A variable top cover for preventing falling ice

Abstract

The utility model discloses a kind of huabian top covers of anti-falling ice, to solve the weak point of structural strength existing in the top cover of current top cover when encountering fan tower cylinder upper end ice falling, complex structure and high cost problem.The top cover of the utility model includes including lower layer protection component, upper layer protection component and support frame, support frame is set below lower layer protection component, lower layer protection component is connected with upper layer protection component, and support frame is fixed with lower layer protection component;Upper layer protection component includes upper layer cover plate and reinforcing part, upper layer cover plate is set at the top of lower layer protection component, and reinforcing part is fixedly set at the top of upper layer cover plate.Through the hierarchical cooperation of three-layer structure, the destructive power of falling ice impact is resisted in stages and levels, upper layer protection component first breaks ice block, support frame then buffers remaining impact force, and lower layer protection component finally bears residual load, improve the ability of overall anti-falling ice impact, avoid top cover to be damaged due to falling ice direct impact.

Description

Technical Field

[0001] This utility model relates to the field of substation equipment technology, specifically to a substation top cover designed to prevent ice from falling and hitting the substation. Background Technology

[0002] Wind power and photovoltaic power generation, as clean new energy sources, are widely used in areas of my country rich in wind resources. These areas experience extremely low winter temperatures, sometimes below -40°C, making it easy for condensation and ice to form on the surfaces of wind turbine towers and blades. When temperatures rise slightly, ice blocks on the towers may break off and fall freely. According to industry standards, Huabian substations (hereinafter referred to as Huabian) are typically located at least 5 meters away from the center of the wind turbine tower, making their roofs highly susceptible to being struck by falling ice.

[0003] The existing technology for the transformer's roof has limited structural strength, making it highly susceptible to damage from the immense impact of falling ice from high altitudes, resulting in significant economic losses in power generation. Alternatively, adding a protective canopy above the transformer would increase additional costs and structural complexity. Utility Model Content

[0004] (a) Purpose of the utility model The purpose of this invention is to provide a modified roof cover for preventing ice impacts and falls, aiming to solve the problems of low structural strength, complex structure and high cost in existing roof covers.

[0005] (II) Technical Solution To solve the above problems, this utility model provides a Huabian top cover for preventing ice impacts and falls, including a lower protective component, an upper protective component, and a support frame. The upper protective component is disposed above the lower protective component, the support frame is disposed below the lower protective component, the lower protective component is connected to the upper protective component, and the support frame is fixed to the lower protective component; The upper protective assembly includes an upper cover plate and a reinforcing part. The upper cover plate is disposed on top of the lower protective assembly, and the reinforcing part is fixedly disposed on top of the upper cover plate.

[0006] Preferably, the upper cover plate includes a first cover plate and a second cover plate, which are inclined toward both sides of the top cover.

[0007] Preferably, the first cover plate and the second cover plate are each composed of a plurality of detachable sub-plates, and the reinforcing part is fixedly provided on each sub-plate.

[0008] Preferably, the reinforcing part includes a plurality of reinforcing angle steels, which are fixed in parallel to the top of the partition plate, and the plurality of reinforcing angle steels, the first cover plate, and the second cover plate are all inclined toward the sides of the top cover.

[0009] Preferably, the support frame includes a support skeleton and buffer reinforcing ribs; The supporting frame is fixedly connected to the bottom of the upper protective component; The buffer reinforcement rib is fixed to the lower surface of the lower protective component and connected to the support frame.

[0010] Preferably, the buffer reinforcement includes multiple vertical ribs and multiple horizontal ribs, which are connected to each other to form a grid-like support frame.

[0011] Preferably, the multiple vertical reinforcing bars are located directly below the multiple reinforcing angle steels and are arranged in a one-to-one correspondence.

[0012] Preferably, the lower protective component and the upper protective component together form a heat-insulating cavity, and the heat-insulating cavity is filled with heat-insulating cotton.

