Tail vortex generator and train

Abstract

The embodiment of the application provides a tail vortex spoiler device and a train, and relates to the technical field of high-speed trains.The device comprises a vehicle shell and a spoiler assembly, the vehicle shell is provided with a mounting groove, the spoiler assembly comprises a spoiler, a folding frame and a first driving element, the spoiler is foldably arranged on the folding frame, the folding frame is connected with the vehicle shell, and the first driving element is connected with the folding frame; the first driving element is configured to drive the folding frame to unfold and fold, so that the spoiler unfolds and extends out of the mounting groove or folds into the mounting groove following the folding frame. The tail vortex spoiler device of the embodiment of the application simplifies the overall structure of the device, reduces the demand for the space arranged below the roof, and reduces the arrangement difficulty of the spoiler device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-speed trains, and in particular to a tail vortex spoiler device and a train. BACKGROUND

[0002] When a train runs fast on a line, a pair of counter-rotating longitudinal vortices will be formed at the tail of the train, which directly affects the surface pressure distribution of the tail car streamline area and easily causes the tail car to shake violently, affecting the comfort of passengers and the stability of train operation.

[0003] In related technologies, an even number of spoiler devices are symmetrically arranged at the tail of the train to improve the shaking condition of the tail car of the high-speed train. However, the spoiler device is raised or retracted by a sliding control mechanism, which requires a large arrangement space below the roof of the train and increases the arrangement difficulty. SUMMARY

[0004] The present application provides a tail vortex spoiler device and a train, which reduces the use space of the tail vortex spoiler device and thus reduces the arrangement difficulty of the tail vortex spoiler device.

[0005] In one aspect, the present application provides a tail vortex spoiler device, comprising:

[0006] A vehicle shell, the vehicle shell is provided with a mounting groove;

[0007] A spoiler assembly, the spoiler assembly comprises a spoiler, a folding frame and a first driving member, the spoiler is foldably arranged on the folding frame, the folding frame is connected with the vehicle shell, and the first driving member is connected with the folding frame;

[0008] The first driving member is configured to drive the folding frame to unfold and fold, so that the spoiler unfolds and extends out of the mounting groove or folds into the mounting groove following the folding frame.

[0009] In some optional embodiments, the folding frame comprises a fixing member and at least two folding rods, the fixing member is fixedly connected with the vehicle shell, the at least two folding rods are arranged in parallel and spaced apart on the fixing member, and are movably connected with the fixing member;

[0010] The spoiler is fixedly arranged on the at least two folding rods, and the spoiler has a fixed end which is fixedly connected with the fixing member.

[0011] In some optional embodiments, the folding rods are hingedly connected with the fixing member, and the at least two folding rods can rotate relative to the fixing member towards the slot opening of the mounting groove, so that the spoiler unfolds in a direction away from the fixed end.

[0012] In some alternative embodiments, the folding frame further comprises a linkage, the at least two folding rods are hingedly connected to the linkage, and the output of the first driving member is connected to one of the at least two folding rods so as to enable the at least two folding rods to rotate synchronously.

[0013] In some alternative embodiments, the fixing member is provided with a first guide slot in the rotating direction of the folding rod, and the folding rod is guided by the first guide slot; and / or, in the rotating direction of the folding rod, the fixing member is provided with a limiting portion on the side close to the fixed end, and the at least two folding rods can be folded on the limiting portion.

[0014] In some alternative embodiments, in the arrangement direction of the at least two folding rods, the folding rod away from the fixed end is provided with a sealing surface matching the outer surface of the vehicle shell, wherein the sealing surface covers the slot opening of the mounting slot when the folding frame is folded.

[0015] In some alternative embodiments, the tail vortex spoiler further comprises a limiting component, the limiting component comprises a limiting piece and a second driving member, the limiting piece is hingedly connected to the slot edge of the mounting slot, the second driving member is connected to the limiting piece, and the second driving member can drive the limiting piece to rotate relative to the slot edge of the mounting slot so as to enable the limiting piece to at least partially cover the slot opening of the mounting slot.

[0016] In some alternative embodiments, the limiting piece comprises a limiting plate and a connecting seat, the limiting plate is connected to the connecting seat, the slot edge of the mounting slot is provided with a second guide slot extending in the rotating direction of the limiting piece, and the connecting seat is hingedly connected to the second guide slot.

