Rail transit cleaning-type ventilation protective air-tight door
A rail transit and airtight door technology, which is applied in the directions of ventilation arrangement, sealing device, and war damage prevention, can solve the problems of high civil engineering cost, low impact strength, complex structure, etc., and achieve saving of civil engineering cost and high impact strength , the effect of simple operation
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[0025] Examples see figure 1 , figure 2 As shown, this rail transit clean type ventilating protective airtight door is located in the ventilation channel of the underground railway civil air defense project, and includes a steel door leaf 1, a steel door frame 2, a steel latch 3, a steel hinge 4 and a door leaf fixing device 9 ( Door leaf is in open state at ordinary times, and door leaf fixing device 9 withstands the ground, bears door leaf self-weight and fixes door leaf), and the lower angle steel of steel door frame 2 and the upper angle steel have lockhole, so that the insertion of the locking head in the locking.
[0026] A seal 5 is provided between the steel door leaf 1 and the steel door frame 2 . Specifically, a seal 5 fixed between the pressure-bearing plates is provided on one side of the junction of the steel door frame and the steel door leaf, and the seal 5 includes a rubber groove arranged on the steel door The sponge rubber strip in the strip groove, and th...
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