Working platform for high-voltage bushing of transformer and using method

Abstract

The invention relates to a working platform for a high-voltage bushing of a transformer. The working platform comprises two bottom plates which are oppositely arranged and a connecting piece, the bottom plate is of a rectangular integral plate type structure, and a semicircular concave part is arranged on the edge of the inner side of the bottom plate; the concave parts on the two bottom plates are respectively and mutually combined to form a round pincer-shaped bayonet matched with an insulator porcelain bottle; the two bottom plates are detachably connected and fastened through a connecting piece; according to the portable porcelain insulator climbing device, operation is convenient, labor intensity can be saved, maintenance work of porcelain insulators can be rapidly and conveniently achieved, and work efficiency and climbing efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of power operation tools, and in particular to an operation platform for high-voltage bushings of 110KV and above transformers. Background Technology

[0002] With the expansion of my country's power infrastructure construction, the inspection and maintenance of transmission lines are becoming increasingly frequent. The inspection and replacement of porcelain insulators is a major part of transmission line maintenance and is the most common type of high-altitude operation.

[0003] Insulating porcelain insulators are a type of insulator commonly used in overhead transmission lines, made of electrical ceramics. These insulators require regular maintenance. Regular maintenance of these insulators necessitates workers climbing them at a height. Current climbing methods typically involve using a safety harness around the worker's waist, relying on the strength of their limbs and waist to climb. Climbing insulating porcelain insulators is quite difficult. Furthermore, because the insulator's skirts point downwards and the gaps between the porcelain plates are very small, it is also difficult for workers to maintain a foothold, hindering climbing and reducing work efficiency.

[0004] The replacement and maintenance of porcelain insulators on power transmission lines requires the construction of temporary working platforms. Currently, when setting up these platforms, maintenance personnel attach a clip to the top of an insulated ladder to secure it to the high-voltage bushing insulator. However, because the personnel standing on the ladder are not in close contact with the insulator, they cannot reach the back of the insulator during cleaning. Furthermore, the ladder is large, heavy, inconvenient to carry, and physically demanding for the workers. Summary of the Invention

[0005] In view of the insufficient adaptability and upgrade requirements of existing technologies, the present invention provides an operating platform for transformer high-voltage bushings.

[0006] A working platform for transformer high-voltage bushings includes two base plates arranged opposite each other and a connector; characterized in that the base plates are rectangular integral plate structures, and the inner edge of the base plates is provided with a semi-circular recess; the recesses on the two base plates respectively mate with each other to form a circular clamp-shaped jaw that cooperates with the porcelain insulator; the two base plates are detachably connected and fastened by the connector.

[0007] Furthermore, the connector uses a high-strength long rod that runs through both base plates, with a threaded head.

[0008] Furthermore, the base plate is rectangular, with connecting areas on both sides of its short side. The connecting areas have a relatively large thickness, and a connecting through hole is machined in the center of the connecting area. The connecting through hole is used for the connector to pass through.

[0009] Furthermore, retaining elements are symmetrically arranged on both sides of the connecting through hole, and the retaining elements include rod-shaped protrusions 11 and matching insertion blind holes.

[0010] Furthermore, the outer long side of the base plate forms a strip frame, which is used to connect the connection areas of the two short sides to ensure the overall structural stability.

[0011] Furthermore, the connecting area and the strip frame are of uniform thickness, forming a complete plane that serves as a platform guardrail to prevent feet from slipping outwards. The surface of the guardrail is treated with a rough, non-slip finish.

[0012] Furthermore, a semi-circular recess is set at the center of the inner side of the base plate, and the edge of the semi-circular recess is a semi-circular frame. The semi-circular frame is inserted into the root between any two layers of umbrella skirts of the porcelain bottle to form a rooting foundation to accept the self-weight of the platform and the load from the upper part.

[0013] Furthermore, a grid structure with a relatively small thickness is used in the central area of ​​the base plate.

[0014] A method for using a working platform for transformer high-voltage bushings, characterized in that: The staff first used a lifting tool to rise to a certain height and approach the high-pressure bushing; The first platform is installed between the lower skirts of the first high-voltage bushing; Workers entered the first platform and continued to install the second platform between the umbrella skirts at a suitable height on the second high-voltage bushing; Continuous operation creates a staggered trapezoidal platform sequence between the first and second high-voltage bushings; workers use the trapezoidal platform sequence to climb the high-voltage bushings and perform maintenance on the two high-voltage bushings at suitable platform positions; After the work is completed, the equipment will be dismantled starting from the top platform. The first high-voltage bushing and the second high-voltage bushing will be dismantled layer by layer, and the power equipment will be restored to operation.

[0015] Furthermore, During platform installation, the rod-shaped protrusions and matching blind insertion holes are used for initial positioning, and then the connectors are inserted for manual locking. The operation is convenient and requires no other auxiliary tools. When dismantling the platform, loosen the connectors, separate the two base plates, and collect and recycle them.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This application is for a working platform for transformer high-voltage bushings. It is easy to operate, saves labor intensity, and can quickly and conveniently carry out maintenance work on insulating porcelain insulators, improving work efficiency and climbing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the combined structure; Figure 2 This is a schematic diagram of a single-base plate structure.