[0013] Preferably, the top cover further includes a lifting ring assembly, which is fixedly connected to the side of the top cover.

[0014] Preferably, the lifting ring assembly includes a connecting seat and a lifting ring body. The connecting seat is fixedly connected to the lower protective assembly, and the lifting ring body is integrally formed or welded to the connecting seat. The top of the lifting ring body is higher than the upper protective assembly.

[0015] (III) Beneficial Effects The above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. Through the hierarchical cooperation of the three-layer structure, the destructive force of falling ice impact is resisted in stages and layers. The upper protective component breaks the ice first, and the impact force of the ice is directly transmitted to the support frame through the upper protective component. The lower protective component bears the residual load in the middle, which improves the overall resistance to falling ice impact and avoids the top cover being damaged by the direct impact of falling ice.

[0016] 2. The upper protective components, support frame and lower protective components each form a relatively independent module. If the upper protective component is partially damaged, it can be disassembled and replaced separately without large-scale operations on the entire top cover or lower protective components, saving maintenance time and costs.

[0017] 3. Integrating functions such as anti-fall and ice impact, load-bearing, and sealing, it can adapt to the installation size and usage environment of Huabian equipment. It can be directly applied to the top cover modification of existing Huabian equipment or the top cover configuration of new equipment without the need for large-scale modification of the original Huabian enclosure, and has good versatility and adaptability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a Huabian top cover for preventing ice impacts according to the present invention; Figure 2 yes Figure 1 A schematic enlarged view of part A in the middle; Figure 3 This is a schematic diagram of the internal structure of a Huabian top cover for preventing ice impacts according to the present invention; Figure 4 yes Figure 3 A schematic enlarged view of part B in the middle.

[0019] Figure label: 1. Lower layer protective components; 2. Upper protective assembly; 21. Upper cover plate; 21a. Sub-plate; 211. First cover plate; 212. Second cover plate; 22. Reinforcing part; 221. Reinforcing angle steel; 3. Support frame; 31. Support skeleton; 32. Buffer reinforcement; 321. Vertical slab reinforcement; 322. Horizontal slab reinforcement; 4. Lifting ring assembly; 41. Lifting ring body. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0022] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Combination Figures 1 to 4 This utility model provides a protective cover for preventing ice from falling and hitting the top cover, which includes a lower protective component 1, an upper protective component 2 and a support frame 3; The upper protective component 2 is positioned above the lower protective component 1, and the support frame 3 is positioned below the lower protective component 1. The lower protective component 1 is connected to the upper protective component 2, and the support frame 3 is fixed to the lower protective component 1. The upper protective assembly 2 includes an upper cover plate 21 and a reinforcing part 22. The upper cover plate 21 is disposed on top of the lower protective assembly 1, and the reinforcing part 22 is fixedly disposed on top of the upper cover plate 21.

[0025] Specifically, the lower protective component 1 serves as the basic load-bearing and sealing structure of the top cover, providing bottom support; the upper protective component 2 is positioned above the lower protective component 1, directly bearing the impact of falling ice. The upper cover plate 21 is the impact-bearing base, and the reinforcing part 22 is used to break the falling ice and disperse the impact force; the support frame 3 is located between the upper protective component 2 and the lower protective component 1, buffering the impact force of the falling ice and preventing it from being directly transmitted to the lower protective component 1. Through the hierarchical structure of the upper protective component 2, the support frame 3, and the lower protective component 1, these three components form a layered impact-resistant protection system. Falling ice first impacts the reinforcing part 22 of the upper protective component 2, and after breaking, the impact force is transmitted through the upper cover plate 21 to the support frame 3. The support frame 3 further disperses and weakens the impact force before transmitting it to the lower protective component 1, thus achieving the function of preventing falling ice from hitting the component.

