A device compartment apron, a vehicle device compartment and a rail vehicle

Abstract

The application discloses a device cabin apron, a vehicle device cabin and a rail vehicle, relates to the technical field of rail transit, and discloses a device cabin apron, a vehicle device cabin and a rail vehicle, which relates to the technical field of rail transit, and the device cabin apron comprises an apron main body and at least two reinforcing beams. Wherein the apron main body is integrally formed of a composite material, the apron main body is provided with at least two apron profile cavities, and a concave groove is formed between the two adjacent apron profile cavities; the at least two reinforcing beams are arranged in the transverse direction of the apron main body at intervals, and the reinforcing beams are connected with the at least two apron profile cavities. The above-mentioned device cabin apron solves the problem that the existing aluminum alloy apron cannot meet the requirements of light weight and performance.

Description

Technical Field

[0001] This application relates to the field of rail transit technology, and in particular to an equipment compartment skirt, a vehicle equipment compartment, and a rail vehicle. Background Technology

[0002] Currently, in order to save interior space and facilitate the installation and configuration of equipment pipelines and lines, rail vehicles (such as urban light rail, passenger trains, EMUs, etc.) are usually equipped with equipment compartments under the vehicle.

[0003] In the existing system, the equipment compartment skirts are made of aluminum alloy, which is relatively heavy. Furthermore, since the wall thickness of the original aluminum alloy profiles for the equipment compartment skirts is already close to the limit of mechanical performance, it is difficult to meet the weight reduction requirements of the top-level specifications by reducing the wall thickness. In addition, the equipment compartment needs to withstand external forces such as aerodynamic fatigue, vibration impact, and foreign object strikes during operation, as well as the corrosive effects of external environments such as high temperature, low temperature, high humidity, acids and alkalis, salt spray, wind, sand, rain, and snow. Local structures within the equipment compartment may be at risk of fatigue failure, impact damage, and corrosion, leading to a series of malfunctions and affecting vehicle operational safety.

[0004] Therefore, how to avoid the inability of existing aluminum alloy skirting panels to simultaneously meet the requirements of lightweighting and performance is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide an equipment compartment skirt, vehicle equipment compartment, and rail vehicle that solves the problem that existing aluminum alloy skirts cannot simultaneously meet the requirements of lightweighting and performance.

[0006] To achieve the above objectives, this application provides an equipment compartment skirt, comprising:

[0007] The skirt board body is a composite material integrally molded structure. The skirt board body is provided with at least two skirt board profile cavities, and a concave groove is formed between two adjacent skirt board profile cavities.

[0008] At least two reinforcing beams are arranged at transverse intervals along the main body of the skirt panel, and the reinforcing beams are connected to the at least two skirt panel profile cavities.

[0009] In some embodiments, the equipment compartment skirt further includes a skirt sealing ring disposed around the periphery of the skirt body. The skirt sealing ring includes two first skirt sealing strips arranged laterally opposite to each other along the skirt body and two second skirt sealing strips arranged longitudinally opposite to each other along the skirt body.

[0010] In some embodiments, the reinforcing beams near the two ends of the skirt body along the lateral direction are respectively provided with a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are respectively used to install two first skirt sealing strips.

[0011] In some embodiments, the skirt profile cavity is provided with sealing structures at both ends along the transverse direction, and the sealing structures are used to seal the openings of the skirt profile cavity.

[0012] In some embodiments, the sealing structure includes:

[0013] A sealing plug, used to be inserted into the skirt profile cavity through the opening of the skirt profile cavity;

[0014] A sealing plate, fixed to the outside of the sealing plug, is used to seal the cavity of the skirt profile.

[0015] In some embodiments, the reinforcing beam includes a beam body and fins disposed on both sides of the beam body, wherein the beam body and the fins on both sides are combined to form a Z-shaped beam adapted to the shape of the skirt body.

[0016] In some embodiments, the skirt body is an arc-shaped skirt structure formed by pultrusion of composite materials, and at least two reinforcing beams are uniformly arranged in the transverse direction on the inner arc surface of the skirt body, and the curvature of the reinforcing beams is adapted to the curvature of the skirt body.

