Adjustable waterproof shielding device for transformer

Abstract

The invention discloses an adjustable waterproof shielding device for a transformer, and relates to the technical field of transformers. The adjustable waterproof shielding device comprises a guide plate, an adjusting mechanism and a limiting mechanism. The adjusting mechanism comprises a supporting seat, an adjusting rod and a driving block, the supporting seat is fixedly connected to the top frame, the adjusting rod comprises a moving part and a connecting part, the connecting part is fixedly connected with the flow guide plate through a fastening screw or in a welding mode, the moving part is in clearance fit with the supporting seat, and the driving block is in transmission connection with the connecting part; the limiting mechanism comprises a limiting piece and a guide groove, the guide groove is formed in the outer side wall of the supporting base and extends in the axial direction of the supporting base, and the limiting piece is arranged in the guide groove in a sliding fit mode and fixedly connected with the adjusting rod. According to the scheme, the driving block is far away from or close to the supporting seat, so that the adjusting rod moves towards or away from the top frame, the height of the guide plate is reduced or increased, the drainage path of the guide plate is adjusted, and the drainage efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and in particular to an adjustable waterproof protection device for transformers. Background Technology

[0002] In the field of power equipment, especially in the application of outdoor transformers, long-term exposure to humid, rainy, and alternating wet and dry environments poses a threat of liquid water corrosion. To protect the transformer casing from rainwater, condensation, and other damage, waterproof protective devices such as rain caps and top covers are usually installed on the top of the transformer casing.

[0003] However, most existing waterproof protective devices adopt a flat or single-sloped structure. While this design can provide basic protection, it has some insurmountable drawbacks. First, traditional waterproof covers often require a fixed drainage path and angle. Once installed, the drainage performance cannot be adjusted, making it difficult to adapt to changes in different environments, resulting in low drainage efficiency and even the possibility of water accumulation and backflow. Second, these devices typically lack reliable and adjustable adjustment mechanisms, making it difficult to cope with foundation settlement, shell deformation, or changes in environmental conditions, thus causing the protective effect to gradually decline over time. Summary of the Invention

[0004] The purpose of this application is to provide an adjustable waterproof protection device for transformers, which aims to solve the technical problem that existing waterproof protection devices for transformers lack an effective adjustment mechanism.

[0005] To achieve the above objectives, this application provides an adjustable waterproof protection device for transformers. The waterproof protection device includes a guide plate, an adjustment mechanism, and a limiting mechanism. The adjustment mechanism includes a support base, an adjusting rod, and a driving block. The support base is fixedly connected to the top frame of the transformer. The adjusting rod includes a moving part and a connecting part. The connecting part is fixedly connected to the guide plate, and the moving part is clearance-fitted with the support base. The driving block is drively connected to the connecting part. The limiting mechanism includes a limiting member and a guide groove. The guide groove is formed on the outer wall of the support base and extends along the axial direction of the support base. The limiting member is slidably fitted within the guide groove and is fixedly connected to the adjusting rod to restrict the adjusting rod from circumferentially rotating with the rotation of the driving block. When the driving block moves away from the support base, the adjusting rod moves towards the top frame along the axial direction of the support base under the action of gravity. When the driving block approaches the support base, the adjusting rod moves away from the top frame along the axial direction of the support base under the mutual abutment action of the driving block and the support base.

[0006] In one embodiment, the support base has a receiving cavity that extends axially away from the top frame and through the support base. The moving part is clearance-fitted with the receiving cavity. The guide groove passes through the support base and communicates with the receiving cavity. The limiting member is slidably fitted within the guide groove and is fixedly connected to the adjusting rod located within the receiving cavity. When the driving block moves away from the support base, the adjusting rod moves axially towards the top frame along the receiving cavity under the action of gravity. When the driving block approaches the support base, the adjusting rod moves axially away from the top frame along the receiving cavity under the mutual abutment action of the driving block and the support base.

[0007] In one embodiment, the drive block and the connecting part are connected by a thread. When the drive block rotates counterclockwise, it moves away from the support seat under the action of the thread, and the adjusting rod moves along the receiving cavity toward the top frame under the action of gravity. When the drive block rotates clockwise, it moves toward the support seat under the action of the thread, and the adjusting rod moves away from the top frame along the receiving cavity under the mutual abutment of the drive block and the support seat.

