Communication cabinets suitable for high-speed railway tunnels

Abstract

This invention provides a communication cabinet suitable for high-speed railway tunnels. The communication cabinet includes a cabinet body, a dustproof component, a windproof component, and a locking mechanism. The dustproof component has a dustproof net slidably mounted on the frame structure and blocking a second ventilation opening, and is detachably connected to the frame structure. The windproof component has a windproof plate covering at least the second ventilation opening, with the windproof plate positioned at a distance from the dustproof component, and is detachably connected to a windproof base. The locking mechanism has a locking end. When the windproof plate and windproof base are connected, and the locking end and limit block are locked, the frame structure is located at the first ventilation opening. When the windproof plate and windproof base are detached, and the locking end and limit block are unlocked, the frame structure moves away from the first ventilation opening. This invention solves the problem that existing dustproof protection structures cannot meet the comprehensive requirements of high reliability and high maintainability for high-speed railway tunnel communication systems.

Description

Technical Field

[0001] This invention relates to the field of communication equipment maintenance technology in high-speed railway tunnels, and more specifically, to a communication cabinet suitable for high-speed railway tunnels. Background Technology

[0002] In high-speed rail tunnel environments, communication cabinets must withstand the impact of strong airflow, high concentrations of dust, and humid air generated by passing high-speed trains for extended periods. Therefore, they are typically equipped with safety accessories such as windproof panels, dustproof and moisture-proof covers, and access doors. Current technologies often employ fixed dustproof covers with sealing strips at the edges to prevent dust and moisture from entering the cabinet. Heat dissipation relies on independent cooling components inside the cabinet, making natural ventilation impossible. To balance dust prevention and heat dissipation, some designs incorporate ventilation holes in the cover and non-removable dust filters. However, once this structure becomes clogged with dust, the entire cover must be removed or replaced, a cumbersome process that can damage the sealing structure and reduce dustproof performance. Other solutions use removable dust filters, but these are often bolted or clip-locked, requiring tools for installation and removal, resulting in long maintenance cycles. In the confined space of tunnels, this makes rapid response difficult and severely impacts operational efficiency.

[0003] In the aforementioned technologies, the dustproof structure cannot be easily disassembled and reassembled without tools, quickly, and repeatedly. It is difficult to achieve regular cleaning or replacement while ensuring long-term airtight dustproof protection, and it is forced to sacrifice ventilation and heat dissipation capabilities, resulting in heat accumulation inside the cabinet, accelerating the aging of electronic components, and making it difficult to meet the comprehensive requirements of high reliability and high maintainability for high-speed rail tunnel communication systems. Summary of the Invention

[0004] The main objective of this invention is to provide a communication cabinet suitable for high-speed railway tunnels, so as to solve the problem that the dustproof protection structure in the prior art is difficult to meet the comprehensive requirements of high reliability and high maintainability of the communication system in high-speed railway tunnels.

[0005] To achieve the above objectives, the present invention provides a communication cabinet suitable for high-speed railway tunnels, for fixing to the wall inside the tunnel. The communication cabinet includes a cabinet body, a dustproof component, a windproof component, and a locking mechanism. The cabinet body is fixed to the wall inside the tunnel, and at least one ventilation opening is provided on the surface of the cabinet body facing away from the wall. The first ventilation opening connects the cabinet body's receiving cavity to the outside environment to dissipate heat from the heat-generating components located within the receiving cavity. The dustproof component includes a frame structure and a dustproof net. The frame structure is movably disposed at the first ventilation opening and has a second ventilation opening. The dustproof net is slidably disposed on the surface of the frame structure facing the receiving cavity and blocks the second ventilation opening, and the dustproof net is detachably connected to the frame structure. The windproof component includes a windproof base and a windproof plate. The windproof bases are arranged in pairs. The baffle plate is positioned on both sides of the cabinet body and is at least used for connection to the wall. Both ends of the baffle plate are connected to two baffle bases and at least cover the second ventilation opening. The baffle plate and the dustproof component are positioned at a distance, and the baffle plate and the baffle bases are detachably connected. The locking mechanism includes a limit block and a locking component. The limit block is located on the cabinet body, and the locking component is movably mounted on the frame structure. The locking component has a locking end for engaging with the limit block. When the baffle plate and the baffle base are connected, and the locking end and the limit block are locked, the frame structure is located at the first ventilation opening to achieve the communication cabinet's heat dissipation and dustproof performance. When the baffle plate and the baffle base are detached, and the locking end and the limit block are unlocked, the frame structure moves away from the first ventilation opening to provide operating space for replacing the dustproof screen.

[0006] In one exemplary embodiment, the surface of the cabinet body having the first ventilation opening is flat; and / or, the frame structure and the dustproof net are both flat structures; and / or, the wind deflector is an arc-shaped structure.

[0007] In an exemplary embodiment, the limiting block has two limiting grooves and two clearance notches, with the two clearance notches corresponding one-to-one with the two limiting grooves; two sets of limiting rails are provided protruding from the surface of the frame structure facing the wind deflector, the two sets of limiting rails are spaced apart along the height direction of the frame structure, and each set of limiting rails includes at least two limiting rails of the same height; the locking assembly includes two movable posts arranged in pairs, the two movable posts are slidably disposed at the two sets of limiting rails respectively, one end of the two movable posts facing the two limiting grooves respectively forms two locking ends, and the two movable posts are radially movably connected to allow the two movable posts to lock. The columns can move closer to or further away from each other along their respective radial directions; wherein, the limiting groove includes a first groove segment and a second groove segment that are connected, the first groove segment extends vertically and the second groove segment extends horizontally, so that the limiting groove is L-shaped, and the clearance notch is connected to the end of the second groove segment that is away from the first groove segment; the two locking ends are respectively limited and engaged in the two first groove segments so that the two locking ends and the limiting block are in a locked state, and the two moving columns move closer to each other so that the two locking ends slide along their respective first groove segments to the second groove segment, and slide out through their respective clearance notches, so that the two locking ends and the limiting block are in an unlocked state.