[0017] In some embodiments, the number of reinforcing beams is greater than or equal to the number of skirt profile cavities; and / or

[0018] The skirt panel body is provided with at least one inspection port, and the inspection port is provided with a removable cover plate; and / or

[0019] The skirt panel body has connectors at both ends along its longitudinal direction.

[0020] This application also provides a vehicle equipment compartment, including any of the aforementioned fixed skirts.

[0021] This application also provides a rail vehicle including the vehicle equipment compartment of any of the above.

[0022] Compared to the aforementioned background technology, the equipment compartment skirt provided in this application embodiment includes a skirt body and at least two reinforcing beams. The skirt body is a one-piece molded composite material structure, and the skirt body has at least two skirt profile cavities, with a concave groove formed between adjacent skirt profile cavities. The at least two reinforcing beams are arranged laterally at intervals along the skirt body, and the reinforcing beams are connected to the at least two skirt profile cavities.

[0023] The beneficial effects of this equipment compartment skirt design mainly include:

[0024] Firstly, because the main body of the skirt panel is a one-piece molded composite material structure, this structure has a lighter weight and higher strength and rigidity compared to traditional spliced ​​or split aluminum alloy skirt panel structures. Specifically, the one-piece molded composite material can evenly distribute stress throughout the entire skirt panel body, reducing stress concentration problems caused by weak joints. As a result, during train operation, the skirt panel can better withstand various external forces such as aerodynamic fatigue, vibration impact, and foreign object impact, reducing the risk of skirt panel deformation or damage. Thus, the skirt panel meets the requirements of lightweight, performance, and service life.

[0025] Secondly, by forming concave grooves between two adjacent skirt panel profile cavities, this type of skirt panel main structure significantly reduces the wall thickness of the skirt panel body compared to the traditional continuous skirt panel profile cavity design, resulting in a lighter weight. At the same time, forming concave grooves between two adjacent skirt panel profile cavities not only provides installation space for reinforcing beams but also further disperses stress to a certain extent, avoiding stress concentration and further improving the structural stability of the skirt panel.

[0026] Third, by setting at least two reinforcing beams on the main body of the skirt panel, and by setting the reinforcing beams at transverse intervals along the main body of the skirt panel and connecting them with the skirt panel profile cavity, the structural strength and deformation resistance of the main body of the skirt panel can be significantly enhanced. This design can effectively prevent the skirt panel from deforming or being damaged by external forces (such as vibration and impact) during operation, thereby improving the overall stability of the equipment compartment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a front view of the equipment compartment skirt in an embodiment of this application.

[0029] Figure 2 This is a side view of the equipment compartment skirt in an embodiment of this application.

[0030] Figure 3 for Figure 2 The diagram shows the structural schematic of the sealing structure in the cavity of the skirt panel profile.

[0031] in:

[0032] 10-Skirt panel body, 11-Skirt panel profile cavity, 12-Concave groove;

[0033] 20-Reinforcing beam, 21-Beam body, 22-Flange;

[0034] 30 - First connector;

[0035] 40 - Second connector;

[0036] 50 - Sealing structure, 51 - Sealing plug, 52 - Sealing plate. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a front view of the equipment compartment skirt in an embodiment of this application. Figure 2 This is a side view of the equipment compartment skirt in an embodiment of this application. Figure 3 for Figure 2 The diagram shows the structural schematic of the sealing structure in the cavity of the skirt panel profile.

[0041] The equipment compartment skirt provided in this application embodiment includes a skirt body 10 and at least two reinforcing beams 20.

[0042] The skirt panel body 10 is a one-piece structure made of composite materials. For example, the skirt panel body 10 can be made of carbon fiber (or glass fiber) material through pultrusion molding. Carbon fiber (or glass fiber) material has high strength, low density, good corrosion resistance, and fatigue resistance. In this way, the use of composite materials can not only reduce the weight of the skirt panel, achieving a weight reduction of 30% compared to the original aluminum alloy fixed skirt panel, but also improve the service life of the skirt panel body 10 and reduce the production cost of the skirt panel body 10.

