A high-voltage fuse auxiliary installation device and method

Abstract

This invention discloses an auxiliary installation device and method for high-voltage fuses, belonging to the field of auxiliary installation technology for high-voltage power equipment. The device includes an insulating support main rod, with a fine-tuning alignment mechanism installed at the top of the main rod. An adaptive clamping mechanism is fixed at the top of the fine-tuning alignment mechanism, used for adaptively clamping the fuse tube. A fall protection mechanism is attached to the side wall of the adaptive clamping mechanism. A handheld control component is provided at the bottom of the insulating support main rod. The fine-tuning alignment mechanism is connected to the handheld control component via an insulating transmission rod passing through the inside of the main rod. The method includes the following steps: pre-operation debugging; coarse positioning; precise fine-tuning; tightening; demolding and removal. This invention, using the above-mentioned auxiliary installation device and method for high-voltage fuses, achieves integrated operation of stable fuse clamping, precise alignment, and fall protection, reducing the difficulty and risk of high-altitude operations and improving installation efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of auxiliary installation technology for high-voltage power equipment, and in particular to an auxiliary installation device and method for high-voltage fuses. Background Technology

[0002] High-voltage fuses are core protection devices for power distribution lines, widely used for overload and short-circuit protection in outdoor high-voltage transmission and distribution branches. Currently, the installation of high-voltage fuses in the industry relies on manual high-altitude operation using insulated operating rods, which has many technical drawbacks: First, the lack of positioning support during high-altitude operations leads to large misalignment between the fuse tube and the upper and lower contacts, easily resulting in problems such as loose connections, misalignment, and jamming. This results in low installation accuracy and, over time, overheating and sparking, potentially causing line faults. Second, manual hand operation has poor stability; wind disturbances at high altitudes and hand tremors can easily cause the fuse tube to fall or damage the equipment, posing extremely high safety risks. Third, the installation, locking, and alignment processes are separate, requiring multiple lifting and lowering operations and repeated adjustments. The work process is cumbersome, cannot be completed independently by a single person, and results in high labor costs and extremely low work efficiency.

[0003] In summary, existing high-voltage fuse installation technologies suffer from industry pain points such as poor alignment accuracy, low safety, weak versatility, low work efficiency, and high dependence on manual labor. There is an urgent need for a high-voltage fuse auxiliary installation device and method that is simple in structure, convenient in operation, and safe and reliable. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary installation device and method for high-voltage fuses, which solves the technical problems of complex structure, low alignment accuracy, poor safety, and cumbersome operation in existing high-voltage fuse high-altitude installation operations. It realizes the integrated operation of stable fuse clamping, precise alignment, and fall protection, reduces the difficulty and risk of high-altitude operations, and improves installation efficiency and quality.

[0005] To achieve the above objectives, the present invention provides an auxiliary installation device for high-voltage fuses, including an insulating support main rod, a fine-tuning alignment mechanism installed at the top of the insulating support main rod, an adaptive clamping mechanism fixed at the top of the fine-tuning alignment mechanism, the adaptive clamping mechanism being used to adaptively clamp the fuse tube, and the fine-tuning alignment mechanism being installed between the top of the insulating support main rod and the adaptive clamping mechanism to achieve three-way adjustment: horizontal rotation, vertical lifting, and forward and backward translation. The adaptive clamping mechanism has a fall protection mechanism attached to its side wall to form an outer ring for auxiliary locking; the bottom of the insulating support main rod is equipped with a hand-held control component, and the fine-tuning alignment mechanism is connected to the hand-held control component through an insulating transmission rod passing through the inside of the insulating support main rod. All adjustment actions are completed at the lower end of the device.

[0006] Preferably, the adaptive clamping mechanism includes a fixed clamping base, movable clamping arms symmetrically hinged to both sides of the fixed clamping base, an elastic buffer assembly, and an anti-slip insulating pad; the elastic buffer assembly is a compression spring, with both ends of the spring connected to the fixed clamping base and the movable clamping arms respectively, and the movable clamping arms on both sides are automatically retracted by the spring force to achieve adaptive clamping; the anti-slip insulating pad is fixed to the inner wall of the movable clamping arm, and the anti-slip insulating pad has an arc-shaped limiting groove adapted to the outer wall of the molten tube.

