US 12,350,966 B2
Material vehicle, traction apparatus and system, and method for controlling bidirectional traveling of material vehicle
Ningbo Xue, Beijing (CN); and Jinxing Hu, Beijing (CN)
Assigned to BEIJING JINGDONG QIANSHI TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 18/245,630
Filed by BEIJING JINGDONG QIANSHI TECHNOLOGY CO., LTD., Beijing (CN)
PCT Filed Sep. 13, 2021, PCT No. PCT/CN2021/118061
§ 371(c)(1), (2) Date Mar. 16, 2023,
PCT Pub. No. WO2022/089059, PCT Pub. Date May 5, 2022.
Claims priority of application No. 202011189222.4 (CN), filed on Oct. 30, 2020.
Prior Publication US 2023/0331322 A1, Oct. 19, 2023
Int. Cl. B60B 33/02 (2006.01); B60P 3/00 (2006.01); B62D 53/00 (2006.01); B65G 1/04 (2006.01); B65G 1/137 (2006.01)
CPC B60B 33/02 (2013.01) [B60P 3/007 (2013.01); B62D 53/005 (2013.01); B65G 1/0492 (2013.01); B65G 1/137 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A material vehicle, towed by a traction apparatus, the material vehicle comprising a vehicle body, an unlocking assembly, a plurality of front universal wheels, a plurality of rear universal wheels, a front locking device, a rear locking device, a front traction interface, and a rear traction interface, wherein the unlocking assembly comprises a front connecting rod device connected to the front traction interface, and a rear connecting rod device connected to the rear traction interface and separated from the front connecting rod device, wherein the unlocking assembly, the plurality of front universal wheels and the plurality of rear universal wheels are connected to a bottom of the vehicle body, the plurality of front universal wheels are connected to the front locking device and are in a locked state through control of the front locking device, and the plurality of rear universal wheels are connected to the rear locking device and are in a locked state through control of the rear locking device, wherein
the vehicle body is configured to place a target object;
the unlocking assembly is configured to unlock the plurality of front universal wheels from the locked state in a horizontal rotation direction in response to the traction apparatus engaging with the front traction interface and being separated from the rear traction interface and the traction apparatus travelling in a first direction, and the material vehicle is driven to travel in the first direction when the unlocked plurality of front universal wheels are driven by the traction apparatus travelling in the first direction; and
the unlocking assembly is further configured to unlock the plurality of rear universal wheels from the locked state in the horizontal rotation direction in response to the traction apparatus engaging with the rear traction interface and being separated from the front traction interface and the traction apparatus travelling in a second direction, and the material vehicle is driven to travel in the second direction when the unlocked plurality of rear universal wheels are driven by the traction apparatus travelling in the second direction, and wherein the first direction is opposite to the second direction.