A tool for installing and removing a drop-out fuse cover

Abstract

This utility model relates to the field of power equipment technology, specifically to an installer / remover for a drop-out fuse protective cover. It includes two opposing main rods connected by a connecting rod, allowing relative rotation between the connecting rod and the main rod via pins and shafts. A tension spring connects the two main rods, with the spring located below the connecting rod. Each main rod has an upward-facing component at its front end, with the upward-facing components on each main rod facing each other. A handheld position is located at the lower end of each main rod. A locking mechanism is provided between the two main rods, allowing adjustment of the distance between the components at the front ends of the main rods. This utility model features convenient installation and removal of the drop-out fuse protective cover, and simple operation.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a device for installing and removing a drop-out fuse protective cover. Background Technology

[0002] High-altitude drop-out fuses refer to drop-out fuses installed and operated on utility poles, which can disconnect or connect lines under normal circumstances. In power distribution network construction, the terminals of pole-mounted drop-out fuses are explicitly required to be insulated. The conventional solution is to install prefabricated insulating sleeves made of silicone rubber or heat-shrinkable material. However, these sleeves, by encasing and sealing the terminals of the pole-mounted drop-out fuses, affect heat dissipation and temperature measurement operations. Furthermore, because of their non-transparent material, they tightly wrap around the insulating sleeves of the drop-out fuse poles during operation, obstructing the view of maintenance personnel and preventing them from directly observing the tightness of the terminals, whether the insulating sleeves are cracked, and other equipment defects, thus creating potential operational hazards.

[0003] Patent number ZL202120807031.3, entitled "A Drop-Out Fuse Protective Cover and Installation Tool," discloses a drop-out fuse protective cover and installation tool. The protective cover has an integrally molded structure. The main body of the protective cover is a U-shaped shell with openings at both ends. The umbrella skirt is a semi-circular groove with an opening on one side, used to engage the umbrella skirt of the drop-out fuse insulating sleeve. Both radial sides of the semi-circular groove have stop surfaces. The sides of the first and second retaining rings each have retaining ring openings for engaging the insulating posts on both sides of the umbrella skirt. The retaining ring openings, the semi-circular groove openings, and the U-shaped opening of the protective cover main body are all located on one side of the drop-out fuse protective cover. This disclosed drop-out fuse protective cover is a one-piece molded structure, eliminating unnecessary installation components. It effectively meets the insulation shielding requirements of the drop-out fuse terminals, making installation faster and more efficient. The protective cover structure, with first and second retaining rings on both sides of the umbrella skirt, effectively ensures the protective cover tightly engages with the drop-out fuse insulation sleeve, preventing slippage or loosening. However, this structure's installation tools can only accommodate one specification. Since there are many different specifications of drop-out fuses used in lines, protective covers come in various styles, sizes, and lengths, requiring multiple tools for installation, which is inconvenient. Furthermore, after long-term use, some protective covers of different specifications become damaged and fail to provide protection, posing safety hazards. Removal at heights is also very difficult; currently, no tool can effectively remove high-altitude protective covers. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a device for installing and removing drop-out fuse protective covers that is suitable for effective installation and removal.

[0005] The design of this utility model is as follows: two main rods are arranged opposite each other and are movably connected by a connecting rod, that is, the connecting rod and the main rods can rotate relative to each other through a pin and a shaft; the two main rods are also connected by a tension spring, and the tension spring is located below the connecting rod; an upward component is provided at the front end of each main rod, which can extend into the hook outside the protective cover; the upward components on each main rod are facing each other; a handheld position is provided at the lower end of each main rod; a karaoke mechanism is provided between the two main rods, and the movement of the karaoke mechanism can adjust the distance between the components at the front end of the main rods.

[0006] The movement of the KLA mechanism can adjust the distance between the components at the front end of the main rod. It can be designed as follows: a locking rod is provided between the two main rods, located below the connecting rod. One end of the locking rod is connected to one of the main rods, and the other end is free to move. When the other end of the locking rod contacts the other main rod, they are connected by a magnetic element. The distance between the components on the main rods is just enough to fit into the hooks on both sides of the protective cover, so that the distance between the components at the front end of the main rods is minimized when the main rods are in an inactive state. During operation, the locking rod is opened by external force. The karaoke mechanism can also be designed as follows: A stop rod is provided between the two main rods, located below the connecting rod. One end of the stop rod is fixed to one of the main rods, and the other end of the stop rod has a slot along its length. The slot is connected to the other main rod by a pin, allowing relative movement along the pin. A lever is provided on the stop rod, and the lever can rotate relative to the connection point of the stop rod. When the lever is horizontally positioned, the other end of the lever contacts the main rod closest to the slot. When the lever is pushed upward by a link bar or insulating rod, the lever is not in a horizontal position. Under the action of the spring, the pin of the stop rod is displaced, and the distance between the two components at the front end of the main rod is at its maximum, i.e., the protective cover is in an open state. The protective cover can be removed by moving the removal tool. To facilitate the link bar pushing the lever, a large top plate is provided on the lever.

