Thread guard of the coupling element of the threaded connection of oil and gas field pipes

摘要

The utility model relates to the field of oil and gas production, in particular to devices for protecting threaded joints of oil and gas field pipes during their transportation and storage. The fuse contains a cylindrical housing, providing closure of the inner space of the coupling element, and a steel shell mounted in the housing. A thread is made on the outer surface of the housing, the profile of which completely repeats the thread profile of the coupling element of the threaded connection, the fuse is intended for protection. On the outer surface of the housing there are sealing elements made in the form of rubber rings, while the outer sealing element is located at the point of contact with the end surface of the coupling element, and the inner sealing element is at the point of contact with the thrust surface of the coupling element and has a "L-shaped »Profile. The fuse body at the location of the internal sealing element on it is made in the form of a response "L-shaped" profile. The distance between the surface of the outer sealing element mating with the end surface of the coupling element and the surface of the inner sealing element mating with the thrust surface of the coupling element is less than 1-5 mm from the end to the thrust surface of the coupling element. A fuse is sealed when exposed to adverse environmental conditions: protection against moisture, aggressive environments, dust and other contaminants. 4 s.p. f-ly, 1 ill.