A high-voltage power equipment test auxiliary wiring device

Abstract

This invention discloses an auxiliary wiring device for high-altitude power equipment testing, comprising a pole, a controller, an energy storage device, an electric drive assembly, a pull wire assembly, a clamp head assembly, a wiring rod, and at least one extension rod. The controller and the energy storage device are mounted on the pole. The extension rod is cascaded at the top of the pole, and the wiring rod is hinged to the extension rod at the end. The electric drive assembly is mounted on the extension rod. One end of the pull wire assembly is connected to the electric drive assembly. The clamp head assembly is mounted on the wiring rod and has a fixed end and a movable end, the movable end of which is connected to the other end of the pull wire assembly. The operator can complete the wiring operation from the ground alone without having to climb to a height. The cascaded extension rods are adaptable to wiring scenarios at different heights. The pull wire assembly is used as a flexible transmission mechanism to connect the electric drive assembly and the sliding clamp head, ensuring that the transmission path remains smooth after the clamp head assembly has been adjusted in angle, thus solving the problem of rigid transmission mechanisms easily jamming after angle adjustment.

Description

Technical Field

[0001] This invention relates to the field of auxiliary tools for high-voltage power testing, and in particular to an auxiliary wiring device for testing high-altitude power equipment. Background Technology

[0002] In power systems, high-voltage equipment such as transformers, circuit breakers, and instrument transformers require regular electrical tests, including DC resistance, loop resistance, dielectric loss, and insulation resistance. For equipment with voltage levels of 220kV and above, the height of their terminals above the ground is typically 5-10 meters or even higher. Currently, the following two methods of high-altitude wiring are mainly used: 1. Aerial work platform vehicles or scaffolding: Test personnel use aerial work platforms to manually connect the wires at a high altitude; 2. Traditional manual wiring poles: Ground personnel use fixed-length or simply telescopic insulating poles, manually controlling the opening and closing of the pole end clamps by pulling ropes or levers. However, the above existing technologies have the following drawbacks: 1) Working at heights carries the risk of falls and electric shock, and aerial work platforms are subject to site limitations and are difficult to deploy; 2) Traditional wiring poles have fixed lengths or limited adjustment ranges, requiring multiple specifications and are inconvenient to carry; 3) The clamp heads are mostly fixed angles and cannot be adapted to terminals in different directions such as vertical, horizontal, and diagonal, resulting in an unstable clamping action; 4) Manual control of the jaws opening and closing is difficult due to unstable force, making it hard for a single person to operate and resulting in a low wiring success rate; 5) Insufficient manual clamping force, and inability to remove oxide film from wiring parts, resulting in high contact resistance and affecting the accuracy of test data; 6) The rigid transmission mechanism is prone to jamming after the clamp head rotates, and the insulation design is not perfect, which poses a risk of leakage.

[0003] Therefore, there is an urgent need for an auxiliary wiring device for testing high-altitude power equipment to solve the above problems. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an auxiliary wiring device for testing high-altitude power transformer equipment.

[0005] One embodiment of the present invention provides a technical solution to solve its technical problem: a high-altitude power equipment test auxiliary wiring device, comprising a pole, a control device, an energy storage device, an electric drive assembly, a pull wire assembly, a clamp assembly, a wiring rod, and at least one extension rod; The control devices and energy storage devices are mounted on the pole. The extension rod is cascaded at the top of the upright, and the connecting rod is hinged to the extension rod at the end; The electric drive assembly is mounted on the extension rod; One end of the cable assembly is connected to the electric drive assembly; The clamp head assembly is mounted on the connector rod and has a fixed end and a movable end, with the movable end connected to the other end of the pull wire assembly; The control device is electrically connected to the energy storage device, the electric drive assembly, and the clamp assembly; The electric drive assembly can drive the movable end toward the fixed end via the pull-wire assembly to clamp the component under test when the controller is operated, or the electric drive assembly can drive the movable end away from the fixed end via the pull-wire assembly to release the component under test when the controller is operated.

