Air braking system under vehicle and railway vehicle

Abstract

The invention discloses an under-vehicle air braking system and a rail vehicle, and relates to the technical field of vehicle engineering. The under-vehicle air braking system comprises a mounting framework; the brake control module and the mounting framework are sequentially arranged in the first direction; the air path control module is fixed below the mounting framework, and in the first direction, the air path control module is connected to the end, away from the brake control module, of the mounting framework; and the pipeline module comprises a first connecting pipeline, the first connecting pipeline is arranged above the mounting framework, and the two ends of the first connecting pipeline extend downwards to be connected with the brake control module and the gas path control module correspondingly. At least part of the pipeline is distributed above the installation framework, the pipeline can be supported by means of the installation framework, the situation that the pipeline shares space with equipment below the installation framework is avoided, sub-area arrangement of components is achieved, and therefore assembling and overhauling can be more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to an under-vehicle air brake system and a rail vehicle. Background Art

[0002] In a rail vehicle, an under-vehicle air brake system is provided under the vehicle body, including a brake control module, an air storage module, an air path control module and other structures, which can perform braking operations on the rail vehicle.

[0003] In one installation method, the air control module and the brake control module are connected by connecting pipes, and the air storage module and the connecting pipes are all installed centrally under a mounting frame, resulting in a complex structure under the mounting frame, which brings inconvenience to the assembly and maintenance of the equipment in this section.

[0004] Therefore, how to reduce the difficulty of assembling and repairing the under-vehicle air brake system is a technical problem that those skilled in the art currently need to solve. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an undercarriage air brake system and a rail vehicle including the undercarriage air brake system, wherein the undercarriage air brake system can be assembled and repaired more conveniently.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An under-vehicle air brake system includes: a mounting frame; a brake control module, which is arranged in sequence with the mounting frame along a first direction; an air circuit control module, which is fixed below the mounting frame and, in the first direction, is connected to an end of the mounting frame away from the brake control module; a pipeline module, including a first connecting pipeline, the first connecting pipeline is arranged above the mounting frame, and both ends of the first connecting pipeline extend downward to respectively connect the brake control module and the air circuit control module.

[0008] Exemplarily, it also includes an air storage module, which is arranged below the mounting frame; the pipeline module also includes a second connecting pipeline, which is arranged above the mounting frame and is layered with the first connecting pipeline in the up and down directions, and the two ends of the second connecting pipeline extend downward to respectively connect the air path control module and the air storage module.

[0009] Illustratively, the mounting frame has a vertical plate at one end away from the brake control module in the first direction; the air path control module is integrally mounted on the vertical plate and is located on a side of the vertical plate away from the brake control module.

[0010] Exemplarily, the air circuit control module includes an air circuit plate, an inner plate air passage is opened inside the air circuit plate, and the inner plate air passage forms an air circuit interface on an outer surface of the air circuit plate.

[0011] Exemplarily, the intra-board air channel is provided with at least two layers in the first direction.

[0012] Exemplarily, the gas circuit interface includes pipeline interfaces distributed on the top surface and two side surfaces in the second direction of the gas circuit plate; the first direction, the second direction and the up and down directions are perpendicular to each other.

[0013] Exemplarily, the air circuit control module includes an air circuit plate and a plurality of air circuit functional elements. The surface of the air circuit plate away from the brake control module in the first direction forms a mounting surface, and each of the air circuit functional elements is arranged on the mounting surface.

[0014] Exemplarily, the gas circuit functional element includes a pipe-connected electric plug door provided on the top of the mounting surface, and the top structure of the pipe-connected electric plug door protrudes above the gas circuit plate.

[0015] Exemplarily, the air circuit functional element includes a pipe-connected electric plug door provided on the mounting surface, and the pipe-connected electric plug door is connected to the air circuit plate through an elbow structure, the elbow structure includes a flange, a joint body and a sealing ring, the flange is bolted to the mounting surface, the joint body has a curved elbow airway, the elbow airway is connected to the airway of the air circuit plate and the pipe-connected electric plug door, and the sealing ring is provided between the joint body and the pipe-connected electric plug door.

[0016] A rail vehicle includes an upper and lower air brake system.

