Train front end opening and closing mechanism

Abstract

The invention relates to a train front end opening and closing mechanism. The train front end opening and closing mechanism comprises a supporting frame, a fairing cabin door and a driving mechanism. Wherein the fairing cabin door is divided into a first fairing, a second fairing and a third fairing which are rotationally connected to the supporting frame through a first rotating arm, a second rotating arm and a third rotating arm correspondingly, the driving mechanism comprises three driving elements which are installed on the supporting frame correspondingly, and the power output ends of the three driving elements are connected to the three rotating arms correspondingly to provide driving force for the three rotating arms. The device solves the problem that in part of specific vehicle types, two air guide cover cabin doors cut according to a conventional type cannot be prevented from interfering with vehicle interior parts such as an energy absorption device and a vehicle coupler in a left-right or up-down opening mode, and is simple and reliable in structure and convenient to use. The connection positions of the three fairings can be adaptively adjusted according to the difference of the installation position of the energy absorption device in the car and the swing angle of the car coupler, and the adaptability of the fairings cabin door to the arrangement of internal parts at the front end of the car body is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a train front end opening and closing mechanism. Background Art

[0002] The front opening and closing mechanism of the high-speed train is an integral part of the dynamic head shape of the EMU. When the train is running alone, the deflector door of the opening and closing mechanism is in a closed state, so that the train forms a complete aerodynamic aesthetic shape. When it is necessary to run in multiple units, the deflector door must be in the open position so that the coupler can be fully and unimpededly connected.

[0003] In the prior art, the opening and closing mechanism is usually equipped with two deflector doors, which are opened by rotating left and right or up and down to avoid interference between the doors and the vehicle interior components such as the coupler and the energy absorption device. As the train speed continues to increase, in order to reduce wind resistance, the requirements for streamlined bodies are getting higher and higher, the front end of the body is becoming more and more sharp, the internal space of the front end of the body is becoming more and more compact, and the movement space of the deflector doors of the opening and closing mechanism is getting smaller and smaller. In this case, the deflector door is cut into two pieces according to the conventional type, and is opened left and right or up and down, which cannot avoid interference with the energy absorption device, coupler and other vehicle interior components. Summary of the invention

[0004] The object of the present invention is to solve one of the above-mentioned technical problems and to provide a train front end opening and closing mechanism, which divides the air deflector door into three pieces and controls the movement trajectories of the three air deflectors through three rotating arms respectively, thereby achieving the situation where the movement space of the air deflector door is limited, and the process of opening and closing the air deflector does not interfere with the front end components in the car.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A train front end opening and closing mechanism, comprising:

[0007] Support frame;

[0008] The rotating arm mechanism comprises a first rotating arm, a second rotating arm and a third rotating arm; one end of the first rotating arm, the second rotating arm and the third rotating arm are respectively rotatably connected to the supporting frame;

[0009] The deflector door comprises a first deflector, a second deflector and a third deflector; the first deflector, the second deflector and the third deflector are respectively connected to the other ends of the first rotating arm, the second rotating arm and the third rotating arm;

[0010] When the deflector door is closed, the third deflector and the second deflector are assembled together and are arranged opposite to the first deflector;

[0011] During the opening and closing process of the air deflector door, the first rotating arm drives the first air deflector to flip around an axis parallel to the first direction, the second rotating arm drives the second air deflector to flip around an axis parallel to the second direction, and the third rotating arm drives the third air deflector to flip relative to the second air deflector around an axis parallel to the second direction; the first direction is arranged perpendicular to the second direction.

[0012] In some embodiments of the present invention, a driving mechanism is further included, and the driving mechanism includes:

[0013] A first driving element is fixed to the supporting frame, and a power output end thereof is connected to the first rotating arm;

[0014] A second driving element is fixed to the supporting frame, and a power output end thereof is connected to the second rotating arm;

[0015] The third driving element is fixed to the supporting frame, and a power output end thereof is connected to the third rotating arm.

[0016] In some embodiments of the present invention, the method further comprises a fourth rotating arm;

[0017] One end of the fourth rotating arm is connected to the first air deflector, and the other end is rotatably connected to the support frame; the fourth rotating arm is connected to the first rotating arm through a connecting piece, and the fourth rotating arm is driven to rotate synchronously through the connecting piece during the rotation of the first rotating arm.