[0008] In one embodiment, the circumferential dimension of the drive block is larger than the diameter of the receiving cavity, so that the drive block can abut against the axial end of the support.

[0009] In one embodiment, the support base includes a base and a support structure. The base is fixedly connected to the top frame, and the support structure is fixedly disposed on the base. The receiving cavity is opened inside the support structure, and the outer side wall of the support structure is provided with the guide groove. The driving block can abut against the axial end of the support structure.

[0010] In one embodiment, the number of adjustment mechanisms is four, and the four adjustment mechanisms are distributed at intervals on the top frame. The number of limiting mechanisms corresponds one-to-one with the number of adjustment mechanisms.

[0011] In one embodiment, the guide vane is a curved structure that extends obliquely along the top frame.

[0012] In one embodiment, the guide plate includes a convex side and a concave side, the convex side is fixedly connected to the connecting portion, and the concave side is provided with a guide groove that extends along the extension direction of the curved structure.

[0013] In one embodiment, there are multiple flow guide grooves, which are spaced apart along a direction perpendicular to the extension direction of the curved structure.

[0014] In one embodiment, the planar projection size of the baffle on the top frame is larger than the opening size of the top frame.

[0015] The above-mentioned technical solution of this application has at least the following beneficial technical effects: The technical solution of this application uses a limiting component to fix the adjusting rod in place, thereby restricting the circumferential rotation of the adjusting rod as the drive block rotates. By moving the drive block away from or towards the support base, the adjusting rod moves along the axial direction of the support base toward or away from the top frame, thereby lowering or raising the height of the guide plate, adjusting the drainage path of the guide plate, improving drainage efficiency, reducing the probability of water stagnation and accumulation, and enabling timely adjustment of the adjusting rod height according to foundation settlement and shell deformation. This ensures that the transformer maintains efficient waterproof protection under different time and environmental conditions, thereby extending the service life of the equipment and improving its operational reliability. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the overall structure of an embodiment of the adjustable waterproof shielding device for transformers provided in this application; Figure 2 This is a front view schematic diagram of a waterproof shielding device according to an embodiment of the adjustable waterproof shielding device for transformers provided in this application; Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism and the limiting mechanism of an embodiment of the adjustable waterproof shielding device for transformers provided in this application; Figure 4 This is a top view schematic diagram of the guide plate of an embodiment of the adjustable waterproof shielding device for transformers provided in this application.

[0017] Figure label: 1. Transformer; 11. Body; 12. Top frame; 2. Waterproof shielding device; 21. Guide plate; 211. Convex side; 212. Concave side; 213. Guide groove; 22. Adjustment mechanism; 221. Support base; 221a. Base; 221b. Support structure; 222. Adjustment rod; 222a. Moving part; 222b. Connecting part; 223. Drive block; 224. Receiving cavity; 23. Limiting mechanism; 231. Limiting element; 232. Guide groove; 3. Fastening screw. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the application 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 application. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.

[0019] The embodiments described in this application are only some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.

[0020] In the field of power equipment, outdoor transformers are exposed to harsh environments characterized by humidity, rain, and alternating wet and dry conditions, constantly facing the threat of liquid water corrosion to ensure their safe and stable operation. To prevent rainwater and condensation from directly intruding into the transformer body and accelerating casing corrosion, the industry commonly adopts a solution of installing waterproof protective covers (such as rain caps or top covers) on the top of the transformer casing. These existing waterproof protective devices are mainly based on the design concept of physical isolation and fixed flow guidance, typically using a flat or single-sloped cover structure, relying on covering to achieve shielding, and using simple slopes or trenches to rely on gravity for drainage. However, this traditional solution still has the following structural defects when dealing with complex and changing operating environments: First, the installation is complex, the flow guidance performance is fixed, and the adaptability is insufficient. Traditional waterproof covers are complex to install, and the tilt angle and flow guidance path are fixed during installation. Once installed, their drainage efficiency and drainage direction cannot be changed. However, the actual environments in which transformers are located (such as ground slope, local wind pressure and rainwater flow direction caused by surrounding buildings, and rainfall intensity in different seasons) vary greatly. Fixed flow-guiding designs cannot achieve optimal drainage, and under certain conditions, rainwater drainage can easily become obstructed, leading to localized water accumulation or even backflow, significantly reducing the protective effect. Secondly, the simple structure lacks an active and reliable adjustment mechanism to maintain long-term effectiveness. Existing structures are mostly welded and fixed or rely solely on shims for fine-tuning, lacking a reliable and convenient height adjustment mechanism. Precise adjustment is difficult during installation, and subsequent readjustment is impossible due to foundation settlement, casing deformation, or environmental changes, resulting in a decline in protective performance over time.