[0026] Through this design, the three-layer structure of the roof works in a hierarchical manner to resist the destructive force of falling ice in stages and layers. The upper protective component 2 first breaks the ice, and the impact force of the ice is directly transmitted to the support frame 3 through the upper protective component 2. For example, the upper protective component 2 is directly connected to the support frame on all four sides, and the lower protective component 1 bears the residual load in the middle, improving the overall resistance to falling ice impact and preventing the roof from being damaged by direct impact from falling ice. For example, when a large piece of ice falls, the reinforcing part 22 can break it into smaller pieces, reducing the impact force of a single piece of ice, while the support frame 3 absorbs part of the impact force, significantly reducing the force on the lower protective component 1. In addition, the upper protective component 2, the support frame 3, and the lower protective component 1 each form a relatively independent module. If the upper protective component 2 is partially damaged, it can be disassembled and replaced individually without large-scale operations on the entire roof or the lower protective component 1, saving maintenance time and costs. Meanwhile, it integrates functions such as anti-fall and ice impact protection, load bearing, and sealing, and can be adapted to the installation size and usage environment of Huabian. It can be directly applied to the top cover modification of existing Huabian equipment or the top cover configuration of new equipment without the need for large-scale modification of the original Huabian enclosure, and has good versatility and adaptability.

[0027] In a preferred embodiment, the upper cover 21 includes a first cover 211 and a second cover 212, which are inclined toward the sides of the top cover.

[0028] Specifically, the first cover plate 211 and the second cover plate 212 are inclined to the sides of the top cover, so that after the falling ice impacts the cover plate, it will slide to the sides of the top cover under its own weight and the guidance of the inclined structure, thus preventing the ice from accumulating on the cover plate. At the same time, the inclined structure can also decompose the impact force of the falling ice to a certain extent, converting the vertical impact force into a component force along the inclined plane, reducing the vertical impact load on the cover plate.

[0029] This design allows the inclined cover plate structure to automatically slide off broken ice to both sides, preventing it from accumulating on the top cover. This prevents ice from piling up and falling again, or from causing continuous damage to the top cover due to melting and refreezing. For example, in icy environments, the inclined structure ensures that broken ice fragments are promptly drained after each impact, keeping the top cover surface free of ice buildup. The inclined cover plate decomposes the vertical impact force of falling ice into a component perpendicular to the cover plate and a component along the inclined surface of the cover plate, thereby reducing the vertical load on the cover plate and minimizing the risk of deformation or damage caused by vertical impact, extending the service life of the upper cover plate 21. In addition to ice drainage, this inclined structure also guides rainwater to drain quickly to both sides during rainy weather, preventing water accumulation on the top cover surface and avoiding corrosion or leakage caused by water accumulation, thus improving the waterproof performance and durability of the top cover.

[0030] In a preferred embodiment, the first cover plate 211 and the second cover plate 212 are each composed of a plurality of detachable sub-plates 21a, and each sub-plate 21a is fixedly provided with a reinforcing part 22.

[0031] Specifically, the first cover plate 211 and the second cover plate 212 are composed of multiple detachable sub-plates 21a, and each sub-plate 21a is fixed with a reinforcing part 22. In this way, when a sub-plate 21a is damaged, the sub-plate 21a can be removed and replaced separately without removing the entire upper cover plate 21.

[0032] With this design, the detachable design of the sub-plate 21a allows for local replacement of damaged parts. Maintenance does not require operation of the entire upper protective component 2, improving maintenance efficiency and reducing downtime caused by top cover maintenance. For example, if a sub-plate 21a is damaged by falling ice, only that sub-plate 21a needs to be disassembled and replaced, while other sub-plates 21a can continue to work normally, reducing maintenance costs. The modular design of the sub-plate 21a makes the top cover structure flexible, facilitating the transportation and installation of the top cover structure.

[0033] In a preferred embodiment, the reinforcing part 22 includes a plurality of reinforcing angle steels 221, which are fixed in parallel to the top of the partition plate 21a. The plurality of reinforcing angle steels 221, the first cover plate 211, and the second cover plate 212 are all inclined toward the sides of the top cover.

