一种用于电梯防冲顶防坠落的双向限速制动装置
By designing a two-way speed limiting braking device, and using a speed governor and tension wheel in conjunction with a linkage mechanism and a solenoid valve to control the safety clamp, the problem of elevators being unable to simultaneously prevent falling into the shaft and overshooting the top is solved, thus achieving two-way safety protection for the elevator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUQIAN FUBANG ELEVATOR CO LTD
- Filing Date
- 2022-11-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing elevator safety devices can only prevent elevators from falling into the shaft, but cannot simultaneously prevent elevators from overshooting the top, leading to increased safety hazards.
Design a bidirectional speed limiting and braking device. The first speed limiter and the first tensioner work together to prevent the elevator from going down too fast, and the second speed limiter and the second tensioner work together to prevent the elevator from going up too fast. The safety clamp is controlled by a linkage mechanism and a solenoid valve to lock the guide rail and disconnect the power supply to the traction machine.
It achieves two-way protection against overspeed during both descent and ascent, preventing accidents such as falling into the shaft and overshooting the ceiling, and ensuring the safe operation of the elevator.
Smart Images
Figure CN115676557B_ABST