CN111976760A - Opening and closing mechanism and rail vehicle - Google Patents

Abstract

The opening and closing mechanism comprises a supporting base body, a rotating arm, a first rotating piece and a motion locking mechanism, wherein the rotating arm is rotatably connected with the supporting base body, the first rotating piece and the rotating arm are arranged at intervals, the first rotating piece is rotatably connected with the supporting base body, the first rotating piece is rotatably connected with the rotating arm, the first rotating piece is rotatably connected with the first rotating piece, the motion locking mechanism is arranged on the supporting base body, the motion locking mechanism is connected with the first rotating piece in a matched mode, and when the motion locking mechanism moves, the first rotating piece and the rotating arm move in a four-connecting-rod motion mode; the rail vehicle comprises the opening and closing mechanism. The invention can avoid the mutual interference between the opening and closing mechanism and the moving mechanism of the opening and closing mechanism.

Description

Opening and closing mechanism and rail vehicle

Technical Field

The invention belongs to the technical field of opening and closing of door bodies, and particularly relates to an opening and closing mechanism and a railway vehicle.

Background

The rail vehicle has a clear requirement for the opening position of the pod door and the opening and closing mechanism (a mechanism for driving the pod door to open and close), for example, the opening and closing mechanism and the pod door need to have sufficient opening to prevent the car coupler from interfering with the opening and closing mechanism and the pod door due to the deflection of an angle when the car coupler passes through a curve along with a train. The opening and closing mechanism and the opening position of the air guide cover cabin door are determined by a motion locking mechanism in the opening and closing mechanism.

The opening and closing mechanism in the prior railway vehicle is mostly in a structural form of rotating the pod door around a fixed rotating shaft, and specifically, the opening and closing mechanism comprises a supporting base body, a rotating arm and a motion locking mechanism, wherein the support base body is used for being fixedly connected with a car body (particularly the front end part of a head car) of the railway vehicle, the rotating arm is rotatably connected with the support base body through a rotating shaft with a position unchanged relative to the support base body and is connected with a pod door of the air guide sleeve of the railway vehicle, so as to drive the pod door to synchronously rotate around the rotating shaft, the movement locking mechanism is rotationally connected with the supporting base body, the movement locking mechanism is connected with the rotating arm and is matched with the rotating arm, so as to synchronously rotate on the supporting base body together with the rotating arm, and when the rotating arm drives the pod door to be opened (or closed) to a required position, the rotating arm is restrained from moving at a corresponding position by utilizing a self-locking principle.

However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:

in a scene (for example, the scene for a railway vehicle) in which the opening and closing mechanism and the opening and closing mechanism (for example, the pod) need to be opened at a large angle, it is difficult to avoid a phenomenon in which the opening and closing mechanism connected to the pivot arm of the opening and closing mechanism interferes with another moving mechanism (for example, the motion lock mechanism) of the opening and closing mechanism, and thus the applicability of the opening and closing mechanism of the type described above is impaired.

Disclosure of Invention

The embodiment of the application provides an opening and closing mechanism and a rail vehicle, and solves the technical problem of how to better avoid the phenomenon that the movement mechanisms of the opening and closing mechanism and the opening and closing mechanism interfere with each other, so that the applicability of the opening and closing mechanism is improved.

The embodiment of the application provides an opening and closing mechanism, opening and closing mechanism is including supporting base member, rocking arm, first rotating member, first transmission piece and motion locking mechanism, the rocking arm with it rotates to be connected to support the base member, first rotating member with the rocking arm interval sets up, first rotating member with it rotates to be connected to support the base member, first transmission piece with the rocking arm rotates to be connected, first transmission piece with first rotating member rotates to be connected, motion locking mechanism set up in support on the base member, motion locking mechanism with first rotating member cooperation is connected, establishes the rocking arm with the axis of rotation that takes place between the support base member and rotate relatively around is first axis of rotation, and the same reason, establishes first rotating member with the axis of rotation that takes place between the support base member and rotate relatively around is the second axis of rotation, and establishes the axis of rotation that takes place between the first transmission piece with between the rocking arm and rotate relatively around is the third rotation The first rotating axis, the second rotating axis, the third rotating axis and the fourth rotating axis are parallel to each other and distributed in a quadrilateral shape, and when the motion locking mechanism moves, the first rotating member and the rotating arm move in a four-bar motion mode.

