Element, preferably a closing element

摘要

Closing element for sealing holes subjected to internal pressure includes a hollow cylindrical main body insertable into the hole substantially without play, and a hat-like spreading element pressable into the main body. The spreading element applies radial pressure to the inner wall of the main body in the installed state, wherein the main body is spread and pressed against the wall of the hole. The main body has a closing bottom having a circumferential radial ring surface and a slightly conical cone surface connected thereto. During operation, the closing bottom is pressed against the end face of the spreading element by the internal pressure and is bent over inner and outer edges of the end face and deformed so as to expand radially. This results in strengthened anchoring of the closure in the material of the component, and self-reinforcement of the press-out force required to remove the closure.

主权项

1. A closing element for sealing a hole of a component subjected to internal pressure, comprising:
a main body insertable into the hole substantially without play, said main body including a side wall and a closing bottom portion, and a spreading element pressable in an axial direction into said main body, said main body and said spreading element being configured to cause said side wall of said main body to be pressed radially outward when said spreading element is axially pressed into said main body and against said bottom portion, whereby the radially outward pressing of said side wall of said main body upon axial pressing of said spreading element against said bottom portion causes, when the closing element is inserted in the hole, said side wall to press against a wall defining the hole to thereby close the hole, a face of said spreading element that is pressed at at least one edge into contact with said bottom portion having an inner edge and an outer edge, said bottom portion being configured such that contact between at least one of said inner and outer edges and said bottom portion upon axially pressing of said spreading element into said main body causes said side wall of said main body to be pressed radially outward.