Quick-change connector of high-voltage current-limiting fuse

Abstract

The invention discloses a high-voltage current-limiting fuse quick-change connector, and the connector comprises a dismounting tool which comprises a dismounting ring and a holding part, and the dismounting ring is installed on the holding part and is used for dismounting a high-voltage current-limiting fuse; the dismounting ring is provided with a dismounting bearing section, a mounting pressing section and a fusion tube inlet and outlet, and the dismounting bearing section and the mounting pressing section are sequentially connected in the anti-gravity direction and form an anti-escape groove used for limiting escape of a fusion tube of the high-voltage current-limiting fuse; the fusion pipe inlet and outlet is communicated with the external environment and the anti-escape groove and located between the disassembly bearing section and the installation pressing section. The risk that the high-voltage current-limiting fuse falls off when being disassembled can be reduced.

Description

Technical Field

[0001] This invention relates to the field of high-voltage fuse technology, and more particularly to a quick-change connector for a high-voltage current-limiting fuse. Background Technology

[0002] High-voltage current-limiting fuses are protective electrical devices in power systems. They can quickly melt and break the circuit during short-circuit faults, using the energy of the electric arc to generate high resistance, forcibly limiting the peak fault current and disconnecting the circuit before the current reaches its peak value. They are characterized by high breaking capacity, strong current-limiting characteristics, and fast operating speed, and are commonly used to protect equipment such as transformers and capacitors.

[0003] When disassembling a high-voltage current-limiting fuse, it is usually necessary for the operator to wear insulated protective equipment after the power is cut off before removing the fuse. However, there is a safety risk when the operator touches the high-voltage current-limiting fuse during the operation, and there is a risk that the fuse may fall off if the operator does not hold it firmly, which may easily lead to accidental damage to the high-voltage current-limiting fuse. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a quick replacement connector for high-voltage current-limiting fuses, which can reduce the risk of detachment when disassembling high-voltage current-limiting fuses.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] High-voltage current-limiting fuse quick-change connector, including: disassembly tools;

[0007] The disassembly tool includes a disassembly ring and a gripping part. The disassembly ring is installed on the gripping part and is used to disassemble and assemble the high-voltage current-limiting fuse. The disassembly ring has a disassembly support section, an installation clamping section, and a fusible tube inlet and outlet. The disassembly support section and the installation clamping section are connected sequentially along the anti-gravity direction to form an anti-escape groove for limiting the escape of the fusible tube of the high-voltage current-limiting fuse. The fusible tube inlet and outlet are connected to the external environment and the anti-escape groove and are located between the disassembly support section and the installation clamping section.

[0008] Furthermore, the disassembly ring is provided with a capping assembly, which includes a first horizontal pivot shaft, a stop block, and a first torsion spring. The first horizontal pivot shaft is rotatably connected to the disassembly ring, and the hinged end of the stop block is pivotally connected to the disassembly ring via the first horizontal pivot shaft, so that the swinging end of the stop block can move circumferentially around the first horizontal pivot shaft, thereby opening or closing the inlet and outlet of the melt tube. The first torsion spring is sleeved on the first horizontal pivot shaft and extends in the horizontal direction. One end of the first torsion spring is connected to the disassembly ring, and the other end of the first torsion spring is connected to the stop block, so that the swinging end of the stop block has a tendency to move closer to the inlet and outlet of the melt tube.

[0009] Furthermore, the disassembly ring is provided with a limiting component, which includes a second horizontal pivot shaft, a limiting post, and a second torsion spring; the disassembly ring has a clearance slot that connects to the external environment and the anti-escape groove, and the second horizontal pivot shaft is located in the clearance slot; the limiting post is rotatably connected to the disassembly ring through the second horizontal pivot shaft; one end of the limiting post extends into the anti-escape groove, and the other end of the limiting post is connected to a first hook; the swing end of the stop block is connected to a second hook, and the first hook is used to temporarily hook the second hook to prevent the swing end of the stop block from closing the inlet and outlet of the melting tube; the second torsion spring is sleeved on the second horizontal pivot shaft and extends horizontally; one end of the second torsion spring is connected to the disassembly ring, and the other end of the second torsion spring is connected to the limiting post, so that the end of the limiting post extending into the anti-escape groove tends to move away from the disassembly support section.

