A combined under-vehicle equipment system and a rail vehicle

Abstract

The present invention discloses an integrated under - vehicle equipment system and a rail vehicle. Among them, the integrated under - vehicle equipment system is installed on the car body system of the rail vehicle. The car body system includes a chassis, and the car body system has an outer contour surface of the car body. The integrated under - vehicle equipment system includes: a functional device, which includes an equipment shell and functional components. The functional components are installed inside the equipment shell. The equipment shell is used to be connected to the chassis. The equipment shell has a first outer contour surface, and the equipment shell includes a first inspection door; a bridging cover, which is located on one or both longitudinal sides of the functional device, and the bridging cover is connected to the equipment shell. The bridging cover has a second outer contour surface. The first outer contour surface, the second outer contour surface and the outer contour surface of the car body form the outer contour of the rail vehicle. The above - mentioned integrated under - vehicle equipment system has a lower redundancy, a lighter weight, a higher space utilization rate, and is convenient for maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and particularly relates to an integrated under-vehicle equipment system and a rail vehicle. Background Art

[0002] Rail vehicles include a car body system and an under-vehicle equipment system. Among them, the car body system includes a chassis, carriages, etc., and is used to form the upper structure of the rail vehicle.

[0003] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a specific implementation manner of the under-vehicle equipment system of a rail vehicle in the related art.

[0004] As Figure 1 shown, in the related art, the under-vehicle equipment system 01 includes functional equipment 011 and an equipment cabin 012. The functional equipment 011 refers to various auxiliary equipment installed below the chassis 02, such as an inverter, an air-conditioning unit, etc. These functional equipment 011 are all equipped with an equipment shell 011a, and the equipment shell 011a is fixedly installed on the chassis 02 to realize the installation and fixation of each functional equipment 011 in the car body system. The equipment cabin 012 is also fixedly installed on the chassis 02 and can cover each functional equipment 011, so as to protect each functional equipment 011. The outer wall surface of the equipment cabin 012 has a conforming design, which can improve the smoothness of the under-vehicle contour of the rail vehicle, and thus can reduce air resistance.

[0005] The equipment cabin 012 is provided with a cabin door 012a, and the equipment shell 011a is also provided with a box door 011b. When maintenance operations need to be performed on the functional equipment 011, the staff can open the cabin door 012a and the box door 011b in sequence, and then perform maintenance operations on the corresponding functional equipment 011. In this way, the maintenance operation efficiency of the under-vehicle equipment system 01 is actually relatively low.

[0006] Moreover, considering various factors such as the opening and closing property of the box door 011b, there must be a certain amount of space waste between the equipment cabin 012 and the functional equipment 011, which results in a relatively low utilization rate of the under-vehicle space.

[0007] Therefore, how to provide a solution to overcome or alleviate the above defects is still a technical problem that those skilled in the art need to solve urgently. Summary of the Invention

[0008] The purpose of the present invention is to provide an integrated under-vehicle equipment system and a rail vehicle. Among them, the integrated under-vehicle equipment system has a lower redundancy, a lighter weight, a higher space utilization rate, and is convenient for maintenance.

[0009] To solve the above technical problems, the present invention provides a combined under-vehicle equipment system installed on the car body system of a rail vehicle. The car body system includes a chassis, and the car body system has an outer contour surface of the car body; the combined under-vehicle equipment system includes: a functional device, including a device shell and functional components, the functional components are installed inside the device shell, the device shell is used to be connected to the chassis, the device shell has a first outer contour surface, and the device shell includes a first inspection door; a bridging cover located on one or both longitudinal sides of the functional device, and the bridging cover is connected to the device shell, the bridging cover has a second outer contour surface, and the first outer contour surface, the second outer contour surface and the outer contour surface of the car body combine to form the outer contour of the rail vehicle.

[0010] The combined under-vehicle equipment system provided by the present invention can integrate the functional device and the equipment compartment in the related art. By performing conformal design on the device shell of the functional device, the device shell of the functional device can have a first outer contour surface, and a bridging cover can be arranged on one or both longitudinal sides of the functional device to cover the area under the vehicle where no functional device is provided. The outer wall surface of the bridging cover can also be subjected to conformal design so that the bridging cover has a second outer contour surface, and the first outer contour surface and the second outer contour surface can jointly combine with the outer contour surface of the car body to form the outer contour of the rail vehicle.

[0011] With such an arrangement, the equipment compartment in the related art can be omitted, the number of components can be reduced, the redundancy of the under-vehicle equipment system can be reduced, the available space under the vehicle can be expanded, and the installation and arrangement of the functional components can be facilitated; at the same time, it is also beneficial to reduce the weight of the rail vehicle to meet the design requirements of the overall vehicle lightweight.

[0012] When maintenance operations need to be carried out, the staff only need to open this layer of the device shell, and then they can perform maintenance on the relevant functional components, and the maintenance efficiency can be improved. Moreover, since there is only this layer of the device shell, the staff do not need to go too deep into the interior of the under-vehicle equipment system to contact the relevant functional components, the maintenance space is expanded, and the convenience of maintenance can also be improved.

[0013] Optionally, the first inspection door is of an upward-folding structure or a downward-folding structure.

[0014] Optionally, the first inspection door is located on the lateral side of the device shell, and the first inspection door is rotatably arranged.

[0015] Optionally, the device shell includes a skeleton and a first bottom plate, the skeleton includes two transverse side frames arranged opposite to each other in the transverse direction, the first bottom plate is connected to the two transverse side frames, and the first bottom plate and the transverse side frames enclose an inspection opening, and the first inspection door can block the inspection opening.

[0016] Optionally, it further includes a first sealing member disposed around the inspection opening, and the first sealing member is installed on the first inspection door.

[0017] Optionally, the framework further includes a top frame and two longitudinal side frames oppositely disposed in the longitudinal direction. Both the two transverse side frames and the two longitudinal side frames are connected to the top frame, and both the two transverse side frames and the two longitudinal side frames are connected to the first bottom plate.

[0018] Optionally, the equipment housing includes a first bottom plate, and the first inspection door is disposed on the first bottom plate.

[0019] Optionally, the first bottom plate is provided with an inspection opening, the first bottom plate is configured with a sliding guiding portion and a sunk groove, the first inspection door is configured with a sliding member, and the sliding member can slide along the sliding guiding portion to adjust the relative position between the first inspection door and the first bottom plate; when the sliding member slides into the sunk groove, the first inspection door seals the inspection opening.

[0020] Optionally, the chassis includes a connecting member and two chassis side beams oppositely disposed in the transverse direction, and the connecting member connects the two chassis side beams; the functional equipment is configured with a plurality of connecting seats, and at least part of the connecting seats among the connecting seats are used to connect with the connecting member.

[0021] Optionally, the first inspection door is configured with a first locking member, and the equipment housing is further configured with a first locking and engaging member. The cooperation between the first locking member and the first locking and engaging member can lock or unlock the first inspection door.

[0022] Optionally, the first locking and engaging member is a locking and engaging hole disposed on the equipment housing.

[0023] Optionally, the chassis includes a connecting member and two chassis side beams oppositely disposed in the transverse direction, and the connecting member connects the two chassis side beams; in the closed state, the first inspection door can be in contact with the chassis side beam.

[0024] Optionally, the first inspection door is configured with a second sealing member, and the first inspection door is in contact with the chassis side beam through the second sealing member.

[0025] Optionally, the first inspection door is configured with a first ventilation opening, and the first ventilation opening is further configured with a first filtering member.

[0026] Optionally, a first chamber can be formed between the device shell and the base frame, the device shell having an inner cavity and a transition cavity, the functional device is installed in the inner cavity, a first opening is provided at the top of the device shell, the first opening is used to connect the transition cavity and the first chamber, the inner cavity and the transition cavity are separated by a partition, the partition is provided with a second vent, and the second vent is also configured with a second filter component, the first vent and the transition cavity are connected.

[0027] Optionally, a second chamber is formed in the bridging cover, and a second opening is further provided on the longitudinal side of the device shell, wherein the second opening is used to connect the transition chamber and the second chamber, and the second chamber is connected to the first chamber.

[0028] Optionally, there are multiple functional devices, each of which is arranged at intervals in the longitudinal direction, and the bridging cover is arranged between two adjacent functional devices.

[0029] Optionally, the bridging cover includes a bottom member and two side members, and the two side members are spaced apart in the transverse direction; at least one of the side member and the bottom member is connected to the device shell.

