Flow guide cover opening and closing mechanism

Abstract

The invention relates to a fairing opening and closing mechanism which comprises a supporting plate, a rotating arm mechanism, a power mechanism and an auxiliary power mechanism. Wherein one end of the rotating arm mechanism is hinged to the supporting plate, the other end of the rotating arm mechanism is connected with the flow guide cover, and the power mechanism and the auxiliary power mechanism are both installed on the supporting plate and connected with the rotating arm mechanism through the adapter. In the automatic opening and closing process of the flow guide cover, the power mechanism and the auxiliary power mechanism provide movement power for the flow guide cover in stages. The two power sources are arranged to be matched, electric opening and closing of the fairing cabin door are achieved, the stability and efficiency of the electric opening and closing process are improved, meanwhile, manual opening and closing can be achieved through the guide groove design of the connecting base, and operation is convenient. The problem that emergency manual operation cannot be carried out on some train electric opening and closing mechanisms when no electricity exists or an electric driving piece breaks down is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to an opening and closing mechanism for a deflector cover. Background Art

[0002] In the design of modern rail trains, in order to protect the hooks and other equipment inside the train, a deflector hatch is usually set up, and its opening and closing state is controlled by an opening and closing mechanism to ensure that the deflector hatch is in the closed position when the train is running alone, and in the open position when the train needs emergency rescue or reconnection operation, so that the hook can be extended and connected. In order to ensure the reliability of emergency rescue,

[0003] Rail vehicles usually use cylinders as the power source for the opening and closing mechanism. However, since some trains, such as trams, cannot provide air sources to the front-end opening and closing mechanisms, the opening and closing mechanisms of this type of trains are still manually operated. When operating a manually operated opening and closing mechanism, workers need to get off the vehicle and manually move the deflector door. This is not only laborious and inefficient, but also requires workers to touch the bottom of the vehicle body during operation, posing a safety hazard. In some special scenarios, such as bad weather or complex operating environments, the inconvenience caused by manual operation is more obvious.

[0004] In the prior art, for trains that cannot provide an air source to the front-end opening and closing mechanism, if automatic opening and closing is to be achieved, an electric cylinder can only be used as a driving device. However, unlike the characteristic of an air cylinder that can be freely extended and retracted in a windless state, an electric cylinder cannot be freely extended and retracted when it is without electricity, and must be manually operated using a special tool at the tail of the electric cylinder. However, since the deflector hatch door of this type of train is too close to the ground after closing, the operator cannot observe or touch the electric cylinder inside the opening and closing mechanism, and the opening and closing mechanism using the electric cylinder cannot be manually extended and retracted. In the event that the train loses power or the electric cylinder fails and emergency rescue is required, the deflector hatch door of the opening and closing mechanism cannot be opened, and the train hook cannot be extended and connected, which will make it impossible to implement emergency rescue for the train, seriously affecting the safe operation of the train. Summary of the invention

[0005] The purpose of the present invention is to solve one of the above-mentioned technical problems and to provide a deflector opening and closing mechanism with reliable structure and easy operation, which realizes the electric automatic opening and closing of the deflector door and provides a manual emergency operation function, thereby improving the safety of train operation and the reliability of emergency rescue.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A deflector cover opening and closing mechanism, comprising:

[0008] A support plate, fixedly mounted on the train body;

[0009] The rotating arm mechanism has one end connected to the support plate and the other end connected to the air deflector; the rotating arm mechanism is provided with a pushing member;

[0010] The power mechanism comprises a first adapter seat and an electric drive member; the first adapter seat is rotatably connected to the support plate; the electric drive member is fixedly mounted on the support plate, and its power output end is hinged to the first adapter seat to drive the first adapter seat to rotate; a guide groove is provided on the first adapter seat, and the push member is slidably arranged in the guide groove;

[0011] The auxiliary power mechanism comprises a second adapter and a gas spring; one end of the gas spring is fixedly mounted on the support plate, and the other end is hinged to the second adapter; the second adapter is rotatably connected to the support plate and fixedly connected to the pusher;

[0012] During the automatic opening and closing process of the air deflector, the power mechanism and the auxiliary power mechanism drive the arm mechanism to move in stages, thereby providing movement power for the air deflector.