[0010] Furthermore, the disassembly tool also includes a connecting rod, and the disassembly ring, the connecting rod, and the gripping part are connected sequentially along the direction of gravity; the gripping part has multiple segments, and the multiple segments are arranged sequentially along the direction of gravity; adjacent segments are threadedly connected.

[0011] Furthermore, the high-voltage current-limiting fuse quick-change connector also includes a first adjustment assembly, which includes a first collar and a first positioning pin. The first collar is movably sleeved on the connecting rod so that the first collar slides horizontally relative to the connecting rod. The first collar is connected to the disassembly ring so as to drive the disassembly ring to slide horizontally relative to the connecting rod. The first positioning pin is threadedly connected to the first collar.

[0012] Furthermore, the high-voltage current-limiting fuse quick-change connector also includes a second adjusting assembly, which includes a second collar and a second positioning pin. The second collar is movably sleeved on the connecting rod to slide horizontally relative to the connecting rod. The second collar is connected to the gripping part to drive the gripping part to slide horizontally relative to the connecting rod. The second positioning pin is threadedly connected to the second collar.

[0013] Furthermore, the grip and the connecting rod are detachably connected.

[0014] Furthermore, at least two disassembly rings are provided, and the two disassembly rings are arranged at intervals along the horizontal direction; the gripping part is located between the two disassembly rings.

[0015] Furthermore, a first ball head is installed at the end of the disassembly support section located at the inlet and outlet of the melting pipe, and the cross-sectional area of ​​the first ball head along the horizontal plane is larger than the cross-sectional area of ​​the end of the disassembly support section along the horizontal plane; a second ball head is installed at the end of the installation clamping section located at the inlet and outlet of the melting pipe, and the cross-sectional area of ​​the second ball head along the horizontal plane is larger than the cross-sectional area of ​​the end of the disassembly support section along the horizontal plane.

[0016] Furthermore, the disassembly ring has an internal cavity, and the disassembly ring is a component made of metal material; both the outer wall of the disassembly ring and the outer wall of the gripping part are provided with an insulating layer.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The disassembly and assembly ring has a disassembly support section, an installation clamping section, and a fuse inlet / outlet. The disassembly support section is used to push out and support the high-voltage current-limiting fuse for disassembly, allowing it to be transported down for subsequent replacement or maintenance. The installation clamping section is used to place the high-voltage current-limiting fuse in a predetermined position and apply clamping force to fix it in place. The simultaneous presence of the disassembly support section and the installation clamping section eliminates the need for additional mechanical structures, allowing for both disassembly and installation of the high-voltage current-limiting fuse, thus simplifying the workflow and improving work efficiency.

[0019] 2. Based on the fact that the disassembly support section and the installation clamping section are connected sequentially along the anti-gravity direction to form an anti-escape groove for limiting the escape of the fuse tube of the high-voltage current-limiting fuse, the movement range of the high-voltage current-limiting fuse during operation can be physically limited by the anti-escape groove, so that the high-voltage current-limiting fuse is always within the limitation range of the anti-escape groove during disassembly or installation, thereby reducing the risk of the high-voltage current-limiting fuse accidentally falling off when disassembling or installing the high-voltage current-limiting fuse.

