10kv drop-out fuse post head insulation shielding device with self-detection function

Abstract

This invention relates to the field of fuse protection technology and discloses a 10kV drop-out fuse top terminal insulation shielding device with self-detection function, including: a shielding shell and a protective box fixedly connected to the surface and back of the shielding shell, and a connecting box fixedly connected to the surface of the protective box. An L-shaped baffle is fixedly connected inside the shielding shell, and a reinforcing component is disposed inside the L-shaped baffle. Through the use of the reinforcing component, the insulating rod drives the drive rod to rotate through the drive cylinder and the hinge joint, the receiving wheel receives the first pull rope, and the wire release wheel drives the rotating screw to rotate, thereby causing the first arc-shaped clamp to move on the surface of the guide rod. During the movement of the first arc-shaped clamp, the second arc-shaped clamp moves through the connecting cylinder, so that the first arc-shaped clamp and the second arc-shaped clamp on both sides hold the porcelain insulator tightly, thereby reinforcing the shielding shell and achieving the effect of preventing it from falling off.

Description

Technical Field

[0001] This invention relates to the field of fuse protection technology, specifically to an insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function. Background Technology

[0002] Drop-out fuses are mostly used in 10kV outdoor distribution networks and the high-voltage side of distribution transformers. They integrate short-circuit and overload protection, circuit isolation, and manual switching of small loads. They are simple in structure, low in cost, and easy to maintain. They are the most basic primary protection components in rural and urban power grids. They are usually composed of porcelain insulators, upper and lower contacts, fuse tubes, fuse wires, and operating rings.

[0003] Publication No. CN116053098B discloses an insulation shielding device for the upper terminal of a 10 kV drop-out fuse, relating to the field of fuse technology. The device includes a housing with an insulating cover connected to one side wall of the housing. The insulating cover is used to fit over the upper terminal of the fuse. The housing is fitted onto the side wall of the fuse and has a semi-open structure. It also includes a locking mechanism on the housing for locking onto the ceramic insulator. When the housing is engaged with the ceramic insulator, the locking mechanism passively engages and locks the housing onto the ceramic insulator. The aforementioned application, through the housing and the insulating cover on the housing, enables the device to be placed over the upper terminal of the fuse during maintenance to insulate and block the high-voltage current at the upper terminal.

[0004] While the aforementioned applications and existing technologies facilitate the maintenance of the lower terminal and allow for maintenance without disconnecting the upper terminal, greatly avoiding large-scale power outages, the insulation covers used for permanent protection of fuses are susceptible to environmental influences, potentially leading to detachment between the insulation cover and the fuse. Furthermore, when using curved claws to connect the insulation cover to the fuse's insulator, the rubber material of these claws can cause them to detach after prolonged use, damaging the insulator's skirt. Additionally, when the insulation cover is connected to the fuse's insulator via curved claws, strong winds can cause the insulation cover to be blown away, resulting in wear and tear on the insulator and affecting its insulation performance. Therefore, this invention proposes a 10kV drop-out fuse upper terminal insulation shielding device with self-detection function. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a 10kV drop-out fuse top terminal insulation shielding device with self-detection function. This device offers advantages such as preventing detachment, preventing falling, and preventing wear. It solves the problems of the aforementioned applications and existing technologies, where the insulating cover is easily affected by the environment when providing permanent protection for the fuse, leading to detachment between the insulating cover and the fuse. Furthermore, when using curved claws to connect the insulating cover to the fuse's insulator, the curved claws, often made of rubber, can detach from the insulator after prolonged use, causing damage to the insulator's skirts. Additionally, when connecting the insulating cover to the fuse's insulator using curved claws, strong winds can cause the insulating cover to be blown by the wind, resulting in wear on the insulator through the curved claws and affecting its insulation performance.

