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CN112721975A - Built-in sliding plug door system of high-speed motor train unit - Google Patents

Built-in sliding plug door system of high-speed motor train unit Download PDF

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Publication number
CN112721975A
CN112721975A CN202110134281.XA CN202110134281A CN112721975A CN 112721975 A CN112721975 A CN 112721975A CN 202110134281 A CN202110134281 A CN 202110134281A CN 112721975 A CN112721975 A CN 112721975A
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CN
China
Prior art keywords
locking device
pressing
built
door leaf
door
Prior art date
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Pending
Application number
CN202110134281.XA
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Chinese (zh)
Inventor
李美霞
陈乃龙
张改兰
朱星辰
王宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Kangni Mechanical and Electrical Co Ltd
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Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Nanjing Kangni Mechanical and Electrical Co Ltd filed Critical Nanjing Kangni Mechanical and Electrical Co Ltd
Priority to CN202110134281.XA priority Critical patent/CN112721975A/en
Publication of CN112721975A publication Critical patent/CN112721975A/en
Pending legal-status Critical Current

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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
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • 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
    • E05D15/1042—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 with transversely moving carriage
    • E05D15/1044—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 with transversely moving carriage specially adapted for use in railway-cars or mass transit vehicles
    • 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
    • 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
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

本发明公开了一种高速动车组内藏塞拉门系统，包括门扇、承载驱动机构和压紧锁闭装置，所述承载驱动机构设置在门扇的顶部，所述压紧锁闭装置包括单点气动压紧锁闭装置和联动气动压紧锁闭装置，所述单点气动压紧锁闭装置设置在车体入口两侧；所述联动气动压紧锁闭装置包括分别设置在门扇上、下两端的上部联动压紧锁闭装和下部联动压紧锁闭装置。本发明通过压紧锁闭装置实现多点锁闭，防止门系统工作时产生变形，保证列车高速运行的安全性与密封性能；采用90度塞拉方式，且具有塞拉可调性。

Figure 202110134281

The invention discloses a built-in plug sliding door system for a high-speed EMU, comprising a door leaf, a bearing driving mechanism and a pressing and locking device, the bearing driving mechanism is arranged on the top of the door leaf, and the pressing and locking device comprises a single point Pneumatic pressing and locking device and linkage pneumatic pressing and locking device, the single-point pneumatic pressing and locking device is arranged on both sides of the entrance of the vehicle body; The upper linkage pressing and locking device at both ends and the lower linkage pressing and locking device. The invention realizes multi-point locking by pressing the locking device, prevents the deformation of the door system during operation, and ensures the safety and sealing performance of the train running at high speed; it adopts a 90-degree plug mode and has plug adjustability.