[0030] Optionally, a longitudinal side portion of the device shell is provided with a mounting interface extending in a transverse direction, and the bottom member is assembled to the device shell via the mounting interface.

[0031] Optionally, the bottom member includes a slide rail and a second bottom plate, the slide rail is fixedly mounted on a longitudinal side of the device shell, and the second bottom plate is slidably assembled on the slide rail.

[0032] Optionally, the second bottom plate includes a plurality of sub-plates arranged in a transverse direction, a third sealing component is provided between two adjacent sub-plates, and the two adjacent sub-plates are in contact with each other through the third sealing component.

[0033] Optionally, the bottom member further includes a lower side beam, the lower side beam is located on a lateral side of the slide rail, and the lower side beam is connected to the slide rail.

[0034] Optionally, an adapter plate is further included, wherein the adapter plate includes a first plate portion and a second plate portion, the first plate portion and the second plate portion are arranged at an angle, the first plate portion is connected to the slide rail, and the second plate portion is connected to the lower side beam.

[0035] Optionally, the lower side beam and the second plate portion are connected via connecting bolts, and the lower side beam is further provided with a rotation-stopping component, which can limit the rotation of the connecting bolts.

[0036] Optionally, a fourth sealing member is further included, and the fourth sealing member is used for sealing the gap between the lower side beam and the second bottom plate.

[0037] Optionally, a second locking member is further included, and the second locking member can lock the second bottom plate to the lower side beam.

[0038] Optionally, the second locking member includes a lock pin and a lock cylinder seat. The lock cylinder seat is fixedly installed on the second bottom plate. The lock pin is installed in the lock cylinder seat and can be displaced relative to the lock cylinder seat; and / or, the second locking member includes a locking bolt, a lock block and a locking rope. A lock hole extending radially along the head of the locking bolt is provided. The lock block is fixedly arranged. The locking rope can be inserted through the lock hole, and the locking rope can be connected to the lock block.

[0039] Optionally, a pressing member is further included, and the pressing member is used for pressing the second bottom plate vertically.

[0040] Optionally, the pressing member includes a pressing wheel. The pressing wheel is installed on the slide rail. A convex portion is provided on the second bottom plate. The pressing wheel is used for abutting against the convex portion vertically.

[0041] Optionally, the side member is rotatably assembled to the bottom member; or, the side member is rotatably assembled to the underframe.

[0042] Optionally, a fifth sealing member is further included, and the fifth sealing member is used for sealing between the side member and the bottom member, between the side member and the equipment shell, and between the side member and the underframe.

[0043] Optionally, the side member is configured with a second locking member, and the underframe is configured with a second locking component. The second locking member and the second locking component cooperate to lock or unlock the side member.

[0044] Optionally, the bottom member is configured with a second inspection door.

[0045] The present invention also provides a rail vehicle, including a car body system and an undercarriage equipment system, and the undercarriage equipment system is the above-mentioned integrated undercarriage equipment system.

[0046] Since the above-mentioned integrated undercarriage equipment system already has the above technical effects, then, the rail vehicle having this integrated undercarriage equipment system should also have similar technical effects, so it will not be elaborated here. Description of the Drawings

[0047] Figure 1Schematic diagram of a specific implementation of the under - vehicle equipment system of a rail vehicle in the related art;

[0048] Figure 2 Simplified cross - sectional view of the lateral direction of the rail vehicle provided by the present invention;

[0049] Figure 3 Partial structure diagram of the integrated under - vehicle equipment system provided by the present invention;

[0050] Figure 4 Connection structure diagram of the framework, the first bottom plate and the first inspection door;

[0051] Figure 5 For Figure 4 Schematic diagram of the structure of the middle framework;

[0052] Figure 6 For Figure 5 Partial enlarged view of area A in;

[0053] Figure 7 For Figure 4 Schematic diagram of the structure of the first bottom plate in;

[0054] Figure 8 For Figure 7 Cross - sectional view in the B - B direction;

[0055] Figure 9 For Figure 7 Cross - sectional view in the C - C direction;

[0056] Figure 10 For Figure 4 Schematic diagram of the structure of the first inspection door in;

[0057] Figure 11 Schematic diagram of the structure of the first bottom plate integrated with the first inspection door;

[0058] Figure 12 For Figure 11 Schematic diagram of the structure of the first inspection door in;

[0059] Figure 13 For Figure 11 Schematic diagram of the structure of the sliding guiding part in;

[0060] Figure 14 Relative position diagram of the under - vehicle equipment system and the car body underframe;

[0061] Figure 15 For Figure 14 Partial enlarged view of area D in;

[0062] Figure 16 For Figure 15 Schematic diagram of the structure of the deformation scheme of;

[0063] Figure 17 Structural schematic diagram of an air intake scheme for a functional device;

[0064] Figure 18 Structural schematic diagram of another air intake scheme for a functional device;

[0065] Figure 19 Structural schematic diagram of a specific implementation manner of a bridging cover;

[0066] Figure 20 For Figure 19 Connection structure diagram of the bottom member and the first bottom plate in;

[0067] Figure 21 For Figure 20 Structural schematic diagram of a deformation scheme of;

[0068] Figure 22 For Figure 19 Transverse sectional view of;

[0069] Figure 23 For Figure 22 Partial enlarged view of area E in;

[0070] Figure 24 For Figure 22 Partial enlarged view of area F in;

[0071] Figure 25 Connection structure diagram of the slide rail and the lower side beam;

[0072] Figure 26 Connection structure diagram of the adapter plate and the anti-rotation member;

[0073] Figure 27 Structural schematic diagram of a specific implementation manner of the second locking member;

[0074] Figure 28 For Figure 27 Structural schematic diagram of the second locking member connecting the second bottom plate and the lower side beam in;

[0075] Figure 29 Structural schematic diagram of another specific implementation manner of the second locking member;

[0076] Figure 30 For Figure 29 Structural schematic diagram of the second locking member connecting the second bottom plate and the lower side beam in.

[0077] Figure 1 The reference numeral descriptions in are as follows:

[0078] 01 Under-vehicle equipment system, 011 Functional device, 011a Equipment shell, 011b Box door, 012 Equipment compartment, 012a Compartment door, 02 Underframe.

[0079] Figures 2 - 30 The reference numerals in the drawings are explained as follows:

[0080] 1 vehicle body system, 1a outer contour surface of the vehicle body, 11 underframe, 111 connecting member, 112 side beam of the underframe;

[0081] 2 under-vehicle equipment system, 2a outer contour surface under the vehicle, 2a-1 first outer contour surface, 2a-2 second outer contour surface, 21 functional equipment, 211 equipment housing, 211-1 transition cavity, 211a first inspection door, 211a-1 first sealing member, 211a-2 first locking member, 211a-3 second sealing member, 211a-4 first ventilation opening, 211a-5 second hinge cylinder, 211a-6 sliding member, 211b frame, 211b-1 transverse side frame, 211b-1a upper side beam, 211b-1b transition side beam, 211b-1c locking hole, 211b-2 top frame, 211b-3 longitudinal side frame, 211b-4 connecting seat, 211b-5 first accommodating groove, 211c first bottom plate, 211c-1 bottom wall, 211c-1a sliding guide portion, 211c-1b sliding groove, 211c-1c sinking groove, 211c-2 transverse side wall, 211c-2a second accommodating groove, 211c-2b first hinge cylinder, 211c-3 longitudinal side wall, 211c-3a mounting interface, 211d inspection opening, 211e covering plate, 211e-1 partition plate, 211e-1a second ventilation opening, 22 bridging cover, 221 bottom member, 221a slide rail, 221a-1 transverse plate portion, 221a-1a sliding engagement portion, 221a-2 vertical plate portion, 221b second bottom plate, 221b-1 dividing plate, 221b-2 third sealing member, 221b-3 protruding portion, 221c lower side beam, 221c-1 anti-rotation member, 221c-1a clamping groove, 222 side member, 222a fifth sealing member, 222b third locking member, 224 adapter plate, 224a first plate portion, 224b second plate portion, 225 connecting bolt, 226 fourth sealing member, 227 second locking member, 227a locking pin, 227a-1 pin portion, 227a-2 handle portion, 227b locking cylinder seat, 227b-1 grooved track, 227c locking bolt, 227c-1 locking hole, 227d locking block, 227e locking rope, 227f locking nut, 227g locking plate seat, 228 pressing member, 228a pressing wheel;

[0082] I first chamber, II second chamber, III outer space. Detailed implementation manners

[0083] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0084] In the embodiments of the present invention, the terms "first", "second", "third", "fourth", and "fifth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", and "fifth" may explicitly or implicitly include one or more of such features.

