Adjustable dustproof sunshade arrangement

An adjustable dustproof sunshade arrangement, comprising:

• a wall base adapted for mounting on a wall surface;
• a shelter holder attaching to said wall base for longitudinally mounting on said wall surface;
• a fabric shelter retractably reeled in a roll manner, wherein said fabric shelter has an inner edge attached to said shelter holder and an outer edge arranged when said fabric shelter is reeled up, said fabric shelter is received in said shelter holder, and when said outer edge of said fabric shelter is pulled out from said shelter holder, said fabric shelter forms a shading area thereunder;
• an adjustable joint, comprising:
• a supporting seat mounted at said shelter holder;
• an adjustment member having an elongated through slot and an end portion pivotally connected to said supporting seat in a transverse direction;
• and
• a slider shaft, which passes through said elongated through slot, slidably mounting said adjustment member to said supporting seat, wherein said adjustment member is pivotally moved to drive said slider shaft to slide along said elongated through slot to limit a pivotally transverse movement of said adjustment member along said elongated through slot with respect to said supporting seat;
• and
• at least a supporting arm having an inner end pivotally connecting to said adjustment member in a longitudinal direction and an outer end mounting to said outer edge of said fabric shelter to retain said fabric shelter in an extending position, wherein said supporting arm is longitudinally and transversely shifted with respect to said wall base to selectively adjust a position of said fabric shelter with respect to said wall surface so as to maximize said shading area thereunder.