Self-moving tunnel support canopy
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United States of America Patent
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Mar 22, 2016
Grant Date -
Mar 26, 2015
app pub date -
Jun 26, 2012
filing date -
Apr 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A self-moving tunnel support canopy includes front arch frame, rear arch frame, forward jack, and support jack disposed under the front arch frame. The front arch frame has front arch beams and front longitudinal beams longitudinally disposed along arch upper surfaces of front arch beams and coupled to all the front arch beams. The rear arch frame has rear arch beams and rear longitudinal beams longitudinally disposed along arch upper surfaces of the rear arch beams and coupled to all the rear arch beams. The front longitudinal beams and the rear arch beams are spacedly disposed, and a spacing is configured between the front arch beam and a front-adjacent rear arch beam. One end is coupled to the front arch frame, and the other end of the forward jack is coupled to the rear arch frame. The front arch beam and the rear arch beam are both arch-shaped beams.
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