Drainage cover structure with rodent and mosquito prevention functions

Abstract

This invention relates to a ditch cover structure with rodent and mosquito-proof functions. It mainly consists of a plate with a placement edge, a recessed rim, multiple drainage holes, and a notch. A lever plate, larger than the notch area, is pivotally connected below the notch to completely cover it. One side of the lever plate is pivotally connected to the plate, while the other side extends to a counterweight. The counterweight lifts the lever plate, causing it to close the notch. When it rains, rainwater drains into the ditch through the drainage holes. Heavy rainfall forces the weight of the rainwater on the lever plate to exceed the counterweight's balance, causing the lever plate to sink and open the notch, allowing rainwater to drain smoothly into the ditch. When rainfall decreases, the counterweight sinks again, closing the lever plate to seal the notch, thus preventing rats, cockroaches, and mosquitoes from escaping the ditch and effectively achieving pest control.

Claims

1. A drainage ditch cover structure with rodent and mosquito prevention functions, mainly comprising a plate body, the area of ​​which is similar to the area of ​​the drainage ditch frame edge, and a notch on the plate body, characterized in that: the plate body has a placement edge portion on its outer edge, and a recessed annular edge on the inner side of the placement edge portion; a pivot body is provided on one side below the notch, the pivot body being fixed to the plate body and at a certain distance from the notch; the pivot body is U-shaped, and a pivot seat and a pivot hole are provided on its upper part; a connecting piece is pivotally connected to the plate body's pivot body. On the seat, the middle section of the connecting piece is provided with a pivot part, a toggle plate on one side and a counterweight element on the other side. The counterweight element is mainly used to control the toggle plate to fit against the bottom of the notch and to open. The plate and the toggle plate are provided with several drainage holes, and the toggle plate covers the notch of the plate to prevent rats and cockroaches from crawling out. When there is a lot of rain, the toggle plate opens and completely detaches from the notch, and the rainwater will flow into the ditch along the notch and drainage holes of the plate and the toggle plate to prevent water accumulation.

2. As in Request 1, the drain cover structure with rodent and mosquito prevention functions, wherein the counterweight element is adjustable and can be set by the user to open the lever to drain water only according to the amount of rainfall.

3. The drain cover structure with rodent and mosquito prevention functions as described in claim 1, wherein the panel can be made of metal or non-metal materials.

4. The drain cover structure with rodent and mosquito prevention functions as described in claim 1, wherein the end face of the pivot portion on the connecting piece is a flat and smooth surface, so that it can slide easily on the pivot seat.

5. The drain cover structure with rodent and mosquito prevention functions as described in claim 1, wherein the upper and lower concave annular edges of the plate are in a push-pull shape.

Images