[0034] Specifically, multiple reinforcing angle steels 221 are fixed in parallel to the top of the partition plate 21a, and together with the first cover plate 211 and the second cover plate 212, they are tilted to both sides of the top cover. The sharp edges of the reinforcing angle steels 221 can break the falling ice, and the tilted angle steels can also guide the broken ice to slide to both sides. At the same time, the structure of the angle steels can enhance the overall strength of the partition plate 21a and withstand the impact of falling ice.

[0035] This design ensures that the sharp corners of the reinforcing angle steel 221 quickly break falling ice into smaller pieces, distributing the impact force across multiple angle steels and the dividing plate 21a. This prevents damage to any single area from excessive impact. For example, when large, hard ice blocks fall, the angle steel can cut and break them, allowing the impact force to be borne by multiple angle steels simultaneously, reducing the stress on any single angle steel. The combination of the reinforcing angle steel 221 and the dividing plate 21a enhances the bending and impact resistance of the dividing plate 21a, enabling the upper cover plate 21 to withstand greater ice impact loads and extending the service life of the upper protective component 2. The inclined reinforcing angle steel 221, while breaking up ice blocks, guides the ice fragments to slide to both sides along the angle steel's inclination direction. Combined with the inclined dividing plate 21a, this further ensures that ice fragments do not accumulate on the top cover, maintaining the cleanliness and safety of the top cover surface.

[0036] In a preferred embodiment, the support frame 3 includes a support skeleton 31 and a buffer reinforcing rib 32; the support skeleton 31 is fixedly connected to the bottom of the upper protective component 2; the buffer reinforcing rib 32 is fixed to the lower surface of the lower protective component 1 and connected to the support skeleton 31.

[0037] Specifically, the support frame 31 is fixed to the bottom of the upper protective component 2 and directly bears the impact force transmitted by the upper protective component 2; the buffer reinforcing rib 32 is fixed to the lower surface of the lower protective component 1 and connected to the support frame 31, playing the role of buffering and dispersing the impact force, dispersing the impact force transmitted from the support frame 31 to a larger area of ​​the lower protective component 1, and avoiding local stress concentration.

[0038] With this design, the support frame 3 ensures that the impact force of the upper protective component 2 is not directly transmitted to the lower protective component 1. Instead, it is buffered and dispersed by the support frame 31 and the buffer reinforcement 32 before being transmitted, effectively protecting the lower protective component 1 and preventing it from being damaged by directly bearing large impact forces. The support frame 31 and the buffer reinforcement 32 together constitute the support structure between the upper protective component 2 and the lower protective component 1, improving the overall rigidity of the entire roof. This results in less deformation of the roof when subjected to impacts from falling ice, its own weight, and hoisting loads, maintaining structural stability. The buffer reinforcement 32 buffers the impact force of the upper protective layer 2 while supporting multiple areas of the lower protective component 1, preventing the lower protective component 1 from bearing excessive local loads and causing fatigue damage, extending the service life of the lower protective component 1, and also improving the overall durability of the roof.

[0039] In a preferred embodiment, the buffer reinforcement 32 includes multiple vertical ribs 321 and multiple horizontal ribs 322, with the vertical ribs 321 and horizontal ribs 322 interconnected to form a grid-like support frame.

[0040] Specifically, multiple vertical ribs 321 and horizontal ribs 322 are interconnected to form a grid-like support frame. The grid structure can disperse the impact force in multiple directions, avoiding the force from being concentrated on a certain point or a certain rib. At the same time, the grid frame has high structural rigidity and can effectively buffer and withstand the impact force.

[0041] This grid-like support frame disperses impact forces in multiple directions, significantly reducing the force borne by each vertical stiffener 321 and horizontal stiffener 322. This reduces localized stress in the structure and prevents stiffeners from breaking or deforming due to excessive stress. For example, when an impact force acts on a grid node, it is transmitted to the surrounding stiffeners, ensuring that the stress on each stiffener remains within acceptable limits. Simultaneously, the grid structure exhibits excellent spatial stability. Compared to a single-direction stiffener structure, it has stronger resistance to deformation and can maintain its shape under impact, ensuring the continued effectiveness of the buffering function of the support frame 3. The size of the grid, the number and dimensions of the vertical stiffeners 321 and horizontal stiffeners 322 can be adjusted according to the actual impact force and the size of the roof, offering good adaptability and structural flexibility. It can be applied to roofs of different specifications and impact intensities from falling ice, and no limitations are imposed here.

