A driving mechanism for a stop-and-slide door of a railway vehicle

Abstract

The present invention discloses a driving mechanism for a railway vehicle door that stops and moves, which includes a base plate, a driving motor, a driving device, an adaptor power supply, a guide rail mechanism, an electric control unit, a rotating bracket, a linkage device, a closed position stopper assembly, an open position stopper assembly, a self-locking device, and an unlocking device; the self-locking device is arranged in the driving motor, and is used to control the motor output shaft to be locked and rotatable; in the power-on state, the self-locking device is not enabled, the motor output shaft is rotatable, and the electric control unit can control the door to open and close, and in the power-off state, the self-locking device is triggered, the motor output shaft is locked, and the door cannot move; the unlocking device is fixedly mounted on the base plate below the driving motor, and is connected to the driving motor, and is used to unlock when an external force switch is pulled down, so that the motor output shaft can rotate. The present invention provides a driving mechanism for a railway vehicle door that stops and moves, which has a simple structure and can well prevent the door from sliding and squeezing passengers when the power is off.

Description

Technical Field

[0001] The invention belongs to the field of door design in rail transit industry, and in particular relates to a stop-and-slide door driving mechanism for railway vehicles. Background Art

[0002] At present, in the existing technology, some domestic railway vehicles need to use motor output force to maintain balance when the passenger compartment or driver's compartment door encounters a tilt angle when opening and closing the door. If there is no electricity, when the vehicle has a tilt angle while running, the door panel will lose the motor output force, causing the balance to be broken. The door panel slides to the open position or closed position under the action of its own gravity, and passengers will be hit when passing by, and may be injured.

[0003] The electric drive mechanism of the prior art is generally in an electric motion mode. After receiving the door opening signal, the drive component drives the door leaf to open. After a period of time, if there is no door opening signal, the door leaf automatically closes. The electric drive mechanism is normally in the door closing state. When switched to manual mode, the drive device will move forward and backward along the guide direction under the action of external force until it stops at the extreme positions at both ends. In an emergency, power is lost, and the drive mechanism is in a forward and backward tilted state, causing the drive device to slide from the high end to the low end due to gravity. If a passenger passes through this door at this time, it is easy to cause injury or squeezing pain. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a railway vehicle stop-and-slide door driving mechanism which has a simple structure and can well prevent the door from sliding and squeezing passengers when the power is off.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A driving mechanism for a stop-and-slide door for a railway vehicle, comprising a base plate, a driving motor, a driving device, an adaptor power supply, a guide rail mechanism, an electric control unit, a rotating bracket, a linkage device, a closed position stopper assembly, an open position stopper assembly, a self-locking device, and an unlocking device;

[0007] The electronic control unit is fixedly mounted on the bottom plate and electrically connected to the drive motor to control the electric function of the entire drive mechanism;

[0008] The driving motor is fixedly mounted on the bottom plate and is used for power output;

[0009] The driving device is fixedly mounted on the bottom plate on one side of the driving motor and is used to drive the rotating bracket to move;

[0010] One end of the linkage device is connected to the drive motor, and the other end is connected to the drive device, so as to transmit power to the drive device;

[0011] The rotating bracket is connected to the driving device and is used to transmit force to the door and control the movement of the door;

[0012] The guide rail mechanism is fixedly mounted on the bottom plate below the driving device and is used to guide the movement of the door;

[0013] The adaptor power supply is fixedly mounted on the bottom plate and electrically connected to the electronic control unit, and can be converted into a safe voltage within a certain voltage range;

[0014] The door closing stop assembly is fixedly mounted on a bottom plate below the drive motor and close to one end of the guide rail mechanism, and is electrically connected to the electronic control unit, and is used to limit the position of the door closing and sense the door closing position, thereby sending an electrical signal to the electronic control unit to cut off power;

[0015] The door opening stop assembly is fixedly mounted on the bottom plate near the other end of the guide rail mechanism and is electrically connected to the electric control unit, and is used to limit the door opening position and sense the door opening position, and then send an electrical signal to the electric control unit to cut off the power;

[0016] The self-locking device is arranged in the driving motor, and is used to control the motor output shaft to be locked and rotatable; when the power is on, the self-locking device is not enabled, the motor output shaft can be rotated, and the electronic control unit can control the door to open and close; when the power is off, the self-locking device is triggered, the motor output shaft is locked, and the door cannot be moved;

[0017] The unlocking device is fixedly mounted on the bottom plate below the driving motor and is connected to the driving motor. It is used to unlock the motor when the external force switch is pulled down so that the motor output shaft can rotate.