[0007] Protective covers come in various sizes and specifications. To accommodate the removal of covers of different specifications, the connecting rod is made of two sections. The two main rods are movably connected by the two connecting rod sections. Each main rod has a fixed connecting rod section. One section of the connecting rod has positioning holes at different locations, and the other section has mounting holes. The two connecting rod sections are hinged through positioning holes, mounting holes, pins, or bolts and nuts. By connecting different positioning holes, the distance between the hooks at the front end of the main rod can be adjusted to achieve different specifications. Alternatively, the connecting rod can be a single rod. One end of the connecting rod is fixedly connected to one main rod, and the other end of the connecting rod has different holes. The other end of the connecting rod is rotatably connected to another main rod through pins, bolts, and nuts, which also serves to adjust the distance between the two hooks at the front end of the main rod.

[0008] To provide more support for the protective cover, a support rod is provided on each main rod and below the component. The distance between each support rod and the component is no greater than the length of the protective cover, and the length of each support rod is no greater than the distance between the component and the main rod to which it is connected.

[0009] The working principle of this utility model is as follows: When installing the protective cover, the protective cover is in a non-open state, and the locking mechanism is reset. At this time, the distance between the components at the front end of the main rod is the smallest, and the components extend into the two hooks on the outside of the protective cover. Use an insulated tool to push up and open the top piece or locking rod on the lever so that one end of it is separated from the main rod. Under the action of the spring, the main rod undergoes relative displacement, the distance between the components at the front end of the main rod increases, and the protective cover is opened. Move the tool of this utility model to the set position of the protective cover, and reverse the operation of this utility model to return it to the state where the distance between the components at the front end of the main rod is the smallest. The removal is the reverse operation of the installation.

[0010] The present invention relates to a device for installing and removing drop-out fuse protective covers, which features quick installation and removal and simple operation. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of a drop-out fuse protective cover;

[0012] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0013] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Example 1:

[0016] like Figure 1 , 2As shown, this utility model discloses an assembly / disassembly device for a drop-out fuse protective cover, including two main rods 3 arranged opposite each other. The two main rods 3 are movably connected by a connecting rod 6. The connecting rod 6 is a single unit, with one end fixedly connected to one main rod 3 and the other end having different holes 7. The other end of the connecting rod 6 is rotatably connected to the other main rod 3 by a pin or bolt and nut. The two main rods 3 are also connected by a tension spring 4, which is located below the connecting rod 6. An upward-pointing component 9 is provided at the front end of each main rod 3, which can extend into the hook 2 on the outside of the protective cover 1. The upward-pointing component 9 on each main rod 3... The components 9 are aligned; each main rod 3 has a handheld position 5 at its lower end; a locking mechanism is provided between the two main rods 3, which is designed as follows: a locking rod 10 is provided between the two main rods 3, the locking rod 10 is located below the connecting rod 6, one end of the locking rod 10 is connected to one of the main rods 3, and the other end is free to move. When the other end of the locking rod 10 contacts the other main rod 3, they are connected together by a magnetic element. The distance between the components 9 on the main rod 3 is just enough to extend into the hooks 2 on both sides of the protective cover 1, so that the distance between the components 9 at the front end of the main rod 3 is minimized when the main rod 3 is in an inactive state. When working, the locking rod 10 is opened by external force.

[0017] To provide more support for the protective cover 1, a support rod 8 is provided on each main rod 3 and below the component 9. The distance between each support rod 8 and the component 9 is no greater than the length of the protective cover 1, and the length of each support rod 8 is no greater than the distance between the component 9 and the main rod 3 to which it is connected.

[0018] The working principle of this utility model is as follows: When installing the protective cover 1, the protective cover 1 is in a non-open state, and the karaoke mechanism is reset. At this time, the distance of the component 9 at the front end of the main rod 3 is the smallest. The component 9 extends into the two hooks 2 on the outside of the protective cover 1. The lever is used to push the lever 10 upward, so that the main rod 3 undergoes relative displacement under the action of the spring, the distance of the component 9 at the front end of the main rod 3 increases, and the protective cover 1 is opened. Move the tool of this utility model to the protective cover 1 to the set position, and reverse the operation of this utility model to make it return to the state where the distance of the component 9 at the front end of the main rod 3 is the smallest. The removal is the reverse operation of the installation.

[0019] Example 2:

