Double-roof foldable tent

A double-roof foldable tent, comprising a tent roof connection block (1), wherein a plurality of double-roof assemblies are arranged at a bottom of the tent roof connection block (1), the double-roof assemblies comprise connection rods (10), the connection rods (10) are arranged at the bottom of the tent roof connection block (1), one sides of the connection rods (10) are fixedly connected to fastener posts (13), the one sides of the connection rods (10) are provided with double-roof rods (11), and one sides of the double-roof rods (11) are provided with double-roof linkage rods (12);

• one ends of the connection rods (10) are connected to connection blocks (9), the other ends of the connection blocks (9) are connected to long rods (8), the other ends of the long rods (8) are connected to corner connection blocks (4), one sides of the long rods (8) are provided with short rods (7), and one ends of the short rods (7) are connected to fastener blocks (2);
• fastener buttons (3) are arranged inside the fastener blocks (2), movable supporting rods (14) are inserted into the fastener blocks (2) and the corner connection blocks (4), the movable supporting rods (14) are internally fixedly connected to leaf springs I (16), fixed supporting rods (15) are inserted into the movable supporting rods (14), the fixed supporting rods (15) are internally fixedly provided with leaf springs II (17), the fixed supporting rods (15) are snapped into rod sleeves (18), and the rod sleeves (18) are fixedly connected to inner walls of the movable supporting rods (14);
• and a foldable unit is arranged between every two double-roof assemblies, and the foldable unit comprises a foldable supporting rod I (5) and a foldable supporting rod II (6);
• the connection rods (10) are movably connected to the double-roof rods (11) through rotary shafts, bottoms of the connection rods (10) are movably connected to the connection blocks (9) through rotary shafts, and tops of the long rods (8) are movably connected to the connection blocks (9) through rotary shafts;
• tops of the double-roof linkage rods (12) are movably connected to the double-roof rods (11) through rotary shafts, and bottoms of the double-roof linkage rods (12) are movably connected to the long rods (8) through rotary shafts;
• when the tent is unfolded, the double-roof rods (11) are lifted up, and the double-roof rods (11) lifted are supported by the fastener posts (13);
• when the tent is to be folded, the fastener buttons (3) are pressed and move inside the fastener blocks (2), so that the leaf springs I (16) are retracted into the movable supporting rods (14), and a first limitation on movement of the fastener blocks (2) along the movable supporting rods (14) is released;
• when the fastener blocks (2) move downwards to the leaf springs II (17), the fastener buttons (3) are re-pressed, so that the leaf springs II (17) are retracted into the fixed supporting rods (15), and a second limitation on movement of the movable supporting rods (14) along the fixed supporting rods (15) is released.