Bilateral exterior corridor locomotive pre-wiring structure, method, and carbody structure

Abstract

The application provides a double-side outer corridor locomotive pre-wiring structure, method and car body structure, the pre-wiring structure includes a chassis, a device mounting seat, a corridor cover plate, a vehicle-mounted device and a sandwich space; the chassis includes two chassis side beams and a chassis floor, the upper surface of the chassis side beam is higher than the upper surface of the chassis floor; the device mounting seat is symmetrically arranged on the inner side of the chassis side beam and is fixedly connected with the chassis floor, and the corridor cover plate is movably mounted between the chassis side beam and the device mounting seat; the vehicle-mounted device is mounted above the chassis floor through the device mounting seat; the sandwich space includes a central sandwich space and two side sandwich spaces, and an overall wire slot and a pipe arrangement are arranged in the sandwich space, and the overall wire slot is vertically arranged above the pipe arrangement, so that the overall wire slot can complete the wiring and binding of the cable in the wire slot under the vehicle, and the pipe laying and clamping process, and then the overall wire slot and the pipe arrangement are arranged in the sandwich space, the wiring process is moved forward, and therefore the production and manufacturing efficiency is improved and the wiring difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle technology, and in particular to a pre-wiring structure, method and body structure for a locomotive with double-sided external corridors. Background Technology

[0002] In the field of electric locomotive manufacturing, traditional locomotives with internal corridors typically employ a central corridor design (located in the middle of the machine room), with equipment symmetrically arranged on both sides of the corridor. This layout allows for the pre-layout of central cable trays / pipelines within the machine room. Specifically, the cabling and binding of cables within the cable trays and the laying and clamping of pipes are completed off-road. The entire cable tray / pipeline is then hoisted onto the locomotive for installation. Finally, the cables and pipes at each exit are connected to their corresponding positions. This method of moving the cabling and pipe laying process forward significantly improves manufacturing efficiency, greatly reduces the workload and difficulty for on-site construction personnel, shortens the overall construction period, lowers labor costs, and reduces material waste.

[0003] However, for locomotives with a double-sided external corridor design (characterized by equipment being centrally located in the engine room in the middle of the car body, with connecting external corridors on both sides), the structural layout results in a lack of continuous space in the middle of the engine room to accommodate cable trays / conduits. Therefore, existing external corridor locomotive wiring and conduit routing combines a central cable tray / conduit passing through the longitudinal and transverse beams under the car body underframe with cable trays / conduits on both sides arranged in the space under the external corridor. This method inevitably requires openings in the load-bearing longitudinal and transverse beams under the underframe, weakening the underframe beam's load-bearing capacity and complicating its design. Furthermore, the sealing of the wiring path, ease of maintenance, and drainage feasibility are key design challenges when routing cables and conduits in the space under the external corridors on both sides of the locomotive.

[0004] Currently, there is no effective solution in the industry for the layout and space issues of the central cable trays / pipes in locomotives with external corridors. There are two approaches to arranging the cable trays / pipes on both sides under the external corridor floor. One approach, considering the sealing of the wiring path, uses a welded corridor floor, but this results in extremely poor convenience for later cable maintenance. More importantly, the wiring process under the corridor floor can only be carried out during the overall vehicle assembly stage, making it impossible to move the "pre-wiring / pipe arrangement under the car" process forward, as is possible with locomotives with internal corridors, resulting in low locomotive manufacturing efficiency. The other approach, considering ease of maintenance, uses a movable-installation corridor floor, but this structural design places extremely high and complex requirements on the sealing of the corridor floor installation structure, drainage design, and its supporting car body structure.

[0005] In summary, for a locomotive with bilateral external corridors, processes such as routing and binding of cables in the wire ducts and the layout, mounting and clamping of pipelines cannot be completed in advance under the vehicle, that is, the critical "process forward shifting" cannot be realized. Therefore, the entire vehicle cabling and piping work of current external corridor locomotives is forced to be carried out in the late stage of final assembly. At this time, the carbody structure is basically finalized, and the operation space is limited, resulting in problems such as low manufacturing efficiency, extremely high operation difficulty for on-site workers, and prolonged production cycle.

[0006] Therefore, for locomotives with bilateral external corridors, how to realize the forward shifting of the cabling process to improve manufacturing efficiency and reduce operation difficulty is an urgent problem to be solved by those skilled in the art. Contents of the Invention

[0007] Aiming at the problem of low manufacturing efficiency and high operation difficulty caused by the fact that the cabling of locomotives with bilateral external corridors in the prior art is mostly carried out in the late stage of final assembly, the present invention provides a pre-cabling structure suitable for locomotives with bilateral external corridors and a method thereof. By implementing pre-cabling in the early stage of carbody manufacturing, the forward shifting of the cabling process is realized, so as to improve manufacturing efficiency and reduce cabling difficulty. In addition, the present invention also provides a carbody structure comprising the pre-cabling structure.

