无压风门

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无压风门采用压力�q����原理�Q�通过四连杆机构及固定在门框上的限位装�|�实��C��扇风门异向同步开闭，风门关闭后��两扇风门边的挡风皮子严密接触�Q�具有良好的防漏风效果。由于作用在风门上的矿井负压通过�q? 杆机构�{化�ؓ一�U�内力�ƈ得到�q�����Q�风门开兛_��的大���取决于重锤的重量（重锤重量一般在10kg�?5kg之间�Q�从而保证了风门打开时省力、方�? 灉|��。如�?所�C�，�׃��两扇风门的面�U�大���近似相�{�，则作用在两扇风门上的矿井负压也大���相�{�，即F1≈F2�Q�调整连杆机构是两扇风门紧密接触�Q�风门处于关闭状态，则作用于单扇上正反力矩相�{��?/p> Non pressure air door using the pressure balance principle, the four connecting rod mechanism and fixed on the door frame limiting device to realize the two air doors anisotropic synchronous opening and closing, close the throttle after the two fan door close contact with the skin, anti leakage effect is good. Due to the negative pressure in the air through the connecting rod mechanism into a kind of internal force and get the balance, door switch force depends on the size of the weight of the heavy hammer (hammer weight is generally 10kg ~ 25kg) so as to ensure the door open labor-saving, convenient and flexible.