[0008] In an exemplary embodiment, the locking assembly further includes a first sliding post, a second sliding post, a sliding sleeve, and a first spring. The first end of the first sliding post is connected to a first movable post; the first end of the second sliding post is connected to a second movable post, and the second sliding post and the first sliding post are concentrically arranged, with the inner diameter of the second sliding post being greater than or equal to the outer diameter of the first sliding post, so that the second end of the first sliding post slides into a sliding engagement with the second end of the second sliding post; the first end of the sliding sleeve is connected to the first movable post, and the second end of the sliding sleeve extends toward the second sliding post, with the inner diameter of the sliding sleeve being greater than or equal to the outer diameter of the second sliding post, so that the sliding sleeve slides into a sliding engagement with the second sliding post; the first spring is sleeved on the outer periphery of the first sliding post, with the first end of the first spring connected to the first movable post, and the second end of the first spring connected to the second end of the second sliding post, so that the restoring force of the first spring indirectly provides force to the first movable post through the second sliding post, thereby forming a symmetrical restoring force.

[0009] In one exemplary embodiment, the axial length of the sliding sleeve is greater than the axial length of the first sliding post.

[0010] In an exemplary embodiment, the locking assembly further includes two toggle handles, each connected to one of two movable posts. Each toggle handle includes a first segment and a second segment, wherein a first end of the first segment is connected to a movable post, and a second end of the first segment extends vertically. The second segment extends along a surface perpendicular to the frame structure toward the wind deflector, and the second end of the first segment is connected to the first end of the second segment, forming a manual operation end.

[0011] In one exemplary embodiment, the dustproof assembly further includes a pivot shaft, the first end of which is connected to the wall of the cabinet body at the first ventilation opening, and the second end of which is pivotally connected to the frame structure so that the squirrel frame structure is rotatably configured about the pivot shaft.

[0012] In an exemplary embodiment, the communication cabinet further includes a buffer mechanism having a fixed end and a movable end. The fixed end is connected to the frame structure, and the movable end is slidably engaged with the fixed end. The end face of the movable end facing away from the fixed end is disposed towards the wind deflector, so that when the wind deflector is bent and deformed by airflow impact, it contacts the movable end and pushes the movable end to slide towards the fixed end.

[0013] In an exemplary embodiment, the buffer mechanism includes a fixed column, a sliding column, a sliding block, and a second spring. The first end of the fixed column is connected to the frame structure to form a fixed end. The first end of the sliding column extends into the second end of the fixed column, allowing the outer circumferential surface of the sliding column to slide against the inner circumferential surface of the fixed column. A first stop block protrudes from the second end of the sliding column, protruding radially along the sliding column to abut against the axial end face of the second end of the fixed column when the sliding column slides to a first preset position. The outer circumferential surface of the sliding block slides against the inner circumferential surface of the sliding column. The first end of the second spring is connected to the bottom surface of the hollow cavity of the fixed column, and the second end of the second spring is connected to the first end of the sliding block, forming a movable end. A portion of the second spring is located within the hollow cavity of the fixed column, and another portion of the second spring is located within the hollow cavity of the sliding column. The end face of the sliding block facing away from the second spring forms a mating surface for engaging with a wind deflector.

[0014] In an exemplary embodiment, a second stop block is provided at the end of the sliding block away from the second spring. The second stop block protrudes radially from the sliding block to engage with the axial end face of the second end of the sliding post when the sliding block slides to the second preset position.

[0015] Applying the technical solution of this invention, a communication cabinet suitable for high-speed railway tunnels achieves natural heat dissipation of the heating elements inside the cabinet by setting a first ventilation opening on the side of the cabinet body away from the tunnel wall. Simultaneously, a frame structure with a second ventilation opening is movably installed at the first ventilation opening, and a detachable dustproof net is slidably installed on its surface facing the cavity, forming a double protection structure to ensure that external dust is effectively intercepted before entering the cabinet. To ensure synergy between ventilation efficiency and dustproof performance, the windbreak base of the windbreak assembly is fixed in pairs to both sides of the cabinet body and connected to the tunnel wall. A windbreak plate is detachably mounted on it, covering the outside of the second ventilation opening and maintaining a distance from the dustproof assembly, effectively blocking high-speed airflow or splashes from inside the tunnel from directly impacting the dustproof net and preventing dustproof net failure due to airflow disturbance. When the dust filter needs to be replaced, by releasing the locking end of the locking assembly from the upper limit block of the cabinet body, the frame structure can be displaced from the first ventilation opening and moved laterally or longitudinally. Simultaneously, the connection between the wind baffle and the wind baffle base is disassembled, providing ample operating space for the frame structure's movement. Therefore, the dust filter can be directly slid off the frame structure and replaced without the need for complete cabinet disassembly or the use of tools. After replacement, the frame structure is returned to the first ventilation opening, the locking end re-engages with the limit block, restoring the dust filter's airtightness, and the wind baffle is reinstalled to restore airflow protection. This structure, through the coordinated operation of the locking mechanism, the detachable wind baffle, and the sliding and detachable dust filter, achieves tool-free, non-destructive, rapid, and independent replacement of the dust filter while continuously ensuring ventilation, heat dissipation, and dust prevention performance. It completely solves the technical problems of low maintenance efficiency, long replacement cycles, and disruption to continuous communication system operation caused by the enclosed installation structure, complex disassembly and assembly procedures, and the need for downtime or complete disassembly of the existing system. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of a communication cabinet mounted on a wall according to an optional embodiment of the present invention is shown;

[0018] Figure 2 It shows Figure 1 Another structural diagram of the communication cabinet in the diagram;

[0019] Figure 3 It shows Figure 2 A magnified structural diagram at point A in the diagram;

[0020] Figure 4 It shows Figure 2A magnified structural diagram at point B in the diagram;

[0021] Figure 5 It shows Figure 2 A schematic diagram of the buffer mechanism in the communication cabinet;

[0022] Figure 6 It shows Figure 5 A magnified structural diagram at point C.