[0018] In some embodiments of the present invention, an auxiliary driving member is further included; one end of the auxiliary driving member is connected to the supporting frame, and the other end is connected to the fourth rotating arm through a transfer seat.

[0019] In some embodiments of the present invention, when the connection point between the auxiliary drive member and the support frame, the connection point between the auxiliary drive member and the adapter, and the connection point between the adapter and the fourth rotating arm are in the same straight line, the auxiliary drive member is in the locked support position;

[0020] During the flipping process of the first air deflector from the closed state to the open state, the fourth rotating arm drives the auxiliary driving member through the adapter seat from the starting rotation position to the locking support position to the ending rotation position;

[0021] During the process of the auxiliary driving member rotating from the starting rotation position to the locking support position, the auxiliary driving member provides a reverse driving force for the rotation of the fourth rotating arm;

[0022] When the auxiliary driving member rotates from the locking support position to the rotation end position, the auxiliary driving member provides a positive driving force for the fourth rotating arm.

[0023] In some embodiments of the present invention, a locking mechanism is further included, and the locking mechanism includes:

[0024] A first locking device, one end of which is connected to the first rotating arm, and the other end of which is rotatably connected to the main frame; when the first air deflector is in an open or closed state, a mechanical self-locking angle is formed between the first locking device and the first rotating arm, so that the first air deflector is locked to a corresponding position;

[0025] A second locking device, one end of which is connected to the second rotating arm, and the other end of which is rotatably connected to the main frame; when the second air deflector is in an open or closed state, a mechanical self-locking angle is formed between the second locking device and the second rotating arm, so that the second air deflector is locked to a corresponding position;

[0026] The third locking device has one end connected to the third rotating arm and the other end rotatably connected to the main frame; when the third air deflector is in an open or closed state, a self-locking angle is formed between the third locking device and the third rotating arm, so that the third air deflector is locked to the corresponding position.

[0027] In some embodiments of the present invention, the power output end of the first driving element is connected to the first locking device to drive the first rotating arm to rotate through the first locking device;

[0028] The power output end of the second driving element is connected to the second locking device to drive the second rotating arm to rotate through the second locking device;

[0029] The power output end of the third driving element is connected to the third locking device to drive the third rotating arm to rotate through the third locking device.

[0030] In some embodiments of the present invention, a first sliding groove is provided on the first rotating arm, and the first locking device is slidably disposed in the first sliding groove;

[0031] The second rotating arm is provided with a second sliding groove, and the second locking device is slidably arranged in the second sliding groove;

[0032] The third rotating arm is provided with a third sliding groove, and the third locking device is slidably arranged in the third sliding groove.

[0033] In some embodiments of the present invention, a rotation mechanism is further included, and the rotation mechanism includes:

[0034] A first rotating shaft connected to the supporting frame and rotatably connected to the first rotating arm;

[0035] A second rotating shaft connected to the supporting frame and rotatably connected to the second rotating arm;

[0036] The third rotating shaft is connected to the supporting frame and is rotatably connected to the third rotating arm.

[0037] In some embodiments of the present invention, the third air guide cover and the second air guide cover are combined to form a whole which is located below the first air guide cover;

[0038] When the air deflector door is opened, the first air deflector is turned upwards driven by the first rotating arm, and the second air deflector and the third air deflector are turned to the left and right sides respectively driven by the second rotating arm and the third rotating arm.

[0039] Some embodiments of the present invention further provide a rail vehicle, comprising:

[0040] Train body;

[0041] Energy absorbing device, installed at the front end of the train body;

[0042] The opening and closing mechanism at the front end of the train is the above-mentioned opening and closing mechanism at the front end of the train. When the air deflector in the opening and closing mechanism is in the open position, the first air deflector rotates into the train body and is located at the upper part of the energy absorbing device, and the second air deflector and the third air deflector are respectively located at the lower part of the energy absorbing device.