[0007] Preferably, the fine-tuning alignment mechanism includes a 360° rotating base, a vertical fine-tuning screw, a front and rear fine-tuning slider, and separate locking knobs; the rotating base realizes horizontal angle adjustment, the vertical fine-tuning screw realizes height fine-tuning of the molten tube, the front and rear fine-tuning slider realizes depth fine-tuning of the molten tube, and each adjustment pair is equipped with an independent locking knob.

[0008] Preferably, the vertical fine-tuning screw has an adjustment stroke of ±20mm, and the front and rear fine-tuning sliders have an adjustment stroke of ±15mm.

[0009] Preferably, the fall protection mechanism includes an insulating anti-detachment strap, an elastic tensioning element, and a buckle lock; one end of the insulating anti-detachment strap is fixed to the outside of the fixed clamp, and the other end is equipped with a buckle lock; the elastic tensioning element is located in the middle section of the insulating anti-detachment strap; the strap is locked by the buckle lock after wrapping around the outside of the fusible tube, forming a double-layer fall protection limiting structure with the inner clamping mechanism.

[0010] Preferably, the handheld control component includes a non-slip insulated grip sleeve and multiple control knobs, each control knob being connected to an insulated transmission rod, and the fine-tuning alignment mechanism can be remotely driven by moving the knobs.

[0011] Preferably, the insulating support rod is a telescopic sleeve structure made of epoxy glass fiber, with an overall telescopic length range of 1.2m to 2.5m. The rod body is a hollow cavity for passing through the insulating transmission rod and sensing circuit.

[0012] Preferably, the anti-slip insulating pad has an embedded pressure sensing module, and the handheld control component at the bottom of the insulating support rod integrates a micro digital display screen. The pressure sensing module is electrically connected to the digital display screen through built-in circuitry to provide real-time feedback on the clamping pressure value.

[0013] Preferably, the insulating anti-detachment strap is made of flexible insulating rubber, and the fall protection mechanism is a detachable independent accessory structure that can be removed and replaced separately from the clamping mechanism.

[0014] The present invention also provides an auxiliary installation method for high-voltage fuses, comprising the following steps: S1. Pre-operation debugging: Based on the installation height telescopic insulating support main rod, place the fusion tube between the movable clamping arms on both sides of the fixed clamping seat. The spring will automatically clamp the fusion tube. Wrap the strap around the tube and fasten the buckle lock. Check the clamping pressure of the digital display screen to a safe value. S2. Coarse positioning: The lifting device is moved to the fuse installation station, and the base is driven to rotate by the control knob at the lower end to complete the horizontal coarse positioning of the fuse tube. S3, Precise Fine Adjustment: The lower control knobs adjust the vertical lead screw and the front and rear sliders respectively, so that the two ends of the fuse tube are coaxially attached to the circuit contacts, and the locking knobs are tightened. S4. Fastening operation: The device continuously lifts and limits the fuse tube, and the operator completes the fuse wiring fastening operation. S5. Demolding and removal: After installation, first release the buckle lock to release the anti-detachment strap, then separate the clamp arm from the melting tube, lower the device to complete the disassembly, and check the installation quality.

[0015] Therefore, the present invention employs the above-mentioned auxiliary installation device and method for high-voltage fuses, and the technical effects are as follows: This invention solves the problems of misalignment caused by high-altitude wind disturbance and manual hand tremors at a low cost through a simplified three-dimensional fine-tuning structure; it eliminates the risk of the fusion tube falling from a height through a double protection structure of clamping and strapping; and it simplifies the high-altitude operation process and avoids the risks of high-altitude leaning operations through a low-position integrated control structure. At the same time, the addition of a pressure monitoring structure enables quantitative control of clamping force, representing a significant improvement over existing technologies. This invention cannot be derived using conventional techniques in this field and demonstrates outstanding inventiveness.