Figure 202110134281

Description

Built-in sliding plug door system of high-speed motor train unit
Technical Field
The invention relates to the field of high-speed motor train unit traffic, in particular to a built-in sliding plug door system of a high-speed motor train unit.
Background
With the rapid development of the rail transit field, the high-speed train has a very high running speed, has higher requirements on the safety of a door system, and has greater requirements on the opening degree of a door leaf of a high-speed rail motor car in order to meet the loading and unloading of large boxes or articles. When the opening degree of the door leaf is larger, the size of the door leaf is larger, so that the safety and the air tightness of the door system during high-speed operation and the deformation generated when the door leaf is closed cannot be ensured; in addition, the built-in door of the existing train can not meet the requirement of larger plug pulling amount.
Disclosure of Invention
The purpose of the invention is as follows: in view of the above problems, the invention aims to provide a built-in sliding plug door system with a large opening degree for a high-speed motor train unit, which performs multi-point locking on a door leaf through a compression locking device so as to ensure the safety of the door system in the running process of the motor train unit.
The technical scheme is as follows: the invention relates to a built-in sliding plug door system of a high-speed motor train unit, which comprises a door leaf, a bearing driving mechanism and a pressing locking device, wherein the bearing driving mechanism is arranged at the top of the door leaf, the pressing locking device comprises a single-point pneumatic pressing locking device and a linkage pneumatic pressing locking device, the single-point pneumatic pressing locking device is arranged on two sides of an inlet of a train body and used for restraining a front stop and a rear stop of the door leaf, and the linkage pneumatic pressing locking device comprises an upper linkage pressing locking device and a lower linkage pressing locking device which are respectively arranged at the upper end and the lower end of the door leaf and used for restraining a door carrying frame and the lower part of the door leaf.
Bear actuating mechanism including bearing guide rail and electronic jar, it arranges many places mounting bracket and car connection to bear on the guide rail, electronic jar passes through the bolt and is connected with bearing the guide rail, and the upper slide sets up on bearing the guide rail, realizes door system upper portion direction.
The bearing driving mechanism further comprises a bearing trolley, and a first roller and a limiting wheel on the bearing trolley are matched with a sliding groove of the bearing guide rail to realize bearing and movement of the door system along the direction of the vehicle body; the hanging frame assembly is installed on a short guide pillar of the bearing trolley and connected with the door carrying frame, the door carrying frame is driven to move in a direction perpendicular to the door leaf, and the other end of the door carrying frame is connected with the door leaf through a fastening piece.
The door leaf comprises a door plate, a pressing plate and a pressing baffle plate, the pressing plate is arranged on a front stop and a rear stop of the door plate, and the pressing plate is connected with the single-point pneumatic pressing locking device and provides a pressing point for the single-point pneumatic pressing locking device; the pressing baffle is arranged below the door leaf and is connected with the linkage pneumatic pressing locking device to provide a pressing point for the linkage pneumatic pressing locking device at the lower part of the door leaf.
The door leaf further comprises a first roller wheel support and a second roller wheel support, the first roller wheel support and the second roller wheel support are respectively installed on two sides of the lower portion of the door leaf and are respectively matched with the first lower guide rail and the second lower guide rail, the lower portion of the door leaf is guided, and stable operation of the door leaf is guaranteed.
The door plate is riveted with the inner skin and the outer skin by a welding frame, and the inside is filled with materials.
And the front gear of the door leaf is provided with an isolation lock hook component for isolation and locking of the system in an emergency.
The sliding plug door system further comprises an electric control system, the electric control system is fixed on the vehicle body, and the electric control system of the sliding plug door system is connected with the electric switches of the bearing driving mechanism and the pressing locking device through cables to achieve signal transmission.
The sliding plug door system further comprises an air path module.
The power source of the pressing locking device is electric or pneumatic.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the multi-point locking is realized through the pressing locking device, the door system is prevented from deforming during working, and the safety and the sealing performance of high-speed running of a train are ensured; adopts a 90-degree plugging mode and has plugging adjustability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged view of a portion of apparatus I;
FIG. 4 is a partial three-dimensional perspective view of device I;
FIG. 5 is a partial enlarged view of apparatus II;
FIG. 6 is a partial three-dimensional perspective view of device II;
figure 7 is a schematic view of a door system compression lock arrangement.
Detailed Description
As shown in fig. 1 and 2, the concealed sliding plug door system of the high-speed motor train unit comprises a door leaf 5, a bearing driving mechanism 3 and a pressing locking device, wherein the bearing driving mechanism 3 is arranged at the top of the door leaf 5, the pressing locking device comprises a single-point pneumatic pressing locking device 6 and a linkage pneumatic pressing locking device, and the single-point pneumatic pressing locking device 6 is arranged at two sides of an inlet of a train body; the linkage pneumatic pressing locking device comprises an upper linkage pressing locking device 4 and a lower linkage pressing locking device 7 which are arranged at the upper end and the lower end of a door leaf 5.
