Concrete mixing-and-transport truck with a rotary sealed feed-in/feed-out port of mixing drum
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United States of America Patent
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Oct 20, 2015
Grant Date -
Jul 18, 2013
app pub date -
Oct 21, 2011
filing date -
Oct 30, 2010
priority date (Note) -
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Abstract
A concrete mixing-and-transport truck is provided, which comprises a stirring cylinder with a rotary sealed feeding/discharging opening. A annularity sealed cavity is formed between the outer wall of a rotary inner cylinder (15), the inner wall of a fixed outer cylinder (6-2), the back end face of a rotary flange support base (6-1) and the front end face of a sealing end cover (7). At least one sealing belt (13) is set in the annularity rotary sealed cavity. The back end face of the last end sealing belt (13) is contacted tightly with the front end face of the sealing end cover (7). The stirring cylinder and the feeding/discharging opening are connected rotationally by reliable rotary sealing so as to make the stirring cylinder keep rotating when feeding, and reduce the center of gravity of the carrier vehicle. The truck improves driving safety, eliminates concrete de-mixing problem and improves the quality of concrete and architecture quality.
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