[0016] This invention integrates adaptive elastic clamping, multi-dimensional fine-tuning alignment, dual fall protection, and low-position remote control functions into one unit. The overall structure is simplified with no redundant parts. It features a unique and easy clamping and alignment structure that adapts to multiple specifications of fusible tubes. There are no similar or homogeneous technical solutions, and it has good novelty.

[0017] This invention features a simple overall structure, convenient disassembly and maintenance, and low manufacturing cost. A single person can independently complete the installation and disassembly of fuses, significantly improving work efficiency. Its insulation performance meets the 10kV-35kV high-voltage operation standards, is suitable for most outdoor fuse operation scenarios, has strong versatility, and is reusable. It effectively improves fuse installation accuracy, reduces the incidence of line faults, significantly reduces safety hazards in high-altitude operations, and meets the standardized operation requirements of the power industry, possessing strong engineering practicality and promotional value.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of an auxiliary installation device for high-voltage fuses according to the present invention; Figure 2 This is a flowchart of an embodiment of an auxiliary installation method for high-voltage fuses according to the present invention.

[0020] Figure Labels 1. Insulated support main rod; 2. Fixed clamp; 3. Movable clamp arm; 4. Compression spring; 5. Rotating base; 6. Insulated anti-slip strap; 7. Insulated grip sleeve; 8. Control knob. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example 1 like Figure 1 As shown, this embodiment provides an auxiliary installation device for high-voltage fuses. The overall structure is simple and has no complex transmission structure, which facilitates processing, disassembly and maintenance. The core is composed of an insulating support main rod 1, a fine-tuning alignment mechanism, an adaptive clamping mechanism, a fall protection mechanism and a handheld control component assembly. The whole device meets the 10kV-35kV high-voltage insulation operation standards and is suitable for the conventional installation conditions of outdoor drop-out high-voltage fuses.

[0024] In this embodiment, the insulating support main rod 1 is made of epoxy fiberglass material to form a telescopic sleeve structure. It has high overall insulation strength, light weight, anti-aging properties, and resistance to outdoor high and low temperature environments. The telescopic adjustment length range is 1.2m to 2.5m, which can be adapted to the fuse installation operation of towers of different heights. The insulating support main rod 1 is set as a hollow cavity structure. The cavity is reserved with space for wiring and transmission to arrange the insulating transmission rod and the sensing circuit of the pressure sensing module. It has a neat appearance and compact structure, effectively avoids interference from high-altitude lines, and reduces the overall weight of the device, reducing the burden on the operator's hand operation.

[0025] A fine-tuning alignment mechanism is fixedly installed at the top of the insulated support main pole 1. An adaptive clamping mechanism is fixedly assembled at the top of the fine-tuning alignment mechanism to achieve three-way precise alignment and adaptive clamping in one. An external anti-fall protection mechanism is fixed on the outer wall of the adaptive clamping mechanism to form an independent and detachable secondary anti-fall structure. A handheld control component is fixed at the bottom of the insulated support main pole 1. The fine-tuning alignment mechanism is linked with the bottom control structure through an insulated transmission rod that runs through the inside of the pole body to achieve low-level remote control and high-altitude non-contact fine-tuning, thus abandoning the high-risk operation method of traditional high-altitude manual adjustment.

[0026] In this embodiment, the adaptive clamping mechanism includes a fixed clamping base 2, two sets of symmetrically arranged movable clamping arms 3, an elastic buffer assembly consisting of compression springs 4, and an anti-slip insulating pad. The fixed clamping base 2 is rigidly fixed to the top of the fine-tuning alignment mechanism to ensure clamping stability; the two sets of movable clamping arms 3 are symmetrically hinged to one side of the fixed clamping base 2, enabling free opening and closing.

[0027] Compression spring 4, as the core elastic adaptive component, is fixedly connected to the inner hanging point of fixed clamp 2 at both ends. Under normal conditions, it relies on the spring force to drive the two sets of movable clamp arms 3 to maintain the closing trend. After the fusible tube is placed in, it can automatically open and adaptively tighten according to the outer diameter of the fusible tube. There is no need for manual threading or clamp replacement. It can be adapted to the mainstream 10kV and 35kV high-voltage fusible tubes with different outer diameters on the market, and has extremely strong versatility.

