An elevator inspection port
By installing large-area inspection windows and removable covers on the hoist pipeline, the problem of difficult maintenance of existing hoists has been solved, enabling convenient internal inspection and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ANTAI HEAVY IND MACHINERY
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-12
AI Technical Summary
The existing hoist has a small inspection window, making it impossible to accurately observe the condition of internal components, which leads to maintenance difficulties.
An inspection window is installed on the hoisting pipe of the hoist, equipped with a removable inspection cover plate to increase the inspection window area, and a reliable connection is achieved by fixing bolts and nuts.
The increased size of the inspection window makes it easier for operators to observe the internal condition, simplifies the maintenance process, and improves maintenance efficiency.
Smart Images

Figure CN224347664U_ABST