Waist support supporting structure

The utility model discloses a waist support supporting structure which comprises a supporting plate used for fixing a waist support cushion, an auxiliary adjusting device is connected in series in the middle of the supporting plate in a penetrating mode, the auxiliary adjusting device can adjust the angle of the supporting plate, and the auxiliary adjusting device comprises an angle locking assembly and a support. The angle locking assembly is arranged on one side of the auxiliary adjusting device and used for locking the inclination angle of the support. According to the adjustable waist cushion, angle adjustment can be achieved, angle adjustment can be locked, after an angle is locked, the waist cushion can swing in a self-adaptive mode within an adjustable range, but the swing amplitude is not too large, and therefore swing of the waist cushion is limited by the stroke amplitude of the damping rod. Therefore, the waist muscle of the user can be completely relaxed, and adaptive swing can be relaxed accordin