CN114790864B - Single-opening sliding plug door device - Google Patents
Single-opening sliding plug door device Download PDFInfo
- Publication number
- CN114790864B CN114790864B CN202210471950.7A CN202210471950A CN114790864B CN 114790864 B CN114790864 B CN 114790864B CN 202210471950 A CN202210471950 A CN 202210471950A CN 114790864 B CN114790864 B CN 114790864B
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- Prior art keywords
- linear
- connecting rod
- door
- module
- rocking arm
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/655—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings specially adapted for vehicle wings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
- B61D19/008—Door arrangements specially adapted for rail vehicles characterised by the movements of the door both swinging and sliding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/02—Door arrangements specially adapted for rail vehicles for carriages
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/10—Hydraulic or pneumatic
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/10—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
- E05D15/1005—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane the wing being supported on arms movable in horizontal planes
- E05D15/1007—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane the wing being supported on arms movable in horizontal planes specially adapted for use in railway-cars or mass transit vehicles
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/506—Application of doors, windows, wings or fittings thereof for vehicles for buses
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The application provides a single-opening plug door device, which relates to the technical field of urban railway vehicles and comprises an upper mechanism, a door carrying frame and a door body, wherein the door carrying frame is used for connecting the upper mechanism with the door body, the upper mechanism comprises a mechanism fixing frame, a driving module, a driving connecting rod, a linear bearing and a linear guide rail, the mechanism fixing frame is fixedly arranged on a vehicle body and used for accommodating and fixing other parts of the upper mechanism, the driving module is arranged in an extending mode along the length direction of the mechanism fixing frame, two ends of the driving connecting rod are respectively arranged on the driving module and the linear bearing in a rotating mode, the linear bearing is sleeved on the linear guide rail, and the door carrying frame is fixed on the linear bearing. The single-opening sliding plug door provided by the application has the advantages of simple structure, small structure and wide application range.
Description
Technical Field
The application relates to the technical field of urban railway vehicles, in particular to a single-opening sliding plug door device.
Background
The novel city bus at the present stage gradually starts to adopt various types of sliding plug doors, and the car door can be opened outwards, has large opening, can quickly evacuate passengers, and has the advantages of high comfort and safety.
When the door opening size is small, a single-open plug door mechanism is often selected. The single-opening plug door moving device often realizes door opening and door closing through the cooperation of a door carrying frame assembly, a door carrying frame guide rail, a door carrying frame assembly guide pillar and a synchronous rod.
However, the existing single-opening sliding plug door movement device has the defects of complex structure, high processing precision requirement, large external dimension, more occupied space and difficult overall overassembly.
Disclosure of Invention
The application aims to solve the defects of complex structure, high processing precision requirement, large external dimension, more occupied space and difficult overall overassembly of a single sliding plug door movement device in the prior art.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides a singly open plug door device, includes upper portion mechanism, portal frame and the door body, the portal frame is used for connecting upper portion mechanism with the door body, upper portion mechanism includes mechanism fixing frame, drive module, drive connecting rod, linear bearing, linear guide, mechanism fixing frame is fixed to be set up on the automobile body for right other parts of upper portion mechanism hold and fix, drive module extends along mechanism fixing frame length direction and sets up, drive connecting rod both ends rotate respectively and set up drive module with linear bearing is last, linear bearing cover is established linear guide is last, the portal frame is fixed on the linear bearing.
Preferably, the driving module is a motor-driven linear module, a linear running support arranged on the linear module in a sliding manner along the length direction of the linear module, a linear module sliding block arranged on the linear module in a sliding manner is arranged on the linear running support, and one end of the driving connecting rod is fixed on the linear running support.
Preferably, the automobile door further comprises a rotary upright post, wherein the upper end and the lower end of the rotary upright post are respectively fixed on the automobile body, a plurality of rotary arms are arranged on the rotary upright post, and two rotary arms are connected with the upper end and the lower end of the door body.
