arc electromagnetic layer, a hemispherical connection seat, a pair of branch bearing plates, a plurality of second buffer connection springs and a pair of secondary semi-arc plates; The branch bearing seat is installed on the device body, the connection seat is installed on the branch bearing seat, the semi-arc electromagnetic layer is installed on the connection seat, the hemispherical connection seat is movably connected to the semi-arc electromagnetic layer, a pair of branch bearing plates are respectively installed on the hemispherical connection seats, a plurality of second buffer connection springs are respectively installed on the branch bearing plates, and a plurality of second buffer connection springs are respectively connected to a pair of secondary semi-arc plates; It should be noted that, in the above, when the cable body is roughly fixed by a pair of supporting positioning and clamping structures, the small branch cables of multiple branches in the cable still need to be fully specified when they need to be measured. At this time, the small branch cables are respectively inserted between the corresponding pair of secondary semi-arc plates, and the multiple second buffer connection springs will be elastically reset and fully extended, so that the pair of secondary semi-arc plates can fully clamp and fix the small branch cables. After that, the engineer only needs to adjust the pair of branch bearing plates and the hemispherical connection seat that carry the cables. , allowing the hemispherical connector to slide and shift on the connector mounting seat, and the transformer resistor set in the branch bearing mounting seat can convert the high voltage electricity on site into direct current, and generate magnetic force to power the semi-arc electromagnetic layer, thereby firmly adsorbing and fixing the hemispherical connector. At this time, the small branch cable can maintain the degree of inclination according to the needs of the engineer, thereby avoiding the intersection of cables and preventing short circuits and measurement accidents. The insulating protective ceramic layer set on the secondary semi-arc plate can further prevent the cable from leaking during measurement.

[0006] Preferably, the displacement auxiliary shock absorbing assembly comprises: a third buffer connection spring, a device tilting leg and a displacement roller; A plurality of the third buffer connection springs are respectively installed on the device body, and a plurality of the third buffer connection springs are respectively connected to a plurality of the device tilting legs, a plurality of the displacement rollers are respectively installed on a plurality of the device tilting legs via rotating shafts, and a plurality of the device tilting legs are respectively connected to the device body via rotating shafts; It should be noted that, in the above description, when the device is transferred or placed, the displacement roller plays a rolling effect, and the tilting legs of the device cooperate with the third buffer connection spring to play a shock-absorbing support effect and adapt to complex terrain, thereby greatly improving the adaptability and adaptability of the device.

[0007] Preferably, the main body positioning block is provided with a clamping power maintenance port; Preferably, a supporting and protective pressure-reducing rubber pad is provided on the main body clamping block; Preferably, an insulating protective ceramic layer is provided on the secondary semi-arc plate; Preferably, a voltage-changing resistor is provided in the branch bearing seat; Preferably, a maintenance tool storage box is provided in the main body of the device; Preferably, a push-pull handle is provided on the device body.

[0008] Beneficial effects A power maintenance cable testing device made using the technical solution of the present invention, compared with the existing technology: this device firmly places the megohmmeter and multimeter on the outside of the equipment through the test displacement placement structure, and is convenient for sliding displacement, so that the inspection personnel can easily operate the instrument to complete the line inspection. The device can adaptively fix the cable according to the natural direction of the cable through the supporting positioning clamping structure, and preliminarily straighten out the main line layout; for branch thin cables, the independent positioning of multiple cables is achieved by collaboratively positioning the components to be tested. This layered fixing design effectively avoids problems such as cable cross-entanglement, excessive bending or accidental breakage, which not only ensures the cleanliness and orderliness of the working environment, but also significantly reduces safety hazards such as electric shock and short circuit. During the inspection process, technicians can quickly locate the target line and complete accurate measurement of parameters such as insulation resistance, voltage and current without repeatedly arranging cables, which improves the maintenance work efficiency by more than 40%, and at the same time builds a reliable safety protection barrier for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the main structure of a power maintenance cable testing device described in the present invention.

[0010] Figure 2This is a schematic diagram of the top structure of a power maintenance cable testing device described in the present invention.

