According to news from the financial industry on November 18, 2024, information from the State Intellectual Property Office shows that Lanzhou Chuangjinze Automatic Door Technology Development Co., Ltd. has obtained a project called \”A safety anti-pinch folding product for revolving doors\” The patent for \”Door Connection Structure\”, the authorization announcement number is CN 222009996 U, and the application date is February 2024.
The patent abstract shows that the utility model discloses a safety anti-pinch folding door connection structure for revolving doors, which relates to the technical field of revolving doors. It includes a telescopic device, a connecting rod, a first connecting piece, a second connecting piece, a bearing seat, a first shaft, a second shaft, and a third shaft. The top of the folding door leaf is fixedly connected to the bottom of the second shaft, and the second shaft extends from bottom to top. passes through the second connecting piece, the bearing seat, and the connecting rod. The bearing seat is provided with a bearing, and the second shaft is rotatably connected to the second connecting rod. and the bearing seat, the second connecting piece is fixedly connected to the riser, and the second shaft is fixedly connected to one end of the connecting rod; the other end of the connecting rod is rotationally connected to the piston rod of the telescopic device through the first shaft; the first connecting piece passes through the third shaft The bottom of the folding door leaf is rotatably connected, and the first connecting piece is also fixedly connected to the bottom of the rotating door leaf. The utility model uses a first connecting piece and a second connecting piece to rotationally connect the rotatable folding door leaf and the revolving door leaf, which can avoid pinching incidents and improve the safety of the revolving door.
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