| 摘要 |
The present invention provides a internal pipe joints suitable for connection when pipes used under light-load conditions, or to be more concrete, plastic coated steel pipes having an external diameter ranging from about 28 mm to about 45 mm, which are produced by coating the outer surfaces of thin steel pipes with synthetic resin in a thin layer, are assembled into a planar or three-dimensional pipe structure, and more specifically, relates to pipe joints that have high strength in pipe connection and is excellent in design for having a simple appearance design in the position connecting the pipes. The present invention comprises a joint body in which one or more connecting inset portions extending from the joint body and each inserted in an internal bore of a corresponding pipe to be connected are each formed to have a hollow structure, a plurality of long slit-like splits are formed in each of the connecting inset portions in a circumferential direction to axially extend from an end of the corresponding connecting inset portion, and the connecting inset portion is further provided in a hollow interior thereof with a tapered portion having an internal diameter decreasing from the end thereof toward the joint body; a tapered sleeve to be inserted in the hollow interior of the connecting inset portion; and a stop bolt having a conical portion in an end portion thereof.
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