[0006] As one of the preferred embodiments of the present invention, an axially arranged groove is constructed on the connecting rod, the fixed end is disposed at the end of the connecting rod away from the extension rod, the movable end is slidably disposed in the groove, and a reset member is also provided between the movable end and the connecting rod to provide a driving force for the movable end to move closer to the fixed end.

[0007] As one of the preferred embodiments of the present invention, a guide groove is constructed on the connecting rod and is arranged axially and communicates with the slide groove. A conductive post is provided on the movable end and extends outside the guide groove. The lead wire of the control device is connected to the conductive post.

[0008] As one of the preferred embodiments of the present invention, a first angle adjustment component is provided between the connecting rod and the extension rod located at the end.

[0009] As one of the preferred embodiments of the present invention, the first angle adjustment assembly includes a first hinge lug, a second hinge lug, a screw, a knob, and a hexagonal nut; The first hinge lug is disposed on the connecting rod, and the second hinge lug is disposed on the extension rod located at the end and abuts against the first hinge lug; The screw passes through the first hinge lug and the second hinge lug; The knob is connected to one end of the screw; The hexagonal nut is connected to the other end of the screw.

[0010] As one of the preferred embodiments of the present invention, the high-altitude power equipment test auxiliary wiring device also includes a base, and the bottom of the upright is connected to the base through a second angle adjustment component.

[0011] As one of the preferred embodiments of the present invention, the upright and the extension rod are threadedly connected and / or two adjacent extension rods are connected, and a conductive component is provided between the upright and the extension rod and / or between two adjacent extension rods.

[0012] As one of the preferred embodiments of the present invention, the conductive component includes an aviation socket and an aviation plug, the aviation socket being disposed on one of the upright and the extension rod, and the aviation plug being disposed on the other of the upright and the extension rod.

[0013] As one of the preferred embodiments of the present invention, the controller is provided with a button assembly for controlling the state of the electric drive assembly.

[0014] As one of the preferred embodiments of the present invention, the controller is provided with an interface component for connecting to an external power supply or external device.

[0015] The beneficial effects of this invention are: 1. Operators can control the electric drive assembly from the ground using the control device to drive the clamp head assembly to clamp or release the wiring terminals of high-voltage equipment without having to work at height, thus avoiding the risk of falling and electric shock.

[0016] 2. By cascading multiple extension rods, the length of the device can be extended arbitrarily to adapt to wiring scenarios with different heights from 5 to 15 meters; the connection between the wiring rod and the extension rod is hinged, and combined with the first angle adjustment component, the clamping head assembly can be easily adjusted and locked within the range of 0° to 180°, adapting to wiring terminals in various directions such as vertical, horizontal, and diagonal, ensuring a firm clamping.

[0017] 3. Wiring can be completed by a single person. The electric opening and closing of the jaws is controlled by buttons or remote control. The response is rapid and the clamping force is stable. Compared with the traditional manual wiring method, it greatly shortens the wiring time and improves the testing efficiency.

[0018] 4. A pull-wire assembly (such as Bowden wire) is used as a flexible transmission mechanism to connect the electric drive assembly and the sliding jaw. This ensures that the transmission path remains smooth after the jaw assembly has completed angle adjustment, completely solving the problem of rigid transmission mechanisms easily jamming after angle adjustment. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of a test auxiliary wiring device for high-altitude power equipment; Figure 2 An exploded view of an auxiliary wiring device for testing high-altitude power equipment; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 A cross-sectional view of an auxiliary wiring device for testing high-altitude power equipment; Figure 5 for Figure 4 A magnified view of a portion of region B in the middle. Detailed Implementation