[0017] The under-vehicle air brake system provided by the present invention includes: a mounting frame; a brake control module, which is arranged in sequence with the mounting frame along a first direction; an air circuit control module, which is fixed below the mounting frame, and in the first direction, the air circuit control module is connected to an end of the mounting frame away from the brake control module; a pipeline module, including a first connecting pipeline, the first connecting pipeline is arranged above the mounting frame, and the two ends of the first connecting pipeline extend downward to respectively connect the brake control module and the air circuit control module.

[0018] This under-vehicle air brake system, by distributing at least part of the pipelines above the mounting frame, can be supported by the mounting frame and avoid sharing space with equipment below the mounting frame, thereby realizing regional setting of components and reducing interference between components below the mounting frame, thereby making it more convenient to assemble and repair the pipelines in the under-vehicle air brake system and the components below the mounting frame.

[0019] The rail vehicle provided by the present invention includes the above-mentioned under-vehicle air brake system, and its under-vehicle air brake system can be assembled and repaired more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A front view of an under-vehicle air brake system according to a specific embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of an under-vehicle air brake system according to a specific embodiment of the present invention;

[0023] Figure 3 A side view of an under-vehicle air brake system according to a specific embodiment of the present invention;

[0024] Figure 4 A partial exploded view of a mounting frame in an under-vehicle air brake system according to a specific embodiment of the present invention;

[0025] Figure 5 This is a structural diagram of an air circuit control module in an under-vehicle air brake system according to a specific embodiment of the present invention;

[0026] Figure 6 A side view of an air circuit control module in an under-vehicle air brake system according to a specific embodiment of the present invention;

[0027] Figure 7 A top view of an air circuit control module in an under-vehicle air brake system according to a specific embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of an elbow structure in an under-vehicle air brake system according to a specific embodiment of the present invention.

[0029] Reference numerals:

[0030] 1-Brake control module;

[0031] 2-air circuit control module, 21-pipe-connected electric plug door, 22-plate plug door, 23-relief valve, 24-test head, 25-external air intake quick structure, 26-dust filter, 27-air circuit board, 271-pipe interface, 272-mounting surface, 28-elbow structure, 281-connector body, 282-sealing ring, 283-flange, 284-sealing ring mounting seat, 285-locking nut;

[0032] 3-installation frame, 31-vertical plate, 32-bottom plate, 321-first connecting plate, 322-second connecting plate, 33-layered plate;

[0033] 4- pipeline module, 41- first connecting pipeline, 42- second connecting pipeline;

[0034] 5- air storage module, 51- air storage cylinder;

[0035] 6- Crossbar. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The core of the present invention is to provide an undercarriage air brake system and a rail vehicle comprising the undercarriage air brake system. The undercarriage air brake system can be assembled and repaired more conveniently.

[0038] The specific embodiment 1 of the undercar air brake system provided by the present invention can be applied to rail vehicles. Figures 1 to 8 The undercar air brake system includes a mounting frame 3, a brake control module 1, an air circuit control module 2, and a pipeline module 4. The mounting frame 3 can be used to mount the brake control module 1, the air circuit control module 2, and the pipeline module 4.

[0039] Air storage module 5 stores compressed air, ensuring sufficient air supply during braking. Brake control module 1 controls the air circuit's on / off state and regulates pressure. Air circuit control module 2 manages air flow and pressure to ensure proper operation of the braking system. The coordination of air storage module 5, brake control module 1, and air circuit control module 2 allows compressed air to be used to decelerate and stop the vehicle, ensuring proper operation of the braking system and vehicle safety.

[0040] like Figure 1As shown, the brake control module 1 and the mounting frame 3 are arranged in sequence along the first direction X. The air circuit control module 2 is fixed below the mounting frame 3, and in the first direction X, the air circuit control module 2 is connected to the end of the mounting frame 3 away from the brake control module 1, as shown in FIG. Figure 1 In the orientation, the first direction X corresponds to the left-right direction, the brake control module 1 is located on the right side of the mounting frame 3 , and the pneumatic control module 2 is connected to the lower left end of the mounting frame 3 .

[0041] like Figure 2 As shown, the pipeline module 4 includes multiple pipelines, a portion of which is a first connecting pipeline 41. The first connecting pipeline 41 is arranged above the mounting frame 3, and both ends of the first connecting pipeline 41 extend downward to connect the brake control module 1 and the air control module 2 respectively.

[0042] The under-vehicle air brake system in this embodiment can be supported by the mounting frame 3 by distributing at least part of the pipeline above the mounting frame 3, and avoids sharing space with the equipment below the mounting frame 2, thereby realizing the regional setting of components, which makes assembly and maintenance more convenient.

