Unverified75% confidenceCautionTime unknown
体重超过箱体标称承重上限的宠物不要硬塞，硬壳箱底板受压超限会在提拉时开裂，选购时看清承重标称并留20%余量
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75%
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Long-term
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Unverified承重上限需预留20%余量：宠物实重+箱体自重(通常3-5kg)不应超过标称承重的80%，否则拉杆和轮轴长期使用易变形松脱87% similarUnverified承重标注需留30%余量，标5kg承重实际建议装≤3.5kg宠物，因软包底部支撑不如硬箱，超载会导致底部下垂压迫宠物86% similarUnverified承重能力与背负轻便性存在矛盾：硬质支撑框架和厚底板能承更大重量并防塌陷，但空包自重增加0.5-1kg，小型宠物无需选带全硬框的重型款85% similarUnverified载重承重值需匹配宠物体重并留余量，标称承重应≥宠物体重1.5倍，尤其提手/背带处缝线需加固，防止提拿时开裂坠落85% similarUnverified承重上限应预留20%冗余：标称承重需≥宠物实际体重×1.2，同时确认底板为硬质支撑（PP板或EVA），软底包超过5kg宠物会导致底部塌陷压迫四肢84% similar
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