[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0021] In the description of this invention, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1-5 A test auxiliary wiring device for high-altitude power equipment includes a pole 10, a control device 20, an energy storage device 31, an electric drive assembly 32, a pull wire assembly 40, a clamp assembly 50, a wiring rod 60, and at least one extension rod 70. The control device 20 and the energy storage device 31 are mounted on the pole 10; Extension rod 70 is cascaded to the top of upright rod 10, and connecting rod 60 is hinged to extension rod 70 at the end; The electric drive assembly 32 is mounted on the extension rod 70; One end of the cable assembly 40 is connected to the electric drive assembly 32; The clamp assembly 50 is disposed on the wire rod 60 and has a fixed end 51 and a movable end 52, the movable end 52 being connected to the other end of the pull wire assembly 40; The control device 20 is electrically connected to the energy storage device 31, the electric drive assembly 32, and the clamp assembly 50; When the controller 20 is operated, the electric drive assembly 32 can drive the movable end 52 closer to the fixed end 51 via the pull cable assembly 40 to clamp the component under test, or the electric drive assembly 32 can drive the movable end 52 away from the fixed end 51 via the pull cable assembly 40 to release the component under test.

[0025] Reference Figures 1-5 In this embodiment, to achieve rapid connection and signal transmission of electrical connections, the upright 10 and the extension rod 70, and / or two adjacent extension rods 70, are threaded together. A conductive component 90 is provided between the upright 10 and the extension rod 70, and / or two adjacent extension rods 70. Specifically, the conductive component 90 includes an aviation socket 91 and an aviation plug 92. The aviation socket 91 is provided on one of the upright 10 and the extension rod 70, and the aviation plug 92 is provided on the other of the upright 10 and the extension rod 70. When each section of the rod is connected by screwing, the aviation plug 92 and the aviation socket 91 automatically align and plug in, realizing the reliable transmission of control signals and test signals segment by segment, ensuring the continuity and stability of the electrical path.

[0026] Reference Figures 1-5 To enable the clamping head assembly 50 to be electrically controlled and provide a stable clamping force, an axially arranged groove 61 is constructed on the connecting rod 60. The fixed end 51 is located at the end of the connecting rod 60 away from the extension rod 70, and the movable end 52 is slidably disposed in the groove 61. A reset member 62 is also included between the movable end 52 and the connecting rod 60 to provide a driving force for the movable end 52 to move closer to the fixed end 51. Preferably, the electric drive assembly 32 is configured as an electric push rod, and the pull cable assembly 40 is configured as a Bowden cable. The Bowden cable includes a flexible inner wire and an outer tube that serves as a guide and support. One end of the inner wire is connected to the telescopic end of the electric push rod, and the other end is connected to the movable end 52 through an epoxy resin insulating rod inside the connecting rod 60. This flexible transmission structure ensures that even when the hinge of the connecting rod 60 deflects at an angle, the transmission path remains smooth and will not jam.

[0027] In specific operation: When the electric drive assembly 32 (electric push rod) loses power or performs an extension action, the tension applied to the inner wire disappears or decreases. At this time, the elastic force of the compressed reset member 62 (compression spring) is released, pushing the sliding movable end 52 to move along the slide groove 61 towards the fixed end 51 until it is tightly closed, providing a constant clamping force to firmly clamp the measured part; the operating controller 20 energizes the electric drive assembly 32 (electric push rod) to retract. The electric push rod, through the inner wire of the pull wire assembly 40 (Bowden wire), overcomes the elastic force of the reset member 62 and pulls the movable end 52 along the slide groove 61 away from the fixed end 51, opening the jaws to release or prepare to clamp the measured part.

[0028] Reference Figures 1-5In some embodiments, a guide groove 63 is constructed on the connecting rod 60, which is axially arranged and communicates with the slide groove 61. A conductive post 64 extending out of the guide groove 63 is provided on the movable end 52. The lead wire 65 of the control device 20 is connected to the conductive post 64. The test lead wire is connected to the banana socket on the connecting rod 60 through a banana plug. The electrical signal is transmitted to the clamp assembly 50 through the lead wire 65 and the conductive post 64, and then contacts the high-voltage equipment terminal through the clamp, forming a complete test circuit.