[0018] Furthermore, the driving motor includes a motor body and a controller connected to the motor body. A motor shaft is provided inside the motor body, and the motor shaft is connected to a self-locking device.

[0019] Furthermore, the self-locking device is arranged inside the controller, and the self-locking device includes a return spring, a coil, a clutch plate and a friction plate. The friction plate is arranged around the motor shaft and connected to the motor shaft. The return spring is fixedly arranged on the inner wall of the controller and is coaxial with the motor shaft. The coil is fixedly arranged on the inner wall of the controller and is distributed around the return spring. The clutch plate is movably arranged between the friction plate and the coil. When the power is on, the clutch plate fits with the top of the coil and the return spring; when the power is on, the coil attracts the clutch plate, and the motor shaft can rotate normally. When the power is off, the return spring in the compressed state returns to push the clutch plate and the friction plate to fit together, and the motor shaft is locked and cannot rotate.

[0020] Furthermore, the unlocking device includes a trigger rod, two paddles, a push-pull rod, a compression spring, a steel wire rope, a tension guide tube, a first clamp, a second clamp and a third clamp; the first clamp, the second clamp and the third clamp are respectively fixedly connected to the bottom plate; the push-pull rod is limited by the first clamp and the second clamp and is slidably connected to the two clamps; the paddle can be slidably sleeved on the push-pull rod; the upper end of the trigger rod penetrates into the interior of the controller and is close to the clutch plate, and the lower ring of the trigger rod is sleeved on the push-pull rod and is located between the two paddles; the compression spring sleeve On the push-pull rod, one end is connected to the second clamping plate, and the other end is connected to the nearest paddle; one end of the steel wire rope is connected to the push-pull rod, and the other end is connected to the tension guide tube; the tension guide tube is fixedly connected to the third clamping plate, and the tension guide tube is connected to the external tension switch; when a power outage occurs suddenly, the external force switch is pulled down, the trigger rod pushes the clutch plate away from the friction plate, the motor shaft is unlocked and can rotate normally, and the external force switch is reset. The compression spring relies on the reset force to push the trigger rod back to its original position, and the return spring returns to its original position to push the clutch plate and the friction plate to fit together, and the motor shaft is locked and cannot rotate.

[0021] Furthermore, the driving device includes a screw mechanism and a trapezoidal nut, the screw mechanism is connected to the linkage device, the trapezoidal nut is threadedly connected to the screw mechanism, and a first positioning bracket and a second positioning bracket are provided at both ends of the screw mechanism, and the first positioning bracket and the second positioning bracket are respectively fixedly connected to the base plate.

[0022] Furthermore, the rotating bracket includes an upper rotating shaft, a lower rotating shaft, a mounting block and a rocker arm, the upper rotating shaft is fastened with the trapezoidal nut, the rocker arm is rotatably connected to the upper rotating shaft, the lower rotating shaft is fastened with the rocker arm, and the mounting block is rotatably connected to the lower rotating shaft.

[0023] Furthermore, the guide rail mechanism includes two moving slide blocks and a straight guide rail, the straight guide rail is fixedly connected to the bottom plate, and the moving slide block is slidably connected to the straight guide rail.

[0024] Furthermore, the linkage device includes a linkage inner shaft assembly, a screw mechanism pressure plate and a motor pressure plate. The linkage inner shaft assembly is located between the two pressure plates and is respectively connected to the two pressure plates. The screw mechanism pressure plate is connected to the driving device, the motor pressure plate is connected to the driving motor, and the screw mechanism pressure plate is tightly connected to the motor pressure plate.