[0013] In some embodiments of the present invention, when the air deflector is in a closed state, the gas spring continuously provides a closing driving force for the air deflector through the rotating arm mechanism, and the pusher is located at the first end of the guide groove;

[0014] When the air deflector is in an open state, the gas spring continuously provides an opening driving force for the air deflector through the rotating arm mechanism, and the pushing member is located at the second end of the guide groove.

[0015] In some embodiments of the present invention, the deflector shield passes through a closed position, an intermediate position, and an open position in sequence during the automatic opening process;

[0016] When the air deflector moves from the closed position to the intermediate position, the power output end of the electric drive extends to drive the first adapter to rotate in the first direction. The pusher is located at the first end of the guide groove and rotates with the first adapter under the push of the groove wall, thereby driving the rotating arm mechanism to move, providing an opening driving force for the air deflector, so that the air deflector moves to the intermediate position.

[0017] During the movement of the air deflector from the middle position to the open position, the electric drive component remains unchanged, the gas spring crosses the mechanical critical point and continues to provide opening driving force for the air deflector through the swing arm mechanism, so that the air deflector continues to move to the open position. During this process, the pusher slides from the first end to the second end in the guide groove.

[0018] In some embodiments of the present invention, during the automatic closing process of the air deflector, it passes through the open position, the middle position and the closed position in sequence;

[0019] During the movement of the air deflector from the open position to the intermediate position, the power output end of the electric drive member retracts, driving the first adapter seat to rotate in the second direction. The pusher member is located at the second end of the guide groove, and rotates with the first adapter seat under the push of the groove wall, thereby driving the rotating arm mechanism to move, providing a closing driving force for the air deflector, so that the air deflector moves to the intermediate position.

[0020] During the movement of the air deflector from the middle position to the closed position, the electric drive component remains unchanged, the gas spring crosses the mechanical critical point and provides the air deflector with a closing drive force through the swing arm mechanism, so that the air deflector continues to move to the closed position. During this process, the pusher slides from the second end to the first end in the guide groove.

[0021] In some embodiments of the present invention, during the manual opening of the deflector cover, an external opening driving force is applied to the deflector cover to overcome the closing driving force provided by the gas spring, and the pusher slides from the first end to the second end of the guide groove during the process.

[0022] In some embodiments of the present invention, the present invention further comprises:

[0023] A locking device, which is installed at the hinge between the power output end of the electric drive component and the first adapter, and includes a housing, a locking component and an elastic component;

[0024] The housing is fixedly connected to the first adapter, the locking piece is slidably arranged in the housing, and the elastic piece is sleeved on the outside of the locking piece;

[0025] The locking piece has a locking position and an unlocking position in the shell. When the locking piece slides to the locking position, the locking piece penetrates the first adapter seat and the power output end of the electric drive member, so that the first adapter seat and the power output end of the electric drive member are hinged; when the locking piece slides to the unlocking position, the first adapter seat and the power output end of the electric drive member are separated.

[0026] In some embodiments of the present invention, the rotating arm mechanism includes a first rotating arm and a connecting member, one end of the first rotating arm is hinged to the support plate, and the other end is hinged to the connecting member; one end of the connecting member away from the first rotating arm is connected to the air deflector; and the pushing member is arranged on the first rotating arm.

[0027] In some embodiments of the present invention, the rotating arm mechanism further includes a second rotating arm, one end of the second rotating arm is hinged to the support plate, and the other end of the second rotating arm is hinged to the connecting member.

[0028] In some embodiments of the present invention, the power mechanism and the auxiliary power mechanism are respectively arranged on two sides of the support plate.

[0029] In some embodiments of the present invention, a transition piece is further included, and the rotating arm mechanism is connected to the air deflector via the transition piece.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention is provided with two power sources, an electric drive and a gas spring, to provide power for the arm mechanism in stages. Regardless of whether the deflector is automatically opened or closed, the electric drive is used to provide power in the first stage, and the gas spring is used to provide power in the second stage, thereby realizing the automatic opening and closing of the deflector door.