[0085] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, "connected" may be a detachable connection or a non-detachable connection; it may be a direct connection or an indirect connection through an intermediate medium.

[0086] The orientation terms mentioned in the embodiments of the present invention, such as "longitudinal", "transverse", "vertical", "inner", "outer", etc., are the orientation and positional relationships defined with reference to the rail vehicle. Among them, "longitudinal" refers to the running direction of the rail vehicle and also refers to the length direction of the rail vehicle; "transverse" refers to the width direction of the rail vehicle, and "transverse" is perpendicular to "longitudinal"; "vertical" refers to the height direction of the rail vehicle and also refers to the up and down direction.

[0087] In the description of the embodiments of the present invention, unless otherwise stated in the present invention, the term "a plurality of" refers to two or more. And when using "a plurality of" to represent the quantity of several components, it does not represent the mutual relationship in quantity of these components.

[0088] In the description of the embodiments of the present invention, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0089] In the embodiments of the present invention, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0090] Please refer to Figure 2 , Figure 2 which is a schematic cross-sectional view of the transverse direction of the rail vehicle provided by the present invention.

[0091] As Figure 2 shown, the present invention provides a rail vehicle, which includes a car body system 1 and an under-car equipment system 2.

[0092] The car body system 1 includes a car body frame and carriages, etc., and is used to form the upper structure of the rail vehicle. The car body system 1 has an outer contour surface 1a of the car body (the thickened lines in the drawings). The under-car equipment system 2 is located below the car body system 1 and is used to arrange the functional equipment of the rail vehicle, such as an inverter, an air-conditioning unit, an under-car water tank, a sewage tank, a battery box, etc. The under-car equipment system 2 has an outer contour surface 2a of the under-car (the thickened lines in the drawings).

[0093] The outer contour surface 1a of the car body and the outer contour surface 2a of the under-car jointly form the outer contour of the rail vehicle. In specific practice, both the outer contour surface 1a of the car body and the outer contour surface 2a of the under-car adopt a conformal design to optimize the outer contour of the rail vehicle, so as to improve the smoothness of the rail vehicle during operation, and further reduce the air resistance during the operation of the rail vehicle.

[0094] Here, the embodiments of the present invention do not limit the specific shapes of the outer contour surface 1a of the car body and the outer contour surface 2a of the under-car. In practical applications, those skilled in the art can determine them in combination with actual needs and certain simulation tests, etc. Generally speaking, on the basis of meeting requirements such as height limit and width limit, the outer contour surface 1a of the car body and the outer contour surface 2a of the under-car should be designed as streamlined as possible to greatly reduce the running resistance and wear of the rail vehicle.

[0095] As described in the background art section, in the related art, the under-car equipment system includes functional equipment and an equipment cabin. The functional equipment has an independent equipment shell, and the equipment cabin can cover and shield the functional equipment. The outer wall surface of the equipment cabin can form the outer contour surface of the under-car.

[0096] In this solution, the under-car equipment system 2 actually has two layers of shells, namely the equipment cabin and the equipment shell, which has a certain redundancy in structure. When it is necessary to repair the functional components in the functional equipment, it is necessary to open the equipment cabin and the equipment shell successively, which is not conducive to improving the repair efficiency. Moreover, considering factors such as the openability requirements of the inspection doors provided on the equipment shell, there will be space waste in both the vertical and horizontal directions of the equipment cabin and the functional equipment, resulting in a relatively low utilization rate of the under-car space.

[0097] In view of this, an embodiment of the present invention further provides an integrated under-vehicle equipment system, which can integrate functional devices and equipment compartments. By performing conformal design on the device shells of the functional devices, the device shells of the functional devices can directly participate in forming the under-vehicle outer contour surface 2a. A bridging cover can be arranged on one or both longitudinal sides of the functional device to cover the area under the vehicle where no functional device is provided, and the outer wall surface of the bridging cover can also be subjected to conformal design so that the bridging cover can also directly participate in forming the under-vehicle outer contour surface 2a.

[0098] Adopting this solution can eliminate the equipment compartment in the related art, reduce the number of components, and reduce the redundancy of the under-vehicle equipment system 2. Verified by a specific vehicle model, when the solution in the embodiment of the present invention is adopted, the reduction in the number of under-vehicle components can reach 15%, and the reduction in the number of components is very significant. Moreover, due to the reduction in the number of under-vehicle components, the available space under the vehicle is expanded, facilitating the installation and arrangement of functional devices. At the same time, it is also beneficial to reduce the weight of the rail vehicle to meet the design requirements of vehicle lightweighting.

[0099] When maintenance operations need to be carried out, the staff only need to open the device shell layer to perform maintenance on the relevant functional devices, and the maintenance efficiency can be improved. Moreover, since there is only the device shell layer, the staff do not need to go too deep into the under-vehicle equipment system to access the relevant functional devices, the maintenance operation space is expanded, and the convenience of maintenance can also be improved.

[0100] Please refer to Figures 3 - 18 , Figure 3 which is a partial structure diagram of the integrated under-vehicle equipment system provided by the present invention, Figure 4 is a connection structure diagram of the skeleton, the first bottom plate and the first inspection door, Figure 5 is Figure 4 a schematic structural diagram of the middle skeleton in Figure 6 is Figure 5 a partial enlarged view of area A in Figure 7 is Figure 4 a schematic structural diagram of the first bottom plate in Figure 8 is Figure 7 a cross-sectional view in the B-B direction in Figure 9 is Figure 7 a cross-sectional view in the C-C direction in Figure 10 is Figure 4 a schematic structural diagram of the first inspection door in Figure 11 is a schematic structural diagram of the first bottom plate integrated with the first inspection door, Figure 12 is Figure 11 a schematic structural diagram of the first inspection door in Figure 13 is Figure 11 a schematic structural diagram of the sliding guide part in Figure 14It is a relative position diagram of the under - vehicle equipment system and the underframe. Figure 15 It is Figure 14 a partial enlarged view of area D in Figure 16 It is Figure 15 a structural schematic diagram of a deformation scheme of Figure 17 a structural schematic diagram of an air intake scheme of a functional device Figure 18 a structural schematic diagram of another air intake scheme of the functional device.

[0101] As Figure 3 shown, the integrated under - vehicle equipment system provided by the present invention includes a functional device 21 and a bridging cover 22. The functional device 21 includes a device shell 211 and functional components. The functional components are installed inside the device shell 211. The type of the functional components is related to the type of the functional device 21, which is not limited herein; the device shell 211 is also used to be connected to the underframe 11 to realize the installation and fixation of the functional device 21 at the bottom of the vehicle body system 1. The bridging cover 22 is located on one or both longitudinal sides of the functional device 21 and can be connected to the functional device 21 to cover the area under the rail vehicle where the functional device 21 is not provided.

[0102] The device shell 211 has a first outer contour surface 2a - 1, and the bridging cover 22 has a second outer contour surface 2a - 2. The first outer contour surface 2a - 1 and the second outer contour surface 2a - 2 together form the under - vehicle outer contour surface 2a.

[0103] Here, the embodiment of the present invention does not limit the number of the functional devices 21. In practical applications, those skilled in the art can determine it in combination with the type of the rail vehicle, etc. Exemplarily, the number of the functional devices 21 can be one; or, the number of the functional devices 21 can also be multiple. At this time, the functional devices 21 can be arranged at intervals longitudinally, and a bridging cover 22 is configured between two adjacent functional devices 21.

[0104] In addition, the embodiment of the present invention does not limit the installation position of the functional device 21. In practical applications, those skilled in the art can determine it in combination with the related functions of the specific functional device 21, etc. Exemplarily, the functional device 21 can be located at the longitudinal end of the under - vehicle equipment system 2. At this time, the first outer contour surface 2a - 1 also participates in forming the end contour of the under - vehicle equipment system 2; or, the functional device 21 can also be arranged away from the longitudinal end. At this time, the bridging cover 22 can form the longitudinal end of the under - vehicle equipment system 2, and the second outer contour surface 2a - 2 can participate in forming the end contour of the under - vehicle equipment system 2.

[0105] A partial area of the device shell 211 can form a first inspection door 211a, and the outer wall surface of the first inspection door 211a can constitute a part of the first outer contour surface 2a - 1.

[0106] The first maintenance door 211a can have an open state and a closed state. In the open state, the functional device can be directly exposed, facilitating maintenance of the functional device inside the equipment housing 211 by the staff. In the closed state, the first maintenance door 211a can isolate the functional device from the external environment to protect the functional device.

