A protective frame for elevator reserved openings
By designing an adjustable conical frame and frame structure, the problem of adapting to elevator openings with inconsistent sizes was solved, achieving safety protection and warning effects for elevator openings.
CN224452303UActive Publication Date: 2026-07-03ANHUI WATER CONSERVANCY DEV CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI WATER CONSERVANCY DEV CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
Smart Images

Figure CN224452303U_ABST
Abstract
This utility model discloses a protective frame for elevator pre-reserved openings, comprising a generally conical frame body. The frame body includes a square first frame at the bottom, with diagonal reinforcing bars at corresponding corner positions. The upper ends of the diagonal reinforcing bars are fixed to form sharp points, and the lower ends are respectively fixed to the four corners of the first frame body. A first reinforcing bar is provided on one side of the frame body, and frames are installed on each of the four corresponding sides of the frame body. The frames are telescopically fitted along the corresponding single-sided sides of the frame body. The frames are independent structures located on the four sides of the frame body and are slidably installed along the corresponding diagonal sides to adjust the extension length of one side of the frame body. When the corresponding elevator opening is irregular or larger than the diameter covered by the frame body, the corresponding single side can be extended simultaneously through the frames. This not only enlarges the diameter of the frame body but also allows the corresponding side frames to be extended according to the shape of the opening to adapt to the opening.
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