[0032] 2. The opening and closing mechanism provided by the present invention can effectively reduce the volume of the electric drive component, thereby reducing the space occupied by the opening and closing mechanism at the front end of the train, because the electric drive component does not need to provide a power source throughout the entire stroke;

[0033] 3. The opening and closing mechanism provided by the present invention is provided with a first adapter with a guide groove. When the opening and closing mechanism is in a closed state and the electric drive component cannot move due to an abnormality, the deflector door can be manually pulled to pull the pushing member in the rotating arm assembly from the first end of the guide groove to the second end, thereby controlling the rotation of the rotating arm mechanism, thereby realizing emergency operation of the opening and closing mechanism. After the deflector door is opened to the middle position, the electric drive component and the rotating arm mechanism are manually separated, thereby realizing full opening of the opening and closing mechanism, effectively solving the problem that the electric opening and closing mechanism of the tram cannot be manually operated in an emergency when there is no electricity or the electric drive component fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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.

[0035] Figure 1 It is a structural schematic diagram of the opening and closing mechanism of the air deflector;

[0036] Figure 2 It is a top view of the opening and closing mechanism of the air deflector;

[0037] Figure 3 It is a structural schematic diagram of the power mechanism and the rotating arm mechanism;

[0038] Figure 4 for Figure 3 A cross-sectional view of BB;

[0039] Figure 5 It is a structural schematic diagram of the auxiliary power mechanism and the swing arm mechanism;

[0040] Figure 6 It is a structural schematic diagram of the closed position during the automatic opening and closing process of the air deflector opening and closing mechanism;

[0041] Figure 7 It is a structural schematic diagram of the intermediate position during the automatic opening and closing process of the air deflector opening and closing mechanism;

[0042] Figure 8 It is a structural schematic diagram of the open position of the air deflector cover opening and closing mechanism during the automatic opening and closing process;

[0043] Fig. 9 It is a structural schematic diagram of the closed position of the air deflector opening and closing mechanism during manual opening and closing;

[0044] Fig.10It is a structural schematic diagram of the intermediate position during the manual opening and closing process of the air deflector opening and closing mechanism;

[0045] Fig.11 This is a schematic diagram of the closed state of the opening and closing mechanism of the air deflector;

[0046] Fig.12 It is a schematic diagram of the opening state of the air deflector cover opening and closing mechanism;

[0047] Wherein, the accompanying drawings are marked as follows:

[0048] 1. Fairing cover;

[0049] 2. Support plate;

[0050] 3. Rotating arm mechanism; 31. First rotating arm; 32. Connecting member; 33. Pushing member; 34. Second rotating arm;

[0051] 4. Power mechanism; 41. Electric drive member; 42. First adapter; 43. First support;

[0052] 5. Auxiliary power mechanism; 51. Gas spring; 52. Second adapter; 53. Third support;

[0053] 6. Locking device; 61. Housing; 62. Locking member; 63. Elastic member;

[0054] 7. Adapter. DETAILED DESCRIPTION

[0055] 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.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0057] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0058] The technical solution of the present invention is described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0059] As attached Figure 1 -Attached Fig.12 As shown, in an illustrative embodiment of a deflector cover opening and closing mechanism of the present invention, the deflector cover opening and closing mechanism is suitable for trains that cannot provide an air source to the front end opening and closing mechanism, such as low-floor trams, etc. The deflector cover opening and closing mechanism includes a support plate 2, a rotating arm mechanism 3, a power mechanism 4 and an auxiliary power mechanism 5.

[0060] The support plate 2 is fixed to the front end of the train body. The support plate 2 serves as a bearing platform and is used to uniformly fix the swing arm mechanism 3, the power mechanism 4 and the auxiliary power mechanism 5 to the train body, thereby forming an integral support structure. The support plate 2 is fixedly connected to the body through a reasonable installation method (such as welding, bolt connection, etc.) to ensure that the components on the support plate 2 remain stable during the opening and closing process of the air deflector 1.

[0061] One end of the rotating arm mechanism 3 is connected to the support plate 2, and the other end is fixedly connected to the air deflector 1. A cylindrical pusher 33 is provided on the rotating arm mechanism 3.

[0062] The power mechanism 4 includes a first adapter seat 42 and an electric drive member 41 .