[0021] To address the aforementioned technical problems, this application provides an adjustable waterproof protection device for transformers.

[0022] In one embodiment of this application, please refer to Figures 1 to 3The waterproof shielding device 2 includes a guide plate 21, an adjustment mechanism 22, and a limiting mechanism 23. The adjustment mechanism 22 includes a support base 221, an adjustment rod 222, and a drive block 223. The support base 221 is fixedly connected to the top frame 12 of the transformer 1. The adjustment rod 222 includes a moving part 222a and a connecting part 222b. The connecting part 222b is fixedly connected to the guide plate 21 by fastening screws 3 or welding. The moving part 222a is clearance-fitted with the support base 221. The drive block 223 is drively connected to the connecting part 222b. The limiting mechanism 23 includes a limiting member 231 and a guide groove 232. The guide groove 232 is opened on the outer side wall of the support base 221 and extends along the axial direction of the support base 221. The limiting member 231 is slidably fitted in the guide groove 232 and is fixedly connected to the adjustment rod 222 to limit the circumferential rotation of the adjustment rod 222 as the drive block 223 rotates. When the drive block 223 moves away from the support base 221, the adjusting rod 222 moves towards the top frame 12 along the axial direction of the support base 221 under the action of gravity. The guide plate 21 moves closer to the top frame 12 under the action of the adjusting rod 222, thereby reducing the height of the guide plate 21. When the drive block 223 moves closer to the support base 221, the adjusting rod 222 moves away from the top frame 12 along the axial direction of the support base 221 under the mutual abutment action of the drive block 223 and the support base 221. The guide plate 21 gradually moves away from the top frame 12 under the action of the adjusting rod 222, thereby increasing the height of the guide plate 21. Specifically, the support base 221 can be a cylinder, a solid plate, or a cavity formed inside the solid plate; there are no restrictions on this. The adjusting rod 222 and the driving block 223 can be a screw and a nut, respectively, or a slide rod with a rack and a gear driving block 223, respectively; there are no restrictions on this. The limiting member 231 can be a positioning screw, a limiting pin, or a guide slider; there are no restrictions on this.

[0023] In one specific embodiment, please refer to Figure 3The support base 221 is a cylinder, which is fixedly mounted on the top frame 12 via a base 221a. A guide groove 232 is provided on the outer wall of the cylinder, extending axially into the cylinder. The guide groove 232 penetrates into the cylinder. The adjusting rod 222 and the driving block 223 are a hollow screw and a nut, respectively. One end of the hollow screw is clearance-fitted to the inner wall of the cylinder to facilitate axial movement. The other end of the hollow screw passes through the nut and is fixedly connected to the guide plate 21. The outer diameter of the nut is larger than the inner diameter of the cylinder to prevent the nut from falling into the cylinder and to facilitate abutment between the nut and the axial end of the cylinder. The limiting member 231 is a positioning screw, which extends through the guide groove 232 into the cylinder and is fixedly connected to the hollow screw. When it is necessary to lower the support height of the guide plate 21: Use a wrench to rotate the nut counterclockwise. As the nut rotates upward, a gap is created between its lower surface and the upper end face of the cylinder. At this time, under the action of its own weight and the load of the guide plate 21, the hollow screw slides along the inside of the cylinder towards its bottom, thereby lowering the support point height. When it is necessary to raise the support height of the guide plate 21: Use a wrench to rotate the nut clockwise. When rotating, the lower surface of the nut abuts against the solid upper end face of the cylinder and cannot move downward. According to the principle of thread transmission, the hollow screw that cannot rotate (restricted by the positioning screw) will be forced to rotate upward and extend out of the cylinder, thereby raising the support point height. The adjustment operation of this embodiment is simple and intuitive. Only the nut needs to be rotated with a wrench. Attitude calibration and subsequent maintenance can be completed without disassembling the top plate, which greatly simplifies the on-site installation and adaptive debugging process and has good engineering practicality and economy.