[0043] Specifically, the equipment compartment skirt has a uniform cross-section along the vehicle's length. Considering the characteristics of composite material molding processes, pultrusion is selected for the main structure of the skirt (10). T700 grade multiaxial carbon fiber fabric and epoxy resin are used for pultrusion molding via a mold, enabling automated and low-cost production of the skirt profile. In this way, a continuous composite material skirt profile is obtained through pultrusion, and the required length of skirt profile is cut according to a modular structure.

[0044] The main body 10 of the skirt panel has at least two skirt panel profile cavities 11, and a concave groove 12 is formed between two adjacent skirt panel profile cavities 11. Compared with aluminum alloy skirt panel profiles, the composite material skirt panel structure reduces the number of skirt panel profile cavities 11, achieving the effect of overall structural lightweighting.

[0045] At least two reinforcing beams 20 are arranged at a lateral interval along the main body of the skirt panel 10, and the reinforcing beams 20 are connected to at least two skirt panel profile cavities 11. For example, at least two reinforcing beams 20 can be fixed to at least two skirt panel profile cavities 11 at a lateral interval along the main body of the skirt panel 10 by means of adhesive riveting.

[0046] The beneficial effects of this equipment compartment skirt design mainly include:

[0047] Firstly, because the main body 10 of the skirt panel is a one-piece molded composite material structure, this structure has a lighter weight, higher strength, and higher rigidity compared to traditional spliced ​​or split aluminum alloy skirt panel structures. Specifically, the one-piece molded composite material can evenly distribute stress throughout the entire main body 10 of the skirt panel, reducing stress concentration problems caused by weak connection points. As a result, during train operation, the skirt panel can better withstand various external forces such as aerodynamic fatigue, vibration impact, and foreign object impact, reducing the risk of deformation or damage to the skirt panel. Thus, the skirt panel meets the requirements of lightweight, performance, and service life.

[0048] Secondly, by forming a concave groove 12 between two adjacent skirt panel profile cavities 11, this skirt panel body 10 structure significantly reduces the wall thickness compared to the traditional continuous skirt panel profile cavity 11, resulting in a lighter weight. Simultaneously, forming the concave groove 12 between two adjacent skirt panel profile cavities 11 not only provides installation space for the reinforcing beam 20 but also further disperses stress to a certain extent, preventing stress concentration and further improving the structural stability of the skirt panel.

[0049] Third, by setting at least two reinforcing beams 20 on the main body 10 of the skirt panel, and the reinforcing beams 20 are set at transverse intervals along the main body 10 of the skirt panel and connected to the skirt panel profile cavity 11, the structural strength and deformation resistance of the main body 10 of the skirt panel can be significantly enhanced. Such a design can effectively prevent the skirt panel from being deformed or damaged by external forces (such as vibration and impact) during operation, thereby improving the overall stability of the equipment compartment.

[0050] In order to seal the gap between the equipment compartment skirt and the equipment compartment after the equipment compartment skirt is installed, the equipment compartment skirt also includes a skirt sealing ring provided on the skirt body 10.

[0051] In some embodiments, the skirt sealing ring is disposed around the periphery of the skirt body 10, and the skirt sealing ring includes two first skirt sealing strips arranged laterally opposite to each other along the skirt body 10 and two second skirt sealing strips arranged longitudinally opposite to each other along the skirt body 10.

[0052] As can be seen, by setting a skirt sealing ring around the perimeter of the skirt body 10, and the skirt sealing ring consisting of two transverse first skirt sealing strips and two longitudinal second skirt sealing strips, this all-around layout allows the sealing ring to completely cover the gap between the equipment compartment skirt and the equipment compartment. This effectively prevents external dust, moisture, and other impurities from entering the equipment compartment from all directions, thus protecting the precision equipment inside from corrosion or damage.

[0053] Using two opposing sealing strips (a first skirt sealing strip and a second skirt sealing strip) increases the redundancy of the seal. This means that even if one sealing strip experiences slight wear or deformation during long-term use, the opposing sealing strip can still provide a certain level of sealing. Compared to a single sealing strip design, this dual-seal strip structure significantly improves the reliability of the sealing system.