The embodiment of the application also provides a rail vehicle, the rail vehicle comprises a vehicle body, a flow guide cover and an opening and closing mechanism, the flow guide cover is arranged at the end part of the vehicle body, the opening and closing mechanism is connected with the flow guide cover, the opening and closing mechanism comprises a supporting base body, a rotating arm, a first rotating piece and a motion locking mechanism, the supporting base body is fixedly connected with the vehicle body, the rotating arm is rotatably connected with the supporting base body, the rotating arm is fixedly connected with the flow guide cover, the first rotating piece is arranged at an interval with the rotating arm, the first rotating piece is rotatably connected with the supporting base body, the first rotating piece is rotatably connected with the rotating arm, the first rotating piece is rotatably connected with the first rotating piece, the motion locking mechanism is arranged on the supporting base body, and the motion locking mechanism is connected with the first rotating piece in a matching way, the rotation axis around which the rotating arm and the supporting base rotate relatively is set as a first rotation axis, and similarly, the rotation axis around which the first rotating member and the supporting base rotate relatively is set as a second rotation axis, the rotation axis around which the first rotating member and the rotating arm rotate relatively is set as a third rotation axis, and the rotation axis around which the first rotating member and the first rotating member rotate relatively is set as a fourth rotation axis, so that the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are parallel to each other and distributed in a quadrilateral shape, and when the motion locking mechanism moves, the first rotating member and the rotating arm move in a four-bar motion mode.

One or more technical schemes provided by the invention at least have the following technical effects or advantages:

the described embodiment of the invention separates the action part which is matched and connected with the motion locking mechanism on the rotating arm from the rotating arm and converts the action part to other positions so as to lead the action part (namely the first rotating part) to be far away from the rotating arm and rotate around different rotating shafts by connecting the first rotating part and the rotating arm, and simultaneously leads the rotating motion of the action part to be transmitted to the rotating arm in a four-bar motion mode through the converting structure (namely the first transmitting part) so as to ensure that the rotating arm rotates stably along with the action part, thereby enlarging the placing space of the action part and further enlarging the placing space of the motion locking mechanism which is matched and connected with the action part compared with the prior art, the motion locking mechanism is not limited to the position near the rotating arm as in the prior art, so that the phenomenon of mutual interference between the air guide sleeve and the motion locking mechanism is avoided better, and the applicability of the opening and closing mechanism is further improved.

Drawings

FIG. 1 is a schematic view of the entire structure of an opening/closing mechanism according to an embodiment of the present invention;

FIG. 2 is a front view of the opening and closing mechanism of FIG. 1;

FIG. 3 is a schematic view of the first rotating member rotating the rotating arm in FIG. 2 by using a four-bar linkage;

FIG. 4 is a schematic view of the opening and closing mechanism of FIG. 1 from another perspective;

FIG. 5 is a rear view of the opening and closing mechanism of FIG. 4;

FIG. 6 is a schematic view of the mechanism of FIG. 4, which is driven manually by a four-bar linkage;

in the above figures: 10. a support base; 20. a rotating arm; 30. a first rotating member; 31. an arm body; 32. a protruding portion; 40. a first transmission member; 50. a motion locking mechanism; 60. a second rotating member; 70. a third rotating member; 80. a second transmission member; 90. and a telescopic driving cylinder.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be noted that: (1) the terms "inner", "outer", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; (2) when an element is referred to as being "fixed to" or "supported from" another element, it can be directly on the other element or intervening elements may also be present; (3) when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; (4) the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In order to solve the technical problems in the prior art, the technical scheme in the embodiment of the invention has the following general idea:

in order to preferably prevent the opening and closing mechanism (such as a guide cover of a railway vehicle) and the moving mechanism (such as a motion locking mechanism) of the opening and closing mechanism from interfering with each other, embodiments of the present invention provide an opening and closing mechanism which separates and switches an actuating member (corresponding to a first rotating member according to an embodiment of the present invention) on a rotating arm, which is cooperatively connected with the motion locking mechanism, from the rotating arm to another position so that the actuating member is away from the rotating arm and rotates around a different rotating shaft, and at the same time, a switching structure (corresponding to a first transmitting member according to an embodiment of the present invention) is provided so that the rotational motion of the actuating member is transmitted to the rotating arm in a four-bar linkage motion to ensure that the rotating arm rotates along with the actuating member, and thus, the embodiment of the present invention enlarges the installation space of the actuating member relative to the prior art, therefore, the placing space of the motion locking mechanism which is matched and connected with the action part is enlarged, the installation position of the motion locking mechanism is not limited to the vicinity of the rotating arm like the prior art, the phenomenon that the opening and closing mechanism and the motion mechanism of the opening and closing mechanism interfere with each other is avoided better, and the applicability of the opening and closing mechanism is further improved.