[0107] In some embodiments, the first maintenance door 211a can be located on the lateral side of the equipment housing 211.

[0108] The first maintenance door 211a can be installed and fixed by detachable connectors such as screws. In this way, when it is necessary to switch the first maintenance door 211a to the open state, the detachable connectors can be removed to remove the first maintenance door 211a as a whole and place it on the ground or other operating platform surface; and when it is necessary to switch the first maintenance door 211a to the closed state, the first maintenance door 211a can be assembled again through the detachable connectors.

[0109] Alternatively, the first maintenance door 211a can also be rotationally arranged. In this embodiment, the first maintenance door 211a can always be located in the under-vehicle equipment system 2. When the first maintenance door 211a switches between the open state and the closed state, there is no need for overall disassembly and assembly, which is beneficial to improving the maintenance efficiency; and when it is switched to the open state, the first maintenance door 211a does not need to "land", and it can also reduce the occupied space of relevant components during maintenance operations, improving the convenience of maintenance operations.

[0110] The equipment housing 211 can include a skeleton 211b. The skeleton 211b can specifically be a frame structure composed of multiple beam bodies, which is used to meet the strength requirements of the equipment housing 211, and the aforementioned functional device can be directly installed on the skeleton 211b.

[0111] The structural form of the equipment housing 211 is diverse and specifically needs to be determined in combination with actual usage requirements. In the embodiments of the drawings, as Figure 4 and Figure 5 shown, the skeleton 211b can include two lateral frames 211b-1, a top frame 211b-2, and two longitudinal frames 211b-3. The two lateral frames 211b-1 are arranged opposite to each other in the transverse direction, the two longitudinal frames 211b-3 are arranged opposite to each other in the longitudinal direction, and the tops of the two lateral frames 211b-1 and the tops of the two longitudinal frames 211b-3 are both connected to the top frame 211b-2.

[0112] The device housing 211 may further include a first bottom plate 211c, and the first bottom plate 211c may be fixedly assembled to the lower ends of two lateral frames 211b-1 and two longitudinal frames 211b-3 to shield the lower side of the functional device 21. It should be understood that in some other embodiments, the framework 211b may also include a bottom frame, the bottom frame may be connected to two lateral frames 211b-1 and two longitudinal frames 211b-3, and the first bottom plate 211c may be installed on the bottom frame, which is also feasible. Of course, in the embodiments of the present invention, the former solution is preferably adopted, that is, the solution of omitting the bottom frame, so as to facilitate the weight reduction of the whole vehicle.

[0113] After the installation of the first bottom plate 211c is completed, the first bottom plate 211c and the lateral frame 211b-1 can enclose a maintenance opening 211d, and the staff can perform maintenance operations on the functional devices through the maintenance opening 211d. The aforementioned first maintenance door 211a can specifically block and open the maintenance opening 211d.

[0114] The dimension of the first maintenance door 211a in the longitudinal direction can be basically the same as that of the functional device 21. At this time, the maintenance opening 211d of the functional device 21 can be made relatively large, and the maintenance area can be large. Or, the first maintenance door 211a can also be distributed only in a partial area in the longitudinal direction of the functional device 21, which is also feasible.

[0115] As Figure 4 shown, the lateral frame 211b-1 may include an upper side beam 211b-1a and two transition side beams 211b-1b spaced apart in the longitudinal direction. The two ends of the transition side beam 211b-1b can be respectively connected to the upper side beam 211b-1a and the first bottom plate 211c. The maintenance opening 211d can be specifically formed by enclosing the upper side beam 211b-1a, the first bottom plate 211c, and two transition side beams 211b-1b; in Figure 4 the embodiment, the maintenance opening 211d is generally rectangular, and in some other embodiments, the maintenance opening 211d can also be trapezoidal or other structural shapes.

[0116] The first maintenance door 211a can be rotatably connected to the first bottom plate 211c. At this time, a downward-folding structure can be formed, and the first maintenance door 211a can be rotated downward to switch to the open state. This embodiment can be referred to Figure 4 . In addition, the first maintenance door 211a can also be an upward-folding structure. At this time, the first maintenance door 211a can be rotatably connected to the upper side beam 211b-1a or other positions on the upper part of the device housing 211, and the first maintenance door 211a can be rotated upward to switch to the open state. This embodiment can be referred to Figure 16 .

[0117] Combined with Figures 7 - 9 , the first bottom plate 211c may include a bottom wall 211c-1, two transverse side walls 211c-2, and two longitudinal side walls 211c-3. The two transverse side walls 211c-2 may be spaced apart in the transverse direction, and the inner wall surfaces of the two transverse side walls 211c-2 may be connected to the two transverse side frames 211b-1. The two longitudinal side walls 211c-3 may be spaced apart in the longitudinal direction, and the inner wall surfaces of the two longitudinal side walls 211c-3 may be connected to the two longitudinal side frames 211b-3.

[0118] An outer wall surface of the transverse side wall 211c-2 may be formed with a first hinge cylinder 211c-2b. Combined with Figure 10 , an inner wall surface of the first access door 211a may be formed with a second hinge cylinder 211a-5. During specific assembly, a hinge shaft may also be configured, and the hinge shaft may pass through the first hinge cylinder 211c-2b and the second hinge cylinder 211a-5, so as to realize the rotational connection between the first access door 211a and the first bottom plate 211c.

[0119] In fact, the specific implementation form of the rotational connection may be diverse, as long as it can meet the usage requirements. Exemplarily, in the first access door 211a and the first bottom plate 211c, one may be provided with an arc plate, and the other may be provided with a hinge shaft. Through the cooperation of the hinge shaft and the arc plate, the rotational setting of the first access door 211a can also be realized; or, a hinge structure or the like may also be provided to realize the rotational setting of the first access door 211a.

[0120] As Figure 10 shown, the first access door 211a may be provided with a first sealing member 211a-1, and the first sealing member 211a-1 may be arranged around the access opening 211d. When the first access door 211a is in the closed state, the first access door 211a may contact the frame 211b and the first bottom plate 211c through the first sealing member 211a-1. The first sealing member 211a-1 may absorb the manufacturing tolerances between the first access door 211a and the frame 211b and the first bottom plate 211c, and can effectively eliminate the gaps between the first access door 211a and the frame 211b and the first bottom plate 211c, thereby improving the sealing performance of the equipment housing 211 at the first access door 211a.

[0121] Combined with Figure 6 and Figure 8, the upper side beam 211b-1a and the transition side beam 211b-1b may be provided with a first accommodation groove 211b-5, and the transverse side wall 211c-2 of the first bottom plate 211c may be provided with a second accommodation groove 211c-2a. When the first inspection door 211a is in the closed state, the first sealing member 211a-1 may be embedded in the above-mentioned first accommodation groove 211b-5 and the second accommodation groove 211c-2a, so as to effectively reduce the lateral dimension of the equipment housing 211 when the first inspection door 211a is in the closed state; and, the first accommodation groove 211b-5 and the second accommodation groove 211c-2a may also define the deformation range of the first sealing member 211a-1, which can reduce the possibility of the first sealing member 211a-1 falling off from the first inspection door 211a.

[0122] The first inspection door 211a may also be configured with a first locking member 211a-2, and the equipment housing 211 may also be configured with a first locking component. The first locking member 211a-2 may cooperate with the first locking component to lock or unlock the first inspection door 211a.

[0123] Adopting this solution, the first inspection door 211a does not need to cooperate with the vehicle body system 1 to achieve locking, which can improve the structural independence of the under-vehicle equipment system 2, is beneficial to eliminating the fitting tolerance between the first locking member 211a-2 and the first locking component, and thus can facilitate the docking and assembly of the under-vehicle equipment system 2 and the vehicle body system 1.

[0124] The specific structural forms and quantities of the first locking member 211a-2 and the first locking component are not limited herein. In actual applications, those skilled in the art can design according to specific needs as long as they can meet the usage requirements. Exemplarily, the first locking component may be a lock seat (not shown in the figure) that can cooperate with the first locking member 211a-2. The lock seat may be assembled to the equipment housing 211, and specifically may be installed at positions such as the skeleton 211b; and / or, the first locking component may also be a locking hole 211b-1c provided on the equipment housing 211. This solution can be referred to Figure 5 , the locking hole 211b-1c may specifically be provided on the upper side beam 211b-1a. At this time, the structural form of the first locking component may be relatively simple and is beneficial to reducing the weight of the whole vehicle.