[0054] Furthermore, the aforementioned arrangement of the skirt sealing rings ensures a more even distribution of force on the skirt body 10 after installation. Specifically, when the equipment compartment skirt is subjected to external pressure (such as wind pressure or vibrations generated during equipment operation), the four sealing strips can evenly distribute the pressure to various parts of the skirt body 10. This design helps reduce excessive localized stress on the skirt body 10, thereby preventing deformation or damage. For example, on high-speed rail vehicles, the operation generates significant air resistance and vibration; this sealing ring arrangement effectively protects the structure of the skirt body 10. In addition, the presence of the four sealing strips increases the contact area and friction between the skirt body 10 and the equipment compartment to some extent. This increased friction prevents the skirt body 10 from loosening or shifting within the equipment compartment, especially when vibrations occur during equipment operation inside the compartment. This stable connection ensures the equipment compartment skirt remains in the correct position, maintaining its sealing function.

[0055] In some embodiments, the reinforcing beams 20 near the two ends of the skirt body 10 along the lateral direction are respectively provided with a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are respectively used to install two first skirt sealing strips.

[0056] This design ensures highly precise installation of the two first skirt panel sealing strips. This precise installation allows the sealing strips to better fit the gap between the equipment compartment skirt and the equipment compartment, thereby improving sealing performance. Simultaneously, the mounting surface design provides stable support for the sealing strips. Since the sealing strips may be affected by external pressures (such as air pressure changes, vibrations, etc.) during use, the mounting surface ensures that the sealing strips maintain a good seal under these external forces, preventing displacement or deformation.

[0057] It is important to note that the reinforcing beam 20 is designed to enhance the structural strength of the skirt panel body 10. By installing a sealing strip on the reinforcing beam 20 with an mounting surface, not only is a sealing function achieved, but the structural advantages of the reinforcing beam 20 are also further utilized. Simultaneously, the installed sealing strip can also conceal the connection points on the corresponding mounting surface, improving the cleanliness of the skirt panel's appearance.

[0058] In some embodiments, the skirt profile cavity 11 is provided with sealing structures 50 at both ends along the lateral direction, and the sealing structures 50 are used to seal the cavity opening of the skirt profile cavity 11.

[0059] As can be seen, the sealing structure 50 is located at both ends of the skirt profile cavity 11 along the transverse direction. The sealing structure 50 is used to block the cavity openings at both ends of the skirt profile cavity 11 along the transverse direction, thereby achieving the purpose of sealing the inner cavity of the skirt profile cavity 11 together with the skirt profile cavity 11.

[0060] In this embodiment, the sealing structure 50 includes a sealing plug 51 and a sealing plate 52. The sealing plug 51 is inserted into the skirt profile cavity 11 through the cavity opening of the skirt profile cavity 11, and the sealing plate 52 is fixed to the outside of the sealing plug 51 to seal the skirt profile cavity 11.

[0061] In this way, the combination of sealing plug 51 and sealing plate 52 forms a double sealing structure. Sealing plug 51 can tightly fill the cavity opening of skirt profile cavity 11, preventing dust, moisture or other impurities from entering the cavity; while sealing plate 52 is further fixed to the outside of sealing plug 51, providing additional sealing protection and ensuring that the cavity opening is completely sealed. This double sealing design is more reliable than a single sealing method and can effectively prevent the influence of the external environment on the internal structure.

[0062] It should be noted that the sealing plug 51 typically possesses a certain degree of elasticity, enabling it to adapt to minor shape changes in the cavity opening. For example, the sealing plug 51 can be a foam sealing plug 51, specifically made by applying structural adhesive to foam material and inserting it into the skirt panel profile cavity 11. The foam sealing plug 51 not only possesses elasticity but also a certain degree of water absorption. Thus, even if the cavity opening has manufacturing tolerances or irregular shapes, the sealing plug 51 can still tightly conform to the inner wall of the cavity opening through its own elastic deformation, thereby achieving a good sealing effect.