In order to better understand the above technical solutions, the following will take a scenario in which the opening and closing mechanism is applied to a rail vehicle as an example, and the above technical solutions will be described in detail with reference to the drawings and specific embodiments of the specification.

Referring to fig. 1 to 6, in order to solve the technical problem of how to better avoid the mutual interference between the opening and closing mechanism and the movement mechanism of the opening and closing mechanism, the present embodiment provides a rail vehicle, which includes a vehicle body, a fairwater hood and the opening and closing mechanism, the fairwater hood is disposed at an end portion of the vehicle body (for example, a front end portion of a head car) to serve as the opening and closing mechanism of the rail vehicle, since the structures of the vehicle body and the fairwater hood are known in the art, the detailed description of the embodiment is omitted herein, the opening and closing mechanism is connected with the fairwater hood to drive the fairwater hood to perform the opening and closing movement, the opening and closing mechanism includes a support base 10, a rotating arm 20, a first rotating member 30, a first transmission member 40 and a movement locking mechanism 50:

the support base 10 is fixedly connected to the vehicle body, the support base 10 is used for supporting other mechanisms (e.g., the rotating arm 20, the first rotating member 30, the first transmission member 40, the motion locking mechanism 50, etc.) of the opening and closing mechanism, and may be an integrally formed structure, and may be formed by fixing a plurality of support structures in a detachable connection (e.g., a bolt connection, etc.) or a non-detachable connection (e.g., a welding, etc.), and the overall structure of the support base 10 is not limited to a plate shape or a frame shape;

the rotating arm 20 is rotatably connected with the support base 10 (including directly connected and indirectly connected through other components, the same applies hereinafter) to be capable of performing a rotating motion, i.e. an opening and closing motion, under the supporting action of the support base 10, in other words, a rotating axis necessarily exists between the rotating arm 20 and the support base 10, so that the rotating arm 20 and the support base 10 perform a relative rotating motion around the rotating axis, at this time, the rotating axis around which the relative rotation between the rotating arm 20 and the support base 10 occurs may be a first rotating axis, the rotating arm 20 is fixedly connected with the pod to drive the pod to perform the opening and closing motion, the rotating arm 20 is a structure known by those skilled in the art, that is, according to actual needs, the rotating arm 20 with different structural forms may be provided by those skilled in the art, for example, as shown in fig. 2, the rotating arm 20 is in an L-shaped plate (or block), the number of the rotating arms 20 is two, and the two rotating arms 20 are symmetrical and arranged in a crossed manner, and it should be noted that, for the specific structure of the rotating arm 20 and the connection relationship between the rotating arm and the pod, the detailed description thereof is omitted in this embodiment since the structure is known to those skilled in the art;

