双开门电梯防撞系统及双开门电梯
By installing a detection light curtain and alarm inside the elevator car, the double-door elevator anti-collision system solves the problem of forklifts hitting the elevator doors, realizes the safe operation of double-door elevators, reduces the accident rate and maintenance costs, and improves the safety and economic efficiency of production and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO ZHEJIANG IND CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
Smart Images

Figure CN224512956U_ABST
Abstract
Claims
1. A collision avoidance system for a double door elevator, characterized by, include: The first protective mechanism (1) is installed inside the car (100) and can form a first detection light curtain inside the car (100). The first detection light curtain is formed on one side adjacent to the first elevator door (101). The second protective mechanism (2) is installed inside the car (100) and can form a second detection light curtain inside the car (100). The second detection light curtain is formed on one side adjacent to the second elevator door (102). The alarm (3) is connected to both the first protective mechanism (1) and the second protective mechanism (2). The first protective mechanism (1) can detect an object approaching the first elevator door (101) through the first detection light curtain and trigger the alarm (3) to sound. The second protective mechanism (2) can detect an object approaching the second elevator door (102) through the second detection light curtain and trigger the alarm (3) to sound.
2. The dual door elevator crash prevention system of claim 1, wherein, The first protective mechanism (1) is communicatively connected to the door operator control system for controlling the opening and closing of the first elevator door (101) and the second elevator door (102), and can open the first detection light curtain when the second elevator door (102) is opened; The second protective mechanism (2) is connected to the door machine control system and can open the second detection light curtain when the first elevator door (101) is opened.
3. The dual door elevator crash prevention system of claim 1, wherein, The first protective mechanism (1) includes a first transmitter (11) and a first receiver (12). The first transmitter (11) and the first receiver (12) are respectively disposed on both sides of the first elevator door (101) along its opening and closing direction. The first transmitter (11) can emit a beam of light toward the first receiver (12). The second protective mechanism (2) includes a second transmitter and a second receiver, which are respectively disposed on both sides of the second elevator door (102) along its opening and closing direction. The second transmitter is capable of emitting a beam of light toward the second receiver.
4. The dual door elevator crash prevention system of claim 3, wherein, The first transmitter (11) includes a plurality of first transmitting units, and the first receiver (12) includes a plurality of first receiving units. The plurality of first transmitting units and the plurality of first receiving units correspond one-to-one and are all arranged in a vertical direction. The second transmitter includes several second transmitting units, and the second receiver includes several second receiving units. The several second transmitting units and several second receiving units correspond one-to-one and are all arranged in a vertical direction.
5. The dual door elevator crash prevention system of claim 1, wherein, The alarm (3) is located inside the car (100) and installed on the top of the car (100).
6. The dual door elevator crash prevention system of claim 5, wherein, The alarm (3) is installed at the middle position on the top of the car (100).
7. The dual door elevator crash prevention system of claim 1, wherein, The alarm (3) is an audible and visual alarm.
8. The dual door elevator crash prevention system of claim 1, wherein, The first detection light curtain is formed at a position at a first safety distance from the first elevator door (101).
9. The dual door elevator crash prevention system of claim 1, wherein, The second detection light curtain is formed at a position at a second safety distance from the second elevator door (102).
10. Double door elevator, characterized in that An elevator collision prevention system as claimed in any one of claims 1-9, comprising a car (100) provided with a first elevator door (101) and a second elevator door (102) arranged opposite to each other.