[0018] Among them, 1-base plate, 2-connector, 11-rod-shaped protrusion, 12-connecting through hole, 13-semi-circular recess, 14-connecting area, 15-semi-circular frame, 16-strip frame, 17-grid body, 21-wing nut, 22-long screw. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0020] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," "top," "bottom," and similar expressions used in this document are for illustrative purposes only.

[0021] from Figure 1 , Figure 2 As can be seen, this application includes two base plates 1 arranged opposite to each other and a connector 2. The base plate 1 in this embodiment is a rectangular integral plate structure. The side edge of the base plate 1 is provided with two semi-circular recesses 13. In use, the recesses 13 on the two base plates 1 are respectively engaged with each other to form a round clamp-shaped jaw that cooperates with the insulator porcelain bottle. The two base plates 1 are detachably connected and fastened by the connector 2. The connector 2 adopts a high-strength long screw 22 with a diameter of 20mm that runs through the two base plates.

[0022] like Figure 2 As shown, the base plate is rectangular, with connecting areas 14 on both sides of its short side. The connecting areas 14 have a relatively large thickness of 50mm. A connecting through hole 12 is machined in the center of the connecting area, which can be used to pass through the connector.

[0023] A retaining element is symmetrically arranged on both sides of the connecting through hole 22. The retaining element includes a rod-shaped protrusion 11 and a matching insertion blind hole (not shown in the figure).

[0024] Rod-shaped protrusions 11 and corresponding blind insertion holes are respectively arranged on the joint surfaces of the connection areas of the two base plates 2. When the two base plates are joined, temporary positioning and fixation can be achieved through the rod-shaped protrusions and blind insertion holes. Then, a high-strength long screw 22 is passed through the connection through holes 11 of the two base plates, and wing nuts 21 are tightened at both ends of the high-strength long screw to join the two base plates into a single working platform.

[0025] The rod-shaped protrusion and the matching insertion blind hole can be respectively set on a single base plate, that is, one base plate has a rod-shaped protrusion and the other has a matching insertion blind hole.

[0026] Alternatively, they can be set on two base plates respectively, that is, one base plate has both rod-shaped protrusions and matching insertion blind holes.

[0027] The outer long side of the base plate forms a strip frame 16, which is used to connect the connection areas 14 on both short sides to ensure the overall structural stability. The strip frame has the same thickness as the connection area, forming a complete plane, which serves as a guardrail for the platform to prevent the feet from slipping outward. The surface of the guardrail can be roughened to form an anti-slip stripe structure.

[0028] A semi-circular recess 13 is set at the center of the inner side of the base plate. The edge of the semi-circular recess 13 is a semi-circular frame 15 with an inner arc edge thickness of 30mm. The semi-circular frame 15 can be inserted into the root between any two layers of umbrella skirts of the porcelain bottle, thus forming a rooting foundation that can accept the platform's own weight and the load from the upper part.

[0029] In the central area of ​​the base plate, a grid structure 17 is used. This grid structure is relatively thin, only 15mm thick, and provides load-bearing capacity while maintaining a low self-weight. The grid structure also features waterproofing and slip resistance.

[0030] When this technical solution is applied, Two rectangular base plates, one side of which has an inner arc, are clamped onto the transformer high-voltage bushing porcelain insulator, with the inner arc side fitting against the insulator. Two connectors are used to string the two rectangular base plates together, ensuring they are connected and pass through each other. These are then tightened with wing nuts. Workers, wearing safety harnesses, can then stand on the two base plates to work. The number of temporary high-voltage bushing (porcelain insulator) work platforms installed depends on the height of the high-voltage bushing.

[0031] Two symmetrical rectangular base plates (made of wood, aluminum, insulating material, etc., 50mm thick) with inner curved sides are attached to the porcelain insulator. The inner curved side (30mm thick at the inner edge) is aligned with the base between any two layers of the insulator's skirts. Two connectors (φ20mm) are used to string the two wooden boards together, leaving a threaded end for easy tightening by hand with a wing nut. The other end can be a small ring for easy carrying and manual securing. At this point, a worker wearing a safety harness can stand on the platform to work (the platform has a maximum load capacity of 100kg). The outer side of the base plates uses connecting areas and strip frames to form a guardrail to prevent slippage. The surface of the guardrail can be roughened for anti-slip properties, creating an anti-slip stripe structure. Additionally, the central grid structure also provides anti-slip functionality.

[0032] Multiple temporary working platforms for high-voltage bushings (porcelain insulators) can be configured and used in combination according to the height of the high-voltage bushing.

[0033] In practical use, two adjacent high-voltage bushings can serve as the installation base, such as the left high-voltage bushing and the right high-voltage bushing.

[0034] Workers first use lifting tools, such as insulated ladders, to rise to a certain height and approach the high-voltage bushing.

[0035] The first platform is installed between the lower skirts of one of the high-voltage bushings. During installation, the platform is first initially positioned using the rod-shaped protrusions and matching blind insertion holes, and then manually locked by inserting the connector. The operation is convenient and requires no other auxiliary tools.

