Coal mining ventilation equipment

Abstract

The invention relates to the technical field of coal mining, and in particular to coal mining ventilation equipment. The coal mining ventilation equipment comprises a ventilation box. A cavity is formed in the ventilation box. Multiple groups of ventilation pipes are arranged at the front end of the ventilation box. Fixing plates are arranged on the left side and the right side of the ventilationbox. Clamping devices are arranged in four corner areas of the ventilation box. Each clamping device comprises a hanging plate and a jacking shaft. Each hanging plate is fixedly connected with the opposite end of the ventilation box. The rear end of each jacking shaft is inserted into the hanging plate from the front end of the corresponding hanging plate. Clamping grooves corresponding to the hanging plates are formed in the front ends of the fixing plates. Sliding holes are formed in the top ends and the bottom ends of the hanging plates. A triggering shaft is connected into each sliding hole in an up-down sliding mode. A sliding plate is fixedly connected to the end, close to the jacking shaft, of each triggering shaft. A limiting block is fixedly connected to the end, away from the jacking shaft, of each triggering shaft. A spring sleeves the circumferential outer wall of each triggering shaft. According to the coal mining ventilation equipment, the situation that people are injured by crashing is reduced, the occupied space is small, use is convenient for users, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a coal mining ventilation device. Background technique [0002] In the process of coal mining, due to the closed environment of underground coal mining, the ventilation will be poor. It is necessary to install ventilation equipment to ensure the air circulation in the mine, so as to ensure the safety of the mine workers and the comfort of the working environment. [0003] Existing patent CN211598727U discloses a kind of coal mine ventilation pipe, and specifically discloses its connection mode, plays the effect of filtering and blocking through the pipe. However, there are at least the following problems in this prior art: 1, the pipeline in this prior art only serves as a guide to the outside air, and cannot be adjusted for the current air quality in the mine; 2, in large mines , the erection of the pipeline is relatively difficult and the cost is high; 3, it will hinder th...

AI Technical Summary

Problems solved by technology

However, there are at least the following problems in this prior art: 1, the pipeline in this prior art only serves as a guide to the outside air, and cannot be adjusted for the current air quality in the mine; 2, in large mines , the erection of the pipeline is more difficult and the cost is higher; 3, it will hinder the movement of goods during use, occupy a large space, is not convenient for users to use, and has low practicability

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