Waterproof cover for outdoor products

A waterproof cover for outdoor products comprising:

• a tarpaulin having a ceiling part made of flexible materials, wherein the center of the ceiling part is convex;
• a plurality of binding straps made of flexible materials and used for fastening to outdoor products, wherein one end of each binding strap fastened to the edge of the ceiling part of the tarpaulin;
• a tensioning assembly, wherein the tensioning assembly is composed of flexible materials, the edge of the tensioning assembly is fastened to the edge of the inner surface of the ceiling part, and the tensioning assembly is tensioned when the binding straps are respectively tied to an outdoor product;
• a support column assembly, wherein the top end of the support column assembly is fastened to the inner surface of the center of the ceiling part, the bottom end of the support column assembly is fastened to the center of the tensioning assembly, and the support column assembly jacks up the center of the ceiling part under the action of the tensioning assembly and makes the ceiling part form a tensioned slope above the outdoor product when the tensioning assembly is in a tensioning state.