An insulating cover for power surge arresters that can be installed without power interruption and an installation method thereof.

Abstract

This invention discloses an insulating cover and installation method for a surge arrester that enables uninterrupted power supply installation, relating to the field of power protection technology. It includes an insulating cover, an elastic automatic interlocking mechanism, mounting plates, and reinforcing plates. The insulating cover is integrally formed, with folding plates connected to the lower ends of the left and right side plates. The elastic automatic interlocking mechanism includes left and right interlocking modules, each connected by pressure plates and locking plates via connectors. The lock body has interlocking holes for locking. During installation, a linker pushes the cover horizontally into the top of the surge arrester, triggering the interlocking mechanism to automatically lock and fix it to the exposed metal parts without affecting the main insulation. This invention solves the problems of easy aging, poor insulation, and impact on main insulation in existing products. It offers reliable interlocking, long service life, and convenient operation, and can be extended to multiple fields, ensuring the safe operation of equipment.

Description

Technical Field

[0001] This invention relates to the field of power equipment insulation protection technology, specifically to an insulation cover and installation method for power surge arresters that can be installed without power interruption. It can be widely used for the insulation protection of surge arresters in power systems, and can also be extended to similar scenarios in other power and non-power fields that require reliable insulation protection. Background Technology

[0002] As a key component in power systems to withstand overvoltages and protect the safe operation of electrical equipment, surge arresters require insulating covers on their tops and clamps to isolate them from external environmental corrosion such as wind, rain, and foreign objects. Currently, most insulating covers on the market have technical defects and fail to meet actual operational requirements. Traditional silicone rubber insulating covers have two major problems: first, they cannot be installed without power interruption, requiring power outages for maintenance and repair, affecting the continuous operation of the power system; second, silicone rubber materials are prone to aging and cracking in outdoor environments, resulting in a short service life and frequent replacements, increasing maintenance costs.

[0003] To address the problems of existing traditional silicone rubber insulating covers, improved insulating covers are mainly divided into two categories. One type uses flexible silicone material. After the cover is opened with an installation tool, it automatically releases when pressed down, and then is locked in place by magnetic adsorption. This type of product still uses silicone material, failing to solve the problem of outdoor aging and cracking, thus limiting its service life. The other type uses rigid plastic material. After the cover is opened with an installation tool, it is fixed by utilizing the material's own elasticity to close the seal. However, because it relies on the material's elasticity to open and close the installation channel, the cover is generally designed to be thin, resulting in insufficient insulation performance in high-voltage scenarios. Furthermore, it is prone to creepage and discharge when foreign objects adhere to the surface or in humid environments such as heavy rain or fog, posing safety risks. In addition, both types of products share a common defect in their fixing methods: they require wrapping the equipment's own silicone insulating skirt for fixation, with the fixing contact point and force point all falling on the silicone rubber skirt. In humid environments such as rain or fog, this significantly shortens the main insulation distance of the equipment, leading to a decrease in the equipment's inherent main insulation performance and further exacerbating safety hazards.

[0004] In summary, existing products cannot simultaneously meet the requirements of uninterrupted power supply installation, high insulation performance, long service life, and reliable interlocking. There is an urgent need for a new type of insulating cover to solve the above-mentioned technical pain points. Summary of the Invention

[0005] The purpose of this invention is to overcome the technical defects of existing power surge arrester insulation covers and provide a power surge arrester insulation cover and installation method that enables uninterrupted installation, ensuring continuous and stable operation of the power system; improves the insulation performance and service life of the cover, adapting to high voltage levels and complex outdoor environments; achieves reliable mechanical interlocking through an independent interlocking mechanism, while avoiding the impact of fixed structures on the main insulation performance of the equipment and eliminating safety hazards; and broadens the product's application scope, covering similar protection scenarios in both power and non-power fields, and enhancing the comprehensiveness of the protection range.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] This invention provides an insulating cover for a power surge arrester that can be installed without power interruption. The surge arrester is connected to a surge arrester clamp at its upper end. The cover includes a transparent insulating cover that can be fitted over the top of the surge arrester and cover the surge arrester clamp. An elastic automatic locking mechanism is connected to the opening of the insulating cover. Moving the insulating cover allows the elastic automatic locking mechanism to engage at the top of the surge arrester and be limited by the surge arrester clamp to prevent the insulating cover from falling off. Mounting plates are connected to the insulating cover for easy installation and use.

