Abstract: A flexible joint structure for an exhaust pipe, mainly used inside vehicle exhaust pipes, including a bellows and a braided hose that are arranged coaxially in sequence from the inside to the outside, wherein the braided hose includes at least two segments, and both ends of each segment are fixedly connected to the bellows at the inner side by means of a fixing member, and the length of each section of the braided hose is less than or equal to 200 mm. The flexible joint structure of the exhaust pipe according to the present disclosure has increased damping performance, which can improve the NVH performance of the entire vehicle.

Abstract: A shock-absorbing flexible pipe includes a corrugated metal pipe and a buckle hose. The buckle hose is sleeved and connected with the corrugated metal pipe. An inner knitted hose is arranged between the buckle hose and the corrugated metal pipe. The inner knitted hose at least partially has a double-layer or multi-layer knitted mesh structure.

Abstract: A shock-absorbing flexible pipe includes a corrugated metal pipe and a buckle hose. The buckle hose is sleeved and connected with the corrugated metal pipe. An inner knitted hose is arranged between the buckle hose and the corrugated metal pipe. The inner knitted hose at least partially has a double-layer or multi-layer knitted mesh structure.