[0020] 3. The disassembly tool includes a disassembly ring and a gripping part. The disassembly ring is installed on the gripping part and has a disassembly support section, an installation clamping section, and a fusible tube inlet and outlet. The disassembly support section and the installation clamping section are connected sequentially along the anti-gravity direction to form an anti-escape groove for limiting the escape of the fusible tube of the high-voltage current-limiting fuse. The combination of various components forms a simple hook limiting structure. This simple hook limiting structure can firmly hold the high-voltage current-limiting fuse during disassembly, preventing the high-voltage current-limiting fuse from falling off during disassembly, thereby reducing the risk of the high-voltage current-limiting fuse accidentally falling off during disassembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the quick-replacement connector for the high-voltage current-limiting fuse of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 for Figure 1 A schematic diagram of the structure of the first and second ball heads.

[0024] In the diagram: 1. Disassembly tool; 2. Disassembly ring; 201. Disassembly support section; 202. Installation clamping section; 203. Fusion pipe inlet and outlet; 3. Grip part; 4. Anti-escape groove; 5. Cover assembly; 501. First horizontal pivot shaft; 502. Stop block; 6. Limiting assembly; 601. Second horizontal pivot shaft; 602. Limiting post; 7. First hook; 8. Second hook; 9. Connecting rod; 10. First adjustment assembly; 1001. First collar; 1002. First positioning pin; 11. Second adjustment assembly; 1101. Second collar; 1102. Second positioning pin; 12. First ball head; 13. Second ball head. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figures 1-3 The objective of this invention is achieved by the following technical solution in a preferred embodiment: a quick-change connector for a high-voltage current-limiting fuse, comprising: a disassembly tool 1;

[0029] The disassembly tool 1 includes a disassembly ring 2 and a gripping part 3. The disassembly ring 2 is installed on the gripping part 3 and is used for disassembling and assembling the high-voltage current-limiting fuse. The gripping part 3 is for the user to hold, providing a point of force application during operation. The gripping part 3 can be adjusted in length according to ergonomics to make the operation easier for the user. The disassembly ring 2 has a disassembly support section 201, an installation clamping section 202, and a fuse inlet / outlet 203. The disassembly support section 201 is used to push out the high-voltage current-limiting fuse for disassembly and support its removal for subsequent replacement or maintenance. The disassembly support section 201 can be designed with an arc-shaped structure to match the high-voltage current-limiting fuse, so as to more easily support the high-voltage current-limiting fuse; the installation clamping section 202 is used to apply clamping force after the high-voltage current-limiting fuse is placed in a predetermined position, thereby fixing the high-voltage current-limiting fuse; the disassembly support section 201 and the installation clamping section 202 are connected in sequence along the anti-gravity direction to form an escape-proof groove 4 for limiting the escape of the fuse tube of the high-voltage current-limiting fuse; the fuse tube inlet and outlet 203 are connected to the external environment and the escape-proof groove 4, and are located between the disassembly support section 201 and the installation clamping section 202. The escape-proof groove 4 physically restricts the movement range of the high-voltage current-limiting fuse during operation, thereby reducing the risk of accidental detachment during disassembly or installation. The disassembly tool 1, equipped with both a disassembly support section 201 and an installation clamping section 202, allows for simultaneous disassembly and installation of the high-voltage current-limiting fuse without the need for additional mechanical structures, simplifying the workflow and improving efficiency. Furthermore, the disassembly tool 1, using a simple hook-and-lock mechanism, securely holds the high-voltage current-limiting fuse, preventing it from detaching during disassembly and further reducing the risk of accidental detachment.

[0030] When using this invention, the operator grasps the gripping part 3 of the disassembly tool 1, moves the disassembly ring 2 to the high-voltage current-limiting fuse to be disassembled, then aligns the inlet / outlet 203 of the fusion tube with the high-voltage current-limiting fuse, allowing it to enter the anti-escape groove 4. Then, the disassembly support section 201 pushes out and supports the high-voltage current-limiting fuse, and the structure of the anti-escape groove 4 restricts the movement of the high-voltage current-limiting fuse to prevent accidental detachment. The disassembly tool 1 is then moved to the designated position to complete the disassembly of the high-voltage current-limiting fuse. When installing the high-voltage current-limiting fuse, it is first placed in the escape groove. The operator moves the disassembly ring 2 to the installation position by grasping the gripping part 3. After placing the high-voltage current-limiting fuse in the designated installation position, the pressure applied by the installation clamping section 202 is used to clamp the high-voltage current-limiting fuse. Finally, the high-voltage current-limiting fuse is sent out of the escape groove through the fusion tube inlet / outlet 203, thus completing the installation of the high-voltage current-limiting fuse.