[0125] It should be understood that the solution of setting both the first locking member 211a-2 and the first locking component in the under-vehicle equipment system 2 is only a preferred solution of the embodiment of the present invention, but cannot be used as a limitation on the implementation scope of the integrated under-vehicle equipment system provided by the present invention. In actual applications, the first locking component may also be provided on the vehicle body system 1, which does not affect the realization of the locking function of the first inspection door 211a.

[0126] Combined withFigure 3 and Figure 4 In the area where the first bottom plate 211c and the first inspection door 211a are not provided on the frame 211b, that is, at the top frame 211b-2 and the longitudinal side frame 211b-3, a covering plate 211e can be configured to cover the top and the longitudinal sides of the functional device 21, so as to better isolate and protect the functional components.

[0127] In some other embodiments, as Figure 11 shown, the first inspection door 211a can also be provided on the first bottom plate 211c.

[0128] Specifically, the first bottom plate 211c can be provided with an inspection opening (not shown in the figure), and the first bottom plate 211c can be configured with a sliding guide portion 211c-1a and a sunk groove 211c-1c. The first inspection door 211a is configured with a sliding member 211a-6. The sliding member 211a-6 can slide along the sliding guide portion 211c-1a to adjust the relative position between the first inspection door 211a and the first bottom plate 211c.

[0129] When the sliding member 211a-6 slides into the sunk groove 211c-1c, the first inspection door 211a seals the inspection opening. When it is necessary to perform maintenance through the inspection opening, the first inspection door 211a can be pushed upward first so that the sliding member 211a-6 can be disengaged from the sunk groove 211c-1c, and then the first inspection door 211a can be driven to slide along the sliding guide portion 211c-1a, and the inspection opening can be opened.

[0130] The specific structural forms of the sliding guide portion 211c-1a and the sliding member 211a-6 can be various as long as they can meet the usage requirements. In the solution of the drawings, as Figure 12 and Figure 13 shown, the sliding member 211a-6 can be a roller, and the sliding guide portion 211a-1a can be a channel steel. A chute 211c-1b can be provided on the side wall of the channel steel, and the roller can slide in the chute 211c-1b to adjust the position of the first inspection door 211a relative to the first bottom plate 211c, and the sunk groove 211c-1c can be communicated with the chute 211c-1b; in addition, the roller can also directly slide in the space defined by the channel steel, and this is also feasible.

[0131] The first maintenance door 211a may also be configured with a locking member. After the sliding member 211a-6 slides into the sinking groove 211c-1c, the locking member can lock the first maintenance door 211a to prevent the first maintenance door 211a from disengaging from the maintenance opening during the operation of the rail vehicle. The specific structural form of the locking member is not limited herein. In practical applications, those skilled in the art can set it according to specific needs. For example, the locking member may include a rotatable lock plate that can abut against the side wall of the channel steel to achieve locking.

[0132] In addition to the translation solution, the first maintenance door 211a can also be rotationally assembled to the first bottom plate 211c, which is also feasible.

[0133] Such as Figure 14 As shown, the underframe 11 of the car body system 1 may include a connecting member 111 and two underframe side beams 112 arranged oppositely in the transverse direction. The connecting member 111 is used to connect the two underframe side beams 112 to form the underframe 11 into an integral component. The connecting member 111 may specifically be an underframe cross beam and a car body floor; or, the connecting member 111 may only include the car body floor. In this case, the thickness of the car body floor can be appropriately increased.

[0134] The underbody equipment system 2 may also include a connecting seat 211b-4. The connecting seat 211b-4 can be installed on the skeleton 211b or, alternatively, on the cladding plate 211e. At least one of the aforementioned connecting member 111 and the underframe side beam 112 can be connected to the connecting seat 211b-4 to realize the connection and assembly of the underbody equipment system 2 and the car body system 1.

[0135] When the first maintenance door 211a is in the closed state, the first maintenance door 211a can be in contact with the underframe side beam 112. In this way, the gap between the first maintenance door 211a and the underframe side beam 112 can be effectively eliminated, thereby reducing the possibility of dust and other impurities in the outer space III on the transverse side of the rail vehicle from entering the interior of the underbody equipment system 2, which is beneficial to ensuring the cleanliness of the interior of the underbody equipment system 2; and it is also beneficial to improving the aerodynamic performance of the whole vehicle.

[0136] Such as Figure 15 As shown, the first maintenance door 211a may be configured with a second sealing member 211a-3. Specifically, the first maintenance door 211a can be in contact with the underframe side beam 112 through the second sealing member 211a-3. The second sealing member 211a-3 can absorb the manufacturing tolerance between the first maintenance door 211a and the underframe side beam 112 through its own deformation and can improve the sealing effect.

[0137] It should be understood that the installation position of the second sealing member 211a-3 is related to the opening and closing manner of the first inspection door 211a and the compression deformation direction of the second sealing member 211a-3.

[0138] In one embodiment, the second sealing member 211a-3 can be compressed laterally. Under such compression deformation conditions, the wear of the second sealing member 211a-3 during use is relatively small. This embodiment can be referred to Figure 15 , at this time, the first inspection door 211a is a downward-flipping structure, and the second sealing member 211a-3 can be installed on the inner wall surface of the first inspection door 211a laterally; or, this embodiment can also be referred to Figure 16 , at this time, the first inspection door 211a is an upward-flipping structure, and the second sealing member 211a-3 can be installed on the outer wall surface of the first inspection door 211a laterally.

[0139] In another embodiment, the second sealing member 211a-3 can also be compressed vertically. At this time, the second sealing member 211a-3 can be installed on the top of the first inspection door 211a, and this is also feasible.

[0140] As Figure 17 shown, the first inspection door 211a can be configured with a first ventilation opening 211a-4, and the first ventilation opening 211a-4 can also be configured with a first filtering member (not shown in the figure). The first filtering member can specifically be a filter screen, etc. Through the setting of the first ventilation opening 211a-4, the functional device 21 can take air from the outer space III laterally of the under-vehicle equipment system 2 to achieve ventilation and heat dissipation of the functional device.

[0141] As Figure 18 shown, in actual use, a first chamber I can be formed between the equipment housing 211 and the chassis 11. The first chamber I can specifically be located above the equipment housing 211, and there is also air in the first chamber I.

[0142] Based on this, in the embodiments of the present invention, the device housing 211 may have an inner cavity (not shown in the figure) and a transition cavity 211-1. Functional devices may be installed in the inner cavity. A first opening may be provided at the top of the device housing 211, and the first opening may be used to communicate the transition cavity 211-1 and the first chamber I. The inner cavity and the transition cavity 211-1 may be separated by a partition 211e-1, and the partition 211e-1 is a part of the covering plate 211e. The partition 211e-1 may be provided with a second ventilation opening 211e-1a, and the second ventilation opening 211e-1a is further configured with a second filtering component (not shown in the figure), and the second filtering component may specifically be a filter screen. The first ventilation opening 211a-4 may communicate with the transition cavity 211-1. In this way, in addition to taking air from the outer space III in the lateral direction of the vehicle-mounted equipment system 2, the functional device 21 may also take air from the first chamber I, which can enhance the ventilation and heat dissipation effect.

[0143] In fact, a second chamber II is also formed in the bridging cover 22, and there is also air in the second chamber II. Thus, a second opening may be provided at the longitudinal side of the device housing 211, and the second opening is used to communicate the transition cavity 211-1 and the second chamber II, and the second chamber II and the first chamber I may communicate with each other. At this time, the functional device 21 may also take air from the second chamber II, and the ventilation and heat dissipation effect can be further enhanced.

[0144] It should be understood that there is a corresponding relationship between the differences in the ventilation and heat dissipation structure forms and the types of functional devices provided in the functional device 21. If the heat dissipation requirement of the functional devices in the functional device 21 is general, air may be directly taken from the outer space III through the first ventilation opening 211a-4. If the heat dissipation requirement of the functional devices in the functional device 21 is large, air may be taken through both the first ventilation opening 211a-4 and the second ventilation opening 211e-1a. As for the functional devices with very low heat dissipation requirements in the functional device 21, there is no need to be arranged close to the first ventilation opening 211a-4 or the second ventilation opening 211e-1a, and only the air after the heat dissipation of other functional devices can meet the basic heat dissipation requirements. That is to say, in specific use, the ventilation and heat dissipation structure form of the device housing 211 may be adjusted according to the differences in the types and installation positions of the heat dissipation devices in the functional device 21.