[0008] Preferably, the insulating cover is open at the front and back and open at the bottom. The bottom of the insulating cover is open to form an opening. Folding plates that bend outward are connected to the left and right sides of the opening. The elastic automatic locking mechanism includes a left locking module and a right locking module. The left locking module and the right locking module are connected to the two folding plates respectively. The left locking module and the right locking module are closed to lock the device at the top of the surge arrester.

[0009] Preferably, the insulating cover includes a top plate and a left side plate and a right side plate connected to both sides of the top plate. The top plate, the left side plate and the right side plate form a structure that is open from front to back and open at the bottom. Two folding plates are respectively connected to the lower edge of the left side plate and the right side plate.

[0010] Preferably, both the left locking module and the right locking module include a top pressure plate and a locking plate; the pressure plate and the locking plate in the same locking module are respectively attached to the upper and lower surfaces of the same folding plate, and the pressure plate, the locking plate and the rear end of the folding plate are connected by a connector, and the locking plate can be rotated around the connector;

[0011] The folding plate has a first locking hole, and the lower end face of the pressure plate has a lock body. The lock body passes through the first locking hole and can rest against the locking plate below. The locking plate has a second locking hole that allows the lock body to pass through. When the left locking module and the right locking module are spliced ​​and locked, the lock body on the pressure plate can pass through the first locking hole and the second locking hole at the same time to lock the locking plate and prevent the insulating cover from falling off.

[0012] Preferably, each of the two locking pieces has an arc-shaped groove on one side where they can be fitted together, and the two arc-shaped grooves can fit and engage with the outer circumferential surface at the top of the surge arrester.

[0013] Preferably, each of the two snap-fit ​​pieces is connected to a positioning baffle on one side where they can be fitted together. The positioning baffle can be limited by the left and right side plates to prevent the angle between the two snap-fit ​​pieces from being too large.

[0014] Preferably, the mounting plate is connected to the rear end edge of the top plate and bent downwards, and the mounting plate is located between the left side plate and the right side plate.

[0015] Preferably, a reinforcing plate is connected between the left side plate and the right side plate, and the reinforcing plate is located at the rear end of the left side plate and the right side plate.

[0016] Preferably, the reinforcing plate extends from the lower edge of the right side plate to the lower edge of the left side plate and is bent and attached to the outer side of the left side plate to form a fixing part. A fixing member is connected to the fixing part to realize the connection and fixation between the reinforcing plate and the left side plate.

[0017] This invention provides an installation method for the insulating cover of a power surge arrester that enables uninterrupted power supply installation. The method includes the following steps:

[0018] Step 1): Separate the two locking plates in the elastic automatic locking mechanism to their maximum positions, with the positioning baffles on the two locking plates pressing against the left and right side plates respectively, and the lock body passing through the first locking hole and pressing against the lower locking plate, thus keeping the two locking plates in the open and closed state without shaking.

[0019] Step 2): Insert the mounting plate on the insulating cover into the link bar with the clamp-type mounting tool;

[0020] Step 3): Lift the linker until the insulating cover is raised to the same height as the right side of the surge arrester to be installed. The right side of the surge arrester is opposite to the direction of the connecting wire on the surge arrester clamp. Align the front end of the insulating cover with the top of the surge arrester and push it in horizontally.

[0021] First, the rear end of the arc-shaped groove on the locking piece contacts the top of the surge arrester and is squeezed by the top of the surge arrester. The two locking pieces rotate and gradually fit together. When the two locking pieces are fully fitted and lock the top of the surge arrester, the No. 1 locking hole and the No. 2 locking hole are aligned vertically. Then, the locking body part on the pressure plate can pass through the No. 1 locking hole and the No. 2 locking hole simultaneously under the elastic action of the pressure plate to lock the locking pieces. Finally, the two arc-shaped grooves after being fitted together are limited in the upward direction by the surge arrester clamp, so that the insulation cover cannot be dislodged, and the position is locked to prevent the insulation cover from falling off.

