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公开(公告)号：US20240351182A1
公开(公告)日：2024-10-24
申请号：US18762035
申请日：2024-07-02
发明人： Zhongquan Xu , Huaguo Zhu , Keqiong Zhong , Mingshun E , Haoyu Wang , Jianye Zhao , Yang Li
CPC分类号： B25F5/02 , A01G3/0335 , A01G3/037 , A01G3/086 , A01G3/053
摘要： A handheld power tool includes a motor, a handle having a first switch for starting and stopping the motor, an output assembly, and an adjustment device including a telescopic rod assembly. The length of the adjustment device changes so that the handheld power tool has at least first and second working states. The distance between the frontmost side of the handheld power tool and the rearmost side of the first switch is an effective length of the handheld power tool. When the handheld power tool is in the first working state, the handheld power tool has a first effective length T1. When the handheld power tool is in the second working state, the handheld power tool has a second effective length T2. The first effective length T1 is less than or equal to 1 m, and the second effective length T2 is greater than the first effective length T1.
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公开(公告)号：US20240116208A1
公开(公告)日：2024-04-11
申请号：US18451678
申请日：2023-08-17
发明人： Zhen Xu , Kai Hu , Huaishu Wang , Junya Duan , Huaguo Zhu , Minggui Xiao
CPC分类号： B27G19/003 , B27B17/083
摘要： A chainsaw includes a chain, a liquid pump assembly, a motor, and a controller. The chain is used for implementing a cutting operation. The liquid pump assembly includes a liquid pump and a motor. The liquid pump is used for releasing a liquid for lubricating or cooling the chain. The motor is used for at least driving the liquid pump to operate. The controller is electrically connected to at least the motor. The controller is configured to, when the liquid pump is in the jammed state, control the liquid pump assembly to enter a throttling mode in which a supplied amount of the liquid is reduced, and when the liquid pump exits the jammed state, control the liquid pump assembly to exit the throttling mode. Technical solutions provided by the present application can determine and release the jammed state of the chainsaw.
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公开(公告)号：US20240075648A1
公开(公告)日：2024-03-07
申请号：US18449545
申请日：2023-08-14
发明人： Huaguo Zhu , Minggui Xiao , Lai Liu
CPC分类号： B27B17/12 , B27B17/08 , B27B17/0083
摘要： A power tool includes an output assembly, a first motor, a housing, and a liquid pump assembly, where the output assembly implements an operation, the first motor is used for driving the output assembly to operate, the housing is formed with a grip for a user to hold, the liquid pump assembly includes a liquid pump and a second motor for driving the liquid pump to operate, the liquid pump assembly is at least partially disposed within the grip, and a total length of the power tool is greater than or equal to 20 cm and less than or equal to 150 cm.
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