[0024] In another specific embodiment, the support base 221 is a solid plate. A guide groove 232 is formed on the side wall of the solid plate, extending axially along the solid plate and passing through from one side to the other. The adjusting rod 222 and the driving block 223 are a hollow screw and a nut, respectively. One end of the hollow screw is clearance-fitted with one side wall of the solid plate to facilitate axial movement of the hollow screw along the solid plate. The other end of the hollow screw passes through the nut and is fixedly connected to the guide plate 21. The radius of the nut is larger than the radial dimension of the solid plate so that the axial end of the nut near the solid plate can abut against the axial end of the solid plate. The limiting member 231 is a positioning screw, extending from one side of the solid plate through the guide groove 232 to the other side of the solid plate and fixedly connected to the hollow screw. When it is necessary to lower the support height of the guide plate 21: Use a wrench to rotate the nut counterclockwise. As the nut screws upward, a gap is created between its lower surface and the upper surface of the solid plate. At this time, under the action of its own weight and the load of the guide plate 21, the hollow screw slides along the axial direction of the solid plate toward the top frame 12, thereby lowering the support point height. When it is necessary to raise the support height of the guide plate 21: Use a wrench to rotate the nut clockwise. When rotating, the lower surface of the nut abuts against the solid upper surface of the solid plate and cannot move downward. According to the principle of thread transmission, the hollow screw that cannot rotate (restricted by the positioning screw) will be forced to screw upward, thereby moving along the axial direction of the solid plate toward the guide plate 21, thereby raising the support point height.

[0025] The technical solution of this application uses a limiting member 231 to fix the adjusting rod 222, thereby limiting the circumferential rotation of the adjusting rod 222 as the driving block 223 rotates. By moving the driving block 223 away from or towards the support base 221, the adjusting rod 222 moves along the axial direction of the support base 221 toward or away from the top frame 12, thereby lowering or raising the height of the guide plate 21, adjusting the drainage path of the guide plate 21, improving drainage efficiency, reducing the probability of water stagnation and water accumulation, and being able to adjust the height of the adjusting rod 222 in a timely manner according to foundation settlement and shell deformation, ensuring that the transformer 1 always maintains a highly efficient waterproof protection effect under different time and environmental conditions, thereby extending the service life of the equipment and improving its operational reliability.

[0026] In one implementation, please refer to Figure 3The support base 221 has a receiving cavity 224. The receiving cavity 224 extends away from the top frame 12 along the axial direction of the support base 221 and passes through the support base 221. The moving part 222a is clearance-fitted with the receiving cavity 224. The guide groove 232 passes through the support base 221 and communicates with the receiving cavity 224. The limiting member 231 is slidably fitted in the guide groove 232. The limiting member 231 is fixedly connected to the adjusting rod 222 located in the receiving cavity 224. When the driving block 223 moves away from the support base 221, the adjusting rod 222 moves towards the top frame 12 along the axial direction of the receiving cavity 224 under the action of gravity. When the driving block 223 approaches the support base 221, the adjusting rod 222 moves away from the top frame 12 along the axial direction of the receiving cavity 224 under the mutual abutment action of the driving block 223 and the support base 221. This embodiment, through the axial guidance of the adjusting rod 222 by the receiving cavity 224 and the circumferential limiting cooperation between the guide groove 232 and the limiting member 231, can realize the smooth movement of the adjusting rod 222 along a predetermined trajectory, ensure the accuracy of the height adjustment of the guide plate 21, facilitate the adaptation to drainage requirements under different environmental conditions, and improve the stability and reliability of the waterproof protection of the transformer 1.

[0027] In one implementation, please refer to Figure 3 The drive block 223 and the connecting part 222b are connected by threads. When the drive block 223 rotates counterclockwise, it moves away from the support base 221 under the action of the threads, and the adjusting rod 222 moves along the receiving cavity 224 towards the top frame 12 under the action of gravity. When the drive block 223 rotates clockwise, it moves closer to the support base 221 under the action of the threads, and the adjusting rod 222 moves away from the top frame 12 along the receiving cavity 224 under the mutual abutment of the drive block 223 and the support base 221. This embodiment, through the threaded connection between the drive block 223 and the connecting part 222b, allows the axial movement of the adjusting rod 222 to be achieved by rotating the drive block 223 clockwise and counterclockwise. This enables convenient and precise control of the height of the guide plate 21, which is beneficial for quickly adapting to different chemical conditions such as different rainfall intensities and limited space, improving the flexibility of drainage path adjustment, and ensuring the long-term stable waterproof protection effect of the transformer 1.