[0043] Furthermore, if Figure 2 As shown, the air storage module 5 is provided below the mounting frame 3. The air storage module 5 includes a plurality of air storage cylinders 51 sequentially arranged along the first direction X. Specifically, the air storage module 5 includes three air storage cylinders 51. For example, the three air storage cylinders 51 may be a main air cylinder, a brake air cylinder, and an auxiliary air cylinder.

[0044] The pipeline in the pipeline module 4 also includes a second connecting pipeline 42, which is arranged above the mounting frame 3 and is layered with the first connecting pipeline 41 in the up and down directions. Both ends of the second connecting pipeline 42 extend downward to connect the air path control module 2 and the air storage module 5 respectively.

[0045] It should be noted that the piping in the piping module 4 is disposed above the mounting frame 3, meaning that the main portion of the piping is located above the mounting frame 3, typically the middle portion of the piping. Furthermore, because both ends of the piping need to interface with the air control module 2, the air storage module 5, or the brake control module 1, they typically extend to the sides of the mounting frame 3, i.e., the sides directly above the mounting frame 3, and then bend downward, specifically to the bottom of the mounting frame 3, to connect to the corresponding modules.

[0046] In this embodiment, the first connecting pipe 41 and the second connecting pipe 42 are arranged in layers, one above the other. This creates a clear layout for the pipes, facilitating easy assembly and maintenance of the different pipes, and improving the utilization of vertical space. In addition to fully utilizing the space, the layered pipe arrangement ensures convenient maintenance and an aesthetically pleasing layout, while minimizing interference between pipes and preventing crossover or collision. Furthermore, this connecting pipe arrangement is adaptable to different vehicle models and can be installed anywhere on the mid-body crossbar, resulting in a high degree of modularity.

[0047] In some embodiments, as Figure 2 As shown, the end of the air storage module 5 in the second direction Y is connected to the second connecting pipe 42. In addition, no joint is provided on the upper part of the air storage cylinder 51, so that the air storage cylinder 51 can be maintained without getting off the vehicle, which is convenient for pipeline maintenance.

[0048] It should be noted that, in the embodiment of the present invention, the first direction X, the second direction Y, and the up-down direction are perpendicular to each other.

[0049] In some embodiments, as Figure 2 As shown, above the mounting frame 3, the first connecting pipelines 41 can extend along the first direction X, and each first connecting pipeline 41 can be arranged in sequence in the second direction Y, for example, evenly arranged. It should be noted that sufficient spacing should be reserved between different first connecting pipelines 41 to ensure the convenience of installation and maintenance. Optionally, all first connecting pipelines 41 can be set on the same layer, specifically, coplanar arrangement. In addition, as Figure 3 As shown, the first connecting pipe 41 can fully utilize the space between the two cross beams of the vehicle body to maximize space utilization.

[0050] In some embodiments, as Figure 1 As shown, the first connecting pipes 41 are all connected to one side of the brake control module 1 close to the air circuit control module 2 in the first direction X, which is convenient for modular installation.

[0051] In some embodiments, in order to achieve a layered arrangement of the second connecting pipeline 42 and the first connecting pipeline 41, the second connecting pipeline 42 may be located in the lower layer or upper layer of the first connecting pipeline 41. Optionally, part of the second connecting pipeline 42 is located in the lower layer of the first connecting pipeline 41, and part of the second connecting pipeline 42 is located in the upper layer of the first connecting pipeline 42.

[0052] It should be noted that the air storage module 5, the brake control module 1 and the air circuit control module 2 used to connect to the pipeline in the pipeline module 4 are lower than the mounting frame 3. The part where the pipeline extends outside the mounting frame 3 can be bent to be connected to other components, or other pipelines can be connected to dock the corresponding modules.

[0053] In some embodiments, as Figure 2 and Figure 4 As shown, the mounting frame 3 includes a base plate 32, with a vertical plate 31 fixed below one end of the base plate 32 in the first direction X, for mounting the air path control module 2. The base plate 32 can specifically be a hollow plate formed by connecting multiple beams. A layered plate 33 is fixed to the base plate 32. Optionally, the layered plate 33 and the vertical plate can be welded or bolted to the base plate 32. Optionally, the layered plate 33 includes an inverted U-shaped plate body, and the two free ends of the inverted U-shaped plate are fixed to the two ends of the base plate 32 in sequence along the second direction Y, so that an installation space is formed between the inverted U-shaped plate and the base plate 32 for the second connecting pipeline 42 and other pipelines to pass through.