[0063] The first adapter seat 42 is rotatably connected to the support plate 2 via a rotation axis and can rotate around the rotation axis.

[0064] The electric drive member 41 is an electric cylinder, whose cylinder body is fixedly mounted on the support plate 2 through the first support 43, and whose power output end is hinged with the first adapter seat 42 to drive the first adapter seat 42 to rotate. The first adapter seat 42 is provided with an arc-shaped guide groove, which includes a first end and a second end. The pusher 33 of the rotating arm mechanism 3 is slidably arranged in the guide groove, and slides between the first end and the second end when the first adapter seat 42 rotates.

[0065] The auxiliary power mechanism 5 includes a second adapter seat 52 and a gas spring 51. One end of the gas spring 51 is fixedly mounted on the support plate 2 through the second support, and the other end is hinged to the second adapter seat 52. The second adapter seat 52 is rotatably connected to the support plate 2 through a rotating shaft and can rotate around the rotating shaft.

[0066] In this embodiment, the rotating shaft passes through the surface of the support plate 2 and is rotatably connected to the support plate 2. One end of the rotating shaft is fixedly connected to the first adapter seat 42, and the other end is fixedly connected to the second adapter seat 52, so that the first adapter seat 42 and the second adapter seat 52 rotate synchronously.

[0067] During the automatic opening and closing process of the air deflector 1, the power mechanism 4 and the auxiliary power mechanism 5 provide motion power for the air deflector 1 in stages. Specifically, the automatic opening process of the air deflector 1 passes through the closed position, the middle position, and the open position in sequence. During this process, the movement from the closed position to the middle position is the first opening stage, and the movement from the middle position to the open position is the second opening stage; the automatic closing process of the air deflector 1 passes through the open position, the middle position, and the closed position in sequence. During this process, the movement from the open position to the middle position is the first closing stage, and the movement from the middle position to the closed position is the second closing stage; wherein, the first opening stage and the first closing stage are both driven by the electric cylinder, and the second opening stage and the second closing stage are both driven by the gas spring 51, thereby realizing the automatic opening and closing of the air deflector door.

[0068] The support plate 2, the rotating arm mechanism 3, the power mechanism 4 and the auxiliary power mechanism 5 are respectively arranged in two groups on both sides of the front end of the train, and are arranged opposite to each other. The two groups of rotating arm mechanisms 3 are respectively connected to the two ends of the length direction of the deflector 1, and the two groups of power mechanisms 4 and the auxiliary power mechanism 5 operate synchronously to ensure the balance of the opening and closing process of the deflector door.

[0069] As attached Fig.11 -Attached Fig.12 As shown, when the deflector opening and closing mechanism is in the closed state, it is integrated with the train body to protect the internal components of the train and ensure the aesthetics of the train. When the deflector opening and closing mechanism is in the open state, the hook extends from the inside of the body to achieve reconnection with another train.

[0070] In order to keep the air deflector door at the corresponding position when it is open or closed, in some embodiments of the present invention, when the air deflector 1 is in the closed state, the gas spring 51 continuously provides the air deflector 1 with a driving force to keep it closed through the swing arm mechanism 3, so that the air deflector 1 maintains a stable closed state; in this state, the pushing member 33 is located at the first end of the guide groove.

[0071] When the air deflector 1 is in the open state, the gas spring 51 provides the air deflector 1 with a driving force to keep it open through the swing arm mechanism 3, so that the air deflector 1 maintains a stable open state; in this state, the pusher 33 is located at the second end of the guide groove.

[0072] In some embodiments of the present invention, during the automatic opening process of the air deflector 1, it passes through the closed position, the intermediate position and the open position in sequence. The movement from the closed position to the intermediate position is the first opening stage, and the movement from the intermediate position to the open position is the second opening stage. During the automatic opening process, when the air deflector 1 is in the closed position, the intermediate position and the open position, the state of the rotating arm mechanism 3 is as shown in the attached figure. Figure 6 -Attached Figure 8 shown.

