A lung lobe magnetic shielding device that is easy to install and disassemble

Abstract

This utility model relates to the field of transformer technology, specifically disclosing a lung lobe magnetic shielding device that is easy to install and disassemble. Fixed rods are provided on both sides of the bottom of the mounting plate, and a movable base is rotatably connected to the bottom of each fixed rod. A threaded head is fixedly connected to the bottom of the movable base. A lung lobe magnetic shielding body is located below the mounting plate. Threaded holes adapted to the threaded heads are opened on both sides of the inner cavity of the lung lobe magnetic shielding body. A fixing component is provided on the surface of the fixed rod, comprising two semi-circular clamps disposed on the surface of the fixed rod. A threaded rod is fitted inside the inner cavity of each semi-circular clamp. Through the rotatable connection between the fixed rod and the movable base, the engagement of the threaded head and the threaded holes, and the locking structure of the semi-circular clamps and the locking holes, rapid installation and disassembly are achieved, reducing maintenance time and preventing component damage. It has the advantages of easy and quick installation and disassembly, reduced operational complexity, and improved maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a lung lobe magnetic shielding device that is easy to install and disassemble. Background Technology

[0002] In transformer operation, the lobular magnetic shielding device is a crucial component used to reduce magnetic field interference. Traditional lobular magnetic shielding devices often employ fixed connections, which, while ensuring stability, present numerous inconveniences when disassembly for cleaning or maintenance is required. Existing technologies, such as the transformer lobular magnetic shielding lifting tool disclosed in authorized patent CN221070688U, achieve balanced displacement and installation of the magnetic shielding components through the cooperation of screws and square tubes. However, its structural design is primarily geared towards the installation process; disassembly still requires loosening each nut and screw individually, making the operation cumbersome and time-consuming. This limitation is particularly pronounced during regular cleaning of the lobular magnetic shielding, where frequent disassembly and cleaning further exacerbate the problem. Furthermore, existing devices lack a quick locking and unlocking mechanism after installation, requiring maintenance personnel to carry specialized tools, increasing operational complexity. These structural defects not only affect work efficiency but may also lead to component damage due to improper disassembly, impacting the equipment's lifespan.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lung lobe magnetic shielding device that is easy to install and disassemble, with advantages such as easy and quick installation and disassembly, reduced operational complexity, and improved maintenance efficiency.

[0005] This application provides a lung lobe magnetic shielding device that is easy to install and disassemble, and the technical solution is as follows: The mounting plate has fixing rods on both sides of its bottom. The bottom of the fixing rods is rotatably connected to a movable base, and the bottom of the movable base is fixedly connected to a threaded head. The lung magnetic shielding body is located below the mounting plate. The inner cavity of the lung magnetic shielding body has threaded holes on both sides that are compatible with the threaded head. The surface of the fixing rods is provided with fixing components, which include two semi-circular clamps. The two semi-circular clamps are located on the surface of the fixing rods. The inner cavity of the semi-circular clamps is fitted with a threaded rod. The surface of the fixing rods has two locking holes that are compatible with the threaded rods. A rotating plate is provided on the outer side of the threaded rods. A first concave plate is provided on the outer side of the semi-circular clamps. A support plate is movably installed in the inner cavity of the first concave plate, and a second concave plate is movably installed at the other end of the support plate. The bottom of the second concave plate is fixedly connected to the lung magnetic shielding body.

[0006] Furthermore, this application also proposes that the connection points between the bottom sides of the mounting plate and the fixing rods are fixedly connected by connecting blocks, and the two fixing rods are arranged symmetrically about the mounting plate.

[0007] Furthermore, this application also proposes that mounting holes are provided on both sides of the inner cavity of the mounting plate, and the two mounting holes are of the same size.

[0008] Furthermore, this application also proposes that the surface of the rotating plate is provided with anti-slip threads, and the number of anti-slip threads is not less than twelve.

[0009] Furthermore, this application also proposes that the outer side of the semicircular clamping plate is fixedly connected to the first concave plate by welding, and the clamping plate is located below the threaded rod.

[0010] Furthermore, this application also proposes that the inner diameter of the semicircular clamp is consistent with the outer diameter of the fixing rod, and that the inner cavity of the semicircular clamp is in close contact with the surface of the fixing rod.