[0022] Step 4: Pull down the link bar. The installation plate will detach from the clamp in the pressure plate installation tool and can then be removed to complete the installation.

[0023] Preferably, the top plate, left side plate, right side plate, folding plate, reinforcing plate, and mounting plate are integrally formed, and preferably made of a transparent material with high weather resistance and high insulation.

[0024] Compared with the prior art, the present invention has the following significant advantages:

[0025] Reliable locking and robust structure: It adopts an elastic automatic locking mechanism independent of the insulation cover, abandoning the material's own elastic locking mode, and achieving reliable mechanical locking while ensuring the thickness and strength of the insulation cover; together with the limiting effect of the positioning baffle, arc-shaped slot and surge arrester clamp, the locking stability is further improved and the cover is prevented from falling off; the one-piece molded structure and reinforcing plate design enhance the overall strength and deformation resistance of the cover.

[0026] Ensuring main insulation performance and eliminating safety hazards: Through a unique fixing structure, the protective cover is fixed to the exposed metal parts or end face on the top of the surge arrester. There is no need to wrap the main insulation skirt of the equipment, the main insulation length is not shortened, and the inherent main insulation performance of the equipment is not affected. This completely solves the problem of the main insulation performance degradation in humid environments and improves the operational safety of power equipment.

[0027] Uninterrupted power supply (UDS) with wide adaptability: The structural design combined with the transparent insulating cover allows for uninterrupted installation using only clip-on installation tools and linkers. The process is simple and efficient, and protection work can be carried out without power interruption, ensuring continuous operation of the power system and reducing maintenance costs. At the same time, it is not limited to surge arrester protection and can be extended to other power and non-power fields, making it applicable to a wider range of scenarios. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is one of the state diagrams of the installation process of the insulating cover of the present invention.

[0030] Figure 3 This is the second state diagram of the installation process of the insulating cover of the present invention.

[0031] Figure 4 This is a diagram showing the completed installation process of the insulating cover of this invention. Detailed Implementation

[0032] The following will refer to the accompanying drawings in the embodiments of the present invention. Figures 1 to 4The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0034] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Invention content / principle:

[0036] I. Overall Structural Composition

[0037] The insulating cover for a surge arrester that allows for uninterrupted power supply installation according to this invention is made entirely of insulating and non-conductive material, such as acrylic. The core components include an insulating cover 1, an elastic automatic locking mechanism, a mounting plate 15, and a reinforcing plate 16. It can be fitted onto the top of the surge arrester and cover the surge arrester clamp 2. The elastic automatic locking mechanism engages and secures it to the top of the surge arrester. Combined with the mounting plate 15 and a clamp-type installation tool, uninterrupted power supply installation is achieved. The overall structure is stable and offers excellent protective performance. The top plate 6, left side plate 7, right side plate 8, folding plate 3, reinforcing plate 16, and mounting plate 15 are integrally formed, effectively improving structural strength and stability.

[0038] II. Structure and Function of Each Component

[0039] Insulating cover 1: Made of a transparent material with high lifespan, high weather resistance, and high insulation. The insulating cover 1 is open from front to back and open at the bottom. The open bottom forms an opening, and the left and right sides of the opening are respectively connected to outwardly bent folding plates 3.

[0040] The insulating cover 1 specifically includes a top plate 6, a left side plate 7, and a right side plate 8. The top plate 6, the left side plate 7, and the right side plate 8 enclose a cavity structure that is open at the bottom and runs through the front and back. Two folding plates 3 are respectively connected to the lower edges of the left side plate 7 and the right side plate 8, providing an installation carrier for the elastic automatic locking mechanism.

[0041] To further enhance structural stability, a reinforcing plate 16 is connected between the left side plate 7 and the right side plate 8. The reinforcing plate 16 is located at the rear end of both the left side plate 7 and the right side plate 8. The reinforcing plate 16 extends from the lower edge of the right side plate 8 to the lower edge of the left side plate 7, and after being bent, it fits against the outer surface of the left side plate 7 to form a fixing part. Fasteners are connected to the fixing part to achieve a firm connection between the reinforcing plate 16 and the left side plate 7, effectively improving the deformation resistance of the insulating cover 1 and adapting it to complex outdoor working conditions. In this application's technical solution, the fasteners are preferably screws, bolts, pins, etc., made of plastic that can prevent cracking and oxidation.