[0006] (II) Technical Solution To achieve the aforementioned objectives of preventing detachment, preventing falling, and preventing wear, this invention provides the following technical solution: a 10kV drop-out fuse top terminal insulation shielding device with self-detection function, comprising: a shielding shell and a protective box fixedly connected to the surface and back of the shielding shell, and further comprising: A connecting box is fixedly connected to the surface of the protective box, a drive box is fixedly connected to one side of the protective box, and an L-shaped baffle is fixedly connected inside the shielding shell; A reinforcement component is disposed inside the L-shaped baffle to reinforce the connection between the shielding shell and the fuse insulator. The reinforcement component includes a sliding rod fixedly connected inside the L-shaped baffle. A first arc-shaped clamp is slidably connected to the surface of the sliding rod. A connecting cylinder is fixedly connected to the bottom of the first arc-shaped clamp. A second arc-shaped clamp is fixedly connected to the bottom of the connecting cylinder. A fall arrestor assembly is disposed on the surface of the first arc-shaped clamp to prevent damage to the umbrella skirt on the surface of the fuse insulator due to aging of the first and second arc-shaped clamps. The anti-wear component is located inside the connection box to prevent the first and second arc-shaped clamps from swaying and causing wear to the fuse insulator due to strong winds.

[0007] Furthermore, a drive cylinder is provided on one side of the drive box, a T-shaped groove is provided on the surface of the drive cylinder, and an insulating rod is provided inside the drive cylinder.

[0008] Furthermore, the reinforcement assembly also includes a drive rod rotatably connected inside the drive box and a guide rod fixedly connected inside the drive box. The drive rod and the drive cylinder are hinged together by a hinge joint, and two storage wheels are fixedly connected to the surface of the drive rod.

[0009] Furthermore, the reinforcement assembly also includes a rotating screw rotatably connected between the protective box and the L-shaped baffle. A wire feeding wheel is fixedly connected to the surface of the rotating screw. A first pull rope is provided on the surface of the wire feeding wheel. The end of the first pull rope away from the wire feeding wheel is fixedly connected to the surface of the receiving wheel. The first arc-shaped clamp is threadedly connected to the surface of the rotating screw.

[0010] Furthermore, the fall arrestor includes a liquid cylinder fixedly connected to the surface of the first arc-shaped clamping plate, a squeezing disc slidably connected inside the liquid cylinder, a squeezing rod fixedly connected to the surface of the squeezing disc, a squeezing plate fixedly connected to the end of the squeezing rod away from the squeezing disc, a first spring fixedly connected between the surface of the squeezing disc and the interior of the liquid cylinder, and the liquid cylinder and the connecting cylinder are connected by a connecting pipe.

[0011] Furthermore, the fall arrestor also includes a lifting plate slidably connected inside the connecting cylinder, a lifting rod fixedly connected to the top of the lifting plate, a mounting block fixedly connected to the top of the lifting rod, and a push cylinder fixedly connected inside the mounting block.

[0012] Furthermore, a sealing disc is slidably connected inside the push cylinder, a push rod is fixedly connected to one end of the sealing disc, a ball bearing is provided at the end of the push rod away from the sealing disc, and a second spring is fixedly connected between the end of the sealing disc away from the push rod and the inside of the push cylinder.

[0013] Furthermore, a limiting groove is formed inside the push cylinder, and a limiting protrusion is fixedly connected to the surface of the sealing disc, with the limiting protrusion disposed inside the limiting groove.

[0014] Furthermore, the anti-wear component includes a first rotating rod rotatably connected inside the connecting box, a cup-shaped rod fixedly connected to the surface of the first rotating rod, and a take-up reel fixedly connected to the surface of the first rotating rod.

[0015] Furthermore, the anti-wear component includes a second rotating rod rotatably connected inside the connecting box and a frame toothed plate slidably connected inside the connecting box. A cable guide wheel is fixedly connected to the surface of the second rotating rod, and a second pull rope is provided on the surface of the cable guide wheel. The end of the second pull rope away from the cable guide wheel is fixedly connected to the surface of the take-up wheel. A rotating gear is fixedly connected to the surface of the second rotating rod, and the rotating gear meshes with the frame toothed plate for transmission. A reinforcing plate is fixedly connected to one end of the frame toothed plate.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides an insulation shielding device for the upper terminal of a 10kV drop-out fuse with self-detection function, which has the following advantages: 1. This 10kV drop-out fuse top terminal insulation shielding device with self-detection function, through the use of reinforcement components, inserts the insulating rod into the inside of the drive cylinder. The insulating rod and the drive cylinder move the shielding shell to the top of the fuse waterproof cover. Rotating the insulating rod, the insulating rod drives the drive cylinder and hinge joint to rotate the drive rod. The receiving wheel receives the first pull rope, causing the wire release wheel to drive the rotating screw to rotate, thereby causing the first arc-shaped clamp to move on the surface of the guide rod. During the movement of the first arc-shaped clamp, the second arc-shaped clamp moves through the connecting cylinder, so that the first arc-shaped clamp and the second arc-shaped clamp on both sides hold the porcelain insulator tightly, thereby reinforcing the shielding shell and achieving the effect of preventing it from falling off.