[0073] During the movement of the air deflector 1 from the closed position to the intermediate position, the power output end of the electric drive 41 extends to drive the first adapter 42 to rotate in the first direction, and the pusher 33 remains at the first end of the guide groove and rotates with the first adapter 42 under the push of the groove wall, thereby driving the arm mechanism 3 to move, providing an opening driving force for the air deflector 1, so that the air deflector 1 moves to the intermediate position. During this process, the gas spring 51 always provides the air deflector 1 with a closing driving force opposite to the opening driving force, and the closing driving force provided by the gas spring 51 during this process is less than the opening driving force provided by the electric drive 41.

[0074] During the movement of the air deflector 1 from the middle position to the open position, the electric drive component 41 remains unchanged, the gas spring 51 exceeds its own mechanical critical point and provides the air deflector 1 with an opening driving force through the swing arm mechanism 3, so that the air deflector 1 continues to move to the open position. During this process, the push member 33 slides from the first end to the second end in the guide groove.

[0075] In some embodiments of the present invention, during the automatic closing process of the air deflector 1, it passes through the open position, the intermediate position and the closed position in sequence; the movement from the open position to the intermediate position is the first closing stage, and the movement from the intermediate position to the closed position is the second closing stage. During the automatic closing process, when the air deflector 1 is in the closed position, the intermediate position and the open position, the state of the rotating arm mechanism 3 is as shown in the attached figure. Figure 6 -Attached Figure 8 shown.

[0076] When the air deflector 1 moves from the open position to the middle position, the power output end of the electric drive 41 retracts, driving the first adapter 42 to rotate in the second direction. The pusher 33 is located at the second end of the guide groove, and rotates with the first adapter 42 under the push of the groove wall, thereby driving the arm mechanism 3 to move, providing a closing driving force for the air deflector 1, so that the air deflector 1 moves to the middle position. In this process, the gas spring 51 always provides the air deflector 1 with a closing driving force opposite to the opening driving force, and the closing driving force provided by the gas spring 51 in this process is less than the opening driving force provided by the electric drive 41.

[0077] During the movement of the air deflector 1 from the middle position to the closed position, the electric drive component 41 remains unchanged, the gas spring 51 crosses the mechanical critical point and provides a closing driving force for the air deflector 1 through the swing arm mechanism 3, so that the air deflector 1 continues to move to the closed position. During this process, the push member 33 slides from the second end to the first end in the guide groove.

[0078] In the above-mentioned schematic embodiment, the electric drive 41 provides rotational power to the first adapter 42, and the groove wall of the guide groove on the first adapter 42 drives the pusher 33 on the swing arm mechanism 3 to move, thereby driving the rotation of the swing arm mechanism 3, thereby driving the opening and closing of the deflector 1 in the first stage. At the same time, the gas spring 51 serves as an auxiliary power mechanism 5 to provide additional power support for the deflector 1 in the second stage. Through the staged power output of the power mechanism 4 and the auxiliary power mechanism 5, the automatic opening and closing of the deflector door is realized, and the stability and efficiency of the automatic opening and closing of the deflector door are improved. At the same time, since the electric drive 41 does not need to provide a power source for the entire stroke, the requirement for its extension stroke is relatively small, which can effectively reduce the volume of the electric drive 41 and reduce the space occupied by the opening and closing mechanism at the front end of the train.

[0079] In some embodiments of the present invention, during the manual opening process of the air deflector 1, an external opening driving force is applied to the air deflector 1 to overcome the closing driving force provided by the gas spring 51. During this process, the pusher 33 slides from the first end of the guide groove to the second end. During the automatic closing process, when the air deflector 1 is in the closed position and the intermediate position, the state of the rotating arm mechanism 3 is as shown in the attached figure. Fig. 9 -Attached Fig.10 shown.

[0080] In some embodiments of the present invention, a locking device 6 is further included, as shown in the attached Figure 4 As shown, the locking device 6 is installed at the hinge between the power output end of the electric drive member 41 and the first adapter seat 42, and includes a housing 61, a locking member 62 and an elastic member 63.

[0081] The housing 61 is cylindrical, and one end is fixedly connected to the first adapter 42. The locking member 62 is a locking stud, which is slidably disposed in the housing 61, and the elastic member 63 is a locking spring, which is disposed in the housing 61 and sleeved on the outside of the locking member 62.