[0008] A pre-cabling structure for a locomotive with bilateral external corridors, comprising: A underframe, comprising two underframe side beams and an underframe floor located between the underframe side beams, wherein the upper surface of the underframe side beam is higher than the upper surface of the underframe floor; Two equipment mounting seats, symmetrically arranged on the inner side of the underframe side beam, and fixedly connected with the underframe floor; Corridor cover plates, movably installed between the underframe side beams and the equipment mounting seats; On-board equipment, mounted above the underframe floor through the equipment mounting seats; Interlayer spaces, including a central interlayer space and two side interlayer spaces, wherein the central interlayer space is enclosed and formed by the underframe floor, the equipment mounting seats and the on-board equipment, and the two side interlayer spaces are enclosed and formed by the underframe floor, the underframe side beams, the equipment mounting seats and the corridor cover plates; the integrated wire duct and pipe arrangement are arranged in the interlayer spaces, and the integrated wire duct is arranged vertically above the pipe arrangement.

[0009] Further, the cross section of the underframe side beam is a "mouth"-shaped structure, and the height is greater than the width.

[0010] Further, the underframe further comprises: Underframe longitudinal beams, arranged at the bottom of the underframe floor at positions corresponding to the equipment mounting seats; Underframe cross beams, arranged at the bottom of the underframe floor and located between the two underframe side beams.

[0011] Furthermore, the lower surface of the base frame side beam is lower than the lower surfaces of the base frame cross beam and the base frame longitudinal beam.

[0012] Furthermore, multiple interlayer drainage holes are provided on the underframe floor and below the corridor cover along the longitudinal direction of the locomotive.

[0013] Furthermore, the plurality of the interlayer drainage holes are arranged in a wave-like pattern along the longitudinal direction of the locomotive.

[0014] Furthermore, the corridor cover plate is installed between the base frame side beam and the equipment mounting base via a cover plate mounting bracket; the cover plate mounting bracket includes: An inner mounting bracket is provided on the side wall of the equipment mounting base; An external mounting bracket is installed on the upper surface of the side beam of the base frame; A horizontal mounting bracket is detachably installed between the inner mounting bracket and the outer mounting bracket to connect two adjacent corridor covers.

[0015] Furthermore, a longitudinal water trough is provided between the inner mounting bracket and the side wall of the equipment mounting base.

[0016] Furthermore, the inner mounting bracket includes: The L-shaped curved plate includes a horizontal plate and a vertical plate. An inner mounting strip is provided on the side of the vertical plate facing the side wall of the equipment mounting base. The length of the inner mounting strip is the same as the length of the vertical plate, and the width of the inner mounting strip is less than the width of the horizontal plate. The longitudinal water trough is formed between the inner mounting strip and the side wall of the equipment mounting base. A notch is provided on the horizontal plate, with its opening facing the side wall of the equipment mounting base, for the passage of a drain pipe; A stiffening rib is provided at the bottom of the horizontal plate, avoiding the notch position.

[0017] Furthermore, a horizontal water tank is provided on the horizontal mounting bracket.

[0018] Furthermore, the lateral mounting bracket includes: U-shaped board; Two horizontal mounting strips are symmetrically arranged on the inner side of the folded edges on both sides of the U-shaped plate, and the horizontal water groove is formed between the two horizontal mounting strips; Four connecting blocks are symmetrically arranged at the four outer corners of the two folded edges of the U-shaped plate.

[0019] Furthermore, a rubber component is provided between the periphery of the lower surface of the corridor cover and the inner mounting bracket, the outer mounting bracket, and the transverse mounting bracket; And / or, the lower surface of the U-shaped plate is provided with an elastic pad at the position where it overlaps with the base frame side beam and the inner mounting bracket.

[0020] Furthermore, the upper surface of the equipment mounting base is higher than the upper surface of the underframe side beam, and the upper surface of the cover plate mounting bracket is set to be inclined outward from the locomotive at 1° to 3°.

[0021] Furthermore, the present invention also provides a method for pre-wiring locomotives in a double-sided outer corridor, comprising the following steps: Overall cable tray and pipe rack hoisting; Horizontal mounting bracket and elastic pad installation; Rubber component installation; Corridor cover installation.

[0022] Furthermore, the present invention provides a vehicle body structure, including the double-sided outer corridor locomotive pre-wiring structure described in any of the above embodiments.

