公开(公告)号：US20220289263A1

公开(公告)日：2022-09-15

申请号：US17774938

申请日：2019-11-08

Applicant: Techtronic Cordless GP

Inventor： Wei Wei An ,  Da Zheng Li

IPC: B62B5/00 ,  B62B5/04

Abstract: An electric handcart, comprising: a main body (1), a power supply device (9) mounted on the main body (1), a power device, and a control device. The power supply device (9) and the control device are separately connected to the power device.

公开(公告)号：US11766792B2

公开(公告)日：2023-09-26

申请号：US17469378

申请日：2021-09-08

Applicant: TECHTRONIC CORDLESS GP

Inventor： Gong Meng Shu ,  Da Zheng Li

IPC: B26B15/00 ,  B26B13/04 ,  B26B13/28

CPC classification number: B26B15/00 ,  B26B13/04 ,  B26B13/28

Abstract: A blade replacement apparatus of an electric instrument is provided. The blade replacement apparatus includes a nut, a nut loosening/tightening member, a locking member, and an operating member. One of the nut loosening/tightening member and the operating member has a first matching portion, the locking member having a second matching portion. The operating member is movable between an operating position and a non-operating position. When the operating member is in the non-operating position, the first matching portion engages with the second matching portion, and the rotation of the nut loosening/tightening member is obstructed by the locking member. When the operating member is in the operating position, the first matching portion is disengaged from the second matching portion, and the rotation of the nut loosening/tightening member tightens or loosens the nut.

公开(公告)号：US20230411586A1

公开(公告)日：2023-12-21

申请号：US18229946

申请日：2023-08-03

Applicant: Techtronic Cordless GP

Inventor： Gong Meng Shu ,  Da Zheng Li

IPC: H01M4/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/36

CPC classification number: H01M4/0435 ,  H01M4/623 ,  H01M4/366 ,  H01M4/0404 ,  H01M10/0525

Abstract: Disclosed is a blade replacement apparatus of an electric instrument, which is used to replace blades connected by a bolt, the bolt extending along a first axis, the blade replacement apparatus comprising a nut that fits the bolt to fix the blade, a nut loosening/tightening member, a locking member, and an operating member, one of the nut loosening/tightening member and the operating member having a first matching portion, the locking member having a second matching portion, wherein the operating member is movable between an operating position and a non-operating position, the operating member allowing a user to perform an operation by hand without using any instruments; when the operating member is in the non-operating position, the first matching portion engages with the second matching portion, and the rotation of the nut loosening/tightening member around the first axis is obstructed by the locking member; when the operating member is in the operating position, the first matching portion is disengaged from the second matching portion, and the rotation of the nut loosening/tightening member around the first axis tightens or loosens the nut.

公开(公告)号：US20220274635A1

公开(公告)日：2022-09-01

申请号：US17776387

申请日：2019-11-13

Applicant: Techtronic Cordless GP

Inventor： Sheng Rong Zhang ,  Da Zheng Li ,  Kwok Fan Lam

IPC: B62B5/00 ,  B62B1/18 ,  B62B5/04

Abstract: An electric wheelbarrow comprises a main body portion (1), a power supply device (2) installed at the main body portion (1), a power device and a control device. The power supply device (2) and the control device are respectively connected to the power device. The main body portion (1) comprises a tray (11), a main body frame (12) bearing the tray (11), and a wheel (13) installed at the main body frame (12). The power device comprises a drive device (3), a transmission device (4) and a brake device (5).

公开(公告)号：US12202155B2

公开(公告)日：2025-01-21

申请号：US18229946

申请日：2023-08-03

Applicant: Techtronic Cordless GP

Inventor： Gong Meng Shu ,  Da Zheng Li

IPC: B26B15/00 ,  B26B13/04 ,  B26B13/28 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

Abstract: A blade replacement apparatus is disclosed, including a nut loosening/tightening member, a locking member, and an operating member, wherein one of the nut loosening/tightening member and the operating member is provided with a first matching portion, and the locking member is provided with a second matching portion. The operating member is movable between an operating position and a non-operating position. When the operating member is in the non-operating position, the first matching portion engages with the second matching portion. The locking member and the operating member are rotatable to one another. Rotation of the nut loosening/tightening member around a first axis is obstructed by the locking member. When the operating member is in the operating position, the first matching portion is disengaged from the second matching portion, and rotation of the nut loosening/tightening member around the first axis tightens or loosens the nut.

公开(公告)号：US12122441B2

公开(公告)日：2024-10-22

申请号：US17774938

申请日：2019-11-08

Applicant: Techtronic Cordless GP

Inventor： Wei Wei An ,  Da Zheng Li

IPC: B62B5/00 ,  B62B5/04

CPC classification number: B62B5/0066 ,  B62B5/0053 ,  B62B5/0069 ,  B62B5/0438

Abstract: An electric handcart, comprising: a main body (1), a power supply device (9) mounted on the main body (1), a power device, and a control device. The power supply device (9) and the control device are separately connected to the power device.