[0028] The inner side of the movable clamping arm 3 is fitted with an anti-slip insulating pad. An arc-shaped limiting groove is formed on the inner side of the anti-slip insulating pad, matching the arc-shaped structure of the outer wall of the fusible tube, ensuring a high degree of clamping fit and effectively preventing slippage and displacement during clamping. Simultaneously, a miniature pressure sensing module is embedded inside the anti-slip insulating pad. This module is connected to a miniature digital display screen on the bottom handheld control component via built-in sensing circuitry within the arm, allowing for real-time acquisition and display of clamping pressure values. This embodiment presets a safe clamping pressure range of 8N~15N. Pressure below 8N is considered loose and at risk of slippage, while pressure above 15N is considered too tight and could easily crush the ceramic body of the fusible tube. This achieves quantified and standardized control of clamping operations, eliminating the uncertainty of manual operation based on experience.

[0029] In this embodiment, the fine-tuning alignment mechanism is integrated between the insulating support main rod 1 and the adaptive clamping mechanism. It includes a rotating base 5, a vertical fine-tuning screw, a front and rear fine-tuning slider, and three sets of independent locking knobs. It can achieve three-dimensional precise adjustment of 360° horizontal rotation, vertical lifting, and front and rear translation, solving the defects of existing technology such as unidirectional adjustment, poor alignment accuracy, and deviation due to wind disturbance.

[0030] Among them, the rotating base 5 can achieve 360° horizontal free rotation, adapting to different towers and fuse installation positions with different tilt angles, and completing the rough alignment of the fuse tube horizontal angle; the vertical fine adjustment screw is set with a vertical fine adjustment stroke of ±20mm, which can accurately adjust the height position of the fuse tube and match the vertical installation gap of the upper and lower contacts; the front and rear fine adjustment slider is set with a front and rear translation stroke of ±15mm, which can adjust the contact depth between the fuse tube and the contact, ensuring that the fuse tube and the contact are completely in contact, without gaps or loose connections.

[0031] Each of the three adjustment mechanisms is equipped with an independent locking knob. After the operator completes the fine-tuning and alignment, the corresponding mechanism can be locked individually. The locking accuracy is high, with no springback or offset, ensuring that the position of the fusible tube remains fixed throughout the installation process. This completely solves the alignment deviation problem caused by wind disturbance at high altitudes and hand tremors. At the same time, all adjustment mechanisms are connected to the bottom control knob 8 via an insulated transmission rod. The operator can complete all fine-tuning operations from the ground or a low position, eliminating the need for raising the boom or leaning out at height, significantly reducing the safety risks of working at heights.

[0032] In this embodiment, the fall protection mechanism is an externally mounted, independently detachable structure, including an insulated anti-slip strap 6, an elastic tensioning element, and a buckle lock. The entire structure is made of flexible insulated rubber, ensuring adequate insulation performance and preventing damage to the ceramic body of the fusion tube. One end of the insulated anti-slip strap 6 is fixed to a pre-reserved installation point on the outside of the fixing clamp 2, and the other end is equipped with a buckle lock. The elastic tensioning element is installed in the middle section of the strap, maintaining tension in a normal state without any slack or redundancy.

[0033] After the clamping mechanism grips the fusible tube, the insulating anti-detachment strap 6 is wrapped around the outside of the fusible tube and quickly locked in place by the snap-lock, forming a double-layer anti-fall protection structure with the inner elastic clamping and the outer strap surrounding and limiting the movement. Compared with the single clamping anti-detachment structure of the prior art, the double protection of this embodiment can completely eliminate the problem of the fusible tube falling from a height due to slippage or loosening of the clamping arm. At the same time, this mechanism is a modular independent component, which can be disassembled and replaced individually when damaged, without the need to replace the entire clamping mechanism, greatly reducing the operation and maintenance costs of the device.

[0034] In this embodiment, the handheld control component is fixed to the bottom of the insulating support main rod 1, and includes an anti-slip insulating grip sleeve 7 and multiple control knobs 8. The surface of the anti-slip insulating grip sleeve 7 is provided with anti-slip texture to increase grip friction, making it less likely to slip during high-altitude operations, and also has insulation, anti-aging, and anti-slip properties. The multiple control knobs 8 correspond one-to-one with the insulating transmission rod of the three-dimensional micro-adjustment structure, respectively controlling horizontal rotation, vertical micro-adjustment, and forward and backward translation. The control logic is simple and easy to learn.