[0023] Compared with the prior art, the double-sided outer corridor locomotive pre-wiring structure and method provided in this embodiment of the invention have at least the following technical effects: The double-sided external corridor locomotive pre-wiring structure includes a base frame, equipment mounting seats, corridor covers, onboard equipment, and a mezzanine space. The base frame comprises two base frame side beams and a base frame floor located between them, with the upper surface of the side beams higher than the upper surface of the base frame floor. Equipment mounting seats are symmetrically arranged inside the side beams and fixedly connected to the base frame floor, with their upper surface higher than the upper surface of the side beams. Corridor covers are movably installed between the side beams and the equipment mounting seats. Onboard equipment is mounted above the base frame floor via the equipment mounting seats. The upper surface of the side beams being higher than the upper surface of the base frame floor contributes to the wiring. This pre-wiring structure creates a mezzanine space between the underframe side beams, corridor covers, equipment mounting bases, vehicle-mounted equipment, and the underframe floor. Specifically, the mezzanine space includes a central mezzanine space and two side mezzanine spaces. The central mezzanine space is formed by the underframe floor, equipment mounting bases, and vehicle-mounted equipment, and is used to house the central integrated cable trays and conduits. The side mezzanine spaces are formed by the underframe floor, underframe side beams, equipment mounting bases, and corridor covers, and are used to house the side integrated cable trays and conduits. The integrated cable trays and conduits are laid within the mezzanine spaces, with the integrated cable trays arranged vertically above the conduits. This pre-wiring structure provides the central and side mezzanine spaces, allowing the cable routing and bundling of the integrated cable trays to be completed under the vehicle, as well as the conduit laying and clamping processes. The integrated cable trays and conduits are then placed within the mezzanine spaces, thus moving the wiring process forward, improving manufacturing efficiency, and reducing wiring difficulty.

[0024] Since the car body structure includes the double-sided outer corridor locomotive pre-wiring structure in the above embodiments, it has the technical effects of the double-sided outer corridor locomotive pre-wiring structure in the above embodiments, which will not be repeated here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a double-sided outer corridor locomotive pre-wiring structure according to an embodiment of the present invention; Figure 2 This is a partial schematic diagram of a locomotive pre-wiring structure with double-sided outer corridors according to an embodiment of the present invention; Figure 3 This is an exploded view of a double-sided outer corridor locomotive pre-wiring structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the inner mounting bracket according to an embodiment of the present invention; Figure 5 This is an exploded view of the inner mounting bracket according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of an outer mounting bracket according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a horizontal mounting bracket according to an embodiment of the present invention; Figure 8 This is a top view of a double-sided outer corridor locomotive pre-wiring structure according to an embodiment of the present invention; Figure 9 for Figure 8 Enlarged image in the image; Figure 10 for Figure 8 Sectional view AA in the diagram.

[0027] Reference numerals: 1. Base frame; 11. Base frame side beam; 12. Base frame floor; 121. Mezzanine drainage hole; 13. Base frame longitudinal beam; 14. Base frame transverse beam; 2. Equipment mounting base; 3. Vehicle-mounted equipment; 41. Central mezzanine space; 42. Side mezzanine spaces; 421. Guide rail; 422. Pipeline; 423. Integrated cable tray; 5. Cover plate mounting bracket; 51. Inner mounting bracket; 511. L-shaped curved plate; 5111. Horizontal plate; 5112. Vertical plate; 5113. Notch; 512. Inner mounting strip; 5121. First intermediate threaded hole; 5122. First rectangular... 5123, First end threaded hole; 513, Rib plate; 52, Outer mounting bracket; 521, Second intermediate threaded hole; 522, Second rectangular recess; 523, Second end threaded hole; 53, Horizontal mounting bracket; 531, U-shaped plate; 532, Horizontal mounting strip; 533, Connecting block; 5331, Threaded hole; 54, Countersunk screw; 55, Rubber plate; 551, Rubber plate opening; 56, Elastic pad; 6, Corridor cover plate; 61, Cover plate mounting hole; 7, Cover plate mounting fastener; 81, Horizontal water trough; 82, Longitudinal water trough; 83, Drain pipe. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0031] Please refer to the attached document. Figure 1 To be continued Figure 10As shown, an embodiment of the present invention provides a pre-wiring structure for a locomotive with double-sided external corridors, including a base frame 1, two equipment mounting seats 2, a corridor cover 6, onboard equipment 3, and a mezzanine space; wherein, the base frame 1 includes two base frame side beams 11 and a base frame floor 12 located between the base frame side beams 11, the two sides of the base frame floor 12 are fixedly connected to the two base frame side beams 11, and in the vertical direction, the upper surface of the base frame side beams 11 is higher than the upper surface of the base frame floor 12; the two equipment mounting seats 2 are symmetrically arranged inside the base frame side beams 11 and fixedly connected to the base frame floor 12, and the equipment mounting seats 2 extend along the longitudinal direction of the locomotive; the corridor cover 6 is movably installed on the base frame side beams 11 and the equipment mounting seats 2. Specifically, the corridor cover plate 6 is laid longitudinally above the space between the equipment mounting base 2 and the base frame side beam 11. The vehicle-mounted equipment 3 is installed above the base frame floor 12 via the equipment mounting base 2. The mezzanine space includes a central mezzanine space 41 and two side mezzanine spaces 42. The central mezzanine space 41 is formed by the base frame floor 12, the equipment mounting base 2, and the vehicle-mounted equipment 3. The two side mezzanine spaces 42 are formed by the base frame floor 12, the base frame side beam 11, the equipment mounting base 2, and the corridor cover plate 6. The integrated cable tray 423 and the conduit bank 422 are arranged in the mezzanine space, with the integrated cable tray 423 arranged vertically above the conduit bank 422. The vertical arrangement of the integrated cable tray 423 above the conduit bank 422 effectively avoids water ingress into the cables within the integrated cable tray 423.

