Railway catenary insulator protection plate

Abstract

The utility model relates to railway contact net insulator protection board, including two symmetrical half round plate of setting, the half round plate sets up the half round ring with the half round plate coaxial, half round ring both sides set fixed block, fixed block set through -hole, the fixed block on one side of two half round plates sets up the rotating assembly of cooperation use, the other side sets up threaded connection spare and realizes mechanical locking, realizes the directional opening and closing of half round plate through rotating assembly, cooperates the threaded locking of one -sided threaded connection spare, simplifies the installation operation of high altitude narrow space, and one hand can complete closing and fastening, and half round ring and radial reinforcing rib form three -dimensional support frame, and the reinforcing rib inclined plane extends to the half round plate edge, effectively disperses the load and restrains the deformation, the step structure of half round plate downside guides automatic alignment, the inner ring baffle and outer ring flexible cover cooperate sealing, block the invasion of foreign matter and buffer the collision, half round ring inlay high friction gasket, enhance the anti -slip stability.

Description

Technical Field

[0001] This utility model belongs to the field of railway insulator protection technology, specifically relating to railway contact network insulator protection plates. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] As a key component of the railway power supply system, the railway catenary is supported by towers along the line. The horizontal and diagonal clevises on the towers jointly bear the catenary wire and the contact wire. To ensure electrical insulation between the towers and the clevises, insulators must be installed between them. However, the clevises are often in confined spaces, making them ideal nesting sites for birds. If nesting branches or foraging animals such as snakes cross the insulators, it can easily cause a short circuit in the catenary, seriously threatening railway safety.

[0004] To mitigate this short-circuit risk, a widely adopted protective measure is to install bird-proof baffles on insulators. These baffles, with a diameter much larger than the insulator, physically block objects such as tree branches and snakes from crossing the insulator, thus reducing the risk of short circuits. However, existing bird-proof baffles often use a structure where two semi-circular baffles are joined together and bolted on. In actual construction, due to the height of the towers and limited operating space at the cantilever position, the installation process is difficult, resulting in low installation efficiency, inconvenient adjustment of the baffle angle after installation, and difficulty in ensuring stability, thus affecting the protective effect. Utility Model Content

[0005] The purpose of this utility model is to provide a protective plate for railway contact wire insulators, which can at least solve one of the above-mentioned technical problems.

[0006] To achieve the above objectives, embodiments of this utility model provide a protective plate for railway contact wire insulators, comprising two symmetrically arranged semicircular plates. Each semicircular plate is provided with a semicircular ring coaxial with the semicircular plate. Fixing blocks are provided on both sides of the semicircular ring, and through holes are provided on the fixing blocks. A rotating component is provided on the fixing block on the same side of the two semicircular plates for cooperative use, and a threaded connector is provided on the other side to achieve mechanical locking. After the semicircular rings on the two semicircular plates are closed, the inner diameter of the semicircular ring matches the outer diameter of the insulator root.

[0007] Furthermore, the rotating assembly is fixedly connected to one edge of the two semicircular plates, enabling the two semicircular plates to rotate and open / close with the rotating assembly as a fulcrum. Furthermore, the semicircular ring is positioned higher than the semicircular plate, and multiple raised reinforcing ribs are evenly distributed on the upper surface of the semicircular plate.

[0008] Furthermore, one end of the reinforcing rib is fixedly connected to the semicircular ring, and the other end extends obliquely to the outer contour of the semicircular plate.

[0009] Furthermore, a stepped structure is provided on the lower side of the semicircular plate to facilitate the opening and closing of the two semicircular plates.

[0010] Furthermore, a baffle is provided on the inner ring of the semicircular plate.

[0011] Furthermore, a flexible sleeve is provided on the outer contour of the semicircular plate.

[0012] Furthermore, the threaded connector includes a screw and anti-loosening nuts at both ends of the screw, and the two semi-circular plates are locked by tightening the anti-loosening nuts.

[0013] Furthermore, a gasket is nested on the inner ring of the semicircular ring to increase the friction between it and the insulator.

[0014] Furthermore, the semicircular plate is made of polycarbonate material.