[0011] Figure 3 This is a schematic diagram of the structure of the cooperatively positioned components to be tested in a power maintenance cable testing device described in the present invention.

[0012] Figure 4 for Figure 1 A partial enlarged schematic diagram of "A".

[0013] Figure 5 for Figure 2 A partial enlarged schematic diagram of "B".

[0014] Figure 6 for Figure 2 A partial enlarged schematic diagram of "C" in the figure.

[0015] In the figure: 1. Device body; 2. First slide rail; 3. Main body positioning block; 4. Second slide rail; 5. First instrument mounting frame; 6. Second instrument mounting frame; 7. Main body clamping power motor; 8. Transmission gear box; 9. Symmetrical double-threaded threaded rod; 10. Main body clamping module; 11. First buffer connection spring; 12. Main body clamping block; 13. Branch bearing mounting seat; 14. Connection mounting seat; 15. Semi-arc electromagnetic layer; 16. Hemispherical connection seat; 17. Branch bearing plate; 18. Second buffer connection spring; 19. Secondary semi-arc plate; 20. Third buffer connection spring; 21. Device tilting leg; 22. Displacement roller. DETAILED DESCRIPTION

[0016] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0017] Example The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-6As shown, a power maintenance cable test device includes: a device body 1, a pair of first slide rails 2 and a pair of main body positioning blocks 3, the pair of first slide rails 2 are respectively installed on the device body 1, the pair of main body positioning blocks 3 are respectively installed on the pair of first slide rails 2, a pair of main body positioning blocks 3 are respectively installed with a pair of supporting positioning clamping structures, the device body 1 is installed with a test displacement placement structure, the test displacement placement structure includes: a pair of second slide rails 4, a pair of first instrument placement frames 5 and a pair of second instrument placement frames 6; the pair of second slide rails 4 are respectively installed on the device body 1, the pair of first instrument placement frames 5 are respectively installed On the second slide rail 4, a pair of second instrument placement frames 6 are respectively installed on the second slide rail 4, and a number of cooperatively positioned components to be tested are installed on the device body 1; the supporting positioning clamping structure includes: a main body clamping power motor 7, a transmission gear box 8, a symmetrical double-threaded threaded rod 9, a pair of main body clamping modules 10, a number of first buffer connection springs 11 and a pair of main body clamping blocks 12; the main body clamping power motor 7 is installed in the main body positioning block 3, the transmission gear box 8 is connected to the main body clamping power motor 7, the symmetrical double-threaded threaded rod 9 is inserted on the transmission gear box 8, and a pair of the main body clamping modules 10 are respectively movable The main body is movably inserted into the main positioning block 3, and a pair of the main body clamping modules 10 are respectively sleeved on the symmetrical double-threaded threaded rod 9, and a number of the first buffer connection springs 11 are respectively installed on a pair of the main body clamping modules 10, and a pair of the main body clamping blocks 12 are respectively connected to a number of the first buffer connection springs 11. A displacement auxiliary shock absorbing component is provided on the main body 1 of the device; the collaborative positioning component to be tested includes: a branch bearing seat 13, a connection seat 14, a semi-arc electromagnetic layer 15, a hemispherical connection seat 16, a pair of branch bearing plates 17, a number of second buffer connection springs 18 and a pair of secondary semi-arc plates 19; the branch bearing The mounting seat 13 is mounted on the device body 1, the connecting mounting seat 14 is mounted on the branch bearing mounting seat 13, the semi-arc electromagnetic layer 15 is mounted on the connecting mounting seat 14, the hemispherical connecting seat 16 is movably connected to the semi-arc electromagnetic layer 15, a pair of branch bearing plates 17 are respectively mounted on the hemispherical connecting seats 16, a plurality of second buffer connecting springs 18 are respectively mounted on the branch bearing plates 17, and a plurality of second buffer connecting springs 18 are respectively connected to a pair of secondary semi-arc plates 19; the displacement auxiliary shock absorbing assembly includes: a third buffer connecting spring 20, a device tilting leg 21 and a displacement roller 22;A plurality of the third buffer connection springs 20 are respectively mounted on the device body 1, and a plurality of the third buffer connection springs 20 are respectively connected to a plurality of the device tilting legs 21. A plurality of the displacement rollers 22 are respectively mounted on a plurality of the device tilting legs 21 via rotating shafts, and a plurality of the device tilting legs 21 are respectively connected to the device body 1 via rotating shafts.