the first rotating member 30 is spaced from the rotating arm 20, and the first rotating member 30 is rotatably connected to the support base 10 to be capable of rotating under the supporting action of the support base 10, that is, a rotating axis necessarily exists between the first rotating member 30 and the rotating arm 20, so that the first rotating member 30 and the rotating arm 20 perform relative rotation movement around the rotating axis, and then according to the first rotating axis, the rotating axis around which the relative rotation between the first rotating member 30 and the rotating arm 20 occurs can be set as a second rotating axis; specifically, as shown in fig. 1 to 6, the first rotating member 30 is a rotating arm, the rotating arm has an arm body 31 and a protruding portion 32, the arm body 31 is plate-shaped, the arm body 31 extends along a straight line, one end of the arm body 31 is rotatably connected (e.g., hinged) with the support base 10, then the second rotation axis is located at the rotation connection position of the arm body 31 and the support base 10, the arm body 31 is connected with the movement locking mechanism 50 in a matching manner so as to be locked under the action of the movement locking mechanism 50 when rotating to a preset limit position, at this time, compared with the prior art, the acting part (i.e., the first rotating member 30) connected with the movement locking mechanism 50 is separated from the rotating arm 20 and switched to other positions so as to be away from the rotating arm 20 and rotate around different rotation axes, and the specific connection manner of the arm body 31 and the movement locking mechanism 50 can be as shown in fig. 1 to 3, namely, the arm body 31 is provided with a groove along the linear direction, correspondingly, the motion locking mechanism 50 is provided with a moving block, the moving block is sleeved in the groove to reciprocate along the groove, and further when the motion locking mechanism 50 rotates, the arm body 31 is driven to rotate by the moving block, of course, a person skilled in the art can also select other connection modes from the known common technical knowledge and the obtained prior art, the extension portion 32 is fixedly connected with the rotating arm 20 so as to synchronously rotate along with the arm body 31, one end of the extension portion 32 extends out of the side portion of the arm body 31 and is rotatably connected with the first transmission member 40, as shown in fig. 1 to 3, the extension portion 32 is in a rod shape, one end of the extension portion 32 is fixed with the side portion of the arm body 31 by means of bolt connection, welding and the like, and the other end of the extension portion 32 extends out of the arm body 31 and;

the first transmission member 40 is rotatably connected to the rotating arm 20, so that the first transmission member 40 rotates relative to the rotating arm 20, that is, a rotation axis necessarily exists between the first transmission member 40 and the rotating arm 20, so that the first transmission member 40 and the rotating arm 20 perform a relative rotation movement around the rotation axis, and according to the above-mentioned set first rotation axis, the rotation axis around which the relative rotation between the first transmission member 40 and the rotating arm 20 occurs can be set as a third rotation axis, and the first transmission member 40 is rotatably connected to the first transmission member 30, so that the first transmission member 40 rotates relative to the first transmission member 30, that is, according to the above-mentioned set first rotation axis, so that a rotation axis necessarily exists between the first transmission member 40 and the first transmission member 30, so that the first transmission member 40 and the first transmission member 30 perform a relative rotation movement around the rotation axis, similarly, the rotation axis around which the first transmission member 40 and the first rotation member 30 rotate relatively may be a fourth rotation axis; specifically, as shown in fig. 1 to 3, the first transmission member 40 has a rod shape, one end of the first transmission member 40 is hinged to the extension portion 32, and the other end of the first transmission member 40 is connected to the rotating arm 20;

the motion locking mechanism 50 is disposed on the supporting base 10, the motion locking mechanism 50 is connected to the first rotating member 30 in a matching manner to drive the first rotating member 30 to rotate, and when the first rotating member 30 rotates to a preset limit position, the first rotating member 30 is constrained, and a specific structure of the motion locking mechanism 50 is common technical knowledge known to those skilled in the art and/or the prior art that can be known, which is not an innovative part of the present invention, and therefore, the present embodiment is not described herein again;

in the above, the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are parallel to each other and distributed in a quadrilateral, so that when the motion locking mechanism 50 rotates, the first rotation member 30, the first transmission member 40 and the rotation arm 20 move on the support base 10 in a four-bar linkage motion, preferably, the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are distributed in a parallelogram, so as to be more beneficial to realize the control of the motion track of the rotation arm 20, it should be noted that the above structure of the present invention is only the minimum unit for realizing the motion in the four-bar linkage motion, and does not limit the above structure to be connected end to end and form a four-bar linkage, which may be provided with other transition elements between the structure and the structure as long as the connected assembly can realize the motion in the four-bar linkage motion, similarly, the above structure is not limited to the connecting rod.

Based on the above, the embodiments described in the present invention have at least the following technical effects or advantages:

the described embodiment of the present invention separates the action part of the pivotal arm 20, which is cooperatively connected with the motion locking mechanism 50, from the pivotal arm 20 and switches to another position by disposing the first rotating member 30 at a distance from the pivotal arm 20 and connecting the motion locking mechanism 50 to the first rotating member 30, and simultaneously connecting the first transmission member 40 between the first rotating member 30 and the pivotal arm 20, so that the action part (i.e., the first rotating member 30) is away from the pivotal arm 20 and rotates around a different rotational axis, and simultaneously, the rotational motion of the action part is transmitted to the pivotal arm 20 in the form of a four-bar linkage motion by the switching structure (i.e., the first transmission member 30) to ensure that the pivotal arm 20 rotates stably with the action part, and thus, the described embodiment of the present invention enlarges the installation space of the action part, and thus enlarges the installation space of the motion locking mechanism 50 cooperatively connected with the action part, the installation position of the movement locking mechanism 50 is not limited to the vicinity of the rotating arm 20 as in the prior art, so that the phenomenon that the air guide sleeve and the movement locking mechanism 50 interfere with each other is avoided, and the applicability of the opening and closing mechanism is further improved.

