Two-level locking device, hopper car bottom door and hopper car

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9789883
APP PUB NO 20150353102A1
SERIAL NO

14758705

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Abstract

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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. The hopper car is more reliable to use.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CRRC YANGTZE CORPORATION LIMITEDDAQIAO NEW AREA JIANGXIA ECONOMIC DEVELOPMENT ZONE WUHAN HB 430212

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fu, Tiejun Wuhan, CN 6 18
Jiang, Qiangjun Wuhan, CN 4 2
Jiang, Ruijin Wuhan, CN 6 2
Lin, Liangcai Wuhan, CN 10 6
Liu, Fengwei Wuhan, CN 113 171
Liu, Wenliang Wuhan, CN 30 29
Shi, Chunjiang Wuhan, CN 4 2
Sun, Mingdao Wuhan, CN 7 28
Tang, Chuqiang Wuhan, CN 7 7
Wang, Baolei Wuhan, CN 20 32

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