[0017] 2. This 10kV drop-out fuse top terminal insulation shielding device with self-detection function, through the combined use of reinforcement components and anti-fall components, causes the compression plate to move by squeezing as the first arc-shaped clamps on both sides approach each other. The compression plate drives the compression disc to move through the compression rod, allowing the liquid inside the liquid cylinder to enter the interior of one of the connecting cylinders through the connecting pipe. At the same time, as the first arc-shaped clamps move, the rolling ball is squeezed by the porcelain insulator, causing the rolling ball to squeeze the second spring through the push rod and sealing disc. After the liquid enters the interior of the connecting cylinder, it drives the lifting plate to rise, causing the lifting plate to drive the mounting block and push cylinder to rise through the lifting rod. When the surface of the porcelain insulator is no longer in contact with the rolling ball, the second spring is no longer squeezed and returns to its original position, thereby moving the push rod to the top of the porcelain insulator. Therefore, when the first and second arc-shaped clamps age, the push rod can support the first and second arc-shaped clamps, thus preventing the first and second arc-shaped clamps from falling and damaging the porcelain insulator skirt, thereby achieving the effect of preventing falling.

[0018] 3. The 10kV drop-out fuse with self-detection function uses a shielding shell and anti-wear components in conjunction. In windy weather, the wind blows the cup-shaped rod, which in turn drives the first rotating rod to rotate. When the first rotating rod rotates, it drives the take-up reel to rotate, which in turn takes the second pull rope into place on the surface of the take-up reel. During the take-up process, the second pull rope drives the wire guide reel to rotate, which in turn drives the rotating gear through the second rotating rod to rotate. The rotating gear drives the frame tooth plate to move, which in turn drives the reinforcing plate to move to one side of the fuse waterproof cover. Therefore, when the shielding shell is blown by strong winds, the shielding shell is held in place by the reinforcing plate, thus preventing the first and second arc-shaped clamps from causing wear on the porcelain insulator, thereby achieving the effect of avoiding wear.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the L-shaped baffle of the present invention; Figure 3 This is a three-dimensional structural diagram of the L-shaped baffle of the present invention from another perspective; Figure 4 This is a cross-sectional perspective view of the protective box and the drive box of the present invention. Figure 5 This is a three-dimensional structural diagram of the rotating screw and sliding rod of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the first arc-shaped clamping plate of the present invention; Figure 7 This is a cross-sectional three-dimensional structural diagram of the liquid cylinder of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the connecting cylinder of the present invention; Figure 9 This is a cross-sectional three-dimensional structural diagram of the connecting cylinder of the present invention; Figure 10 This is a cross-sectional three-dimensional structural diagram of the push tube of the present invention; Figure 11 This is a cross-sectional perspective view of the connection box of the present invention. Figure 12 This is a schematic diagram of the three-dimensional structure of the first and second rotating rods of the present invention.

