Folding sit-up board

• Main Author: KUANG YUXIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2020
• Subjects: AMUSEMENTS; APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING; BALL GAMES; GAMES; HUMAN NECESSITIES; SPORTS; TRAINING EQUIPMENT

The utility model discloses a folding sit-up board. Bearing main board, a buckle is fixedly mounted at the side position of the outer side of the bearing main plate; an adjustable supporting plate ismovably mounted on the outer edge side of the bearing main plate; the bearing main plate and the adjustable supporting plate are movably connected with each other through a threaded connecting shaft;a butt joint inserting block is fixedly installed on the edge side of the outer side of the bottom of the bearing main plate. And the bearing main plate and the bearing middle plate are movably connected with each other through a first-stage connecting rotating shaft, a first-stage soft cushion is fixedly installed on the upper end face of the bearing main plate, a clamping foot supporting rod isfixedly installed at the upper end of the inner side of an adjustable supporting plate, and a fastening adjusting threaded sleeve is movably installed outside a threaded connecting shaft. According tothe folding sit-up board, t