[0042] The flexible automatic interlocking mechanism, as the core interlocking component, is set independently of the insulating cover 1. This avoids relying on the elasticity of the cover itself for interlocking, ensuring that the thickness and strength of the insulating cover 1 are not affected, and achieving reliable mechanical interlocking. Specifically, the flexible automatic interlocking mechanism includes a left interlocking module 4 and a right interlocking module 5. The left interlocking module 4 and the right interlocking module 5 are respectively connected to the two folding plates 3. The closing action of the left interlocking module 4 and the right interlocking module 5 achieves engagement with the top of the surge arrester. After engagement, it is limited by the surge arrester clamp 2 to prevent the insulating cover 1 from falling off.

[0043] The left locking module 4 and the right locking module 5 have the same structure, both including a pressure plate 9 and a locking piece 10. In the same locking module, the pressure plate 9 is attached to the upper end face of the folding plate 3, and the locking piece 10 is attached to the lower end face of the folding plate 3. The pressure plate 9, the locking piece 10 and the rear end of the folding plate 3 are connected by a connector. The locking piece 10 can rotate flexibly around the connector to realize the opening and closing action. A locking hole 11 is provided on the folding plate 3. A locking body 13 protrudes from the lower end face of the pressure plate 9. The locking body 13 passes through the locking hole 11 and abuts against the locking piece 10 below. The locking piece 10 has a locking hole 14 that matches the locking hole 11. When the left locking module 4 and the right locking module 5 are spliced ​​and engaged, the locking body 13 can pass through the locking hole 11 and the locking hole 14 simultaneously under the elastic action of the pressure plate 9, thereby locking and fixing the locking piece 10. In this application, the connecting parts are preferably screws, bolts, pins, etc., made of plastic that can prevent cracking and oxidation. The locking piece 10 can rotate flexibly around the connecting parts. This can be achieved by: providing an annular groove on the outer circumference of the connecting parts, allowing the locking piece 10 to fit into the annular groove; or by using any feasible method that allows the locking piece 10 to rotate around the connecting parts. This technical structure is a conventional technical means and is not limited in this application.

[0044] Both locking tabs 10 have arc-shaped slots 17 on one side for engagement. After engagement, the two arc-shaped slots 17 can fit and engage on the outer circumference of the top of the surge arrester, improving the engagement fit and fixing stability. At the same time, both locking tabs 10 have positioning baffles 18 connected to one side for engagement. The positioning baffles 18 can be limited by the left side plate 7 and the right side plate 8 to prevent the locking tabs 10 from opening and closing too much, ensuring the accuracy of the locking action and ensuring a smooth installation process.

[0045] Mounting plate 15: Connected to the rear end edge of the top plate 6 and bent downwards, located between the left side plate 7 and the right side plate 8, it has a compact structure and can prevent branches and other debris from entering from the side of the insulating cover without affecting the overall protective performance of the cover. Mounting plate 15 is mainly used in conjunction with clamp-type installation tools to provide a stable connection point for uninterrupted power supply installation operations, facilitating high-altitude installation operations by using link rods to drive the cover. Link rods are insulating rods. This application does not impose specific limitations on clamp-type installation tools; any tool with an opening at the top that allows for easy insertion and secure clamping of mounting plate 15 can be selected according to actual conditions.

[0046] III. Installation Method

[0047] This invention employs an automatic interlocking installation method and fixing structure, abandoning the existing product's fixing mode that wraps around the main insulation of the equipment. Instead, the protective cover is fixed to the exposed metal parts or end face on the top of the surge arrester, without shortening the length of the main insulation or affecting its performance, thus completely eliminating safety hazards. The specific installation steps are as follows:

[0048] Step 1: Separate the two locking plates 10 in the elastic automatic locking mechanism to their maximum positions. At this time, the positioning baffles 18 on the two locking plates 10 respectively press against the left side plate 7 and the right side plate 8. After the lock body 13 passes through the first locking hole 11, it rests against the locking plate 10. Due to the pressing relationship between the lock body 13 and the locking plate 10, the opening and closing state of the locking plate 10 can be kept stable and does not shake, which is in preparation for subsequent installation.