[0043] The beneficial effects of the present invention are:

[0044] 1. The present invention divides the air deflector door into three parts. When the air deflector door is opened, the first air deflector is driven by the first rotating arm to flip upward to the top of the energy absorbing device at the front end of the vehicle body, and the second air deflector and the third air deflector are driven by the second rotating arm and the third rotating arm to flip to the lower left and lower right to the bottom of the energy absorbing device at the front end of the vehicle body, respectively, so as to solve the problem that in some specific vehicle models, two air deflector doors divided according to conventional patterns cannot avoid interference with the energy absorbing device, the vehicle hook and other vehicle internal components when opening left and right or up and down;

[0045] 2. The structure of the present invention is simple and reliable, and the connection positions and movement trajectories of the three fairings can be adaptively adjusted according to the installation positions of the energy absorption devices in the vehicle and the swing angles of the hooks, thereby improving the adaptability of the fairing hatch to the arrangement of the internal components of the front end of the vehicle body.

[0046] 3. The present invention realizes the automatic rotation of the three parts of the deflector door by setting a driving mechanism. At the same time, the driving mechanism is connected to the rotating arm mechanism through a locking mechanism, so that the deflector door can be firmly fixed in both the open position and the closed position, which greatly improves the reliability of the product;

[0047] 4. In the present invention, both sides of the first air deflector are connected to the support frame through the first rotating arm and the fourth rotating arm respectively, thereby avoiding the problem of unilateral instability, shaking and gap of the first air deflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 It is a structural schematic diagram of the opening and closing mechanism at the front end of the train;

[0050] Figure 2 It is a top view of the opening and closing mechanism at the front end of the train;

[0051] Figure 3 is a schematic structural diagram of the first rotating arm and the fourth rotating arm;

[0052] Figure 4 It is a structural schematic diagram of the opening and closing mechanism and the energy absorbing device;

[0053] Figure 5 It is a schematic diagram of the structure of the opening and closing mechanism, the energy absorbing device and the coupler;

[0054] Figure 6 It is a structural schematic diagram of the opening and closing mechanism in the closed state;

[0055] Wherein, the accompanying drawings are marked as follows:

[0056] 1. Support frame;

[0057] 2. Air deflector door; 21. First air deflector; 22. Second air deflector; 23. Third air deflector;

[0058] 3. Rotating arm mechanism; 31. First rotating arm; 32. Second rotating arm; 33. Third rotating arm; 34. Fourth rotating arm; 35. Connecting piece;

[0059] 4. driving mechanism; 41. first driving element; 42. second driving element; 43. third driving element;

[0060] 5. Auxiliary driving part; 51. Cylinder body; 52. Piston rod;

[0061] 6. Adapter;

[0062] 7. Locking mechanism; 71. First locking device; 72. Second locking device; 73. Third locking device;

[0063] 8. Rotating shaft mechanism; 81. First rotating shaft; 82. Second rotating shaft; 83. Third rotating shaft;

[0064] 9. Energy absorbing device;

[0065] 10. Coupler. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0067] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can be applied to other similar scenarios based on these drawings without any creative work.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0069] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the usual meanings understood by persons with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a kind" and the like involved in this application do not indicate a quantitative limitation and may indicate the singular or plural. The terms "include", "comprises", "has" and any variations thereof involved in this application are intended to cover non-exclusive inclusions.

[0070] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] The technical solution of the present invention is described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0072] As attached Figure 1 -Attached Figure 6 As shown, in an illustrative embodiment of a train front end opening and closing mechanism of the present invention, the train front end opening and closing mechanism includes a supporting frame 1, a deflector door 2, a rotating arm mechanism 3 and a driving mechanism 4.

[0073] The support frame 1 is fixedly installed inside the conical nose structure at the front end of the train body so that components such as the swing arm mechanism 3 and the drive mechanism 4 can be connected to the body.

[0074] The deflector door 2 is divided into three parts, as shown in the attached Figure 4 -Attached Figure 6 As shown, they are the first air guide cover 21, the second air guide cover 22 and the third air guide cover 23 respectively.

[0075] The rotating arm mechanism 3 includes a first rotating arm 31 , a second rotating arm 32 and a third rotating arm 33 .

[0076] The first air deflector 21 is rotatably connected to the supporting frame 1 via the first rotating arm 31 .

[0077] The second air deflector 22 and the third air deflector 23 are rotatably connected to the support frame 1 through the second rotating arm 32 and the third rotating arm 33 respectively. The third air deflector 23 and the second air deflector 22 are assembled as a whole and are arranged opposite to the first air deflector 21.