[0021] In the diagram: 1. Shielding shell; 11. Protective box; 111. Connecting box; 12. Drive box; 121. Drive cylinder; 13. L-shaped baffle; 2. Reinforcing assembly; 21. Drive rod; 211. Storage wheel; 22. Guide rod; 23. Rotating screw; 231. Cable reel; 232. First pull rope; 24. Sliding rod; 241. First arc-shaped clamp; 242. Connecting cylinder; 243. Second arc-shaped clamp; 3. Fall protection assembly; 31. Liquid cylinder; 311. Squeezing disc; 312. Squeezing rod; 313. Extrusion plate; 314. First spring; 315. Connecting pipe; 32. Lifting plate; 321. Lifting rod; 322. Mounting block; 33. Pushing cylinder; 331. Sealing plate; 332. Pushing rod; 333. Rolling ball; 334. Second spring; 4. Anti-wear component; 41. First rotating rod; 411. Cup-shaped rod; 412. Take-up reel; 42. Second rotating rod; 421. Line guide reel; 422. Second pull rope; 423. Rotating gear; 43. Frame toothed plate; 431. Reinforcing plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0024] For a specific implementation example, please refer to Implementation Example 1. Figures 1 to 4 An insulation shielding device for the top terminal of a 10kV drop-out fuse with self-testing function, comprising: a shielding shell 1 and a protective box 11 fixedly connected to the surface and back of the shielding shell 1, and further comprising: A connecting box 111 is fixedly connected to the surface of the protective box 11. A drive box 12 is fixedly connected to one side of the protective box 11. An L-shaped baffle 13 is fixedly connected inside the shielding shell 1. A drive cylinder 121 is provided on one side of the drive box 12. A T-shaped groove is provided on the surface of the drive cylinder 121. An insulating rod is provided inside the drive cylinder 121. The reinforcement component 2 is disposed inside the L-shaped baffle 13 and is used to reinforce the connection between the shielding shell 1 and the fuse insulator. The reinforcement component 2 includes a sliding rod 24 fixedly connected inside the L-shaped baffle 13. A first arc-shaped clamping plate 241 is slidably connected to the surface of the sliding rod 24. A connecting cylinder 242 is fixedly connected to the bottom of the first arc-shaped clamping plate 241. A second arc-shaped clamping plate 243 is fixedly connected to the bottom of the connecting cylinder 242. The anti-fall component 3 is disposed on the surface of the first arc-shaped clamp 241 to prevent damage to the umbrella skirt on the surface of the fuse porcelain insulator due to aging of the first arc-shaped clamp 241 and the second arc-shaped clamp 243. The anti-wear component 4 is located inside the connecting box 111 to prevent the first arc-shaped clamp 241 and the second arc-shaped clamp 243 from shaking and causing wear to the fuse insulator due to strong winds. It should be noted that an insertion strip is fixedly connected to the surface of the insulating rod. When the insulating rod is inserted into the drive cylinder 121, the insertion strip can enter the T-slot. Thus, when the insulating rod rotates, the insulating rod can drive the drive cylinder 121 to rotate through the insertion strip and the T-slot. When it is necessary to shield and protect the upper terminal of a 10kV drop-out fuse, insert an insulating rod into the drive cylinder 121. The insulating rod drives the drive cylinder 121 and drive box 12 to move, so that the drive box 12 moves the shielding shell 1 to the upper terminal of the drop-out fuse. Then push the drive cylinder 121 so that the shielding shell 1 shields and protects the upper terminal of the drop-out fuse. The bottom of the protection box 11 is equipped with a detection unit. The detection unit emits a laser signal to determine whether the construction personnel are standing within the safe construction range. For a specific embodiment two, please refer to Figures 1 to 5 Based on the 10kV drop-out fuse top terminal insulation shielding device with self-detection function provided in Specific Embodiment 1, this embodiment provides a further technical solution: The reinforcement component 2 also includes a drive rod 21 rotatably connected inside the drive box 12 and a guide rod 22 fixedly connected inside the drive box 12. The drive rod 21 and the drive cylinder 121 are hinged together by a hinge joint. Two storage wheels 211 are fixedly connected to the surface of the drive rod 21. The reinforcement component 2 also includes a rotating screw 23 rotatably connected between the protective box 11 and the L-shaped baffle 13. A wire feeding wheel 231 is fixedly connected to the surface of the rotating screw 23. A first pull rope 232 is provided on the surface of the wire feeding wheel 231. One end of the first pull rope 232 away from the wire feeding wheel 231 is fixedly connected to the surface of the storage wheel 211. A first arc-shaped clamp 241 is threadedly connected to the surface of the rotating screw 23. It should be noted that a hinge frame is provided at one end of the rotating screw 23, and a reset cylinder is fixedly connected to one end of the hinge frame. The insulating rod is inserted into the interior of the reset cylinder, thereby separating the first arc-shaped clamp 241 from the second arc-shaped clamp 243 and the porcelain bottle. When it is necessary to prevent the shielding shell 1 from separating from the upper terminal of the drop-out fuse, rotate the insulating rod so that the insulating rod drives the driving rod 21 to rotate through the driving cylinder 121 and the hinge joint. When the driving rod 21 rotates, it drives the receiving wheel 211 to rotate, so that the receiving wheel 211 receives the first pull rope 232. During the receiving process, the first pull rope 232 drives the wire feeding wheel 231 to rotate, so that the wire feeding wheel 231 drives the rotating screw 23 to rotate, and then the rotating screw 23 drives the first arc-shaped clamp 241 to move on the surface of the sliding rod 24. During the movement, the first arc-shaped clamp 241 drives the second arc-shaped clamp 243 to move through the connecting cylinder 242, so that the first arc-shaped clamp 241 and the second arc-shaped clamp 243 on both sides clamp the porcelain insulator surface of the fuse, thereby preventing the shielding shell 1 from separating from the upper terminal of the drop-out fuse. For a specific embodiment three, please refer to Figures 1 to 10 Based on the 