[0029] Reference Figures 1-5 In some embodiments, to accommodate terminals with different orientations, a first angle adjustment component 80a is provided between the terminal block 60 and the extension rod 70 at the end. Preferably, the first angle adjustment component 80a includes a first hinge lug 81, a second hinge lug 82, a screw 83, a knob 84, and a hexagonal nut 85. The first hinge lug 81 is disposed on the terminal block 60, and the second hinge lug 82 is disposed on the extension rod 70 at the end and abuts against the first hinge lug 81. The screw 83 passes through the first hinge lug 81 and the second hinge lug 82. The knob 84 is connected to one end of the screw 83, and the hexagonal nut 85 is connected to the other end of the screw 83. During adjustment, the knob 84 is manually rotated to loosen the screw 83, and the terminal block 60 and the pliers assembly 50 are bent to the desired angle. Then, the knob 84 is tightened in the opposite direction to lock the angle through friction, thus achieving arbitrary angle positioning within the range of 0° to 180°.

[0030] Reference Figures 1-5 In some embodiments, to further enhance the operational stability of the entire device on the ground, the high-altitude power equipment test auxiliary wiring device also includes a base 81. The bottom of the upright 10 is connected to the base 81 through a second angle adjustment component 80b. The base 81 is made of cast iron and equipped with anti-slip pads to ensure that the device will not slide or tip over during the test. The second angle adjustment component 80b can adopt the same structure as the first angle adjustment component 80a, that is, it includes hinge lugs, screws and knobs that abut against each other, so that the tilt angle of the upright can be adjusted to adapt to uneven ground and ensure the basic verticality of the upright.

[0031] Reference Figures 1-5In some embodiments, the controller 20 is provided with an interface component 22 and a switch component 21. The switch component 21 includes, but is not limited to, a clamping button, a clamping button, and a power button, which are used to control the state of the electric drive component 32 and realize one-button operation. Furthermore, the controller 20 also integrates a wireless remote control receiver module, which can be equipped with a wireless remote control for remote operation, further freeing the operator's hands. The interface component 22 is mainly a charging interface, used to charge the energy storage device 31 (rechargeable lithium battery), ensuring the reusability and convenience of the device. In addition, the clamp teeth of the fixed end 51 and the movable end 52 of the clamping head component 50 are provided with sharp steel needles, which are used to pierce the oxide film on the surface of the high-voltage equipment terminals when clamping, significantly reducing contact resistance and improving the accuracy of test data.

[0032] Based on the above structure, the specific usage procedure of the auxiliary wiring device for testing high-altitude power equipment is explained below: ① Based on the height of the equipment under test, select an appropriate number of extension rods 70, and connect the upright 10, each extension rod 70, and the connecting rod 60 in sequence by thread. At the same time, ensure that the aviation plug 92 and aviation socket 91 between each section are accurately connected. Connect one end of the test lead to the test instrument, and connect the other end to the banana socket on the connecting rod 60 through the banana plug.

[0033] ② Place the base 81 on a flat surface, adjust the pitch angle of the upright 10 using the second angle adjustment component 80b until it is basically vertical, and then lock it; operate the first angle adjustment component 80a, loosen the knob 84, manually adjust the angle of the wiring rod 60 and the clamping head component 50 to align them with the high-altitude wiring terminal, and then lock the knob 84; lift the assembled wiring rod and insert the upright 10 into the fixing clamp of the base 81 and lock it.

[0034] ③ Press the "open clamp button" on the controller 20 or operate it via remote control. The electric drive assembly 32 is energized and retracts. The movable end 52 is pulled back by the pull cable assembly 40, and the jaws open. After aligning with the terminal, press the "close clamp button" or release the button. The electric drive assembly 32 is de-energized, and the reset component 62 pushes the movable end 52 to close. The clamp head firmly clamps the terminal, and the steel needles on the clamp teeth pierce the oxide film, establishing a reliable electrical connection.

[0035] ④ Start the testing instrument to conduct a high-voltage test.

