CN108005513B - Bottom locking device for vehicle sliding plug door - Google Patents

Bottom locking device for vehicle sliding plug door Download PDF

Info

Publication number
CN108005513B
CN108005513B CN201810035800.5A CN201810035800A CN108005513B CN 108005513 B CN108005513 B CN 108005513B CN 201810035800 A CN201810035800 A CN 201810035800A CN 108005513 B CN108005513 B CN 108005513B
Authority
CN
China
Prior art keywords
sleeve
base
sliding plug
rotating arm
door
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201810035800.5A
Other languages
Chinese (zh)
Other versions
CN108005513A (en
Inventor
谭力
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 Chuangxiang Electric Co ltd
Original Assignee
Nanjing Chuangxiang Electric 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.)
Filing date
Publication date
Application filed by Nanjing Chuangxiang Electric Co ltd filed Critical Nanjing Chuangxiang Electric Co ltd
Priority to CN201810035800.5A priority Critical patent/CN108005513B/en
Publication of CN108005513A publication Critical patent/CN108005513A/en
Application granted granted Critical
Publication of CN108005513B publication Critical patent/CN108005513B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/06Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621Details, e.g. suspension or supporting guides
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36Locks for passenger or like doors
    • E05B83/40Locks for passenger or like doors for sliding doors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/06Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/10Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
    • E05D15/1005Suspension 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
    • E05D15/1007Suspension 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
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00Suspension arrangements for wings
    • E05D15/06Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/10Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
    • E05D15/1021Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane involving movement in a third direction, e.g. vertically
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/50Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/50Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53Type of wing
    • E05Y2900/531Doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Support Devices For Sliding Doors (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a bottom locking device for a vehicle sliding plug door, which comprises a base, a rotating arm, a sleeve, an operating rod, a door leaf and a guide rail, wherein the rotating arm is fixedly connected with the sleeve, one end of the rotating arm is rotatably supported in the base through the sleeve, the other end of the rotating arm is provided with a device rolling in the guide rail, the operating rod moves in the sleeve and is operated by a sliding plug door driving device, two spiral grooves which are spiral are symmetrically arranged on the wall of the sleeve, the end head of the spiral groove far away from the rotating arm is evolved into an axial direction, and two axial grooves are symmetrically arranged on the base. The invention reduces the space requirement, can lock the bottom of the sliding plug door safely and timely when the sliding plug door is closed, and has low manufacturing cost and simple assembly.