[0078] The first air deflector 21, the second air deflector 22 and the third air deflector 23 are assembled into a streamlined body shape of the front end of the train in a closed state;

[0079] During the opening and closing process of the air deflector door 2, the first rotating arm 31 drives the first air deflector 21 to flip around an axis parallel to the first direction, the second rotating arm 32 drives the second air deflector 22 to flip around an axis parallel to the second direction, and the third rotating arm 33 drives the third air deflector 23 to flip relative to the second air deflector 22 around an axis parallel to the second direction. The first direction and the second direction are perpendicular to each other.

[0080] In this embodiment, the first direction is the horizontal direction, and the second direction is the vertical direction. That is, when the air deflector door 2 is opened, the first air deflector 21 is driven by the first rotating arm 31 to flip upward to the top of the energy absorption device 9 in the conical nose structure at the front end of the vehicle body, and the second air deflector 22 and the third air deflector 23 are driven by the second rotating arm 32 and the third rotating arm 33 to flip left and right to the lower left and lower right of the energy absorption device 9 in the conical nose structure at the front end of the vehicle body. When the air deflector door 2 is closed, the first air deflector 21 is driven by the first rotating arm 31 to flip downward, and the second air deflector 22 and the third air deflector 23 are driven by the second rotating arm 32 and the third rotating arm 33 to flip right and left, and are assembled with the first air deflector 21 to form the air deflector door 2.

[0081] The driving mechanism 4 comprises a first driving element 41, a second driving element 42 and a third driving element 43. The first driving element 41, the second driving element 42 and the third driving element 43 are all pneumatic elements, specifically power source cylinders.

[0082] The first driving element 41 is fixed to the supporting frame 1, and its power output end is connected to the first rotating arm 31, so as to drive the first rotating arm 31 to rotate. The second driving element 42 is fixed to the supporting frame 1, and its power output end is connected to the second rotating arm 32, so as to drive the second rotating arm 32 to rotate. The third driving element 43 is fixed to the supporting frame 1 relative to the second driving element 42, and its power output end is connected to the third rotating arm 33, so as to drive the third rotating arm 33 to rotate.

[0083] In the above-mentioned schematic embodiment, the air deflector door 2 is divided into three parts. In the open state, the first air deflector 21 is driven by the first rotating arm 31 to flip upward to above the energy absorbing device 9 in the tapered nose structure at the front end of the vehicle body, and the second air deflector 22 and the third air deflector 23 are driven by the second rotating arm 32 and the third rotating arm 33 to flip downward to below the energy absorbing device 9 in the tapered nose structure at the front end of the vehicle body, respectively. This solves the problem that in some specific vehicle models, the two air deflector doors 2 divided according to the conventional type cannot avoid interference with the energy absorbing device 9, the coupler 10 and other vehicle internal components when opened left and right or up and down.

[0084] In some embodiments of the present invention, the connection positions of the three air deflectors can be adjusted according to the installation positions of the in-vehicle energy absorption device 9 and the swing angles of the coupler 10, so as to improve the adaptability of the air deflector hatch 2 to the arrangement of the internal components of the front end of the vehicle body. Specifically, when the in-vehicle energy absorption device 9 and the coupler 10 are installed in the space near the upper part of the vehicle body, the first air deflector 21 is used as the upper hatch, and the third air deflector 23 and the second air deflector 22 are combined as a lower hatch, which is located below the first air deflector 21 when the air deflector hatch 2 is closed.

[0085] When the in-vehicle energy absorption device 9 and the hook 10 are installed in the space near the lower part of the vehicle body, the first air deflector 21 is used as the lower hatch, and the third air deflector 23 and the second air deflector 22 are combined as a whole as the upper hatch, which is located above the first air deflector 21 when the air deflector hatch 2 is closed.

[0086] In some embodiments of the present invention, a fourth rotating arm 34 is further included. One end of the fourth rotating arm 34 is connected to the first air deflector 21 , and the other end is rotatably connected to the supporting frame 1 .

[0087] The fourth rotating arm 34 and the first rotating arm 31 are arranged parallel and opposite to each other, and are respectively connected to the left and right sides of the supporting frame 1. The fourth rotating arm 34 and the first rotating arm 31 are connected by a connecting piece 35. When the first driving element 41 drives the first rotating arm 31 to rotate, the first rotating arm 31 drives the fourth rotating arm 34 to rotate synchronously through the connecting piece 35. In this embodiment, a synchronous mechanical connecting rod is used to realize the synchronous movement of the rotating arms on both sides of the first air deflector 21, and the two sides of the air deflector can be firmly locked in the open position and the closed position of the air deflector, thereby avoiding the problem of unilateral instability, shaking, and gap in the air deflector door 2.