[0032] In this embodiment, the double-sided outer corridor locomotive pre-wiring structure includes a base frame 1, equipment mounting seats 2, corridor cover plates 6, on-board equipment 3, and a mezzanine space. The base frame 1 includes two base frame side beams 11 and a base frame floor 12 located between the side beams 11, with the upper surface of the side beams 11 higher than the upper surface of the floor 12. The equipment mounting seats 2 are symmetrically arranged inside the side beams 11 and fixedly connected to the floor 12, with the upper surface of the equipment mounting seats 2 higher than the upper surface of the side beams 11. The corridor cover plate 6 is movably installed between the side beams 11 and the equipment mounting seats 2. The on-board equipment 3 is mounted above the floor 12 via the equipment mounting seats 2. The arrangement of the upper surface of the side beams 11 being higher than the upper surface of the floor 12 allows the side beams to... 11. A mezzanine space is formed between the corridor cover plate 6, the equipment mounting base 2, the vehicle-mounted equipment 3, and the base frame floor 12. Specifically, the mezzanine space includes a central mezzanine space 41 and two side mezzanine spaces 42. The central mezzanine space 41 is formed by the base frame floor 12, the equipment mounting base 2, and the vehicle-mounted equipment 3. The central mezzanine space 41 is used to arrange the central integrated cable tray 423 / pipeline 422. The two side mezzanine spaces 42 are formed by the base frame floor 12, the base frame side beam 11, the equipment mounting base 2, and the corridor cover plate 6. The two side mezzanine spaces 42 are used to arrange the two side integrated cable trays 423 / pipelines 422. The integrated cable tray 423 and the pipeline 422 are arranged in the mezzanine space, and the integrated cable tray 423 is arranged vertically above the pipeline 422. The pre-wiring structure provides a central mezzanine space 41 and two side mezzanine spaces 42, which allows the overall cable tray 423 to complete the wiring and binding of cables inside the cable tray and the pipeline laying and clamping process under the vehicle. Then, the overall cable tray 423 and the pipeline 422 are set in the mezzanine space, realizing the forward movement of the wiring process, thereby improving manufacturing efficiency and reducing wiring difficulty.

[0033] It should be noted that the installation and connection structures of the integral cable trays 423 and pipe rows 422 inside the central mezzanine space 41 and the two side mezzanine spaces 42 are similar. For the sake of simplicity, only the structure of the two side mezzanine spaces 42 will be described in detail below. The structure of the central mezzanine space 41 can be referred to the design of the two side mezzanine spaces 42, and will not be repeated here.

[0034] Please refer to the appendix again. Figure 2 As shown, in some optional embodiments, the internal space of the two side mezzanine 42 includes at least components such as guide rails 421, pipe arrays 422, and integrated cable trays 423. Specifically, guide rails 421 are provided on the base floor 12 and below the corridor cover plate 6. Pipe arrays 422 are connected to guide rails 421 through pipe array fasteners and are installed on the base floor 12. Further, the bottom surface of the integrated cable tray 423 has cable tray mounting holes, which on the one hand realize the connection between the integrated cable tray 423 and the pipe array 422, and on the other hand can drain water that accidentally enters the integrated cable tray 423 to the bottom to prevent the cables from being soaked in water.

[0035] In some alternative embodiments, the cross-section of the underframe side beam 11 is a "U"-shaped structure, and its height is greater than its width.

