U-shaped inner surface plastic-coating steel tube protecting cap

Abstract

The invention provides a U-shaped inner surface plastic-coating steel tube protecting cap, and relates to the industry of petroleum exploitation and delivery. The U-shaped inner surface plastic-coating steel tube protecting cap is used for protecting an end of a petroleum steel tube and comprises an outer wall and an inner wall which are connected integrally, wherein a longitudinal groove is formed between the outer wall and the inner wall; a plurality of cover fillets are longitudinally arranged on the top of the groove along the inner wall; the cover fillet on the top is bent towards one side of the inner wall to form a 90-degree cover top which is fixedly connected with the inner wall to cover the top of the groove formed between the outer wall and the inner wall; and a connecting plate which prevents the cover fillets from dropping is arranged on a part, which is in contact with the bottom of the outer wall, of the cover fillet on the bottom. The U-shaped inner surface plastic-coating steel tube protecting cap has the beneficial effects that after the technical scheme is adopted, the protecting cap is inserted in a tip of the steel tube, not only is combined to the steel tube tightly, but also is easy to assemble and disassemble; and the protecting cap cannot drop in loading, unloading and conveying processes, is safe and reliable, and has perfect effects.

Description

technical field [0001] The invention relates to the petroleum exploitation and transportation industry, and is used for the protection of the end of petroleum steel pipes. Background technique [0002] During the transportation of steel pipes used in oil exploration and transportation, the ends of the pipes are easily damaged. In order to protect the ends of the pipes, protective caps are generally placed on the ends of the pipes. The existing protective caps are rarely made of all-plastic materials, because all The application range of plastic protective caps is very small, and the use of pipes below 60mm is basically controlled. The main reason is the problem of raw materials and manufacturing processes, especially the performance and strength of raw materials that do not meet the technical requirements. When the size is large, the protective cap is easy to loosen and fall off after being sleeved on the pipe end, and the protective effect is not good. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0002] During the transportation of steel pipes used in oil exploration and transportation, the ends of the pipes are easily damaged. In order to protect the ends of the pipes, protective caps are generally placed on the ends of the pipes. The existing protective caps are rarely made of all-plastic materials, because all The application range of plastic protective caps is very small, and the use of pipes below 60mm is basically controlled. The main reason is the problem of raw materials and manufacturing processes, especially the performance and strength of raw materials that do not meet the technical requirements

When the size is large, the protective cap is easy to loosen and fall off after being sleeved on the end of the pipe, and the protective effect is not good

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