Drainage ditch cover structure with double-layer grating

Abstract

A drainage ditch cover structure with a double-layer grating is installed at the opening of the ditch body. It includes a supporting frame, an upper grating, a lower grating, and a support member. The inner side of the supporting frame forms support sections of different heights. The upper grating is positioned higher to provide walking support, while the lower grating is positioned lower and below the upper grating. The gaps between the upper and lower gratings are smaller to balance walking safety and drainage efficiency. The support member is located between the upper and lower gratings to enhance the load-bearing capacity of the upper grating. The upper grating can be lifted relative to the supporting frame, and the lower grating is detachable for easy cleaning and maintenance. This achieves the simultaneous effects of drainage, filtration, and passage support, improving the overall structural safety and practicality.

Claims

1. A drainage ditch cover structure with a double-layer grating, disposed at the opening of a ditch body, comprising: a supporting frame, an upper grating, a lower grating, and at least one support member; the supporting frame is disposed at the opening of the ditch body, and forms an upper support portion and a lower support portion below the upper support portion on its inner side; the upper grating is disposed on the upper support portion to provide a support surface for walking; the lower grating is disposed on the lower support portion and located below the upper grating; the support member is disposed between the upper grating and the lower grating to support the upper grating; and the upper grating is operable relative to the supporting frame.

2. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The upper grille is pivotally connected to the supporting frame.

3. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The support component is a support rod, a support column, or a combination thereof.

4. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The support member is located in the central area of ​​the upper grille.

5. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The lower grid system is detachably installed on the supporting frame.

6. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The upper support portion and the lower support portion form a first-order differential structure.

7. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The load-bearing frame is made of cement, metal, or a combination thereof.

8. The drainage ditch cover structure with double-layer grating as described in claim 1, wherein, The upper grid is composed of several grid bars, which form at least one gap between the upper grids; the lower grid is also composed of several grid bars, which form at least one gap between the lower grids; the gap between the upper grids is smaller, and the gap between the lower grids is larger.

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