[0036] In some optional embodiments, the underframe 1 further includes underframe longitudinal beams 13 and underframe transverse beams 14; the underframe longitudinal beams 13 are disposed at the bottom of the underframe floor 12, located at a position corresponding to the equipment mounting seat 2; the underframe transverse beams 14 are disposed at the bottom of the underframe floor 12, and located between two underframe side beams 11, with both ends of the underframe transverse beams 14 fixedly connected to the side walls of the two underframe side beams 11, forming a frame structure. Multiple underframe transverse beams 14 are arranged longitudinally on the locomotive, and the underframe longitudinal beams 13 are arranged inside the two underframe side beams 11. The vertical load of the onboard equipment 3 is directly transmitted downwards to the car body underframe 1 through the equipment mounting seat 2 and the underframe longitudinal beams 13, thereby reducing bending moment and improving the load-bearing capacity of the car body underframe 1.

[0037] Specifically, the longitudinal beam 13 and the transverse beam 14 of the base frame intersect perpendicularly, and their upper surfaces are flush. The lower surface of the longitudinal beam 13 is lower than the lower surface of the transverse beam 14. Furthermore, the longitudinal beam 13 is connected at the intersection of the transverse beam 14 and the longitudinal beam 13 by a notch in the transverse beam.

[0038] To further explain, the base frame floor 12 is a flat plate that is sandwiched between the base frame longitudinal beam 13 and the equipment mounting base 2 in the vertical direction, and located between the two base frame side beams 11 in the horizontal direction. The upper surface of the base frame floor 12 is fixedly connected to the equipment mounting base 2, the lower surface of the base frame floor 12 is fixedly connected to the base frame longitudinal beam 13 and the base frame cross beam 14, and the side of the base frame floor 12 is fixedly connected to the base frame side beam 11.

[0039] As some alternative embodiments, in the vertical direction, the lower surface of the base frame side beam 11 is lower than the lower surface of the base frame cross beam 14 and the base frame longitudinal beam 13. This design makes full use of the height advantage of the base frame side beam 11 in the vertical direction, thereby enhancing the overall rigidity of the base frame 1.

[0040] In some optional embodiments, a plurality of interlayer drainage holes 121 are provided on the underframe floor 12, below the corridor cover plate 6, along the longitudinal direction of the locomotive. The plurality of interlayer drainage holes 121 are used to drain condensate and accidental water ingress in the interlayer space. Optionally, the plurality of interlayer drainage holes 121 are arranged in a wavy shape along the longitudinal direction of the locomotive, so that condensate and accidental water ingress in the interlayer spaces 42 on both sides can be drained smoothly without being limited by the flatness of the underframe floor 12.

[0041] It should be further explained that multiple corridor cover plates 6 are installed on both sides of the outer corridor, which can realize the ease of installation, maintenance, and replacement of the outer corridor floor. In order to accommodate the installation of multiple corridor cover plates 6, each corridor cover plate 6 is installed between the base frame side beam 11 and the equipment mounting base 2 through a longitudinal and transversely mating cover plate mounting bracket 5.

[0042] Please refer to the appendix again. Figure 3 As shown, the cover plate mounting bracket 5 includes an inner mounting bracket 51, an outer mounting bracket 52, and a transverse mounting bracket 53. The inner mounting bracket 51 and the outer mounting bracket 52 are arranged in parallel and are fixed. The inner mounting bracket 51 is set on the side wall of the equipment mounting base 2, and the outer mounting bracket 52 is set on the upper surface of the base frame side beam 11. The transverse mounting bracket 53 is movable and can be detachably installed between the inner mounting bracket 51 and the outer mounting bracket 52 to connect two adjacent corridor cover plates 6.

[0043] In some optional embodiments, a longitudinal water trough 82 is provided between the inner mounting bracket 51 and the side wall of the equipment mounting base 2. Furthermore, multiple drain pipes 83 are arranged along the length of the longitudinal water trough 82, completely penetrating the interlayer space under the corridor, forming an efficient drainage system to quickly discharge water accumulated in the longitudinal water trough 82 to the underside of the locomotive. This design effectively prevents moisture accumulation in the corridor area, improving the safety and reliability of the locomotive during operation.

[0044] Please refer to the appendix again. Figure 4 and attached Figure 5 As shown, in some optional embodiments, the inner mounting bracket 51 includes an L-shaped bent plate 511, a notch 5113, and a stiffener 513; the L-shaped bent plate 511 includes a horizontal plate 5111 and a vertical plate 5112, the length of the horizontal plate 5111 being greater than the length of the vertical plate 5112, and the vertical plate 5112 being fixed at the center position along the length direction of the horizontal plate 5111; an inner mounting strip 512 is provided on the side of the vertical plate 5112 facing the side wall of the equipment mounting base 2, specifically, the inner mounting strip 512 is fixedly arranged on the side of the vertical plate 5112 facing the side wall of the equipment mounting base 2. One side of the side wall of the equipment mounting base 2; the inner mounting strip 512 has the same length as the vertical plate 5112, and the width of the inner mounting strip 512 is less than the width of the horizontal plate 5111; a longitudinal water trough 82 is formed between the inner mounting strip 512 and the side wall of the equipment mounting base 2; a notch 5113 is provided on the horizontal plate 5111, and its opening faces the side wall of the equipment mounting base 2 for the passage of the drain pipe 83; the notch 5113 can be, but is not limited to, rectangular; stiffening ribs 513 are provided at the bottom of the horizontal plate 5111, avoiding the position of the notch 5113. There are multiple stiffening ribs 513, which are evenly spaced at the bottom of the horizontal plate 5111.

