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公开(公告)号：US11865379B2
公开(公告)日：2024-01-09
申请号：US17310322
申请日：2020-04-21
发明人： Zizhao Liu , Zhixin Liu , Eugene Wang , Yongqiang Song
CPC分类号： A62B35/0068 , A62B35/0081 , F16D63/008 , A62B35/0062
摘要： The present application relates to the technical field of linkage mechanisms, and provides a linkage operation assembly, a fall protection device and a fall protection system. The linkage operation assembly includes a fixed main body configured to be installed on an outer support surface of a rail and move along the rail; a second wheel body assembly installed on the fixed main body for rolling along an inner support surface of the rail and including a second wheel set and a drive rotary shaft; a third wheel body assembly installed on the fixed main body for rolling along an inner support surface of the rail and including a third wheel set and a driven rotary shaft; and a linkage member disposed between the drive rotary shaft and the driven rotary shaft. When the drive rotary shaft of the linkage operating assembly rotates, the second wheel set is driven to rotate, and the driven rotary shaft and the third wheel set are driven to rotate through the linkage member. Therefore, during the installation process of the linkage operation assembly, only the drive rotary shaft needs to be rotated to switch the state of the linkage operation assembly, so as to facilitate the installation of the linkage operation assembly. Similarly, when the linkage operation assembly is disassembled, only the drive rotary shaft needs to be rotated.
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公开(公告)号：US12090350B2
公开(公告)日：2024-09-17
申请号：US17310320
申请日：2020-04-21
发明人： Zizhao Liu , Zhixin Liu , Eugene Wang , Yongqiang Song
CPC分类号： A62B35/0068 , A62B35/0081 , F16D63/008 , A62B35/0062
摘要： The present application relates to the technical field of aerial climbing and transportation operations, and provides a fall protection locking assembly, a fall protection device and a fall protection system. The fall protection locking assembly includes a fixed main body, configured to be installed to a rail through a first wheel body assembly containing a wheel shaft; a lockup member installed on the fixed main body and be switched between a lockup position and a free position; and a first trigger mechanism installed to the fixed main body, the first trigger mechanism includes a transmission member and a drive member, the transmission member is configured to be installed to the wheel shaft and rotate with the wheel shaft, and the transmission member is switched with changes in centrifugal force between a first position, in which the transmission member is disengaged from the drive member in the first position, and a second position, in which the transmission member transmits the rotation of the wheel shaft to the drive member so that the drive member rotates to drive the lockup member to move to the lockup position. When an operator accidentally falls, a wheel shaft will have a higher rotational speed, and then a transmission member will drive the drive member to move together under the action of centrifugal force, thereby driving the lockup member moves to the lockup position to ensure the safety of use.
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公开(公告)号：US20230064276A1
公开(公告)日：2023-03-02
申请号：US17758756
申请日：2020-09-29
发明人： Yongqiang Song , Zizhao Liu , Zhixin Liu
摘要： A rope locking apparatus includes a main shaft and a friction wheel pair having friction surfaces used for clamping a rope. A centrifugal member is switches between a centrifugal state and a reset state as the rotation speed of the friction wheel pair changes The centrifugal member drives the main shaft to rotate when it is in the centrifugal state, and is separated from the main shaft when it is in the reset state. The two friction wheels are respectively installed at two ends of the main shaft. A lock located between the two friction surfaces and arranged on the main shaft is adapted to rotate along with the main shaft, to make the lock switch between a locked state and an unlocked state. In the centrifugal state, the main shaft drives the lock to the locked state; and in the reset state, the lock is in the unlocked state.
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公开(公告)号：US11420849B2
公开(公告)日：2022-08-23
申请号：US16513456
申请日：2019-07-16
发明人： Zizhao Liu , Qingwei Zhang , Guozhu Zhang
IPC分类号： B66B11/04 , B66B1/30 , B66B1/32 , B66B1/34 , B66B5/00 , B66B5/04 , B66B5/18 , B66B9/00 , B66B11/00 , E06C7/18 , B66B5/28
摘要： The present application relates to the technical field of lifting equipment, and provides a traction machine and a lifting equipment. The traction machine includes traction pulleys, traction ropes driven by the traction pulleys and fixed pulleys for changing directions of the traction ropes. The fixed pulley is provided with a sensor sensing member rotating with the fixed pulley, a traction machine sensor is arranged beside the fixed pulley; the traction machine sensor is configured to detect a rotation speed of the sensor sensing member, and send the rotation speed to a controller of the traction machine; the controller controls a rotation of the traction pulley according to detected data of the traction machine sensor. Since this kind of traction machine is provided with the sensor sensing member and the traction machine sensor, it is capable of detecting whether the traction machine has an abnormal operation, and stopping the traction machine immediately in an abnormal state.
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