[0025] By adopting the above technical solution, the present invention has the following beneficial effects:

[0026] 1. The present invention realizes the locking of the motor shaft when the power is off by setting the self-locking device, limits the sliding of the door, improves the safety factor of the driving mechanism when working, and ensures the safety of passers-by; 2. Because the motor is self-locking after stopping, compared with the previous motor that needs to continuously provide holding force when opening and closing the door, the present invention increases the service life of the motor and saves electric energy;

[0027] 3. The present invention solves the problem of door locking in the event of sudden power failure through the design of the unlocking device, and the structure is convenient and labor-saving;

[0028] 4. The mechanism of the present invention is purchased in a split connection, and the modular parts are connected, which is simple to install, convenient for maintenance and repair, and also conducive to the design of door bodies with different openings;

[0029] 5. By using the guide rail mechanism to bear the load and the screw drive method, the problem of overweight loading and large driving force is effectively solved;

[0030] 6. Through the integrated assembly module design of power supply, motor and door control, the structure is simplified, the size is compact and the adaptability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is an enlarged schematic diagram of the local structure of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the driving motor of the present invention;

[0034] Figure 4 It is a cross-sectional schematic diagram of the self-locking device of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the unlocking device of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the driving device of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the rotating bracket of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the guide rail mechanism of the present invention;

[0039] Fig. 9 is a cross-sectional schematic diagram of the linkage device of the present invention;

[0040] Among them, 1. base plate, 2. drive motor, 3. drive device, 4. adapter power supply, 5. guide rail mechanism, 6. electronic control unit, 7. rotating bracket, 8. linkage device, 9. closed position stop assembly, 10. open position stop assembly, 12. unlocking device, 111. return spring, 112. coil, 113. clutch plate, 114. friction plate, 121. trigger rod, 122. two paddles, 123. push-pull rod, 124. compression spring, 125. wire rope, 126. tension guide tube, 1 27. First clamping plate, 128. Second clamping plate, 129. Third clamping plate, 201. Motor body, 202. Controller, 203. Motor shaft, 301. Screw mechanism, 302. Trapezoidal nut, 303. First positioning bracket, 304. Second positioning bracket, 501. Motion slider, 502. Straight guide rail, 701. Upper rotating shaft, 702. Lower rotating shaft, 703. Mounting block, 704. Rocker, 801. Linkage inner shaft assembly, 802. Screw mechanism pressure plate, 803. Motor pressure plate. DETAILED DESCRIPTION