[0045] Furthermore, the inner mounting strip 512 is provided with multiple threaded holes along its length, including multiple first intermediate threaded holes 5121 and first end threaded holes 5123. Both ends of the inner mounting strip 512 are provided with first rectangular recesses 5122 along its length, and the first end threaded holes 5123 are located on the first rectangular recesses 5122 at both ends respectively.

[0046] The outer mounting bracket 52 is fixed to the upper surface of the base frame side beam 11, and has the same length, width, and thickness as the inner mounting strip 512, and their structures are similar. Please refer to the appendix again. Figure 6 As shown, the difference is that the cross-section of the second rectangular recess 522 at both ends of the outer mounting bracket 52 is "L" shaped, that is, it does not completely cover the width of the outer mounting bracket 52, so as to achieve the complete waterproof function of the outer mounting bracket 52 in the longitudinal direction.

[0047] In some alternative embodiments, a transverse water trough 81 is provided on the transverse mounting bracket 53, so that after the adjacent corridor cover plates 6 are spliced, the transverse water trough 81 is located between the adjacent corridor cover plates 6, which helps the water accumulated on the corridor cover plates 6 to flow away quickly.

[0048] Please refer to the appendix again. Figure 7 As shown, in some optional embodiments, the lateral mounting bracket 53 includes a U-shaped plate 531, two lateral mounting strips 532 and four connecting blocks 533; the two lateral mounting strips 532 are symmetrically arranged on the inner side of the two folded edges of the U-shaped plate 531, and the lateral water trough 81 is formed between the two lateral mounting strips 532; the four connecting blocks 533 are symmetrically arranged at the four outer corners of the two folded edges of the U-shaped plate 531.

[0049] In the longitudinal direction of the locomotive, the inner mounting brackets 51 of adjacent corridor cover plates 6 are fixedly connected without longitudinal gaps. Specifically, the ends of adjacent transverse plates 5111 are fixedly connected without gaps, thus forming a continuous new plane, and one end of the U-shaped plate 531 is mounted above this new plane. At the same time, the outer mounting brackets 52 of adjacent corridor cover plates 6 are aligned, but there is a longitudinal gap between them. The other end of the U-shaped plate 531 is mounted on this gap. The four connecting blocks 533 on each transverse mounting bracket 53 are respectively mounted on the first rectangular recess 5122 of the inner mounting bracket 51 and the second rectangular recess 522 of the outer mounting bracket 52, and are detachably connected by countersunk screws 54.

[0050] Specifically, each of the four connecting blocks 533 is provided with a threaded hole 5331. The countersunk screw 54 passes through the threaded hole 5331 of the connecting block 533 and the first end threaded hole 5123 of the inner mounting strip 512, respectively, to achieve a detachable connection between one end of the U-shaped plate 531 and the inner mounting strip 512; the countersunk screw 54 passes through the threaded hole 5331 of the connecting block 533 and the second end threaded hole 523 on the outer mounting bracket 52, respectively, to achieve a detachable connection between the other end of the U-shaped plate 531 and the outer mounting bracket 52.

[0051] In some optional embodiments, the top surfaces of the inner mounting bracket 51, the outer mounting bracket 52, and the transverse mounting bracket 53 are located on the same plane. A rubber component is provided between the periphery of the lower surface of the corridor cover 6 and the inner mounting bracket 51, the outer mounting bracket 52, and the transverse mounting bracket 53. This design not only achieves an effective seal between the corridor cover 6 and the cover mounting structure but also provides vertical installation adjustment space. The rubber component can be, but is not limited to, a U-shaped rubber plate 55, on which a rubber plate opening 551 is provided.

[0052] In some optional embodiments, the lower surface of the U-shaped plate 531 is provided with an elastic pad 56 at the overlapping position with the base frame side beam 11 and the inner mounting bracket 51, and is sealed by applying glue, which effectively prevents rainwater from flowing into the interior of the interlayer space 42 through the gap between the adjacent outer mounting brackets 52 and the gap between the inner mounting bracket 51 and the U-shaped plate 531.