[0017] In some alternative embodiments, the slot edge of the mounting slot is provided with a limiting step on the side close to the slot opening, wherein the limiting piece is limited by the limiting step when the limiting piece covers the slot opening of the mounting slot.

[0018] In another aspect, the present application provides a train comprising a train body and the above-mentioned tail vortex spoiler, and the tail vortex spoiler is arranged on the train body.

[0019] The application provides a train and a tail vortex flow disturbing device. The tail vortex flow disturbing device drives the folding frame to unfold and fold through a first driving member, so that the flow disturbing member can unfold and extend out of the mounting slot along with the folding frame, so as to change the airflow flow state. The flow disturbing member can fold into the mounting slot along with the folding frame, effectively reducing the occupied space of the flow disturbing assembly when not in use, so that the whole device is more compact, and the requirement for the space arranged below the train roof is reduced. Therefore, the tail vortex flow disturbing device of the embodiment of the application simplifies the overall structure of the device and reduces the manufacturing cost. At the same time, since the requirement for the space arranged below the roof is reduced, the arrangement difficulty of the flow disturbing device is also reduced, and the overall manufacturing cost of the train is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0021] Figure 1 A schematic view of a train body structure of the tail vortex flow disturbing device is provided for the embodiment of the application.

[0022] Figure 2 A schematic view of a partial structure of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 1

[0023] Figure 3 A side view of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 2

[0024] Figure 4 A schematic view of the flow disturbing member in an unfolded state of the tail vortex flow disturbing device is provided for the embodiment of the application.

[0025] Figure 5 A schematic view of the flow disturbing member in a folded state of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 4

[0026] A schematic view of the flow disturbing assembly in an unfolded state of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 6

[0027] A schematic view of the flow disturbing assembly in a folded state of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 7 Figure 6 A schematic view of the limiting component of the tail vortex flow disturbing device is provided for the embodiment of the application.

[0028] Figure 8 A schematic view of another working state of the limiting component of the tail vortex flow disturbing device is provided for the embodiment of the application.

[0029] Figure 9 Figure 8 A schematic view of another working state of the limiting component of the tail vortex flow disturbing device is provided for the embodiment of the application.

[0030] Figure 10 A schematic view of another working state of the limiting component of the tail vortex flow disturbing device is provided for the embodiment of the application. Figure 8 ​​​​A structural schematic view of the limiting assembly.

[0031] Explanation of reference numerals:

[0032] 100 - vehicle body; 110 - mounting groove; 111 - second guide groove; 112 - limiting step;

[0033] 200 - spoiler assembly; 210 - spoiler; 211 - fixed end; 220 - folding frame; 221 - fixing member; 221a - limiting portion; 221b - first guide groove; 222 - folding rod; 222a - sealing surface; 223 - linkage; 230 - first driving member;

[0034] 300 - limiting assembly; 310 - limiting member; 311 - limiting plate; 312 - connecting seat; 320 - second driving member.

[0035] The specific embodiments have been shown and described in the foregoing drawings and specification, it is to be understood that the application is not limited to the embodiments disclosed, but instead can be practiced with the scope of the claims. It is intended to cover any adaptations or variations of the present application. DETAILED DESCRIPTION

[0036] The exemplary embodiments will be described in detail herein with reference to the drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, and the various embodiments are not intended to limit the application to a particular embodiment. Rather, the exemplary embodiments are intended to illustrate the application in a manner that allows one of ordinary skill in the art to make and use the application.

[0037] The terms "first", "second", "third", "fourth" and the like in the description and in the claims, where they occur, are used as labels for the necessity of distinguishing between similar objects, and do not necessarily indicate a particular order or sequence. It should be understood that the use of the word "about" with respect to a given numerical value specifiy a range of values that fall within 20% of the given value.

[0038] In the embodiments of the present application, the words "exemplary" and "for example" are used to mean example, by way of illustration, or by way of example. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Rather, the use of the words "exemplary" or "for example" is intended to present the relevant concept in a specific manner.