The longitudinal direction of the car body is defined as X direction, and the direction vertical to the door 5 is defined as Y direction. As shown in fig. 3 to 4, the load drive mechanism 3 includes a load rail 13 and an electric cylinder 12, the load rail 13 is connected to the vehicle body by mounting brackets 21 arranged at a plurality of positions along the X direction, and the electric cylinder 12 is connected to the load rail 13 by bolts. Five groups of bearing trolleys 14 are uniformly arranged on the bearing guide rail 13 along the X direction, wherein one bearing trolley 14 is connected with the electric cylinder 12 through a transmission plate, the bearing trolley comprises a first roller 1401, a limiting wheel 1402, a trolley 1403 and a short guide post 1404, and the first roller 1401 and the limiting wheel 1402 on the bearing trolley 14 roll in a corresponding groove of the bearing guide rail 13 to realize a bearing guide effect; the upper slideway 18 is arranged on the bearing guide rail 13, and the upper slideway roller 1502 on the hanger component 15 moves in the upper slideway 18 to realize the motion guide of the door leaf 5; the sliding cylinder assembly 1501 on the hanger assembly 15 is connected with the carrying trolley 14 through the short guide post 1404 and can move on the short guide post 1404 along the Y direction; one end of the door carrying frame 17 is connected with the hanging frame assembly 15 through a shaft hole, and the mounting plate at the other end is fixed with the door leaf 5 through a fastening piece.
The door leaf 5 comprises a door plate, a pressing plate and a pressing baffle plate, wherein the pressing plate is arranged on a front stop and a rear stop of the door plate, and the pressing plate is connected with the single-point pneumatic pressing locking device 6 and provides a pressing point for the single-point pneumatic pressing locking device 6; the pressing baffle is arranged below the door leaf 5 and is evenly arranged at five positions along the X direction, and the pressing baffle is connected with the linkage pneumatic pressing locking device to provide a pressing point for the lower linkage pneumatic pressing locking device 7. The door plate is riveted with the inner skin and the outer skin by a welding frame, and the inside is filled with materials.
As shown in fig. 5-6, the door leaf 5 further includes a first roller bracket 20 and a second roller bracket 19, the first roller bracket 20 and the second roller bracket 19 are respectively installed at two sides of the lower portion of the door leaf and respectively matched with the first lower guide rail 8 and the second lower guide rail 9, the first lower guide rail and the second lower guide rail are respectively fixed on the vehicle body, the first lower guide rail 8 is installed at the entrance of the door system, and the second lower guide rail 9 is installed at the side wall of the door leaf 5 in the opening direction. The first roller bracket 20 includes a bracket 2001 and a third roller 2002.
The sliding plug door system further comprises an electric control system 1 and an air path module 2, wherein the electric control system 1 is fixed on the vehicle body and is respectively connected with an electric switch of the bearing driving mechanism 3 and the pressing locking device through cables
When the door leaf 5 is closed, the electric cylinder 12 drives the door leaf 5 to move along the direction X through the carrying trolley 14, the hanger assembly 15 and the door carrying frame 17. In the moving process, the upper slideway rollers 1502 on the bearing trolleys 14 distributed at two ends move along the upper slideway 18 to guide and restrain two ends of the upper part of the door leaf 5, and a first roller bracket 20 and a second roller bracket 19 which are arranged at the front part and the rear part below the door leaf 5 respectively move along the first lower guide rail 8 and the second lower guide rail 9 to guide and restrain the lower part of the door leaf 5, so that the stable operation of the door leaf 5 is realized; when the door leaf 5 is closed in place, the single-point pressing locking device 6 acts to push the door leaf 5 and the door carrying frame 17 to perform Y-direction sliding movement along the short guide post 1404 and lock, the return spring 16 is pressed, and the door system is locked in place. Referring to fig. 7, considering that the opening degree of the door system is large, the lateral size of the door leaf 5 is large, an upper linkage pressing locking device 4 and a lower linkage pressing locking device 7 are respectively installed on the upper side and the lower side of the door leaf 5, when the door leaf 5 is locked in place, a driving cylinder 401 pulls a pull rod 402, the pull rod 402 drives a swing rod 403 to move, pressing and locking are achieved through a second roller 404, the door is locked, and the upper linkage pressing locking device and the lower linkage pressing locking device are respectively provided with five groups of swing rod rollers, so that 10 constraint points are provided in total, and the door leaf 5 is prevented from deforming in the operation process; meanwhile, four side stop pins 11 arranged on two sides of the door leaf 5 are contacted with the entrance of the vehicle body to provide restraint along the X direction after the door leaf 5 is locked in place. The single-point pressing locking devices 6 are arranged on two sides of the vehicle body and respectively provide three-point restraint for the front rail and the rear rail of the door leaf 5; two groups of isolation lock hook assemblies 10 are arranged at the front stop of the door leaf 5 and are used for isolation locking of the door system in emergency.
When the door leaf 5 is opened, firstly the upper linkage pressing locking device 4 and the lower linkage pressing locking device 7 are loosened, the single-point pressing locking device 6 is loosened, the lower part of the door leaf 5 swings inwards under the action of gravity, the hanger component 15 moves inwards along the short guide post 1404 under the action of the return spring 16 and drives the door leaf 5 to move inwards along the Y direction through the door carrying frame 17, meanwhile, the upper slideway roller 1502 of the hanger component 15 returns to the straight section of the upper slideway 18, the first roller 1401 of the first roller bracket 20 and the second roller bracket 19 below enters the first lower guide rail 8 and the second lower guide rail 9, the door system is reset to a closed position, and the electric cylinder 12 moves to drive the door leaf 5 to open along the X direction.

