公开(公告)号：US20140304942A1

公开(公告)日：2014-10-16

申请号：US14208188

申请日：2014-03-13

Applicant: Oubao Security Technology Co., Ltd.

Inventor： Haojie LI ,  Zhenfeng FU ,  Guowei JIANG ,  Zhenbo WU ,  Hongbo LIU ,  Weibin LAN ,  Chenxi ZHU ,  Jun ZHANG ,  Maochen ZHANG

IPC: E05F1/08

CPC classification number: E05F15/614 ,  E05F15/603 ,  E05F15/63 ,  E05Y2201/636 ,  Y10T16/293 ,  Y10T16/299 ,  Y10T16/56 ,  Y10T16/577 ,  Y10T16/585

Abstract: A concealed door closer includes a housing, an input shaft and an output shaft, the input shaft being connected to a motor, wherein a joining member is arranged between the input shaft and the output shaft, and two ends of the joining member are respectively provided with an upper connection piece and a lower connection piece, which are connected to a roller via vertical rotation shaft, and wherein both the input shaft and the output shaft are provided with a left connection piece and a right connection piece, which are horizontally connected to the roller via a horizontal rotation shaft. The components in the door closer have a simple structure and may be easily processed and assembled. The size of the joint after assembly is equivalent to that of the joining member, so the overall size is small.

Abstract translation: 隐蔽的门关闭装置包括壳体，输入轴和输出轴，输入轴连接到电动机，其中，接合构件设置在输入轴和输出轴之间，并且分别设置接合构件的两端 具有通过竖直旋转轴连接到辊的上连接件和下连接件，并且其中输入轴和输出轴都设置有左连接件和右连接件，水平连接到 滚筒通过水平旋转轴。 门关闭器中的部件具有简单的结构，并且可以容易地加工和组装。 组装后的接头尺寸与接合部件的尺寸相同，因此整体尺寸小。

公开(公告)号：US20170306668A1

公开(公告)日：2017-10-26

申请号：US15531302

申请日：2016-12-08

Applicant: Oubao Security Technology Co., Ltd.

Inventor： Haojie LI ,  Guowei JIANG ,  Qiaojie LIAO ,  Lijun YE

IPC: E05C17/56 ,  E05F15/63 ,  E05C17/20

CPC classification number: E05C17/56 ,  E05C17/206 ,  E05F1/105 ,  E05F15/00 ,  E05F15/60 ,  E05F15/63 ,  E05F2015/631 ,  E05Y2201/462

Abstract: The present invention relates to the technical field of door closers, and particularly discloses an electromagnetic release door closer. The electromagnetic release door closer comprises a door closer body, a slide rail, and a rocker arm, one end of the rocker arm is articulated with the door closer body, wherein the slide rail is provided with a slide groove and a slide cavity which are parallel to each other, a through slot which is parallel to the slide groove is arranged between the slide groove and the slide cavity, wherein an electromagnetic limiting mechanism can be fixed at any position in the slide cavity. In the electrified state of an electromagnet, an electromagnetic attracting plate and the electromagnet are in a fixed state under the action of magnetic force, a limiting latch bolt is located in the slide groove, and is used to limit the sliding of a slider in the slide groove, and under this state, the slider can slide freely between the limiting latch bolt and one end of the slide groove, that is, a door leaf can move freely between a position limited by the limiting latch bolt and a maximum opening position. The defect that a door leaf can only be fixed in one specific state in the prior art is overcome, the range of adjustment is wider, and the electromagnetic release door closer is more convenient to use, and can meet more use requirements.