In order to further enlarge the housing space of the movement locking mechanism 50, with continued reference to fig. 1 to 3, the opening and closing mechanism of the embodiment of the present invention further includes a second rotating member 60, the second rotating member 60 is located between the rotating arm 20 and the first transmission member 40, the second rotating member 60 is rotatably disposed on the supporting base 10 so as to be capable of rotating under the supporting action of the supporting base 10, that is, between the second rotating member 60 and the supporting base 10, there is necessarily a rotation axis, so that the second rotating member 60 and the supporting base 10 perform relative rotation movement around the rotation axis, and according to the above-mentioned first rotation axis, the rotation axis around which the relative rotation between the second rotating member 60 and the supporting base 10 occurs may be a fifth rotation axis, and the fifth rotation axis is coaxial with the first rotation axis, or, the second rotating member 60 and the rotating arm 20 share one rotation axis, the second rotating member 60 is fixed to the rotating arm 20 to drive the rotating arm 20 to rotate synchronously, the second rotating member 60 is connected to the first transmission member 40 to rotate relative to the first transmission member 40, that is, a rotation axis necessarily exists between the second rotating member 60 and the first transmission member 40, so that the second rotating member 60 and the first transmission member 40 perform a relative rotation motion around the rotation axis, and at this time, according to the first rotation axis set above, similarly, the rotation axis around which the relative rotation occurs between the second rotating member 60 and the first transmission member 40 may be a sixth rotation axis, and the sixth rotation axis is coaxial with the third rotation axis, or, the second rotating member 60 and the first transmission member 40 share a rotation axis; specifically, as shown in fig. 1 to 3, the second rotating member 60 has a rod shape, one end of the second rotating member 60 is fixed to the rotating arm 20 and is hinged to the support base 10, the other end of the second rotating member 60 is hinged to the end of the first transmission member 40, and the second rotating member 60, the first transmission member 40, the rotating arm, and the support base constitute a four-bar linkage. Based on the above, the described embodiment of the present invention allows the first rotating member 30 to be further away from the swivel arm 20 by connecting the second rotating member 60 between the swivel arm 20 and the first transmitting member 40, thereby further enlarging the installation space of the first rotating member 30 and further enlarging the installation space of the movement locking mechanism 50.

In order to realize the manual driving of the opening and closing movement of the rotating arm, with continuing reference to fig. 4 to 6, the opening and closing mechanism of the embodiment of the present invention further includes a third rotating member 70 and a second transmission member 80, the third rotating member 70 is rotatably connected to the supporting base 10 to rotate under the supporting action of the supporting base 10, that is, a rotation axis necessarily exists between the third rotating member 70 and the supporting base 10, so that the third rotating member 70 and the supporting base 10 perform a relative rotation movement around the rotation axis, and according to the above-mentioned set first rotation axis, the rotation axis around which the relative rotation between the third rotating member 70 and the supporting base 10 occurs may be set as a seventh rotation axis, and the second transmission member 80 is rotatably connected to the third rotating member 70 to rotate relative to the third rotating member 70, that is, a rotation axis necessarily exists between the second transmission member 80 and the third rotating member 70, the second transmission member 80 and the third rotating member 70 are made to perform a relative rotation movement around the rotation axis, and at this time, according to the set first rotation axis, similarly, the rotation axis around which the relative rotation between the second transmission member 80 and the third rotating member 70 occurs may be set to be an eighth rotation axis, and the second transmission member 80 is rotationally connected to the movement locking mechanism 50 so as to rotate relative to the movement locking mechanism 50, that is, a rotation axis inevitably exists between the second transmission member 80 and the movement locking mechanism 50, so that the second transmission member 80 and the movement locking mechanism 50 perform a relative rotation movement around the rotation axis, and at this time, according to the set first rotation axis, similarly, the rotation axis around which the relative rotation between the second transmission member 80 and the movement locking mechanism 50 occurs may be set to be a ninth rotation axis, and the rotation axis around which the relative rotation between the movement locking mechanism 50 and the support base 10 may be set to be a tenth rotation axis, the seventh rotation axis, the eighth rotation axis, the ninth rotation axis and the tenth rotation axis are mutually parallel and distributed in a quadrilateral shape, so that when the third rotation member 70 is manually driven to rotate, the third rotation member 70, the second transmission member 80 and the movement locking member 50 move in a four-bar linkage movement, so that the rotation arm 20 is driven to perform an opening and closing movement by the movement locking member 50, and preferably, the seventh rotation axis, the eighth rotation axis, the ninth rotation axis and the tenth rotation axis are distributed in a parallelogram shape, thereby further facilitating the control of the movement track of the rotation arm 20;