[0018] According to the attached Figure 1-6It is concluded that, through the push-pull handle provided on the device body 1 and relying on the test displacement placement structure, the test device body 1 is pushed to the detection position, the cables are arranged in sequence and placed on the device body 1, and the main body of the cable is fully supported and fixed by a pair of supporting positioning clamping structures. After that, the wire body in the cable is completely split and fixed on multiple cooperatively positioned components to be tested. The first instrument placement frame 5 and the second instrument placement frame 6 on the side facing the engineer are slid on the second slide rail 4 as needed, so that the first instrument placement frame 5 and the second instrument placement frame 6 are locked and fixed in place at appropriate positions, and then the first instrument placement frame 5 and the second instrument placement frame 6 are fixed. The megohmmeter and multimeter on the tester are connected to the cable to be tested (in actual circuit testing, the tester will connect the megohmmeter and multimeter to the circuit to be tested through special connecting lines. The megohmmeter generates test voltage by hand-cranking, which is specially used to evaluate the insulation performance of the line. When operating, you only need to shake the dial at a constant speed to obtain the insulation resistance value. The multimeter is a multi-functional testing tool. By switching the dial range, it can quickly measure the circuit's voltage, current, resistance and other parameters, and detect the conduction status of electronic components. For example, turning the knob to the voltage gear can read the real-time voltage value, and switching to the resistance gear can determine the on-off status of the component. The two instruments work together When working at the same time, the megohmmeter ensures the insulation safety of the circuit, and the multimeter provides accurate electrical parameter measurement, which together constitute a basic tool combination for circuit detection). The maintenance tool storage box provided in the device body 1 can be used to store a certain amount of commonly used maintenance tools; the main body clamping power motor 7 in the main body positioning block 3 is driven to operate the main body clamping power motor 7 to drive the transmission gear box 8 to work, and the operating transmission gear box 8 can rotate the symmetrical double-threaded threaded rod 9, and because a pair of main body clamping modules 10 approach or move away from each other under the rotation of the symmetrical double-threaded threaded rod 9, the pair of main body clamping blocks 12 can be tightly fitted where needed. The outer surface of the fixed cable, at the same time, multiple first buffer connection springs 11 enable the pair of main body clamping blocks 12 to play a certain buffering role while clamping the fixed cable, and can protect and reinforce the cable. The supporting protective decompression pads provided on the main body clamping blocks 12 can stably support the cable while preventing the rubber on the outside of the cable from being excessively compressed or deformed, thereby protecting the cable outer skin. The pair of main body positioning blocks 3 can be adjusted on the pair of first slide rails 2 according to the trend of the cable, so that the cable is fully fixed without being bent, reducing the risk of cable breakage.When the main body of the cable is roughly fixed by a pair of supporting positioning clamping structures, the multiple small branch cables in the cable still need to be fully specified when they need to be measured. At this time, the small branch cables are respectively inserted between the corresponding pair of secondary semi-arc plates 19, and the multiple second buffer connection springs 18 will be reset due to elasticity and fully stretched, so that the pair of secondary semi-arc plates 19 can fully clamp and fix the small branch cables. After that, the engineer only needs to adjust the pair of branch bearing plates 17 and the hemispherical connection seat 16 that carry the cables, so that the hemispherical connection seat 16 slides and shifts on the connection seat 14, and the transformer resistor set in the branch bearing seat 13 can be used on site The high voltage electricity is converted into direct current, which powers the semi-arc electromagnetic layer 15, generating magnetic force, thereby firmly adsorbing and retaining the hemispherical connector 16. At this time, the small branch cables can be tilted according to the engineer's needs, thus avoiding interlacing between cables and preventing short circuits and measurement accidents. The insulating protective ceramic layer provided on the secondary semi-arc plate 19 further prevents cable leakage during measurement. When the device is transferred or placed, the displacement roller 22 has a rolling effect. The device's tilting legs 21 and the third buffer connection spring 20 provide a shock-absorbing support effect and adapt to complex terrain, greatly improving the adaptability and adaptability of the device.