[0041] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0042] like Figure 1 , 2As shown, in an embodiment of the present invention, a driving mechanism for a stop-and-slide door for a railway vehicle includes a base plate 1, a driving motor 2, a driving device 3, an adapter power supply 4, a guide rail mechanism 5, an electronic control unit 6, a rotating bracket 7, a linkage device 8, a closed-position stop assembly 9, an open-position stop assembly 10, a self-locking device, and an unlocking device 12. The electronic control unit 6 is fixedly mounted on the base plate 1 by screws, and is electrically connected to the drive motor 2, and is used to control the electric function of the entire drive mechanism. The electronic control unit 6 can control the drive motor 2 to rotate forward or reverse to realize the movement of the door switch; the drive motor 2 is fixedly mounted on the base plate 1 by screws for power output; the drive device 3 is fixedly mounted on the base plate 1 on one side of the drive motor 2 by screws, and is used to drive the rotating bracket 7 to move. The built-in driving component of the drive device 3 can drive the rotating bracket 7 to move. According to the forward and reverse power of the drive motor 2, the movement of the rotating bracket 7 in different directions can be realized; one end of the linkage device 8 is connected to the drive motor 2, and the other end is connected to the drive device 3, and is used to transmit power to the drive device 3. The linkage device 8, the drive motor 2, and the drive device 3 transmit power coaxially; the rotating bracket 7 is connected to the drive device 3, and is used to transmit force to the door and control the movement of the door. The door is fixedly connected to the rotating bracket 7; the guide rail mechanism 5 is fixedly installed It is installed on the base plate 1 below the driving device 3 and is used to guide the movement of the door; the adapter power supply 4 is fixedly installed on the base plate 1 and is electrically connected to the electronic control unit 6, and can be converted into a safe voltage within a certain voltage range; the closed position stopper assembly 9 is fixedly installed on the base plate below the driving motor 2 and close to one end of the guide rail mechanism 5, and is electrically connected to the electronic control unit 6, and is used to limit the position of the closed door and the sensing door closed position. When the door is sensed to be closed, the closed position stopper assembly 9 will send a signal to the electronic control unit 6 to cut off the power, and the self-locking device will automatically lock after the driving motor 2 is out of power to prevent sliding after the door is closed; the open position stopper assembly 10 is fixedly installed on the base plate near the other end of the guide rail mechanism 5, and is electrically connected to the electronic control unit 6, and is used to limit the position of the opened door and the sensing door is opened. When the door is sensed to be opened, the open position stopper assembly 10 will send a signal to the electronic control unit 6 to cut off the power, and the self-locking device will automatically lock after the driving motor 2 is out of power to prevent sliding after the door is opened. The self-locking device is arranged in the driving motor 2, and is used to control the locking and rotatability of the motor output shaft; when the power is on, the self-locking device is not enabled, the motor output shaft is rotatable, and the electronic control unit 6 can control the door to open and close. When the power is off, the self-locking device is triggered, the motor output shaft is locked, and the door cannot move. Such a setting can prevent the sliding of the door from squeezing and injuring passengers in the event of a sudden power outage, and can also save energy and electricity in most static states. In addition to unlocking when powered on, the unlocking device 12 can also be used for manual unlocking. The unlocking device 12 is fixedly mounted on the bottom plate 1 below the driving motor 2 and is connected to the driving motor 2. It is used to unlock when the external force switch is pulled down, so that the motor output shaft can rotate. The unlocking device 12 is generally used in the event of an emergency power outage. Such a setting can ensure that passengers get off the vehicle in a timely and safe manner.

[0043] Among them, in this embodiment, the driving motor 2 specifically includes a motor body 201 and a controller 202 connected to the motor body 201. A motor shaft 203 is provided inside the motor body 201. The motor shaft 203 is connected to a self-locking device. The self-locking device can limit the rotation of the motor shaft 203 when self-locking. The self-locking device is arranged inside the controller 202. The self-locking device specifically includes a return spring 111, a coil 112, a clutch plate 113 and a friction plate 114. The friction plate 114 is arranged around the motor shaft 203 and connected to the motor shaft 203 by a pin key. The friction plate 114 is annular and the friction plate 114 will rotate with the motor shaft 203. The return spring 111 is fixedly arranged on the inner wall of the controller 202 through a mounting plate and is coaxial with the motor shaft 203. The coil 112 is also fixedly arranged on the inner wall of the controller 202 through a mounting plate and is distributed around the return spring 111. The coil 112 is also fixedly arranged on the inner wall of the controller 202 through a mounting plate and is distributed around the return spring 111. The number 2 is the same as the number of clutch plates 113, which can be two or other numbers; the clutch plate 113 is movably arranged between the friction plate 114 and the coil 112. When the power is on, the clutch plate 113 is in contact with the top of the coil 112 and the return spring 111; when the power is on, the coil 112 attracts the clutch plate 113, and the motor shaft 203 can rotate normally. When the power is off, the return spring 111 in the compressed state returns to push the clutch plate 113 and the friction plate 114 to fit together, and the motor shaft 203 is locked and cannot rotate. This arrangement is simple and labor-saving, and the unlocking and self-locking reaction when the power is on and off is quick and effective, which protects the passengers more safely.

