Ventilation device for preventing gas overrun in coal mine

CN224432596UActive Publication Date: 2026-06-30李浩楠

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: 李浩楠
Filing Date: 2025-06-09
Publication Date: 2026-06-30

AI Technical Summary

Technical Problem

Existing ventilation devices for coal mines with excessive gas levels are not easy to disassemble and replace with dust screens. Over time, the dust screens are prone to clogging, leading to reduced ventilation efficiency.

Method used

A device comprising a support base, a dustproof component, a connecting component, and a ventilation component is designed. The dustproof net is easily disassembled and replaced by a tie rod and dustproof bolts. The dustproof component includes a dustproof frame, a dustproof net, a mounting plate, and dustproof bolts. The connecting component includes a connecting plate, connecting bolts, and a flexible hose. The ventilation component includes an exhaust fan, a connecting shaft, and a scraper, enabling quick replacement and cleaning of the dustproof net.

Benefits of technology

It enables convenient disassembly and replacement of dust screens, avoids dust screen blockage, and improves ventilation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of coal mine ventilation devices, specifically to a ventilation device for preventing coal mine gas exceedances. It includes a support base, a dustproof component, a connecting component, and a ventilation component. The dustproof component includes a dustproof frame, a dustproof net, a mounting plate, dustproof bolts, and a tie rod. The dustproof frame is slidably connected to the support base and located inside the support base. The dustproof net is fixedly connected to the dustproof frame and located inside the dustproof frame. The mounting plate is fixedly connected to the dustproof frame and located outside the dustproof frame. Multiple dustproof bolts are threadedly connected to the support base and pass through the mounting plate. The tie rod is fixedly connected to the mounting plate and located outside the mounting plate. The connecting component and the ventilation component are connected to the support base. This invention solves the problem that, during use, the dustproof net is inconvenient to disassemble and replace, and the dustproof net is prone to blockage after prolonged use, leading to reduced ventilation efficiency.

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