Description

Bottom locking device for vehicle sliding plug door
Technical Field
The present invention relates to a bottom locking device, and more particularly to a bottom locking device for a vehicle sliding plug door.
Background
With the widespread use of sliding plug door technology, there is a growing awareness of sliding plug doors. Typically, the top locking of a vehicle sliding plug door is suspended, guided and locked in place in the region of its upper horizontal edge and is operated by the sliding plug door drive. While the bottom of the sliding plug door is mostly guided by guide rollers or rails or other similar means to prevent collisions of the sliding plug door on the door frame and binding of the door leaves of the sliding plug door in the locked state. There are two basic schemes in the prior art:
the first scheme is that a vertical synchronous rotating lever is arranged on the side edge of a door opening of the sliding plug door, and after the sliding plug door reaches a closing terminal position, a top driving device of the sliding plug door provides rotating power, so that the bottom of the sliding plug door is restrained by locking and pressing.
The second scheme is that a guide rail with a certain curve shape is arranged at the tail end of a horizontal edge area at the bottom of the sliding plug door, and the guide rail and a guide device arranged at the corresponding position of the side edge of the door opening of the sliding plug door are combined to form a cam system, so that the door leaf of the sliding plug door is converted into a motion vertical to the plane of the door leaf along the longitudinal direction of the vehicle, and the door leaf is restrained at the locking terminal position.
The prior two technical schemes need to transfer the top constraint to the bottom through the torsion of the synchronizing rod or the door plate suspension piece, so that the constraint of the bottom locking position of the sliding plug door is formed.
Disclosure of Invention
The invention aims to: the object of the present invention is to solve the disadvantages of the prior art and to provide a bottom locking device for a vehicle sliding plug door, which bottom locking device is capable of increasing the restraint stiffness of the bottom locking position of the sliding plug door leaf and of reducing the space requirement without having to add additional device costs for this.
The technical scheme is as follows: the invention relates to a bottom locking device for a vehicle sliding plug door, which comprises a base, a rotating arm, a sleeve and an operating rod, wherein the base is fixedly arranged on a door frame of the sliding plug door, the base is of a hollow structure, and two axial grooves parallel to the axis of the base are symmetrically arranged on the side wall of the base; one end of the rotating arm is connected with a guide rail arranged in parallel with the bottom edge of the sliding plug door leaf through a rolling device, and the other end of the rotating arm is fixedly connected with the sleeve to rotatably support the sleeve in the base; the sleeve is of a hollow structure, two curved grooves are symmetrically formed in the side wall, one end of each curved groove, far away from the rotating arm, is parallel to the axis of the sleeve in the arrangement direction, and the other groove bodies are obliquely arranged on the axis of the sleeve; the operating rod stretches into the sleeve, the end part of the operating rod is transversely provided with a shaft with two ends stretching out, and the two ends of the shaft respectively stretch into the curve groove and the axial groove on the corresponding sides;
the operating rod slides up and down in the base to drive the sleeve to rotate in the base, and the base drives the rotating arm to rotate on a plane perpendicular to the door leaf along the guide rail to push or lock the door leaf.
In a further preferred technical scheme of the invention, the operating rod is connected with a sliding plug door driving device, and the sliding plug door driving device drives the sliding plug door driving device to slide up and down in the sleeve.
Preferably, two rollers are respectively arranged on two extending ends of the shaft, and each roller rolls in a corresponding curve groove and an axial groove.
Preferably, the rolling device comprises a roller bracket, two rollers are arranged on the roller bracket, and the rollers roll in the guide rail.
Preferably, the rolling device is a roller, and the roller rolls in the guide rail.
Preferably, the guide rail is horizontally mounted at the bottom edge of the door leaf.
Preferably, the base is fixed to the bottom region of the side edge of the door frame opposite the door leaf.
Preferably, the curved groove is spiral.
The beneficial effects are that: (1) The bottom locking device is connected with the door leaf through the rotating arm and the rolling device arranged at one end of the rotating arm, when the operating rod slides up and down, the two ends of the shaft at the bottom of the operating rod are limited by the axial grooves on the base and cannot deviate transversely, at the moment, the sleeve which is rotatably arranged in the base is driven by the operating rod to rotate, and the sleeve drives the rotating arm fixedly connected with the sleeve to rotate along the guide rail on the plane vertical to the door leaf, so that the door leaf is pushed open or locked, and the locking of the sliding plug door is realized; meanwhile, in the transverse opening and closing process of the sliding plug door, the rolling device rolls along the guide rail, so that the normal opening and closing of the door leaf is not influenced, after the sliding plug door is completely closed, the shaft at the bottom of the operating rod is positioned in the groove body, which is parallel to the axis of the sleeve, of the curved groove, and the sleeve is restrained to rotate by the groove body, so that the locking of the lower part of the door leaf is restrained at the closing position, the defect of the traditional device is thoroughly solved, and the bottom locking of the sliding plug door of a vehicle is more tightly, simply and quickly closed;
(2) The operating rod is connected with the sliding plug door driving device, the sliding plug door driving device drives the sliding plug door to slide up and down in the sleeve, the bottom of the sliding plug door can be safely and timely locked while the sliding plug door is closed by the driving device, the weakening of constraint in the process of transmitting top constraint to the bottom is avoided, and the constraint rigidity constraint can enable the bottom of the sliding plug door to be locked to achieve a satisfactory effect; at the same time, the locking device of the invention is simpler, more compact and easier to manufacture and assemble by the design;
(3) According to the invention, two rollers are respectively arranged at two extending ends of the shaft of the operating rod, each roller rolls in the corresponding curve groove and axial groove, so that the running smoothness of the whole locking device is improved, and the operating force, wear resistance and other performances of the locking device are improved;
(4) The rolling device can be in various forms, two rollers are arranged through the roller bracket, so that the stability of connection between the locking device and the door leaf and the fluency of relative movement are improved, the rollers can be directly arranged at the end part of the rotating arm, the rollers are embedded in the guide rail, the basically same effect can be achieved, and only the installation space or the locking strength or rigidity of the door leaf are relatively deteriorated, but the manufacturing cost can be reduced to a certain extent.
Drawings
Fig. 1 is a schematic view of the structure of the locking device of embodiment 1 of the present invention when locking a sliding door;
fig. 2 is a schematic view showing the structure of the locking device of embodiment 1 of the present invention when the sliding plug door is opened;
FIG. 3 is a schematic view showing the structure of a rotating arm and a sleeve according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of the structure of the base according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a locking device in embodiment 2 of the present invention.
Detailed Description
The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.
Example 1: the utility model provides a bottom locking device for vehicle sliding plug door, includes base 1, rotor arm 2, sleeve 3, action bars 4, door leaf 11, guide rail 12, and wherein rotor arm 2 is fixed connection with sleeve 3, and the one end of rotor arm 2 passes through sleeve 3 rotation support in base 1, and the device of rolling in guide rail 12 is installed to the other end of rotor arm 2, and action bars 4 remove in sleeve 3 and operate by sliding plug door drive arrangement, the wall symmetry of sleeve 3 is provided with two spiral groove 5 that are spiral, and the one end that the spiral groove 5 kept away from rotor arm 2 evolves into the axial, is provided with two axial grooves 6 on the base 1 symmetry. The end of the operating rod 4 is transversely provided with a shaft 7 with two ends extending out, each extending end of the shaft 7 is provided with two rollers 8, each roller 8 correspondingly rolls in the spiral groove 5 and the axial groove 6, the other end of the rotating arm 2 is hinged with a roller bracket 9, two rollers 10 are arranged on the roller bracket 9, the rollers 10 roll in a guide rail 12, the guide rail 12 is horizontally arranged at the bottom edge of the door leaf 11, and the base 1 is fixed in the bottom area of the side edge of the door frame opposite to the door leaf 11.
Referring to fig. 1 to 4, the working principle of the present invention is: firstly, the door leaf 11 of the sliding plug door is in a locked state from fig. 1 to an opened state from fig. 2, the operating rod 4 is controlled by the sliding plug door operating device to move downwards axially, the rollers 8 on the shafts 7 extending from the two lateral sides of the end of the operating rod roll in the spiral groove 5 and the axial groove 6 respectively, the direction of the spiral groove 5 corresponds to forcing the rotating arm 2 to rotate clockwise (overlook), and since the two rollers 10 hinged on the roller bracket 9 at the end of the rotating arm 2 are embedded in the guide rail 12, the downward movement of the operating rod 4 pushes the door leaf 11 to swing outwards, and when the operating rod 4 moves downwards to the lowest stroke setting position, the rotating arm 2 just rotates to the maximum swing position of the door leaf 11, namely the state shown in fig. 2.
The process of the door leaf 11 of the sliding plug door from the open state of fig. 2 to the locked state of fig. 1 is contrary, and the roller 8 finally stays in the groove body which is formed by the axial direction of the end part of the spiral groove 5, so that the device has the rotation locking function on the rotating arm 2 at the door leaf 11 closing locking position, and the purpose of locking and restraining the bottom of the door leaf 11 is achieved.
Example 2: as shown in fig. 5, the same effect as in embodiment 1 can be achieved by using a roller 13 mounted on the end of the rotating arm 2 and having the roller 13 embedded in the guide rail 12, and the shaft 7 inserted into the spiral groove 5 and the shaft groove 6, respectively, and the rest of the structure is the same as in embodiment 1, except that the mounting space, the operation resistance, or the locking strength or rigidity to the door leaf is relatively deteriorated.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (2)