[0054] Among them, all the first connecting pipes 41 can be fixed on the top of the layered plates 33 in sequence along the second direction Y, for example, by means of clamp connection, bolt connection, etc. On this basis, to ensure the supporting capacity, multiple layered plates 33 can be arranged in sequence above the bottom plate 32 along the first direction.

[0055] Among them, on the inverted U-shaped layered plate 33, as shown in FIG. Figure 4 As shown, to ensure support capacity, the intermediate plate located above the bottom plate 32 can be a flat plate perpendicular to the vertical direction. This plate has a certain area in the first direction X to ensure stable support for the first connecting pipe 41, and has through holes running through it in the vertical direction to achieve a lightweight effect. In addition, the bottom ends of the side panels at the two free ends of the inverted U-shaped plate body are fixed to the bottom plate 32. In the second direction Y, an intermediate reinforcement plate is also fixed between the two side panels and below the intermediate plate. The bottom end of the intermediate reinforcement plate is fixed to the top surface of the bottom plate 32 to prevent the middle portion of the intermediate plate from bending due to supporting the first connecting pipe 41, effectively preventing deformation of the layered plate 33 and extending the service life of the layered plate 33.

[0056] In addition, for some second connecting pipes 42, one port thereof is connected to the port of the air storage cylinder 51 in the second direction Y, and after the connection, it extends upward to the top of the bottom plate 32, first extending a certain length along the second direction Y on the bottom plate 32 as a first extension portion, and then bending and extending along the first direction X above the bottom plate 32 to form a second extension portion, and then the second extension portion extends to the pneumatic control module 2 so as to be able to connect to the pneumatic control module 2.

[0057] Specifically, if Figure 2 and Figure 4As shown, the base plate 32 includes a first connecting plate 321 extending along a first direction X and a second connecting plate 322 extending along a second direction Y. The two first connecting plates 321 are located at opposite ends of the base plate 32 in the second direction Y, and the second connecting plates 322 are fixed sequentially between the two first connecting plates 321 along the first direction X. In this case, the first extension portion can be fixedly connected to the first connecting plate 321 via a first connector, and the second extension portion can be fixedly connected to one or more second connecting plates 322 via multiple second connectors. This ensures the reliability of the connection of the second connecting pipe 42 to the mounting frame 32 and prevents the second connecting pipe 42 from shaking during travel. The first and second connectors can include clamp structures, which can be used to secure the second connecting pipe 42 to the base plate 32 through the combination of the clamp structures and bolts.

[0058] Alternatively, other second connecting pipes 42 may all extend along the second direction Y above the bottom plate 32 , with one end connected to the air storage cylinder 51 by bending downward, and the other end connected to the side of the air path control module 2 by bending.

[0059] Alternatively, to avoid interference with other second connecting pipelines 42, some of the second connecting pipelines 42 may be partially located below the first connecting pipeline 41, with the remaining portion extending above the first connecting pipeline 41 through the gap between two adjacent first connecting pipelines 41. Optionally, such a second connecting pipeline 42 is specifically connected to the air storage cylinder 51 farthest from the pneumatic control module 2 in the first direction X.

[0060] Specifically, if Figure 4 As shown, in the bottom plate 32, four second connecting plates 322 are arranged between two first connecting plates 321 along the first direction X. Accordingly, a layered plate 33 can be provided on each second connecting plate 322, so that a stable annular structure is formed between the layered plates 33 and the second connecting plates 322 to reliably position the second connecting pipeline 42 on the lower layer.

[0061] Among them, the two second connecting plates 322 located in the middle can be I-shaped plates, and the two first connecting plates 321 have mounting grooves opposite to each other in the second direction Y. The two ends of the second connecting plates 322 are respectively inserted into the mounting grooves opposite to each other in the two first connecting plates 321, and then the ends of the second connecting plates 322 are welded or bolted to the first connecting plates 321 to ensure the reliability of the connection and improve the structural strength. In addition, the remaining two second connecting plates 322 located at the upper ends in the first direction X are fixedly connected to the two first connecting plates 321 to form a frame of a structurally stable rectangular body. In addition, one of the second connecting plates 322 located at the edge in the first direction X is fixedly connected to the vertical plate 31 below to fix the air path control module 2.