[0039] When the train travels fast on the line, a pair of counter-rotating longitudinal vortices is formed at the tail of the train. The pair of counter-rotating vortices not only changes the air flow pattern in the streamline area of the tail car, but also directly affects the surface pressure distribution in the area, making the tail car prone to severe shaking, which adversely affects the smoothness of the train operation and the riding experience of passengers. In the related art, an even number of turbulence devices capable of changing the air flow structure of the tail are symmetrically arranged at the tail of the train, thereby reducing or eliminating the shaking phenomenon of the tail car caused by the counter-rotating vortices.

[0040] However, these turbulence devices realize the rising or shrinking of the vortex generator through a sliding control mechanism, which not only increases the complexity of the system, but also has high space arrangement requirements, thereby increasing the difficulty and cost of train design.

[0041] The tail vortex turbulence device and the train provided by the present application aim to solve the above technical problems of the prior art.

[0042] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0043] Please refer to Figures 1 to 3 The tail vortex turbulence device provided by the embodiments of the present application is applied to the tail of the train, and the turbulence assembly 200 has an even number and is symmetrically arranged on both sides of the streamline area of the tail shell 100.

[0044] The tail vortex turbulence device comprises a shell 100 and a turbulence assembly 200. The shell 100 is provided with a mounting groove 110, and the turbulence assembly 200 is arranged in the mounting groove 110. The turbulence assembly 200 comprises a turbulence piece 210, a folding frame 220 and a first driving piece 230, the turbulence piece 210 is foldably arranged on the folding frame 220, the folding frame 220 is connected with the shell 100, and the first driving piece 230 is connected with the folding frame 220; the first driving piece 230 is configured to drive the folding frame 220 to unfold and fold, so that the turbulence piece 210 unfolds and extends out of the mounting groove 110 or folds into the mounting groove 110 following the folding frame 220.

[0045] The shell 100 is the outer shell of the train, and the surface thereof is provided with the mounting groove 110 for mounting and accommodating the turbulence assembly 200.

[0046] The turbulence piece 210 changes the flow state of the air flow and guides the air flow to flow along a specific path, thereby reducing the generation of the tail vortex. It can be understood that the turbulence piece 210 has a certain flexibility and can be unfolded and folded. The folding frame 220 is fixedly connected with the shell 100 as a support structure of the turbulence piece 210. Please refer toFigure 4 and Figure 5 The folding frame 220 can drive the spoiler 210 to move synchronously through the folding and unfolding actions of the folding frame 220, so that the spoiler 210 can be unfolded when needed and can be compactly folded when not needed.

[0047] The first driving member 230 is connected with the folding frame 220 and is used to provide the power required for unfolding and folding the folding frame 220. By controlling the start and stop of the first driving member 230, flexible control of the spoiler assembly 200 can be achieved to adapt to different operating conditions and requirements.

[0048] Exemplarily, the spoiler 210 is made of a light and high-strength material and can resist the action of high-speed airflow without being easily deformed. For example, the spoiler 210 is a membrane structure, and when the spoiler 210 is unfolded to the maximum extent, the spoiler 210 is in a taut state, so that the spoiler 210 forms a semi-rigid spoiler plate to achieve the purpose of disturbing the airflow.

[0049] The folding frame 220 is connected in a hinged manner, so that the spoiler 210 can be folded and unfolded along the length direction thereof.

[0050] The first driving member 230 is a driving device such as an electric push rod, a stepping motor or a hydraulic pump, which is fixed in the vehicle shell 100 by bolts and connected with one end of the folding frame 220. If the first driving member 230 is an electric push rod, the electric push rod will push the folding frame 220 to unfold during operation, thereby driving the spoiler 210 to synchronously unfold and extend out of the mounting slot 110. When the electric push rod is reversely started, the folding frame 220 will be folded, and the spoiler 210 will also be folded into the mounting slot 110.

[0051] In specific implementation, the first driving member 230 is configured to drive the folding frame 220 to switch between the unfolded and folded states. When the first driving member 230 is started, the output end of the first driving member 230 pushes the folding frame 220 to unfold, thereby driving the spoiler 210 to synchronously unfold and extend out of the mounting slot 110 to achieve the regulation of the airflow. When the first driving member 230 is stopped or reversed, the folding frame 220 will be folded, and the spoiler 210 will also be folded into the mounting slot 110 to avoid unnecessary interference with the overall performance of the train.