[0082] A locking position and an unlocking position are provided along the sliding direction of the locking member 62 in the housing 61 .

[0083] When the locking member 62 slides to the locking position, the locking member 62 is in a state of extending out of the shell 61, and the extended end of the locking member 62 passes through the first adapter seat 42 and the power output end of the electric drive member 41, so that the first adapter seat 42 and the power output end of the electric drive member 41 are hinged together. At this time, the electric drive member 41 can push the first adapter seat 42 to rotate.

[0084] When the locking member 62 slides to the unlocking position, the first adapter 42 and the power output end of the electric drive member 41 are separated, and their respective actions do not affect each other.

[0085] The elastic member 63 enables the locking member 62 to be firmly fixed no matter in the "locking position" or the "unlocking position".

[0086] The locking device 6 can effectively control the connection state between the first adapter 42 and the electric drive member 41, so that the opening and closing mechanism has the locking and unlocking functions, ensuring the controllability of the power output, and preventing the air deflector 1 from opening and closing abnormally due to external force or misoperation. In addition, the combination structure of the locking member 62 and the elastic member 63 is simple, highly reliable, and easy to install and maintain.

[0087] In some embodiments of the present invention, the arm mechanism 3 includes a first arm 31 and a connecting member 32, wherein one end of the first arm 31 is hinged to the support plate 2, and the other end is hinged to the connecting member 32; one end of the connecting member 32 away from the first arm 31 is fixedly connected to the air deflector 1; and the pushing member 33 is fixedly arranged on the first arm 31, which passes through the first arm 31, one end is connected to the first adapter seat 42, and the other end is connected to the second adapter seat 52. Through the joint action of the first arm 31 and the connecting member 32, a stable mechanical transmission structure is formed, which can effectively transmit the movement of the adapter seat to the air deflector 1, and ensure the stability and synchronization of the opening and closing action of the air deflector 1.

[0088] In some embodiments of the present invention, the rotating arm mechanism 3 further includes a second rotating arm 34, which is arranged in parallel with the first rotating arm 31, one end of which is hinged to the support plate 2, and the other end of which is hinged to the connecting member 32. By adding the second rotating arm 34, the mechanical structure of the opening and closing mechanism of the air deflector is further optimized, the load is dispersed, the force on a single rotating arm is reduced, and a transmission mechanism with multiple hinge points is formed, thereby enhancing the stability and load distribution uniformity of the air deflector 1 when it is opened and closed.

[0089] In some embodiments of the present invention, the power mechanism 4 and the auxiliary power mechanism 5 are respectively arranged on both sides of the support plate 2 to ensure that the forces on both sides are balanced.

[0090] In some embodiments of the present invention, an adapter 7 is further included, and the arm mechanism 3 is connected to the air deflector 1 through the adapter 7. The adapter 7 can effectively adjust the connection angle and position between the arm mechanism 3 and the air deflector 1 to ensure more accurate force transmission and achieve a stable connection between the arm mechanism 3 and the arc surface inside the air deflector 1. In this embodiment, the connecting member 32 is an L-shaped metal clamp.

[0091] The working principle of the opening and closing mechanism provided by the present invention is explained below in conjunction with a specific embodiment.

[0092] In this specific embodiment, the specific structure of the opening and closing mechanism is as shown in the attached Figure 1 -Attached Fig.10 shown.

[0093] The support plate 2 is connected to the vehicle body.

[0094] One end of the first rotating arm 31 is connected to the support plate 2 , and the other end is connected to the connecting piece 32 . One end of the adapter 7 away from the first rotating arm 31 is fixedly connected to the deflector door.

[0095] One end of the gas spring 51 is connected to the support plate 2 through the second support, and the other end is hinged to the second adapter seat 52. One end of the electric cylinder is connected to the support plate 2 through the first support 43, and the other end is hinged to the first adapter seat 42 through the locking device 6.

[0096] The first adapter seat 42 and the second adapter seat 52 can rotate around the rotation axis driven by the electric drive member 41 and the gas spring 51 respectively.

[0097] One end of the pusher 33 disposed on the first rotating arm 31 is fixedly connected to the second adapter seat 52, and the other end is slidably disposed in a special guide groove of the first adapter seat 42, and can rotate between the first end and the second end in the groove.