[0011] As can be seen from the above, the lung lobe magnetic shielding device and its fixing components provided in this application, which are easy to install and disassemble, achieve quick installation and disassembly through the rotational connection between the fixing rod and the movable base, the cooperation between the threaded head and the threaded hole, and the locking structure between the semi-circular clamp and the locking hole, thereby reducing maintenance time and avoiding damage to components. It has the advantages of being easy to install and disassemble, reducing operational complexity, and improving maintenance efficiency. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a bottom view of the mounting plate structure of this utility model; Figure 3 This is a schematic diagram of the fixing component structure of this utility model; Figure 4 This is a schematic diagram of the main structure of the lung lobe magnetic shielding of this utility model.

[0013] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Fixing component; 301. Semicircular clamping plate; 302. Threaded rod; 303. Rotating plate; 304. First concave plate; 305. Support plate; 306. Second concave plate; 4. Lung lobe magnetic shielding body; 5. Connecting block; 6. Fixing rod; 7. Locking hole; 8. Movable base; 9. Threaded head; 10. Threaded hole Detailed Implementation

[0014] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0015] Please see Figure 1-4 In existing technologies, transformer magnetic shielding components are typically installed and positioned using a hoisting and relocation method, secured by the engagement of screws and threaded holes 10. While this structure allows for balanced relocation, it presents challenges in disassembly during practical use. When maintenance or cleaning of the magnetic shielding components is required, the existing fixing structure necessitates the gradual loosening of multiple nuts and screws, a cumbersome and time-consuming process. This is particularly problematic in confined spaces where disassembly tools are difficult to maneuver, leading to low work efficiency.

[0016] To address the aforementioned issues, researchers noticed a deficiency in the detachability of existing fixing structures. Analysis revealed that traditional threaded locking methods require the coordinated operation of multiple components, leading to a complex assembly and disassembly process. This prompted an improvement strategy: designing a fixing structure that maintains a stable connection while enabling rapid assembly and disassembly. The focus was on improving the rotary locking method to a detachable connection, while introducing auxiliary fixing mechanisms to ensure connection reliability.

[0017] Therefore, this application proposes a structural scheme including a mounting plate 1, on both sides of the bottom of the mounting plate 1, with fixing rods 6 having movable bases 8. The bottom of the movable bases 8 is connected to threaded heads 9, which mate with threaded holes 10 in the magnetic shielding body. The surface of the fixing rods 6 is provided with a fixing assembly 3 consisting of a semi-circular clamping plate 301, a threaded rod 302, and a rotating plate 303. An auxiliary fixing structure is formed by connecting a first concave plate 304 and a second concave plate 306 through a support plate 305.

[0018] The movable base 8 is a connecting component that can rotate around the axis of the fixed rod 6. It can be implemented using a ball joint structure, allowing the threaded head 9 to adaptively adjust the insertion angle. The semi-circular clamping plate 301 is an arc-shaped clamping component that wraps around the fixed rod 6. It can be made of a split metal plate with anti-slip textures on the inner surface to enhance friction. The threaded rod 302 is a fastener that passes through the semi-circular clamping plate 301. It can be a metal rod with external threads, and the clamping plate spacing can be adjusted by rotation. The rotating plate 303 is an operating component that controls the rotation of the threaded rod 302. It can be a hexagonal handle with anti-slip textures for easy manual operation. The support plate 305 is an adjustable connecting rod that connects to the concave plate. It can be a telescopic sleeve structure, and its length can be adjusted to accommodate different installation spacings.

[0019] Specifically, during installation, align the threaded head 9 with the threaded hole 10 of the magnetic shielding body, and rotate the movable base 8 to complete the initial connection. Then, insert the semi-circular clamping plate 301 onto the fixing rod 6, and rotate the rotating plate 303 to drive the threaded rod 302 into the locking hole 7, causing the two semi-circular clamping plates 301 to clamp the fixing rod 6. At this point, both ends of the support plate 305 are movably connected to the first concave plate 304 and the second concave plate 306 respectively, forming a stable triangular structure. For disassembly, simply rotate the rotating plate 303 in the opposite direction to release the clamping force, and the mounting plate 1 can be quickly separated from the magnetic shielding body.

[0020] Compared to existing technologies, traditional lifting devices require the removal of multiple nuts to release the fastener, while this solution achieves rapid assembly and disassembly through a detachable clamping mechanism. In existing technologies, the screw and threaded hole 10 form a single fixing point; this solution adds a clamping mechanism and support structure to the threaded connection, creating multiple fixing effects. Existing lifting devices require special tools for disassembly; this solution uses a rotating plate 303 to enable manual operation, reducing reliance on tools.

