Unverified90% confidenceCautionTime unknown
弹力顶撑式免打孔杆依赖两侧墙面反作用力，仅适用于两端有实体墙包夹的凹窗/垭口，飘窗单侧无墙或石膏板墙不适用
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified免打孔安装不破坏墙面，但伸缩杆需要窗框或两侧墙壁作为支撑面，无框窗户或墙面光滑弧形结构可能无法固定91% similarUnverified窗框内侧无凹槽或墙面为松软石膏板/中空墙时不建议用弹力顶伸杆，两端无处借力会滑落砸落90% similarUnverified顶压式门挡依赖门框两侧硬质墙面提供反作用力，安装于石膏板、空心墙或墙纸表面时压力不足易脱落，此类墙体应改用螺丝固定或落地式独立围栏87% similarUnverified压力固定门不伤墙但会在墙面留下顶杆压痕，且只能安装在两侧有对称承压墙面/门框的位置；若一侧为石膏板墙、玻璃或开放式空间则无法稳固安装86% similar
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