[0044] In this embodiment, the unlocking device 12 specifically includes a trigger rod 121, two paddles 122, a push-pull rod 123, a compression spring 124, a wire rope 125, a tension guide tube 126, a first clamping plate 127, a second clamping plate 128 and a third clamping plate 129; the first clamping plate 127, the second clamping plate 128 and the third clamping plate 129 are respectively fixedly connected to the bottom plate 1 by screws; the push-pull rod 123 is limited by the first clamping plate 127 and the second clamping plate 128 and is slidably connected to the two clamping plates, and the push-pull rod 123 passes through the two clamping plates and can slide forward and backward by external force; the paddle 122 can slide into the bottom plate 127, the second clamping plate 128 and the third clamping plate 129. On the push-pull rod 123, a nut is fixedly installed at the front of the push-pull rod 123, and under the action of external force, the paddle 122 can be moved to the rear side with the trigger rod 121; the upper end of the trigger rod 121 penetrates into the controller 202 and is close to the clutch plate 113, and the lower ring of the trigger rod 121 is sleeved on the push-pull rod 123 and is located between the two paddles 122. Under the action of external force, the two paddles 122 can move the trigger rod 121 to the rear side; the compression spring 124 is sleeved on the push-pull rod 123, and one end is connected to the second clamping plate 128. The second clamping plate 128 is fixed, and one end of the connected compression spring 124 is also fixed. The other end of the spring 124 is connected to the nearest paddle 122. Under the action of external force, the nearest paddle 122 will move backward and compress the compression spring 124. When the external force is released, the compression spring 124 will reset, pressing the paddle 122 to reset forward, driving the trigger rod 121 to reset as well. One end of the wire rope 125 is connected to the push-pull rod 123 by a screw, and the other end is connected to the tension guide 126. The tension guide 126 is fixedly connected to the third clamping plate 129, and the tension guide 126 is connected to the external tension switch. When a sudden power failure occurs, the external force switch is pulled down, and the external force is transmitted through the tension guide 126. The steel wire rope 125 is pulled, and then the push-pull rod 123 is pulled to move backward, driving the paddle 122 and the trigger rod 121 to move backward, and the trigger rod 121 will push the clutch plate 113 away from the friction plate 114, and the motor shaft 203 is unlocked and can rotate normally. After the external force switch is reset, there is no external force on the steel wire rope 125 and the push-pull rod 123, and the compression spring 124 relies on the reset force to push the paddle 122 and then push the push-pull rod 123 and the trigger rod 121 back to the original position, and the return spring 111 returns to push the clutch plate 113 and the friction plate 114 to fit together, and the motor shaft 203 is locked and cannot rotate. Such a structure is simple and labor-saving, and the unlocking is quick and convenient.

[0045] Among them, in this embodiment, the driving device 3 specifically includes a screw mechanism 301 and a trapezoidal nut 302, the screw mechanism 301 is connected to the linkage device 8, the trapezoidal nut 302 is threadedly connected to the screw mechanism 301, and the trapezoidal nut 302 can move under the drive of the screw mechanism 301. The first positioning bracket 303 and the second positioning bracket 304 are provided at both ends of the screw mechanism 301, and the first positioning bracket 303 and the second positioning bracket 304 are respectively fixedly connected to the bottom plate 1. Such a setting can effectively solve the problem of large driving force by using a screw drive method.

[0046] In this embodiment, the rotating bracket 7 specifically includes an upper rotating shaft 701, a lower rotating shaft 702, a mounting block 703 and a rocker 704. The upper rotating shaft 701 is fastened to the trapezoidal nut 302, the rocker 704 is rotatably connected to the upper rotating shaft 701, the lower rotating shaft 702 is fastened to the rocker 704, the mounting block 703 is rotatably connected to the lower rotating shaft 702, and the mounting block is used to fix and install the door. Such a setting can adapt to doors of different thicknesses and models, and can also have a buffering effect on the left and right.

[0047] In this embodiment, the guide rail mechanism 5 specifically includes two moving sliders 501 and a straight guide rail 502. The straight guide rail 502 is fixedly connected to the bottom plate 1, and the moving slider 501 is slidably connected to the straight guide rail 502. The moving slider 501 is fixed to the door and can perform guided movement along the straight guide rail 502 under the action of the driving force. Such a setting can effectively solve the problem of overweight loading by using the guide rail mechanism to bear the weight.

