SELF-CENTERING INSERT SEALING ELEMENT Russian patent published in 2022 - IPC F16B37/14 

FIELD: construction industry.

SUBSTANCE: invention relates to the field of construction, in particular to the elements and parts of fasteners. The self-centering plug-in sealing element contains a housing, in the inner part of which a central hole is made for the passage of the fastener. The body is made in the form of two identical truncated cones, combined with large bases in the center of the body and tapering to the edges formed by a central hole, and the truncated cone is part of a straight circular cone that is formed by rotating a rectangular trapezoid around its side with a height H perpendicular to the bases of the trapezoid. The radius of the larger base R1.2 is greater than the radius of the smaller base R1.1 in such a way that the value of the angle β, which is formed by the plane between the two bases of the truncated cones and their tapering sides, is in the range from 1 to 89.9 degrees., in this case, the radius of the larger base R1.2 and the radius of the smaller base R1.1 relate to the height of the side of the rectangular trapezoid H in such a way that the height H is less than or equal to the difference between the radius of the larger base R1.2 and the radius of the smaller base R1.1. A cylindrical recess is made along the central axis of the housing, the base of which is located on one of the smaller bases of the cones in such a way that the axis of the cylindrical recess coincides with the central longitudinal axis of the cones, while the radius of the recess R1.3 is less than the radius of the larger base of the truncated cones R1.2, while the length of the cylindrical recess is less than the sum of the two heights H of the sides of the rectangular trapezoid.

EFFECT: increase in the surface area for transmitting force, preventing the longitudinal displacement of the connected planes, as well as ensuring the installation of a fastening element that provides the sequential connection of two or more fasteners.

9 cl, 20 dwg