[0042] In the preferred embodiment, multiple vertical reinforcing bars 321 are located directly below multiple reinforcing angle bars 221 and are arranged in a one-to-one correspondence.

[0043] Specifically, the vertical reinforcing bars 321 are located directly below the reinforcing angle steel 221 and correspond one-to-one, so that the impact force borne by the reinforcing angle steel 221 can be directly transmitted to the corresponding vertical reinforcing bars 321, and the vertical reinforcing bars 321 then distribute the force to the horizontal reinforcing bars 322, thus achieving precise transmission and efficient dispersion of force.

[0044] This configuration, with multiple vertical reinforcing bars 321 corresponding one-to-one with multiple reinforcing angle bars 221, ensures that the impact force of the reinforcing angle bars 221 can be directly transmitted to the vertical reinforcing bars 321. This avoids deviations or losses in the force transmission path, allowing the support frame 3 to more efficiently buffer and disperse impact forces, thus improving the buffering effect. For example, the impact force borne by the reinforcing angle bars 221 can act directly on the vertical reinforcing bars 321 directly below, allowing the vertical reinforcing bars 321 to immediately buffer it, thereby improving the overall service life and reliability of the support frame 3.

[0045] In a preferred embodiment, the lower protective component 1 and the upper protective component 2 together form a heat insulation cavity, which is filled with heat insulation cotton.

[0046] Specifically, the heat insulation cavity formed by the lower protective component 1 and the upper protective component 2 is filled with heat insulation cotton. The heat insulation cotton has good heat insulation performance, which can prevent external heat from entering the Huabian box and at the same time prevent heat from the box from escaping outward, thus playing a role in heat insulation and heat preservation.

[0047] This design ensures that the insulation cotton maintains a relatively stable temperature inside the transformer enclosure, preventing drastic temperature fluctuations caused by changes in the external environment. This protects the electrical equipment inside, allowing it to operate within a suitable temperature range and improving its reliability and lifespan. For example, in summer, the insulation cotton effectively blocks heat from solar radiation, preventing the enclosure temperature from becoming too high; in winter, it reduces heat loss, maintaining a stable temperature. The insulation cotton also provides sound insulation, reducing the propagation of noise generated during transformer operation and improving the surrounding noise level, meeting environmental protection and equipment operation noise requirements. Furthermore, the insulation cotton filling the cavity enhances the structural connection rigidity between the upper protective component 2 and the lower protective component 1, reducing structural vibration and further improving the overall stability of the top cover.

[0048] In a preferred embodiment, the top cover also includes a lifting ring assembly 4, which is fixedly connected to the side of the top cover. Specifically, the lifting ring assembly 4 is fixedly connected to the side of the top cover for lifting operations, facilitating the installation, disassembly, and maintenance of the top cover.

[0049] In a preferred embodiment, the lifting ring assembly 4 includes a connecting seat and a lifting ring body 41. The connecting seat is fixedly connected to the lower protective assembly 1, and the lifting ring body 41 is integrally formed or welded to the connecting seat. The top of the lifting ring body 41 is higher than the upper protective assembly 2. The connecting seat is fixed to the lower protective assembly 1 (not shown in the figure), and the lifting ring body 41 is connected to the connecting seat with its top higher than the upper protective assembly 2. This design allows the lifting ring body 41 to be easily connected to the lifting equipment during hoisting, and the design of being higher than the upper protective assembly 2 prevents the upper protective assembly 2 from interfering with the hoisting equipment during the hoisting process.

