Electric double-outward swinging door
Through the single motor drive and worm gear reducer combined with a double gear reducer, the problem of complex mechanical structure of the passenger car's outer swing door and small opening of the door channel is solved, the synchronous action and rapid unlocking of the door panel are achieved, and the door is improved Stability and ease of use.
Patent Information
- Application Number
- CN202420640714.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-30
AI Technical Summary
The mechanical structure of the existing bus exterior swing door is complex and the door passage opening is small, which affects the convenience of passengers going up and down.
The left and right double door panels are driven by a single motor, and the door panel movement is synchronized through the worm gear reducer and the double gear reducer. Combined with the slide clutch unlocking mechanism, the speed and safety of unlocking operation are improved.
The drive structure is simplified, the stability and safety of the door panels are improved, the synchronous movement and rapid unlocking of the left and right door panels are achieved, and the convenience of using the passenger door is improved.
Smart Images
Figure CN222207597U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric outward swing doors for buses, in particular to an electric double outward swing door. Background Art
[0002] Currently, outward-swinging doors on buses generally use electric or pneumatic structures. Chinese Patent No. 201910331579.2 discloses an electric single-swing outward-swinging door, comprising a door frame, a door leaf, and a drive mechanism hinged to the door leaf via a pivoting arm assembly. The drive mechanism includes a drive assembly connected to a reduction gearbox assembly, which is connected to the door frame via a mounting backplate. The output shaft of the reduction gearbox assembly is connected to the pivoting arm assembly. The drive assembly comprises a motor bracket and a lower mounting plate. The motor bracket is equipped with a drive motor assembly and a lock / block mounting plate assembly. The lower mounting plate is equipped with an unlocking bracket and a fixed unlocking block. The unlocking bracket is connected to a reset component, and the lower mounting plate is connected to the motor bracket. This patent is for a bus door system. It offers many advantages, including high obstacle detection sensitivity, strong door opening and closing capabilities on steep slopes, and a self-locking function. However, the mechanical structure in this patent is relatively complex, resulting in a narrow opening of the bus doorway, making it inconvenient for passengers to board and alight. Therefore, an electric double-swing outward-swinging door is proposed. Summary of the Invention
[0003] The purpose of this utility model is to provide an electric double-outward swing door, comprising a drive mechanism, left and right door shaft assemblies, left and right door panel assemblies, a transmission rack mechanism, and a control circuit. The drive mechanism includes a motor and a worm gear reducer. Left and right door shaft transmission racks are mounted on either side of the double gear reducer, and the left and right door shafts are connected to the drive mechanism. This utility model utilizes a single motor to drive both left and right door panels, optimizing the drive and transmission methods. This provides advantages such as high synchronization of the left and right door panels and strong locking stability. A slider clutch unlocking mechanism is employed, enabling sensitive unlocking and ensuring safety and reliability.
