Corner connector of which three surfaces are wrapped with rubber skin

Abstract

The invention discloses a corner connector of which three surfaces are wrapped with rubber skin. The corner connector comprises a polytetrafluoroethylene sponge core and a rubber skin forming three-surface wrapping for the sponge core, wherein the sponge core comprises a straight first body and a second body, an inclined angle of 120 degrees is formed between the first body and the second body, the tail end of the first body is connected with the tail end of the second body, and a fan-shaped space is formed between the first body and the second body; the sponge core is provided with a main body part of which the section is rectangular, and a convex extension part which convexly extends from the main body part into the fan-shaped space and of which the section is in the shape of an isosceles trapezoid; and the rubber skin comprises a first skin which wraps the bottom surface of the main body part, a second skin which wraps the side surface of the main body part, and a third skin which wraps the side surface of the convex extension part. According to the corner connector disclosed by the invention, polytetrafluoroethylene sealing materials are used, polytetrafluoroethylene has extremely excellent chemical stability and extremely low friction coefficients, especially the polytetrafluoroethylene is stuffed, and stuffed reinforced materials are added, so that on the basis that original excellent properties are maintained, physical and mechanical properties are further improved.

Description

technical field [0001] The application belongs to the technical field of ship transportation, in particular to a three-skin corner joint. Background technique [0002] Among polymer materials, rubber is widely used in shock-absorbing products because of its good mechanical properties and high resilience, and its elastic modulus is very small. But in general, the mechanical strength of rubber materials is low, the wear resistance is poor, the friction resistance generated during movement is large, and there are certain limitations in the resistance to media. [0003] Many places on existing cargo ships need to use rubber parts to play the role of shock absorption, etc., and the existing rubber parts for cargo ships, due to poor salt spray resistance, cause layer blistering or aging due to hard and brittle surfaces, resulting in huge damage. Security risks. [0004] The corner joints currently used for the sealing of ship cargo hatch covers are all foamed from a single spong...

AI Technical Summary

Problems solved by technology

Although the sponge corner joint has good elasticity and light weight, it is easy to age, compress and deform, and has a short service life.

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