[0028] In one implementation, please refer to Figure 3 The circumferential dimension of the drive block 223 is larger than the diameter of the receiving cavity 224, so that the drive block 223 can abut against the axial end of the support base 221. This embodiment, by setting the circumferential dimension of the drive block 223 to be larger than the diameter of the receiving cavity 224, can achieve reliable abutment between the drive block 223 and the axial end of the support base 221, providing a stable force for the axial movement of the adjusting rod 222. This facilitates precise control of the height adjustment stroke of the guide plate 21, ensuring the safety and effectiveness of the device's adjustment process.

[0029] In one implementation, please refer to Figure 3 The support base 221 includes a base 221a and a support structure 221b. The base 221a is fixedly connected to the top frame 12, and the support structure 221b is fixedly disposed on the base 221a. A receiving cavity 224 is formed inside the support structure 221b. A guide groove 232 is formed on the outer side wall of the support structure 221b, and the driving block 223 can abut against the axial end of the support structure 221b. This embodiment provides stable foundation support through the fixed connection between the base 221a and the support structure 221b, ensuring the robustness and reliability of the device during operation. The fixed connection between the base 221a and the top frame 12 makes the entire device more stable and resistant to interference from external forces. The setting of the support structure 221b provides the necessary space and support for the receiving cavity 224, ensuring that the adjusting rod 222 can move smoothly within the receiving cavity 224. The guide groove 232 design on the outer side wall of the support structure 221b effectively guides the adjusting rod 222 to move along the correct path, reducing deviation and improving adjustment accuracy. The abutting fit between the drive block 223 and the axial end of the support structure 221b further enhances the fixation and stability of the device and improves working efficiency.

[0030] In one implementation, please refer to Figure 1 and Figure 2 The top frame 12 has four adjusting mechanisms 22, which are spaced apart. The number of limiting mechanisms 23 corresponds one-to-one with the number of adjusting mechanisms 22. This embodiment, with four adjusting mechanisms 22 spaced apart on the top frame 12, enables multi-point balanced adjustment, ensuring the overall structure's balance and stability during adjustment. This improves adjustment accuracy and prevents tilting or damage caused by single-point force. In one specific embodiment, four adjusting mechanisms 22 are installed at the four corners of the top frame 12, providing stable support to the guide plate 21 from four directions. By independently adjusting any one of the adjusting mechanisms 22, the height of the corresponding support point can be raised or lowered, thereby precisely and flexibly controlling the spatial position of each support point of the guide plate 21. This changes the overall tilt angle and surface shape of the guide plate 21 to match diverse rainwater diversion needs, such as directional changes in the main drainage direction or adjustment of drainage speed as needed. This design not only allows for free adjustment of the overall tilt angle of the baffle plate 21, but also actively shapes the specific form and main drainage direction of the baffle plate 21, thereby adapting to different installation foundations and rainwater environments, and ultimately achieving the dynamic flow guiding effect of the waterproof device.

[0031] Furthermore, because many traditional baffles use flat or low-sloping surfaces, rainwater tends to spread and stagnate on their surfaces instead of being quickly collected and directed to designated outlets. This not only prolongs the contact time between water and the casing, increasing the risk of leakage, but also makes it easier for the slow water flow to attract dust and fallen leaves, forming silt that clogs the drainage channels, further worsening the drainage situation, and even exacerbating casing corrosion due to prolonged dampness. Therefore, based on the above-described embodiments, the structure of the baffle 21 has been improved as follows.

[0032] In one implementation, please refer to Figure 1 , Figure 2 and Figure 4 The guide plate 21 has a curved structure that extends obliquely along the top frame 12. When encountering rain or external splashing water, the water flow can be efficiently collected and guided in a preset direction along this curved surface, which can more efficiently collect and guide the water flow, thereby improving drainage efficiency.

[0033] In one implementation, please refer to Figure 1 , Figure 2 and Figure 4 The guide plate 21 includes a convex side 211 and a concave side 212. The convex side 211 is fixedly connected to the connecting part 222b by fastening screws 3. The concave side 212 is provided with a guide groove 213. The guide groove 213 extends along the extension direction of the curved structure. Water collected on the guide plate 21 can be quickly discharged through the guide groove 213, avoiding rainwater accumulation and retention on the guide plate 21, further optimizing drainage efficiency and preventing water overflow.