[0004] The technical solution of the utility model is achieved as follows: an electric double outward swing door, including a drive mechanism, left and right door shaft assemblies, left and right door panel assemblies, a transmission rack mechanism, and a control circuit. The key points are that a drive bracket is installed on the top of the bus door frame, and the drive bracket is arranged horizontally; the drive mechanism is arranged in the middle of the drive bracket, and the drive mechanism includes a motor and a worm gear reducer. The output gear of the drive mechanism is connected to the large gear of a double gear reducer, and the small gear of the double gear reducer is installed on one side of the left door shaft drive. Rack, the right door shaft transmission rack is installed on the other side of the pinion of the double gear reducer, and the pinion of the double gear reducer is meshed and connected with the head of the left door shaft transmission rack and the head of the right door shaft transmission rack; the left door shaft driving gear is set at the left end of the driving bracket, and the driving gear is meshed and connected with the tail of the left door shaft transmission rack, and the right door shaft driving gear is set at the right end of the driving bracket, and the driving gear is meshed and connected with the tail of the right door shaft transmission rack; the left door shaft driving gear is installed on the driving bracket through the gear shaft, and the lower part of the gear shaft A left hanging screw pile head is provided, and the right door shaft driving gear is installed on the driving bracket through a gear shaft, and a right hanging screw pile head is provided at the lower part of the gear shaft; the double gear reducer is fixed on the driving bracket, the large gear of the double gear reducer is provided at the bottom, and the small gear of the double gear reducer is provided at the top; the left and right door shaft assemblies include a left door shaft and a right door shaft, a nut-type sleeve is provided at the top of the left door shaft, and the nut-type sleeve is installed together with the left hanging screw pile head, a left rotating arm is provided in the middle of the left door shaft, and a left door shaft is provided at the bottom Base, the left door shaft base is installed on the bus body; a nut-type sleeve is provided on the top of the right door shaft, and the nut-type sleeve is installed together with the right suspension screw pile head, a right turning arm is provided in the middle of the right door shaft, and a right door shaft base is provided at the bottom, and the right door shaft base is installed on the bus body; the left and right door panel assemblies include a left door panel and a right door panel, the left door panel is installed together with the left turning arm, and the right door panel is installed together with the right turning arm; the transmission rack mechanism includes the left door shaft transmission rack, the right door shaft transmission rack, and a rack guide slide.
[0005] In order to improve the stability and safety of the bus door panels, a top pivot pin is provided at the top of the left door panel, a top pivot pin is provided at the top of the right door panel, and a pin hole plate is fixed at the top of the bus door frame, and positioning holes corresponding to the top pivot pin at the top of the left door panel and the top pivot pin at the top of the right door panel are provided on the pin hole plate; a door panel locking block is provided in the middle of the left door panel, and a door frame locking block matching the door panel locking block is provided in the middle of the bus door frame; a door panel locking block is provided in the middle of the right door panel, and a door frame locking block matching the door panel locking block is provided in the middle of the bus door frame.
[0006] In order to improve the speed and convenience of unlocking and resetting the bus door, a longitudinal slide rail is provided in the middle of the driving bracket, an unlocking slider is installed on the longitudinal slide rail, and the driving mechanism is installed on the unlocking slider; the unlocking slider is hinged to a manual unlocking mechanism, and the manual unlocking mechanism includes a follower connecting rod, a plate-shaped swing arm, an unlocking plate, an unlocking handle box, and an unlocking handle. One end of the plate-shaped swing arm is hinged to the driving bracket through a swing arm pin, and the other end thereof is hinged to the follower connecting rod and the unlocking plate. The middle part of the unlocking plate is hinged to the unlocking handle.
[0007] In order to improve the stability of the bus door panel when it is closed, multiple tension springs are installed at the lower part of the left door shaft, the upper end of the tension spring is fixed to the left door shaft, and the lower end of the tension spring is fixed to the left door shaft base. Multiple tension springs are installed at the lower part of the right door shaft, the upper end of the tension spring is fixed to the right door shaft, and the lower end of the tension spring is fixed to the right door shaft base.
[0008] The utility model has the following beneficial effects:
[0009] 1. Since the electric double outward swing door of the utility model adopts a driving mechanism composed of a single motor and a worm gear reducer, the driving and transmission methods are optimized, the structure is simple, and it has reliable self-locking performance.
[0010] 2. Since the driving mechanism of the electric double outward swing door of the utility model is organically combined with the unlocking slider, the quickness and simplicity of the unlocking and resetting operations of the bus door are improved.