[0098] The automatic opening process of the opening and closing mechanism provided in this specific embodiment is:

[0099] The first stage is from the "closed position" to the "middle position". At this time, the first end of the guide groove on the first adapter seat 42 contacts the pushing member 33. When the electric cylinder provides a driving force to start pushing the first adapter seat 42 to rotate, the pushing member 33 can force the first rotating arm 31 to rotate, thereby overcoming the closing driving force provided by the gas spring 51, so that the opening and closing mechanism reaches the "middle position".

[0100] After reaching the "middle position", the second-stage electric cylinder stops moving. At this time, the gas spring 51 has crossed its mechanical critical point, that is, the "dead point" position, and it changes from initially providing a closing driving force to providing an opening driving force. Then, the driving force provided by the gas spring 51 is switched to the pushing member 33 to cause the first rotating arm 31 to continue to rotate until it reaches the "open position". The pushing member 33 slides from the first end to the second end in the guide groove of the first adapter seat 42.

[0101] After reaching the open position, the gas spring 51 continues to provide a locking force to keep the opening, so that the opening and closing mechanism is stably maintained in the locked position.

[0102] The automatic closing process of the opening and closing mechanism provided in this specific embodiment is:

[0103] The first stage is from the "open position" to the "middle position". At this time, since the second end of the guide groove on the first adapter seat 42 is in contact with the push member 33, the driving force is still provided by the electric cylinder, which begins to retract and drives the first adapter seat 42 to rotate in the opposite direction, and forces the first rotating arm 31 to rotate through the push member 33, overcoming the opening force provided by the gas spring 51, so that the opening and closing mechanism reaches the "middle position".

[0104] After reaching the "middle position", the second-stage electric cylinder stops moving and reaches the closed position. At this time, the gas spring 51 once again crosses its mechanical critical point, that is, the "dead point" position, and changes from initially providing an opening driving force to providing a closing driving force. The driving force is then provided by the gas spring 51 to cause the first rotating arm 31 to continue rotating through the pushing member 33 until it reaches the "closed position". The pushing member 33 slides from the second end to the first end in the guide groove of the first adapter seat 42.

[0105] After reaching the closed position, the gas spring 51 continues to provide a locking force to keep the opening and closing mechanism closed, so that the opening and closing mechanism is stably maintained in the locked position.

[0106] The manual opening process of the opening and closing mechanism provided in this specific embodiment is as follows:

[0107] When the electric cylinder has no power or fails, the electric cylinder cannot move, automatic operation cannot be achieved, and people cannot manually unlock or replace and repair the electric cylinder when the deflector door is closed.

[0108] At this time, although the electric cylinder cannot be extended, due to the special guide groove design of the first adapter seat 42, the operator only needs to overcome the closing force of the gas spring 51 and manually pull the opening and closing mechanism deflector door to rotate the first rotating arm 31, and the pushing member 33 slides from the first end to the second end in the guide groove of the first adapter seat 42.

[0109] In this intermediate position, the deflector door has changed from a fully closed position to a semi-open position, and the operator can observe all the internal components of the opening and closing mechanism from the outside, and then can unlock the locking device 6, retract the locking stud, separate the electric cylinder and the first adapter 42, and then continue to pull the deflector door until it is fully opened, thereby realizing manual operation in an emergency.

[0110] 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.

[0111] 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 shroud opening and closing mechanism, characterized in that: include: A support plate, fixedly mounted on the train body; A rotating arm mechanism, one end of which is connected to the support plate, and the other end of which is connected to the air deflector; the rotating arm mechanism is provided with a pushing member; The power mechanism comprises a first adapter and an electric drive member; the first adapter is rotatably connected to the support plate; The electric drive member is fixedly mounted on the support plate, and its power output end is hinged to the first adapter seat to drive the first adapter seat to rotate; a guide groove is provided on the first adapter seat, and the pusher is slidably arranged in the guide groove; The auxiliary power mechanism comprises a second adapter and a gas spring; one end of the gas spring is fixedly mounted on the support plate, and the other end is hinged to the second adapter; the second adapter is rotatably connected to the support plate and fixedly connected to the pusher; During the automatic opening and closing process of the deflector, the power mechanism and the auxiliary power mechanism drive the rotating arm mechanism to move in stages, thereby providing movement power for the deflector.