[0023] The above figures include the following reference numerals:

[0024] 1. Wall;

[0025] 10. Cabinet body; 11. First ventilation opening;

[0026] 20. Dustproof components; 21. Frame structure; 211. Second ventilation opening; 212. Limiting rail; 22. Dustproof net; 23. Pivot shaft;

[0027] 30. Windshield assembly; 31. Windshield base; 32. Windshield panel;

[0028] 40. Locking mechanism; 41. Limiting block; 411. Clearance notch; 42. Locking assembly; 421. Moving column; 422. First sliding column; 423. Second sliding column; 424. Sliding sleeve; 425. First spring; 426. Actuating handle; 4261. First lever segment; 4262. Second lever segment;

[0029] 50. Buffer mechanism; 51. Fixed column; 52. Sliding column; 521. First stop block; 53. Sliding block; 531. Second stop block; 54. Second spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] To address the problem that existing dustproof protection structures cannot meet the comprehensive requirements of high reliability and high maintainability for high-speed railway tunnel communication systems, this invention provides a communication cabinet suitable for high-speed railway tunnels.

[0032] like Figures 1 to 6As shown, a communication cabinet suitable for high-speed railway tunnels is used to be fixed to the wall 1 inside the high-speed railway tunnel. The communication cabinet includes a cabinet body 10, a dustproof component 20, a windproof component 30, and a locking mechanism 40. The cabinet body 10 is used to fix to the wall 1 inside the high-speed railway tunnel. At least one ventilation opening 11 is opened on the surface of the cabinet body 10 facing away from the wall 1. The first ventilation opening 11 is used to connect the receiving cavity of the cabinet body 10 with the outside world to dissipate heat from the heat-generating components located in the receiving cavity. The dustproof component 20 includes a frame structure 21 and a dustproof net 22. The frame structure 21 is movably disposed at the first ventilation opening 11 and has a second ventilation opening 211. The dustproof net 22 is slidably disposed on the surface of the frame structure 21 facing the receiving cavity and blocks the second ventilation opening 211. The dustproof net 22 is detachably connected to the frame structure 21. The windproof component 30 includes a windproof base 31 and a windproof plate 32. The windproof base 31 is arranged in pairs on the side of the cabinet body 10. Both sides are at least for connection to the wall 1. The two ends of the wind baffle 32 are respectively connected to two wind baffle bases 31 and at least cover the second ventilation opening 211. The wind baffle 32 is set at a distance from the dustproof component 20, and the wind baffle 32 is detachably connected to the wind baffle base 31. The locking mechanism 40 includes a limiting block 41 and a locking component 42. The limiting block 41 is set on the cabinet body 10, and the locking component 42 is movably set on the frame structure 21. The locking component 42 has a function for connecting with the wall 1. The locking end of the limiting block 41 is engaged; wherein, when the wind baffle 32 and the wind baffle base 31 are connected and the locking end and the limiting block 41 are locked, the frame structure 21 is located at the first ventilation opening 11 to achieve the heat dissipation and dust prevention performance of the communication cabinet; when the wind baffle 32 and the wind baffle base 31 are disassembled and the locking end and the limiting block 41 are unlocked, the frame structure 21 moves away from the first ventilation opening 11 to provide operating space for replacing the dustproof net 22.

[0033] The technical solution of this application provides a communication cabinet suitable for high-speed railway tunnels, comprising a cabinet body 10 fixed to the tunnel wall 1. A first ventilation opening 11 is provided on the side of the cabinet facing away from the wall 1, connecting the internal cavity of the cabinet to the external environment to dissipate heat from the heat-generating components. The frame structure 21 of the dustproof component 20 is movably mounted at the first ventilation opening 11, with a second ventilation opening 211 on it. A dustproof net 22 is slidably installed on the surface of the frame structure 21 facing the cavity and completely covers the second ventilation opening 211. The dustproof net 22 is detachably connected to the frame structure 21 for easy replacement. The windbreak bases 31 of the windbreak component 30 are fixed in pairs to both sides of the cabinet body 10 and connected to the tunnel wall 1. The windbreak plate 32 is detachably connected to both ends of the two windbreak bases 31, covering the outside of the second ventilation opening 211 and maintaining a distance from the dustproof component 20, forming an external airflow buffer zone. This effectively blocks high-speed airflow and dust from directly impacting the dustproof net 22 while ensuring ventilation efficiency. The limiting block 41 of the locking mechanism 40 is fixed to the cabinet body 10, and the locking component 42 is movably assembled on the frame structure 21, with its locking end forming a mechanical lock with the limiting block 41. When the wind deflector 32 is connected to the wind deflector base 31 and the locking end of the locking component 42 is locked to the limiting block 41, the frame structure 21 is accurately positioned and tightly fitted to the first ventilation opening 11, ensuring that the dustproof net 22 can still stably perform its dustproof function under high wind pressure. When the dustproof net 22 needs to be replaced, it is only necessary to release the locking relationship between the locking component 42 and the limiting block 41, which can push the frame structure 21 to detach from the first ventilation opening 11, exposing the dustproof net 22 to the operating space. At this time, the wind deflector 32 does not need to be disassembled and continues to perform its windproof protection function, thereby realizing the independent, non-destructive, and convenient disassembly and assembly of the dustproof net 22 without damaging the structure of the wind deflector component 30. This solution, through the movable design of the frame structure 21 and the linkage control of the locking component 42, completely solves the problems of cumbersome operation, low efficiency and seal damage caused by the need to disassemble the entire external windproof device when replacing the dustproof net 22 in the traditional structure, while maintaining excellent dustproof and windproof performance in the tunnel environment.