1. A bottom locking device for a vehicle sliding plug door, characterized by: the sliding door comprises a base, a rotating arm, a sleeve and an operating rod, wherein the base is fixedly arranged on a door frame of a sliding plug door, the base is of a hollow structure, and two axial grooves parallel to the axis of the base are symmetrically formed in the side wall of the base; one end of the rotating arm is connected with a guide rail parallel to the bottom edge of the sliding plug door leaf through a rolling device, and the other end of the rotating arm is fixedly connected with the sleeve to rotatably support the sleeve in the base; the sleeve is of a hollow structure, two curved grooves are symmetrically formed in the side wall, one end of each curved groove, far away from the rotating arm, is parallel to the axis of the sleeve in the arrangement direction, and the other groove bodies are obliquely arranged on the axis of the sleeve; the operating rod stretches into the sleeve, the end part of the operating rod is transversely provided with a shaft with two ends stretching out, and the two ends of the shaft respectively stretch into the curve groove and the axial groove on the corresponding sides; the operating rod slides up and down in the base to drive the sleeve to rotate in the base, and the base drives the rotating arm to rotate on a plane perpendicular to the door leaf along the guide rail to push or lock the door leaf; two first rollers are respectively arranged at two extending ends of the shaft, and each roller rolls in the corresponding curve groove and axial groove; the rolling device comprises a roller bracket, two second rollers are arranged on the roller bracket, and the rollers roll in the guide rail; the guide rail is horizontally arranged at the bottom edge of the door leaf; the curved groove is spiral.
2. The bottom locking device for a vehicle sliding plug door according to claim 1, wherein: the base is fixed in the bottom area of the side edge of the door frame opposite to the door leaf.
CN201810035800.5A 2018-01-15 2018-01-15 Bottom locking device for vehicle sliding plug door Active CN108005513B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810035800.5A CN108005513B (en) 2018-01-15 2018-01-15 Bottom locking device for vehicle sliding plug door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810035800.5A CN108005513B (en) 2018-01-15 2018-01-15 Bottom locking device for vehicle sliding plug door

Publications (2)

Publication Number Publication Date
CN108005513A CN108005513A (en) 2018-05-08
CN108005513B true CN108005513B (en) 2023-11-21

Family

ID=62050616

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810035800.5A Active CN108005513B (en) 2018-01-15 2018-01-15 Bottom locking device for vehicle sliding plug door

Country Status (1)