[0011] 3. Since the electric double outward swing door of the utility model adopts a transmission structure of a suspended screw pile head and a nut-type sleeve, it has the advantages of continuously and reliably closing the door, lifting and locking the left and right door panels. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the electric double outward swing door of the present utility model;
[0013] Figure 2 This is a schematic diagram of the layout of the drive bracket and drive mechanism of the utility model;
[0014] Figure 3 This is a top view of the double outward swing door top structure of the utility model;
[0015] Figure 4 This is a schematic diagram of the longitudinal slide rail structure of the double outward swing door of the present utility model;
[0016] Figure 5 This is a schematic diagram of the structure of the double gear reducer for double outward swing doors of the present utility model;
[0017] Figure 6 This is a schematic diagram of the unlocking mechanism structure of the double outward swing door of the present invention;
[0018] Figure 7 This is a schematic diagram of the unlocked state of the double outward swing door of the present invention;
[0019] Figure 8 This is a schematic diagram of the door shaft base structure of the double outward swing door of the present invention. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings. Example
[0021] See attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , the attached figure shows the structure of the electric double outward swing door of the present invention. Figure 1 The structure of the electric double swing doors located on the inner side of the bus body is shown. Figure 2 Shows the attached Figure 1 The layout of the drive bracket, drive mechanism, and transmission rack mechanism on the top of the double outward swing door (located on the inner side of the bus body), attached Figure 3 It is attached Figure 1 and attached Figure 2 Attached is the top view of Figure 4 It is attached Figure 2The CC cross-sectional view in the figure. The electric double outward swing door of the utility model includes a driving mechanism, left and right door shaft assemblies, left and right door panel assemblies, a transmission rack mechanism, and a control circuit. There is a driving bracket 1 installed on the top of the bus door frame 34, and the driving bracket is arranged horizontally; the driving mechanism is arranged in the middle of the driving bracket, and the driving mechanism includes a motor 2 and a worm gear reducer 3. The output gear of the driving mechanism is connected to the large gear 16 of a double gear reducer 15. The left door shaft transmission rack 13 is installed on one side of the small gear 17 of the double gear reducer, and the right door shaft transmission rack 14 is installed on the other side of the small gear of the double gear reducer. The small gear of the double gear reducer is connected to the head of the left door shaft transmission rack and the The head of the right door shaft transmission rack is meshed and connected; the left end of the driving bracket is provided with a left door shaft driving gear 18, which is meshed and connected with the tail of the left door shaft transmission rack, and the right end of the driving bracket is provided with a right door shaft driving gear 19, which is meshed and connected with the tail of the right door shaft transmission rack; the left door shaft driving gear is installed on the driving bracket through a gear shaft, and a left hanging screw pile head 22 is provided at the lower part of the gear shaft, and the left hanging screw pile head and the gear shaft are an upper and lower integrated structure, and the right door shaft driving gear is installed on the driving bracket through a gear shaft. A right hanging screw pile head 23 is provided at the lower part of the gear shaft, and the right hanging screw pile head and the gear shaft are in an integrated structure; the double gear reducer is fixed on the driving bracket, the large gear 16 of the double gear reducer is provided at the bottom, and the small gear 17 of the double gear reducer is provided at the top; the left and right door shaft assemblies include a left door shaft 24 and a right door shaft 25, a nut-type sleeve is provided at the top of the left door shaft, and the nut-type sleeve is installed together with the left hanging screw pile head, a left rotating arm 26 is provided in the middle of the left door shaft, and a left door shaft base 27 is provided at the bottom. Installed on the bus body; a nut-type sleeve is provided on the top of the right door shaft, which is installed together with the right suspension screw pile head; a right door shaft is provided with a right turning arm 28 in the middle of the right door shaft, and a right door shaft base 29 is provided at the bottom, which is installed on the bus body; the left and right door panel assemblies include a left door panel and a right door panel, the left door panel 30 is installed together with the left turning arm, and the right door panel 31 is installed together with the right turning arm; the transmission rack mechanism includes the left door shaft transmission rack 13, the right door shaft transmission rack 14, and the rack guide slide 12. In this embodiment, the left door shaft transmission rack 13 is installed on one side of the pinion 17 of the double gear reducer, and the right door shaft transmission rack 14 is installed on the other side of the pinion of the double gear reducer. The aforementioned installation relationship refers to a symmetrical installation relationship.
