Emergency escape hand-control device and emergency escape hand-control system for pneumatic-control bus door of bus
A manual control, air outlet technology, applied in vehicle parts, transportation and packaging, vehicle safety arrangements, etc., can solve the problems of unheard of driver's on-site guidance, the door cannot be opened smoothly, and the reliability is insufficient, so as to achieve low maintenance and use costs. , Simple structure, simple and convenient operation
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[0020] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:
[0021] Referring to the emergency escape manual control system for bus air-controlled doors shown in FIG. After the air inlet of one of the passenger manual control device 102 and the driver manual control device 103 is connected in series with the air outlet of the other, the remaining air inlets are connected to the first air outlet of the electronically controlled reversing valve 104, The remaining air outlet is connected to the first side of the piston of the cylinder 101; the second side of the piston of the cylinder 101 is connected to the second air outlet of the electronically controlled reversing valve 104; the air inlet of the electronically controlled reversing valve 104 is connected to the air Source 105 is connected. The cylinder 101, the electronically controlled reversing valve 104, and the air source 105 are the automatic door opening syst...
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