[0031] The disassembly and assembly ring 2 has a disassembly support section 201, an installation clamping section 202, and a fusible pipe inlet and outlet 203. The disassembly support section 201 is used to push out and support the high-voltage current-limiting fuse for disassembly, so that it can be transported down for subsequent replacement or maintenance work. The installation clamping section 202 is used to place the high-voltage current-limiting fuse in a predetermined position and apply clamping force to fix the high-voltage current-limiting fuse. The disassembly support section 201 and the installation clamping section 202 are equipped at the same time, which can meet the two working conditions of disassembling and installing the high-voltage current-limiting fuse without the need for additional mechanical structures, thereby simplifying the workflow and improving work efficiency. Based on the disassembly support section 201 and the installation clamping section 202 being connected sequentially along the anti-gravity direction, an escape-proof groove 4 is formed to limit the escape of the fuse tube of the high-voltage current-limiting fuse. This structural setting of the escape-proof groove 4 can physically limit the range of movement of the high-voltage current-limiting fuse during operation, so that the high-voltage current-limiting fuse is always within the limitation range of the escape-proof groove 4 during disassembly or installation, thereby reducing the risk of the high-voltage current-limiting fuse accidentally falling off when disassembling or installing the high-voltage current-limiting fuse. The disassembly tool 1 includes a disassembly ring 2 and a gripping part 3. The disassembly ring 2 is installed on the gripping part 3. The disassembly ring 2 has a disassembly support section 201, an installation clamping section 202, and a fusible tube inlet and outlet 203. The disassembly support section 201 and the installation clamping section 202 are connected sequentially along the anti-gravity direction to form an anti-escape groove 4 for limiting the escape of the fusible tube of the high-voltage current-limiting fuse. The combination of various components forms a simple hook limiting structure. This simple hook limiting structure can firmly lock the high-voltage current-limiting fuse during the disassembly process, preventing the high-voltage current-limiting fuse from falling off during the disassembly process, thereby reducing the risk of the high-voltage current-limiting fuse accidentally falling off during the disassembly process.

[0032] Preferably, the disassembly ring 2 is provided with a capping assembly 5, which includes a first horizontal pivot shaft 501, a stop block 502, and a first torsion spring. The first horizontal pivot shaft 501 is rotatably connected to the disassembly ring 2. The hinged end of the stop block 502 is pivotally connected to the disassembly ring 2 through the first horizontal pivot shaft 501, so that the swinging end of the stop block 502 can move circumferentially around the first horizontal pivot shaft 501, thereby opening or closing the melt tube inlet / outlet 203. The first torsion spring is sleeved on the first horizontal pivot shaft 501 and extends in the horizontal direction. One end of the first torsion spring is connected to the disassembly ring 2, and the other end of the first torsion spring is connected to the stop block 502, so that the swinging end of the stop block 502 has a tendency to move closer to the melt tube inlet / outlet 203. By using the first torsion spring, the first horizontal pivot shaft 501, the stop block 502, and the first torsion spring together form a structure that can automatically reset. When the high-voltage current-limiting fuse enters the anti-escape groove 4 from the inlet / outlet 203 of the fuse tube, the characteristics of the first torsion spring are used to reset the stop block 502, thereby closing the inlet / outlet 203 of the fuse tube. This further restricts the range of movement of the high-voltage current-limiting fuse in the anti-escape groove 4, thereby further reducing the risk of the high-voltage current-limiting fuse falling out of the anti-escape groove 4 and improving the safety of using the disassembly tool 1.