[0145] Please refer to Figures 19 - 30 , Figure 19 which is a schematic structural diagram of a specific embodiment of the bridging cover, Figure 20 is Figure 19 the connection structure diagram of the bottom member and the first bottom plate in Figure 21 is Figure 20 the schematic structural diagram of the deformation scheme of Figure 22 is Figure 19 the transverse sectional view ofFigure 23 is Figure 22 a partial enlarged view of region E in Figure 24 is Figure 22 a partial enlarged view of region F in Figure 25 is a connection structure diagram of the slide rail and the lower side beam, Figure 26 is a connection structure diagram of the adapter plate and the anti-rotation member, Figure 27 is a schematic structural diagram of a specific implementation manner of the second locking member, Figure 28 is Figure 27 a schematic structural diagram of the second locking member connecting the second bottom plate and the lower side beam in Figure 29 is a schematic structural diagram of another specific implementation manner of the second locking member, Figure 30 is Figure 29 a schematic structural diagram of the second locking member connecting the second bottom plate and the lower side beam in

[0146] As Figure 19 shown, the bridging cover 22 may include a bottom member 221 and two side members 222, and the two side members 222 may be spaced apart in the transverse direction.

[0147] Among the side member 222 and the bottom member 221, at least one of them may be connected to the equipment housing 211 to connect the bridging cover 22 and the functional device 21 into an integral component. In this way, the integrity of the under-vehicle equipment system 2 is better, which is more conducive to the docking and assembly of the under-vehicle equipment system 2 and the vehicle body system 1. It should be understood that the bridging cover 22 may actually not be connected to the functional device 21 either. At this time, the bridging cover 22 may be directly connected to the vehicle body system 1 to fix the bridging cover 22. The bridging cover 22 and the functional device 21 may be in a state of being in contact but not connected. For the convenience of description, in the following related descriptions, the connection between the bridging cover 22 and the functional device 21 is taken as an example for elaboration.

[0148] A longitudinal side of the equipment housing 211 may be provided with an installation interface 211c-3a extending in the transverse direction. A connecting member in the form of a bolt or the like may be assembled in the installation interface 211c-3a and connected to the bottom member 221 to achieve the installation and fixation of the bottom member 221 and the equipment housing 211. Combining Figure 9 , the installation interface 211c-3a may be provided on the longitudinal side wall 211c-3 of the first bottom plate 211c. Of course, the installation interface 211c-3a may also be provided at other positions of the equipment housing 211, such as being installed on the covering plate 211e of the longitudinal side frame 211b-3, etc.

[0149] As Figure 19 and Figure 20As shown in the figure, the bottom member 221 may include a slide rail 221a and a second bottom plate 221b. The slide rail 221a may be fixedly installed on the longitudinal side of the equipment housing 211, and the second bottom plate 221b may be slidably assembled on the slide rail 221a. In this way, the relative position between the second bottom plate 221b and the slide rail 221a can be conveniently adjusted. When the second bottom plate 221b slides out laterally relative to the slide rail 221a, an opening may be formed on the bottom member 221, and the staff can enter the second chamber II inside the bridging cover 22 through this opening, so that it is convenient to perform maintenance operations on relevant areas such as the inside of the bridging cover 22 or the longitudinal side of the functional device 21.

[0150] As an alternative to the above solution, as Figure 21 shown, the bottom member 221 may also be an integral structure and then fixedly assembled to the first bottom plate 211c as a whole, which is also feasible.

[0151] For ease of description, in the following embodiments of the present invention, only the solution in which the bottom member 221 includes a slide rail 221a and a second bottom plate 221b is taken as an example for elaboration.

[0152] Please continue to refer to Figure 20 , the slide rail 221a may include a horizontal plate portion 221a-1 and a vertical plate portion 221a-2 arranged at an angle. Among them, the vertical plate portion 221a-2 is used to connect to the first bottom plate 211c, and the horizontal plate portion 221a-1 is provided with a sliding engagement portion 221a-1a. Sliding cooperation portions are provided at the longitudinal ends of the second bottom plate 221b, and the sliding cooperation portions can slide along the sliding engagement portion 221a-1a to achieve the sliding assembly of the second bottom plate 221b on the slide rail 221a.

[0153] Among the sliding engagement portion 221a-1a and the sliding cooperation portion, one may be a concave structure and the other may be a convex structure, and the convex structure and the concave structure can form a sliding guide.

[0154] Furthermore, the bridging cover 22 may further include a pressing component 228. The pressing component 228 may be installed on the slide rail 221a to improve the integration of the equipment, or the pressing component 228 may also be separately assembled to the equipment housing 211. The pressing component 228 is used to press the second bottom plate 221b vertically to reduce the relative displacement between the second bottom plate 221b and the slide rail 221a in the vertical direction during the operation of the rail vehicle, and thus the structural stability of the bridging cover 22 can be improved.

[0155] Here, the embodiments of the present invention do not limit the specific structural form of the pressing component 228. In actual applications, those skilled in the art can configure it according to specific needs as long as it can meet the usage requirements. Exemplarily, such as Figure 23 and Figure 24As shown, the pressing component 228 may include a pressing wheel 228a. The pressing wheel 228a may be installed on the slide rail 221a and can rotate, which can reduce the sliding resistance of the second bottom plate 221b, and thus can reduce the wear during the disassembly and assembly of the second bottom plate 221b. Alternatively, the pressing component 228 may also be a limiting structure in the form of a pressing block or the like.

[0156] During specific installation, the vertical installation position of the pressing component 228 can be adjusted, and thus the distance between the pressing component 228 and the second bottom plate 221b can be adjusted to avoid excessive frictional resistance between the pressing component 228 and the second bottom plate 221b.

[0157] Furthermore, the second bottom plate 221b may also be provided with a protrusion 221b-3. Specifically, the pressing component 228 may be in vertical contact with the protrusion 221b-3. Through the setting of the protrusion 221b-3, the wear of the main structure of the second bottom plate 221b can be reduced. Also, during installation, the installation position of the pressing component 228 can be appropriately raised so that the pressing component 228 only contacts the protrusion 221b-3 to reduce the wear of other areas of the second bottom plate 221b. The specific structural form of the protrusion 221b-3 is not limited herein.

[0158] In practical applications, the vertical displacement of the second bottom plate 221b can also be restricted by adjusting the sliding fit structure between the slide rail 221a and the second bottom plate 221b. Exemplarily, a chute can be provided on the slide rail 221a, and the second bottom plate 221b can slide within the chute. In this implementation, the side wall of the chute can limit the second bottom plate 221b, thereby suppressing the vertical displacement of the second bottom plate 221b.

[0159] The second bottom plate 221b can be an integral structure.

[0160] Alternatively, the second bottom plate 221b may also include a plurality of sub-boards 221b-1 arranged horizontally, so that the processing difficulty of the second bottom plate 221b can be reduced. Figure 24 Combined with this, a third sealing component 221b-2 can be provided between adjacent sub-boards 221b-1, and adjacent sub-boards 221b-1 can be in contact through the third sealing component 221b-2 to improve the sealing performance.

[0161] In some alternative embodiments, the bottom member 221 may further include a lower side beam 221c. The lower side beam 221c can be located on the lateral side of the slide rail 221a and can be connected to the slide rail 221a. In this way, the lower side beam 221c and the slide rail 221a can form a frame-like structure, thereby improving the structural strength of the bridging cover 22.

[0162] Here, the embodiments of the present invention do not limit the specific connection manner between the lower side beam 221c and the slide rail 221a. In practical applications, those skilled in the art can adjust according to specific needs as long as the usage requirements can be met.

[0163] As Figure 25 and Figure 26 shown, the bridging cover 22 may further include an adapter plate 224. The adapter plate 224 may include a first plate portion 224a and a second plate portion 224b. The first plate portion 224a and the second plate portion 224b may be arranged at an angle, specifically a ninety-degree angle. The first plate portion 224a may be connected to the slide rail 221a, and the second plate portion 224b may be connected to the lower side beam 221c, thereby realizing the connection and assembly of the lower side beam 221c and the slide rail 221a.

[0164] The lower side beam 221c and the second plate portion 224b may specifically be connected by connecting bolts 225. In combination with Figure 26 , the lower side beam 221c may further be provided with an anti-rotation member 221c-1. The anti-rotation member 221c-1 may have a card slot 221c-1a, and the head of the connecting bolt 225 can be inserted into the card slot 221c-1a to limit the rotation of the connecting bolt 225. In this way, when assembling the lower side beam 221c and the second plate portion 224b, only the nut needs to be directly screwed, and the installation is more convenient.