Preferably, the upper end and the lower end of the door body are respectively provided with a chute, and two of the rotary arms of the rotary upright post are provided with rollers matched with the chute.
Preferably, the lower rotating arm is provided with a limit screw, and the limit screw is used for limiting the rotation angle of the lower rotating arm in the door opening process.
Preferably, the upper mechanism further comprises an emergency unlocking cylinder, and the emergency unlocking cylinder is fixed on the shell of the driving module and used for executing emergency unlocking.
Preferably, the upper mechanism further comprises a transmission assembly, the transmission assembly comprises a connecting rod sleeve, the sleeve of the transmission assembly is sleeved on the mechanism fixing frame, and the transmission assembly penetrates through the connecting rod sleeve to be connected with the linear module.
Preferably, one end of the linear bearing is fixed by adopting a joint bearing, and the other end of the linear bearing is provided with a rolling bearing.
Preferably, the driving module is a linear module driven by a motor.
Compared with the prior art, the single-opening sliding plug door device provided by the application has the following advantages:
1. the single-opening sliding plug door provided by the application has the advantages of simple structure, small structure and wide application range.
2. The number of parts of the mechanism is small, and the mechanism framework is mostly made of metal plate bending technology, so that the processing amount is reduced, the weight of the whole mechanism is greatly reduced, and the installation, the debugging and the maintenance are convenient;
3. meanwhile, the structure is suitable for the structures of the pneumatic sliding plug door and the electric sliding plug door, and the universalization degree is high;
4. the processing requirement is low, and the processing precision requirement of the sliding plug door is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of a single-door sliding plug device according to an embodiment of the present application;
FIG. 2 is a schematic view of a part of a single-opening sliding plug door apparatus according to an embodiment of the present application, for showing an upper mechanism;
FIG. 3 is a schematic view of a part of a structure of a single-door sliding plug device according to another embodiment of the present application, showing an upper mechanism and a door carrying frame;
FIG. 4 is a schematic diagram showing the upper structure of a single-opening sliding plug door apparatus according to an embodiment of the present application;
FIG. 5 is a partial schematic view of the upper structure of a single-opening sliding plug door apparatus for showing a transmission assembly according to an embodiment of the present application;
FIG. 6 is a schematic view of the upper mechanism and the rotating upright of a single-door sliding plug device according to an embodiment of the present application;
FIG. 7 is a schematic view of a portion of a swing post for closing a single-door apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural view of an upper mechanism when the single-opening sliding plug door device is closed in an embodiment of the present application.
Legend description:
1. an upper mechanism; 11. a mechanism fixing frame; 12. a driving module; 121. a linear operation support; 122. a linear module slider; 13. a linear bearing; 131. a knuckle bearing; 132. a rolling bearing; 14. a linear guide rail; 15. a transmission assembly; 151. a connecting rod sleeve; 152. a transmission link; 1521. an upper rotating arm; 1522. a sliding sleeve; 1523. a lock nut; 1524. a lower rotating arm; 1525. a rotating shaft; 1526. a sliding sleeve; 1527. locking a screw; 16. an emergency unlocking cylinder; 17. an upper link; 18. a drive link; 2. A carrying frame; 3. a door body; 31. a chute; 4. a rotary upright post; 41. a mounting bracket; 42. a rotating arm; 421. a top swivel arm; 422. An upper rotating arm; 4221. a roller; 423. a lower rotating arm; 4231. and (5) limiting screws.
Detailed Description
The present application will be described in further detail with reference to specific examples in order to make the objects, technical solutions and advantages of the present application more apparent.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments of the disclosure that follow.
Referring to fig. 1 and 2, a single-open sliding plug door device includes an upper mechanism 1, a door carrying frame 2, a door body 3 and a rotary upright 4, wherein the upper mechanism 1 is fixed on the top of the vehicle body, the door carrying frame 2 is used for connecting the door body 3 and the upper mechanism 1, and the upper and lower ends of the rotary upright 4 are respectively fixed on the vehicle body.