[0033] Preferably, the disassembly ring 2 is provided with a limiting component 6, which includes a second horizontal pivot shaft 601, a limiting post 602, and a second torsion spring; the disassembly ring 2 has a clearance slot that connects to the external environment and the escape prevention groove 4, and the second horizontal pivot shaft 601 is disposed in the clearance slot; the limiting post 602 is rotatably connected to the disassembly ring 2 through the second horizontal pivot shaft 601, forming a seesaw-like swing structure around the axis; one end of the limiting post 602 extends into the escape prevention groove 4, and the other end of the limiting post 602... The first hook 7 is connected to the end of the stop block 502, and the second hook 8 is connected to the swing end of the stop block 502. The first hook 7 is used to temporarily hook the second hook 8 to prevent the swing end of the stop block 502 from closing the inlet and outlet of the melting tube 203. The second torsion spring is sleeved on the second horizontal pivot shaft 601 and extends in the horizontal direction. One end of the second torsion spring is connected to the disassembly ring 2, and the other end of the second torsion spring is connected to the limiting post 602, so that the end of the limiting post 602 that extends into the anti-escape groove 4 tends to move away from the disassembly support section 201. When disassembling a high-voltage current-limiting fuse, the first hook 7 can be temporarily hooked onto the second hook 8 to keep the normally open fuse inlet / outlet 203 of the stop block 502 in the open state. The normally open stop block 502 guides the high-voltage current-limiting fuse from the fuse inlet / outlet 203 into the anti-escape groove 4, reducing the time required for the user to align the fuse inlet / outlet 203 with the high-voltage current-limiting fuse, thereby improving work efficiency. After the high-voltage current-limiting fuse enters the anti-escape groove 4, it is pressed against the limiting post 602 under the action of gravity. As the limiting post 602 approaches the disassembly support section 201, the first hook 7 releases the second hook 8, causing the stop block 502 to reset and close the fuse inlet / outlet 203. This creates a closed-loop space in the anti-escape groove 4, thereby limiting the range of movement of the high-voltage current-limiting fuse within the anti-escape groove 4 and reducing the risk of the high-voltage current-limiting fuse falling out of the anti-escape groove 4 during disassembly.

[0034] Preferably, the disassembly tool 1 further includes a connecting rod 9. The disassembly ring 2, connecting rod 9, and gripping part 3 are connected sequentially along the direction of gravity. This arrangement ensures a reliable torque transmission path, thereby preventing deformation of the operator's movements due to bending of the overall structure, thus improving reliability. The gripping part 3 has multiple segments, which are arranged sequentially along the direction of gravity. Adjacent segments are connected by threads. The gripping part 3 is detachable, allowing for flexible adjustment of the total length of the disassembly tool 1. The number of segments can be increased or decreased according to specific circumstances, thus better applicable to more work scenarios and improving ease of use. Furthermore, the length of each segment is significantly reduced during transportation, allowing it to be placed in a standard-sized toolbox, thereby improving transportation convenience. As an alternative, a telescopic sleeve structure can also be used. The grip part 3 consists of multiple sliding telescopic sleeves, which can be fixed at the required length position by rotating the locking ring or pressing the locking pin. The length can be adjusted steplessly and the adjustment speed is fast. When stored, the volume after shrinking is compact, but the overall bending and torsional stiffness is lower than that of the threaded connection structure. During operation, the user may experience shaking, retraction and other phenomena, which will affect the operation accuracy. Therefore, it is better to use a multi-segment threaded connection.