[0020] like Figure 1 , 3As shown, this utility model discloses a device for installing and removing a drop-out fuse protective cover, including two main rods 3 arranged opposite each other. The two main rods 3 are movably connected by two connecting rods 6, that is, each main rod 3 is fixedly provided with a connecting rod 6. One of the connecting rods 6 has positioning holes 7 at different positions, and the other has mounting holes. The two connecting rods 6 are hinged through positioning holes 7, mounting holes, pins or bolts and nuts. The two main rods 3 are also connected by a tension spring 4, which is located below the connecting rods 6. An upward component 9 is provided at the front end of each main rod 3. The component 9 can extend into the hook 2 on the outside of the protective cover 1. The upward components 9 on each main rod 3 are facing each other. A handheld position 5 is provided at the lower end of each main rod 3. A locking mechanism is provided between the two main rods 3. The locking mechanism is designed as follows: a stop rod 11 is provided between the two main rods 3, and the stop rod 11 is located on the connecting rod. Below 6, one end of the stop rod 11 is fixed to one of the main rods 3, and the other end of the stop rod 11 has a slot 14 in the length direction. The slot 14 is connected to another main rod 3 by a pin. The slot 14 can move relative to the pin. A lever 12 is provided on the stop rod 11. The lever 12 can rotate relative to the connection point of the stop rod 11. When the lever 12 is set horizontally, the other end of the lever 12 contacts the main rod 3 near the slot 14. A slot is provided at the contact position of the main rod 3. When the lever 12 is pushed upward by the link bar, the lever 12 is not in a horizontal position. The stop rod 11 is displaced by the pin under the action of the spring. The distance between the two components 9 at the front end of the main rod 3 is at its maximum, that is, the protective cover 1 is in the open state. The protective cover 1 can be removed by moving the disassembly tool. In order to make it easier for the link bar to push the lever 12, a large-area top plate 13 is provided on the lever 12.

[0021] To provide more support for the protective cover 1, a support rod 8 is provided on each main rod 3 and below the component 9. The distance between each support rod 8 and the component 9 is no greater than the length of the protective cover 1, and the length of each support rod 8 is no greater than the distance between the component 9 and the main rod 3 to which it is connected.

[0022] The working principle of this utility model is as follows: When installing the protective cover 1, the protective cover 1 is in a non-open state, and the karaoke mechanism is reset. At this time, the distance of the component 9 at the front end of the main rod 3 is the smallest. The component 9 extends into the two hooks 2 on the outside of the protective cover 1. Use the link bar to push up and move the top piece 13 on the lever 12 so that one end of it is disengaged from the slot on the main rod 3. As a result, under the action of the spring, the main rod 3 undergoes relative displacement, the distance of the component 9 at the front end of the main rod 3 increases, and the protective cover 1 is opened. Move the tool of this utility model to the protective cover 1 to the set position, and reverse the operation of this utility model to make it return to the state where the distance of the component 9 at the front end of the main rod 3 is the smallest. The removal is the reverse operation of the installation.

Claims

1. A device for installing and removing a drop-out fuse protective cover, characterized in that, It includes two opposing main rods connected by a connecting rod, which allows relative rotation between the connecting rod and the main rod via a pin and shaft. A tension spring connects the two main rods, with the spring located below the connecting rod. Each main rod has an upward-facing component at its front end, with the upward-facing components on each main rod facing each other. Each main rod has a handheld position at its lower end. A karaoke mechanism is provided between the two main rods, and the movement of this mechanism adjusts the distance between the components at the front ends of the main rods.

2. The device for installing and removing a drop-out fuse protective cover according to claim 1, characterized in that, The KLA mechanism includes a locking rod, which is located between two main rods and below the connecting rod. One end of the locking rod is connected to one of the main rods, while the other end is free to move. When the other end of the locking rod contacts the other main rod, they are connected by a magnetic element.

3. The device for installing and removing a drop-out fuse protective cover according to claim 1, characterized in that, The karaoke mechanism includes a stop rod, which is located between two main rods and below the connecting rod. One end of the stop rod is fixed to one of the main rods, and the other end of the stop rod has a slot along its length. The slot is connected to the other main rod by a pin, and the slot can move relative to the pin. A lever is provided on the stop rod, and the lever can rotate relative to the connection point of the stop rod. When the lever is set horizontally, the other end of the lever contacts the main rod closest to the slot. A top plate is provided on the lever.

4. A device for installing or removing a drop-out fuse protective cover according to any one of claims 1 to 3, characterized in that, The connecting rod consists of two sections. The two main rods are movably connected by the two connecting rod sections. That is, each main rod is fixedly equipped with a connecting rod section. One section of the two connecting rods has positioning holes at different positions, and the other section has mounting holes. The two connecting rods are hinged through positioning holes, mounting holes, pins or bolts and nuts.

5. A device for installing or removing a drop-out fuse protective cover according to any one of claims 1 to 3, characterized in that, The connecting rod is a single rod. One end of the connecting rod is fixedly connected to a main rod, and the other end of the connecting rod has different holes. The other end of the connecting rod is rotatably connected to another main rod through a pin or bolt and nut.

6. A device for installing or removing a drop-out fuse protective cover according to any one of claims 1 to 3, characterized in that, A support rod is provided on each main rod and below the component. The distance between each support rod and the component is no greater than the length of the protective cover, and the length of each support rod is no greater than the distance between the component and the main rod to which it is connected.

7. The device for installing and removing a drop-out fuse protective cover according to claim 4, characterized in that, A support rod is provided on each main rod and below the component. The distance between each support rod and the component is no greater than the length of the protective cover, and the length of each support rod is no greater than the distance between the component and the main rod to which it is connected.

8. The device for installing and removing a drop-out fuse protective cover according to claim 5, characterized in that, A support rod is provided on each main rod and below the component. The distance between each support rod and the component is no greater than the length of the protective cover, and the length of each support rod is no greater than the distance between the component and the main rod to which it is connected.

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