US 12,350,966 B2Granted

Material vehicle, traction apparatus and system, and method for controlling bidirectional traveling of material vehicle

AssigneeBeijing Jingdong Qianshi Technology Co., Ltd.

InventorsNingbo Xue, Jinxing Hu

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Abstract

A material vehicle, a traction apparatus and system, a method for controlling the bidirectional traveling of a material vehicle, and a storage medium. A material vehicle (10) comprises a vehicle body (101), an unlocking assembly (102), a plurality of front universal wheels (103) and a plurality of rear universal wheels (104), wherein the plurality of front universal wheels (103) and the plurality of rear universal wheels (104) are all in a locked state; the vehicle body (101) is used for placing a target article; the unlocking assembly (102) is used for releasing the plurality of front universal wheels (103) from the locked state when same are in a horizontal rotation direction, and controlling the material vehicle (10) to travel in a first direction by means of the plurality of front universal wheels (103); and the unlocking assembly (102) is further used for releasing the plurality of rear universal wheels (104) from the locked state when same are in the horizontal rotation direction, and controlling the material vehicle (10) to travel in a second direction by means of the plurality of rear universal wheels (104), the first direction and the second direction being opposite to each other. By means of the unlocking assembly, the plurality of front universal wheels or the plurality of rear universal wheels can be released from the locked state thereof, such that the material vehicle can change the positions of driving wheels, and bidirectional traveling can be realized without needing to turn the material vehicle around.

Claims15

Dependent claims

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.

1 more element

A material vehicle system, at least comprising a traction apparatus and a material vehicle towed by the traction apparatus, wherein

the material vehicle comprises 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 of the material vehicle, 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 of the material vehicle 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, wherein the first direction is opposite to the second direction;
and
the traction apparatus comprises a vehicle body and a traction assembly connected to a top of the vehicle body of the traction apparatus;
the traction apparatus is configured to:
tow the material vehicle to travel in the first direction after engaging with the front traction interface of the material vehicle;
and
tow the material vehicle to travel in the second direction after turning around by rotating in a bottom space of the material vehicle and engaging with the rear traction interface of the material vehicle.

8 more elements

A method for controlling a bidirectional travelling of a material vehicle, applied to a material vehicle system comprising a traction apparatus and the material vehicle towed by the traction apparatus, the material vehicle at least comprising 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 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;

and the method comprises:
controlling the traction apparatus to establish a tractive connection with the material vehicle and controlling the traction apparatus to travel in a first or second direction;
in response to the traction apparatus engaging with the front traction interface and being separated from the rear traction interface and travelling in the first direction, controlling the unlocking assembly to unlock the plurality of front universal wheels from the locked state in a horizontal rotation direction, to enable the traction apparatus to drive the material vehicle to travel in the first direction through the plurality of front universal wheels;
and
in response to the traction apparatus engaging with the rear traction interface and being separated from the front traction interface and travelling in the second direction, controlling the unlocking assembly to unlock the plurality of rear universal wheels from the locked state in the horizontal rotation direction, to enable the traction apparatus to drive the material vehicle to travel in the second direction through the plurality of rear universal wheels, wherein the first direction is opposite to the second direction.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/245,630Filed 13 Sep 2021
Priority: CN 202011189222.430 Oct 2020
Published: US 2023/0331322 A119 Oct 2023
Granted: 8 Jul 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B60B 33/02
Castors in general ; Anti-clogging castors: with disengageable swivel action , i.e. comprising a swivel locking mechanism
B60B 33/025
With disengageable swivel action , i.e. comprising a swivel locking mechanism: by using form-fit, e.g. front teeth
B60B 33/026
With disengageable swivel action , i.e. comprising a swivel locking mechanism: being actuated remotely, e.g. by cable or electrically
B60B 33/028
With disengageable swivel action , i.e. comprising a swivel locking mechanism: being actuated automatically