[0050] With this configuration, the lifting ring assembly 4 provides a reliable connection point for the lifting of the roof, enabling the lifting equipment to easily perform lifting operations on the roof. Whether installing a new roof or dismantling an old one, the process can be completed quickly and conveniently, improving construction efficiency. The lifting ring assembly 4 is fixed to the side of the roof, ensuring a reasonable distribution of stress points during lifting, evenly bearing the weight of the roof, and preventing deformation or damage due to uneven stress during lifting, thus ensuring a safe and reliable lifting process. The side-mounted lifting ring assembly 4 does not affect the anti-fall and ice-impact function of the upper protective assembly 2 on top of the roof, integrating lifting and protective functions without occupying additional space on the top of the roof or affecting the overall structural design. The fixed connection between the connecting seat and the lower protective assembly 1 ensures that the lifting ring assembly 4 can bear the weight of the roof, and the reliable connection between the lifting ring body 41 and the connecting seat prevents the lifting ring from falling off during lifting, ensuring the safety of the lifting process. The top of the lifting ring body 41 is higher than the upper protective component 2, so that the hook of the lifting equipment can be easily connected to the lifting ring. During the lifting process, the upper protective component 2 will not interfere with the lifting rope, hook, etc. of the lifting equipment, ensuring the smooth progress of the lifting operation.

[0051] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A type of protective cover against falling ice, characterized in that, The top cover includes a lower protective component (1), an upper protective component (2), and a support frame (3). The upper protective component (2) is disposed above the lower protective component (1), the support frame (3) is disposed below the lower protective component (1), the lower protective component (1) is connected to the upper protective component (2), and the support frame (3) is fixed to the lower protective component (1). The upper protective assembly (2) includes an upper cover plate (21) and a reinforcing part (22). The upper cover plate (21) is disposed on the top of the lower protective assembly (1), and the reinforcing part (22) is fixedly disposed on the top of the upper cover plate (21).

2. The top cover according to claim 1, characterized in that, The upper cover plate (21) includes a first cover plate (211) and a second cover plate (212), which are inclined to both sides of the top cover.

3. The top cover according to claim 2, characterized in that, The first cover plate (211) and the second cover plate (212) are each composed of a plurality of detachable sub-plates (21a), and each sub-plate (21a) is fixedly provided with the reinforcing part (22).

4. The top cover according to claim 3, characterized in that, The reinforcing part (22) includes a plurality of reinforcing angle steels (221), which are fixed in parallel to the top of the sub-plate (21a). The plurality of reinforcing angle steels (221), the first cover plate (211), and the second cover plate (212) are all inclined to both sides of the top cover.

5. The top cover according to claim 4, characterized in that, The support frame (3) includes a support skeleton (31) and a buffer reinforcing rib (32). The supporting frame (31) is fixedly connected to the bottom of the upper protective component (2); The buffer reinforcement rib (32) is fixed to the lower surface of the lower protective component (1) and connected to the support frame (31).

6. The top cover according to claim 5, characterized in that, The buffer reinforcement (32) includes multiple vertical ribs (321) and multiple horizontal ribs (322), and the vertical ribs (321) and horizontal ribs (322) are connected to each other to form a grid-like support frame.

7. The top cover according to claim 6, characterized in that, The multiple vertical ribs (321) are located directly below the multiple reinforcing angle steels (221) and are arranged in a one-to-one correspondence.

8. The top cover according to claim 1, characterized in that, The lower protective component (1) and the upper protective component (2) together form a heat insulation cavity, which is filled with heat insulation cotton.

9. The top cover according to claim 1, characterized in that, The top cover also includes a lifting ring assembly (4), which is fixedly connected to the side of the top cover.

10. The top cover according to claim 9, characterized in that, The lifting ring assembly (4) includes a connecting seat and a lifting ring body (41). The connecting seat is fixedly connected to the lower protective assembly (1). The lifting ring body (41) is integrally formed or welded to the connecting seat. The top of the lifting ring body (41) is higher than the upper protective assembly (2).

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