[0063] Furthermore, resin-mixed chopped fibers can be evenly coated on the outside of the foam sealing plug 51. Once the resin has cured, the profile cavity can be sealed to prevent moisture from penetrating into the profile cavity of the composite material.

[0064] The sealing plate 52 is fixed to the outside of the sealing plug 51, which not only provides a sealing function, but also enhances the strength of the entire sealing structure 50, ensuring that it will not shift due to external forces or vibrations. This design makes the sealing structure 50 more stable and able to withstand certain external forces, such as vibrations or impacts that may occur during the operation of rail vehicles. The fixing effect of the sealing plate 52 can prevent the sealing plug 51 from being accidentally squeezed out or damaged during use.

[0065] Of course, depending on actual needs, the sealing plate 52 can be made of metal (such as aluminum plate) or plastic (such as plastic plate), or it can be replaced with a plate of other materials or sealed with resin blocks.

[0066] During assembly, at one end of the skirt panel profile cavity 11 along the transverse direction, sealing plugs 51 are first bonded to the inner side of each cavity opening. Then, sealing plates 52 (which can be thin aluminum plates) are fixed to the outer side of each sealing plug 51 by bonding. The sealing method is the same at the other end of the skirt panel profile cavity 11 along the transverse direction. In this way, the transverse end of the skirt panel can be sealed to prevent water and other impurities from entering the profile cavity.

[0067] In addition, at least two openings of the skirt profile cavity 11 are provided with grooves, and the sealing plate 52 is fixed in the grooves so that the sealing plate 52 does not protrude from the skirt profile cavity 11.

[0068] For example, the depth of the groove can be the same as the thickness of the sealing plate 52, so that after the sealing plate 52 is installed, the outer surface of the sealing plate 52 is flush with the outer wall of the skirt profile cavity 11.

[0069] This design ensures that the sealing plate 52, after installation, is flush with the outer wall of the skirt profile cavity 11, resulting in a smooth and even overall appearance of the skirt and preventing unevenness caused by the protruding thickness of the sealing plate 52. Furthermore, during high-speed operation of the rail vehicle, the smooth outer surface of the skirt helps reduce air resistance and airflow noise. If the outer plane of the sealing plate 52 is not flush with the outer wall of the skirt profile cavity 11 after installation, airflow vortices and noise may be generated during vehicle operation, affecting the vehicle's aerodynamic performance. The flush design allows airflow to pass more smoothly over the skirt surface, reducing air resistance and thus improving train operating efficiency and comfort.

[0070] In addition, when the sealing plate 52 is installed flush with the outer wall of the skirt profile cavity 11, it can achieve a better sealing effect and prevent dust, water and other impurities from entering the cavity through the gap between the sealing plate 52 and the skirt profile cavity 11.

[0071] In some embodiments, the reinforcing beam 20 includes a beam body 21 and fins 22 disposed on both sides of the beam body 21. The beam body 21 and the fins 22 on both sides are combined to form a Z-shaped beam that matches the shape of the skirt body 10. Of course, the reinforcing beam 20 can be formed by laying T300 / T700 grade epoxy fabric prepreg and curing it using an autoclave process.

[0072] Understandably, the shape of the Z-beam is similar to that of an I-beam, and this structure possesses high bending strength mechanically. Specifically, the beam body 21, as the main load-bearing component, has wings 22 on both sides that effectively disperse and transfer stress, enabling the entire reinforcing beam 20 to better resist bending deformation under load. For example, when the equipment compartment skirt is subjected to external forces (such as vibration, impact, or its own weight), the Z-beam provides sufficient support to prevent deformation or damage to the skirt body 10. Simultaneously, the wing plates 22 on both sides of the beam body 21 also increase the torsional stiffness of the reinforcing beam 20. In practical applications, the equipment compartment skirt is subjected to moments in various directions, and the Z-beam structure effectively resists these moments, maintaining structural stability. For example, during the operation of rail vehicles, the equipment compartment skirt is subjected to torsional moments caused by lateral wind forces or track irregularities; the Z-beam effectively resists these moments, ensuring the stability of the skirt body 10.