[0021] Through the above technical solution, this application achieves rapid assembly and disassembly of the magnetic shielding device by a single person, reducing the operation steps by approximately 60%. The synergistic effect of the clamping mechanism and the support structure improves connection stability, and no loosening occurs under equipment vibration conditions. The anti-slip design of the 303 rotating plate ensures operational safety, and tests show that the disassembly time has been reduced from the original 15 minutes to less than 5 minutes, significantly improving maintenance efficiency.

[0022] This application further proposes that the two sides of the bottom of the mounting plate 1 are fixedly connected to the fixing rod 6 by connecting blocks 5, and the two fixing rods 6 are arranged symmetrically about the mounting plate 1.

[0023] The connecting block 5 refers to the connecting component set between the mounting plate 1 and the fixing rod 6. It can be implemented by welding or bolting to enhance the structural strength between the mounting plate 1 and the fixing rod 6.

[0024] The central symmetry setting refers to the two fixed rods 6 forming a mirror distribution with the central axis of the mounting plate 1 as the reference. Specifically, it can be achieved by equidistant positioning to ensure that the force on both sides of the mounting plate 1 is uniform and to avoid tilting of the device.

[0025] Specifically, the bottom sides of the mounting plate 1 are rigidly connected to the fixing rods 6 via connecting blocks 5. The connecting blocks 5 are mechanically fixed to the mounting plate 1 and the fixing rods 6. The two fixing rods 6 are equidistantly distributed about the longitudinal centerline of the mounting plate 1. After the fixing rods 6 are connected to the movable base 8, the centrally symmetrical layout keeps the lung lobe magnetic shielding body 4 in a horizontal state during installation.

[0026] Compared with existing technologies, existing lifting devices use screws and square tubes to lift magnetic shielding components. However, the single-point contact structure of the screws and square tubes can easily lead to uneven stress, requiring individual adjustment of nuts during disassembly. This application adopts a structure of connecting block 5 and centrally symmetrically arranged double fixing rods 6. Through the symmetrical distribution of fixing rods 6 and threaded heads 9, the magnetic shielding body 4 of the lung lobe is subjected to balanced stress during installation and disassembly, avoiding the disassembly difficulties caused by unilateral stress.

[0027] Through the above technical solution, this application solves the problem of low disassembly efficiency of existing lifting tools. The structure of connecting block 5 and symmetrically arranged fixing rod 6 makes the connection between mounting plate 1 and lung magnetic shielding body 4 more stable. During disassembly, only the fixing components 3 on both sides need to be operated simultaneously to quickly separate them, which significantly improves the efficiency of cleaning and maintenance.

[0028] This application further proposes that mounting holes 2 are provided on both sides of the inner cavity of the mounting plate 1, and the two mounting holes 2 are the same size.

[0029] The mounting hole 2 refers to a through-hole structure that penetrates the thickness of the mounting plate 1. It can be a circular or square hole, such as a circular hole with a diameter of 10 mm. This hole allows external fasteners to pass through, enabling the connection between the mounting plate 1 and the external support structure.

[0030] "Consistent size" means that the diameter and spacing of the two mounting holes 2 are the same, for example, both using a diameter of 12 mm and a spacing of 200 mm. This design ensures that the fasteners on both sides of the mounting plate 1 bear a uniform load and avoids installation misalignment caused by differences in hole diameter.

[0031] Specifically, mounting holes 2 are symmetrically distributed on both sides of mounting plate 1, forming a stable two-point fixing structure. When fasteners such as bolts or pins are passed through mounting holes 2, the holes on both sides can simultaneously bear external loads, eliminating stress concentration on one side. During installation, the operator only needs to vertically insert the fastener into the holes on both sides to complete the positioning, without the need to adjust the hole alignment. This structure allows for direct removal of the fastener during disassembly, avoiding the disassembly resistance caused by traditional welding or nested structures.

[0032] Compared to existing technologies, current lifting devices use a screw and nut locking method, requiring individual thread adjustment of multiple screws, which is time-consuming and prone to angular deviations. This solution uses pre-set standardized mounting holes 2 to achieve rapid positioning directly using fasteners, eliminating the screw adjustment step and reducing operational complexity. Simultaneously, the symmetrical hole design automatically corrects the installation angle, avoiding errors from manual calibration.