[0035] Preferably, the high-voltage current-limiting fuse quick-change connector further includes a first adjusting assembly 10, which includes a first collar 1001 and a first positioning pin 1002. The first collar 1001 is movably sleeved on the connecting rod 9 so that the first collar 1001 slides horizontally relative to the connecting rod 9. The first collar 1001 is connected to the disassembly ring 2 so as to drive the disassembly ring 2 to slide horizontally relative to the connecting rod 9. The first positioning pin 1002 is threadedly connected to the first collar 1001. Through the cooperative arrangement of the slidable first collar 1001 and the first positioning pin 1002, the disassembly ring 2 can be controllably offset in the plane, thereby adapting to the disassembly of high-voltage current-limiting fuses of different lengths, thus improving ease of use. Furthermore, after the position is adjusted, reliable fixation can be achieved by tightening the first positioning pin 1002, ensuring that the disassembly ring 2 will not shift during disassembly without the need for additional mechanical structures, thereby improving the reliability and convenience of operation.

[0036] Preferably, the high-voltage current-limiting fuse quick-change connector further includes a second adjusting assembly 11, which includes a second collar 1101 and a second positioning pin 1102. The second collar 1101 is movably sleeved on the connecting rod 9 so as to slide horizontally relative to the connecting rod 9. The second collar 1101 is connected to the gripping part 3 so as to drive the gripping part 3 to slide horizontally relative to the connecting rod 9. The second positioning pin 1102 is threadedly connected to the second collar 1101. When a worker encounters an obstacle preventing direct disassembly of the high-voltage current-limiting fuse while using disassembly tool 1, the relative position of the gripping part 3 and the connecting rod 9 can be adjusted using the second adjusting assembly 11. This allows the gripping part 3 to move laterally away from the obstacle for disassembly work. Tightening the second positioning pin 1102 ensures a reliable connection between the gripping part 3 and the connecting rod 9 after adjustment, thereby improving the ease of use of disassembly tool 1. Furthermore, by adjusting the relative position of the gripping part 3 and the connecting rod 9, the overall torque transmission path of disassembly tool 1 can be optimized, allowing the user to perform disassembly work with easier force application and improving comfort.

[0037] Preferably, the gripping part 3 and the connecting rod 9 are detachably connected. This design allows for quick disassembly, repair, and replacement when the disassembly ring 2 or the connecting rod 9 is damaged, thereby improving work efficiency; and allows the gripping part 3 and the connecting rod 9 to be disassembled and transported after work, thereby improving transportation convenience; the detachable connection between the gripping part 3 and the connecting rod 9 can be a threaded connection, which has excellent self-locking properties and high connection reliability; it can also be a pin-type connection, which allows for quick installation or disassembly by simply inserting or pulling out, making operation simple; of course, other detachable methods can also be used depending on the specific situation.

[0038] Preferably, at least two disassembly rings 2 are provided, and the two disassembly rings 2 are spaced apart in the horizontal direction; the gripping part 3 is located between the two disassembly rings 2. When disassembling the high-voltage current-limiting fuse, a single disassembly ring 2 may experience uneven force, causing the disassembly ring 2 to tilt, which may lead to the high-voltage current-limiting fuse accidentally slipping off. Providing two disassembly rings 2 can simultaneously lift the high-voltage current-limiting fuse from both ends of the force-bearing position, thereby distributing the load evenly on the disassembly rings 2 and avoiding tilting of the disassembly rings 2 during operation, thus reducing the risk of the high-voltage current-limiting fuse accidentally slipping off. The arrangement of the gripping part 3 between the two disassembly rings 2 can avoid overturning caused by unilateral torque, thereby reducing the risk of the high-voltage current-limiting fuse accidentally falling off due to overturning.