[0062] In some embodiments, in order to further improve the regularity of the pipeline arrangement, above the mounting skeleton 3, the first connecting pipeline 41 extends along the first direction X, and the second connecting pipeline 42 extends along the first direction X and / or the second direction Y, so that the pipeline portion above the mounting skeleton 3 is arranged in a criss-cross pipeline arrangement.

[0063] In some embodiments, the first connecting pipeline 41 and / or the second connecting pipeline 42 may be made of aluminum alloy pipelines, which are lightweight, have good corrosion resistance, and are cost-effective.

[0064] In some embodiments, the ports of the first connecting pipeline 41 and / or the second connecting pipeline 42 may adopt a flared structure. The flared structure can tightly combine the pipeline and the interface through flaring deformation, forming a reliable seal, ensuring the firmness of the connection, and having good anti-vibration performance and easy installation.

[0065] During the assembly process, the air path control module 2 and the air storage module 5 are installed on the installation frame 3 and assembled into an integral structure, and then loaded onto the vehicle as a whole, without occupying the vehicle platform, realizing parallel processes and saving operation time.

[0066] Furthermore, if Figure 1 and Figure 2 As shown, the mounting frame 3 has a vertical plate 31 at one end away from the brake control module 1 in the first direction X. The air circuit control module 2 is integrally mounted on the vertical plate 31 and is located on a side of the vertical plate 31 away from the brake control module 1 .

[0067] At this time, the air circuit control module 2 is an integral module that can be integrally installed on the vertical plate 31. In addition, since the air circuit control module 2 is located on the side of the vertical plate 31 away from the brake control module 1, Figure 1 It is located on the left side of the vertical plate 31. In addition to facilitating the direct assembly of the air circuit control module 2 on the exposed surface of the vertical plate 31, it also facilitates the connection between the pipeline and the air circuit control module 2. Taking the first connecting pipeline 41 as an example, after the first connecting pipeline 41 extends to the top of the air circuit control module 2, it can be directly bent downward and connected to the corresponding air circuit interface on the air circuit control module 2. It is easy to operate and has a large assembly space.

[0068] In some embodiments, when the undercar air brake system provided by the embodiments of the present invention is assembled and applied to a rail vehicle, the air circuit control module 2 and the air storage module 5 can be installed on the first side of the vehicle body, and the brake control module 1 can be installed on the second side of the vehicle body.

[0069] In addition, an equipment compartment is provided under the vehicle body. The equipment compartment has a skirt panel, which can be detachable or openable to facilitate the inspection or maintenance of the equipment. The air circuit control module 2, the air storage module 5, and the brake control module 1 can be provided in the equipment compartment to fully utilize the space within the equipment compartment. To ensure the operability and maintainability of the air circuit control module 2 and the brake control module 1, the air circuit control module 2 and the brake control module 1 can face the two opposite skirt panels of the equipment compartment, respectively. The air circuit control module 2 is provided on the side close to the first-side skirt panel, and the brake control device is provided on the side close to the second-side skirt panel.

[0070] In addition, a wire trough is provided at the bottom of the vehicle body, which is used to provide a routing path for the vehicle body electrical circuits, fix and protect the vehicle body electrical circuits, and the air circuit control module 2 is located below the wire trough to fully utilize the equipment compartment space below the wire trough.

[0071] Furthermore, if Figures 5 to 8 As shown, the air circuit control module 2 includes an air circuit board 27 and various air circuit functional components to achieve different functions. In some embodiments, to ensure the functionality and applicability of the air circuit control module 2, the air circuit functional components include a pipe-connected electric plug door 21, a plate-type plug door 22, a relief valve 23, a test head 24, an external air intake rapid structure 25, and a dust filter 26.

[0072] In some embodiments, an intra-plate air channel is opened inside the air circuit plate 27, and the intra-plate air channel forms an air circuit interface on the outer surface of the air circuit plate 27. The intra-plate air channel on the air circuit plate 27 can specifically distribute compressed air and other air sources to corresponding pneumatic components.

[0073] At this time, by setting up the intra-board air duct, the setting of external pipelines required on the air circuit plate 27 can be reduced, and the number of pipelines required on the outside of the air circuit plate 27 can be reduced. The mechanical plug gate, pipe-connected electric plug gate 21, overflow valve 23, external air intake quick structure 25, and test head 24 and other air circuit components in the air circuit control module 2 can directly make full use of the intra-board air duct inside the air circuit plate 27, so that the air duct and air circuit functional components are integrated on the air circuit plate 27, and the air circuit control module 2 is miniaturized and lightweight.

