Roadway safety protection support

Abstract

The invention relates to a roadway safety protection support, comprising a cross beam and two supporting legs which are used for supporting the left end and the right end of the cross beam respectively and are independently adjustable in height. The cross beam is fixedly connected with the supporting legs; a vault plate assembly is mounted on the cross beam; each supporting leg comprises a base, astand column, a fixed box and a first limiting column, the stand column is vertically and fixedly installed on the base, the stand column is upwards inserted into the fixed box and is in up-down sliding connection with the fixed box, a plurality of first limiting holes are vertically formed in the upper portion of the stand column at intervals, in the installation state, and the first limiting column penetrates through one side wall of the fixed box and is inserted into one first limiting hole to achieve relative fixation of the stand column and the fixed box; and the supporting legs are fixedly connected with the left end and the right end of the cross beam through the fixed box. The roadway safety protection support can adapt to the installation environment with the uneven ground in a mine and cannot collapse due to the uneven ground.

Description

technical field [0001] The invention relates to a coal mining support, in particular to a roadway support, which belongs to the technical field of coal mining safety protection. Background technique [0002] Coal mining is the separation of valuable coal from the ground or surface and transported away from the site. Coal deposits occur in layers, with wide distribution and large reserves. The coal is brittle and easy to cut and break. Mining is often accompanied by threats of disasters such as water, fire and gas. Compared with mining other mineral deposits, coal mining technology has some differences. features. There are two types of mining methods: open-pit mining and underground mining. Mechanized methods are usually used, and a few of them are hydraulic coal mining. [0003] The support is needed as a safety protection support during coal mining. Existing support for mines is a component that bears mine pressure in a mine, and consists of a top beam and a column leg, ...

AI Technical Summary

Problems solved by technology

[0004] Although the existing coal mining support can be fixed to carry coal mining equipment, there are still certain defects in the process of use. For example, when the ground in the mine is uneven, there is a risk of the coal mining support collapsing due to insufficient fixation. Therefore, local The area may not be able to use the existing supports, or it is ...

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