Opening and closing cover assembly for opening portion of automobile body

An opening and closing cover assembly, mounted at an opening portion (101) on an automobile body (10), wherein the opening and closing cover assembly comprises a cover plate (30) configured for opening and closing the opening portion (101), a driving source (50), a guide member (70) driven by the driving source (50) to perform a reciprocating motion, a transmission sliding block (80), and a fixed guide rail (90) fixed to the automobile body (10);

• wherein the guide member (70) and the transmission sliding block (80) are fixed to each other, the transmission sliding block (80) is connected to the cover plate (30), a first sliding groove (921) and a second sliding groove (922) are formed within the fixed guide rail (90), the first sliding groove (921) is slidably fitted with the guide member (70), and the second sliding groove (922) is slidably fitted with the transmission sliding block (80);
• wherein, through the guide member (70) and the transmission sliding block (80), the driving source (50) is configured to drive the cover plate (30) to reciprocate between a closed position and a fully open position;
• when the cover plate (30) is in the closed position, the cover plate (30) covers the opening portion (101);
• when the cover plate (30) is in the fully open position, the cover plate (30) is inside the automobile body (10), and the opening portion (101) communicates the inside and the outside of the automobile body (10);
• wherein an active pin (34) and a passive pin (35) are disposed on an outer peripheral side of the cover plate (30), a third sliding groove (911) slidably fitted with the active pin (34) and a fourth sliding groove (912) slidably fitted with the passive pin (35) are formed within the fixed guide rail (90), and a transmission sliding groove (81) slidably fitted with the active pin (34) is formed within the transmission sliding block (80);
• wherein the third sliding groove (911) and the fourth sliding groove (912) are closer to the cover plate (30) than the first sliding groove (921) and the second sliding groove (922), and the transmission sliding block (80) is disposed between the second sliding groove (922) and the third sliding groove (911).