Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.

Jigang Zhou

Xin Zhang

Chao Lin

Xiangrui Li

Jingquan Bi

Chaoheng Wang

Provided is a hand brake limiting device, comprising a bearing I (), a spring, a spring holder (), a guide plate (), and a guide plate holder (); the bearing I () is disposed on the spring holder (); the spring is sleeved on the outside of the bearing I (); the guide plate () and the guide plate holder () are sequentially disposed at one side of the spring away from the spring holder (); a stopper post III () is secured to one side of the spring holder () facing the spring; a stopper post In () is secured to one side of the guide plate () facing the spring; a stopper post II () is secured to one side of the guide plate holder () facing the guide plate ().

Hand brake limiting device

Provided is a hand brake, comprising a hand wheel (), a chain (), an enclosure (), a drive shaft assembly () which is disposed in the enclosure (), bull gear (), and base assembly; the hand wheel () is connected to the drive shaft assembly (), one end of the chain () is fixed to the bull gear () by means of rivets, and the main shaft of the bull gear () is a chain winding shaft (). The hand brake further comprises a limiting device disposed on the chain winding shaft () between the bull gear () and the base (); the limiting device comprises a first bearing (), a torsion spring (), a guide plate (), and a guide plate holder (). Installing the hand brake not only prevents the problem of the chain interfering with the movable pulley when the hand brake is deployed and thus affecting the performance of the hand brake, but also provides for a better appearance.

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Shandong, China

Jigang Zhou