[0035] Meanwhile, the gripping area integrates an embedded micro digital display screen, which displays the clamping pressure value in real time. Operators can intuitively judge the clamping status, realize visual standardized operation, and adapt to the standardized operation and maintenance requirements of the power industry.

[0036] Combination Figure 2 The process flow shown in this embodiment illustrates the auxiliary installation method for high-voltage fuses. The specific operation steps are as follows: S1. Pre-operation debugging and preparation: According to the installation height of the tower on site, the operator adjusts the insulated support main pole 1 to a suitable length, checks the insulation integrity of the device, the flexibility of each fine adjustment structure, the elasticity of the spring, and the reliability of the anti-fall strap locking; places the high-voltage fuse tube to be installed between the two sets of movable clamping arms 3, and automatically and adaptively clamps the fuse tube by the elasticity of the compression spring 4. Then, wraps the insulated anti-detachment strap 6 around the outside of the fuse tube and fastens the buckle lock to complete the double fixation. Observe the bottom digital display screen to confirm that the clamping pressure is in the safe range of 8N~15N.

[0037] S2. Coarse positioning at the work station: The operator holds the bottom anti-slip insulated grip sleeve 7 and lifts the entire device steadily to the high-altitude installation position of the fuse. The operator drives the top rotating base 5 to rotate through the corresponding bottom control knob 8, and initially adjusts the horizontal angle of the fuse tube so that the two ends of the fuse tube are roughly aligned with the upper and lower contact bases of the line, thus completing the coarse alignment.

[0038] S3. Precise fine-tuning and alignment: Keep the device stable during lifting, and drive the vertical fine-tuning screw and the front and rear fine-tuning slider respectively through the bottom control knob 8 to make precise fine-tuning of the height and front and rear position of the fuse tube until both ends of the fuse tube are completely coaxially attached to the circuit contact and the gap is uniform and without deviation. Tighten the locking knobs in each position in sequence to lock the fine-tuning structure and fix the installation position of the fuse tube.

[0039] S4. Assisted fastening operation: The device stably supports and limits the fuse tube throughout the process, preventing the fuse tube from shaking, shifting, or falling. The operator uses the matching insulated tools to complete the fastening and locking of the buckles and bolts at both ends of the fuse. No manual support is required for the fuse tube, and a single person can complete the operation independently.

[0040] S5. Demolding and Quality Inspection: After the fuse is installed and tightened, first release the buckle lock of the anti-fall mechanism, release the insulating anti-detachment strap 6, then slightly open the movable clamping arms 3 on both sides to release the clamping and fixation, and slowly lower the device to complete the demolding; finally, manually check the flatness, tightness and fit of the fuse installation, and confirm that there are no loose connections, misalignment or looseness, and complete all installation work.

[0041] Therefore, the present invention adopts the above-mentioned high-voltage fuse auxiliary installation device and method to solve the technical problems of complex structure, low alignment accuracy, poor safety and cumbersome operation of existing high-voltage fuse high-altitude installation operations. It realizes the integrated operation of stable fuse clamping, accurate alignment and fall protection, reduces the difficulty and risk of high-altitude operation, and improves installation efficiency and installation quality.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A high-voltage fuse auxiliary installation device, characterized in that: The device includes an insulated support main rod, a fine-tuning alignment mechanism installed at the top of the insulated support main rod, an adaptive clamping mechanism fixed at the top of the fine-tuning alignment mechanism, the adaptive clamping mechanism being used to adaptively clamp the fusible tube, a fall protection mechanism hanging on the side wall of the adaptive clamping mechanism, and a handheld control component at the bottom of the insulated support main rod. The fine-tuning alignment mechanism is connected to the handheld control component through an insulated transmission rod passing through the inside of the insulated support main rod.

