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公开(公告)号：US11370143B2
公开(公告)日：2022-06-28
申请号：US17106128
申请日：2020-11-29
发明人： Yuexun Cao , Lingao Zhang , Tao Wang
摘要： The present invention provides a chain saw, which includes a housing, a driving assembly mounted on the housing, a guide plate extending outward from the housing, a chain arranged on the guide plate and driven by the driving assembly, and a tension assembly for tightening the chain. The tension assembly includes an operating member and a driving member driven by the operating member, the driving member cooperates with the guide plate, and when a driving force is applied to the operating member, the driving member is driven and the guide plate is moved to tension the chain, and after the chain is tensioned, if the driving force is continuously applied to the operating member, the operating member disengages with the driving member, and the operating member continues to move to compress the guide plate.
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公开(公告)号：US11577423B2
公开(公告)日：2023-02-14
申请号：US17499866
申请日：2021-10-13
摘要： A reciprocating saw comprises a housing, a blade assembly, a reciprocating rod assembly, a driving assembly and an operation mechanism. The blade assembly extends forward from one side of the housing, and comprises a positioning structure. The reciprocating rod assembly is detachably connected with the blade assembly and comprises a blade fixing structure and an unlocking component matched with the positioning structures. The driving assembly is accommodated in the housing, and drives the reciprocating rod assembly to drive the blade assembly to perform reciprocating motion. The operation mechanism is installed on the housing and moves between a locking position and an unlocking position and comprises an operation button, a drive cam matched with the unlocking components and an elastic reset component for resetting the operation button.
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公开(公告)号：US20220127910A1
公开(公告)日：2022-04-28
申请号：US17506688
申请日：2021-10-21
发明人： Yuexun Cao , Naixin Gao , Lingao Zhang , Tao Wang , Fei Huang
摘要： The disclosure provides an electric drill comprising: a housing; a motor for driving the electric drill to work; an output assembly for outputting the power of the motor; a first brake assembly including a driving disc and a driven disc respectively arranged on the transmission shaft and the output shaft, the driving disc being meshed with the driven disc to transmit power in a non-braking state, and the driving disc and the driven disc being displaced in the axial direction to be separated from each other in a braking state to stop transmitting power; and a second brake assembly including a mass block and a micro switch connected with the motor, and in a braking state, the mass block displacing and triggering the micro switch to stop the motor.
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公开(公告)号：US20220097250A1
公开(公告)日：2022-03-31
申请号：US17460314
申请日：2021-08-30
发明人： Yuexun Cao , Yinan Guo , Tao Wang , Lingao Zhang
摘要： The disclosure provides a chain saw including a housing, a motor, a chain saw bar assembly, a tensioning assembly set on the housing, and an adjustment assembly set on the side cover corresponding to the tensioning assembly. The chain saw bar assembly is detachably connected to the first housing through the combination of the tensioning assembly and the elastic components, the adjustment assembly is movably connected with the tensioning assembly, and the adjustment assembly can adjust the relative position of the tensioning assembly and the guide shaft, to tension the chain set on the circumferential direction of the guide bar and tightly lock the chain saw bar assembly between the first housing and the side cover.
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公开(公告)号：US20220118645A1
公开(公告)日：2022-04-21
申请号：US17499866
申请日：2021-10-13
摘要： A reciprocating saw comprises a housing, a blade assembly, a reciprocating rod assembly, a driving assembly and an operation mechanism. The blade assembly extends forward from one side of the housing, and comprises a positioning structure. The reciprocating rod assembly is detachably connected with the blade assembly and comprises a blade fixing structure and an unlocking component matched with the positioning structures. The driving assembly is accommodated in the housing, and drives the reciprocating rod assembly to drive the blade assembly to perform reciprocating motion. The operation mechanism is installed on the housing and moves between a locking position and an unlocking position and comprises an operation button, a drive cam matched with the unlocking components and an elastic reset component for resetting the operation button.
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公开(公告)号：US20210162622A1
公开(公告)日：2021-06-03
申请号：US17106128
申请日：2020-11-29
发明人： Yuexun Cao , Lingao Zhang , Tao Wang
摘要： The present invention provides a chain saw, which includes a housing, a driving assembly mounted on the housing, a guide plate extending outward from the housing, a chain arranged on the guide plate and driven by the driving assembly, and a tension assembly for tightening the chain. The tension assembly includes an operating member and a driving member driven by the operating member, the driving member cooperates with the guide plate, and when a driving force is applied to the operating member, the driving member is driven and the guide plate is moved to tension the chain, and after the chain is tensioned, if the driving force is continuously applied to the operating member, the operating member disengages with the driving member, and the operating member continues to move to compress the guide plate.
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