Washer Door Hook Structure for Sealing and Glass Support

The hook structure enables self-alignment during assembly, where the hooks automatically engage with the hook grooves without requiring precise pre-drilled hole alignment. This self-service mechanism eliminates the need for complex alignment procedures and reduces defective parts caused by misaligned holes, while still providing sufficient fastening force through the interlocking hook-groove engagement.

The patent replaces the screw coupling mechanism with a hook coupling mechanism. This substitution eliminates the need for threaded holes, screws, and associated fastening hardware, thereby reducing manufacturing costs and simplifying the assembly process while maintaining adequate fastening strength through the geometric interlocking of hooks and grooves.

The hook structure employs asymmetric geometry where the hook protrusions on the outer frame engage with corresponding hook grooves on the inner frame in a non-symmetric arrangement. This asymmetric design creates a mechanical interlock that prevents disengagement under load, providing sufficient fastening force to support the front glass weight while maintaining manufacturing simplicity.

The hook structures utilize curved surfaces and rounded geometries that facilitate smooth engagement and load distribution. The curved profile of the hooks and grooves allows for gradual engagement under the weight of the front glass, distributing stresses more effectively than sharp-edged geometric features, thereby enhancing the fastening capability without increasing complexity.

The patent merges the fastening function and sealing function into a single integrated hook-groove coupling structure. The same hooks that provide mechanical fastening also create a tight fit between the outer frame and inner frame, eliminating gaps without requiring separate sealing members. This merging of functions reduces device complexity while maintaining reliable sealing performance.

The patent extracts the sealing function from the fastening structure by designing the hook-groove interface to inherently prevent moisture and air infiltration through precise geometric fit. This extraction eliminates the need for additional sealing components, reducing overall device complexity and removing the maintenance burden associated with replacing deteriorating sealing members.