Underground portable bracket

Abstract

The invention discloses an underground portable bracket which comprises a main hollow housing. Air is used as a supporting medium, so the bracket is easy to use and cost-free, can be used without limitations, reduces the overall mass of a supporting device to a certain extent, and is convenient to carry. Moreover, the bracket has a thread structure adjustment supporting limit mechanism. By using the mobility of the thread structure, a supporting component can be supported again, so the support efficiency of the bracket is better. In addition, the thread support is not looped or deformed, thereby preventing slight variation caused by air cushioning. The bracket has strong practicality. Moreover, the bracket has an air one-way flow control mechanism capable of withstanding the influence of large air pressure, thereby ensuring the maximum bearing strength of the air support. In addition, the bracket has a one-way air compression mechanism, so that the bracket can compress the air to a specific part under the lever principle to achieve a supporting effect.

Description

Technical field [0001] The invention relates to the technical field of coal mining, in particular to a portable support for underground use. Background technique [0002] At present, in coal mining sites, support equipment is indispensable, and most of the existing heavy support equipment is supported by hydraulic oil, which has two major defects: First, the overall weight of the device is heavy due to the existence of hydraulic oil. , It is not convenient to move and carry. Second: When supporting, because the hydraulic oil has buffering properties, there will be slight height changes during supporting work, which has certain limitations. Summary of the invention [0003] The purpose of the present invention is to provide a portable support for underground use to solve the above-mentioned background art problems. [0004] In order to achieve the above objectives, the present invention provides the following technical solutions: a portable support for underground use, comprising a ...

AI Technical Summary

Problems solved by technology

[0002] At present, support equipment is indispensable in coal mining sites, and most of the existing heavy support equipment is supported by hydraulic oil, which has two major defects: one: due to the existence of hydraulic oil, the overall quality of the device is heavy , it is not convenient to move and carry. Second: when supporting, because the hydraulic oil has cushioning properties, there will be slight height changes when supporting the work, which has certain limitations.

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