Country Link
CN (1) CN108005513B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109630636A (en) * 2019-02-14 2019-04-16 申翊辰 A kind of machine driving falls to rotate forward changing device
CN109854105A (en) * 2019-04-11 2019-06-07 谭力 A kind of bottom locking device for vehicle sliding plug door
CN114687291A (en) * 2022-04-08 2022-07-01 中联重科股份有限公司 Locking method of mechanical bridge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837209A2 (en) * 1996-10-21 1998-04-22 IFE Industrie-Einrichtungen Fertigungs-Aktiengesellschaft Swinging and sliding door for vehicles
EP1568563A1 (en) * 2004-02-25 2005-08-31 Gebr. Bode GmbH & Co. KG Device for locking a pivotable sliding door for vehicles for passenger transport, especially vehicles for urban passenger transport
CN201424025Y (en) * 2009-07-10 2010-03-17 北京博得交通设备有限公司 Electric sliding-plug door of high-speed vehicle
CN102303618A (en) * 2011-06-13 2012-01-04 南京康尼机电股份有限公司 Built-in plug door device for rail vehicle
CN103046827A (en) * 2011-10-17 2013-04-17 北京博得交通设备股份有限公司 Locking and unlocking mechanism of power-driven sliding plug door
CN107083881A (en) * 2017-06-23 2017-08-22 南京康尼机电股份有限公司 A kind of locking device for rail vehicle sliding plug door system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6346835B2 (en) * 2014-09-22 2018-06-20 ナブテスコ株式会社 Plug door opening and closing device and plug door device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837209A2 (en) * 1996-10-21 1998-04-22 IFE Industrie-Einrichtungen Fertigungs-Aktiengesellschaft Swinging and sliding door for vehicles
EP1568563A1 (en) * 2004-02-25 2005-08-31 Gebr. Bode GmbH & Co. KG Device for locking a pivotable sliding door for vehicles for passenger transport, especially vehicles for urban passenger transport
CN201424025Y (en) * 2009-07-10 2010-03-17 北京博得交通设备有限公司 Electric sliding-plug door of high-speed vehicle
CN102303618A (en) * 2011-06-13 2012-01-04 南京康尼机电股份有限公司 Built-in plug door device for rail vehicle
CN103046827A (en) * 2011-10-17 2013-04-17 北京博得交通设备股份有限公司 Locking and unlocking mechanism of power-driven sliding plug door
CN107083881A (en) * 2017-06-23 2017-08-22 南京康尼机电股份有限公司 A kind of locking device for rail vehicle sliding plug door system

Also Published As

Publication number Publication date
CN108005513A (en) 2018-05-08

Similar Documents

Publication Publication Date Title
CN108005513B (en) Bottom locking device for vehicle sliding plug door
CN201924728U (en) Sliding door and window wheel set
US20100050530A1 (en) Sliding Door
CN203430231U (en) Sliding support
CN107605310A (en) A kind of bearing driving mechanism of sliding door
CN200996238Y (en) Hidden hinge
CN101929133A (en) Shear door machine for automatic ticket checker
CN201010412Y (en) Synchronous door vane of elevator center opening door operator
CN112855046A (en) Multi-point locking mechanism of door system
CN205531870U (en) Hinge subassembly that can hide
CN216788172U (en) Pneumatic sliding plug door mechanism
CN204369384U (en) Elevator door lock device
CN201087591Y (en) Actuating mechanism of clutch for lock
CN202483328U (en) Mechanical impact damper and shower room sliding door thereof
CN210001395U (en) Compound building elevator car and elevator car lock
CN201495890U (en) Adjustable pulley of sliding door and window
CN212927482U (en) Refrigerator door closer
CN207972748U (en) Cabin sliding door
CN203531610U (en) Electric push-pull window
CN111749584A (en) Side-push hidden door connecting device and storage cabinet
CN112796600A (en) Hinge auxiliary device of furniture folding door
CN209494421U (en) A kind of mobile timber of chute type
CN102454327B (en) Non-standard door stroke compensating device
CN206859860U (en) A kind of Lock for theft-proof door assembling structure
CN101718162B (en) Buffering method for using spring hinge and buffering hinge

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20230413

Address after: 211299 Room 301, floor 3, No. 8 Futian Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province

Applicant after: Nanjing Rongbang Rail Transit Technology Co.,Ltd.

Address before: Room 203, No. 28, 23 Lane 280, Huatuo Road, Zhangjiang Town, Pudong New Area, Shanghai, 201203

Applicant before: Tan Li

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20230802

Address after: No. 21 Longtai Road, Jiangbei New District, Nanjing, Jiangsu Province, 211899

Applicant after: Nanjing Chuangxiang Electric Co.,Ltd.

Address before: 211299 Room 301, floor 3, No. 8 Futian Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province

Applicant before: Nanjing Rongbang Rail Transit Technology Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant