Emergency elevator
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Solution Overview
Problem
Conventional emergency elevators are insufficient in blocking smoke, heat, and flames during fires, and fail to provide a safe evacuation environment for vulnerable individuals, with inadequate sealing and limited functionality when power is lost.
Innovation Solution
An emergency elevator system featuring a refractory door and platform door configuration with sealing members, an oxygen supply device, emergency ventilation system, sterilizing/disinfecting device, and escape hatches, along with a jet injection system to form an air curtain, ensuring a clean and safe environment for passengers and enabling evacuation even during power outages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional emergency elevators are used, then they can provide basic evacuation capability, but they fail to block smoke, heat, and flames effectively
Solution Approach 1:
The patent applies flexible sealing members (gaskets) between the platform door and door frame to create a tight seal. These flexible elements deform to fill gaps and prevent penetration of smoke, heat, and flames, directly addressing the sealing performance deficiency of conventional emergency elevators.
Solution Approach 2:
The patent employs composite construction combining metal door frames and plates with flexible sealing materials (such as graphite or intumescent compounds). This composite structure provides both mechanical strength and fire-resistant sealing properties, enabling the door assembly to block smoke, heat, and flames effectively while maintaining structural integrity.
2Adaptability or versatility
If the elevator is designed with basic emergency features, then it can operate during power outages, but it cannot provide oxygen supply or air purification
Solution Approach 1:
The patent integrates multiple emergency functions into a single platform door system: sealing against fire, oxygen supply through integrated masks, and air purification through filtration. This multi-functional design allows the elevator to adapt to various emergency scenarios while maintaining air quality and providing life support.
Solution Approach 2:
The patent introduces air purifying devices and oxygen supply systems as intermediary components between the external environment and the elevator interior. These mediators filter and condition the air, blocking harmful substances while providing clean breathable air to passengers during evacuation.
3Strength
If the emergency exit is made small to maintain cage structure, then the cage structure remains intact, but vulnerable individuals cannot escape
Solution Approach 1:
The patent divides the emergency escape function into two parts: the main cage structure remains intact for strength, while a separate hatch or opening mechanism is introduced at the top of the cage. This segmentation allows the primary structure to maintain structural integrity while the auxiliary opening provides accessible escape for vulnerable individuals.
Solution Approach 2:
The patent adds a vertical dimension to the escape mechanism by positioning the hatch at the top of the cage rather than modifying the side walls. This dimensional change allows escape functionality to be added without compromising the horizontal structural integrity of the cage, and provides easier access for individuals who cannot climb or crawl through small openings.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents smoke, heat, and flames from entering the elevator car, provides a clean environment, and ensures safe evacuation of passengers, including vulnerable individuals, by maintaining a sealed structure and supplying oxygen, while allowing for emergency treatment and escape during fires.
Implementation Method 1
a jet injection system to form an air curtain
Implementation Method 2
sealing members, an oxygen supply device, emergency ventilation system
Implementation Method 3
oxygen supply device
Implementation Method 4
emergency ventilation system
Implementation Method 5
sterilizing/disinfecting device provided on one side of the air purifying device and configured to remove and sterilize noxious substances in an air
Data Source
AI summary
An emergency elevator includes a door frame installed on upper, left and right sides of an entrance of an elevator platform, an elevator car configured to vertically move along an elevator passage and provided with a pair of elevator doors, a pair of platform doors installed in the door frame, a lower frame installed on a lower side of the entrance of the elevator platform and configured to slidably support the platform doors, an upper door rim installed on an upper side of the platform doors, a side door rim vertically installed at a lateral end of the platform doors, an oxygen supply device configured to supply oxygen to a patient in the elevator car, an emergency ventilation device configured to supply a purified air into the elevator car, and a filter device provided in the blowing duct so as to remove harmful substances introduced into the elevator car.