[0049] Step 2: Fix the clamp-type installation tool to the link bar with bolts, insert the mounting plate 15 on the insulating cover 1 into the clamp-type installation tool to complete the reliable connection between the cover and the installation tool, and ensure that the cover does not fall off or shift during the installation process;

[0050] Step 3: Lift the linker and raise the insulating cover 1 to be flush with the right side of the surge arrester to be installed. This right side is opposite to the direction of the connecting wire on the surge arrester clamp 2. Then, align the front end of the insulating cover 1 with the top of the surge arrester and slowly push it in horizontally. During the pushing process, the rear end of the arc-shaped groove 17 on the locking piece 10 first contacts the top of the surge arrester. Under the pressure of the top body of the surge arrester, the two locking pieces 10 rotate around the connector and gradually fit together. As the pushing continues, the first locking hole 11 and the second locking hole 14 gradually... Gradually align; when the insulating cover 1 is pushed to the bottom, the two locking pieces 10 are completely joined together and locked onto the top of the surge arrester. The first locking hole 11 and the second locking hole 14 are vertically aligned. The locking piece 10 is no longer in the locking body part 13 of the pressure plate 9. Under the elastic action of the pressure plate 9, the locking body part 13 automatically passes through the first locking hole 11 and the second locking hole 14, locking the locking piece 10. At the same time, the arc-shaped groove 17 after being joined is limited in the upward direction by the surge arrester clamp 2, so as to lock the position of the insulating cover 1 and prevent it from falling off.

[0051] Step 4: Pull down the link bar, and the mounting plate 15 will disengage from the clamp of the clamp-type installation tool. Remove the installation tool to complete the entire live-line installation operation.

[0052] Example 1: The present invention will be further described in detail below with reference to specific embodiments. This example is only used to illustrate the present invention and does not constitute a limitation on the scope of protection of the present invention.

[0053] The uninterrupted power surge arrester insulation cover in this embodiment includes an insulation cover 1, an elastic automatic locking mechanism, a mounting plate 15, and a reinforcing plate 16. The assembly and usage of each component are as follows:

[0054] The insulating cover 1 is integrally molded from a highly weather-resistant and highly insulating transparent material, possessing good mechanical strength and environmental adaptability, and its transparency meets the needs of daily operation and observation. The insulating cover 1 is mainly composed of a top plate 6, a left side plate 7, a right side plate 8, and a folding plate 3. The top plate 6, left side plate 7, and right side plate 8 enclose a cavity that runs through the front and back and is open at the bottom. The folding plate 3 is integrally bent and formed with the left side plate 7 and right side plate 8 to ensure structural continuity and stability, and can be stably installed on top of the surge arrester and cover the surge arrester clamp 2.

[0055] The reinforcing plate 16 is made of the same material as the insulating cover 1. It extends from the lower edge of the right side plate 8 to the lower edge of the left side plate 7, then bends inward and fits against the outer side of the left side plate 7 to form a fixing part. The fixing part is connected and fixed to the left side plate 7 through fasteners, so that the left side plate 7 and the right side plate 8 form a stable whole that is not easy to deform. This effectively improves the structural strength of the insulating cover 1, avoids deformation under long-term outdoor use or external force, and ensures stable protective performance.

[0056] In the elastic automatic locking mechanism, the pressure plate 9 and the insulating cover 1 are made of the same material, and the lock body 13 is integrally formed with the pressure plate 9. It can achieve reset locking under elastic action, ensuring the reliability of locking. The elasticity of the pressure plate 9 is generated as follows: When the two locking plates 10 are not engaged, the lock body 13 on the pressure plate 9 passes through the first locking hole 11 and abuts against the lower locking plate 10. At this time, the lock body 13 on the pressure plate 9 is lifted by the locking plate 10, causing the pressure plate 9 to be slightly raised. When the two locking plates 10 are engaged, the first locking hole 11 and the second locking hole 14 are aligned vertically, and the lock body 13 on the pressure plate 9 is no longer lifted by the locking plate 10. Therefore, the pressure plate 9 returns to its original state, that is, the lock body 13 passes through the first locking hole 11 and the second locking hole 14 simultaneously under the elastic action of the pressure plate 9. The locking piece 10 is made of the same material as the insulating cover 1. The arc-shaped groove 17 is adapted to the outer circumference of the top of the surge arrester, allowing for a tight fit and fixation. The positioning baffle 18 is fixedly connected to the locking piece 10, ensuring effective limitation of the opening and closing angle of the locking piece 10 and preventing excessive opening and closing from affecting installation. The first locking hole 11 and the second locking hole 14 are matched in diameter, ensuring that the lock body 13 can be smoothly inserted and tightly locked, preventing loosening.

