The invention relates to an emergency vent valve special for railway transportation shunting operation in the technical field of vent valves, which comprises a main valve body, an air inlet and an emergency exhaust outlet are formed in the main valve body, the air inlet is used for being communicated with a train pipe, an emergency cavity is formed in the main valve body, the air inlet is communicated with the emergency cavity through an air inlet channel, and the emergency exhaust outlet is communicated with the emergency cavity through an air outlet channel. The emergency exhaust outlet is communicated with the emergency cavity through the first exhaust channel, and a plugging assembly for controlling the first exhaust channel to be opened and closed is arranged in the emergency cavity; the plugging assembly comprises a valve plate, a reset spring and an exhaust hole which are matched with one another. Through the structural arrangement of the plugging assembly, high-pressure gas in a train pipe can enter the upper portion of the valve plate through the vent hole of the valve plate to be matched with the reset spring to achieve dual pressure on the valve plate, air leakage of the emergency air outlet is avoided, and the stability of the emergency vent valve is ensured; the whole structure is reasonable, the size is small, use is convenient, and emergency ventilation braking of the train is facilitated.
本发明涉及放风阀技术领域的一种铁路运输调车作业专用紧急放风阀,包括主阀体,主阀体上设有进风口及紧急排风口,所述进风口用于与列车管连通,所述主阀体内设有紧急腔,所述进风口通过进气通道与紧急腔连通,所述紧急排风口通过排气通道一与紧急腔连通,所述紧急腔内设有控制排气通道一开合的封堵组件;封堵组件包括互相配合的阀片、复位弹簧及排气孔。本发明封堵组件的结构设置可使列车管内的高压气体通过阀片的通气孔进入阀片上方配合复位弹簧对阀片实现双重的压力,避免紧急排风口漏风,确保了紧急放风阀的稳定性;整体结构合理,体积小,使用方便,有利于列车的紧急放风制动。
Emergency vent valve special for railway transportation shunting operation
一种铁路运输调车作业专用紧急放风阀
2024-09-20
Patent
Electronic Resource
Chinese
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