[0052] The first driving member 230 drives the folding frame 220 to unfold and fold, so that the spoiler 210 can unfold and extend out of the mounting groove 110 along with the folding frame 220 to change the airflow state, and the spoiler 210 can fold into the mounting groove 110 along with the folding frame 220 to effectively reduce the occupied space of the device when not in use, so that the whole device is more compact, and the demand for the space arranged below the train roof is reduced. Thus, the spoiler assembly 200 of the embodiment of the present application simplifies the overall structure of the device and reduces the manufacturing cost, and at the same time, since the demand for the space arranged below the train roof is reduced, the arrangement difficulty of the spoiler device is also reduced, and the overall manufacturing cost of the train is reduced.

[0053] In some optional embodiments, referring to Figure 6 and Figure 7 , the folding frame 220 includes a fixing member 221 and at least two folding rods 222, the fixing member 221 is fixedly connected with the vehicle shell 100, and the at least two folding rods 222 are arranged in parallel and spaced apart on the fixing member 221 and movably connected with the fixing member 221; the spoiler 210 is fixedly arranged on the at least two folding rods 222, and the spoiler 210 has a fixed end 211 fixedly connected with the fixing member 221.

[0054] The fixing member 221 is a connecting component between the folding frame 220 and the vehicle shell 100, and the folding frame 220 is fixed on the vehicle shell 100 through the fixing member 221. The fixing member 221 can be fixedly connected with the vehicle shell 100 by bolts, welding or other suitable connection methods to ensure its stability and reliability during the operation of the train.

[0055] The folding frame 220 includes at least two folding rods 222, which are arranged in parallel and spaced apart on the fixing member 221, so that the spoiler 210 has sufficient support area when unfolded, while maintaining the compactness of the structure. The folding rods 222 and the fixing member 221 are movably connected, such as hinged connection or sliding connection, so that the folding rods 222 can be folded and unfolded relative to the fixing member 221, thereby driving the spoiler 210 to move synchronously.

[0056] The spoiler 210 is arranged on each folding rod 222 arranged in parallel and spaced apart, so that the spoiler 210 can be unfolded and folded in order during unfolding and folding, which is beneficial to improve the stability and reliability of the spoiler 210. The fixed end 211 of the spoiler 210 is fixedly connected to the fixing member 221, which further increases the stability of the spoiler 210 and prevents it from accidentally falling off or being damaged during unfolding or folding.

[0057] The folding frame 220 can provide sufficient support area for the spoiler 210 by the folding rods 222 and the fixing member 221, and the folding rods 222 are connected movably, so that the spoiler 210 can be unfolded and folded flexibly, which helps to reduce the occupied space when the device is not in use and improve the applicability of the spoiler assembly 200.

[0058] In some optional embodiments, the folding rods 222 are hingedly connected with the fixing member 221, and at least two folding rods 222 can rotate relative to the fixing member 221 towards the slot opening of the mounting slot 110, so that the spoiler 210 can be unfolded away from the fixed end 211.

[0059] The folding rods 222 are connected with the fixing member 221 by hinges, so that the folding rods 222 can rotate relative to the fixing member 221 towards the slot opening of the mounting slot 110, and when the folding rods 222 rotate, the spoiler 210 can be moved together, so that the spoiler 210 can be unfolded away from the fixed end 211. When the folding rods 222 rotate, the spoiler 210 can be gradually unfolded with the rotation of the folding rods 222, and in this process, the spoiler 210 can be gradually changed from the compact folded state to the unfolded working state, so as to effectively reduce the vortex at the tail of the train and improve the aerodynamic performance of the train. Conversely, when the folding rods 222 rotate reversely, the spoiler 210 can be folded, and in this process, the spoiler 210 can return to the compact state, so as to be stored when not in use.

[0060] The folding frame 220 in the embodiment is unfolded in a rotating manner, and compared with the straight-line unfolding manner, the folding frame 220 can keep a smaller volume before being unfolded in a rotating manner, which is beneficial to the storage and transportation of the spoiler 210 in a limited space. In comparison, the straight-line unfolding manner needs a larger space to accommodate the unfolded folding frame 220 and the spoiler 210. Meanwhile, when the folding frame 220 is unfolded in a rotating manner, each folding rod 222 can transfer the load to the fixing member 221, so that the folding frame 220 can more effectively disperse and withstand external force, which helps to improve the stability and durability of the whole structure.