[0053] It should be further explained that the corridor cover 6 is box-shaped with an open bottom, and multiple cover mounting holes 61 are arranged on the upper part according to the installation points. The corridor cover 6 is bent downwards on all four sides, while the two sides of the U-shaped plate 531 are bent upwards, and one side of the L-shaped curved plate 511 is also bent upwards, so that the corridor cover 6 and the cover mounting bracket 5 can be interlocked, and the corridor cover 6 is located above the cover mounting bracket 5. During the installation process, the cover mounting fasteners 7 pass through the cover mounting holes 61, the rubber plate opening 551 and the first intermediate threaded hole 5121 of the inner mounting strip 512, and the cover mounting fasteners 7 pass through the cover mounting holes 61, the rubber plate opening 551 and the second intermediate threaded hole 521 of the outer mounting bracket 52, thereby achieving a stable installation of the corridor cover 6.

[0054] In some optional embodiments, the upper surface of the equipment mounting base 2 is higher than the upper surface of the underframe side beam 11, and the upper surface of the cover plate mounting bracket 5 is set to tilt outwards from the locomotive by 1° to 3°. This allows the corridor cover plate 6 to tilt outwards from the locomotive after installation, facilitating the rapid drainage of water accumulated on the corridor cover plate 6 and the transverse water trough 81 to the outside of the vehicle, thus improving the drainage function of the double-sided outer corridor. It should be noted that the tilt angle of the corridor cover plate 6 outwards from the vehicle should not be too large to ensure that the personnel walking and standing do not feel a significant tilt.

[0055] The drainage principle of the double-sided outer corridor locomotive pre-wiring structure provided in this embodiment of the invention is as follows: the double-sided outer corridor achieves effective drainage through a transverse water trough 81, a longitudinal water trough 82, a drain pipe 83, and a corridor cover plate 6. Specifically, the longitudinal water trough 82 is located on the side of the equipment mounting base 2, while the transverse water trough 81 is located between adjacent corridor cover plates 6. When accumulated water flows towards the outside of the locomotive, the accumulated water is guided to the outside of the car body through the upper surface of the corridor cover plate 6 and the transverse water trough 81. In addition, accumulated water flowing in other directions is ultimately guided to the area under the car where there is no equipment through the passage formed by the longitudinal water trough 82 and the drain pipe 83.

[0056] Furthermore, one embodiment of the present invention also provides a method for pre-wiring locomotives in a double-sided outer corridor, comprising the following steps: S1. Installation of the entire cable tray and pipe array; S2, Horizontal mounting bracket and elastic pad installation; S3. Installation of rubber components; S4. Corridor cover installation.

[0057] It is important to note that there is a specific order to the steps described above, and they must be performed in that order. The removal sequence is the reverse of the installation sequence, proceeding by disassembling the corridor cover, rubber components, horizontal mounting brackets, and elastic pads in that order.

[0058] It should be further noted that one embodiment of the present invention also provides a vehicle body structure, including the double-sided outer corridor locomotive pre-wiring structure of any of the above embodiments. Since the vehicle body structure includes the double-sided outer corridor locomotive pre-wiring structure of the above embodiments, it possesses the technical effects of the double-sided outer corridor locomotive pre-wiring structure of the above embodiments, and will not be elaborated further here.

[0059] The locomotive pre-wiring structure, method, and car body structure provided by this invention have the following advantages: (1) Improved manufacturing efficiency: By moving the wiring, bundling, and pipeline laying processes in the cable trays in the center and on both sides of the double-sided outer corridor locomotive to the front, the wiring can be produced synchronously with other locomotive structures. This improvement can increase manufacturing efficiency, reduce wiring difficulty, and shorten the overall construction period.

[0060] (2) Optimized underframe structure: The underframe structure (including the underframe floor and underframe side beams) of the double-sided outer corridor locomotive forms a natural groove with the equipment mounting base. Combined with the onboard equipment and corridor cover, it forms a central mezzanine space for arranging the central cable tray / pipeline, and two side mezzanine spaces for arranging the side cable trays / pipelines. The central cable tray / pipeline is arranged above the underframe floor, eliminating the need for opening holes in the underframe longitudinal beams and underframe transverse beams, ensuring the underframe load-bearing capacity and structural simplicity. Compared with the traditional car body underframe structure, the height dimension of the underframe side beams is significantly increased, improving the underframe rigidity, and the structure is simple and highly versatile.

[0061] (3) Convenient disassembly and installation: The present invention provides a smooth hoisting and disassembly path for the overall cable tray under the outer corridor, so that the installation process of the overall cable tray / pipe and corridor cover plate can be carried out in an orderly manner, avoiding the problem of mutual interference.

[0062] (4) Good drainage function: water accumulated in the upper part of the outer corridor is drained to the outside or under the vehicle along the drainage path, and the corridor cover installation structure is sealed to prevent water from entering; water that accidentally enters the mezzanine space under the outer corridor can be smoothly drained to the under the vehicle, avoiding water accumulation from corroding cables and pipes.

