Adjustable support net rack capable of being kept attached to interior of tunnel for coal mining

Abstract

The invention discloses an adjustable supporting net rack capable of being kept attached to the interior of a tunnel for coal mining. The adjustable supporting net rack comprises a fixed base, rollingwheels, a protective net, an elastic rope, a magnetic block and an adjusting bolt, a through hole is formed in the fixed base, a supporting frame is fixedly connected to the upper portion of the fixed base, and guiding-out grooves are formed in the left side and the right side of the supporting frame correspondingly; and a limiting rod is fixedly arranged in the supporting frame, a supporting rodis movably installed on the outer side of the limiting rod, connecting plates are fixedly connected to the front side and the rear side of the lower portion of the supporting rod, a fixing rod is fixedly connected to the surface of the upper portion of the supporting rod, a rotating block is fixedly connected to the top of the supporting rod, and a top frame is movably arranged on the outer sideof the rotating block. According to the adjustable supporting net rack capable of being kept attached to the interior of the tunnel for coal mining, the overall height of the device can be conveniently adjusted, and meanwhile the protective net can be conveniently detached subsequently while the protective net is attached to the top of the device.

Description

technical field [0001] The invention relates to the technical field of coal mine mining, in particular to an adjustable support network frame for coal mine mining that can keep fit with the inside of a tunnel. Background technique [0002] Coal mine is an important mineral resource. Coal mine has a wide range of applications. It is often used in industrial fields and transportation fields. The fuel made from coal mines is used for heating and power generation. Coal mines are usually divided into open-pit mining and underground mining. Open-pit mining The coal mines mined are mainly for some coal mines that are relatively close to the surface. When mining coal mines underground, pits need to be excavated, and support equipment is needed to support the interior of the tunnel. [0003] Some coal mine development support equipment currently on the market: [0004] (1) The interior of the tunnel is usually supported by several wooden piles. Because the heights of the interior of...

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Problems solved by technology

[0008] The purpose of the present invention is to provide an adjustable support network frame for coal mine development that can be kept in contact with the inside of the tunnel, so as to solve the problem that some tunnel support for coal mine development in the market is not convenient for the overall installation of the device proposed by the above background technology. The height is adjusted, and it is inconvenient to attach the protective net to the inside of the tunnel, and it is also inconvenient to connect the various supports inside the device and adjust the oblique support, resulting in poor stability.

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