[0022] See attached Figure 2 , Attachment Figure 3 In this embodiment, the drive bracket is mounted on the top of the bus door frame (the left and right parts or the left and right ends of the drive bracket in the utility model or in this embodiment are attached Figure 2(The diagram is provided for reference only and should not be construed as limiting the present invention.) The drive bracket is made of steel plate and secured to the bus door frame by welding, riveting, or bolting. The motor in the drive mechanism is a stepper motor (also known as an encoder motor), and the motor and worm gear reducer are mounted and secured in an integrated structure (this structure is a publicly available finished product and is prior art, so it will not be described in detail). The output gear of the drive mechanism is located at the bottom of the reducer. The bus door frame is a rectangular steel frame that forms part of the bus body and is prior art.
[0023] See attached Figure 5 In this embodiment, the attached Figure 5 It is attached Figure 2 The DD cross-section in FIG. 1 shows a double gear reducer comprising a housing, which is mounted to the drive bracket via the housing. A vertical shaft is disposed within the housing, and the double gears are mounted on the vertical shaft via sliding bearings, with a large gear 16 at the bottom and a small gear 17 at the top. A window is provided at the bottom of the housing for the large gear to mesh with the output gear of the drive mechanism, while a window is provided at the top for the small gear to mesh with the left and right door shaft transmission racks. These window arrangements are conventional and are not shown in the figure.
[0024] See attached Figure 2 , Attachment Figure 3 In this embodiment, the transmission rack mechanism includes a left door shaft transmission rack 13, a right door shaft transmission rack 14, and a rack guide slide 12. The left and right ends of the left door shaft transmission rack are spur gear sections, and the middle portion is a guide column section. The spur gear section at the left end is provided with spur teeth that mesh with the left door shaft drive gear, and the spur gear section at the right end is provided with spur teeth that mesh with the pinion 17. The right end is the head of the left door shaft transmission rack, and the left end is the tail of the left door shaft transmission rack. Two rack guide slides 12 are provided on the guide column section. The rack guide slides adopt a sliding bearing structure, including a sliding sleeve and a bearing seat. The rack guide slides are fixed to the drive bracket, and the guide column section is installed in the rack guide slides. The rack guide slides maintain the meshing transmission between the left door shaft transmission rack and the pinion and the left door shaft drive gear. The left and right ends of the right door shaft transmission rack are spur gear sections, and the middle section is a guide column section. The spur gear section on the right end is equipped with spur teeth that mesh with the right door shaft drive gear, and the spur gear section on the left end is equipped with spur teeth that mesh with the pinion 17. The left end is the head of the right door shaft transmission rack, and the right end is the tail of the right door shaft transmission rack. Two rack guide slides 12 are installed on the guide column section. The rack guide slides are fixed to the drive bracket, and the guide column section is installed in the rack guide slides. See the attached Figure 5The rack guide slide can also be integrated with a double gear reducer, including a guide sleeve 39 for the left door shaft transmission rack head and a guide sleeve 40 for the right door shaft transmission rack head. This structure is conventional and will not be described in detail. The installation and matching relationship between the guide column segment and the rack guide slide in this embodiment is conventional and will not be described in detail.
