Auxiliary wiring tool for insulation detection of electric power circuit

Abstract

The utility model relates to the technical field of power equipment, in particular to an auxiliary wiring tool for insulation detection of a power line. The device comprises two groups of holding and placing racks, chucks, butt joint cylinders, power connection terminals and wires, the power connection terminals are installed in the butt joint cylinders, the wires penetrate through the butt joint cylinders and are connected with the power connection terminals made of conductive materials, the other ends of the wires are connected with a megohmmeter, the butt joint cylinders are slidably connected to the side portions of the holding and placing racks, the chucks are installed on the holding and placing racks, cables are clamped between the holding and placing racks and the chucks, and the holding and placing racks are connected with the megohmmeter. The power connection terminal can abut against the end portion of the cable. The two holding and placing frames and the chucks are used for clamping the two ends of a cable and limiting the end position of the cable respectively, then the two power connection terminals are controlled to be in butt joint with the two ends of the cable with the large diameter respectively, at the moment, the butt joint cylinder can be arranged on the outer side of the end of the cable in a sleeving mode, the power connection terminals and the end of the cable are stably connected together in an abutting mode, and the hands of an operator are released; therefore, the megohmmeter of the megohmmeter can be operated conveniently, and the comfort and the safety of the testing process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to an auxiliary wiring tool for insulation detection of electric power lines. Background Art

[0002] Power line insulation testing can timely discover potential safety hazards in the power system, such as aging, damage or partial discharge of the insulation layer. By promptly repairing the defects of the insulation layer, energy loss can be reduced and the efficiency of the power system can be improved.

[0003] Usually, a megohmmeter with a built-in generator is used to detect the insulation performance of power lines. Specifically, the handle on the side of the megohmmeter is shaken to generate a high voltage inside the megohmmeter. The high voltage is applied to both ends of the insulator to be tested, so that a current is generated in the insulator to be tested. The resistance value of the insulator is calculated by measuring the current after the voltage is applied, and the insulation is detected.

[0004] The power terminals in the prior art are of an alligator clip structure, which can be clamped on the ends of thinner wires, but cannot be firmly clamped on the ends of thicker cables. As a result, the two power terminals of a handheld megohmmeter need to be connected to the two ends of the cable respectively, which is not convenient and poses a safety hazard. Therefore, the present application provides an auxiliary wiring tool for power line insulation detection. Utility Model Content

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide an auxiliary wiring tool for power line insulation detection, which can more conveniently connect the power terminal with the cable with a thicker diameter, freeing the operator's hands so that the operator can focus on operating the megohmmeter, thereby improving the comfort and safety of the test process.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a power line insulation detection auxiliary wiring tool, comprising two sets of holding frames, a clamp, a butt socket, a power terminal and a conductor.

[0008] The power terminal is installed in the docking sleeve, the wire passes through the docking sleeve and is connected to the power terminal of the conductive material, the other end of the wire is connected to the megohmmeter, the docking sleeve is slidably connected to the side of the holding frame, a clamp is installed on the holding frame, the cable is clamped between the holding frame and the clamp, and the power terminal can abut against the end of the cable.

[0009] Furthermore, a conical inner wall is arranged inside the docking sleeve, and the conical inner wall can abut against the edge of the cable.

[0010] Furthermore, a telescopic driver is installed on the holding frame, and the docking tube is installed on the movable end of the telescopic driver. The telescopic driver can use an electric telescopic rod.

[0011] In order to facilitate the connection of the tool with cables of different diameters, an optional technical solution is that the connection sleeve is made of an elastic insulating material, such as rubber.

[0012] In order to facilitate the connection of the tool with cables of different diameters, another optional technical solution is that the power terminal is a C-shaped sheet structure with elastic deformation capability, such as a thin iron sheet.

[0013] Regarding the installation of the chuck of the present application on the holding frame, an optional technical solution is that the chuck is detachably fixedly installed in the holding frame by fasteners.

[0014] Regarding the installation of the chuck of the present application on the holding rack, another optional technical solution is that the chuck is slidably installed in the holding rack, the top of the chuck is rotatably connected to an adjustment knob, the adjustment knob is engaged with the top cover by a threaded engagement, and the top cover is detachably installed at the top opening of the holding rack.

[0015] Furthermore, two sides of the bottom of the top cover are integrally formed with slide bars, which are slidably engaged with grooves on the outer side of the top of the holding frame.