specifically, as shown in fig. 4 to 6, the third rotating member 70 and the second transmission member 80 are both rod-shaped, one end of the third rotating member 70 is hinged to the supporting base 10, the other end of the third rotating member 70 is hinged to one end of the second transmission member 80, the other end of the second transmission member 80 is hinged to the movement locking mechanism 50, and the third rotating member 70, the second transmission member 80, the movement locking mechanism 50 and the supporting base 10 form a four-bar linkage mechanism.

In order to realize the automatic driving of the opening and closing movement of the swing arm, with continued reference to fig. 1 to 6, the opening and closing mechanism in the embodiment of the present invention further includes a telescopic driving cylinder 90, the telescopic driving cylinder 90 is disposed on the supporting base 10 to be supported by the supporting base 10, and the telescopic driving cylinder 90 is connected to the movement locking mechanism 50 to drive the movement locking mechanism 50 to move; specifically, as shown in fig. 1 to 6, the telescopic driving cylinder 90 is an air cylinder, a cylinder portion of the telescopic driving cylinder 90 is hinged to the support base 10, and a cylinder rod portion of the telescopic driving cylinder 90 is hinged to the movement locking mechanism 50, so that the movement locking mechanism 50 is automatically driven to rotate by the telescopic driving.

In order to more clearly illustrate the present invention, the operation of opening and closing the rotating arm in the above-described embodiment of the present invention is described below by taking the embodiment shown in fig. 1 to 6 as an example:

during automatic operation, the telescopic driving cylinder 90 pushes the motion locking mechanism 50 to rotate around the tenth rotation axis and slide in the groove of the first rotating member 30, the opening and closing mechanism is unlocked, the motion locking mechanism 50 continues to rotate to drive the first rotating member 30 to rotate around the second rotation axis, the rotating arm 20 is driven to rotate around the first rotation axis under the action of the first motion transmission member 40, the pod door is slowly opened (or closed) until the pod door reaches the fully opened (or closed) position, the first rotating member 30 cannot continue to rotate, and the motion locking mechanism 50 realizes the locking of the opening and closing mechanism.

During manual operation, the third rotating member is manually operated to rotate, the movement locking mechanism 50 is driven to rotate around the tenth rotating axis under the action of the second transmission member 80 and slide in the groove of the first rotating member 30, the opening and closing mechanism is unlocked, the second transmission member 80 is manually operated to rotate continuously, the movement locking mechanism 50 drives the first rotating member 30 to rotate around the second rotating axis, the rotating arm 20 is driven to rotate around the first rotating axis under the action of the first transmission member 40, the pod door is slowly opened (or closed) until the pod door reaches a fully opened (or closed) position, the first rotating member 30 cannot rotate continuously, and the movement locking mechanism 50 realizes locking of the opening and closing mechanism.

Claims (8)

1. An opening and closing mechanism, characterized by comprising:

a support base;

the rotating arm is rotatably connected with the supporting base body;

the first rotating piece is arranged at an interval with the rotating arm and is rotationally connected with the supporting base body;

the first transmission piece is rotationally connected with the rotating arm and rotationally connected with the first rotation piece;

the motion locking mechanism is arranged on the support base body and is connected with the first rotating piece in a matched mode;

setting a rotation axis around which the rotating arm and the supporting base rotate relatively to each other as a first rotation axis, and similarly, setting a rotation axis around which the first rotating member and the supporting base rotate relatively to each other as a second rotation axis, setting a rotation axis around which the first rotating member and the rotating arm rotate relatively to each other as a third rotation axis, and setting a rotation axis around which the first rotating member and the first rotating member rotate relatively to each other as a fourth rotation axis, so that the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are parallel to each other and distributed in a quadrilateral shape;

when the motion locking mechanism moves, the first rotating piece, the first transmission piece and the rotating arm move in a four-bar linkage motion mode.