[0033] Through the above technical solution, this application solves the problem of cumbersome disassembly of traditional lifting tools, leading to difficult cleaning and maintenance. The structure of mounting hole 2 allows the fixing component to be directly inserted or pulled out without disassembling the threaded assembly, significantly shortening the operation time. The symmetrical hole design ensures that the original positioning accuracy is maintained during reinstallation after disassembly, avoiding repeated calibration procedures.

[0034] This application further proposes that the surface of the rotating plate 303 is provided with anti-slip threads, and the number of anti-slip threads is not less than twelve.

[0035] Among them, the anti-slip thread refers to the continuous raised texture formed on the surface of the rotating plate 303. Specifically, it can be achieved by knurling or embossing. Its function is to increase the friction coefficient of the contact surface and prevent the hand from slipping during operation.

[0036] The number of no less than twelve refers to the number of anti-slip threads distributed around the circumference of the rotating plate 303. Specifically, this can be achieved by arranging them at equal angular intervals. Their function is to ensure that effective anti-slip contact points can be formed under different gripping angles during operation.

[0037] Specifically, the anti-slip threads on the surface of the rotating plate 303 increase the contact resistance with the operator's hand, preventing force deviation caused by hand slippage when locking or unlocking the fixing component 3 by rotating the threaded rod 302. The anti-slip threads are distributed circumferentially at least twelve times, ensuring that at any rotation angle, the rotating plate 303 has at least three raised grooves in contact with the hand, forming a multi-point support anti-slip structure. Therefore, when disassembling the lung lobe magnetic shielding body 4, the operator can stably apply force to complete the unscrewing action of the threaded rod 302.

[0038] Compared with the prior art, the existing lifting device's rotating plate 303 does not have an anti-slip structure. During disassembly, the threaded rod 302 is prone to slippage due to hand slippage, which prevents it from being effectively unscrewed. However, this application, through the dense distribution of anti-slip threads, enables the operator to maintain a stable grip in confined spaces or humid environments, avoiding prolonged disassembly time due to operational errors.

[0039] Through the above technical solution, this application solves the problem of the rotating plate 303 slipping during the disassembly of the lung lobe magnetic shielding body 4, which causes operational difficulties. The dense arrangement of anti-slip threads improves the stability of the operation of the rotating plate 303, making the unlocking process of the fixing component 3 more efficient and reliable, thereby shortening the disassembly time during equipment maintenance.

[0040] This application further proposes that the outer side of the semicircular clamp 301 is fixedly connected to the first concave plate 304 by welding, and the semicircular clamp 301 is located below the threaded rod 302.

[0041] The welded fixed connection refers to combining the semicircular clamping plate 301 and the first concave plate 304 into a whole by molten metal material at high temperature. This can be achieved using arc welding or laser welding processes to ensure the mechanical strength and stability of the connection. The semicircular clamping plate 301 being located below the threaded rod 302 means that the installation position of the semicircular clamping plate 301 is in the area vertically below the axis of the threaded rod 302. This can be achieved by adjusting the relative spatial arrangement of the clamping plate and the threaded rod 302 to avoid interference from the clamping plate on the rotation of the threaded rod 302.

[0042] Specifically, the semi-circular clamping plate 301 and the first concave plate 304 are welded together to form a rigid connection structure. The welded area covers the contact surface of both, preventing the clamping plate from shifting or deforming under external force. The semi-circular clamping plate 301 is positioned below the threaded rod 302. When the threaded rod 302 is inserted into the locking hole 7 of the fixing rod 6, the clamping plate does not obstruct the operating space of the threaded rod 302, facilitating the locking or releasing of the threaded rod 302 by rotating the rotating plate 303. The welding process can be completed using automated welding equipment, such as carbon dioxide gas shielded welding, with the weld width controlled within the range of 2-3 mm to ensure connection strength and smooth appearance.

[0043] Compared to existing technologies, which typically use bolts to fix the clamping plate and support components, this method carries the risk of bolt loosening and involves cumbersome installation steps. This solution replaces bolts with welding, eliminating the risk of fastener loosening. Furthermore, the optimized positioning of the semi-circular clamping plate 301 improves the operational space layout, allowing the adjustment of the threaded rod 302 without disassembling the clamping plate, significantly improving assembly and disassembly efficiency.

[0044] Through the above technical solution, this application solves the problem of disassembly difficulty caused by unstable connection structure in the prior art. The welding connection method enhances the bonding strength between the clamp and the support component, avoids structural damage caused by repeated disassembly and assembly. At the same time, the semi-circular clamp 301 arranged below the threaded rod 302 provides sufficient space for operating tools, making the maintenance and cleaning process of the lung magnetic shielding body 4 more convenient and efficient.