[0025] See attached Figure 1 In this embodiment, a nut-type sleeve is provided at the top of the left door shaft, and the nut-type sleeve is installed together with the left suspension screw pile head. An internal thread is provided in the nut-type sleeve, and the internal thread matches the external thread on the screw pile head. The length of the internal thread is 2-3 times the length of the screw pile head; the left suspension screw pile head and the gear shaft form an integrated structure up and down, and the component is installed on the drive bracket through a bearing, and the left suspension screw pile head extends under the drive bracket. The external thread on the left suspension screw pile head is a multi-start right-hand thread; a left turning arm is provided in the middle of the left door shaft, and the left turning arm is an L-shaped structure (this structure belongs to the existing technology), with a total of upper and lower left turning arms; a left door shaft base 27 is provided at the bottom, and the left door shaft base is installed on the bus body. Usually, the left door shaft base is fixed to the body floor of the bus, and can also be fixed to the bus door frame. A nut-type sleeve is provided at the top of the right door shaft, which is installed together with the right hanging screw pile head. The design of the nut-type sleeve is similar to the nut-type sleeve at the top of the left door shaft, and a description thereof will not be repeated; the right hanging screw pile head and the gear shaft are in an integrated structure from top to bottom, and the component is installed on the drive bracket through a bearing. The right hanging screw pile head extends below the drive bracket, and the external thread on the right hanging screw pile head is a multi-start left-hand thread; a right turning arm is provided in the middle of the right door shaft, and the right turning arm is an L-shaped structure (this structure belongs to the prior art), with a total of two right turning arms provided above and below; a right door shaft base 29 is provided at the bottom, and the right door shaft base is installed on the bus body, usually fixed to the bus body floor, and can also be fixed to the bus door frame. The left and right door panel assemblies include a left door panel and a right door panel, with the left door panel 30 installed together with the left turning arm, and the right door panel 31 installed together with the right turning arm; the installation method of the left and right door panels and the left and right turning arms respectively belongs to the prior art, and will not be described in detail in this embodiment.
[0026] See attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 In this utility model, the control circuit refers to the circuit that controls the opening and closing of the coach door, and includes a control button, a switch trigger ring 11, and a trigger switch 41. The switch trigger ring is mounted on the right door shaft transmission rack, and the trigger switch is mounted on the drive bracket. In this embodiment, the control circuit is conventional and will not be described in detail.
[0027] See attached Figure 1In this embodiment, a top pivot pin 38 is provided at the top of the left door panel, a top pivot pin is provided at the top of the right door panel, and a pin hole plate 37 is fixed at the top of the bus door frame. This pin hole plate is provided with positioning holes corresponding to the top pivot pins at the top of the left and right door panels (the top pivot pins and positioning holes are in a mating relationship not shown in the figure). A door panel locking block 32 is provided in the middle of the left door panel, and a door frame locking block 33 is provided in the middle of the bus door frame to match this door panel locking block. A door panel locking block is provided in the middle of the right door panel, and a door frame locking block is provided in the middle of the bus door frame to match this door panel locking block. A balance bar assembly 35 is provided at the bottom of the left and right door panels. The balance bar assembly is conventional, and the door panel locking block and door frame locking block are conventional and will not be described in detail in this embodiment.
[0028] See also Figure 1 , Attachment Figure 2 , Attachment Figure 3 When the electric double outward swing door of the present invention is in the closed state, the motor receives an open signal and begins to rotate. The output shaft of the worm gear reducer rotates, and because the output gear is in meshing with the large gear of the double gear reducer, it drives the small gear of the double gear reducer to rotate. The left door shaft drive rack moves to the right, and the right door shaft drive rack moves to the left. The left door shaft drive gear begins to rotate to the left (counterclockwise), and the right door shaft drive gear begins to rotate to the right (clockwise). Due to the wedge limit of the door panel locking block and the door frame locking block, the left and right door shafts can only drive the left and right door panels to descend. After the wedge limit is removed, the left and right door shafts synchronously drive the left and right door panels to swing outward. When the electric double outward swing door is in the open state, the motor receives a close signal and begins to rotate. The worm gear reducer drives the small gear of the double gear reducer to rotate. The left door shaft drive rack moves to the left, while the right door shaft drive rack moves to the right. The left door shaft drive gear begins to rotate clockwise (clockwise), while the right door shaft drive gear begins to rotate counterclockwise (counterclockwise). The left and right door shafts synchronously drive the left and right door panels toward the center of the door frame (closing direction). When the left and right door panels approach the coach door frame, the horizontal rotation of the left and right door shafts encounters resistance. Under the action of the screw head and the nut sleeve, the left and right door panels begin to rise. The door panel locking block and the wedge block of the door frame locking block cooperate to lift and close the left and right door panels. The self-locking performance of the worm gear reducer ensures a stable locking state of the drive mechanism. Example
[0029] This embodiment is an improvement based on the first embodiment. For the same contents as those in the first embodiment, please refer to the contents disclosed in the first embodiment for understanding, and no repetition will be given here. The contents disclosed in the first embodiment should also be regarded as the contents disclosed in the second embodiment. No further elaboration will be given.