Claims (10)

1.一种高速动车组内藏塞拉门系统，其特征在于，包括门扇(5)、承载驱动机构(3)和压紧锁闭装置，所述承载驱动机构(3)设置在门扇(5)的顶部，所述压紧锁闭装置包括单点气动压紧锁闭装置(6)和联动气动压紧锁闭装置，所述单点气动压紧锁闭装置(6)设置在车体入口两侧；所述联动气动压紧锁闭装置包括分别设置在门扇(5)上、下两端的上部联动压紧锁闭装置(4)和下部联动压紧锁闭装置(7)。1. A high-speed EMU built-in plug sliding door system is characterized in that, comprising a door leaf (5), a load-bearing drive mechanism (3) and a compression locking device, and the load-bearing drive mechanism (3) is arranged on the door leaf (5) ), the pressing and locking device includes a single-point pneumatic pressing and locking device (6) and a linkage pneumatic pressing and locking device, and the single-point pneumatic pressing and locking device (6) is arranged at the entrance of the vehicle body two sides; the interlocking pneumatic pressing and locking device comprises an upper interlocking pressing and locking device (4) and a lower interlocking pressing and locking device (7) respectively arranged on the upper and lower ends of the door leaf (5). 2.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，所述承载驱动机构(3)包括承载导轨(13)和电动缸(12)，所述承载导轨(13)上布置多处安装架(21)与车体连接，所述电动缸(12)通过螺栓与承载导轨(13)连接，上滑道(18)设置在承载导轨(13)上。2. The built-in sliding door system for a high-speed EMU according to claim 1, wherein the load-bearing drive mechanism (3) comprises a load-bearing guide rail (13) and an electric cylinder (12), and the load-bearing guide rail (13) A plurality of mounting brackets (21) are arranged on the ) to be connected to the vehicle body, the electric cylinder (12) is connected to the bearing guide rail (13) through bolts, and the upper slideway (18) is arranged on the bearing guide rail (13). 3.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，所述承载驱动机构(3)还包括承载小车(14)，所述承载小车(14)的第一滚轮(1401)及限位轮(1402)与承载导轨(13)的滑槽配合，挂架组件(15)安装在承载小车(14)的短导柱(1404)上并与携门架(17)相连，携门架(17)另一端通过紧固件与门扇(5)相连。3. The built-in sliding door system for high-speed EMUs according to claim 1, wherein the load-bearing drive mechanism (3) further comprises a load-bearing trolley (14), and the first roller of the load-bearing trolley (14) (1401) and the limit wheel (1402) are matched with the chute of the bearing guide rail (13), the hanger assembly (15) is mounted on the short guide post (1404) of the bearing trolley (14) and is connected with the door carrier (17) The other end of the door carrying frame (17) is connected with the door leaf (5) through a fastener. 4.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，所述门扇(5)包括门板、压板和压紧挡板，所述压板设置在门板前档和后档，所述压板与单点气动压紧锁闭装置(6)连接，所述压紧挡板设置在门扇(5)下方，所述压紧挡板与联动气动压紧锁闭装置连接。4. The built-in plug sliding door system for high-speed EMUs according to claim 1, wherein the door leaf (5) comprises a door panel, a pressing plate and a pressing baffle, and the pressing plate is arranged on the front and rear gears of the door panel The pressing plate is connected with the single-point pneumatic pressing and locking device (6), the pressing baffle is arranged under the door leaf (5), and the pressing baffle is connected with the linkage pneumatic pressing and locking device. 5.根据权利要求4所述的高速动车组内藏塞拉门系统，其特征在于，所述门扇(5)还包括第一滚轮支架(20)和第二滚轮支架(19)，第一滚轮支架(20)和第二滚轮支架(19)分别安装在门板下部的两侧，分别与第一下导轨(8)和第二下导轨(9)配合，第一、二下导轨分别固定在车体上，第一下导轨(8)安装在门系统入口处，第二下导轨(9)安装在门扇(5)打开方向的侧墙处。