[0016] Furthermore, the holding frame is provided with two abutment slopes I, and the clamp is provided with two abutment slopes II, and the abutment slopes I and II can abut against the outer surface of the insulation sheath of the cable at the same time.

[0017] Furthermore, a non-slip pad is installed at the bottom of the holding frame.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The auxiliary wiring tool for insulation detection of power lines of the utility model example uses two holding frames and a clamp to clamp the two ends of the cable respectively to limit the end position of the cable, and then controls the two power terminals to respectively connect with the two ends of the cable with a thicker diameter. At this time, the docking sleeve can be sleeved on the outside of the end of the cable, so that the power terminal and the end of the cable are stably abutted together, freeing the operator's hands so that the operator can focus on operating the megohmmeter, thereby improving the comfort and safety of the test process;

[0020] 2. The auxiliary wiring tool for insulation detection of power lines of the utility model example, the interior of the docking tube is provided with a conical inner wall, and the conical inner wall is used to abut against the edges of cables of different diameters, thereby limiting the end position of the cable, avoiding poor contact of the line due to cable shaking, and increasing the stability of detection;

[0021] 3. The auxiliary wiring tool for power line insulation detection of the utility model example lifts the end of the cable above the placement area through the holding frame, forming an isolation between the end of the cable and the placement area such as the ground or the desktop, thereby increasing the safety during the test;

[0022] 4. In the auxiliary wiring tool for insulation detection of power lines of the utility model, the holding frame and the clamp are respectively provided with two abutment slopes I and two abutment slopes II. The abutment slopes I and II are simultaneously abutted against the outer surface of the insulation skin of the cable to perform all-round limit clamping on the cable, and automatically adjust the position of the cable to align it with the center of the docking tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 A schematic diagram of the structure of the cable and the holding frame provided by the embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of the holding frame, top cover and anti-slip pad provided in an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the telescopic driver and the docking tube provided in the embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the power terminals and wires provided in an embodiment of the utility model.

[0028] In the figure: 1 cable, 11 holding frame, 111 abutting inclined surface I, 12 top cover, 121 slide bar, 13 clamp, 131 abutting inclined surface II, 14 adjustment knob, 15 anti-skid pad, 21 telescopic driver, 22 docking tube, 23 electrical terminal, 24 wire. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0035] Embodiment 1:

[0036] like Figure 1-4 As shown, this embodiment provides an auxiliary wiring tool for insulation detection of power lines, including two groups of holding frames 11, chucks 13, docking sleeves 22, power terminals 23 and wires 24. The power terminals 23 made of iron, cobalt and nickel are installed in the docking sleeves 22. The wires 24 penetrate the docking sleeves 22 and are connected to the power terminals 23. The other end of the wire 24 is connected to a megohmmeter. The docking sleeve 22 is slidably connected to the side of the holding frame 11. An anti-slip pad 15 is installed at the bottom of the holding frame 11 to improve the placement stability of the holding frame 11. A chuck 13 is installed on the holding frame 11. The cable 1 is clamped between the holding frame 11 and the chuck 13. The power terminal 23 can abut against the end of the cable 1.

[0037] A telescopic driver 21 is installed on the holding frame 11, and a docking sleeve 22 is installed on the movable end of the telescopic driver 21. The telescopic driver 21 can use an electric telescopic rod. When the telescopic driver 21 is started, the docking sleeve 22 moves toward the holding frame 11, so that the power terminal 23 is connected to the cable 1 with a thicker diameter.

[0038] When the insulation performance of the cable 1 is tested using the power line insulation detection auxiliary wiring tool of the present application;

[0039] First, two ends of the cable 1 are clamped by two holding frames 11 and clamps 13 to limit the end position of the cable 1 and ensure the stability of the test; then, two telescopic drivers 21 are started to drive two power terminals 23 to respectively connect with the two ends of the cable 1 with a thicker diameter. At this time, the docking sleeve 22 is sleeved on the outer side of the end of the cable 1, so that the power terminals 23 and the end of the cable 1 are stably abutted together, freeing the operator's hands so that the operator can focus on operating the megohmmeter, thereby improving the comfort and safety of the test process;

[0040] Finally, the handle on the side of the megohmmeter is shaken to apply a high voltage to both ends of the cable 1 through the two power terminals 23 and the two wires 24. The resistance value of the insulator is calculated by measuring the current after the voltage is applied to detect the insulation.