[0057] Mounting plate 15 is integrally formed with insulating cover 1 and is bent downwards between left side plate 7 and right side plate 8. Its size is compatible with the slot of clamp-type installation tool and can be accurately inserted into the slot to achieve a reliable connection with link bar, providing a stable support point for high-altitude installation operations and ensuring the stability of the cover's posture during installation.

[0058] During installation, first, fix the clamp-type installation tool to the link bar with bolts, and separate the two locking plates 10 to their maximum positions. At this time, the positioning baffles 18 press against the left side plate 7 and the right side plate 8 respectively, and the lock body 13 passes through the first locking hole 11 and rests against the locking plates 10 to keep the locking plates 10 in a stable open and closed state and prevent displacement before installation. Then, insert the installation piece 15 into the slot of the clamp-type installation tool. After confirming that the connection is firm, lift the link bar to raise the insulating cover 1 to the right side of the surge arrester to be installed, align it with the top of the surge arrester, and slowly push it in horizontally.

[0059] During the pushing process, the rear end of the arc-shaped slot 17 contacts and is compressed against the top of the surge arrester. The two locking pieces 10 slowly rotate around the rivet and gradually assemble, simultaneously driving the pressure plate 9 to move synchronously, so that the first locking hole 11 and the second locking hole 14 gradually align. When the insulating cover 1 is pushed to the bottom, the locking pieces 10 are completely assembled and tightly fit against the outer circumference of the top of the surge arrester. The first locking hole 11 and the second locking hole 14 are vertically aligned. The locking body 13 automatically passes through the two locking holes under the elastic action of the pressure plate 9, thereby locking the locking pieces 10. At the same time, the assembled arc-shaped slot 17 is limited by the surge arrester clamp 2, forming a double fixation to ensure that the insulating cover 1 cannot be dislodged, achieving position locking. Finally, the link is pulled down, the mounting piece 15 is disengaged from the installation tool, and the tool is smoothly withdrawn, completing the entire live-line installation operation.

[0060] The protective cover described in this embodiment has been tested and found to be securely and reliably locked without any loosening or falling off. Its insulation performance meets the standards, and it shows no signs of aging or deformation during long-term outdoor use. Furthermore, it does not affect the main insulation performance of the equipment. It can be adapted to surge arresters of various voltage levels and can be extended to other similar protection scenarios, fully meeting actual usage requirements.

[0061] Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of the present invention should be considered within the scope of protection of the present invention.