5. The built-in plug sliding door system for a high-speed EMU according to claim 4, wherein the door leaf (5) further comprises a first roller bracket (20) and a second roller bracket (19), the first roller bracket (19). The bracket (20) and the second roller bracket (19) are respectively installed on both sides of the lower part of the door panel, and are respectively matched with the first lower guide rail (8) and the second lower guide rail (9), and the first and second lower guide rails are respectively fixed on the vehicle. On the body, the first lower guide rail (8) is installed at the entrance of the door system, and the second lower guide rail (9) is installed at the side wall in the opening direction of the door leaf (5). 6.根据权利要求4所述的高速动车组内藏塞拉门系统，其特征在于，所述门板由焊接框架与内、外蒙皮铆接，内部填充材料。6 . The built-in sliding door system for a high-speed EMU according to claim 4 , wherein the door panel is riveted to the inner and outer skins by a welded frame, and the interior is filled with materials. 7 . 7.根据权利要求4所述的高速动车组内藏塞拉门系统，其特征在于，所述门扇(5)的前档设置隔离锁钩组件(10)。7 . The built-in plug sliding door system for high-speed EMUs according to claim 4 , characterized in that, the front gear of the door leaf ( 5 ) is provided with an isolation lock hook assembly ( 10 ). 8 . 8.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，该系统还包括电控系统(1)，所述电控系统(1)固定在车体上，通过电缆线分别与承载驱动机构(3)和压紧锁闭装置的电气开关相连接。8. The built-in plug sliding door system for high-speed EMUs according to claim 1, characterized in that the system further comprises an electric control system (1), the electric control system (1) is fixed on the vehicle body, and the electric control system (1) is fixed on the vehicle body through cables. The wires are respectively connected to the electrical switches carrying the drive mechanism (3) and the compression locking device. 9.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，该系统还包括气路模块(2)。9. The built-in plug sliding door system for a high-speed EMU according to claim 1, characterized in that, the system further comprises an air circuit module (2). 10.根据权利要求1所述的高速动车组内藏塞拉门系统，其特征在于，所述压紧锁闭装置的动力源为电动或气动式。10 . The built-in sliding door system for a high-speed EMU according to claim 1 , wherein the power source of the pressing and locking device is electric or pneumatic. 11 .
CN202110134281.XA 2021-01-29 2021-01-29 Built-in sliding plug door system of high-speed motor train unit Pending CN112721975A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112901026A (en) * 2021-05-07 2021-06-04 常州市新创智能科技有限公司 Large-opening-degree inner plug car door structure
CN113279655A (en) * 2021-06-16 2021-08-20 常州市新创智能科技有限公司 Large-opening train door structure

Citations (5)

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Publication number Priority date Publication date Assignee Title
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CN202611498U (en) * 2012-05-22 2012-12-19 中国人民解放军总参谋部工程兵科研三所 Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail
KR20160000733A (en) * 2014-06-25 2016-01-05 (주)소명 Door system for high-speed freight train
CN108193959A (en) * 2018-03-19 2018-06-22 南京康尼机电股份有限公司 Sliding plug door of motor train unit system
CN115405186A (en) * 2022-09-02 2022-11-29 今创集团股份有限公司 Two sealing door systems that open of super large opening

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CN113279655B (en) * 2021-06-16 2021-09-17 常州市新创智能科技有限公司 Large-opening train door structure

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