Patents by Inventor Qiangjun JIANG

Qiangjun JIANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10906562
    Abstract: A movable side wall and opening/closing mechanism for railroad boxcars, comprising a side wall assembly (1), an end-portion opening/closing mechanism (2), a hinged rod assembly (3), a lateral door central clamping device (4), a upper transmission shaft assembly (5), a lower transmission shaft assembly (6), a upper track assembly (7) and a lower track assembly (8); upon loading/unloading cargo, the movable side wall can be opened further, so as to allow multiple forklifts of any tonnage on the ground to load/unload cargo to/from any positions of a carriage; the hinged rod assembly (3) and the central clamping device (4) are provided to keep the movable side wall reliably closed in order to ensure security and self-locking during transportation.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 2, 2021
    Assignee: CRRC YANGTZE CO., LTD.
    Inventors: Donghua Xu, Qiangjun Jiang, Haitao Liu, Fengwei Liu, Wenliang Liu, Chuanfeng Jing, Baolei Wang, Jinfa Zhang, Xunqi Zhang, Huanyun Liu
  • Patent number: 10640133
    Abstract: The present invention discloses a connecting rod type two-level locking device, a hopper car bottom door and a hopper car, and belongs to the technical field of rail wagons. The connecting rod type two-level locking device includes a transmission shaft, a door opening arm, a first roller, a second roller, a first locating pin, a standstill locking disk and a linkage mechanism. The hopper car bottom door includes the connecting rod type two-level locking device. The hopper car includes the bottom door. Even if the connecting rod type two-level locking device is accidentally stressed, the linkage mechanism cannot rotate, and at this time, the slave arm cannot rotate neither. The accidental opening of the hopper car bottom door can be avoided. The hopper car is more reliable to use.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 5, 2020
    Assignee: CRRC Yangtze Corporation Limited
    Inventors: Chunjiang Shi, Mingdao Sun, Qiangjun Jiang, Fengwei Liu, Baolei Wang, Wenliang Liu, Chuqiang Tang, Ruijin Jiang, Liangcai Lin, Tiejun Fu
  • Publication number: 20180257673
    Abstract: A movable side wall and opening/closing mechanism for railroad boxcars, comprising a side wall assembly (1), an end-portion opening/closing mechanism (2), a hinged rod assembly (3), a lateral door central clamping device (4), a upper transmission shaft assembly (5), a lower transmission shaft assembly (6), a upper track assembly (7) and a lower track assembly (8); upon loading/unloading cargo, the movable side wall can be opened further, so as to allow multiple forklifts of any tonnage on the ground to load/unload cargo to/from any positions of a carriage; the hinged rod assembly (3) and the central clamping device (4) are provided to keep the movable side wall reliably closed in order to ensure security and self-locking during transportation.
    Type: Application
    Filed: November 2, 2016
    Publication date: September 13, 2018
    Applicant: CSR YANGZE CO., LTD.
    Inventors: Donghua XU, Qiangjun JIANG, Haitao LIU, Fengwei LIU, Wenliang LIU, Chuanfeng JING, Baolei WANG, Jinfa ZHANG, Xunqi ZHANG, Huanyun LIU
  • Publication number: 20180072333
    Abstract: The present invention discloses a connecting rod type two-level locking device, a hopper car bottom door and a hopper car, and belongs to the technical field of rail wagons. The connecting rod type two-level locking device includes a transmission shaft, a door opening arm, a first roller, a second roller, a first locating pin, a standstill locking disk and a linkage mechanism. The hopper car bottom door includes the connecting rod type two-level locking device. The hopper car includes the bottom door. Even if the connecting rod type two-level locking device is accidentally stressed, the linkage mechanism cannot rotate, and at this time, the slave arm cannot rotate neither. The accidental opening of the hopper car bottom door can be avoided. The hopper car is more reliable to use.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Applicant: CSR Yangze Co., Ltd.
    Inventors: Chunjiang SHI, Mingdao SUN, Qiangjun JIANG, Fengwei LIU, Baolei WANG, Wenliang LIU, Chuqiang TANG, Ruijin JIANG, Liangcai LIN, Tiejun FU
  • Patent number: 9789883
    Abstract: The present invention discloses a two-level locking device, a hopper car bottom door and a hopper car. The device includes a first transmission shaft, a second transmission shaft, a clutch, a pressure mechanism and a reset mechanism, wherein under the pressure action of the pressure mechanism, the clutch separates the first transmission shaft from the second transmission shaft, and under the action of the reset mechanism, the clutch joints the first transmission shaft with the second transmission shaft. The bottom door includes the device. The hopper car includes the bottom door. By adopting the device, when the clutch is accidently separated by the pressure action of the pressure mechanism, the reset mechanism can re-joint the clutch to prevent the accidental rotation of the first transmission shaft and the second transmission shaft. By adopting the bottom door, the hopper car bottom door opened and closed by a planar four-bar linkage passing a dead point is more reliable to use.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 17, 2017
    Assignee: CRRC Yangtze Corporation Limited
    Inventors: Chunjiang Shi, Mingdao Sun, Qiangjun Jiang, Fengwei Liu, Baolei Wang, Wenliang Liu, Chuqiang Tang, Ruijin Jiang, Liangcai Lin, Tiejun Fu
  • Publication number: 20160031454
    Abstract: The present invention discloses a connecting rod type two-level locking device, a hopper car bottom door and a hopper car, and belongs to the technical field of rail wagons. The connecting rod type two-level locking device includes a transmission shaft, a door opening arm, a first roller, a second roller, a first locating pin, a standstill locking disk and a linkage mechanism. The hopper car bottom door includes the connecting rod type two-level locking device. The hopper car includes the bottom door. Even if the connecting rod type two-level locking device is accidentally stressed, the linkage mechanism cannot rotate, and at this time, the slave arm cannot rotate neither. The accidental opening of the hopper car bottom door can be avoided. The hopper car is more reliable to use.
    Type: Application
    Filed: November 6, 2014
    Publication date: February 4, 2016
    Inventors: Chunjiang SHI, Mingdao SUN, Qiangjun JIANG, Fengwei LIU, Baolei WANG, Wenliang LIU, Chuqiang TANG, Ruijin JIANG, Liangcai LIN, Tiejun FU
  • Publication number: 20150353102
    Abstract: The present invention discloses a two-level locking device, a hopper car bottom door and a hopper car. The device includes a first transmission shaft, a second transmission shaft, a clutch, a pressure mechanism and a reset mechanism, wherein under the pressure action of the pressure mechanism, the clutch separates the first transmission shaft from the second transmission shaft, and under the action of the reset mechanism, the clutch joints the first transmission shaft with the second transmission shaft. The bottom door includes the device. The hopper car includes the bottom door. By adopting the device, when the clutch is accidently separated by the pressure action of the pressure mechanism, the reset mechanism can re-joint the clutch to prevent the accidental rotation of the first transmission shaft and the second transmission shaft. By adopting the bottom door, the hopper car bottom door opened and closed by a planar four-bar linkage passing a dead point is more reliable to use.
    Type: Application
    Filed: November 6, 2014
    Publication date: December 10, 2015
    Inventors: Chunjiang SHI, Mingdao SUN, Qiangjun JIANG, Fengwei LIU, Baolei WANG, Wenliang LIU, Chuqiang TANG, Ruijin JIANG, Liangcai LIN, Tiejun FU