[0074] In some embodiments, the air passages in the plate are provided with at least two layers in the first direction X to fully utilize the space in the air passage plate 27. Figure 5 As shown, in the first direction X, the air passages in the two layers of the plates can be partially staggered. Accordingly, on the same outer surface of the same gas passage plate 27, adjacent gas passage interfaces can be staggered in the first direction X. In addition, to separate the intra-plate air passages in the gas passage plate 27, a partition can be used to prevent gas leakage or cross-contamination between the air passages in different plates.

[0075] In some embodiments, the gas circuit interface includes pipeline interfaces 271 distributed on the top surface of the gas circuit plate 27 and two side surfaces in the second direction Y, which can save gas circuit connection space and facilitate the miniaturization and lightweighting of the gas circuit control module 2. The first direction X, the second direction Y, and the up-down direction are perpendicular to each other.

[0076] Specifically, if Figure 5 As shown, after the pipeline in the pipeline module 4 extends from above the mounting frame 31 to the gas circuit control module 2 along the first direction X, it can be directly bent to directly connect the pipeline to the gas circuit interface on the gas circuit plate 27 .

[0077] In some embodiments, to facilitate the assembly of gas path functional components, such as Figure 1 , Figure 2 and Figure 5 As shown, the surface of the air circuit plate 27 away from the brake control module 1 in the first direction X forms a mounting surface 272, and each air circuit functional component is arranged on the mounting surface 272. Then, when the air circuit plate 27 is installed on the mounting frame 3, the air circuit functional component can also not be blocked by other equipment of the air brake system under the vehicle, thereby increasing the exposure of the air circuit functional component and facilitating the maintenance of the air circuit functional component.

[0078] On mounting surface 272, airway interfaces can be positioned at different locations depending on the installation requirements of the airway components. These interfaces are used to connect the components to the corresponding intra-board airways. For example, utilizing the double-layer intra-board airways in airway plate 27, a mechanical stopper can be installed on airway plate 27 based on the braking principle, and a filter can be installed below airway plate 27 to facilitate maintenance of dust filter 26.

[0079] Because the mounting surface 272 is located on the side facing away from the brake control module 1 in the first direction X, the side surface of the manifold plate 27 opposite the mounting surface 272 is correspondingly adapted to be attached and fixed to the vertical plate 31. Since the functional components of the air path avoid the surface of the manifold plate 27 facing the vertical plate 31, the fit between the manifold plate 27 and the vertical plate 31 is ensured, ensuring the reliability and stability of the connection of the manifold plate 27 to the vertical plate 31.

[0080] Specifically, the edge of the gas manifold plate 27 can be provided with connecting through-holes. For example, four connecting through-holes can be arranged in a matrix pattern. The gas manifold plate 27 is bolted to the vertical plate 31 via the connecting through-holes, making assembly and disassembly easy. To facilitate positioning of the gas manifold plate 27, bolt holes corresponding to the connecting through-holes can be pre-set on the vertical plate 31. By aligning the connecting through-holes with the corresponding bolt holes and then bolting them together, the gas manifold plate 27 is secured to the vertical plate 31.

[0081] Furthermore, the gas circuit functional element includes a pipe-connected electric plug door 21 disposed on the top of the mounting surface 272, and the top structure of the pipe-connected electric plug door 21 protrudes above the gas circuit plate 27. In this case, the top structure of the pipe-connected electric plug door 21 can specifically be its operating handle, so that the mounting frame can be prevented from interfering with the operation of the pipe-connected electric plug door 21 during operation.

[0082] In addition, the pipe-connected electric plug door 21 is connected to the air circuit plate 27 through the elbow structure 28. Through the elbow structure 28, the installation direction requirements of the pipe-connected electric plug door 21 on the mounting surface 272 of the air circuit plate 27 can be adapted, so that the installation direction of the pipe-connected electric plug door 21 on the mounting surface 272 meets its rotation requirements, thereby avoiding the pipe-connected electric plug door 21 from being unable to rotate into place after installation.