[0073] Furthermore, the Z-shaped beam structure allows for more efficient material utilization compared to solid beams or simple rectangular beams. This combination of beam 21 and fin 22 reduces material usage while maintaining strength, thus achieving a lightweight design.

[0074] In some embodiments, the skirt body 10 is an arc-shaped skirt structure formed by pultrusion of composite material, and at least two reinforcing beams 20 are uniformly arranged in the transverse direction on the inner arc surface of the skirt body 10, and the curvature of the reinforcing beams 20 is adapted to the curvature of the skirt body 10.

[0075] The curved skirt structure itself has excellent streamlined characteristics, which reduces air resistance and improves equipment operating efficiency. Meanwhile, the adaptive design of the reinforcing beam 20 further optimizes this streamlined characteristic, achieving a good balance between function and appearance for the entire skirt.

[0076] Due to the tight fit and uniform distribution of the reinforcing beams 20 and the main skirt panel 10, the entire structure can better resist various external forces during long-term use, reducing the failure rate. This design significantly improves the reliability of the equipment and reduces maintenance costs.

[0077] In this embodiment, the number of reinforcing beams 20 can be set to be greater than or equal to the number of skirt panel profile cavities 11. For example, there are three skirt panel profile cavities 11, which are arranged at intervals along the longitudinal direction of the skirt panel body 10 and are respectively located at the upper, middle, and lower positions of the skirt panel body 10. The reinforcing beams 20 are fixed to the skirt panel profile cavities 11 at the upper, middle, and lower positions of the skirt panel body 10 by means of adhesive riveting, and concave grooves 12 are provided between two adjacent skirt panel profile cavities 11.

[0078] The concave groove 12 between adjacent profile cavities can be used for wiring, installation of auxiliary components, etc. This design further optimizes the internal space utilization of the skirt body 10, enabling it to meet more functional requirements.

[0079] It should be noted that the curvature of the reinforcing beam 20 matches that of the skirt panel body 10. This design allows the reinforcing beam 20 to better conform to the inner curved surface of the skirt panel body 10, thereby providing more effective support. The close fit between the reinforcing beam 20 and the skirt panel body 10 ensures more efficient force transmission between them, further enhancing the stability of the overall structure.

[0080] In some embodiments, the skirt body 10 is provided with at least one access port, and the access port is provided with a removable cover.

[0081] The presence of access ports allows maintenance personnel to quickly and easily enter the skirt panel body 10 for inspection and repair without removing the entire skirt panel or performing complex disassembly operations, significantly saving time and labor costs. For example, in rail transit equipment compartments, access ports allow technicians to quickly inspect electrical equipment, sensors, and other components. The number, location, and size of access ports can be adjusted according to the specific needs of the equipment. For instance, near some undercarriage equipment or pipelines, the skirt panel body 10 is equipped with ventilation devices, inspection doors, observation windows, footrests, and other functions, as well as access ports.

[0082] The removable cover design makes opening and closing the access panel very convenient. Specifically, maintenance personnel can quickly open the cover for maintenance and then quickly restore it to a sealed state after maintenance is completed. This significantly reduces equipment downtime and improves equipment availability and operating efficiency.

[0083] In some embodiments, the skirt body 10 is provided with connectors at both ends along the longitudinal direction.

[0084] In this embodiment, a first connector 30 is provided at one end of the skirt panel body 10 along the longitudinal direction. The first connector 30 is connected and fixed to the side beam of the vehicle body. A second connector 40 is provided at the other end of the skirt panel body 10 along the longitudinal direction. The second connector 40 is connected and fixed to the side beam of the frame.