2. The high-voltage fuse auxiliary installation device according to claim 1, characterized in that: The adaptive clamping mechanism includes a fixed clamping base, movable clamping arms symmetrically hinged to one side of the fixed clamping base, an elastic buffer assembly, and an anti-slip insulating pad. The elastic buffer assembly is a compression spring, with both ends of the compression spring connected to the fixed clamping base and the movable clamping arm, respectively. The spring force drives the movable clamping arms on both sides to automatically retract, achieving adaptive clamping. The anti-slip insulating pad is fixed to the inner wall of the movable clamping arm, and the anti-slip insulating pad has an arc-shaped limiting groove adapted to the outer wall of the molten tube.

3. The high-voltage fuse auxiliary installation device according to claim 1, characterized in that: The fine-tuning alignment mechanism includes a 360° rotating base, a vertical fine-tuning screw, a front and rear fine-tuning slider, and separate locking knobs. The rotating base allows for horizontal angle adjustment, the vertical fine-tuning screw allows for fine-tuning of the height of the melting tube, and the front and rear fine-tuning sliders allow for fine-tuning of the depth of the melting tube. Each adjustment pair is equipped with an independent locking knob.

4. The high-voltage fuse auxiliary installation device according to claim 3, characterized in that: The vertical fine-tuning screw has an adjustment stroke of ±20mm, and the front and rear fine-tuning sliders have an adjustment stroke of ±15mm.

5. The high-voltage fuse auxiliary installation device according to claim 2, characterized in that: The fall protection mechanism includes an insulating anti-detachment strap, an elastic tensioning element, and a buckle lock. One end of the insulating anti-detachment strap is fixed to the outside of the fixed clamp, and the other end is equipped with a buckle lock. The elastic tensioning element is located in the middle section of the insulating anti-detachment strap. After the strap wraps around the outside of the fusible tube, it is locked by the buckle lock, forming a double-layer fall protection limiting structure with the inner clamping mechanism.

6. The high-voltage fuse auxiliary installation device according to claim 1, characterized in that: The handheld control component includes a non-slip insulated grip sleeve and multiple control knobs. Each control knob is connected to an insulated transmission rod, and the fine-tuning alignment mechanism can be remotely driven by moving the knobs.

7. The high-voltage fuse auxiliary installation device according to claim 1, characterized in that: The insulating support main rod is a telescopic sleeve structure made of epoxy glass fiber, with an overall telescopic length range of 1.2m to 2.5m. The rod body is a hollow cavity for passing through the insulating transmission rod and sensing circuit.

8. The high-voltage fuse auxiliary installation device according to claim 2, characterized in that: The anti-slip insulating pad has an embedded pressure sensing module, and the handheld control component at the bottom of the insulating support rod integrates a micro digital display screen. The pressure sensing module is electrically connected to the digital display screen through built-in circuitry to provide real-time feedback on the clamping pressure value.

9. The high-voltage fuse auxiliary installation device according to claim 5, characterized in that: The insulating anti-loosening strap is made of flexible insulating rubber, and the fall protection mechanism is a detachable and independent component structure.

10. A method for auxiliary installation of a high-voltage fuse, characterized in that, Using the apparatus according to any one of claims 1 to 9 includes the following steps: S1. Pre-operation debugging: Based on the installation height telescopic insulating support main rod, place the fusion tube between the movable clamping arms on both sides of the fixed clamping seat. The spring will automatically clamp the fusion tube. Wrap the strap around the tube and fasten the buckle lock. Check the clamping pressure of the digital display screen to a safe value. S2. Coarse positioning: The lifting device is moved to the fuse installation station, and the base is driven to rotate by the control knob at the lower end to complete the horizontal coarse positioning of the fuse tube. S3, Precise Fine Adjustment: The lower control knobs adjust the vertical lead screw and the front and rear sliders respectively, so that the two ends of the fuse tube are coaxially attached to the circuit contacts, and the locking knobs are tightened. S4. Fastening operation: The device continuously lifts and limits the fuse tube, and the operator completes the fuse wiring fastening operation. S5. Demolding and removal: After installation, first release the buckle lock to release the anti-detachment strap, then separate the clamp arm from the melting tube, lower the device to complete the disassembly, and check the installation quality.

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