[0083] For example, Figure 6 and Figure 8 As shown, the elbow structure 28 includes a flange 283, a connector body 281, and a sealing ring 282. The flange 283 is bolted to the mounting surface 272. The connector body 281 has a curved elbow air passage that connects to the air passage of the gas plate 27 and the pipe-connected electric plug door 21. The elbow air passage can be used to adaptively change the flow direction of the gas to meet the connection requirements between the pipe-connected electric plug door 21 and the plate air passage 271 in the gas plate 27.

[0084] Furthermore, a sealing ring 282 is positioned between the connector body 281 and the pipe-connected electric plug door 21. Specifically, a sealing ring mounting base 284 is fixed to the connector body 281, and the sealing ring 282 is mounted on the sealing ring mounting base 284. The connector body 281 can be manufactured through a welding process to ensure a tight seal within the elbow air passage. Furthermore, a locking nut 285 is provided on the sealing ring mounting base 284. By rotating the locking nut 285, the sealing ring 282 is pressed against the pipe-connected electric plug door 21, ensuring a reliable seal.

[0085] For example, Figure 6 and Figure 8 As shown, in the second direction Y, the two ports of the pipe-connected electric plug door 21 are fixed to the air circuit board 27 through the elbow structure 28 respectively.

[0086] In addition, in order to improve the applicability of the air circuit control module 2 and make it suitable for a variety of different undercarriage air brake systems, when designing the air circuit control module 2, according to the braking principle, the air circuit functional components that need to be operated under the train, have high maintenance frequency, and are near the brake control single device are sorted out, mainly including door valves, external air source valves, sand control valves, pressure switch valves, tread cleaning valves, auxiliary air supply valves, brake control module 1 valves, brake cylinder valves, AS2 valves, AS1 valves, overflow valves 23, test heads, external air intake quick connectors, dust filters 26 and other 16 air circuit functional components; combined with the braking principles of various models, the most complex model is selected to design the air circuit control module 2, so that each model can use the same model of air circuit plate 27, reserved interfaces, and models without related functions use sealing plates to block the reserved interfaces, so that the air circuit plates 27 of the entire train are unified and the degree of modularization is improved.

[0087] In some embodiments, as Figure 5 and Figure 6 As shown, this air circuit control module 2, which can adapt to various vehicle models, includes multiple layers of air circuit functional components arranged sequentially from top to bottom, specifically three layers. The first layer of air circuit functional components includes multiple pipe-connected electric valves 21, specifically three arranged sequentially along the second direction Y; the second layer of air circuit functional components includes multiple plate-type valves 22, specifically six arranged sequentially along the second direction Y; and the third layer of air circuit functional components includes a relief valve 23, a test head 24, a plate-type valve 22, an external air intake rapid structure 25, and a dust filter 26. The air circuit functional components on the air circuit control module 2 are arranged in a relatively regular pattern, facilitating installation.

[0088] Specifically, the pipe-connected electric plug gate 21 can control the on-off of the air circuit through electrical signals; the plate-type plug gate 22 can be used to control the on-off of the air circuit; the overflow valve 23 can automatically release excess gas when the system pressure exceeds the set value, thereby protecting the air circuit plate 27 from damage caused by excessive pressure; the test head 24 can detect and measure the performance of related electrical or pneumatic components; the external air intake quick structure 25 can be used to quickly connect to an external air source; the dust filter 26 can be installed at the air inlet of the air circuit plate to protect the in-board air duct and related air circuit components in the air circuit plate 27.

[0089] Furthermore, for this universal air control module 2, since not all used air functional components or in-board air passages can be utilized, unused air functional components can be removed from the air plate 27 before assembly to the vehicle body, and the corresponding exposed interfaces can be sealed with a sealing plate. Specifically, the sealing plate can be made of metal or plastic and fixed to the air plate 27 with screws. This prevents air leakage through the sealing plate, while maintaining the neatness and safety of the air plate 27 and reducing its weight. Alternatively, the sealing plate 27 can be placed between the air functional components and the corresponding interfaces on the air plate 27.

[0090] The under-vehicle air brake system provided in an embodiment of the present invention includes an air circuit control module 2, an air storage module 5, a mounting frame 3, a connection module, and a brake control module 1. The air circuit control module 2 and the air storage module 5 are installed in pairs with the brake control module 1, and can be installed on the same crossbeam. The middle of the pairing combination is connected by a pipe module 4. When the under-vehicle air brake system is arranged, the pairing combination can be arranged at any position on the middle crossbeam, which is suitable for different vehicle models, so as to achieve a unified structure for each vehicle and realize the maximum modularization of the brake equipment. After the air circuit control module 2 and the air storage module 5 are installed and assembled, they can be installed on the vehicle as a whole without occupying the vehicle platform, thus achieving parallel processes and saving working time.