2. The air deflector opening and closing mechanism according to claim 1, characterized in that: When the deflector cover is in a closed state, the gas spring continuously provides a closing driving force for the deflector cover through the rotating arm mechanism, and the pushing member is located at the first end of the guide groove; When the air deflector is in an open state, the gas spring continuously provides an opening driving force for the air deflector through the rotating arm mechanism, and the pushing member is located at the second end of the guide groove.

3. The air deflector opening and closing mechanism according to claim 1 or 2, characterized in that: During the automatic opening process of the deflector cover, it passes through the closed position, the middle position and the open position in sequence; During the movement of the air deflector from the closed position to the intermediate position, the power output end of the electric drive member extends to drive the first adapter seat to rotate in the first direction. The pusher member is located at the first end of the guide groove and rotates with the first adapter seat under the push of the groove wall, thereby driving the rotating arm mechanism to move, providing an opening driving force for the air deflector, so that the air deflector moves to the intermediate position. During the process of the air deflector moving from the middle position to the open position, the electric drive component remains unchanged, the gas spring passes the mechanical critical point and continues to provide the air deflector with an opening driving force through the swing arm mechanism, so that the air deflector continues to move to the open position. During this process, the push member slides from the first end to the second end in the guide groove.

4. The air deflector opening and closing mechanism according to claim 1 or 2, characterized in that: During the automatic closing process of the deflector cover, it passes through the open position, the middle position and the closed position in sequence; During the movement of the air deflector from the open position to the intermediate position, the power output end of the electric drive member retracts, driving the first adapter seat to rotate in the second direction. The pusher member is located at the second end of the guide groove, and rotates with the first adapter seat under the push of the groove wall, thereby driving the rotating arm mechanism to move, providing a closing driving force for the air deflector, so that the air deflector moves to the intermediate position. During the movement of the air deflector from the middle position to the closed position, the electric drive component remains unchanged, the gas spring crosses the mechanical critical point and provides the air deflector with a closing drive force through the swing arm mechanism, so that the air deflector continues to move to the closed position. During this process, the pusher slides from the second end to the first end in the guide groove.

5. The air deflector opening and closing mechanism according to claim 2, characterized in that: During the manual opening of the deflector cover, an external opening driving force is applied to the deflector cover to overcome the closing driving force provided by the gas spring, and during this process, the pusher slides from the first end to the second end of the guide groove.

6. The air deflector opening and closing mechanism according to claim 1, characterized in that: Further including: A locking device, which is installed at the hinge between the power output end of the electric drive component and the first adapter, and includes a housing, a locking component and an elastic component; The housing is fixedly connected to the first adapter, the locking member is slidably disposed in the housing, and the elastic member is sleeved on the outside of the locking member; The locking member has a locking position and an unlocking position in the shell. When the locking member slides to the locking position, the locking member penetrates the first adapter seat and the power output end of the electric drive member, so that the first adapter seat and the power output end of the electric drive member are hinged; when the locking member slides to the unlocking position, the first adapter seat and the power output end of the electric drive member are separated.

7. The air deflector opening and closing mechanism according to claim 1, characterized in that: The pivoting arm mechanism comprises a first pivoting arm and a connecting member, wherein one end of the first pivoting arm is hinged to the support plate, and the other end is hinged to the connecting member; one end of the connecting member away from the first pivoting arm is connected to the air deflector; and the pushing member is arranged on the first pivoting arm.

8. The air deflector opening and closing mechanism according to claim 7, characterized in that: The rotating arm mechanism further comprises a second rotating arm, one end of which is hinged to the supporting plate, and the other end of which is hinged to the connecting member.

9. The air deflector opening and closing mechanism according to claim 1, characterized in that: The power mechanism and the auxiliary power mechanism are respectively arranged on two sides of the support plate.

10. The air deflector opening and closing mechanism according to claim 1, characterized in that: It further comprises a transfer piece, and the rotating arm mechanism is connected to the air deflector via the transfer piece.

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