[0061] In some optional embodiments, referring to Figure 6 , the folding frame 220 further comprises a linkage member 223, at least two folding rods 222 are hingedly connected with the linkage member 223, and the output portion of the first driving member 230 is connected with one of the at least two folding rods 222, so that the at least two folding rods 222 can rotate synchronously.

[0062] The linkage 223 is connected with each folding rod 222, so that the folding rods 222 can form an integral whole and rotate synchronously, thereby the folding frame 220 can keep a more stable structure during unfolding and folding, which helps to reduce vibration caused by unstable structure and improve structural stability.

[0063] Meanwhile, the first driving member 230 only needs one driving source to control unfolding and folding of the whole folding frame 220, which is beneficial to simplify device structure, reduce manufacturing cost and reduce control difficulty.

[0064] In some optional embodiments, referring to Figure 6 The fixed member 221 is provided with a first guide slot 221b in the rotating direction of the folding rod 222, and the folding rod 222 is guided and matched with the first guide slot 221b. Through the first guide slot 221b, the folding rod 222 can rotate along a preset path during rotation, which is beneficial to improve the accuracy and stability of the folding rod 222 rotation, reduce friction and wear caused by rotation, and prolong the service life of the folding frame 220.

[0065] In some optional embodiments, referring to Figure 6 In the rotating direction of the folding rod 222, the fixed member 221 is provided with a limiting portion 221a on the side close to the fixed end 211, and at least two folding rods 222 can be folded on the limiting portion 221a.

[0066] The limiting portion 221a can limit the maximum position of the folding rod 222 during rotation, prevent the folding rod 222 from excessive rotation and damage the structure or affect the function, and provide a stable support point for folding of the folding rod 222, so that the folding rod 222 can keep compact and stable in the folded state. In this embodiment, by providing the limiting portion 221a on the fixed member 221, the folding rod 222 can keep a more compact and stable form in the folded state, which reduces the occupied space and improves the space utilization. Meanwhile, the limiting portion 221a provides a stable support point for the folding rod 222, so that the folding frame 220 can keep a certain strength and rigidity in the folded state, avoiding deformation or damage caused by external force.

[0067] In some optional embodiments, referring to Figure 5 and Figure 7 In the arrangement direction of the at least two folding rods 222, the folding rod 222 away from the fixed end 211 has a sealing surface 222a matched with the outer surface of the vehicle shell 100, wherein the sealing surface 222a covers the slot opening of the mounting slot 110 when the folding frame 220 is folded.

[0068] The sealing surface 222a matches the outer surface of the vehicle body 100, that is, when the folding frame 220 is in the folded state, the sealing surface 222a can be closely attached to the outer surface of the vehicle body 100 to form an effective sealing barrier to prevent external air, moisture, dust and other impurities from entering the mounting groove 110, and to reduce the external wind force acting on other structural members in the vehicle body 100, thereby protecting the folding frame 220 and the vehicle body 100 from damage. At the same time, the sealing surface 222a can also reduce the noise and vibration caused by air flow through the gap, improve the driving stability of the vehicle and the comfort of the passengers. In addition, since the sealing surface 222a matches the outer surface of the vehicle body 100, the folding frame 220 can maintain a more compact and neat form in the folded state, which is beneficial to improve the overall aesthetics of the vehicle.

[0069] In some optional embodiments, referring to Figures 8 to 10 , the tail vortex spoiler device further comprises a limiting component 300, the limiting component 300 comprises a limiting piece 310 and a second driving piece 320, the limiting piece 310 is hingedly connected to the groove edge of the mounting groove 110, and the second driving piece 320 is connected with the limiting piece 310, and the second driving piece 320 can drive the limiting piece 310 to rotate relative to the groove edge of the mounting groove 110, so that the limiting piece 310 at least partially covers the slot opening of the mounting groove 110.