[0091] In addition to the above-mentioned undercarriage air brake system, the present invention further provides a rail vehicle including an undercarriage air brake system. Specifically, the undercarriage air brake system may be any of the above-mentioned embodiments. For beneficial effects, reference may be made to the above-mentioned embodiments. The structures of other components of the rail vehicle are referenced to the prior art and will not be further described herein.

[0092] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected" to another element, it may be directly connected to the other element or there may be an intermediate element. In addition, in the description of the present invention, unless otherwise specified, "plurality," "plurality," and "plurality of groups" mean two or more.

[0093] Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features referred to.

[0094] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0095] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0096] The above describes in detail the undercar air brake system and rail vehicle provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. An under-vehicle air brake system, characterized in that: include: Install the skeleton (3); A brake control module (1) and the mounting frame (3) are arranged in sequence along a first direction; An air circuit control module (2) is fixed below the mounting frame (3), and in the first direction, the air circuit control module (2) is connected to an end of the mounting frame (3) away from the brake control module (1); The pipeline module (4) comprises a first connecting pipeline (41), wherein the first connecting pipeline (41) is arranged above the mounting frame (3), and both ends of the first connecting pipeline (41) extend downward to respectively connect the brake control module (1) and the air circuit control module (2).

2. The under-vehicle air brake system according to claim 1, characterized in that: It also includes an air storage module (5), which is arranged below the mounting frame (3); The pipeline module (4) further includes a second connecting pipeline (42), the second connecting pipeline (42) being arranged above the mounting frame (3) and arranged in layers with the first connecting pipeline (41) in an up-down direction, with both ends of the second connecting pipeline (42) extending downward to respectively connect to the air path control module (2) and the air storage module (5).

3. The under-vehicle air brake system according to claim 1, characterized in that: The mounting frame (3) has a vertical plate (31) at one end thereof in the first direction away from the brake control module (1); the air path control module (2) is integrally mounted on the vertical plate (31) and is located on a side of the vertical plate (31) away from the brake control module (1).

4. The under-vehicle air brake system according to claim 1, characterized in that: The air circuit control module (2) comprises an air circuit plate (27), an inner-plate air passage is provided inside the air circuit plate (27), and the inner-plate air passage forms an air circuit interface on the outer surface of the air circuit plate (27).

5. The under-vehicle air brake system according to claim 4, characterized in that: The intra-board air channel is provided with at least two layers in the first direction.

6. The under-vehicle air brake system according to claim 4, characterized in that: The gas circuit interface comprises pipeline interfaces (271) distributed on the top surface of the gas circuit plate (27) and on two side surfaces in the second direction; the first direction, the second direction and the up-down direction are perpendicular to each other.

7. The under-vehicle air brake system according to claim 1, characterized in that: The air circuit control module (2) comprises an air circuit plate (27) and a plurality of air circuit functional elements. The surface of the air circuit plate (27) away from the brake control module (1) in the first direction forms a mounting surface (272), and each of the air circuit functional elements is arranged on the mounting surface (272).

8. The under-vehicle air brake system according to claim 7, characterized in that: The gas circuit functional element comprises a pipe-connected electric plug door (21) provided on the top of the mounting surface (272), and the top structure of the pipe-connected electric plug door (21) protrudes above the gas circuit plate (27).

9. The under-vehicle air brake system according to claim 7, characterized in that: The gas circuit functional element includes a pipe-connected electric plug door (21) provided on the mounting surface (272), and the pipe-connected electric plug door (21) is connected to the gas circuit plate (27) via an elbow structure (28), the elbow structure (28) including a flange (283), a joint body (281) and a sealing ring (282), the flange (283) being fixed to the mounting surface (272) by bolts, the joint body (281) having a curved elbow air passage, the elbow air passage being connected to the air passage of the gas circuit plate (27) and the pipe-connected electric plug door (21), and the sealing ring (282) being provided between the joint body (281) and the pipe-connected electric plug door (21).

10. A rail vehicle, characterized in that: The under-vehicle air brake system comprises the under-vehicle air brake system according to any one of claims 1 to 9.

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