[0030] See attached Figure 2 , Attachment Figure 4 In this embodiment, the attached Figure 4 It is attached Figure 2 The CC section view in FIG. A longitudinal slide rail 21 is provided in the middle of the drive bracket, on which an unlocking slider 20 is mounted, and the drive mechanism is mounted on the unlocking slider; the longitudinal slide rail means that the direction of the slide rail installation position is parallel to the direction of the left door shaft transmission rack. The unlocking slider is hinged to a manual unlocking mechanism. See attached Figure 6 (Attached Figure 6 It is attached Figure 3 (Enlarged view at point B in the middle), the manual unlocking mechanism includes a follower connecting rod 4, a plate-shaped swing arm 6, an unlocking plate 5, an unlocking handle box 7, and an unlocking handle 8. One end (left end) of the plate-shaped swing arm is hinged to the driving bracket through a swing arm pin 9, and the swing arm pin 9 is fixed to the driving bracket. The other end (right end) is hinged to the left end of the follower connecting rod and the top end of the unlocking plate (the three parts share a hinge pin). The middle part of the unlocking plate is hinged to the unlocking handle, and the middle part of the unlocking handle is hinged to the driving bracket. The hinge pin used for hinge is fixed to the driving bracket, and the right end of the follower connecting rod is hinged to the unlocking slider through a connecting rod hinge pin 10. In this embodiment, the driving mechanism, the longitudinal slide rail, and the unlocking slider constitute a quick clutch mechanism for an electric double outward swing door. Appendix Figure 6 The manual release mechanism's position is shown when the drive mechanism is engaged with the double gear reducer. The center point of the hinge axis at the right end of the follower link (link hinge pin 10) and the center point of the swing arm pin at the left end of the plate-shaped swing arm (swing arm pin 9) form a steady-state straight line. The left end of the follower link, the right end of the plate-shaped swing arm, and the top end of the release plate are hinged together by a common hinge axis, the center point of which is designed to lie outside this steady-state straight line. The right end of the plate-shaped swing arm can rotate counterclockwise by 0.1°-0.5°. This hinge axis position ensures the stability of the meshed transmission between the drive mechanism and the double gear reducer. During normal operation of the electric double outward swing door (including opening, closing, and locking operations), the plate-shaped swing arm cannot swing clockwise, and the follower link cannot rotate counterclockwise about its right hinge axis.
[0031] See attached Figure 7 , attached Figure 7 The manual unlocking mechanism is shown in its position when the drive mechanism is disengaged from the duplex gear reducer. If the drive mechanism motor fails (including a power outage) and cannot open or close the bus door panel, manual door opening or closing is required. By rotating the unlocking handle counterclockwise (centered on the hinge pin), the right end of the plate-shaped swing arm swings 30-45 degrees clockwise, moving the unlocking slider to the left. This disengages the drive mechanism from the duplex gear reducer and allows manual opening or closing. Once the drive mechanism fault is resolved, reverse the unlocking handle 8 to restore engagement between the drive mechanism and the duplex gear reducer. This mechanism improves the speed and convenience of unlocking and resetting the bus door.
[0032] See attached Figure 8 (Attached Figure 8 It is attached Figure 1 (Enlarged view of point A in the middle) Multiple tension springs 36 are mounted on the lower portion of the left door shaft, with their upper ends secured to the left door shaft and their lower ends secured to the left door shaft base. Multiple tension springs are mounted on the lower portion of the right door shaft, with their upper ends secured to the right door shaft and their lower ends secured to the right door shaft base. This mechanism improves the stability of the bus door panel when closed.
