A method of making an anti-blocking rainwater grate
A rainwater grating and production method technology, applied in water supply devices, manufacturing tools, waterway systems, etc., can solve problems such as aging of drainage pipelines, accumulation of sundries in rainwater inlets, and poor management and use, so as to achieve smooth drainage and reduce accumulation. Effect
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[0021] see figure 1 and figure 2 , an anti-blocking rainwater grate, comprising a grid-shaped grate plate, the grate plate is formed by fastening and connecting the upper grid 1 and the lower grid 2, the upper drain hole 11 of the upper grid is connected to the lower grid The falling water holes 21 are staggered; the cross section of the ribs of the lower grille 2 is U-shaped, and there are at least two seepage holes 3 at the bottom of the groove; the frame and middle rib of the ribs of the upper grille 1 and the lower grille 2 are thicker , one of which is evenly distributed with grooves 5, and the other is correspondingly distributed with tenons 4, and the two are fastened together.
[0022] Specifically, the frame and the middle rib of the lower grid 2 are provided with pin holes, and the corresponding positions of the upper grid 1 are provided with pins; or the frame and the middle rib of the lower grid 2 are provided with pins, Corresponding positions of the upper grid...
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