公开(公告)号：US20220025688A1

公开(公告)日：2022-01-27

申请号：US17291780

申请日：2019-12-08

Applicant: Guangdong Jusen Hardware Precision Manufacturing Co., Ltd.

Inventor： Qi Zhi ,  Li Shanxiong

IPC: E05F1/10 ,  E05F5/02

Abstract: This invention discloses a door opener, comprising a shell consisting of an upper cover plate (1) and a lower cover plate (2). The key is that a pushing device for pushing the door to rotate is provided in the shell. An end of a driving device, which has one or more springs, can drive, via a rotating member (3), the pushing device to rotate. A locking/releasing device, which cooperates with the driving device, is provided at the other end of the driving device. The structure of this invention is unique. It allows the door to be conveniently opened and will not cause any possible harm to the users.

公开(公告)号：US11719032B2

公开(公告)日：2023-08-08

申请号：US17291780

申请日：2019-12-08

Applicant: Guangdong Jusen Hardware Precision Manufacturing Co., Ltd.

Inventor： Qi Zhi ,  Li Shanxiong

IPC: E05F3/00 ,  E05F1/10 ,  E05F5/02

CPC classification number: E05F1/105 ,  E05F5/02 ,  E05Y2201/224 ,  E05Y2201/47 ,  E05Y2900/20

Abstract: This invention discloses a door opener, comprising a shell consisting of an upper cover plate (1) and a lower cover plate (2). The key is that a pushing device for pushing the door to rotate is provided in the shell. An end of a driving device, which has one or more springs, can drive, via a rotating member (3), the pushing device to rotate. A locking/releasing device, which cooperates with the driving device, is provided at the other end of the driving device. The structure of this invention is unique. It allows the door to be conveniently opened and will not cause any possible harm to the users.