[0048] Among them, in this embodiment, the linkage device 8 specifically includes a linkage inner shaft component 801, a screw mechanism pressure plate 802 and a motor pressure plate 803. The linkage inner shaft component 801 is located between the two pressure plates and is connected to the two pressure plates respectively. The screw mechanism pressure plate 802 is connected to the driving device 3, and the motor pressure plate 803 is connected to the driving motor 2. The screw mechanism pressure plate 802 is tightly connected to the motor pressure plate 803. Such a setting can effectively improve the linkage consistency and is conducive to the transmission of force.

[0049] The specific embodiments described above further illustrate in detail the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that, without departing from the concept of the present invention, several deformations and improvements can be made to the self-locking device and the screw mechanism at the tail of the motor in the drive mechanism to limit the rotation. The above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A driving mechanism for a stop-and-slide door for a railway vehicle, characterized in that: It comprises a base plate (1), a drive motor (2), a drive device (3), an adaptor power supply (4), a guide rail mechanism (5), an electronic control unit (6), a rotating bracket (7), a linkage device (8), a closed position stopper assembly (9), an open position stopper assembly (10), a self-locking device, and an unlocking device (12); The electric control unit (6) is fixedly mounted on the base plate (1), is electrically connected to the drive motor (2), and is used to control the electric function of the entire drive mechanism; The driving motor (2) is fixedly mounted on the base plate (1) and is used for power output; The driving device (3) is fixedly mounted on the bottom plate (1) on one side of the driving motor (2) and is used to drive the rotating bracket (7) to move; One end of the linkage device (8) is connected to the drive motor (2), and the other end is connected to the drive device (3), and is used to transmit power to the drive device (3); The rotating bracket (7) is connected to the driving device (3) and is used to transmit force to the door and control the movement of the door; The guide rail mechanism (5) is fixedly mounted on the bottom plate (1) below the driving device (3) and is used to guide the movement of the door; The adaptable power supply (4) is fixedly mounted on the base plate (1), is electrically connected to the electric control unit (6), and can be converted into a safe voltage within a certain voltage range; The door closing stop assembly (9) is fixedly mounted on a bottom plate below the drive motor (2) and close to one end of the guide rail mechanism (5), and is electrically connected to the electric control unit (6) for limiting the position of the door closing and sensing that the door is in the closed position, thereby sending an electrical signal to the electric control unit (6) to cut off power; The door opening stop assembly (10) is fixedly mounted on a bottom plate near the other end of the guide rail mechanism (5) and is electrically connected to the electric control unit (6) for limiting the door opening position and sensing the door opening position, thereby sending an electrical signal to the electric control unit (6) to cut off power; The self-locking device is arranged in the drive motor (2) and is used to control the motor output shaft to be locked and rotatable; in the power-on state, the self-locking device is not activated, the motor output shaft is rotatable, and the electronic control unit (6) can control the door to open and close; in the power-off state, the self-locking device is triggered, the motor output shaft is locked, and the door cannot be moved; The unlocking device (12) is fixedly mounted on the bottom plate (1) below the drive motor (2) and is connected to the drive motor (2) and is used to unlock the motor when the external force switch is pulled down, so that the motor output shaft can rotate; The driving motor (2) comprises a motor body (201) and a controller (202) connected to the motor body (201); a motor shaft (203) is provided inside the motor body (201); and the motor shaft (203) is connected to a self-locking device; The self-locking device is arranged inside the controller (202), and comprises a return spring (111), a coil (112), a clutch plate (113) and a friction plate (114); the friction plate (114) is arranged around the motor shaft (203) and connected to the motor shaft (203); the return spring (111) is fixedly arranged on the inner wall of the controller (202) and is coaxial with the motor shaft (203); the coil (112) is fixedly arranged on the inner wall of the controller (202) and is distributed on the return spring (111), a clutch plate (113) is movably arranged between the friction plate (114) and the coil (112); when the power is on, the clutch plate (113) fits with the top of the coil (112) and the return spring (111); when the power is on, the coil (112) attracts the clutch plate (113), and the motor shaft (203) can rotate normally; when the power is off, the return spring (111) in the compressed state returns to push the clutch plate (113) and the friction plate (114) to fit together, and the motor shaft (203) is locked and cannot rotate.