[0034] It should be noted that, in this application, the surface of the cabinet body 10 with the first ventilation opening 11 is flat; and / or, the frame structure 21 and the dustproof net 22 are both flat structures; and / or, the wind baffle 32 is an arc-shaped structure. In this way, the surface of the cabinet body 10 with the first ventilation opening 11 is flat, and the frame structure 21 and the dustproof net 22 are also flat structures. The three together form a tightly fitted flat sealing interface, which effectively eliminates airflow leakage and disturbance caused by curved or non-planar structures, significantly improves the sealing stability between the dustproof component 20 and the cabinet body 10, and ensures that the airflow field is uniform and stable when the high-speed airflow passes through the first ventilation opening 11. At the same time, the wind baffle 32 adopts an arc-shaped structure. Its curved shape allows the high-speed airflow passing through the high-speed railway tunnel to be gently diverted along the arc surface when it hits the wind baffle 32, and the concentrated stress is evenly distributed to the entire plate, which significantly reduces the risk of local stress concentration and prevents the wind baffle 32 from deforming or fatigued due to long-term impact. Moreover, the arc-shaped wind baffle 32 is set at a distance from the dustproof component 20, which not only avoids the airflow directly impacting the dustproof net 22, but also provides sufficient operating space for the disassembly of the frame structure 21 and the replacement of the dustproof net 22, achieving synergistic optimization of dustproof performance, structural strength and maintenance convenience.

[0035] like Figure 2 and Figure 3As shown, the limiting block 41 has two limiting grooves and two clearance notches 411, with the two clearance notches 411 corresponding one-to-one with the two limiting grooves; the surface of the frame structure 21 facing the wind deflector 32 is provided with two sets of limiting rails, which are spaced apart along the height direction of the frame structure 21, and each set of limiting rails includes at least two limiting rails 212 of the same height; the locking assembly 42 includes two moving posts 421 arranged in pairs, which are slidably disposed at the two sets of limiting rails respectively, and the ends of the two moving posts 421 facing the two limiting grooves respectively form two locking ends, and the two moving posts 421 are radially movably connected to allow the two Each movable column 421 can move closer to or further away from each other along its respective radial direction; wherein, the limiting groove includes a first groove segment and a second groove segment that are connected, the first groove segment extends vertically and the second groove segment extends horizontally, so that the limiting groove is L-shaped, and the clearance notch 411 is connected to the end of the second groove segment away from the first groove segment; the two locking ends are respectively limited and engaged in the two first groove segments so that the two locking ends and the limiting block 41 are in a locked state, and the two movable columns 421 move closer to each other so that the two locking ends slide along their respective first groove segments to the second groove segments, and slide out through their respective clearance notches 411, so that the two locking ends and the limiting block 41 are in an unlocked state. Thus, the limiting block 41 is provided with two limiting grooves and two clearance notches 411 corresponding to the limiting grooves. The side surface of the frame structure 21 facing the wind deflector 32 is provided with two sets of limiting rails spaced apart along the height direction. Each set of limiting rails contains at least two limiting rails 212 at the same height. The locking assembly 42 includes two moving posts 421 arranged in pairs. The two moving posts 421 are slidably assembled between the two sets of limiting rails, and their ends facing the limiting block 41 each form a locking end. The two moving posts 421 achieve a linkage movement of moving closer or further away from each other through a radially movable connection structure. When the two locking ends are respectively engaged in the first groove of the limiting groove, the frame structure 21 is reliably limited to the first groove. At one ventilation opening 11, the communication cabinet is kept in a sealed and heat-dissipating state. When the dust filter 22 needs to be replaced, the operator only needs to apply a one-way pressing force to make the two moving columns 421 move radially closer in sync. The two locking ends will slide vertically along the first groove to the second groove under the guidance of the limit bar 212, and then slide horizontally out through the clearance notch 411. This achieves the synchronous unlocking of the two locking ends and the limit block 41. There is no need to operate them one by one or use tools, which greatly reduces the difficulty of disassembly and assembly in a small space, improves the efficiency and reliability of operation, and since the unlocking action is triggered by a single pressing action, the structure has strong linkage, avoiding the problems of easy jamming and asynchrony of traditional multi-point independent unlocking, ensuring that the dust filter assembly 20 is stable and smooth to disassemble and assemble.