[0041] In addition, the end of the cable 1 is lifted up on the upper side of the placement area by the holding frame 11, so that the end of the cable 1 is isolated from the placement area such as the ground or a desktop, thereby increasing safety during the test.

[0042] In order to facilitate the cable 1 to be clamped between the holding frame 11 and the clamp 13, as shown in FIG. Figure 2 As shown, two abutment slopes Ⅰ111 are provided on the holding frame 11, and two abutment slopes Ⅱ131 are provided on the clamp 13, so that the abutment slopes Ⅰ111 and the abutment slopes Ⅱ131 can abut against the outer surface of the insulating skin of the cable 1 at the same time, and the cable 1 can be clamped in all directions. During this process, the position of the cable 1 can be automatically adjusted to align the cable 1 with the center of the docking sleeve, and the use effect is good.

[0043] In order to facilitate the connection of the tool with cables 1 of different diameters, Figure 3 As shown, a conical inner wall is provided inside the docking tube 22, and the conical inner wall is used to abut against the edge of the cable 1 of different diameters, thereby limiting the end position of the cable 1, avoiding poor line contact due to shaking of the cable 1, and increasing the stability of detection.

[0044] The butt joint sleeve 22 is made of elastic insulating material, such as rubber; the power terminal 23 is Figure 3As shown, the C-shaped thin iron sheet has the ability of elastic deformation, which improves the effect of connecting with cables 1 of different diameters.

[0045] In this embodiment, the clamp 13 is detachably fixedly installed in the holding frame 11 by means of fasteners.

[0046] Embodiment 2:

[0047] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1-3 As shown, in this embodiment, the chuck 13 is slidably installed in the holding frame 11, and the top of the chuck 13 is rotatably connected to the adjusting knob 14, the adjusting knob 14 is engaged with the top cover 12 through a threaded engagement, and the top cover 12 is detachably installed in the top opening of the holding frame 11.

[0048] Manually rotating the adjusting knob 14 drives the clamp 13 to vertically rise and fall in the holding frame 11 to clamp or loosen the cable 1, thereby shortening the time for disassembling and assembling the tool at the end of the cable 1 and improving the operation efficiency.

[0049] Among them, the bottom sides of the top cover 12 are integrally formed with slide bars 121, which are slidably engaged with the grooves on the top outer side of the holding frame 11, so that the top cover 12 can be quickly disassembled and assembled on the holding frame 11 to clean the entire tool.

[0050] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0051] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the remaining technical features will not be described here in detail.

Claims

1. An auxiliary wiring tool for power line insulation detection, comprising two power terminals (23) connected to wires (24), the power terminals (23) being made of conductive material, the power terminals (23) being in contact with the ends of a cable (1), and the other end of the wires (24) being connected to a megohmmeter, characterized in that: The power connection terminal (23) is connected to a docking sleeve (22) having a conical inner wall. The docking sleeve (22) is slidably connected to the side of a holding frame (11). A clamp (13) is mounted on the holding frame (11). The cable (1) is clamped between the holding frame (11) and the clamp (13).

2. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: A telescopic driver (21) is mounted on the holding frame (11), and a docking sleeve (22) is mounted on a movable end of the telescopic driver (21).

3. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: The clamp (13) is detachably fixedly mounted in the holding frame (11) via a fastener.

4. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: The chuck (13) is slidably mounted in the holding frame (11), the top of the chuck (13) is rotatably connected to an adjusting knob (14), the adjusting knob (14) is engaged with the top cover (12) through a threaded engagement, and the top cover (12) is detachably mounted at the top opening of the holding frame (11).

5. The power line insulation detection auxiliary wiring tool according to claim 4, characterized in that: Slide bars (121) are integrally formed on both sides of the bottom of the top cover (12), and the slide bars (121) are slidably engaged with grooves on the outer side of the top of the holding frame (11).

6. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: The holding frame (11) is provided with two abutment slopes I (111), and the clamp (13) is provided with two abutment slopes II (131). The abutment slopes I (111) and the abutment slopes II (131) can abut against the outer surface of the insulation skin of the cable (1) at the same time.

7. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: The docking sleeve (22) is made of elastic insulating material.

8. The power line insulation detection auxiliary wiring tool according to claim 1, characterized in that: The power connection terminal (23) is a C-shaped sheet structure with elastic deformation capability.

9. The power line insulation detection auxiliary wiring tool according to any one of claims 1 to 8, characterized in that: An anti-skid pad (15) is installed at the bottom of the holding frame (11).

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