[0088] In some embodiments of the present invention, an auxiliary driving member 5 is further included. The auxiliary driving member 5 is specifically a gas spring or other elastic element. One end of the auxiliary driving member 5 is connected to the support frame 1, and the other end is connected to the fourth rotating arm 34 through the adapter seat 6. The support seat is connected to the support frame 1, and the auxiliary driving member 5 can play a locking and driving role in the flipping process of the first air deflector 21, which is conducive to accurately controlling the position of the first air deflector 21, ensuring that the first air deflector 21 can be locked in a predetermined position. At the same time, when the first air deflector 21 is opened manually in an emergency, it is affected by gravity. After passing the locking position, the auxiliary driving member 5 can provide a positive force for opening upwards, which greatly reduces the operating force of the operator and ensures the feasibility of the solution.

[0089] In some embodiments of the present invention, when the connection point between the auxiliary drive member 5 and the support frame 1, the connection point between the auxiliary drive member 5 and the adapter, and the connection point between the adapter and the fourth rotating arm 34 are in the same straight line, the auxiliary drive member 5 is in the locked support position, that is, the dead point position of the auxiliary drive member 5;

[0090] During the flipping process of the first air deflector 21 from the closed state to the open state, the fourth rotating arm 34 drives the auxiliary driving member 5 through the adapter seat from the starting rotation position to the locking support position to the ending rotation position;

[0091] During the process of the auxiliary driving member 5 rotating from the starting rotation position to the locking support position, the auxiliary driving member 5 provides a reverse driving force for the rotation of the fourth rotating arm 34;

[0092] When the auxiliary driving member 5 rotates from the locking support position to the rotation end position, the auxiliary driving member 5 provides a positive driving force for the rotation of the fourth rotating arm 34 .

[0093] Specifically, the auxiliary driving component 5 includes a cylinder body 51 and a piston rod 52, wherein the cylinder body 51 is connected to the support frame 1, one end of the piston rod 52 is connected to the adapter 6, and the other end is movably arranged in the cylinder body 51 and can slide along the axial direction of the cylinder rigid body.

[0094] In some embodiments of the present invention, a locking mechanism 7 is further included. The locking mechanism 7 includes a first locking device 71 , a second locking device 72 and a third locking device 73 .

[0095] Among them, one end of the first locking device 71 is connected to the first rotating arm 31, and the other end is rotatably connected to the main frame; when the first air deflector 21 is in an open or closed state, a mechanical self-locking angle is formed between the first locking device 71 and the first rotating arm 31, so that the first air deflector 21 is locked to a corresponding position. One end of the second locking device 72 is connected to the second rotating arm 32, and the other end is rotatably connected to the support frame 1; when the second air deflector 22 is in an open or closed state, a mechanical self-locking angle is formed between the second locking device 72 and the rotating arm of the second rotating arm 32, so that the second air deflector 22 is locked to a corresponding position. One end of the third locking device 73 is connected to the third rotating arm 33, and the other end is rotatably connected to the main frame; when the third air deflector 23 is in an open or closed state, a self-locking angle is formed between the third locking device 73 and the rotating arm of the third rotating arm 33, so that the third air deflector 23 is locked to a corresponding position. Add a locking mechanism 7 to provide a mechanical self-locking function for each air deflector. The beneficial effect is that the stability and safety of the air deflector in an open or closed state are improved, and the position change of the air deflector due to accidents is prevented.

[0096] In some embodiments of the present invention, the power output end of the first driving element 41 is connected to the first locking device 71, so as to drive the first rotating arm 31 to rotate through the first locking device 71. The power output end of the second driving element 42 is connected to the second locking device 72, so as to drive the second rotating arm 32 to rotate through the second locking device 72. The power output end of the third driving element 43 is connected to the third locking device 73, so as to drive the third rotating arm 33 to rotate through the third locking device 73. The driving element is directly connected to the locking device, and the rotating arm is driven to rotate through the locking device, which is conducive to improving the efficiency of power transmission and the accuracy of control.

