Leakproof inflatable sealing rings are a new type of seal made of silicone rubber with an internal hollow structure. These seals are designed to be used with compressed air sources, utilizing inflation and deflation to alter the structure of the silicone rubber seal. Due to the flexibility of silicone rubber, the inflated seal is malleable. After contact with the sealing surface, it undergoes flexible curve deformation, allowing it to seal gaps that are straight or curved. Upon deflation, the seal automatically retracts to its original shape, restoring the equipment gap. They can quickly achieve sealing and unsealing, with frequent inflation and deflation capable of up to 1 million cycles. In operation, the internal gas pressure of the seal body ensures high sealing strength, resulting in excellent airtightness and sealing performance. The hollow structure shape of the seal body is designed based on the seal gap size, fluid pressure, and frequency of expansion and contraction. Like solid-core seals, inflatable seals can achieve radial and axial sealing for equipment.