[0036] Specifically, during installation on a platform, the two base plates are fastened together from the left and right sides of the high-pressure bushing, and initial positioning is achieved using rod-shaped protrusions and matching blind insertion holes. The operator first inserts the connector into the connection through hole at the near end for manual locking. Then, the operator rotates the two fastened base plates 180 degrees, rotating the connection through hole at the far end to the near end, and continues to insert the connector into the connection through hole at the near end for manual locking, thereby achieving locking and fixing of all connectors at both ends.

[0037] Workers entered the first platform and continued to install the second platform between the umbrella skirts at a suitable height on another high-voltage bushing, following the same installation process.

[0038] Continuing the above operations, a staggered trapezoidal platform sequence is formed between the left and right high-voltage bushings. Workers utilize this trapezoidal platform sequence to flexibly climb the high-voltage bushings and perform maintenance work at suitable platform locations, including cleaning or replacement of parts on both bushings.

[0039] After the work is completed, dismantle the equipment starting from the top platform, loosen the connectors, separate the two base plates, and collect and recycle them. After dismantling the platforms on the left and right high-pressure bushings, the equipment can be restored to operation.

[0040] The external insulating porcelain insulators of 110kV, 220kV, and 500kV electrical equipment are very tall, about 3 to 5 meters. During power outage maintenance, maintenance personnel need to climb up to maintain the insulating porcelain insulators. Using the insulating porcelain insulator climbing device described above, climbing and cleaning can be achieved quickly and safely, reducing the difficulty of cleaning, improving the comfort of working at height, and also providing high safety.

[0041] The work platform described above is easy to operate, helps save labor intensity, and can quickly and easily clean insulating porcelain bottles, improving cleaning efficiency and climbing efficiency.

[0042] Finally, it should be noted that the above description is merely an explanation of the present invention and is not intended to limit the invention. Although the present invention has been described in detail, those skilled in the art can still modify the technical solutions described above or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A working platform for transformer high-voltage bushings, comprising two base plates arranged opposite each other and connecting components; characterized in that, The base plate is a rectangular integral plate structure with a semi-circular recess on the inner edge. The recesses on the two base plates mate with each other to form a round clamp-shaped jaw that cooperates with the porcelain insulator. The two base plates are detachably connected and fastened by connectors.

2. The working platform for transformer high-voltage bushings according to claim 1, characterized in that, The connector uses a high-strength long rod that runs through both base plates and has threads at the head.

3. The working platform for transformer high-voltage bushings according to claim 1, characterized in that, The base plate is rectangular, with the two sides of its short side forming a connection area. The connection area has a relatively large thickness, and a connection through hole is machined in the center of the connection area. The connection through hole is used for the connector to pass through.

4. The working platform for transformer high-voltage bushings according to claim 3, characterized in that, The two sides of the connecting through hole are symmetrically provided with retaining members, which include rod-shaped protrusions 11 and matching insertion blind holes.

5. The working platform for transformer high-voltage bushings according to claim 3, characterized in that, The outer long side of the base plate forms a strip frame, which is used to connect the connection areas of the two short sides to ensure the overall structural stability.

6. The working platform for transformer high-voltage bushings according to claim 5, characterized in that, The connecting area and the strip frame have the same thickness, forming a complete plane that serves as a platform guardrail to prevent feet from slipping outwards. The surface of the guardrail is treated with a rough, non-slip finish.

7. The working platform for transformer high-voltage bushings according to claim 1, characterized in that, The center of the inner side of the base plate is set as a semi-circular recess, and the edge of the semi-circular recess is a semi-circular frame. The semi-circular frame is inserted into the root between any two layers of umbrella skirts of the porcelain bottle to form a rooting foundation to bear the weight of the platform and the load from the upper part.

8. The working platform for transformer high-voltage bushings according to claim 1, characterized in that, In the central area of ​​the base plate, a grid structure with a relatively small thickness is used.

9. A method of using the working platform for transformer high-voltage bushings as described in claim 1, characterized in that: The staff first used a lifting tool to rise to a certain height and approach the high-pressure bushing; The first platform is installed between the lower skirts of the first high-voltage bushing; Workers entered the first platform and continued to install the second platform between the umbrella skirts at a suitable height on the second high-voltage bushing; Continuous operation creates a staggered trapezoidal platform sequence between the first and second high-voltage bushings; workers use the trapezoidal platform sequence to climb the high-voltage bushings and perform maintenance on the two high-voltage bushings at suitable platform positions; After the work is completed, the equipment will be dismantled starting from the top platform. The first high-voltage bushing and the second high-voltage bushing will be dismantled layer by layer, and the power equipment will be restored to operation.

10. The method of use according to claim 9, characterized in that, During platform installation, the rod-shaped protrusions and matching blind insertion holes are used for initial positioning, and then the connectors are inserted for manual locking. The operation is convenient and requires no other auxiliary tools. When dismantling the platform, loosen the connectors, separate the two base plates, and collect and recycle them.

Images