[0036] like Figure 3As shown, the locking assembly 42 further includes a first sliding post 422, a second sliding post 423, a sliding sleeve 424, and a first spring 425. The first end of the first sliding post 422 is connected to the first moving post 421; the first end of the second sliding post 423 is connected to the second moving post 421, and the second sliding post 423 is concentrically arranged with the first sliding post 422. The inner diameter of the second sliding post 423 is greater than or equal to the outer diameter of the first sliding post 422, so that the second end of the first sliding post 422 and the second end of the second sliding post 423 slide in cooperation; the first end of the sliding sleeve 424 is connected to the first moving post 421. The sliding sleeve 424 is connected, with its second end extending toward the second sliding post 423, and the inner diameter of the sliding sleeve 424 being greater than or equal to the outer diameter of the second sliding post 423, so that the sliding sleeve 424 and the second sliding post 423 can slide together. The first spring 425 is sleeved on the outer periphery of the first sliding post 422, and the first end of the first spring 425 is connected to the first moving post 421, and the second end of the first spring 425 is connected to the second end of the second sliding post 423, so that the restoring force of the first spring 425 indirectly provides force to the first moving post 421 through the second sliding post 423, thereby forming a symmetrical restoring force. Thus, when the two moving posts 421 of the locking assembly 42 achieve radial linkage through the first sliding post 422 and the second sliding post 423 respectively, the first sliding post 422 and the second sliding post 423 adopt a concentric sleeve structure, and the inner diameter of the second sliding post 423 is not less than the outer diameter of the first sliding post 422, so that the second end of the first sliding post 422 can slide freely within the second end of the second sliding post 423. At the same time, the first end of the sliding sleeve 424 is fixedly connected to one of the moving posts 421, and its second end extends and is sleeved on the outer periphery of the second sliding post 423, forming a radial limit and guide for the second sliding post 423. The first spring 4 The 25 is sleeved on the outside of the first sliding post 422, and its two ends are respectively connected to the second ends of the first moving post 421 and the second sliding post 423. This allows the reset force released by the first spring 425 after unlocking to be synchronously transmitted to the two moving posts 421 through the second sliding post 423, thereby forming a symmetrical and balanced restoring driving force between the two moving posts 421. This effectively avoids the offset of the locking end or the lag in return caused by uneven force on one side, and ensures that the two locking ends slide into the first groove of the limit block 41 accurately and synchronously during the reset process, achieving a stable and reliable locking state and improving the operational consistency and long-term reliability of the overall structure.

[0037] like Figure 3As shown, the axial length of the sliding sleeve 424 is greater than the axial length of the first sliding column 422. In this way, the axial length of the sliding sleeve 424 is greater than the axial length of the first sliding column 422, so that the sliding sleeve 424 completely covers the sliding engagement area between the first sliding column 422 and the second sliding column 423 in the axial direction. This effectively constrains the axial displacement that may occur during the radial relative movement of the first sliding column 422, ensuring that the first sliding column 422 always maintains a coaxial sliding state with the second sliding column 423, avoiding jamming or uneven force due to axial misalignment. On this basis, the sliding engagement relationship between the sliding sleeve 424 and the second sliding column 423 further enhances the overall stability of the structure, so that the reset force of the first spring 425 transmitted to the two moving columns 421 through the second sliding column 423 can act precisely and symmetrically on the locking end, ensuring that the locking end slides smoothly into and out between the limiting groove and the clearance notch 411, improving the reliability and response accuracy of the locking mechanism 40 when switching between locking and unlocking states, and ensuring the stable fixation and convenient disassembly and assembly of the dustproof component 20 in the complex vibration environment of the high-speed rail tunnel.

[0038] like Figure 3 As shown, the locking assembly 42 also includes two toggle handles 426, which are respectively connected to two moving posts 421. Each toggle handle 426 includes a first rod segment 4261 and a second rod segment 4262. The first end of the first rod segment 4261 is connected to the moving post 421, and the second end of the first rod segment 4261 extends vertically. The second rod segment 4262 extends along the surface perpendicular to the frame structure 21 toward the wind deflector 32, and the second end of the first rod segment 4261 is connected to the first end of the second rod segment 4262. The second end of the second rod segment 4262 forms a manual operation end. In this way, when the operator needs to replace the dustproof net 22, force can be applied to the manual operating end formed by the second end of the second rod segment 4262 of the toggle handle 426. Utilizing the leverage provided by this structure, the external force is transmitted through the second rod segment 4262 to the first rod segment 4261. The first rod segment 4261 then drives the moving column 421 to move closer to each other radially, causing the locking end formed by the end of the moving column 421 facing the limiting block 41 to disengage from the limiting groove of the limiting block 41, thereby releasing the locking state. Since the first rod segment 4261 of the toggle handle 426 extends vertically and the second rod segment 4262 extends perpendicular to the side surface of the frame structure 21 facing the wind deflector 32, this L-shaped structure effectively expands the operating space, allowing the operator to conveniently complete the unlocking action from the outside without entering the frame structure 21 or being restricted by the limiting rail group. This significantly improves the efficiency and safety of disassembling and replacing the dustproof net 22, while ensuring the reliable operation performance of the locking assembly 42 in confined spaces.

[0039] like Figure 4As shown, the dustproof component 20 also includes a pivot shaft 23. The first end of the pivot shaft 23 is connected to the wall of the cabinet body 10 located at the first ventilation opening 11, and the second end of the pivot shaft 23 is pivotally connected to the frame structure 21 so that the squirrel frame structure 21 is rotated around the pivot shaft 23. In this way, when the locking end of the locking component 42 disengages from the limiting block 41, the frame structure 21 can stably deviate from the first ventilation opening 11 with the pivot axis 23 as the rotation center. Since the first end of the pivot axis 23 is fixedly connected to the wall of the cabinet body 10 located at the first ventilation opening 11, and the second end is pivotally connected to the frame structure 21, the movement of the frame structure 21 is constrained on an arc trajectory with the pivot axis 23 as the axis, avoiding offset, jamming or misalignment caused by free sliding or shaking. This provides a stable, controllable and unobstructed operating space for the disassembly and replacement of the dustproof net 22. At the same time, the pivot axis 23 can accurately return to the first ventilation opening 11 when the frame structure 21 is reset, ensuring that the locking component 42 and the limiting block 41 are accurately engaged again, ensuring the sealing and dustproof performance of the communication cabinet under normal working conditions, and improving maintenance efficiency and system reliability.