[0036] ⑤ After the test is completed, operate the control device 20 to open the jaws, remove the connecting rod, and complete the wire disconnection. After disassembling each section of the rod, put it into a special toolbox for easy carrying and transportation.

[0037] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A high voltage power equipment test auxiliary wiring device, characterized in that: It includes a pole (10), a control device (20), an energy storage device (31), an electric drive assembly (32), a pull cable assembly (40), a clamp assembly (50), a wiring pole (60), and at least one extension pole (70). The control device (20) and the energy storage device (31) are mounted on the pole (10); The extension rod (70) is cascaded to the top of the upright (10), and the connecting rod (60) is hinged to the extension rod (70) at the end; The electric drive assembly (32) is mounted on the extension rod (70); One end of the pull wire assembly (40) is connected to the electric drive assembly (32); The clamp assembly (50) is disposed on the connecting rod (60) and has a fixed end (51) and a movable end (52), the movable end (52) being connected to the other end of the pull wire assembly (40); The control device (20) is electrically connected to the energy storage device (31), the electric drive assembly (32), and the clamp assembly (50); When the controller (20) is operated, the electric drive assembly (32) can drive the movable end (52) closer to the fixed end (51) via the pull wire assembly (40) to clamp the component under test, or the electric drive assembly (32) can drive the movable end (52) away from the fixed end (51) via the pull wire assembly (40) to release the component under test.

2. The high voltage apparatus test auxiliary wiring device of claim 1, wherein: An axially arranged groove (61) is constructed on the connecting rod (60). The fixed end (51) is located at the end of the connecting rod (60) away from the extension rod (70). The movable end (52) is slidably disposed in the groove (61). The connecting rod (60) also includes a reset member (62) disposed between the movable end (52) and the connecting rod (60) for providing a driving force for the movable end (52) to move closer to the fixed end (51).

3. The high voltage apparatus under test auxiliary wiring device of claim 2, wherein: The connecting rod (60) has an axially arranged guide groove (63) that communicates with the slide groove (61). The movable end (52) is provided with a conductive post (64) extending out of the guide groove (63). The lead wire (65) of the control device (20) is connected to the conductive post (64).

4. The high voltage apparatus under test auxiliary wiring device of claim 1, wherein: A first angle adjustment assembly (80a) is provided between the connecting rod (60) and the extension rod (70) located at the end.

5. The high voltage apparatus under test auxiliary wiring device of claim 4, wherein: The first angle adjustment assembly (80a) includes a first hinge lug (81), a second hinge lug (82), a screw (83), a knob (84), and a hexagonal nut (85). The first hinge lug (81) is disposed on the connecting rod (60), and the second hinge lug (82) is disposed on the extension rod (70) located at the end and abuts against the first hinge lug (81); The screw (83) passes through the first hinge (81) and the second hinge (82); The knob (84) is connected to one end of the screw (83); The hexagonal nut (85) is connected to the other end of the screw (83).

6. The high voltage apparatus under test auxiliary wiring device of claim 1, wherein: It also includes a base (81), the bottom of which is connected to the base (81) via a second angle adjustment assembly (80b).

7. The high voltage apparatus under test auxiliary wiring device of claim 1, wherein: The upright (10) is threadedly connected to the extension rod (70) and / or between two adjacent extension rods (70), and a conductive component (90) is provided between the upright (10) and the extension rod (70) and / or between two adjacent extension rods (70).

8. The high voltage apparatus test auxiliary wiring device of claim 7, wherein: The conductive component (90) includes an aviation socket (91) and an aviation plug (92), the aviation socket (91) being disposed on one of the upright (10) and the extension rod (70), and the aviation plug (92) being disposed on the other of the upright (10) and the extension rod (70).

9. The high voltage apparatus under test auxiliary wiring device of claim 1, wherein: The controller (20) is provided with a button assembly (21) for controlling the state of the electric drive assembly (32).

10. The high voltage apparatus under test auxiliary wiring device of claim 1, wherein: The controller (20) is provided with an interface component (22) for connecting to an external power supply or external device.

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