Roadway air door

Abstract

The invention discloses a roadway air door. The roadway air door comprises a door frame, an anchoring and pulling device, a sealing component and a door leaf, wherein a pressure avoiding space is reserved between the door frame and a roadway wall where the door frame is installed, and a plurality of lifting hole sets are distributed in the face, opposite to the roadway wall, of the door frame; theanchoring and pulling device is anchored to the position, aligned with the lifting hole sets, of the roadway wall, pull rods aligned with lifting holes in the lifting hole sets are arranged at the end, facing the lifting hole sets, of the anchoring and pulling device, and the pull rods are reversely restrained and locked after penetrating through the lifting holes so as to be in the state of lifting and pulling the door frame; the degree of freedom of the pull rods is reserved in the direction of penetrating through the lifting holes from the anchoring and pulling device side, or forward restraint is formed through a component or structure with given strength; the sealing component seals the pressure avoiding space in the roadway direction; and the door leaf is installed on the door frame. According to the roadway air door, when the deformation of a roadway is within a preset range, the influence on opening and closing of the air door can be effectively reduced.

Description

technical field [0001] The invention relates to a roadway damper. Background technique [0002] At present, in the process of mining thick coal seams with depths of 1,000 meters in my country, due to the soft quality of coal seams and high ground stress, faults are often encountered during roadway excavation, and groundwater is relatively developed. Under the adjustment of existing supports, roof separation and deformation often occur in roadways Large, the coal rock is severely bulging and deformed. As a result, the existing ventilation facilities are under severe pressure, the walls are cracked, the dampers are deformed, the closure is not tight or cannot be closed automatically, and the maintenance is very heavy. [0003] The damper is an important structure in the mine ventilation system. The damper is used to cut off the wind flow, create conditions for the on-demand distribution of the mine wind flow, and at the same time provide convenience for pedestrians and transpo...

AI Technical Summary

Problems solved by technology

The inventor believes that buffering can only alleviate the effect of rigidity, but cannot eliminate the influence of the deformation of the roadway on the opening of the damper within a certain limit

In particular, simply using buffer components to install the air door, because relatively accurate positioning cannot be produced, the reliability of the installation is relatively poor

Images