10kV drop-out fuse top terminal insulation shielding device with self-detection function provided in Specific Embodiment 2, this embodiment provides a further technical solution: The fall arrestor assembly 3 includes a liquid cylinder 31 fixedly connected to the surface of the first arc-shaped clamping plate 241. A compression disc 311 is slidably connected inside the liquid cylinder 31. A compression rod 312 is fixedly connected to the surface of the compression disc 311. A compression plate 313 is fixedly connected to the end of the compression rod 312 away from the compression disc 311. A first spring 314 is fixedly connected between the surface of the compression disc 311 and the interior of the liquid cylinder 31. The liquid cylinder 31 and the connecting cylinder 242 are connected via a connecting pipe 315. The fall arrestor assembly 3 also includes a lifting disc 32 slidably connected inside the connecting cylinder 242. A lifting rod is fixedly connected to the top of the lifting disc 32. 321, A mounting block 322 is fixedly connected to the top of the lifting rod 321. A push cylinder 33 is fixedly connected inside the mounting block 322. A sealing disc 331 is slidably connected inside the push cylinder 33. A push rod 332 is fixedly connected to one end of the sealing disc 331. A ball bearing 333 is provided at the end of the push rod 332 away from the sealing disc 331. A second spring 334 is fixedly connected between the end of the sealing disc 331 away from the push rod 332 and the inside of the push cylinder 33. A limiting groove is opened inside the push cylinder 33. A limiting protrusion is fixedly connected to the surface of the sealing disc 331. The limiting protrusion is located inside the limiting groove. It should be noted that the liquid cylinder 31 is provided with a guide liquid for the lifting plate 32 to move. When the first arc-shaped clamps 241 on both sides approach each other, the porcelain bottle squeezes the rolling ball 333. The rolling ball 333 drives the sealing plate 331 to move through the push rod 332, so that the limiting protrusion on the surface of the sealing plate 331 disengages from the inside of the limiting groove. To prevent damage to the umbrella-shaped skirt on the surface of the porcelain bottle caused by the aging of the first arc-shaped clamping plate 241 and the second arc-shaped clamping plate 243 due to environmental factors, the first arc-shaped clamping plate 241 and the second arc-shaped clamping plate 243 on both sides move closer to each other, causing the two side extrusion plates 313 to move through extrusion. The extrusion plates 313 drive the extrusion disc 311 to move through the extrusion rod 312, allowing the liquid inside the liquid cylinder 31 to enter the interior of one of the connecting cylinders 242 through the connecting pipe 315. At the same time, when the first arc-shaped clamping plate 241 moves, it extrudes the rolling ball 333 through the porcelain bottle, causing the rolling ball 333 to push against the second spring 334 through the push rod 332 and the sealing disc 331. When the liquid enters the interior of the connecting cylinder 242, it causes the lifting plate 32 to rise. The lifting plate 32 then drives the mounting block 322 and the pushing cylinder 33 to rise via the lifting rod 321. When the surface of the porcelain bottle is no longer in contact with the rolling ball 333, the second spring 334 is no longer compressed and returns to its original position. This moves the pushing rod 332 to the top of the porcelain bottle. Therefore, when the first arc-shaped clamp 241 and the second arc-shaped clamp 243 age due to environmental factors, the pushing rod 332 contacts the top of the porcelain bottle, thus supporting the first arc-shaped clamp 241 and the second arc-shaped clamp 243 and preventing them from falling and damaging the porcelain bottle skirt. For a specific implementation example, please refer to Implementation Example 4. Figures 1 to 12 Based on the 10kV drop-out fuse top terminal insulation shielding device with self-detection function provided in Specific Embodiment 3, this embodiment provides a further technical solution: The anti-wear component 4 includes a first rotating rod 41 rotatably connected inside the connecting box 111, a cup-shaped rod 411 fixedly connected to the surface of the first rotating rod 41, and a take-up reel 412 fixedly connected to the surface of the first rotating rod 41. The anti-wear component 4 also includes a second rotating rod 42 rotatably connected inside the connecting box 111 and a frame toothed plate 43 slidably connected inside the connecting box 111. A wicking reel 421 is fixedly connected to the surface of the second rotating rod 42, a second pull rope 422 is provided on the surface of the wicking reel 421, and one end of the second pull rope 422 away from the wicking reel 421 is fixedly connected to the surface of the take-up reel 412. A rotating gear 423 is fixedly connected to the surface of the second rotating rod 42, and the rotating gear 423 meshes with the frame toothed plate 43 for transmission. A reinforcing plate 431 is fixedly connected to one end of the frame toothed plate 43. To prevent the shielding shell 1 from swaying due to wind during windy weather, which could cause wear to the porcelain insulator caused by the first arc-shaped clamp 241 and the second arc-shaped clamp 243, the following measures are taken: In windy weather, the wind blows the cup-shaped rod 411, which in turn rotates the first rotating rod 41. This rotation of the first rotating rod 41 drives the take-up reel 412, which in turn collects the second pull rope 422 on its surface. During this collection process, the second pull rope 422 drives the cable laying reel 421 to rotate, thus laying the cable. Wheel 421 drives rotating gear 423 to rotate via second rotating rod 42, causing rotating gear 423 to move frame tooth plate 43, which in turn causes frame tooth plate 43 to move reinforcing plate 431 to one side of fuse waterproof cover. Therefore, when strong wind blows shielding shell 1, reinforcing plate 431 inside shielding shell 1 comes into contact with one side of fuse waterproof cover, thus preventing shielding shell 1 from shaking and preventing the first arc-shaped clamping plate 241 and the second arc-shaped clamping plate 243 from causing wear on porcelain insulator.