[0019] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A power maintenance cable testing device, comprising: A device body, a pair of first slide rails, and a pair of main body positioning blocks, wherein the pair of first slide rails are respectively mounted on the device body, the pair of main body positioning blocks are respectively mounted on the pair of first slide rails, a pair of supporting positioning clamping structures are respectively mounted on the pair of main body positioning blocks, and a test displacement placement structure is mounted on the device body, characterized in that the test displacement placement structure includes: a pair of second slide rails, a pair of first instrument placement frames, and a pair of second instrument placement frames; A pair of the second slide rails are respectively installed on the device body, a pair of the first instrument placement frames are respectively installed on the second slide rails, a pair of the second instrument placement frames are respectively installed on the second slide rails, and a plurality of cooperatively positioned components to be tested are installed on the device body.

2. A power maintenance cable testing device according to claim 1, characterized in that: The supporting positioning clamping structure includes: a main body clamping power motor, a transmission gear box, a symmetrical double-threaded threaded rod, a pair of main body clamping modules, a plurality of first buffer connection springs and a pair of main body clamping blocks; The main body clamping power motor is installed in the main body positioning block, the transmission gear box is connected to the main body clamping power motor, the symmetrical double-threaded threaded rod is inserted on the transmission gear box, a pair of the main body clamping modules are movably inserted on the main body positioning block, and a pair of the main body clamping modules are respectively sleeved on the symmetrical double-threaded threaded rod, a number of the first buffer connection springs are respectively installed on a pair of the main body clamping modules, a pair of the main body clamping blocks are respectively connected to a number of the first buffer connection springs, and a displacement auxiliary shock absorbing component is provided on the main body of the device.

3. A power maintenance cable testing device according to claim 2, characterized in that: The collaborative positioning component to be tested includes: a branch bearing seat, a connection seat, a semi-arc electromagnetic layer, a hemispherical connection seat, a pair of branch bearing plates, a plurality of second buffer connection springs and a pair of secondary semi-arc mounting plates; The branch bearing seat is installed on the device body, the connecting seat is installed on the branch bearing seat, the semi-arc electromagnetic layer is installed on the connecting seat, the hemispherical connecting seat is movably connected to the semi-arc electromagnetic layer, a pair of branch bearing plates are respectively installed on the hemispherical connecting seats, a number of the second buffer connecting springs are respectively installed on the branch bearing plates, and a number of the second buffer connecting springs are respectively connected to a pair of secondary semi-arc plates.

4. A power maintenance cable testing device according to claim 3, characterized in that: The displacement auxiliary shock absorbing assembly includes: a third buffer connection spring, a device tilting leg and a displacement roller; Several of the third buffer connection springs are respectively installed on the device body, and several of the third buffer connection springs are respectively connected to several of the device tilting legs, several of the displacement rollers are respectively installed on several of the device tilting legs through rotating shafts, and several of the device tilting legs are respectively connected to the device body through rotating shafts.

5. The power maintenance cable testing device according to claim 4, characterized in that: The main body positioning block is provided with a clamping power maintenance port.

6. The power maintenance cable testing device according to claim 5, characterized in that: A supporting, protective and decompression rubber pad is provided on the main body clamping block.

7. The power maintenance cable testing device according to claim 6, characterized in that: An insulating protective ceramic layer is provided on the secondary semi-arc plate.

8. The power maintenance cable testing device according to claim 7, characterized in that: A voltage-changing resistor is arranged in the branch bearing seat.

9. The power maintenance cable testing device according to claim 8, characterized in that: A maintenance tool storage box is provided in the device body.

10. The power maintenance cable testing device according to claim 9, characterized in that: A push-pull handle is provided on the device body.

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