Electric power facility maintenance device

Abstract

An electric power facility maintenance device comprises a crawler chassis, the upper portion of the crawler chassis is connected with two gantries, the two gantries are arranged in the moving direction of the crawler chassis in a spaced mode, telescopic frames are connected into the gantries in a sliding mode, and the telescopic frames are driven by lifting hydraulic cylinders arranged at the bottoms of the gantries to ascend or descend. A working platform is connected between the telescopic frames of the two portal frames. The working platform comprises a man-carrying platform and guardrails, the man-carrying platform is installed between the telescopic frames, and the guardrails are connected to the periphery of the man-carrying platform and comprise fixed guardrails and guardrail doors. And insulating protective layers are arranged on the manned platform and the guardrails. The insulating protection layer is made of one of polyethylene, polyvinyl chloride or polytetrafluoroethylene.

Description

Technical Field

[0001] This utility model relates to the field of power facility installation and maintenance technology, and specifically to a power facility maintenance device. Background Technology

[0002] With the rapid development of the economy, the demand for electricity from all sectors of my country is increasing day by day. Power facilities are an important part of the power grid, and the maintenance and upkeep of power facilities are the key to ensuring power supply.

[0003] The existing maintenance equipment allows maintenance personnel to climb the power pole by attaching foot straps to their feet and then holding onto the pole. However, this method of climbing with foot straps has certain drawbacks. Maintenance personnel are prone to falling from heights, resulting in significant safety hazards during power facility maintenance operations. Utility Model Content

[0004] In view of the problems and shortcomings of the existing technology, this utility model provides a power facility maintenance device.

[0005] The technical solution of this utility model is as follows:

[0006] A power facility maintenance device includes a tracked chassis with two gantries connected to the upper part of the tracked chassis. The two gantries are spaced apart along the moving direction of the tracked chassis. A telescopic frame is slidably connected inside the gantries. The telescopic frame is driven to rise or fall by a lifting hydraulic cylinder located at the bottom of the gantry. A working platform is connected between the telescopic frames of the two gantries.

[0007] The work platform includes a manned platform and guardrails. The manned platform is installed between telescopic frames, and the guardrails are connected around the manned platform, including fixed guardrails and guardrail gates.

[0008] The manned platform and guardrails are equipped with an insulating layer. The insulating layer is made of one of the following: polyethylene, polyvinyl chloride, or polytetrafluoroethylene.

[0009] When in use, the power maintenance device is first transported to the location where power maintenance needs to be performed by a trailer. Then, the control unit controls the relevant valves to activate the lifting hydraulic drive, which drives the telescopic frame to move downward and moves the work platform connected to it to the lowest position. The staff enters the work platform by opening the guardrail door, and then uses the lifting hydraulic drive to raise the work platform to a suitable working position to carry out maintenance work. After the maintenance work is completed, the work platform is driven to descend to the lowest position.

[0010] To accurately control the position of the work platform and reduce impact damage, multiple limit switches are installed on the gantry, spaced apart along the height of the gantry. A sensor is located at the bottom of the telescopic frame to trigger the limit switches. Furthermore, at least two limit switches are installed on the gantry, respectively positioned at the highest and lowest points of the telescopic frame.

[0011] According to one specific embodiment, the telescopic frame includes multiple internal masts that are connected at the ends. The height of the telescopic frame is increased by extending upwards, and the height of the telescopic components is decreased by compressing downwards.

[0012] To keep the work platform as level as possible on uneven ground, its angle can be finely adjusted. Specifically, a support platform is connected to the bottom of the work platform. This support platform is horizontally positioned and fixedly connected to the telescopic frames on both sides. One end of the work platform is hinged to the support platform, and the other end is connected to the support platform via a height-adjustable rotary hydraulic cylinder. More specifically, the fixed bottom end of the rotary hydraulic cylinder is fixedly connected to the gantry, and the free upper end is hinged to the bottom surface of the work platform.

[0013] The beneficial effects of this utility model are:

[0014] The telescopic frame, hydraulically driven and installed within the gantry, moves the work platform up and down, facilitating access for workers to the platform and movement to designated heights for installation and maintenance of overhead lines and tower components. This effectively replaces the existing method of climbing with pole climbing straps, which poses significant safety hazards, thus reducing the overall safety risks of power facility maintenance and making maintenance work easier.