[0034] In one implementation, please refer to Figure 4 The number of guide channels 213 is multiple, and the multiple guide channels 213 are distributed at intervals along a direction perpendicular to the extension direction of the curved structure. The guide channels 213 extend along the extension direction of the curved structure, which can quickly divert rainwater and guide it away along a preset path, avoiding rainwater from spreading and accumulating on the surface of the guide plate 21. This is conducive to improving rainwater discharge efficiency, adapting to high-flow rainfall conditions, and reducing the risk of rainwater retention and seepage into the transformer 1.

[0035] In one implementation, please refer to Figure 1 , Figure 2 and Figure 4The planar projection size of the guide plate 21 on the top frame 12 is larger than the opening size of the top frame 12, which can fully cover the opening of the top frame 12, preventing rainwater from seeping into the body 11 of the transformer 1 from the edge gaps. At the same time, it expands the initial receiving area of ​​rainwater, extends the guiding path and accelerates the convergence speed, thereby improving the overall waterproof protection effect. In a specific embodiment, the length and width of the guide plate 21 are both 100mm larger than the corresponding size of the outer shell, so that each side of the guide plate 21 can extend outward by about 50mm, forming an effective splash guard, which can block the side splashing rainwater from entering the opening of the top frame 12, and significantly reduce the risk of rainwater seeping into the body 11 of the transformer 1 from the edge gaps.

[0036] In this application, operators can precisely and independently adjust the height of each support point of the guide plate 21 according to actual terrain conditions, environmental wind speed and direction, and drainage requirements during the installation and subsequent operation and maintenance phases. This design allows the overall tilt angle, curved surface shape, and main drainage direction of the guide plate 21 to be flexibly set and adjusted, fundamentally overcoming the technical defects of traditional fixed waterproof shields that have limited drainage performance and cannot adapt to complex and changing environments, thereby achieving dynamic adjustability and adaptive drainage of the guide plate 21. In addition, by setting the guide plate 21 as a curved structure and cooperating with the construction design of the drainage channel 213, it can actively and efficiently collect and direct rainwater and external splash water, greatly shortening the residence time of rainwater on the top of the equipment casing and reducing the spillage area. This structure effectively blocks rainwater from seeping into the transformer 1 through the top gaps or forming corrosive drips along the casing wall, thus eliminating electrical faults and casing corrosion caused by water ingress and condensation at the source. Furthermore, the structural design of this device is particularly suitable for harsh environments with extreme humidity or poor ventilation, such as coastal areas with high humidity, basements, and subway tunnels. Its adjustable characteristics can compensate for installation surface deviations caused by foundation settlement and equipment deformation, ensuring that the waterproof shield maintains its optimal working posture for a long time. This achieves long-term effective and stable protection with a single installation, significantly reducing maintenance costs and after-sales risks caused by insufficient environmental adaptability.

[0037] This application aims to protect an adjustable waterproof protection device for a transformer. The technical solution of this application uses a limiting member 231 to be fixedly connected to an adjusting rod 222, thereby limiting the circumferential rotation of the adjusting rod 222 as the driving block 223 rotates. By moving the driving block 223 away from or towards the support base 221, the adjusting rod 222 moves along the axial direction of the support base 221 toward or away from the top frame 12, thereby lowering or raising the height of the guide plate 21, adjusting the drainage path of the guide plate 21, improving drainage efficiency, reducing the probability of water stagnation and water accumulation, and being able to adjust the height of the adjusting rod 222 in a timely manner according to foundation settlement and shell deformation, ensuring that the transformer 1 always maintains a highly efficient waterproof protection effect under different time and environmental conditions, thereby extending the service life of the equipment and improving its operational reliability.

