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公开(公告)号：US20210137005A1
公开(公告)日：2021-05-13
申请号：US17090860
申请日：2020-11-05
发明人： Feng Jiang , Wen Tao
摘要： 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.
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公开(公告)号：US11682911B2
公开(公告)日：2023-06-20
申请号：US17099526
申请日：2020-11-16
CPC分类号： H02J7/0013 , A01D34/78 , B25F5/02 , H02J7/0047
摘要： The invention provides a power tool, which comprises a motor, at least two battery packs supplying power to the motor and arranged in parallel. The power tool also comprises a relay control circuit used for connecting the motor and the battery packs, and the relay control circuit is provided with a controller, and a plurality of relay switch circuits connected with the controller. The controller is used for detecting the electric energy and/or an user state of battery packs and generates battery pack selection signals, the relay switch circuits and the battery packs are arranged one-to-one, the relay switch circuits receive the battery pack selection signals and control turning on/turning off of relays switches therein, and further switch the battery packs in the on state, to make only one battery pack in the on state at the same time.
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公开(公告)号：US20210151993A1
公开(公告)日：2021-05-20
申请号：US17099526
申请日：2020-11-16
摘要： The invention provides a power tool, which comprises a motor, at least two battery packs supplying power to the motor and arranged in parallel. The power tool also comprises a relay control circuit used for connecting the motor and the battery packs, and the relay control circuit is provided with a controller, and a plurality of relay switch circuits connected with the controller. The controller is used for detecting the electric energy and/or an user state of battery packs and generates battery pack selection signals, the relay switch circuits and the battery packs are arranged one-to-one, the relay switch circuits receive the battery pack selection signals and control turning on/turning off of relays switches therein, and further switch the battery packs in the on state, to make only one battery pack in the on state at the same time.
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公开(公告)号：US11957073B2
公开(公告)日：2024-04-16
申请号：US17090860
申请日：2020-11-05
发明人： Feng Jiang , Wen Tao
IPC分类号： A01D34/68 , A01D34/69 , B62D51/04 , A01D101/00
CPC分类号： A01D34/6806 , A01D34/69 , B62D51/04 , A01D2034/6843 , A01D2101/00
摘要： 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.
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