Air oxygen content measuring and calculating device for underground coal mine
A technology for air oxygen content and coal mines, which is used in measurement devices, analysis of gas mixtures, structural details of gas analyzers, etc. Longevity and the effect of improving the efficiency of use
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] see Figure 1-6 , the present invention provides a technical solution: a coal mine underground air oxygen content measurement device, including a base 1, a handle 2, a housing tank 3, a first spring 4, a connecting block 5, a protective block 6, a fixed block 7. The first chute 8, the second spring 9, the first through hole 10, the second chute 11, the rotating block 12, the second through hole 13, the filter layer 14, the limit block 15, the third spri...
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