[0063] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A locomotive pre-wiring structure with double-sided outer corridors, characterized in that, comprising: a underframe, comprising two underframe side beams and an underframe floor located between the underframe side beams, wherein the upper surface of the underframe side beam is higher than the upper surface of the underframe floor; two equipment mounting seats, symmetrically arranged on the inner side of the underframe side beams, and fixedly connected with the underframe floor; a corridor cover plate, movably mounted between the underframe side beam and the equipment mounting seat; vehicle-mounted equipment, mounted above the underframe floor via the equipment mounting seats; interlayer spaces, comprising a central interlayer space and two side interlayer spaces, wherein the central interlayer space is enclosed and formed by the underframe floor, the equipment mounting seats and the vehicle-mounted equipment, and the two side interlayer spaces are enclosed and formed by the underframe floor, the underframe side beams, the equipment mounting seats and the corridor cover plate; an integral wire chase and pipe banks are arranged in the interlayer spaces, and the integral wire chase is vertically arranged above the pipe banks; the corridor cover plate is mounted between the underframe side beam and the equipment mounting seat via a cover plate mounting bracket; the cover plate mounting bracket comprises: an inner mounting bracket, arranged on the side wall of the equipment mounting seat; an outer mounting bracket, arranged on the upper surface of the underframe side beam; a transverse mounting bracket, detachably mounted between the inner mounting bracket and the outer mounting bracket, configured to connect two adjacent corridor cover plates; a longitudinal water tank is arranged between the inner mounting bracket and the side wall of the equipment mounting seat; the inner mounting bracket comprises: an L-shaped bent plate, comprising a transverse plate and a vertical plate, wherein an inner mounting strip is arranged on the side of the vertical plate facing the side wall of the equipment mounting seat, the length of the inner mounting strip is consistent with the length of the vertical plate, and the width of the inner mounting strip is smaller than the width of the transverse plate; the longitudinal water tank is formed between the inner mounting strip and the side wall of the equipment mounting seat; a notch, arranged on the transverse plate, with an opening facing the side wall of the equipment mounting seat, configured for a drain pipe to pass through; a rib plate, arranged at the bottom of the transverse plate and avoiding the position of the notch.

2. The double-sided outer corridor locomotive pre-wiring structure according to claim 1, characterized in that, the cross section of the underframe side beam is a rectangular frame structure, and the height thereof is greater than the width thereof.

3. The double-sided outer corridor locomotive pre-wiring structure according to claim 1, characterized in that, the underframe further comprises: underframe longitudinal beams, arranged at the bottom of the underframe floor at positions corresponding to the equipment mounting seats; an underframe cross beam, arranged at the bottom of the underframe floor and located between the two underframe side beams.

4. The double-sided outer corridor locomotive pre-wiring structure according to claim 3, characterized in that, the lower surface of the underframe side beam is lower than the lower surfaces of the underframe cross beam and the underframe longitudinal beam.

5. The double-sided outer corridor locomotive pre-wiring structure according to claim 1, characterized in that, a plurality of interlayer drain holes are arranged on the underframe floor below the corridor cover plate along the longitudinal direction of the vehicle.

6. The double-sided outer corridor locomotive pre-wiring structure according to claim 5, characterized in that, the plurality of interlayer drain holes are arranged in a wave shape along the longitudinal direction of the vehicle.

7. The double-sided outer corridor locomotive pre-wiring structure according to claim 1, characterized in that, a transverse water tank is arranged on the transverse mounting bracket.

8. The double-sided outer corridor locomotive pre-wiring structure according to claim 7, characterized in that, the transverse mounting bracket comprises: a U-shaped plate; two transverse mounting strips, symmetrically arranged on the inner sides of the folded edges on both sides of the U-shaped plate, and the transverse water tank is formed between the two transverse mounting strips; four connecting blocks, symmetrically arranged at the outer four corners of the folded edges on both sides of the U-shaped plate.

9. The double-sided outer corridor locomotive pre-wiring structure according to claim 8, characterized in that, rubber parts are arranged between the peripheral edge of the lower surface of the corridor cover plate and the inner mounting bracket, the outer mounting bracket and the transverse mounting bracket; and / or, an elastic pad is arranged on the lower surface of the U-shaped plate at the overlapping position with the underframe side beam and the inner mounting bracket.

10. The double-sided outer corridor locomotive pre-wiring structure according to claim 1, characterized in that, The upper surface of the equipment mounting base is higher than the upper surface of the underframe side beam, and the upper surface of the cover plate mounting bracket is set to be inclined outward from the locomotive by 1° to 3°.

11. A vehicle body structure, characterized in that, Includes the double-sided outer corridor locomotive pre-wiring structure as described in any one of claims 1-10.

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