[0015] The beneficial effects of the above technical solutions are as follows: This invention achieves directional opening and closing of the semicircular plate through a rotating component, and achieves threaded locking with a single-sided threaded connector, simplifying the installation operation in narrow spaces at high altitudes. Closure and tightening can be completed with one hand. The semicircular ring and radial reinforcing ribs form a three-dimensional support frame, and the inclined surface of the reinforcing ribs extends to the edge of the semicircular plate, effectively distributing the load and suppressing deformation.

[0016] The stepped structure on the underside of the semicircular plate guides automatic alignment, while the inner ring baffle and outer ring flexible sleeve work together to seal, preventing foreign object intrusion and buffering collisions. A high-friction gasket is nested inside the semicircular ring to enhance anti-slip stability. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 This is a three-dimensional schematic diagram of the protective plate structure in an embodiment of this utility model; Figure 2 This is a structural diagram of the semi-circular plate in an embodiment of this utility model.

[0019] In the diagram, 1 is a semicircular plate; 2 is a semicircular ring; 3 is a fixed block; 4 is a rotating assembly; 5 is a reinforcing rib; 6 is a washer; and 7 is a threaded connector. Detailed Implementation

[0020] like Figures 1-2As shown, this embodiment provides a protective plate for railway contact wire insulators, including two symmetrically arranged semicircular plates 1. A semicircular ring 2 coaxial with the semicircular plate 1 is provided on the semicircular plate 1. Fixing blocks 3 are provided on both sides of the semicircular ring 2. Through holes are provided on the fixing blocks 3. A rotating component 4 is provided on the fixing blocks 3 on the same side of the two semicircular plates 1 for cooperation. A threaded connector 7 is provided on the other side to achieve mechanical locking. After the semicircular ring 2 on the two semicircular plates 1 is closed, the inner diameter of the semicircular ring 2 matches the outer diameter of the insulator root. Specifically, the two semicircular plates 1 are rotatably connected by a rotating assembly 4 on the same side fixing block 3, and the other side fixing block 3 is locked by a threaded connector 7. During installation, the semicircular plates 1 are in the unfolded state. The semicircular ring 2 is aligned with the root of the insulator and then rotated to close, so that the inner surface of the semicircular ring 2 is in contact with the outer wall of the insulator. After closing, the screw of the threaded connector 7 passes through the through holes of the fixing blocks 3 on both sides, and the axial clamping force is generated by tightening the nuts, so that the semicircular plates 1 and the insulator form a stable connection. The inner diameter of the semicircular ring 2 is designed according to the root diameter of the insulator, and after closing, it forms an interference fit or a clearance fit. The specific fit method is determined according to the actual needs of the insulator.

[0021] like Figure 1 As shown, the rotating component 4 is fixedly connected to one edge of the two semicircular plates 1, so that the two semicircular plates 1 can rotate and open and close with the rotating component 4 as the fulcrum. Specifically, the two semicircular plates 1 are rotatably connected at one edge via a hinge structure. During installation, the operator only needs to apply rotational force on one side to open or close the semicircular plate 1 around the hinge axis. The hinge pivot position is limited to the edge of the semicircular plate 1, ensuring a stable movement trajectory of the semicircular plate 1 during opening and closing, and preventing interference with the insulator or cantilever structure. In the closed state, the other side of the semicircular plate 1 is fixed by a threaded connector 7, forming a complete annular protective structure.

[0022] The directional unfolding and closing of the semicircular plate 1 is achieved by rotating component 4, reducing the difficulty of installation and positioning. The single-point locking method of the threaded connector 7 simplifies the fastening operation, while axial preload ensures the stability of the closed state. The size matching design between the semicircular ring 2 and the root of the insulator avoids radial displacement after the protective plate is installed, improving the reliability of the protective structure and solving the problem of difficult installation of the protective plate in narrow spaces at high altitudes. Operators do not need to frequently adjust the angle of the semicircular plate 1, and the rotation and opening action can be completed with one hand, which is especially suitable for the restricted working environment of high-altitude towers. The hinge structure's fulcrum design ensures the stability of the opening and closing trajectory of the semicircular plate 1, preventing displacement during installation, and providing a convenient and repetitive foundation for subsequent maintenance and disassembly.

