CONNECTION OF RECTANGULAR IN CROSS SECTION PIPES AT ANGLE TO EACH OTHER (EMBODIMENTS) AND EMBEDDED ELEMENT FOR CONNECTION OF RECTANGULAR IN CROSS SECTION PIPES Russian patent published in 2024 - IPC F16B7/00 

FIELD: connections or fittings for pipes and hoses.

SUBSTANCE: invention relates to connections of rectangular pipes. According to the first embodiment, connection of rectangular pipes includes longitudinal and transverse pipes connected by a threaded insert element; holes are made in the longitudinal pipe and a bolt is installed in them, which is screwed into the threaded insert element of the transverse pipe. Embedded element is made in the form of a corner, one part of which is located outside the transverse element and is attached to it, and the other part of the corner of the embedded element has a hole with a nut, on the shank of which there is a cylindrical fixing ring. In one wall of the transverse pipe there is a window for passage through the window into the transverse pipe of the angle of the embedded element and its nut, wherein crosswise pipe opposite wall has groove to accommodate insert element angle piece. At each end of the transverse pipe there are tenons located in the transverse grooves of the longitudinal pipe. Second embodiment of the connection is similar to the first version, except for the tenons; at that, the ends of each wall of the transverse pipe are made straight and located in the same plane. Embedded element is made in the form of L-shaped angle, both parts of which are made flat, one part of angle has at least one hole for rivet for attachment of angle to transverse pipe, and second part of angle is made with hole, in which nut of embedded element is located and fixed. Nut has an elongated shape with a cylindrical shank and a narrowed part of the shank. Cylindrical ring with a collar is put on the shank, which is converted by means of deformation into a locking ring, which fixes the nut in the hole of the angle piece in the working position.

EFFECT: invention increases reliability of pipe connection.

7 cl, 18 dwg