[0039] Preferably, a first ball head 12 is installed at the end of the disassembly support section 201 located at the inlet / outlet 203 of the fuse pipe. The cross-sectional area of ​​the first ball head 12 along the horizontal plane is larger than the cross-sectional area of ​​the end of the disassembly support section 201 along the horizontal plane. The first ball head 12 can form an outwardly expanding downward guide surface. During the disassembly operation, when the disassembly tool 1 approaches the fuse from below, even if there is a certain horizontal or angular deviation, the bottom end of the high-voltage current-limiting fuse will first contact the spherical surface of the first ball head 12. Guided by the spherical curvature of the first ball head 12, the high-voltage current-limiting fuse will slide into the anti-escape groove 4, thus facilitating disassembly by the operator. Furthermore, the cross-sectional area of ​​the first ball head 12 along the horizontal plane is larger than the cross-sectional area of ​​the end of the disassembly support section 201 along the horizontal plane, thus ensuring that the high-voltage current-limiting fuse... During transportation after disassembly or before installation, the first ball head 12 can limit the range of movement of the high-voltage current-limiting fuse within the anti-escape groove 4, thereby reducing the risk of the high-voltage current-limiting fuse falling off the disassembly ring 2. The installation clamping section 202 is equipped with a second ball head 13 at the end of the inlet / outlet 203 of the fuse tube. The cross-sectional area of ​​the second ball head 13 along the horizontal plane is larger than the cross-sectional area of ​​the end of the disassembly support section 201 along the horizontal plane. The second ball head 13 at the end of the installation clamping section 202 forms an upper guide surface. During installation, when the disassembly tool 1 is placed on the high-voltage current-limiting fuse, the top of the high-voltage current-limiting fuse contacts the spherical surface of the second ball head 13, guiding the high-voltage current-limiting fuse to be aligned and smoothly inserted into the installation clamping section 202, thus facilitating the installation of the high-voltage current-limiting fuse by the staff.

[0040] Preferably, the disassembly ring 2 has an internal cavity and is made of metal. The internal cavity reduces the overall weight of the disassembly ring 2, thus reducing the difficulty of operation for workers. The metal construction ensures sufficient structural strength, preventing breakage or plastic deformation after repeated, high-intensity work, thereby improving the reliability of the disassembly ring 2. Both the outer wall of the disassembly ring 2 and the outer wall of the grip 3 are provided with insulating layers. By providing insulating layers to the outside of these conductive components, a reliable insulating barrier is constructed, ensuring electrical isolation between the worker and the contact area of ​​the disassembly tool 1, thereby improving worker safety during operation. The insulating layer can be made of vulcanized rubber, epoxy resin, or other suitable special engineering plastics.

[0041] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A quick-change connector for a high-voltage current-limiting fuse, characterized in that, include: The disassembly tool (1) includes a disassembly ring (2) and a gripping part (3). The disassembly ring (2) is installed on the gripping part (3) and is used to disassemble and assemble the high-voltage current-limiting fuse. The disassembly ring (2) has a disassembly support section (201), an installation clamping section (202), and a fuse inlet and outlet (203). The disassembly support section (201) and the installation clamping section (202) are connected in sequence along the anti-gravity direction and form an anti-escape groove (4) for limiting the escape of the fuse tube of the high-voltage current-limiting fuse. The fuse inlet and outlet (203) are connected to the external environment and the anti-escape groove (4) and are located between the disassembly support section (201) and the installation clamping section (202).

2. The quick-change connector for the high-voltage current-limiting fuse according to claim 1, characterized in that, The disassembly ring (2) is provided with a capping assembly (5), which includes a first horizontal pivot shaft (501), a stop block (502) and a first torsion spring. The first horizontal pivot shaft (501) is rotatably connected to the disassembly ring (2). The hinge end of the stop block (502) is pivotally connected to the disassembly ring (2) through the first horizontal pivot shaft (501) so that the swing end of the stop block (502) can move around the first horizontal pivot shaft (501) in the circumferential direction, thereby opening or closing the inlet and outlet of the melting tube (203). The first torsion spring is sleeved on the first horizontal pivot shaft (501) and extends in the horizontal direction. One end of the first torsion spring is connected to the disassembly ring (2), and the other end of the first torsion spring is connected to the stop block (502) so that the swing end of the stop block (502) has a tendency to move closer to the inlet and outlet of the melting tube (203).