Referring to fig. 2, 3 and 4, in an embodiment, the upper mechanism 1 includes a mechanism fixing frame 11, a driving module 12, a linear bearing 13, a linear guide 14, a transmission assembly 15, an emergency unlocking cylinder 16, an upper connecting rod 17 and a driving connecting rod 18, wherein the mechanism fixing frame 11 is a rectangular frame, the mechanism fixing frame 11 is fixedly arranged on a vehicle body and is used for accommodating and fixing other components of the upper mechanism 1, the linear module extends along a length direction of the mechanism fixing frame 11, and one end of the linear module is fixed on a side wall of the mechanism fixing frame 11.
In an embodiment, referring to fig. 4, the driving module 12 is a linear module driven by a motor, a linear running support 121 slidably disposed along a length direction of the linear module is disposed on the linear module, and a linear module slider 122 slidably disposed on the linear module is disposed on the linear running support 121. In another embodiment, the linear module is replaced with a rodless cylinder.
When the door body 3 is in a closed state, the linear guide rail 14 is arranged in parallel with the linear module, the linear bearing 13 is sleeved on the linear guide rail 14 and is slidably arranged along the length direction of the linear guide rail 14, in one embodiment, one end of the linear guide rail 14, which is directed to the closing side of the vehicle door, is fixed by adopting a joint bearing 131, and the other end of the linear guide rail 14 is provided with a rolling bearing 132.
Linear bearing the transmission assembly 15 comprises a connecting rod sleeve 151, the connecting rod sleeve 151 is sleeved on the mechanism fixing frame 11, and the transmission assembly 15 is assembled on the connecting rod sleeve 151.
Referring to fig. 5, the transmission assembly 15 includes a link sleeve 151 and a transmission link 152, the link sleeve 151 is sleeved on the mechanism fixing frame 11, the transmission link 152 is composed of an upper portion and a lower portion, wherein the upper transmission link includes an upper rotating arm 1521, a sliding shaft sleeve 1522 and a locking nut 1523; the lower transmission link comprises a lower rotating arm 1524, a rotating shaft 1525, a sliding shaft sleeve 1526 and a locking screw 1527; the rotating shaft 1525 of the lower transmission link passes through the link sleeve 151, and the upper transmission link is sleeved on the rotating shaft 1525 of the lower transmission link from the upper end of the link sleeve 151 and locks the upper and lower transmission links through the lock nut 1523. The upper swivel arm 1521 is connected to the tail end of the linear module, and the lower swivel arm 1524 is connected to the upper link 17.
Referring to fig. 6, the emergency unlocking cylinder 16 is fixed to the housing of the linear module. The emergency unlocking mechanism is used for executing an emergency unlocking function, specifically, when the emergency unlocking function is executed, the emergency unlocking cylinder 16 is ejected, the cylinder force acts on the linear operation support to enable the linear operation support to move towards the door opening direction, and the portal frame 2 is driven by the driving connecting rod 18 to synchronously operate, so that emergency opening actions are realized.
One end of the upper connecting rod 17 is connected with the transmission assembly 15, and the other end extends along the length direction of the mechanism fixing frame 11 and is rotatably arranged on the rotary upright 4.
One end of the driving link 18 is rotatably disposed on the linear motion bracket 121, and the other end is rotatably connected to the top of the linear bearing 13.
Referring to fig. 1 and 2, the door carrying frame 2 is disposed in an arc shape, one end of the door carrying frame 2 is fixed on the door body 3, and the other end is connected with a linear bearing 13 on the upper mechanism 1.
Referring to fig. 1, the door body 3 is in a rectangular plate shape, in an embodiment, referring to fig. 6, the upper and lower ends of the door body 3 are respectively provided with a chute 31, and the chute 31 extends along the length direction of the door panel.