[0040] like Figure 5 and Figure 6 As shown, the communication cabinet also includes a buffer mechanism 50, which has a fixed end and a movable end. The fixed end is connected to the frame structure 21, and the movable end is slidably engaged with the fixed end. The end face of the movable end facing away from the fixed end is set towards the wind deflector 32 so that when the wind deflector 32 is bent and deformed by the airflow, it contacts the movable end and pushes the movable end to slide towards the fixed end. In this way, the fixed end of the buffer mechanism 50 is connected to the frame structure 21, and the movable end is slidably engaged with the fixed end. The end face of the movable end facing away from the fixed end is set towards the wind deflector 32. When the high-speed airflow in the high-speed railway tunnel impacts the wind deflector 32 and causes it to bend and deform, the deformed part of the wind deflector 32 will directly contact and push the movable end of the buffer mechanism 50 to slide towards the fixed end. The impact kinetic energy is absorbed and dissipated through the sliding engagement between the movable end and the fixed end, so that the deformation stress on the wind deflector 32 is directly borne by the buffer mechanism 50, avoiding the stress being directly transmitted to the frame structure 21. This effectively protects the structural integrity of the frame structure 21 and the dustproof net 22, while ensuring the stability and detachability of the dustproof component 20 under long-term high airflow conditions, providing a reliable structural basis for the convenient replacement of the dustproof net 22.

[0041] like Figure 6As shown, the buffer mechanism 50 includes a fixed post 51, a sliding post 52, a sliding block 53, and a second spring 54. The first end of the fixed post 51 is connected to the frame structure 21 to form a fixed end. The first end of the sliding post 52 extends into the second end of the fixed post 51, allowing the outer circumferential surface of the sliding post 52 to slide against the inner circumferential surface of the fixed post 51. A first stop block 521 protrudes from the second end of the sliding post 52, protruding radially along the sliding post 52, to engage with the fixed post 54 when the sliding post 52 slides to a first preset position. The axial end face of the second end of 1 abuts against each other; the outer peripheral surface of the sliding block 53 slides against the inner peripheral surface of the sliding column 52; the first end of the second spring 54 is connected to the bottom surface of the hollow cavity of the fixed column 51, and the second end of the second spring 54 is connected to the first end of the sliding block 53, so that the sliding block 53 forms a movable end; part of the second spring 54 is located in the hollow cavity of the fixed column 51, and the other part of the second spring 54 is located in the hollow cavity of the sliding column 52; wherein, the end face of the sliding block 53 facing away from the second spring 54 forms a mating surface for cooperating with the wind deflector 32. Thus, the first end of the fixed column 51 is connected to the frame structure 21, forming the fixed end of the buffer mechanism 50. The first end of the sliding column 52 extends into the inner cavity of the second end of the fixed column 51, so that the outer circumferential surface of the sliding column 52 and the inner circumferential surface of the fixed column 51 achieve sliding engagement. The second end of the sliding column 52 is radially protruding with a first stop block 521. When the wind deflector 32 is bent and deformed by the impact of high-speed airflow and presses the sliding block 53, the sliding block 53 slides along the inner circumferential surface of the sliding column 52 towards the fixed column 51, driving the sliding column 52 to move synchronously into the inner cavity of the fixed column 51. At this time, the second spring 54 is compressed, with one part located in the hollow cavity of the fixed column 51 and the other part located in the hollow cavity of the sliding column 52, jointly absorbing the kinetic energy of the airflow and converting it into elastic potential energy. When the sliding column 52 moves to the first preset position, the first stop block 521 abuts against the axial end face of the second end of the fixed column 51, effectively limiting excessive compression and preventing structural failure. The end face of the sliding block 53 facing away from the second spring 54 serves as the mating surface that directly contacts the wind deflector 32, smoothly transmitting the impact force to the buffer mechanism 50, avoiding the impact force from directly acting on the frame structure 21 and the locking mechanism 40. Thus, after the airflow dissipates, the second spring 54 elastically resets and pushes the sliding block 53 and the sliding column 52 to slide in opposite directions, allowing the wind deflector 32 to return to its original position, ensuring the stability of the frame structure 21 and the long-term reliable locking of the locking end and the limit block 41, significantly improving the dustproof stability and structural durability of the communication cabinet in the high wind speed environment of the high-speed railway tunnel.

[0042] like Figure 6As shown, a second stop block 531 is provided at the end of the sliding block 53 away from the second spring 54. The second stop block 531 protrudes radially from the sliding block 53 to abut against the axial end face of the second end of the sliding column 52 when the sliding block 53 slides to the second preset position. In this way, when the wind deflector 32 bends and deforms due to the impact of high-speed airflow in the tunnel, its mating surface contacts the sliding block 53 and pushes the sliding block 53 to slide along the inner circumference of the sliding column 52 towards the fixed column 51, compressing the second spring 54 to achieve a buffering effect. At this time, the second stop block 531 provided at the end of the sliding block 53 away from the second spring 54 protrudes radially. When the sliding block 53 slides to the second preset position, the second stop block 531 directly abuts against the second end axial end face of the sliding column 52, forming a mechanical limit, effectively preventing the sliding block 53 from continuing to move towards the fixed column 51, preventing the sliding block 53 from completely detaching from the inner circumference of the sliding column 52, thereby ensuring the structural integrity and functional stability of the buffer mechanism 50 under continuous airflow impact. This design not only avoids the risk of parts falling off or mechanism failure due to excessive sliding, but also ensures the repeatability and long-term reliability of the buffer stroke, enabling the communication cabinet to maintain good dustproof and heat dissipation performance in the complex aerodynamic environment of the high-speed rail tunnel.