Claims
1. An electric double outward swing door, comprising a drive mechanism, left and right door shaft assemblies, left and right door panel assemblies, a transmission rack mechanism, and a control circuit, characterized in that: There is a driving bracket installed on the top of the passenger car door frame, and the driving bracket is arranged horizontally; the driving mechanism is arranged in the middle of the driving bracket, and the driving mechanism includes a motor and a worm gear reducer, the output gear of the driving mechanism is connected to the large gear of a double gear reducer, the left door shaft transmission rack is installed on one side of the pinion of the double gear reducer, and the right door shaft transmission rack is installed on the other side of the pinion of the double gear reducer, and the pinion of the double gear reducer is meshed with the head of the left door shaft transmission rack and the head of the right door shaft transmission rack; the left door shaft driving gear is arranged at the left end of the driving bracket, and the driving gear is meshed with the tail of the left door shaft transmission rack, and the right door shaft driving gear is arranged at the right end of the driving bracket, and the driving gear is meshed with the tail of the right door shaft transmission rack; the left door shaft driving gear is installed on the driving bracket through a gear shaft, and a left hanging screw pile head is arranged at the lower part of the gear shaft, and the right door shaft driving gear is installed on the driving bracket through a gear shaft The frame is provided with a right hanging screw pile head at the lower part of the gear shaft; the double gear reducer is fixed on the driving bracket, the large gear of the double gear reducer is provided at the bottom, and the small gear of the double gear reducer is provided at the top; the left and right door shaft assemblies include a left door shaft and a right door shaft, a nut-type sleeve is provided at the top of the left door shaft, the nut-type sleeve is installed together with the left hanging screw pile head, a left turning arm is provided in the middle part of the left door shaft, a left door shaft base is provided at the bottom, and the left door shaft base is installed on the passenger car body; a nut-type sleeve is provided at the top of the right door shaft, the nut-type sleeve is installed together with the right hanging screw pile head, a right turning arm is provided in the middle part of the right door shaft, a right door shaft base is provided at the bottom, and the right door shaft base is installed on the passenger car body; the left and right door panel assemblies include a left door panel and a right door panel, the left door panel is installed together with the left turning arm, and the right door panel is installed together with the right turning arm; the transmission rack mechanism includes the left door shaft transmission rack, the right door shaft transmission rack, and a rack guide slide.
2. The electric double outward swing door according to claim 1, characterized in that: A top axle pin is arranged at the top of the left door panel, a top axle pin is arranged at the top of the right door panel, a pin hole plate is fixed at the top of the coach door frame, and positioning holes corresponding to the top axle pin at the top of the left door panel and the top axle pin at the top of the right door panel are arranged on the pin hole plate; a door panel locking block is arranged at the middle of the left door panel, and a door frame locking block matching the door panel locking block is arranged at the middle of the coach door frame; a door panel locking block is arranged at the middle of the right door panel, and a door frame locking block matching the door panel locking block is arranged at the middle of the coach door frame.
3. The electric double outward swing door according to claim 2, characterized in that: A longitudinal slide rail is arranged in the middle of the driving bracket, an unlocking slider is installed on the longitudinal slide rail, and the driving mechanism is installed on the unlocking slider; the unlocking slider is hinged to a manual unlocking mechanism, and the manual unlocking mechanism includes a follower connecting rod, a plate-shaped swing arm, an unlocking plate, an unlocking handle box, and an unlocking handle, one end of the plate-shaped swing arm is hinged to the driving bracket through a swing arm pin, and the other end thereof is hinged to the follower connecting rod and the unlocking plate, and the middle part of the unlocking plate is hinged to the unlocking handle.
4. The electric double outward swing door according to claim 3, characterized in that: A plurality of tension springs are installed at the lower part of the left door shaft, the upper end of the tension spring is fixed to the left door shaft, and the lower end of the tension spring is fixed to the left door shaft base; a plurality of tension springs are installed at the lower part of the right door shaft, the upper end of the tension spring is fixed to the right door shaft, and the lower end of the tension spring is fixed to the right door shaft base.