Referring to fig. 2 and 6, the rotating upright 4 is vertically disposed, and two ends of the rotating upright 4 in the length direction are respectively provided with a mounting bracket 41, where two mounting brackets 41 are used for fixing two ends of the rotating upright 4 in the vertical direction. In an embodiment, the rotary upright 4 is further provided with three rotating arms 42, which are a top rotating arm 421, an upper rotating arm 422 and a lower rotating arm 423, wherein the top rotating arm 421 is located at the top of the rotary upright 4 and is connected with the upper connecting rod 17, the upper rotating arm 422 and the lower rotating arm 423 are respectively disposed corresponding to the sliding grooves 31 at the upper end and the lower end of the door body 3, the upper rotating arm 422 and the lower rotating arm 423 are respectively provided with rollers 4221 mutually matched with the sliding grooves 31, in an embodiment, the sliding grooves 31 at the top of the upper rotating arm 422 and the door body 3 are matched by single rollers, the sliding grooves 31 below the lower rotating arm 423 and the door body 3 are matched by double rollers, and in an embodiment, the lower rotating arm 423 is provided with a limit screw 4231 for limiting the rotation angle of the lower rotating arm 423 in the door opening process.
Working principle:
when the door is opened, the linear module slider 122 moves together with the linear operation bracket 121, and at this time, the connecting rod connected to the linear operation bracket 121 carries out the door opening operation with the linear bearing 13, and the roller on the rotating arm 423 at the lower part of the rotating pillar 4 is pushed by the lower chute 31 of the door body 3, and the rotating arm 423 at the lower part of the rotating pillar 4 is rotated counterclockwise along the pillar, so that the door is pushed out in a proper manner, as shown in fig. 7.
When the door body 3 is pushed outwards, the whole door body 3 is inclined, the angle of the door carrying frame 2 is driven to incline, the linear bearing 13 is driven, and the angle of the sliding guide rail is inclined, as shown in fig. 8.
During the continued opening operation, the door body 3, the carrying door 2 and the linear bearing 13 continue to move along the inclined slide rail. During operation, the linear bearing 13 gradually approaches the linear module. The angle of the linear bearing 13 and the linear guide rail 14 is gradually adjusted under the limitation of the angle of the driving connecting rod 18, so that the door body 3 and the vehicle body are basically in a parallel state in the door opening state.
The door closing process is opposite to the door opening process, when the door is closed in place, a brake on the linear module driving motor is started, the transmission connecting rod of the upper mechanism 1 is locked, the rotary upright column 4 is locked under the action of the transmission assembly 15 of the upper mechanism 1, and the door is completely closed at the moment and cannot loosen under the action of external force.
When the emergency unlocking function is executed, the emergency unlocking cylinder 16 is ejected, the cylinder force acts on the linear operation support to enable the linear operation support to move towards the door opening direction, and the portal frame 2 is driven by the driving connecting rod 18 to synchronously operate, so that emergency opening action is realized.
The single-open sliding plug door mechanism provided by the application has the advantages that the structure is small, the application range is wide, the number of mechanism parts is small, the mechanism framework is mostly made of a metal plate bending process, the processing amount is reduced, the weight of the whole mechanism is greatly reduced, and the installation, the debugging and the maintenance are convenient; meanwhile, the structure is suitable for the structures of the pneumatic sliding plug door and the electric sliding plug door, and the universalization degree is high; the processing requirement is low, and the processing precision requirement of the sliding plug door is reduced.
