Timing cover, engine and vehicle

The utility model relates to a timing cover cap which comprises a first part, a second part and a third part, the first part comprises a wavy oblique groove, a first fixing point and an arc-shaped ribarranged on the opposite side of the wavy oblique groove, and the first fixing point is connected with the arc-shaped rib; the second part comprises a boss and a fork-shaped rib arranged on the opposite side of the boss; the third part comprises an annular rib, a radiation rib penetrating through the annular rib and a second fixing point, and the second fixing point is connected with the fork-shaped rib and the annular rib; when the timing cover is mounted on the engine, the first portion covers the variable valve timing mechanism, the second portion covers the tensioner, and the third portion covers the crankshaft hole. The utility model further relates to an engine and a vehicle which are prepared from the timing cover. The timing cover cap is divided into the first part, the second part and the third part acco