A drainage device for improving the safety of roads prone to accumulation of water
A drainage device and safety technology, which is applied in the field of road transportation equipment, can solve the problems of drainage manhole cover drainage groove blockage, easy to overturn, pedestrians cannot determine the position of the manhole cover, etc., and achieve the effect of increasing the water flow rate and improving the drainage rate
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[0024] Combine below Figure 1-5 The present invention is described in detail, wherein, for the convenience of description, the orientations mentioned below are now defined as follows: figure 1 The projection relationship of itself is the same as the up, down, left, right, front, and rear directions.
[0025] A drainage device for improving the safety of roads prone to water accumulation described in conjunction with Figures 1-5 includes a manhole cover top plate 11 and an installation extension tube 12. The manhole cover top plate 11 is fixedly installed with an inclined drainage device 20. The said The inclined drainage device 20 includes an installation cylinder 30 , a connecting ring 31 is fixedly installed on the inner wall of the installation cylinder 30 , a rotating connecting piece 32 is fixedly installed in an annular array on the inner side of the connecting ring 31 , and a drainage mesh plate is rotatably installed on the rotating connecting piece 32 33. The draina...
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