Interface structure of ductileiron pipe

Abstract

The invention relates to a pipeline interface structure, in particular to an interface structure of a ductileiron pipe. A baffle ring mounting groove and a sealing ring mounting groove are arranged on the inner cylindrical surface of a bellmouth of the ductileiron pipe, and a sealing ring is embedded in the sealing ring mounting groove. An anchoring ring is arranged on the outer cylindrical surface of a socket and is positioned between the baffle ring mounting groove and the sealing ring mounting groove a well as is close to the baffle ring mounting groove. A baffle ring mounting hole is arranged on the end face of the socket and communicated with the baffle ring mounting groove, and a baffle ring is embedded in the baffle ring mounting groove from the baffle ring mounting hole, wherein the right end face of the baffle ring is abutted against the anchoring ring, and the left end face is abutted against the left ring surface of the baffle ring mounting groove. The interface structure of a ductileiron pipe has simple structure and firm connection and can be suitable for pipelines with various calibers and pressures.

Description

technical field [0001] The invention relates to a pipe joint structure, in particular to a ductile iron pipe joint structure. Background technique [0002] At present, in the existing self-anchored interface design of ductile iron pipes, there are two ways for the source of the self-anchored force of the interface: one is to embed the anchor block in the apron; the other is to use mechanical structures such as pressure flanges and bolts outside the joint to place the pipe The socket and the socket are connected together. The first type is suitable for small-diameter cast pipes. The ovality of medium and large-diameter cast pipes is large and the self-anchor force is also large. This structure is unreliable, and the anchor block will damage the cast pipe; the second structure is more complicated. , and the self-anchoring force is limited by the attachment and its structure, and is generally used for medium and low pressure pipelines. Invention content: [0003] In order t...

AI Technical Summary

Problems solved by technology

The first type is suitable for small-diameter cast pipes. The ellipticity of medium and large-diameter cast pipes is relatively large and the self-anchoring force required is also large. This structure is unreliable, and the anchor block will damage the cast pipe; the second structure is more complicated. , and the self-anchoring force is limited by the attachment and its structure, generally used for medium and low pressure pipelines

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