Rubber gate valve rubber flashboard sealing structure and rubber gate valve

The utility model discloses a rubber gate valve rubber flashboard sealing structure which comprises a flashboard body and a sealing body, the sealing body comprises a side sealing belt, a transition sealing belt, a lower sealing belt and a bottom sealing belt, and the width of the side sealing belt is larger than the nominal diameter of a valve body; the side sealing tape, the lower sealing tape and the bottom sealing tape are of a composite sealing structure. The utility model further relates to a rubber gate valve which comprises a valve body and a rubber gate plate, and the rubber gate plate is adopted as the valve plate. In conclusion, the wide-face sealing mode and the side-sealing coherent sealing mode of a traditional rubber gate valve flashboard are changed, abrasion of rubber of the rubber gate valve flashboard is reduced, the torque of a valve switch is reduced, the phenomenon that the rubber on the side face of the flashboard cracks is avoided, and therefore the service life of the rubber gate valv