[0038] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this application and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this application should be included within the protection scope of this application. 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. An adjustable waterproof protection device for transformers, characterized in that, The waterproof shielding device (2) includes a guide plate (21), an adjustment mechanism (22) and a limiting mechanism (23). The adjustment mechanism (22) includes a support base (221), an adjustment rod (222) and a drive block (223). The support base (221) is fixedly connected to the top frame (12) of the transformer (1). The adjustment rod (222) includes a moving part (222a) and a connecting part (222b). The connecting part (222b) is fixedly connected to the guide plate (21). The moving part (222a) is clearance-fitted with the support base (221). The drive block (223) is drive-connected to the connecting part (222b). The limiting mechanism (23) includes a limiting member (231) and a guide groove (232). The guide groove (232) is opened on the outer side wall of the support base (221) and extends along the axial direction of the support base (221). The limiting member (231) is slidably fitted in the guide groove (232). The limiting member (231) is fixedly connected to the adjusting rod (222) to limit the circumferential rotation of the adjusting rod (222) as the driving block (223) rotates. When the drive block (223) moves away from the support base (221), the adjusting rod (222) moves toward the top frame (12) along the axial direction of the support base (221) under the action of gravity; when the drive block (223) moves closer to the support base (221), the adjusting rod (222) moves away from the top frame (12) along the axial direction of the support base (221) under the mutual abutment action of the drive block (223) and the support base (221).

2. The adjustable waterproof protection device for transformers according to claim 1, characterized in that, The support base (221) has a receiving cavity (224). The receiving cavity (224) extends along the axial direction of the support base (221) away from the top frame (12) and passes through the support base (221). The moving part (222a) is clearance-fitted with the receiving cavity (224). The guide groove (232) passes through the support base (221) and communicates with the receiving cavity (224). The limiting member (231) is slidably fitted in the guide groove (232). The limiting member (231) is located in the receiving cavity. The adjusting rod (222) inside (224) is fixedly connected; when the driving block (223) moves away from the support seat (221), the adjusting rod (222) moves towards the top frame (12) along the axial direction of the receiving cavity (224) under the action of gravity; when the driving block (223) approaches the support seat (221), the adjusting rod (222) moves away from the top frame (12) along the axial direction of the receiving cavity (224) under the mutual abutment action of the driving block (223) and the support seat (221).

3. The adjustable waterproof protection device for transformers according to claim 2, characterized in that, The drive block (223) and the connecting part (222b) are connected by threads. When the drive block (223) rotates counterclockwise, the drive block (223) moves away from the support base (221) under the action of the threads, and the adjusting rod (222) moves along the receiving cavity (224) towards the top frame (12) under the action of gravity. When the drive block (223) rotates clockwise, the drive block (223) moves towards the support base (221) under the action of the threads, and the adjusting rod (222) moves away from the top frame (12) along the receiving cavity (224) under the mutual abutment action of the drive block (223) and the support base (221).

4. The adjustable waterproof protection device for transformers according to claim 3, characterized in that, The circumferential dimension of the drive block (223) is larger than the diameter of the receiving cavity (224) so ​​that the drive block (223) can abut against the axial end of the support (221).

5. The adjustable waterproof protection device for transformers according to claim 4, characterized in that, The support base (221) includes a base (221a) and a support structure (221b). The base (221a) is fixedly connected to the top frame (12), and the support structure (221b) is fixedly disposed on the base (221a). The receiving cavity (224) is opened inside the support structure (221b). The outer side wall of the support structure (221b) is provided with the guide groove (232). The driving block (223) can abut against the axial end of the support structure (221b).

6. The adjustable waterproof protection device for transformers according to any one of claims 1 to 5, characterized in that, The number of adjustment mechanisms (22) is four, and the four adjustment mechanisms (22) are distributed at intervals on the top frame (12). The number of limiting mechanisms (23) corresponds one-to-one with the number of adjustment mechanisms (22).

7. The adjustable waterproof protection device for transformers according to claim 6, characterized in that, The guide plate (21) is a curved structure that extends obliquely along the top frame (12).

8. The adjustable waterproof protection device for transformers according to claim 7, characterized in that, The guide plate (21) includes a convex side (211) and a concave side (212). The convex side (211) is fixedly connected to the connecting part (222b). The concave side (212) is provided with a guide groove (213), which extends along the extension direction of the curved structure.

9. The adjustable waterproof protection device for transformers according to claim 8, characterized in that, The number of the flow guide grooves (213) is multiple, and the multiple flow guide grooves (213) are distributed at intervals along a direction perpendicular to the extension direction of the curved surface structure.

10. The adjustable waterproof protection device for transformers according to claim 6, characterized in that, The planar projection dimension of the guide plate (21) on the top frame (12) is larger than the opening dimension of the top frame (12).

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