[0023] like Figure 2As shown, the semicircular ring 2 is positioned higher than the semicircular plate 1, and multiple raised reinforcing ribs 5 are evenly distributed on the upper surface of the semicircular plate 1. Specifically, the increased axial height of the semicircular ring 2 forms a ring-shaped enclosure structure, providing a larger contact area and constraint space when wrapping the root of the insulator, thereby reducing the risk of local stress concentration. The reinforcing ribs 5 cover the surface of the semicircular plate 1 in a radially evenly distributed manner. Their trapezoidal cross-section design, while maintaining the requirement of lightweighting, transforms external loads into dispersed stresses along the extension direction of the ribs through geometric changes, further suppressing the bending deformation of the plate. The combination of the semicircular ring 2 and the reinforcing ribs 5 forms a spatial three-dimensional support frame, which effectively distributes the load through multi-directional force transmission paths when subjected to external impact. One end of the reinforcing rib 5 is fixedly connected to the semicircular ring 2, and the other end extends obliquely to the outer contour of the semicircular plate 1. By rigidly connecting the root of the reinforcing rib 5 to the semicircular ring 2, the load borne by the root of the insulator can be directly transferred to the reinforcing rib 5. The oblique extension structure makes continuous contact between the end of the reinforcing rib 5 and the outer edge of the semicircular plate 1. When the plate is subjected to external impact, the oblique structure can guide the stress to diffuse evenly along the axial direction of the reinforcing rib 5. This connection method maintains the lightweight of the semicircular plate 1 while forming a continuous force transmission path from the semicircular ring 2 to the outer edge of the plate, effectively suppressing the torsional deformation of the plate under wind load or external impact. The lower side of the semicircular plate 1 is provided with a stepped structure to facilitate the opening and closing of the two semicircular plates 1. When the two semicircular plates 1 are closed, the boss part of the stepped structure first contacts the groove edge of the other semicircular plate 1. Guided by the inclined surface, the boss slides along the inclined surface of the groove, so that the two semicircular plates 1 automatically complete radial alignment. In the fully closed state, the boss and the vertical sidewall of the groove form an interlocking limit, preventing the semicircular plates 1 from displacing laterally or longitudinally. When it is necessary to open, the operator can pry the boss part of the stepped structure, using it as a fulcrum to apply leverage, thereby reducing the operational strength required for opening and closing.

[0024] like Figure 1 As shown, a baffle is provided on the inner ring of the semicircular plate 1. When the two semicircular plates 1 are closed, the inner ring baffle fits tightly with the root surface of the insulator, forming a continuous annular sealing surface. The elastic deformation of the baffle generates radial pressure, creating an interference fit between the protective plate and the insulator, effectively preventing foreign objects such as tree branches and small animals from entering the insulator area through the inner ring gap. At the same time, the contact friction between the baffle and the insulator surface increases, preventing the protective plate from axial displacement or circumferential rotation due to vibration or external forces.

[0025] A flexible sleeve is provided on the outer contour of the semicircular plate 1. During installation, when the protective plate comes into contact with surrounding components, the flexible sleeve reduces contact stress through its own compression deformation, preventing direct scraping by rigid materials. In the closed state, the flexible sleeve, after being compressed, tightly fits the surface contour of the insulator root and surrounding components, forming a continuous sealing interface. When the protective plate is subjected to external impact, the flexible sleeve disperses stress through local deformation, reducing the risk of structural deformation.

[0026] The threaded connector 7 includes a screw and anti-loosening nuts at both ends of the screw. Tightening the anti-loosening nuts locks the two semi-circular plates 1 together. During installation, the screw is inserted into the through holes of the fixing blocks 3 of the two semi-circular plates 1, with anti-loosening nuts installed at both ends. When the nuts on both sides are tightened simultaneously with a wrench, the two nuts move in opposite directions, creating a preload force that compresses against each other along the axial direction of the screw. This bidirectional locking method generates continuous friction between the threaded parts, maintaining connection stability even under continuous vibrations generated by train operation through the self-locking effect between the nuts and the screw. Locking is achieved by tightening the nuts in only one direction during operation, eliminating the need for repeated adjustments to the nut angles and simplifying installation in confined spaces at high altitudes.