2. The railway vehicle stop-and-slide door driving mechanism according to claim 1, characterized in that: The unlocking device (12) comprises a trigger rod (121), two paddles (122), a push-pull rod (123), a compression spring (124), a steel wire rope (125), a tension guide tube (126), a first clamping plate (127), a second clamping plate (128) and a third clamping plate (129); the first clamping plate (127), the second clamping plate (128) and the third clamping plate (129) are respectively fixedly connected to the bottom plate (1); the push-pull rod (123) is limited by the first clamping plate (127) and the second clamping plate (128) and is slidably connected to the two clamping plates; the paddle (122) can be slidably sleeved on the push-pull rod (123); the upper end of the trigger rod (121) penetrates into the interior of the controller (202) and is close to the clutch plate (113), and the lower ring of the trigger rod (121) is sleeved on the push-pull rod (123) and is located between the two paddles (122). The compression spring (124) is looped on the push-pull rod (123), one end of which is connected to the second clamping plate (128), and the other end of which is connected to the nearest paddle (122); one end of the steel wire rope (125) is connected to the push-pull rod (123), and the other end is connected to the tension guide tube (126); the tension guide tube (126) is fixedly connected to the third clamping plate (129), and the tension guide tube (126) is connected to the external tension switch; when a sudden power failure occurs, the external force switch is pulled down, the trigger rod (121) pushes the clutch plate (113) away from the friction plate (114), the motor shaft (203) is unlocked and can rotate normally, the external force switch is reset, the compression spring (124) relies on the reset force to push the trigger rod (121) back to its original position, the return spring (111) returns to push the clutch plate (113) and the friction plate (114) to fit together, and the motor shaft (203) is locked and cannot rotate.

3. The railway vehicle stop-and-slide door driving mechanism according to claim 1, characterized in that: The driving device (3) comprises a screw mechanism (301) and a trapezoidal nut (302); the screw mechanism (301) is connected to the linkage device (8); the trapezoidal nut (302) is threadedly connected to the screw mechanism (301); a first positioning bracket (303) and a second positioning bracket (304) are provided at both ends of the screw mechanism (301); the first positioning bracket (303) and the second positioning bracket (304) are respectively fixedly connected to the bottom plate (1).

4. The railway vehicle stop-and-slide door driving mechanism according to claim 3, characterized in that: The rotating bracket (7) comprises an upper rotating shaft (701), a lower rotating shaft (702), a mounting block (703) and a rocker (704); the upper rotating shaft (701) is fixedly connected to the trapezoidal nut (302); the rocker (704) is rotationally connected to the upper rotating shaft (701); the lower rotating shaft (702) is fixedly connected to the rocker (704); and the mounting block (703) is rotationally connected to the lower rotating shaft (702).

5. The railway vehicle stop-and-slide door driving mechanism according to claim 1, characterized in that: The guide rail mechanism (5) comprises two moving slide blocks (501) and a straight guide rail (502); the straight guide rail (502) is fixedly connected to the bottom plate (1); and the moving slide block (501) is slidably connected to the straight guide rail (502).

6. The railway vehicle stop-and-slide door driving mechanism according to claim 1, characterized in that: The linkage device (8) comprises a linkage inner shaft assembly (801), a screw mechanism pressure plate (802) and a motor pressure plate (803); the linkage inner shaft assembly (801) is located between the two pressure plates and is respectively connected to the two pressure plates; the screw mechanism pressure plate (802) is connected to the drive device (3); the motor pressure plate (803) is connected to the drive motor (2); and the screw mechanism pressure plate (802) and the motor pressure plate (803) are tightly connected.

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