[0070] The limiting piece 310 can rotate within a certain range relative to the groove edge, thereby realizing the covering or opening of the slot opening. Since the limiting piece 310 at least partially covers the slot opening of the mounting groove 110, it plays a protective and limiting role on the spoiler component 200. When the folding frame 220 is in the folded state, the limiting piece 310 can completely or partially cover the slot opening to prevent external impurities from entering the mounting groove 110, and to avoid interference and obstruction caused by these impurities when the folding frame 220 is unfolded. At the same time, when it is necessary to unfold the folding frame 220, the limiting piece 310 can be rotated to open, providing sufficient space for the unfolding of the folding frame 220. The second driving piece 320 is used to drive the limiting piece 310 to rotate, control the rotation angle and speed of the limiting piece 310, and thereby realize the covering of the slot opening and the opening of the slot opening. Exemplarily, the second driving piece 320 is a rotating motor or a stepping motor, and the output end thereof drives the limiting piece 310 to rotate through gear transmission.

[0071] When the limiting assembly 300 is applied to scenarios such as high-speed trains, aircraft and other vehicles, the folding frame 220 and the mounting groove 110 need to be frequently unfolded and folded, while also needing to maintain high sealing performance and structural stability. Through the covering of the limiting piece 310, it can further prevent external air, moisture, dust and other impurities from entering the inside of the mounting groove 110, thereby improving the sealing performance of the entire tail vortex disturbance device. The hinged connection of the limiting piece 310 and the driving control of the second driving piece 320 enable the limiting assembly 300 to maintain high structural stability and reliability during unfolding and folding.

[0072] Therefore, through the hinged connection of the limiting piece 310 and the driving control of the second driving piece 320, the limiting assembly 300 can maintain structural stability during unfolding and folding.

[0073] In some optional embodiments, the limiting piece 310 includes a limiting plate 311 and a connecting seat 312, the limiting plate 311 is connected with the connecting seat 312, and the groove along of the mounting groove 110 is provided with a second guide groove 111 extending in the rotation direction of the limiting piece 310, and the connecting seat 312 is connected in the second guide groove 111.

[0074] The limiting plate 311 is used to cover the slot opening of the mounting groove 110 or cover the slot opening area that cannot be sealed by the folding rod 222, and its shape, size and material need to be designed according to the actual application scenario and requirements to ensure that it can provide sufficient protection or limiting during unfolding and folding of the folding frame 220. The connecting seat 312 is a connecting component between the limiting plate 311 and the groove along of the mounting groove 110, which can install the limiting plate 311 on the groove along and drive the limiting plate 311 to rotate within a predetermined rotation angle. The connecting seat 312 can be connected with the limiting plate 311 through hinged connecting components such as bolts, pins and the like to form an integral structure.

[0075] The connecting seat 312 is connected in the second guide groove 111, and the second guide groove 111 plays a guiding and supporting role on the connecting seat 312, so that the limiting piece 310 can move along a predetermined track during rotation, avoiding faults and damage caused by deviation from the track, and facilitating to improve the stability and reliability of the limiting piece 310.

[0076] In some optional embodiments, the groove along of the mounting groove 110 is provided with a limiting step 112, and the limiting step 112 is located on the side of the groove along of the mounting groove 110 close to the slot opening. When the limiting piece 310 covers the slot opening of the mounting groove 110, the limiting piece 310 is limited and matched with the limiting step 112.

[0077] The limiting step 112 serves as a limiting point for the limiting piece 310 when covering the slot. When the limiting piece 310 is rotated to the position of covering the slot, the limiting piece 310 comes into contact with the limiting step 112 and is limited and matched, thereby ensuring that the limiting piece 310 can stably stay at the predetermined position and will not easily move or deviate due to external factors such as wind, vibration, etc. It can be understood that the limiting step 112 is shaped to match the contact surface of the limiting piece 310 to ensure a close fit between the two.

[0078] When the limiting piece 310 is rotated to the position of covering the slot, it will come into contact with the limiting step 112. This contact can be sliding contact, rolling contact or static contact, depending on the design of the limiting piece 310 and the limiting step 112 and the requirements of the actual application scenario. During the contact, the limiting piece 310 is limited and supported by the limiting step 112, thereby maintaining a stable posture.

[0079] Through the cooperation of the limiting step 112 and the limiting piece 310, the movement range of the limiting piece 310 can be effectively limited, ensuring that it always remains at the predetermined position. This limiting effect not only helps to prevent the limiting piece 310 from deviating from the track due to external factors, but also improves the stability and reliability of the entire spoiler assembly 200 system.

