The present invention relates to a positioning module and a driving control device of carrier unit with the positioning module. In the present invention, the positioning module calculates the unwinding length and unwinding angle of a wire which is unwound by an external force. Then, the positioning module sequentially calculates location information of some points on the wire and the speed of the wire. When the speed exceeds the threshold value, the positioning module generates a control signal corresponding to the number of times where the speed exceeds the threshold value, by using the unwinding length and the unwinding angle.

The present invention relates to a positioning module and a driving control device of carrier unit with the positioning module. In the present invention, the positioning module calculates the unwinding length and unwinding angle of a wire which is unwound by an external force. Then, the positioning module sequentially calculates location information of some points on the wire and the speed of the wire. When the speed exceeds the threshold value, the positioning module generates a control signal corresponding to the number of times where the speed exceeds the threshold value, by using the unwinding length and the unwinding angle.

A walk-behind tractor has an increased ground clearance to define a plant receiving space that has a greater height than a conventional walk-behind tractor having a straight axle. The walk-behind tractor has trailing drop arms from a frame that carry wheel axles that result in an elevated height of a driveshaft. The elevated driveshaft increases the ground clearance for taller plants to pass therebeneath during operation of the walk-behind tractor which would otherwise be too tall to pass below a conventional straight axle walk-behind tractor.

The present invention discloses a brake handle device and an electric tractor. The brake handle device includes a seat body, a microswitch, a wrench and an elastic piece, wherein the microswitch is electrically connected with a driving motor and a power supply, and includes a main body part and a braking part; the main body part is arranged on the seat body; the braking part extends into the main body part and can elastically expand and contract relative to the main body part; the wrench is rotatably arranged on the seat body and can be abutted against the braking part; and the elastic piece is arranged on the seat body and connected with the wrench. The wrench is held to drive the wrench to rotate in the direction close to a handlebar; and the wrench is released to make the wrench rotate and reset.

The present invention discloses a brake handle device and an electric tractor. The brake handle device includes a seat body, a microswitch, a wrench and an elastic piece, wherein the microswitch is electrically connected with a driving motor and a power supply, and includes a main body part and a braking part; the main body part is arranged on the seat body; the braking part extends into the main body part and can elastically expand and contract relative to the main body part; the wrench is rotatably arranged on the seat body and can be abutted against the braking part; and the elastic piece is arranged on the seat body and connected with the wrench. The wrench is held to drive the wrench to rotate in the direction close to a handlebar; and the wrench is released to make the wrench rotate and reset.

The invention provides a garden tool, which comprises a traveling assembly, a travel-driven assembly and a control assembly. The traveling assembly comprises front wheel and rear wheel. The travel-driven assembly comprises a front-drive mechanism for driving the front wheel and a rear-drive mechanism for driving the rear wheels. The control assembly controls the work of the front-drive mechanism and the rear-drive mechanism, so as to enable the front wheel and the rear wheel to respectively move forward or backward. Compared with the prior art, the garden tool drives the front wheels and the rear wheels to move forward or backward respectively through the front-drive mechanism and the rear-drive mechanism, and thus not only the garden tool automatically walks backward, but also the traveling assembly can be ensured to obtain sufficient power, thereby the garden tool is prevented from slipping when climbing and retreating.

An apparatus comprising a platform; a plurality of trucks coupled to the platform; and a roller assembly coupled to the platform, wherein the roller assembly is configured for an omnidirectional rotation, wherein the roller assembly is configured for an elastic biasing, wherein the roller assembly is driven by a motor.

There is provided a moving base which includes a front base with front wheels and a rear base with rear wheels, the front and rear base extendable in a front-rear direction of a vehicle; a seat movable between a seating position and a folded position; a motor which drives the front and/or rear wheel; a sensor which detects the seating position and the folded position; a display part for displaying information related to the seating position or the folded position detected by the sensor to a user; and a control unit which controls the motor in accordance with operation of an operating part, and which can execute control such that a driving operation of the motor by the operating part is disabled when the sensor does not detect the seating or folded position.

There is provided a moving base which includes a front base with front wheels and a rear base with rear wheels, the front and rear base extendable in a front-rear direction of a vehicle; a seat movable between a seating position and a folded position; a motor which drives the front and/or rear wheel; a sensor which detects the seating position and the folded position; a display part for displaying information related to the seating position or the folded position detected by the sensor to a user; and a control unit which controls the motor in accordance with operation of an operating part, and which can execute control such that a driving operation of the motor by the operating part is disabled when the sensor does not detect the seating or folded position.

A vehicle system includes a chassis, a plurality of wheels coupled to the chassis and supporting the chassis for rolling on a surface, and a riding platform coupled to the chassis. The riding platform is for supporting a user behind the chassis when the riding platform is in a downward pivoted state. A linkage connects the riding platform to the chassis for selective pivotal motion relative to the chassis between an upward pivoted state in which the riding platform is pivoted into a position to allow a user to walk behind the chassis and a downward pivoted state in which the user may ride or step on the platform.