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公开(公告)号：US11329437B2
公开(公告)日：2022-05-10
申请号：US16629974
申请日：2017-07-10
申请人： Feifan Hu
发明人： Feifan Hu
IPC分类号： H01R13/703 , H01R13/447 , H01R13/52 , H01R13/713 , H01R24/76
摘要： An insertion detection device for plug pins in a socket and a safety socket. A connecting rod trigger assembly of the insertion detection device forms a linkage structure with a first elastic conductive connector. When the connecting rod trigger assembly moves from the conduction section to the disconnection section, it can ensure that the first elastic conductive connector and the second conductive connector are disconnected. Even if the first elastic conductive connector is deformed due to prolonged insertion of plug, it can be separated from the second conductive connector by moving the connecting rod trigger assembly, and its internal circuit is always in disconnected state. At least three insertion detection devices of the safety socket correspond to two pins of live wire and neutral wire.
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公开(公告)号：US11998412B2
公开(公告)日：2024-06-04
申请号：US17432090
申请日：2019-06-19
申请人： Feifan Hu
发明人： Feifan Hu , Jiankun Hu
CPC分类号： A61C17/222 , A46B5/0095 , A46B9/04 , A46B13/02 , A61C17/221
摘要： Provided are a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a linking component and a locking cylinder; wherein a component assembly cavity is arranged at the tail end of the brush head body, the linking component is installed in the component assembly cavity, and a deformable locking cylinder including a fulcrum force-receiving part and a force applying part with elastic forces at both ends is embedded; the locking cylinder makes most of the strokes of the drive shaft in the insertion process smooth and convenient, only until the two force applying parts are both in contact with the drive shaft, will force be generated to lock the drive shaft, and the locking effect achieved by this elastic force can be maintained for a long time. Thus ensuring the capabilities of torque transmission and axial retention.
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公开(公告)号：US20220168082A1
公开(公告)日：2022-06-02
申请号：US17432090
申请日：2019-06-19
申请人： Feifan Hu
发明人： Feifan Hu , Jiankun Hu
摘要： Provided are a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a linking component and a locking cylinder; wherein a component assembly cavity is arranged at the tail end of the brush head body, the linking component is installed in the component assembly cavity, and a deformable locking cylinder including a fulcrum force-receiving part and a force applying part with elastic forces at both ends is embedded; the locking cylinder makes most of the strokes of the drive shaft in the insertion process smooth and convenient, only until the two force applying parts are both in contact with the drive shaft, will force be generated to lock the drive shaft, and the locking effect achieved by this elastic force can be maintained for a long time. Thus ensuring the capabilities of torque transmission and axial retention.
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公开(公告)号：US20210386535A1
公开(公告)日：2021-12-16
申请号：US17406060
申请日：2021-08-18
申请人： Feifan Hu
发明人： Feifan Hu , Jiankun Hu
摘要： Provided are an electric handle, an electric toothbrush and an electric cleaning brush. The electric handle comprises a housing, a rear cover, a swing motor and a main control structure. By installing a vibration control mass with limited mass, the rotational inertia of the stator of the swing motor is increased, so that the vibration amplitude of the shell of the swing motor is reduced. It also reduces the vibration amplitude transmitted to the control circuit board, battery and electric handle, decreases the vibration feeling in user's hand, and makes the output shaft of the swing motor transmit effective swing output as much as possible. Then the swing output is transmitted to the toothbrush head or cleaning brush head installed on the output shaft. In this way, the cleaning effect and vibration reduction effect are better, the hand feeling is more comfortable, and the production cost is also reduced.
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