[0165] In Figure 26 the embodiment, the anti-rotation member 221c-1 may specifically be a channel steel. The anti-rotation of the connecting bolt 225 can be better achieved through the two side wall plates of the channel steel. In addition, the anti-rotation member 221c-1 may also be an anti-rotation plate, an anti-rotation rod and other structural members. The anti-rotation plate can still cooperate with the outer wall surface of the head of the connecting bolt 225 to achieve anti-rotation, and the anti-rotation rod can be radially inserted through the head of the connecting bolt 225 to achieve the purpose of anti-rotation.

[0166] Based on the sliding assembly of the second bottom plate 221b, in the embodiments of the present invention, the bridging cover 22 may further include a second locking member 227. The second locking member 227 can lock the second bottom plate 221b to the lower side beam 221c to lock the installation position of the second bottom plate 221b in the normal state. Here, the embodiments of the present invention do not limit the specific structural form of the second locking member 227. In practical applications, those skilled in the art can design according to specific needs as long as the usage requirements can be met.

[0167] In one embodiment, as Figure 27 and Figure 28 shown, the second locking member 227 may include a locking pin 227a and a lock cylinder seat 227b.

[0168] The lock cylinder base 227b can be fixedly installed on the second bottom plate 221b, and a groove-shaped track 227b-1 can be provided on the cylinder wall of the lock cylinder base 227b. The lock pin 227a includes a pin portion 227a-1 and a handle portion 227a-2. The pin portion 227a-1 can be inserted into the lock cylinder base 227b, the handle portion 227a-2 can be connected to the pin portion 227a-1 and can be located within the groove-shaped track 227b-1. The handle portion 227a-2 can drive the pin portion 227a-1 to displace. By adjusting the position of the handle portion 227a-2 within the groove-shaped track 227b-1, the second locking member 227 can lock or unlock the second bottom plate 221b.

[0169] In another embodiment, as Figure 29 and Figure 30 shown, the second locking member 227 can include a locking bolt 227c, a lock block 227d, a lock rope 227e, a lock nut 227f, and a lock plate seat 227g.

[0170] The lock plate seat 227g can be installed on the second bottom plate 221b, the lock block 227d can be installed on the lock plate seat 227g. A lock hole 227c-1 extending radially along it is provided on the head of the locking bolt 227c. The locking bolt 227c can pass through the lock plate seat 227g and the lower side beam 221c, and then be connected to the lock nut 227f to achieve the locking of the second bottom plate 221b and the lower side beam 221c; the lock rope 227e can be inserted into the lock hole 227c-1, and the lock rope 227e can be connected to the lock block 227d to lock the locking bolt 227c, thereby reducing the possibility of the locking bolt 227c loosening and falling off. With this solution, the second locking member 227 is an independent component and does not require other structural parts to be machined on the second bottom plate 221b, which is beneficial to simplifying the structure of the second bottom plate 221b.

[0171] As a variation of the above embodiment, the lock plate seat 227g can also be omitted. At this time, the lock block 227d can be directly installed on the second bottom plate 221b, and the locking bolt 227c can directly pass through the second bottom plate 221b to connect the second bottom plate 221b and the lower side beam 221c.

[0172] Combined with Figure 28 and Figure 30 , the bridging cover 22 can also include a fourth sealing member 226, and the fourth sealing member 226 is used to seal the gap between the lower side beam 221c and the second bottom plate 221b to improve the sealing performance.

[0173] The side member 222 and the bottom member 221 can be fixedly connected, so that the structural form of the bridging cover 22 can be relatively simple.

[0174] Alternatively, the side member 222 and the bottom member 221 can also be rotatably connected. In this way, the side member 222 can also be switched between the open state and the closed state, which can increase the maintenance positions and facilitate the maintenance operation of the under-vehicle equipment system 2. Similar to the aforementioned first maintenance door 211a, the rotatably arranged side member 222 also includes an upward-flipping structure and a downward-flipping structure; when it is an upward-flipping structure, the side member 222 is rotatably assembled to the chassis 11; when it is a downward-flipping structure, the side member 222 is rotatably assembled to the lower side beam 221c. For the solution that does not include the lower side beam 221c, the side member 222 can also be directly rotatably assembled to the second bottom plate 221b.

[0175] Furthermore, a fifth sealing member 222a can also be included. The fifth sealing member 222a is used to achieve the sealing between the side member 222 and the bottom member 221, between the side member 222 and the equipment housing 211, and between the side member 222 and the chassis 11. In this way, the possibility of dust and other impurities in the outer space III entering the bridging cover 22 can be reduced, which is beneficial to ensuring the cleanliness inside the bridging cover 22 and improving the aerodynamic performance of the whole vehicle.

[0176] For the first sealing member 211a-1, the second sealing member 211a-3, the third sealing member 221b-2, the fourth sealing member 226, and the fifth sealing member 222a involved in the embodiments of the present invention above, their types and structures can be the same or different, and can be specifically configured by those skilled in the art according to actual needs, as long as they can meet the usage requirements. Exemplarily, these sealing members can be prepared from materials such as rubber, latex, resin, etc. that have a certain flexible deformation ability.

[0177] The structural form of the bridging cover 22 is different from that of the equipment housing 211. The bridging cover 22 does not have the upper side beam 211b-1a and the transition side beam 211b-1b in the equipment housing 211. Therefore, the structural form of the bridging cover 22 is relatively simple, and the weight of the bridging cover 22 is also relatively light, which is beneficial to achieving the lightweight of the whole vehicle. Under this condition, the fifth sealing member 222a between the side member 222 and the equipment housing 211 can be arranged in the longitudinal gap between the side member 222 and the equipment housing 211.

[0178] As for the fifth sealing member 222a between the side member 222 and the chassis 11, it can be arranged with reference to the aforementioned second sealing member 211a-3, and no repeated description will be made here.

[0179] Furthermore, the side member 222 can also be configured with a third locking member 222b, and the chassis 11 is configured with a second locking member. The cooperation between the third locking member 222b and the second locking member can achieve the locking or unlocking of the side member 222.

[0180] The structural forms of the third locking member 222b and the second latching member may refer to the aforementioned first locking member 211a-2 and the first latching member, and no repetitive description will be given here.

[0181] In some embodiments, the bottom member 221 may be provided with a second inspection door through which the equipment system under the vehicle can be inspected and maintained at the position where the bridging cover 22 is located. The specific assembly manner of the second inspection door may refer to the aforementioned first inspection door 211a provided on the first bottom plate 211c, and no repetitive description will be given here.

[0182] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A combined under - vehicle equipment system is installed on the car body system (1) of a rail vehicle. The car body system (1) includes a chassis (11), and the car body system (1) has an outer contour surface (1a) of the car body. It is characterized in that, The integrated under-vehicle equipment system includes: A functional device (21), including a device housing (211) and functional components. The functional components are installed inside the device housing (211). The device housing (211) is used to connect to the underframe (11). The device housing (211) has a first outer contour surface (2a-1), and the device housing (211) includes a first inspection door (211a); A bridging cover (22), located on one or both longitudinal sides of the functional device (21). The bridging cover (22) is connected to the device housing (211). The bridging cover (22) has a second outer contour surface (2a-2). The first outer contour surface (2a-1), the second outer contour surface (2a-2), and the outer contour surface of the vehicle body (1a) combine to form the outer contour of the rail vehicle.

2. The integrated under-vehicle equipment system according to claim 1, wherein The first inspection door (211a) is located on the lateral side of the device housing (211), and the first inspection door (211a) is rotatably arranged.

3. The integrated under-vehicle equipment system according to claim 2, wherein, The first inspection door (211a) is of an upward-folding structure or a downward-folding structure.

4. The integrated under-vehicle equipment system according to claim 2, wherein The device housing (211) includes a skeleton (211b) and a first bottom plate (211c). The skeleton (211b) includes two lateral frames (211b-1) arranged opposite to each other in the transverse direction. The first bottom plate (211c) is connected to the two lateral frames (211b-1), and the first bottom plate (211c) and the lateral frames (211b-1) enclose an inspection opening (211d). The first inspection door (211a) can block the inspection opening (211d).

5. The integrated under-vehicle equipment system according to claim 4, wherein, It also includes a first sealing component (211a-1) arranged around the inspection opening (211d). The first sealing component (211a-1) is installed on the first inspection door (211a).