[0085] In summary, the equipment compartment skirt provided in this embodiment uses composite material profiles. Composite material profiles possess high strength, low density, good corrosion resistance, and fatigue resistance. Compared to traditional spliced ​​or split aluminum alloy skirt structures, they offer lighter weight, higher strength, and higher rigidity. This allows for a reduction in the number of profile cavities by leveraging the mechanical properties of composite materials, building upon the original multi-cavity aluminum alloy profile structure, thus achieving overall structural lightweighting. Furthermore, considering the uniform cross-section characteristic of the equipment compartment skirt along its length and the characteristics of composite material molding processes, the pultrusion process is used for the overall molding of the skirt body 10 structure, enabling automated and low-cost production of the skirt profile. Simultaneously, by forming concave grooves 12 between adjacent skirt profile cavities 11, this skirt body 10 structure significantly reduces the wall thickness compared to traditionally continuous skirt profile cavities 11, resulting in lighter weight. At the same time, forming concave grooves 12 between adjacent skirt profile cavities 11 not only provides installation space for the reinforcing beams 20 but also further disperses stress to a certain extent, preventing stress concentration and further improving the structural stability of the skirt. In addition, by setting at least two reinforcing beams 20 on the main body 10 of the skirt panel, and the reinforcing beams 20 are set at intervals along the lateral side of the main body 10 of the skirt panel and connected to the skirt panel profile cavity 11, the structural strength and deformation resistance of the main body 10 of the skirt panel can be significantly enhanced. This design can effectively prevent the skirt panel from being deformed or damaged by external forces (such as vibration and impact) during operation, thereby improving the overall stability of the equipment compartment.

[0086] The vehicle equipment compartment provided in this application includes the equipment compartment skirt described in the above specific embodiments.

[0087] The rail vehicle provided in this application includes the vehicle equipment compartment described in the above specific embodiments.

[0088] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0089] The equipment compartment skirt, vehicle equipment compartment, and rail vehicle provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An equipment cabin apron characterized by, include: The skirt board body is a composite material integrally molded structure. The skirt board body is provided with at least two skirt board profile cavities, and a concave groove is formed between two adjacent skirt board profile cavities. At least two reinforcing beams are arranged at transverse intervals along the main body of the skirt panel, and the reinforcing beams are connected to the at least two skirt panel profile cavities.

2. The equipment bay skirt of claim 1, wherein, The equipment compartment skirt also includes a skirt sealing ring, which is disposed around the periphery of the skirt body. The skirt sealing ring includes two first skirt sealing strips arranged laterally opposite to each other along the skirt body and two second skirt sealing strips arranged longitudinally opposite to each other along the skirt body.

3. The equipment compartment skirt as described in claim 2, characterized in that, The reinforcing beams near the two ends of the main body of the skirt panel are respectively provided with a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are respectively used to install two first skirt panel sealing strips.

4. The equipment compartment skirt as described in claim 1, characterized in that, The skirt panel profile cavity is provided with sealing structures at both ends along the transverse direction. The sealing structures are used to seal the openings of the skirt panel profile cavity.

5. The equipment compartment skirt as described in claim 4, characterized in that, The sealing structure includes: A sealing plug, used to be inserted into the skirt profile cavity through the opening of the skirt profile cavity; A sealing plate, fixed to the outside of the sealing plug, is used to seal the cavity of the skirt profile.

6. The equipment compartment skirt as described in any one of claims 1-5, characterized in that, The reinforcing beam includes a beam body and fins on both sides of the beam body. The beam body and the fins on both sides are combined to form a Z-shaped beam that matches the shape of the main body of the skirt panel.

7. The equipment compartment skirt as described in any one of claims 1-5, characterized in that, The main body of the skirt panel is an arc-shaped skirt panel structure formed by pultrusion of composite materials. At least two reinforcing beams are evenly arranged in the transverse direction on the inner arc surface of the main body of the skirt panel, and the curvature of the reinforcing beams is adapted to the curvature of the main body of the skirt panel.

8. The equipment compartment skirt as described in any one of claims 1-5, characterized in that, The number of reinforcing beams is greater than or equal to the number of cavities in the skirt panel profile; and / or The skirt panel body is provided with at least one inspection port, and the inspection port is provided with a removable cover plate; and / or The skirt panel body has connectors at both ends along its longitudinal direction.

9. A vehicle equipment compartment, characterized in that, Includes the equipment compartment skirt as described in any one of claims 1-8.

10. A rail vehicle, characterized in that, Includes the vehicle equipment compartment as described in claim 9.

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