3. The high-voltage current-limiting fuse quick-change connector according to claim 2, characterized in that, The disassembly ring (2) is provided with a limiting component (6), which includes a second horizontal pivot shaft (601), a limiting post (602), and a second torsion spring. The disassembly ring (2) has a clearance slot that connects to the external environment and the escape prevention groove (4). The second horizontal pivot shaft (601) is located in the clearance slot. The limiting post (602) is rotatably connected to the disassembly ring (2) through the second horizontal pivot shaft (601). One end of the limiting post (602) extends into the escape prevention groove (4), and the other end of the limiting post (602) is connected to a first hook (7). The swing end of the stop block (502) is connected to a second hook (8), and the first hook (7) is used to temporarily hook the second hook (8) to prevent the swing end of the stop block (502) from closing the inlet and outlet of the melting tube (203); the second torsion spring is sleeved on the second horizontal pivot shaft (601) and extends in the horizontal direction; one end of the second torsion spring is connected to the disassembly ring (2), and the other end of the second torsion spring is connected to the limiting post (602) so that the end of the limiting post (602) extending into the anti-escape groove (4) tends to move away from the disassembly support section (201).

4. The quick-change connector for the high-voltage current-limiting fuse according to claim 1, characterized in that, The disassembly tool (1) also includes a connecting rod (9), and the disassembly ring (2), the connecting rod (9) and the gripping part (3) are connected in sequence along the direction of gravity; the gripping part (3) has multiple segments, and the multiple segments are arranged in sequence along the direction of gravity; adjacent segments are threaded together.

5. The quick-change connector for the high-voltage current-limiting fuse according to claim 4, characterized in that, The high-voltage current-limiting fuse quick-change connector also includes a first adjustment assembly (10), which includes a first collar (1001) and a first positioning pin (1002). The first collar (1001) is movably sleeved on the connecting rod (9) so that the first collar (1001) slides horizontally relative to the connecting rod (9). The first collar (1001) is connected to the disassembly ring (2) so as to drive the disassembly ring (2) to slide horizontally relative to the connecting rod (9). The first positioning pin (1002) is threadedly connected to the first collar (1001).

6. The quick-change connector for the high-voltage current-limiting fuse according to claim 5, characterized in that, The high-voltage current-limiting fuse quick-change connector also includes a second adjustment assembly (11), which includes a second collar (1101) and a second positioning pin (1102). The second collar (1101) is movably sleeved on the connecting rod (9) to slide horizontally relative to the connecting rod (9). The second collar (1101) is connected to the gripping part (3) to drive the gripping part (3) to slide horizontally relative to the connecting rod (9). The second positioning pin (1102) is threadedly connected to the second collar (1101).

7. The high-voltage current-limiting fuse quick-change connector according to claim 4, characterized in that, The grip (3) and the connecting rod (9) are detachably connected.

8. The quick-change connector for the high-voltage current-limiting fuse according to claim 1, characterized in that, At least two disassembly rings (2) are provided, and the two disassembly rings (2) are arranged at intervals in the horizontal direction; the gripping part (3) is located between the two disassembly rings (2).

9. The quick-change connector for the high-voltage current-limiting fuse according to claim 1, characterized in that, The disassembly support section (201) is equipped with a first ball head (12) at the end of the melting pipe inlet / outlet (203), and the cross-sectional area of ​​the first ball head (12) along the horizontal plane is greater than the cross-sectional area of ​​the end of the disassembly support section (201) along the horizontal plane; the installation clamping section (202) is equipped with a second ball head (13) at the end of the melting pipe inlet / outlet (203), and the cross-sectional area of ​​the second ball head (13) along the horizontal plane is greater than the cross-sectional area of ​​the end of the disassembly support section (201) along the horizontal plane.

10. The quick-change connector for the high-voltage current-limiting fuse according to claim 1, characterized in that, The disassembly ring (2) has an internal cavity and is a component made of metal material; the outer wall of the disassembly ring (2) and the outer wall of the gripping part (3) are both provided with an insulating layer.

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