Built-in anti-deformation and shrinkage rubber ring

Abstract

This utility model relates to the field of rubber ring sealing technology and discloses a built-in anti-deformation and shrinkage rubber ring, including an inner rubber ring. The inner wall of the inner rubber ring is provided with an arc-shaped groove, a guide groove, a circular groove, and a sliding groove. The outer wall of the inner rubber ring is provided with a sealing resistance ring. A slider is fixedly mounted on the outer wall of the sealing resistance ring. The outer wall of the inner rubber ring is provided with an outer rubber ring. An air bladder ring is provided on the outer wall of the arc-shaped groove. An air tube is provided on the top of the air bladder ring. During the extension of the sealing resistance ring, the slider, piston column, mounting plate, and magnets four and two cooperate to push the piston column to move along the pipe when the sealing resistance ring extends. This causes magnets four and two to move closer together. Utilizing the principle of magnetic repulsion, the mounting plate and piston column are reset, thereby pushing the sealing resistance ring to slide in the opposite direction, thus filling the gap at the pipe connection and ensuring an improved sealing effect of the sealing resistance ring.

Images