1. The retraction function of the exhibition box means that when pedestrians encounter danger when passing through the entrance, the exhibition box retracts toward the center of the revolving door to expand the distance between the exhibition box and the column, thereby creating a larger space to protect pedestrians from being trapped. This door retains the original appearance and structure of the traditional revolving door, but only upgrades the safety function.
Second, the main technical indicators of the retraction of the exhibition box:
1. Mechanically, it breaks the structure of the traditional two-wing automatic revolving door hoisting the exhibition box at a fixed point without sliding. Through the measurement and calculation of the center of gravity, the hoisting position and key points of the exhibition box are determined, and the box-type linear bearing, the guide shaft and the guide shaft seat are used to cooperate with each other. The structure of the exhibition box can realize the overall sliding of the exhibition box, and ensure that the overall structure of the exhibition box can always remain stable during the start and stop of the retraction function. From the mechanical structure, it breaks through the structural safety hazards that have existed since the birth of traditional revolving doors.
2. Control system
A. The realization of the retraction function of the exhibition box. This function is an extended function based on the function of the traditional revolving door. If this function can be turned off, it will be exactly the same as all the functions of the traditional revolving door. When the revolving door is officially activated, the touch screen will give an alarm to remind whether this function is turned on.
B. The trigger mode of the retraction function of the showcase: the realization of "non-contact active trigger" and "squeeze passive trigger". In normal use, the trigger mode of safety protection can be selected according to different installation sites!
C. Setting and identification of the trigger area for the retraction function of the showcase, the trigger zone is now defined as: the front stile of the showcase is within 500mm from the entrance column. No other zone operation will trigger this function.
D. The realization of the trigger reset mode of the retraction function of the exhibition box, there are two modes: one is that the system automatically recovers and resets after 3 seconds; the other is manual reset from the touch screen. During the reset process, it has the function of rebounding in case of resistance to prevent secondary injury to pedestrians. Pressing the emergency stop button can stop the reset in any state.