[0097] In some embodiments of the present invention, a first slide groove is provided on the first rotating arm 31, and the first locking device 71 is slidably provided in the first slide groove. A second slide groove is provided on the second rotating arm 32, and the second locking device 72 is slidably provided in the second slide groove. A third slide groove is provided on the third rotating arm 33, and the third locking device 73 is slidably provided in the third slide groove. The slide groove is provided on the rotating arm so that the locking device slides in the slide groove, thereby improving the flexibility of the locking device to adapt to different deflector positions.

[0098] In some embodiments of the present invention, a rotating mechanism is further included, and the rotating mechanism includes a first rotating shaft 81 , a second rotating shaft 82 and a third rotating shaft 83 .

[0099] The first rotating shaft 81 is connected to the support frame 1 and is rotationally connected to the first rotating arm 31; the second rotating shaft 82 is connected to the support frame 1 and is rotationally connected to the second rotating arm 32; the third rotating shaft 83 is connected to the support frame 1 and is rotationally connected to the third rotating arm 33. The three rotating shafts provide stable rotation support for the three rotating arms, ensuring that the rotating arms rotate smoothly and reliably.

[0100] In order to explain this application more clearly, Figures 1 to 6 The working principle of the present invention is further described by taking the embodiment shown as an example:

[0101] For the first air deflector 21 , the first locking device 71 is driven to move by the first driving element 41 , thereby driving the first rotating arm 31 and the fourth rotating arm 34 to rotate synchronously, thereby realizing the opening or closing action of the first air deflector 21 .

[0102] During this process, the first locking device 71 moves in the first slide slot, and the first rotating arm 31 can be locked through the mechanical self-locking angle between the first locking device 71 and the first rotating arm 31, ensuring that one side of the first air deflector 21 is firmly locked. The fourth rotating arm 34 is connected to the auxiliary driving member 5 through the adapter 6, and when the first air deflector 21 is in the closed or open position, sufficient locking support force is provided to the fourth rotating arm 34, ensuring that the left and right sides of the first air deflector 21 can be firmly locked when it is in the open or closed position, and there is no unilateral shaking problem.

[0103] At the same time, to facilitate manual operation of the opening and closing mechanism, when the first air deflector 21 is manually flipped upward, the auxiliary drive member 5 can provide a positive driving force for the first air deflector 21 to flip upward after passing the locking support position, thereby reducing the operating force of the operator and providing the first air deflector 21 with an upward driving force to overcome gravity.

[0104] For the second air deflector 22 and the third air deflector 23, the second locking device 72 and the third locking device 73 are driven to move by the second driving element 42 and the third driving element 43 respectively, and then the second rotating arm 32 and the third rotating arm 33 are driven to rotate, so as to realize the opening or closing action of the second air deflector 22 and the third air deflector 23. The second locking device 72 and the third locking device 73 are both elastic locking devices to ensure that the second air deflector 22 and the third air deflector 23 are safely fixed in the open or closed position.

[0105] Some embodiments of the present invention further provide a rail vehicle, comprising a train body, an energy absorbing device 9 and a train front end opening and closing mechanism.

[0106] Among them, the energy absorbing device 9 is installed at the front end of the train body;

[0107] The opening and closing mechanism at the front end of the train is the above-mentioned opening and closing mechanism at the front end of the train. When the air deflector in the opening and closing mechanism is in the open position, the first air deflector 21 rotates into the train body and is located at the upper part of the energy absorbing device 9, and the second air deflector 22 and the third air deflector 23 are respectively located at the lower part of the energy absorbing device 9.

[0108] Finally, it should be noted that: 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.

[0109] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A train front end opening and closing mechanism, characterized in that: include: Support frame; A rotating arm mechanism, comprising a first rotating arm, a second rotating arm and a third rotating arm; One end of the first rotating arm, the second rotating arm and the third rotating arm are respectively rotatably connected to the supporting frame; A deflector door, comprising a first deflector, a second deflector and a third deflector; the first deflector, the second deflector and the third deflector are respectively connected to the other ends of the first rotating arm, the second rotating arm and the third rotating arm; When the deflector door is closed, the third deflector and the second deflector are assembled together and are arranged opposite to the first deflector; During the opening and closing process of the air deflector door, the first rotating arm drives the first air deflector to flip around an axis parallel to the first direction, the second rotating arm drives the second air deflector to flip around an axis parallel to the second direction, and the third rotating arm drives the third air deflector to flip relative to the second air deflector around an axis parallel to the second direction; the first direction and the second direction are perpendicular to each other.