[0025] Working principle: In use, the insulating rod is inserted into the drive cylinder 121. The insulating rod drives the drive cylinder 121 and drive box 12 to move, causing the drive box 12 to move the shielding shell 1 to the upper terminal of the drop-out fuse. Then, the drive cylinder 121 is pushed, so that the shielding shell 1 shields and protects the upper terminal of the drop-out fuse. To prevent the shielding shell 1 from separating from the upper terminal of the drop-out fuse, the insulating rod is rotated. The insulating rod drives the drive rod 21 to rotate through the drive cylinder 121 and the hinge joint. When the drive rod 21 rotates, it drives the receiving wheel 211 to rotate, so that the receiving wheel 211 receives the first pull rope 232. During the receiving process, the first pull rope 232 drives the pay-off wheel 231 to rotate, so that the pay-off wheel 231 drives the rotating screw 23 to rotate. The rotation causes the rotating screw 23 to move the first arc-shaped clamp 241 on the surface of the sliding rod 24. During the movement, the first arc-shaped clamp 241 moves the second arc-shaped clamp 243 through the connecting cylinder 242, so that the first arc-shaped clamp 241 and the second arc-shaped clamp 243 on both sides clamp the porcelain insulator surface of the fuse, thereby preventing the shielding shell 1 from separating from the upper terminal of the drop-out fuse. When it is necessary to avoid the first arc-shaped clamp 241 and the second arc-shaped clamp 243 from aging due to environmental reasons and falling down, causing damage to the umbrella skirt on the surface of the porcelain insulator, as the first arc-shaped clamp 241 and the second arc-shaped clamp 243 on both sides approach each other, the pressing plates 313 on both sides move by pressing. The pressing plates 313 are driven by the pressing rod 312. The squeezing disc 311 moves, causing the liquid inside the liquid cylinder 31 to enter one of the connecting cylinders 242 through the connecting pipe 315. Simultaneously, the first arc-shaped clamping plate 241, as it moves, squeezes the rolling ball 333 through the porcelain bottle. This causes the rolling ball 333 to squeeze the second spring 334 via the push rod 332 and the sealing disc 331. Once the liquid enters the connecting cylinder 242, it causes the lifting disc 32 to rise. The lifting disc 32, through the lifting rod 321, causes the mounting block 322 and the push cylinder 33 to rise. When the surface of the porcelain bottle is no longer in contact with the rolling ball 333, the second spring 334 is no longer squeezed and returns to its original position, thus moving the push rod 332 to the top of the porcelain bottle. Therefore, when the first arc-shaped clamping plate 241 and the second arc-shaped clamping plate... When 243 ages due to environmental factors, the push rod 332 contacts the top of the porcelain bottle, thereby supporting the first arc-shaped clamp 241 and the second arc-shaped clamp 243, preventing them from falling and damaging the porcelain bottle's skirt. It is necessary to prevent the shielding shell 1 from swaying due to wind in windy weather, which could cause the first arc-shaped clamp 241 and the second arc-shaped clamp 243 to wear on the porcelain bottle. In windy weather, the wind blows the cup-shaped rod 411, which in turn drives the first rotating rod 41 to rotate. When the first rotating rod 41 rotates, it drives the take-up reel 412 to rotate, thus storing the second pull rope 422 on the surface of the take-up reel 412. During the storage process, the second pull rope 422 drives the cable tray 421 to rotate.The cable guide wheel 421 drives the rotating gear 423 to rotate via the second rotating rod 42. The rotating gear 423 then moves the frame toothed plate 43, which in turn moves the reinforcing plate 431 to one side of the fuse waterproof cover. Therefore, when a strong wind blows the shielding shell 1, the reinforcing plate 431 inside the shielding shell 1 comes into contact with one side of the fuse waterproof cover, preventing the shielding shell 1 from shaking and thus preventing the first arc-shaped clamping plate 241 and the second arc-shaped clamping plate 243 from causing wear on the porcelain insulator.