2. The opening/closing mechanism according to claim 1, wherein said first axis of rotation, said second axis of rotation, said third axis of rotation and said fourth axis of rotation are arranged in a parallelogram.

3. The opening-closing mechanism according to claim 1, further comprising:

the second rotating part is connected between the rotating arm and the first rotating part, is rotatably arranged on the supporting base body, is fixed with the rotating arm and is rotatably connected with the first rotating part;

if the rotation axis around which the relative rotation between the second rotating member and the supporting base body occurs is a fifth rotation axis, and the rotation axis around which the relative rotation between the second rotating member and the first transmission member occurs is a sixth rotation axis, the fifth rotation axis is coaxial with the first rotation axis, and the sixth rotation axis is coaxial with the third rotation axis.

4. The opening/closing mechanism according to claim 3, wherein the first rotating member is a rotating arm having an arm body and a protruding portion, the arm body is rotatably connected to the support base, the second rotation axis is located at a position where the arm body is rotatably connected to the support base, the arm body is cooperatively connected to the movement locking mechanism, the protruding portion is fixedly connected to the arm body, one end of the protruding portion protrudes from a side portion of the arm body and is rotatably connected to the first rotating member, the first rotating member and the second rotating member are each in a rod shape, and the first rotating member, the second rotating member, the rotating arm, and the support base constitute a four-bar linkage mechanism.

5. The opening-closing mechanism according to any one of claims 1 to 4, further comprising:

a third rotating member rotatably connected to the support base;

the second transmission piece is rotationally connected with the third rotating piece and is rotationally connected with the motion locking mechanism;

setting a rotation axis around which the third rotating member and the support base member relatively rotate to be a seventh rotation axis, and similarly, setting a rotation axis around which the second transmission member and the third rotating member relatively rotate to be an eighth rotation axis, setting a rotation axis around which the second transmission member and the motion locking mechanism relatively rotate to be a ninth rotation axis, and setting a rotation axis around which the motion locking mechanism and the support base member relatively rotate to be a tenth rotation axis, wherein the seventh rotation axis, the eighth rotation axis, the ninth rotation axis and the tenth rotation axis are mutually parallel and distributed in a quadrilateral shape;

when the third rotating part rotates, the third rotating part, the second transmission part and the motion locking mechanism move in a four-bar linkage motion mode.

6. The opening/closing mechanism according to claim 5, wherein the seventh rotation axis, the eighth rotation axis, the ninth rotation axis and the tenth rotation axis are arranged in a parallelogram.

7. The opening-closing mechanism according to claim 5, further comprising:

the telescopic driving cylinder is arranged on the supporting base body and connected with the motion locking mechanism.

8. The utility model provides a rail vehicle, its characterized in that, rail vehicle includes automobile body, kuppe and operating mechanism, the kuppe sets up in the tip of automobile body, operating mechanism with the kuppe is connected, operating mechanism includes:

the supporting base body is fixedly connected with the vehicle body;

the rotating arm is rotatably connected with the supporting base body and fixedly connected with the air guide sleeve;

the first rotating piece is arranged at an interval with the rotating arm and is rotationally connected with the supporting base body;

the first transmission piece is rotationally connected with the rotating arm and rotationally connected with the first rotation piece;

the motion locking mechanism is arranged on the support base body and is connected with the first rotating piece in a matched mode;

setting a rotation axis around which the rotating arm and the supporting base rotate relatively to each other as a first rotation axis, and similarly, setting a rotation axis around which the first rotating member and the supporting base rotate relatively to each other as a second rotation axis, setting a rotation axis around which the first rotating member and the rotating arm rotate relatively to each other as a third rotation axis, and setting a rotation axis around which the first rotating member and the first rotating member rotate relatively to each other as a fourth rotation axis, so that the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are parallel to each other and distributed in a quadrilateral shape;

when the motion locking mechanism moves, the first rotating piece, the first transmission piece and the rotating arm move in a four-bar linkage motion mode.

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