Fig. 2 | Scientific Reports

Fig. 2

From: Experimental and numerical research on crowd squeezing pressure of platform screen doors of rail transit

Fig. 2

Structural schematic diagram of the crowd squeezing loading system. 1- airbag, 2-platform screen door, 3- upper crossbeam, 4- airbag groove, 5-lower crossbeam, 6-upright pole, 7- inspection components, 8- control structure, 9- main electric power supply fuse, 10- air switch, 11- airbag intake pipe, 12- airbag exhaust pipe, 13-sampling tube, 14- air compressor outlet pipe, 15-air compressor, 16- first conversion switch, 17- DC power supply, 18- pressure sensor, 19-pressure regulating valve, 20- pressure gage, 21- pressure solenoid valve, 22- pressure relief solenoid valve, 23-second conversion switch.

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