The above description is only an example of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (3)
1. The utility model provides a singly open plug door gear, includes upper portion mechanism, portal frame and the door body, the portal frame is used for connecting upper portion mechanism with the door body, its characterized in that: the upper mechanism comprises a mechanism fixing frame, a driving module, a linear bearing, a linear guide rail, a transmission assembly, an upper connecting rod, a driving connecting rod and a rotary upright post, and sliding grooves are respectively formed in the upper end and the lower end of the door body;
the mechanism fixing frame is fixedly arranged on the vehicle body and used for accommodating and fixing other parts of the upper mechanism;
the driving module is arranged in an extending mode along the length direction of the mechanism fixing frame, the driving module is a linear module driven by a motor, a linear running support arranged in a sliding mode along the length direction of the linear module is arranged on the linear module, and a linear module sliding block arranged on the linear module in a sliding mode is arranged on the linear running support;
the linear bearing is sleeved on the linear guide rail, and the portal frame is fixed on the linear bearing;
one end of the linear guide rail, which points to the closing side of the vehicle door, is fixed by adopting a joint bearing, and the other end of the linear guide rail is provided with a rolling bearing;
the transmission assembly comprises a connecting rod sleeve and a transmission connecting rod, the connecting rod sleeve is sleeved on the mechanism fixing frame, the transmission connecting rod consists of an upper part and a lower part, wherein the upper transmission connecting rod comprises an upper rotating arm, a sliding shaft sleeve and a locking nut, the lower transmission connecting rod comprises a lower rotating arm, a rotating shaft, a sliding shaft sleeve and a locking screw, the upper rotating arm is connected with the tail end of the linear module, and the lower rotating arm is connected with the upper connecting rod;
one end of the driving connecting rod is rotatably arranged on the linear running support, and the other end of the driving connecting rod is rotatably connected to the top of the linear bearing;
the vertical setting of gyration stand, both ends are fixed on the automobile body respectively about the gyration stand still are equipped with three rocking arm, are top rocking arm, upper portion rocking arm and lower rocking arm respectively, wherein the top rocking arm is located the top of gyration stand, and with upper portion connecting rod connection sets up, upper portion rocking arm and lower rocking arm respectively with the spout at both ends about the door body corresponds the setting respectively upper portion rocking arm and lower rocking arm on be provided with respectively with the gyro wheel of spout mutually supporting, the one end of upper portion connecting rod with drive assembly connects, and the other end is followed the length direction of mechanism fixed frame extends and rotates and sets up on the gyration stand.
2. A single-opening sliding-plug door apparatus according to claim 1, wherein: and the lower rotating arm is provided with a limit screw which is used for limiting the rotation angle of the lower rotating arm in the door opening process.
3. A single-opening sliding-plug door apparatus according to claim 2, wherein: the upper mechanism further comprises an emergency unlocking cylinder, and the emergency unlocking cylinder is fixed on the shell of the driving module and used for executing emergency unlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471950.7A CN114790864B (en) | 2022-04-29 | 2022-04-29 | Single-opening sliding plug door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471950.7A CN114790864B (en) | 2022-04-29 | 2022-04-29 | Single-opening sliding plug door device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114790864A CN114790864A (en) | 2022-07-26 |
| CN114790864B true CN114790864B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210471950.7A Active CN114790864B (en) | 2022-04-29 | 2022-04-29 | Single-opening sliding plug door device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114790864B (en) |
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| CN213775043U (en) * | 2020-09-25 | 2021-07-23 | 江苏盛龙机电制造有限公司 | Preceding single stopper sliding door that operates stably |
| CN113027269A (en) * | 2021-03-25 | 2021-06-25 | 南京康尼机电股份有限公司 | Short mechanism device of two divisions of stopper sliding doors |
| CN113107303A (en) * | 2021-04-20 | 2021-07-13 | 南京启越机电设备有限公司 | Sliding plug door bearing driving mechanism |
| CN215718068U (en) * | 2021-07-23 | 2022-02-01 | 南京康尼机电股份有限公司 | Single-opening sliding plug door system |
| CN216788172U (en) * | 2021-12-30 | 2022-06-21 | 江苏沃特加汽车科技有限公司 | Pneumatic sliding plug door mechanism |
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| CN114790864A (en) | 2022-07-26 |
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