[0080] The application also provides a train, comprising a train body and the tail vortex spoiler device provided by the above-mentioned embodiments, the tail vortex spoiler device being arranged on the train body. It can be understood that the train has the beneficial effects of the tail vortex spoiler device of any of the above-mentioned embodiments, which will not be described one by one here.

[0081] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptive changes of this application following the general principles of the application and including known or customary practices in the art not specifically disclosed. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the application are indicated by the following claims.

[0082] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is indicated by the appended claims.

Claims

1. A tail vortex spoiler device, characterized by, The tail vortex spoiler device comprises: a vehicle shell (100) provided with a mounting groove (110); a spoiler assembly (200) comprising a spoiler (210), a folding frame (220) and a first driving member (230), the spoiler (210) being foldably arranged on the folding frame (220), the folding frame (220) being connected with the vehicle shell (100), and the first driving member (230) being connected with the folding frame (220); the first driving member (230) is configured to drive the folding frame (220) to unfold and fold, so that the spoiler (210) follows the folding frame (220) to unfold and extend out of the mounting groove (110) or fold into the mounting groove (110); the folding frame (220) comprises a fixing member (221) and at least two folding rods (222), the spoiler (210) being fixedly arranged on the at least two folding rods (222), and the folding rods (222) being hingedly connected with the fixing member (221); the folding frame (220) further comprises a linkage member (223), the at least two folding rods (222) being hingedly connected with the linkage member (223), and an output portion of the first driving member (230) being connected with one of the at least two folding rods (222), so that the at least two folding rods (222) can rotate synchronously.

2. The tail vortex spoiler device according to claim 1, wherein the fixing member (221) is fixedly connected with the vehicle shell (100), and the at least two folding rods (222) are arranged in parallel on the fixing member (221) and movably connected with the fixing member (221); and the spoiler (210) has a fixed end (211) fixedly connected with the fixing member (221).

3. The tail vortex spoiler device according to claim 2, wherein the at least two folding rods (222) can rotate relative to the fixing member (221) towards a slot opening of the mounting groove (110), so that the spoiler (210) unfolds in a direction away from the fixed end (211).

4. The tail vortex spoiler device according to claim 3, wherein the fixing member (221) is provided with a first guide groove (221b) in a rotation direction of the folding rod (222), and the folding rod (222) is guided in cooperation with the first guide groove (221b); and / or, in the rotation direction of the folding rod (222), a limiting portion (221a) is arranged on a side of the fixing member (221) close to the fixed end (211), and the at least two folding rods (222) can be folded in the limiting portion (221a).

5. The tail vortex spoiler device according to claim 2, wherein In the arrangement direction of the at least two folding rods (222), the folding rod (222) away from the fixed end (211) has a sealing surface (222a) matched with the outer surface of the car body (100), wherein the sealing surface (222a) covers the slot opening of the mounting slot (110) when the folding frame (220) is folded.

6. The trailing vortex flow disturbing device according to any one of claims 1 to 5, characterized in that, Further comprising a blocking assembly (300), the blocking assembly (300) comprising a blocking piece (310) and a second driving piece (320), the blocking piece (310) is hingedly connected to the slot side of the mounting slot (110), the second driving piece (320) is connected with the blocking piece (310), the second driving piece (320) can drive the blocking piece (310) to rotate relative to the slot side of the mounting slot (110), so that the blocking piece (310) at least partially covers the slot opening of the mounting slot (110).

7. The trailing vortex flow disturbing device according to claim 6, characterized in that, The blocking piece (310) comprises a blocking plate (311) and a connecting seat (312), the blocking plate (311) is connected with the connecting seat (312), the slot side of the mounting slot (110) is provided with a second guide slot (111) extending along the rotation direction of the blocking piece (310), and the connecting seat (312) is connected in the second guide slot (111).

8. The trailing vortex flow perturbation device of claim 6, wherein, The slot side of the mounting slot (110) is provided with a limiting step (112), the limiting step (112) is located on the side of the slot side of the mounting slot (110) close to the slot opening, and when the blocking piece (310) covers the slot opening of the mounting slot (110), the blocking piece (310) is limitedly matched with the limiting step (112).

9. A train characterized in that A train body and the trailing vortex flow disturbing device according to any one of claims 1 to 8, the trailing vortex flow disturbing device is arranged on the train body.

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