[0026] Any content not described in detail in this specification is prior art known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0029] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An insulation shielding device for the top terminal of a 10kV drop-out fuse with self-testing function, including: The shielding shell (1) and the protective box (11) fixedly connected to the surface and back of the shielding shell (1) are characterized in that: A connecting box (111) is fixedly connected to the surface of the protective box (11), and a drive box (12) is fixedly connected to one side of the protective box (11). An L-shaped baffle (13) is fixedly connected inside the shielding shell (1). A reinforcing component (2) is disposed inside the L-shaped baffle (13) to reinforce the connection between the shielding shell (1) and the fuse insulator. The reinforcing component (2) includes a sliding rod (24) fixedly connected inside the L-shaped baffle (13). A first arc-shaped clamp (241) is slidably connected to the surface of the sliding rod (24). A connecting cylinder (242) is fixedly connected to the bottom of the first arc-shaped clamp (241). A second arc-shaped clamp (243) is fixedly connected to the bottom of the connecting cylinder (242). The anti-fall component (3) is disposed on the surface of the first arc-shaped clamp (241) to prevent damage to the umbrella skirt on the surface of the fuse porcelain bottle due to aging of the first arc-shaped clamp (241) and the second arc-shaped clamp (243); The anti-wear component (4) is located inside the connecting box (111) to prevent the first arc-shaped clamp (241) and the second arc-shaped clamp (243) from shaking and causing wear to the fuse insulator due to strong winds.

2. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 1, characterized in that: A drive cylinder (121) is provided on one side of the drive box (12), a T-shaped groove is provided on the surface of the drive cylinder (121), and an insulating rod is provided inside the drive cylinder (121).

3. The 10kV drop-out fuse top terminal insulation shielding device with self-detection function according to claim 2, characterized in that: The reinforcement component (2) also includes a drive rod (21) rotatably connected inside the drive box (12) and a guide rod (22) fixedly connected inside the drive box (12). The drive rod (21) and the drive cylinder (121) are hinged together by a hinge joint. Two storage wheels (211) are fixedly connected to the surface of the drive rod (21).

4. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 3, characterized in that: The reinforcement component (2) also includes a rotating screw (23) rotatably connected between the protective box (11) and the L-shaped baffle (13). A wire feeding wheel (231) is fixedly connected to the surface of the rotating screw (23). A first pull rope (232) is provided on the surface of the wire feeding wheel (231). One end of the first pull rope (232) away from the wire feeding wheel (231) is fixedly connected to the surface of the storage wheel (211). The first arc-shaped clamp (241) is threadedly connected to the surface of the rotating screw (23).

5. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 1, characterized in that: The fall arrestor assembly (3) includes a liquid cylinder (31) fixedly connected to the surface of the first arc-shaped clamp (241). A pressure plate (311) is slidably connected inside the liquid cylinder (31). A pressure rod (312) is fixedly connected to the surface of the pressure plate (311). A pressure plate (313) is fixedly connected to one end of the pressure rod (312) away from the pressure plate (311). A first spring (314) is fixedly connected between the surface of the pressure plate (311) and the interior of the liquid cylinder (31). The liquid cylinder (31) and the connecting cylinder (242) are connected through a connecting pipe (315).

6. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 5, characterized in that: The fall arrestor assembly (3) also includes a lifting plate (32) slidably connected inside the connecting cylinder (242). A lifting rod (321) is fixedly connected to the top of the lifting plate (32). An installation block (322) is fixedly connected to the top of the lifting rod (321). A push cylinder (33) is fixedly connected inside the installation block (322).

7. The 10kV drop-out fuse top terminal insulation shielding device with self-detection function according to claim 6, characterized in that: A sealing disc (331) is slidably connected inside the push cylinder (33). A push rod (332) is fixedly connected to one end of the sealing disc (331). A ball bearing (333) is provided at the end of the push rod (332) away from the sealing disc (331). A second spring (334) is fixedly connected between the end of the sealing disc (331) away from the push rod (332) and the inside of the push cylinder (33).

8. The 10kV drop-out fuse top terminal insulation shielding device with self-detection function according to claim 7, characterized in that: The inside of the push cylinder (33) is provided with a limiting groove, and the surface of the sealing disc (331) is fixedly connected with a limiting protrusion, which is located inside the limiting groove.

9. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 1, characterized in that: The anti-wear component (4) includes a first rotating rod (41) rotatably connected inside the connecting box (111), a cup-shaped rod (411) fixedly connected to the surface of the first rotating rod (41), and a take-up reel (412) fixedly connected to the surface of the first rotating rod (41).

10. The insulation shielding device for the top terminal of a 10kV drop-out fuse with self-detection function according to claim 9, characterized in that: The wear-resistant component (4) includes a second rotating rod (42) rotatably connected inside the connecting box (111) and a frame toothed plate (43) slidably connected inside the connecting box (111). A wire feeding wheel (421) is fixedly connected to the surface of the second rotating rod (42). A second pull rope (422) is provided on the surface of the wire feeding wheel (421). One end of the second pull rope (422) away from the wire feeding wheel (421) is fixedly connected to the surface of the take-up wheel (412). A rotating gear (423) is fixedly connected to the surface of the second rotating rod (42). The rotating gear (423) meshes with the frame toothed plate (43) for transmission. A reinforcing plate (431) is fixedly connected to one end of the frame toothed plate (43).

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