Brake Control Device for High-Rise Fire Rescue Systems
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Solution Overview
Problem
Current high-rise fire rescue systems lack an effective emergency braking mechanism and secure connection devices, posing safety risks during emergency situations, especially for taller buildings where traditional escape methods are unsafe for all individuals, including the elderly and those with height fears.
Innovation Solution
A high-rise fire rescue device with A and B cable take-up devices connected via a reduction gearbox and permanent magnetic crane for emergency braking, along with a locking mechanism to ensure stable base frame connection and double cable take-up drums for enhanced safety, featuring a brake mechanism with a brake disc, pad, and drum for reliable braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a semi-automatic brake system is used for braking control, then the device can achieve braking function, but the brake pad wear results in brake failure and cannot stop in time during emergency situations
Solution Approach 1:
The brake system is divided into two independent parts: a semi-automatic brake system for normal operation and an emergency braking device with magnetic block for emergency situations. This segmentation allows each subsystem to perform its specific function without interfering with the other, ensuring that the emergency brake can activate independently when needed.
Solution Approach 2:
The emergency braking device with magnetic block is pre-installed and ready to activate immediately when emergency情况的 arises. The magnetic block is positioned to engage with the magnetic attraction mechanism, providing a pre-prepared safety net that can stop the cable take-up device in time without relying on wear-prone brake pads.
2Ease of manufacture
If the left cable take-up device and right cable take-up device are connected by connecting device or connecting pin, then the devices can be assembled, but the connection may detach during use affecting escape situation
Solution Approach 1:
The connection device incorporates a locking mechanism that automatically engages and locks the left and right cable take-up devices together during assembly. This preliminary locking action ensures that the connection is secured before operation begins, preventing detachment during use.
Solution Approach 2:
A locking mechanism acts as an intermediary element between the left and right cable take-up devices. This locking mechanism provides a positive connection that prevents the devices from detaching during operation, while still allowing for relatively simple assembly through the locking action.
3Adaptability or versatility
If A lifeboat and B lifeboat are suspended on the first wire rope of the left cable take-up device and right cable take-up device, then the rescue function is achieved, but there is certain security risk
Solution Approach 1:
The cable take-up devices are designed with dual cable take-up drums instead of single drums. This local quality change provides redundant cable support paths, ensuring that if one cable fails, the other can still support the lifeboats, thereby improving safety reliability while maintaining the rescue function.
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 achieves stable and reliable emergency braking and secure operation by utilizing a permanent magnetic crane for quick stopping and a locking mechanism to prevent device detachment, enhancing safety for all users, particularly in taller buildings.
Implementation Method 1
a magnetic block is provided at one end of the output shaft, and a permanent magnetic crane is provided at one end of the magnetic block
Data Source
AI summary
This invention presents a brake control device for high-rise fire rescue systems, notable for its well-thought-out design, high safety standards, and consistent, dependable functionality. The system features two main elements: cable take-up device A on base frame A, and cable take-up device B on base frame B. A connecting device ensures the A transfer spindle of device A and the B transfer spindle of device B rotate in unison. Central to the system is the emergency braking device, comprising a reduction gearbox located under either the A or B cable take-up device. This gearbox is equipped with an input shaft and an output shaft, linked by a gear transmission set. The input shaft connects to the A or B cable take-up device via a transmission member. A magnetic block is affixed to the output shaft's end, and a permanent magnetic crane is positioned at the magnetic block's end.