In rental scenarios, the selection and use of door and window anti-fall chains need to balance safety, convenience, and protection of doors and windows. The details are as follows:
- Key points for selection:
- Installation method: Prioritize drill-free styles, such as clip-on (connected to the door/window frame slot via clips), magnetic (fixed by strong magnetic adsorption, suitable for metal doors and windows), or adhesive (equipped with high-strength non-marking glue, suitable for smooth wooden or plastic doors and windows). This avoids permanent damage to doors and windows caused by drilling, which may affect the return of the rental.
- Material and portability: Choose 304 stainless steel, which not only has sufficient load-bearing capacity (static load-bearing not less than 30 kg) but also is corrosion-resistant and lightweight, making it easy to disassemble and take away when moving. The chain diameter is preferably 4-5 mm; too thin and it is easy to break, too thick and it is inconvenient to carry.
- Adaptability: Considering the diversity of rental doors and windows, choose a chain with adjustable length (20-35 cm), which can adapt to different sizes of swing doors and sliding doors. The clips or suction cups at the connecting ends should have anti-slip designs to prevent falling off when the doors and windows shake.
- Safety: Ensure there are no sharp protrusions at the chain connections to avoid scratches during daily use. The locking structure of the clips should be firm, so that children cannot easily open them, but adults can easily disassemble them when operating.
- Usage precautions:
- Before installation: First clean the surface of the door/window installation position (remove dust and oil stains) to ensure the fixing effect of adhesive or magnetic anti-fall chains. If the door/window frame is aged or damaged, avoid installing in these areas and choose a structurally stable area.
- During use: Check the fixing situation once a week. If the adhesive type becomes loose, replace it with new non-marking glue in time. Open and close doors and windows gently to avoid pulling the chain forcefully, which may cause the connection part to fall off. Do not hang heavy objects (such as clothes, bags) on the chain to prevent exceeding the load-bearing range.
- Disassembly and restoration: When disassembling before returning the rental, for the adhesive type, heat the glue surface with a hair dryer's hot air, wait for the glue to soften, then gently tear it off. Use a special glue remover to wipe off the remaining glue stains. For the clip-on type, operate according to the disassembly instructions to avoid forcibly breaking and damaging the door/window frame. After disassembly, check if there are any marks on the doors and windows; if there are slight marks, simply repair them with paint of the same color.