[0043] The process of the technical solution in this application is described below:

[0044] When the communication cabinet is installed on the wall inside the high-speed rail tunnel, the two ends of the wind baffle 32 are connected to the paired wind baffle bases 31 and cover the outside of the second ventilation opening 211 of the dustproof component 20, and the wind baffle 32 is set at a distance from the dustproof component 20; the locking ends of the two moving columns 421 of the locking component 42 are respectively limited and engaged in the two first slots of the limiting block 41, the frame structure 21 is accurately positioned and tightly fitted to the first ventilation opening 11 of the cabinet body 10, at this time the dustproof net 22 covers the second ventilation opening 211 of the frame structure 21, and the receiving cavity of the cabinet body 10 is connected to the outside through the first ventilation opening 11 and the second ventilation opening 211 to realize the heat dissipation of the heat-generating element, while blocking the entry of external dust.

[0045] When the dustproof net 22 needs to be replaced, the operator applies external force to the manual operation end formed by the second end of the second rod segment 4262 of the lever 426. This external force is transmitted to the first rod segment 4261 through the second rod segment 4262, and then the first rod segment 4261 drives the two moving columns 421 to approach each other along their respective radial directions. Under the guidance of the limit bar group, the locking ends of the two moving columns 421 slide vertically along the corresponding first groove segment to the second groove segment, and slide horizontally out through the corresponding clearance notch 411, so that the locking ends are released from the locking state of the limit block 41. At this time, the frame structure 21 rotates away from the first ventilation opening 11 with the pivot axis 23 as the axis, and the dustproof net 22 is exposed to the operating space. The operator can remove the dustproof net 22 from the frame structure 21 and replace it with a new dustproof net 22.

[0046] After the replacement is completed, the operator rotates the frame structure 21 in the opposite direction around the pivot axis 23 to reset it, so that the frame structure 21 is re-fitted to the first ventilation opening 11; then the operator releases the toggle handle 426, the first spring 425 releases the reset force, and indirectly provides symmetrical restoring driving force to the two moving columns 421 through the second sliding column 423, so that the two moving columns 421 move away from each other radially, and their locking ends slide back into the first groove of the limiting block 41 to restore the locking state. The frame structure 21 is stably limited at the first ventilation opening 11.

[0047] When a high-speed train passes through a tunnel at high speed, the airflow impacts the wind deflector 32, causing it to bend and deform towards the cabinet body 10. The bent part of the wind deflector 32 contacts the end face of the sliding block 53 of the buffer mechanism 50 away from the second spring 54 and pushes the sliding block 53 to slide along the inner circumference of the sliding column 52 towards the fixed column 51. This causes the sliding column 52 to move synchronously into the inner cavity of the fixed column 51, compressing the second spring 54. This results in one part of the second spring 54 being located in the hollow cavity of the fixed column 51 and the other part being located in the hollow cavity of the sliding column 52, absorbing the kinetic energy of the airflow and converting it into elastic potential energy. When the sliding block 53 slides... When the sliding block 53 moves to the second preset position, the second stop block 531 abuts against the axial end face of the second end of the sliding column 52, restricting the sliding block 53 from moving further. When the sliding column 52 moves to the first preset position, the first stop block 521 abuts against the axial end face of the second end of the fixed column 51, restricting the sliding column 52 from moving further. After the airflow dissipates, the elastic restoring force of the second spring 54 pushes the sliding block 53 and the sliding column 52 to slide back to their original positions, so that the wind deflector 32 returns to its original position and separates from the buffer mechanism 50. The frame structure 21 and the locking assembly 42 maintain stable positioning, ensuring the long-term sealing and dustproof performance of the dustproof net 22.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A communication cabinet suitable for high-speed railway tunnels, characterized in that, The communication cabinet is designed for fixing to the wall (1) inside a high-speed railway tunnel. It includes: The cabinet body (10) is used to fix the cabinet body (1) on the wall (1) inside the high-speed railway tunnel. At least the cabinet body (10) has a first ventilation opening (11) on the side surface away from the wall (1). The first ventilation opening (11) is used to connect the receiving cavity of the cabinet body (10) with the outside world to dissipate heat for the heat-generating element located in the receiving cavity. A dustproof assembly (20) includes a frame structure (21) and a dustproof net (22). The frame structure (21) is movably disposed at the first vent (11). The frame structure (21) has a second vent (211). The dustproof net (22) is slidably disposed on the surface of the frame structure (21) facing the cavity and blocks the second vent (211). The dustproof net (22) is detachably connected to the frame structure (21). A windbreak assembly (30) includes a windbreak base (31) and a windbreak plate (32). The windbreak bases (31) are arranged in pairs on both sides of the cabinet body (10) and are at least used to connect with the wall (1). The two ends of the windbreak plate (32) are respectively connected to the two windbreak bases (31) and at least cover the second ventilation opening (211). The windbreak plate (32) is arranged at a distance from the dustproof assembly (20), and the windbreak plate (32) is detachably connected to the windbreak base (31). The locking mechanism (40) includes a limiting block (41) and a locking component (42). The limiting block (41) is disposed on the cabinet body (10), and the locking component (42) is movably disposed on the frame structure (21). The locking component (42) has a locking end for cooperating with the limiting block (41). When the wind deflector (32) and the wind deflector base (31) are connected, and the locking end and the limiting block (41) are locked, the frame structure (21) is located at the first ventilation opening (11) to achieve the heat dissipation and dust prevention performance of the communication cabinet. When the wind deflector (32) and the wind deflector base (31) are in a disassembled state, and the locking end and the limiting block (41) are in an unlocked state, the frame structure (21) moves away from the first ventilation opening (11) to provide operating space for replacing the dustproof net (22).