6. The integrated under-vehicle equipment system according to claim 4, wherein The skeleton (211b) further includes a top frame (211b-2) and two longitudinal frames (211b-3) arranged opposite to each other in the longitudinal direction. The two lateral frames (211b-1) and the two longitudinal frames (211b-3) are both connected to the top frame (211b-2), and the two lateral frames (211b-1) and the two longitudinal frames (211b-3) are both connected to the first bottom plate (211c).

7. The integrated under-vehicle equipment system according to claim 1, wherein The device housing (211) includes a first bottom plate (211c), and the first inspection door (211a) is configured on the first bottom plate (211c).

8. The integrated under-vehicle equipment system according to claim 7, characterized in that, The first bottom plate (211c) is provided with an inspection opening. The first bottom plate (211c) is configured with a sliding guide portion (211c-1a) and a sinking groove (211c-1c). The first inspection door (211a) is configured with a sliding member (211a-6). The sliding member (211a-6) can slide along the sliding guide portion (211c-1a) to adjust the relative position between the first inspection door (211a) and the first bottom plate (211c); When the sliding member (211a-6) slides into the sunk groove (211c-1c), the first inspection door (211a) seals the inspection opening.

9. The integrated under-vehicle equipment system according to claim 1, wherein, The underframe (11) includes a connecting member (111) and two underframe side beams (112) oppositely arranged in the transverse direction, and the connecting member (111) connects the two underframe side beams (112); The functional device (21) is configured with a plurality of connecting seats (211b-4), and at least part of the connecting seats (211b-4) among the connecting seats (211b-4) are used to be connected to the connecting member (111).

10. The integrated under-vehicle equipment system according to claim 1, wherein, The first inspection door (211a) is configured with a first locking member (211a-2), and the equipment housing (211) is further configured with a first locking component. The first locking member (211a-2) and the first locking component can cooperate to lock or unlock the first inspection door (211a).

11. The integrated under-vehicle equipment system according to claim 10, wherein The first locking component is a locking hole (211b-1c) provided on the equipment housing (211).

12. The integrated under-vehicle equipment system according to claim 1, wherein The underframe (11) includes a connecting member (111) and two underframe side beams (112) oppositely arranged in the transverse direction, and the connecting member (111) connects the two underframe side beams (112); In the closed state, the first inspection door (211a) can be in contact with the underframe side beam (112).

13. The integrated under-vehicle equipment system according to claim 12, wherein The first inspection door (211a) is configured with a second sealing member (211a-3), and the first inspection door (211a) is in contact with the underframe side beam (112) through the second sealing member (211a-3).

14. The integrated under-vehicle equipment system according to claim 1, wherein The first inspection door (211a) is configured with a first ventilation opening (211a-4), and the first ventilation opening (211a-4) is further configured with a first filtering component.

15. The integrated under-vehicle equipment system according to claim 14, wherein A first chamber (I) can be formed between the equipment housing (211) and the underframe (11). The equipment housing (211) has an inner cavity and a transition cavity (211-1). The functional device is installed in the inner cavity. A first opening is provided at the top of the equipment housing (211), and the first opening is used to communicate the transition cavity (211-1) and the first chamber (I). The inner cavity and the transition cavity (211-1) are separated by a partition (211e-1). The partition (211e-1) is provided with a second ventilation opening (211e-1a), and the second ventilation opening (211e-1a) is further configured with a second filtering component. The first ventilation opening (211a-4) is communicated with the transition cavity (211-1).

16. The integrated under-vehicle equipment system according to claim 15, wherein A second chamber (II) is formed in the bridging cover (22). A second opening is further provided on the longitudinal side of the equipment housing (211), and the second opening is used to communicate the transition cavity (211-1) and the second chamber (II). The second chamber (II) is communicated with the first chamber (I).

17. The integrated under-vehicle equipment system according to claim 1, wherein The number of the functional devices (21) is multiple, and the functional devices (21) are arranged at intervals along the longitudinal direction. The bridging cover (22) is provided between two adjacent functional devices (21).

18. The integrated under-vehicle equipment system according to any one of claims 1-17, characterized in that, The bridging cover (22) includes a bottom member (221) and two side members (222), and the two side members (222) are spaced apart in the transverse direction; At least one of the side member (222) and the bottom member (221) is connected to the equipment housing (211).

19. The integrated under-vehicle equipment system according to claim 18, wherein An installation interface (211c-3a) extending in the transverse direction is provided on the longitudinal side of the equipment housing (211), and the bottom member (221) is assembled to the equipment housing (211) through the installation interface (211c-3a).

20. The integrated under-vehicle equipment system according to claim 19, wherein, The bottom member (221) includes a slide rail (221a) and a second bottom plate (221b), the slide rail (221a) is fixedly installed on the longitudinal side of the equipment housing (211), and the second bottom plate (221b) is slidably assembled to the slide rail (221a).

21. The integrated under-vehicle equipment system according to claim 20, wherein The second bottom plate (221b) includes a plurality of sub-plates (221b-1) arranged in the transverse direction, a third sealing member (221b-2) is provided between adjacent two of the sub-plates (221b-1), and adjacent two of the sub-plates (221b-1) are in contact through the third sealing member (221b-2).

22. The integrated under-vehicle equipment system according to claim 20, wherein The bottom member (221) further includes a lower side beam (221c), the lower side beam (221c) is located on the transverse side of the slide rail (221a), and the lower side beam (221c) is connected to the slide rail (221a).

23. The integrated under-vehicle equipment system according to claim 22, wherein, A transfer plate (224) is further included, the transfer plate (224) includes a first plate portion (224a) and a second plate portion (224b), the first plate portion (224a) and the second plate portion (224b) are arranged at an angle, the first plate portion (224a) is connected to the slide rail (221a), and the second plate portion (224b) is connected to the lower side beam (221c).

24. The integrated under-vehicle equipment system according to claim 23, wherein The lower side beam (221c) and the second plate portion (224b) are connected by a connecting bolt (225), and the lower side beam (221c) is further provided with an anti-rotation member (221c-1), and the anti-rotation member (221c-1) can limit the rotation of the connecting bolt (225).

25. The integrated under-vehicle equipment system according to claim 22, wherein A fourth sealing member (226) is further included, and the fourth sealing member (226) is used to seal the gap between the lower side beam (221c) and the second bottom plate (221b).

26. The integrated under-vehicle equipment system according to claim 22, characterized in that, A second locking member (227) is further included, and the second locking member (227) can lock the second bottom plate (221b) to the lower side beam (221c).

27. The integrated under-vehicle equipment system according to claim 26, wherein The second locking member (227) includes a locking pin (227a) and a lock cylinder seat (227b), the lock cylinder seat (227b) is fixedly installed on the second bottom plate (221b), the locking pin (227a) is installed in the lock cylinder seat (227b) and can be displaced relative to the lock cylinder seat (227b); and / or, The second locking member (227) includes a locking bolt (227c), a locking block (227d), and a locking rope (227e). A locking hole (227c-1) extending radially along the head of the locking bolt (227c) is provided. The locking block (227d) is fixedly arranged. The locking rope (227e) can be inserted into the locking hole (227c-1), and the locking rope (227e) can be connected to the locking block (227d).

28. The integrated under-vehicle equipment system according to claim 20, wherein It further includes a pressing member (228), and the pressing member (228) is used to press the second bottom plate (221b) vertically.

29. The integrated under-vehicle equipment system according to claim 28, wherein, The pressing member (228) includes a pressing wheel (228a). The pressing wheel (228a) is installed on the slide rail (221a). The second bottom plate (221b) is provided with a protruding portion (221b-3), and the pressing wheel (228a) is used to abut against the protruding portion (221b-3) vertically.

30. The integrated under-vehicle equipment system according to claim 18, wherein The side member (222) is rotatably assembled to the bottom member (221); alternatively, the side member (222) is rotatably assembled to the underframe (11).

31. The integrated under-vehicle equipment system according to claim 30, wherein It further includes a fifth sealing member (222a), and the fifth sealing member (222a) is used to seal between the side member (222) and the bottom member (221), between the side member (222) and the equipment housing (211), and between the side member (222) and the underframe (11).

32. The integrated under-vehicle equipment system according to claim 30, wherein The side member (222) is configured with a third locking member (222b), and the underframe (11) is configured with a second locking component. The third locking member (222b) and the second locking component cooperate to lock or unlock the side member (222).

33. The integrated under-vehicle equipment system according to claim 18, wherein The bottom member (221) is configured with a second inspection door.

34. An orbital vehicle, comprising a car body system (1) and an undercarriage equipment system (2), characterized in that, The under-vehicle equipment system (2) is the integrated under-vehicle equipment system according to any one of claims 1-33.

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