Pocket-type subway station piston air duct mechanism

By setting up a three-dimensional pocket-shaped civil engineering section inside the piston air duct, with openings on different surfaces, the problem of wasted underground space caused by excessively wide internal partition walls in existing technologies is solved, thus achieving full utilization of piston air duct space and saving investment.

CN224365037UActive Publication Date: 2026-06-16青岛市地铁规划设计院有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛市地铁规划设计院有限公司
Filing Date
2025-08-11
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In existing piston duct structures, the excessive width of the inner partition walls leads to wasted underground space and increased civil engineering investment.

Method used

The use of pocket-shaped civil engineering sections involves setting up three-dimensional pocket-shaped civil engineering sections on the partition walls, with openings on different sides for pressure relief, pressure replenishment, and smoke exhaust, thereby reducing the area of ​​the partition walls and making full use of the space.

Benefits of technology

It effectively reduces the area of ​​the partition wall, lowers the investment and cost of subway construction, and meets the needs of pressure relief, pressure replenishment and smoke exhaust.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224365037U_ABST
    Figure CN224365037U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of subway station air duct, especially a pocket type subway station piston air duct mechanism. Including piston air duct and partition wall, wherein, the partition wall is equipped with pocket type civil engineering part, and the partition wall that sets up pocket type civil engineering part is equipped with fourth hole mouth, and pocket type civil engineering part is located in piston air duct, pocket type civil engineering part is the three -dimensional shape, and the side of its towards fan is equipped with sixth hole mouth, and the communication between pocket type civil engineering part and fan is realized through sixth hole mouth, other side is equipped with fifth hole mouth, and the communication between pocket type civil engineering part and piston air duct is realized through fifth hole mouth. Its fusion pressure relief and pressure compensation and smoke exhaust function, make full use of piston air duct space, compress piston air duct scale, thereby realize the purpose of saving investment.
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