[0027] A washer 6 is nested on the inner ring of the semicircular ring 2 to increase the friction between the washer and the insulator. When the protective plate is closed, the washer 6 nested in the inner ring of the semicircular ring 2 undergoes elastic deformation under the closing pressure, forming a surface contact with the root of the insulator. Due to the high coefficient of friction of the washer 6 material, a uniformly distributed frictional force is generated on the contact surface, counteracting the slippage tendency of the protective plate caused by gravity or vibration. At the same time, the nesting structure of the washer 6 and the semicircular ring 2 ensures that the frictional force is continuously distributed circumferentially, avoiding local stress concentration that could cause the protective plate to deflect.

[0028] The semicircular plate 1 is made of existing polycarbonate material, and its main structure is formed by injection molding. Its lightweight characteristics allow for single-person handling and installation during high-altitude operations. The material rigidity is achieved through the orientation distribution of molecular chains, which can withstand mechanical locking forces without plastic deformation in the closed state, ensuring stable contact between the semicircular ring 2 and the root of the insulator.

[0029] The working principle of this utility model: Two symmetrical semicircular plates 1 are connected on one side by a rotating assembly 4, enabling directional opening and closing rotation with a pivot point as the fulcrum. The other side is locked by a threaded connector 7. During installation, the operator aligns the unfolded protective plate semicircular ring 2 with the root of the insulator, rotates to close the two semicircular plates 1, and ensures that the inner surface of the semicircular ring 2 is tightly fitted against the outer wall of the insulator. Subsequently, the screw is passed through the through holes of the fixing blocks 3 on both sides, and the anti-loosening nuts at both ends are tightened to generate axial preload, completing the mechanical locking and forming a stable annular protective structure. The inner diameter of the semicircular ring 2 precisely matches the size of the insulator root, ensuring reliable radial positioning. At the same time, the semicircular ring 2 and the radial reinforcing ribs 5 on the plate surface form a three-dimensional support frame, effectively dispersing external loads and suppressing deformation. The hinge design simplifies the single-sided opening and closing operation, while the threaded single-point locking and anti-loosening mechanism ensure the connection stability under high-altitude vibration environments, significantly improving installation efficiency and protective reliability in confined spaces.

[0030] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A protective plate for railway contact wire insulators, characterized in that, It includes two symmetrically arranged semicircular plates, each with a semicircular ring coaxial with the plate. Fixing blocks are provided on both sides of the semicircular rings, and each fixing block has a through hole. A rotating component is provided on the fixing block on the same side of the two semicircular plates for cooperation, and a threaded connector is provided on the other side to achieve mechanical locking. After the semicircular rings on the two semicircular plates are closed, the inner diameter of the semicircular rings matches the outer diameter of the insulator root.

2. The railway contact wire insulator protective plate according to claim 1, characterized in that, The rotating assembly is fixedly connected to one edge of the two semicircular plates, enabling the two semicircular plates to rotate and open / close with the rotating assembly as the fulcrum.

3. The railway contact wire insulator protective plate according to claim 1, characterized in that, The semicircular ring is positioned above the semicircular plate, and multiple raised reinforcing ribs are evenly distributed on the upper surface of the semicircular plate.

4. The railway contact wire insulator protective plate according to claim 3, characterized in that, One end of the reinforcing rib is fixedly connected to the semicircular ring, and the other end extends obliquely to the outer contour of the semicircular plate.

5. The railway contact wire insulator protective plate according to claim 1, characterized in that, The lower side of the semicircular plate is provided with a stepped structure to facilitate the opening and closing of the two semicircular plates.

6. The railway contact wire insulator protective plate according to claim 1, characterized in that, A baffle is provided on the inner ring of the semicircular plate.

7. The railway contact wire insulator protective plate according to claim 1, characterized in that, A flexible sleeve is provided on the outer contour of the semicircular plate.

8. The railway contact wire insulator protective plate according to claim 1, characterized in that, The threaded connector includes a screw and anti-loosening nuts at both ends of the screw. Tightening the anti-loosening nuts locks the two semi-circular plates.

9. The railway contact wire insulator protective plate according to claim 1, characterized in that, The inner ring of the semicircular ring is fitted with a gasket to increase the friction between it and the insulator.

10. The railway contact wire insulator protective plate according to claim 1, characterized in that, The semicircular plate is made of polycarbonate material.

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