[0015] Furthermore, insulating sleeves are installed on the work platform and guardrails to prevent workers from being electrocuted. In addition, a tracked chassis is used at the bottom, facilitating short-distance ground movement of the maintenance device during field operations. The angle of the work platform is adjustable to adapt to uneven terrain, ensuring the platform remains level as much as possible to prevent workers from falling. Attached Figure Description

[0016] Figure 1 This is the main view of the embodiment;

[0017] Figure 2 This is the left view of an embodiment;

[0018] Figure 3 This is a top view of an embodiment;

[0019] Figure 4 This is a partially enlarged schematic diagram of the connection structure of the work platform;

[0020] 1. Tracked chassis; 2. Gantry; 3. Telescopic frame; 4. Working platform; 5. Lifting hydraulic drive; 6. Support platform; 7. Rotation hydraulic drive; 8. Limit switch. Detailed Implementation

[0021] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0022] Example

[0023] See Figures 1-3 As shown, a power facility maintenance device includes a tracked chassis 1, with two gantry frames 2 connected to the upper part of the tracked chassis 1. The two gantry frames 2 are spaced apart along the moving direction of the tracked chassis 1. A telescopic frame 3 is slidably connected inside the gantry frame 2. The telescopic frame 3 is driven to rise or fall by a lifting hydraulic cylinder located at the bottom of the gantry frame 2. A working platform 4 is connected between the telescopic frames 3 of the two gantry frames 2.

[0024] The work platform 4 includes a manned platform and guardrails. The manned platform is installed between the telescopic frames 3, and the guardrails are connected around the manned platform, including fixed guardrails and guardrail gates.

[0025] The manned platform and guardrails are equipped with an insulating layer. The insulating layer is made of one of the following: polyethylene, polyvinyl chloride, or polytetrafluoroethylene.

[0026] When in use, the power maintenance device is first transported to the location where power maintenance needs to be performed by a trailer. Then, the control unit controls the relevant valves to operate the lifting hydraulic drive 5, which drives the telescopic frame 3 to move downward and moves the work platform 4 connected to it to the lowest position. The staff enters the work platform 4 by opening the guardrail door, and then drives the lifting hydraulic drive 5 to raise the work platform 4 to a suitable working position to carry out maintenance work. After the maintenance work is completed, the work platform 4 is driven to descend to the lowest position.

[0027] To accurately control the position of the work platform 4 and reduce impact damage, multiple limit switches 8 are installed on the gantry 2. The limit switches are spaced apart along the height of the gantry 2, and a sensor is provided on the bottom of the telescopic frame 3 to trigger the limit switches. Furthermore, at least two limit switches 8 are installed on the gantry 2, respectively located at the highest and lowest positions of the telescopic frame 3.

[0028] According to one specific embodiment, the telescopic frame 3 includes multiple inner masts with converging connections. The height of the telescopic frame 3 is increased by extending it upwards, and the height of the telescopic components is decreased by compressing them downwards.

[0029] See Figure 4To keep the work platform 4 as level as possible on uneven ground, its angle can be finely adjusted. Specifically, a support platform 6 is connected to the bottom of the work platform 4. The support platform 6 is horizontally positioned and fixedly connected to the telescopic frames 3 on both sides. One end of the work platform 4 is hinged to the support platform 6, and the other end is connected to the support platform 6 at an adjustable height via a rotating hydraulic cylinder. More specifically, the fixed bottom end of the rotating hydraulic cylinder is fixedly connected to the gantry 2, and the free upper end is hinged to the bottom surface of the work platform 4.

[0030] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A power facility maintenance device characterized in that, comprising a caterpillar chassis (1), two portal frames (2) are connected to the upper part of the caterpillar chassis (1), the two portal frames (2) are arranged at intervals along the moving direction of the caterpillar chassis (1), a telescopic frame (3) is slidingly connected in the portal frame (2), the telescopic frame (3) is driven by a lifting hydraulic cylinder arranged at the bottom of the portal frame (2) to be raised upward or lowered, a working platform (4) is connected between the telescopic frames (3) of the two portal frames (2); the working platform (4) comprises a manned platform and a guardrail, the manned platform is installed between the telescopic frames (3), the guardrail is connected around the manned platform, and the guardrail comprises a fixed guardrail and a guardrail door; an insulating protective layer is arranged on the manned platform and the guardrail.

2. The electric utility maintenance device of claim 1, wherein, A plurality of limit switches (8) are arranged on the portal frame (2), the limit switches (8) are arranged at intervals along the height of the portal frame (2), and a sensing part for triggering the limit switch is arranged on the bottom of the telescopic frame (3).

3. The electric utility maintenance device of claim 1 or 2, wherein, At least two limit switches (8) are arranged on the portal frame (2), and are arranged at the highest position and the lowest position of the telescopic frame (3) respectively.

4. The electric utility maintenance device of claim 1, wherein, The telescopic frame (3) comprises a plurality of first and last inserted inner portal frames.

5. The electric utility maintenance device of claim 1, wherein, A supporting platform (6) is further connected to the bottom of the working platform (4), the supporting platform (6) is horizontally arranged and fixedly connected with the telescopic frames (3) on both sides, one end of the working platform (4) is hingedly connected with the supporting platform (6), and the other end is connected with the supporting platform (6) in height-adjustable mode through a rotary hydraulic cylinder.

6. The electric utility maintenance device of claim 5, wherein, The bottom fixed end of the rotary hydraulic cylinder is fixedly connected with the portal frame (2), and the upper free end is hingedly connected with the bottom surface of the working platform (4).

7. The electric utility maintenance device of claim 1, wherein, The insulating protective layer is made of one of polyethylene, polyvinyl chloride and polytetrafluoroethylene.

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