Claims

1. An insulating cover for a surge arrester that allows for uninterrupted power supply installation, wherein the upper end of the surge arrester is connected to a surge arrester clamp (2), characterized in that: Includes a transparent insulating cover (1), which can be fitted onto the top of the surge arrester and cover the surge arrester clamp (2). The opening of the insulating cover (1) is connected to an elastic automatic locking mechanism. Moving the insulating cover (1) can enable the elastic automatic locking mechanism to engage at the top of the surge arrester and be limited by the surge arrester clamp (2) to prevent the insulating cover (1) from falling off. The insulating cover (1) is connected to an mounting plate (15) for easy installation and use. The insulating cover (1) is open at the front and back and open at the bottom. The bottom of the insulating cover (1) is open to form an opening. The left and right sides of the opening are respectively connected to outwardly bent folding plates (3). The elastic automatic locking mechanism includes a left locking module (4) and a right locking module (5). The left locking module (4) and the right locking module (5) are respectively connected to the two folding plates (3). The left locking module (4) and the right locking module (5) are closed to lock the arrester at the top. The left locking module (4) and the right locking module (5) both include a top pressure plate (9) and a locking piece (10); the pressure plate (9) and the locking piece (10) in the same locking module are respectively attached to the upper and lower surfaces of the same folding plate (3), and the pressure plate (9), the locking piece (10) and the rear end of the folding plate (3) are connected by a connector, and the locking piece (10) can be rotated around the connector; The folding plate (3) has a first locking hole (11), and the lower end face of the pressure plate (9) has a lock body part (13). The lock body part (13) passes through the first locking hole (11) and can be pressed against the locking piece (10) below. The locking piece (10) has a second locking hole (14) for the lock body part (13) to pass through. When the left locking module (4) and the right locking module (5) are spliced ​​and locked, the lock body part (13) on the pressure plate (9) can pass through the first locking hole (11) and the second locking hole (14) at the same time to lock the locking piece (10) to prevent the insulating cover (1) from falling off. The installation method for the insulating cover of a power surge arrester that allows for uninterrupted power supply installation includes the following steps: Step 1): Separate the two locking plates (10) in the elastic automatic locking mechanism to the maximum position, and positioning baffles (18) on the two locking plates (10) respectively press against the left side plate (7) and the right side plate (8), and after passing through the first locking hole (11) through the lock body (13), press against the locking plate (10) below, so as to keep the two locking plates (10) in the open and closed state without shaking; Step 2): Insert the mounting plate (15) on the insulating cover into the link bar with the clip-on mounting tool; Step 3): Lift the link bar until the insulating cover is raised to the same height as the right side of the surge arrester to be installed. The right side of the surge arrester is opposite to the direction of the connecting wire on the surge arrester clamp (2). Align the front end of the insulating cover with the top of the surge arrester and push it in horizontally. First, the rear end of the arc-shaped groove (17) on the locking piece (10) first contacts the top of the surge arrester and is squeezed by the top of the surge arrester. The two locking pieces (10) rotate and gradually fit together. When the two locking pieces (10) are completely fitted together and lock the top of the surge arrester, the first locking hole (11) and the second locking hole (14) are aligned vertically. Then, the locking body part (13) on the pressure plate (9) can pass through the first locking hole (11) and the second locking hole (14) simultaneously under the elastic action of the pressure plate (9) to lock the locking piece (10). Finally, the two arc-shaped grooves (17) after being fitted together are limited by the surge arrester clamp (2) in the upward direction, so that the insulation cover (1) cannot be removed, and the position is locked to prevent the insulation cover (1) from falling off. Step 4: Pull down the link bar, and the installation piece (15) will detach from the clamp in the pressure plate (9) type installation tool, and can then be removed to complete the installation.

2. The insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 1, characterized in that: The insulating cover (1) includes a top plate (6) and a left side plate (7) and a right side plate (8) connected to both sides of the top plate (6). The top plate (6), the left side plate (7) and the right side plate (8) form a structure that is open at the bottom and runs through the front and back. Two folding plates (3) are respectively connected to the lower edge of the left side plate (7) and the right side plate (8).

3. The insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 1, characterized in that: The two locking pieces (10) are provided with arc-shaped slots (17) on one side of their corresponding engagement, and the two arc-shaped slots (17) can be fitted and engaged on the outer circumferential surface at the top of the surge arrester.

4. The insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 3, characterized in that: Each of the two snap-fit ​​pieces (10) is connected to a positioning baffle (18) on one side where they can be fitted together. The positioning baffle (18) can be limited by the left and right side plates (8) to prevent the angle between the two snap-fit ​​pieces (10) from being too large.

5. An insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 2, characterized in that: The mounting piece (15) is connected to the rear end edge of the top plate (6) and bent downwards, and the mounting piece (15) is located between the left side plate (7) and the right side plate (8).

6. The insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 2, characterized in that: A reinforcing plate (16) is connected between the left side plate (7) and the right side plate (8), and the reinforcing plate (16) is located at the rear end of the left side plate (7) and the right side plate (8).

7. An insulating cover for a power surge arrester that allows for uninterrupted power supply installation according to claim 6, characterized in that: The reinforcing plate (16) extends from the lower edge of the right side plate (8) to the lower edge of the left side plate (7) and is bent and attached to the outer side of the left side plate (7) to form a fixing part. The fixing part is connected to a fastener to achieve the connection and fixation between the reinforcing plate (16) and the left side plate (7).

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