2. The communication cabinet according to claim 1, characterized in that, The surface of the cabinet body (10) having the first ventilation opening (11) on one side is flat; and / or, Both the frame structure (21) and the dustproof net (22) are planar structures; and / or, The wind deflector (32) has an arc-shaped structure.

3. The communication cabinet according to claim 1, characterized in that, The limiting block (41) has two limiting grooves and two clearance notches (411), and the two clearance notches (411) correspond one-to-one with the two limiting grooves; The frame structure (21) has two sets of limiting rails protruding from the surface facing the wind deflector (32). The two sets of limiting rails are spaced apart along the height direction of the frame structure (21), and each set of limiting rails includes at least two limiting rails (212) of the same height. The locking component (42) includes: Two movable columns (421) are arranged in pairs. The two movable columns (421) are slidably arranged at the two sets of the limiting rail groups respectively. The two movable columns (421) form two locking ends at one end facing the two limiting grooves respectively. The two movable columns (421) are radially movably connected so that the two movable columns (421) can move closer to each other or move further away from each other along their respective radial directions. The limiting groove includes a first groove segment and a second groove segment that are connected. The first groove segment extends vertically and the second groove segment extends horizontally, so that the limiting groove is L-shaped. The clearance notch (411) is connected to the end of the second groove segment that is away from the first groove segment. The two locking ends are respectively limited and engaged in the two first slots so that the two locking ends and the limiting block (41) are in the locked state. The two moving columns (421) move closer to each other so that the two locking ends slide along the corresponding first slots to the second slots and slide out through the corresponding avoidance notches (411) so that the two locking ends and the limiting block (41) are in the unlocked state.

4. The communication cabinet according to claim 3, characterized in that, The locking assembly (42) further includes: A first sliding post (422) is connected at its first end to the first movable post (421); The second sliding post (423) has its first end connected to the second moving post (421), and the second sliding post (423) is concentrically arranged with the first sliding post (422). The inner diameter of the second sliding post (423) is greater than or equal to the outer diameter of the first sliding post (422), so that the second end of the first sliding post (422) and the second end of the second sliding post (423) slide in cooperation. A sliding sleeve (424) has a first end connected to the first movable post (421), and a second end extending toward the second sliding post (423). The inner diameter of the sliding sleeve (424) is greater than or equal to the outer diameter of the second sliding post (423) so that the sliding sleeve (424) and the second sliding post (423) slide in cooperation. A first spring (425) is sleeved on the outer periphery of the first sliding post (422), and the first end of the first spring (425) is connected to the first moving post (421), and the second end of the first spring (425) is connected to the second end of the second sliding post (423), so that the restoring force of the first spring (425) indirectly provides force to the first moving post (421) through the second sliding post (423) to form a symmetrical restoring force.

5. The communication cabinet according to claim 4, characterized in that, The axial length of the sliding sleeve (424) is greater than the axial length of the first sliding column (422).

6. The communication cabinet according to claim 3, characterized in that, The locking assembly (42) further includes: Two toggle handles (426) are respectively connected to two movable columns (421); Each of the aforementioned toggle handles (426) includes: The first rod segment (4261) has a first end connected to the movable column (421) and a second end extending in the vertical direction. The second rod segment (4262) extends along a surface perpendicular to the frame structure (21) toward the wind deflector (32), and the second end of the first rod segment (4261) is connected to the first end of the second rod segment (4262), and the second end of the second rod segment (4262) forms a manual operation end.

7. The communication cabinet according to claim 1, characterized in that, The dustproof component (20) also includes: A pivot shaft (23) is provided. The first end of the pivot shaft (23) is connected to the wall of the cabinet body (10) located at the first ventilation opening (11). The second end of the pivot shaft (23) is pivotally connected to the frame structure (21) so that the squirrel frame structure (21) is rotated around the pivot shaft (23).

8. The communication cabinet according to claim 1, characterized in that, The communication cabinet also includes: The buffer mechanism (50) has a fixed end and a movable end. The fixed end is connected to the frame structure (21), and the movable end is slidably engaged with the fixed end. The end face of the movable end facing away from the fixed end is arranged towards the wind deflector (32) so that when the wind deflector (32) is bent and deformed by airflow impact, it contacts the movable end and pushes the movable end to slide towards the fixed end.

9. The communication cabinet according to claim 8, characterized in that, The buffer mechanism (50) includes: A fixing post (51) is provided, the first end of which is connected to the frame structure (21) to form the fixing end. A sliding column (52) has its first end extending into the second end of the fixed column (51) so that the outer circumferential surface of the sliding column (52) slides in cooperation with the inner circumferential surface of the fixed column (51). A first stop block (521) is provided protruding from the second end of the sliding column (52). The first stop block (521) protrudes radially from the sliding column (52) so as to abut against the axial end face of the second end of the fixed column (51) when the sliding column (52) slides to the first preset position. Sliding block (53), the outer peripheral surface of the sliding block (53) is in sliding engagement with the inner peripheral surface of the sliding column (52); The second spring (54) has its first end connected to the bottom surface of the hollow cavity of the fixed column (51), and its second end connected to the first end of the sliding block (53) so that the sliding block (53) forms the movable end. A portion of the second spring (54) is located inside the hollow cavity of the fixed column (51), and another portion of the second spring (54) is located inside the hollow cavity of the sliding column (52). The sliding block (53) has a mating surface on the side opposite to the second spring (54) for engaging with the wind deflector (32).

10. The communication cabinet according to claim 9, characterized in that, The sliding block (53) has a second stop block (531) protruding from one end away from the second spring (54). The second stop block (531) protrudes radially from the sliding block (53) to abut against the axial end face of the second end of the sliding column (52) when the sliding block (53) slides to the second preset position.

Images