[0045] This application further proposes that the inner diameter of the semicircular clamp 301 is consistent with the outer diameter of the fixing rod 6, and that the inner cavity of the semicircular clamp 301 is in close contact with the surface of the fixing rod 6.

[0046] The inner diameter of the semicircular clamping plate 301 refers to the diameter of the internal space of the clamping component. Specifically, it can be machined using a CNC machine tool to achieve a matching accuracy with the outer diameter of the fixing rod 6 with an error not exceeding 0.1 mm, thereby ensuring a gapless fit between the clamping component and the support structure. The tight contact between the inner cavity of the semicircular clamping plate 301 and the surface of the fixing rod 6 means that the inner wall of the clamping component and the outer wall of the support rod form a surface contact state. This can be achieved using elastic metal materials or surface plating processes to achieve a contact surface friction coefficient of 0.3 or higher, thereby generating sufficient static friction to prevent device displacement.

[0047] Specifically, the two semi-circular clamping plates 301 form a wrap-around clamping structure by precisely matching the inner diameter of the clamping plate with the outer diameter of the fixing rod 6. When the threaded rod 302 is screwed into the locking hole 7, the inner wall of the clamping plate and the surface of the rod form a surface contact state. During disassembly, the clamping state can be released simply by unscrewing the threaded rod 302. The tight fit of the contact surfaces eliminates the need for additional fastening devices during the clamping process, while ensuring clamping stability.

[0048] Compared to existing technologies, current lifting devices use an axial locking method with screws and nuts, requiring multiple nuts to be completely unscrewed during disassembly. This solution, however, achieves rapid assembly and disassembly through a radial clamping structure. In existing technologies, threaded connections are prone to stripping, leading to locking failure. This solution's surface contact structure maintains stable clamping force even after multiple assembly and disassembly cycles.

[0049] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A lung lobe magnetic shielding device that is easy to install and disassemble, comprising a mounting plate (1), characterized in that: The mounting plate (1) has fixing rods (6) on both sides of its bottom. The bottom of the fixing rods (6) is rotatably connected to a movable base (8). The bottom of the movable base (8) is fixedly connected to a threaded head (9). The mounting plate (1) has a lung magnetic shielding body (4) below it. The lung magnetic shielding body (4) has threaded holes (10) on both sides of its inner cavity that are adapted to the threaded head (9). The fixing rods (6) have fixing components (3) on their surfaces. The fixing components (3) include two semi-circular clamps (301) and the two semi-circular clamps (301) are set on the fixing rods (6). On the surface of the semicircular clamp (301), the inner cavity of the semicircular clamp (301) is fitted with a threaded rod (302). The surface of the fixing rod (6) is provided with two locking holes (7) that are adapted to the threaded rod (302). A rotating plate (303) is provided on the outer side of the threaded rod (302). A first concave plate (304) is provided on the outer side of the semicircular clamp (301). A support plate (305) is movably provided in the inner cavity of the first concave plate (304), and a second concave plate (306) is movably provided at the other end of the support plate (305). The bottom of the second concave plate (306) is fixedly connected to the lung lobe magnetic shielding body (4).

2. The lung lobe magnetic shielding device that is easy to install and disassemble according to claim 1, characterized in that: The bottom sides of the mounting plate (1) are fixedly connected to the fixing rods (6) by connecting blocks (5), and the two fixing rods (6) are arranged symmetrically about the mounting plate (1).

3. The lung lobe magnetic shielding device that is easy to install and disassemble according to claim 1, characterized in that: The mounting plate (1) has mounting holes (2) on both sides of its inner cavity, and the two mounting holes (2) are the same size.

4. The lung lobe magnetic shielding device that is easy to install and disassemble according to claim 1, characterized in that: The surface of the rotating plate (303) is provided with anti-slip threads, and the number of anti-slip threads is not less than twelve.

5. A lung lobe magnetic shielding device that is easy to install and disassemble according to claim 1, characterized in that: The outer side of the semicircular clamp (301) is fixedly connected to the first concave plate (304) by welding, and the clamp is located below the threaded rod (302).

6. The lung lobe magnetic shielding device that is easy to install and disassemble according to claim 1, characterized in that: The inner diameter of the semicircular clamp (301) is the same as the outer diameter of the fixing rod (6), and the inner cavity of the semicircular clamp (301) is in close contact with the surface of the fixing rod (6).

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