2. The train front end opening and closing mechanism according to claim 1, characterized in that: Further comprising a driving mechanism, the driving mechanism comprising: A first driving element, fixed to the supporting frame, with a power output end connected to the first rotating arm; A second driving element, fixed to the supporting frame, with a power output end connected to the second rotating arm; The third driving element is fixed to the supporting frame, and a power output end thereof is connected to the third rotating arm.

3. The train front end opening and closing mechanism according to claim 1, characterized in that: further comprising a fourth rotating arm; One end of the fourth rotating arm is connected to the first air deflector, and the other end is rotatably connected to the supporting frame; The fourth rotating arm is connected to the first rotating arm via a connecting piece, and the fourth rotating arm is driven to rotate synchronously via the connecting piece during the rotation of the first rotating arm.

4. The train front end opening and closing mechanism according to claim 3, characterized in that: further comprising an auxiliary drive member; One end of the auxiliary driving member is connected to the supporting frame, and the other end is connected to the fourth rotating arm through a transfer seat.

5. The train front end opening and closing mechanism according to claim 4, characterized in that: When the connection point between the auxiliary drive member and the support frame, the connection point between the auxiliary drive member and the adapter seat, and the connection point between the adapter seat and the fourth rotating arm are in the same straight line, the auxiliary drive member is in a locked support position; During the flipping process of the first air deflector from the closed state to the open state, the fourth rotating arm drives the auxiliary driving member through the adapter seat from the starting rotation position to the locking support position to the ending rotation position; During the process of the auxiliary driving member rotating from the starting rotation position to the locking support position, the auxiliary driving member provides a reverse driving force for the rotation of the fourth rotating arm; During the process of the auxiliary driving member rotating from the locking support position to the rotation end position, the auxiliary driving member provides a positive driving force for the fourth rotating arm.

6. The train front end opening and closing mechanism according to claim 2, characterized in that: Further comprising a locking mechanism, the locking mechanism comprising: A first locking device, one end of which is connected to the first rotating arm, and the other end of which is rotatably connected to the main frame; when the first air deflector is in an open or closed state, a mechanical self-locking angle is formed between the first locking device and the first rotating arm, so that the first air deflector is locked to a corresponding position; A second locking device, one end of which is connected to the second rotating arm, and the other end of which is rotatably connected to the main frame; when the second air deflector is in an open or closed state, a mechanical self-locking angle is formed between the second locking device and the second rotating arm, so that the second air deflector is locked to a corresponding position; A third locking device has one end connected to the third rotating arm and the other end rotatably connected to the main frame; when the third air deflector is in an open or closed state, a self-locking angle is formed between the third locking device and the third rotating arm, so that the third air deflector is locked to a corresponding position.

7. The train front end opening and closing mechanism according to claim 6, characterized in that: The power output end of the first driving element is connected to the first locking device to drive the first rotating arm to rotate through the first locking device; The power output end of the second driving element is connected to the second locking device to drive the second rotating arm to rotate through the second locking device; The power output end of the third driving element is connected to the third locking device to drive the third rotating arm to rotate through the third locking device.

8. The train front end opening and closing mechanism according to claim 6 or 7, characterized in that: The first rotating arm is provided with a first sliding groove, and the first locking device is slidably arranged in the first sliding groove; The second rotating arm is provided with a second sliding groove, and the second locking device is slidably arranged in the second sliding groove; The third rotating arm is provided with a third sliding groove, and the third locking device is slidably arranged in the third sliding groove.

9. The train front end opening and closing mechanism according to claim 1, characterized in that: Further comprising a rotating mechanism, the rotating mechanism comprising: A first rotating shaft connected to the supporting frame and rotatably connected to the first rotating arm; A second rotating shaft connected to the supporting frame and rotatably connected to the second rotating arm; A third rotating shaft is connected to the supporting frame and is rotatably connected to the third rotating arm.

10. A rail train, characterized in that: include: The train front end opening and closing mechanism as described in any one of claims 1 to 9.

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