Vehicle Self-Rescue Device Using Segmented Tyre Claws and Jacking
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Solution Overview
Problem
Existing anti-skid chains for vehicles are cumbersome to mount and dismount, consume significant time and labor, and have inadequate skid prevention and self-rescue capabilities, especially in snowy and slippery conditions, leading to frequent accidents.
Innovation Solution
A self-rescue escape device comprising a central positioning device, tyre claws, and a jacking device that can be quickly assembled and disassembled to lift a trapped vehicle, equipped with anti-skid chain plates and a driving disk for enhanced traction and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anti-skid chains are mounted on tyres to increase frictional force and prevent skidding, then the running safety performance of vehicles is improved, but the device becomes heavy and difficult to mount and dismount, consuming significant time and labor
Solution Approach 1:
The escape device is divided into multiple independent components: central positioning device, tyre claws, and jacking device. Each component can be quickly assembled and disassembled independently, eliminating the need to handle heavy anti-skid chains as a single cumbersome unit.
Solution Approach 2:
The device enables drivers to perform self-rescue operations without external assistance. The quick-assemble design allows drivers to rapidly mount the device on trapped tyres and execute extraction maneuvers alone, eliminating the labor-intensive manual handling of traditional anti-skid chains.
2Reliability
If anti-skid chains are used to generate pressure on the ground and increase friction, then skid prevention is achieved, but the chains cause severe pavement destruction and tyre wear
Solution Approach 1:
The jacking device acts as an intermediary mechanism between the tyre and ground. Instead of chains directly contacting and scraping the pavement, the jacking device lifts the tyre body to overcome the pit, using the tyre's rotational motion to drive extraction while minimizing direct abrasive contact with the ground surface.
Solution Approach 2:
Instead of increasing friction through chain contact with the ground (traditional approach), the device inverts the approach by lifting the tyre body upward using the jacking mechanism. This reverses the force direction from horizontal friction to vertical lifting, eliminating pavement destruction while maintaining skid prevention.
3Reliability
If traditional self-rescue equipment is used to extract trapped vehicles, then extraction can be achieved, but the equipment is complex to assemble and disassemble, consuming a great deal of time and labor
Solution Approach 1:
The escape device is segmented into modular components (central positioning device, tyre claws, jacking device) that can be quickly assembled and disassembled. This modular structure eliminates the time-consuming assembly process of traditional self-rescue equipment while maintaining full extraction capability.
Solution Approach 2:
The device can be pre-positioned or quickly deployed at the scene of tyre entrapment. The simplified assembly structure allows drivers to rapidly mount the device on the trapped tyre and immediately begin extraction operations, minimizing the time lost during equipment setup compared to complex traditional systems.
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 device allows for rapid and safe extraction of a vehicle from pits, reduces accident frequency, and can be easily assembled and disassembled, with the anti-skid chain plates providing effective traction on slippery surfaces and the driving disk enabling connection to other tools for broader application.
Implementation Method 1
one end of which is provided with a suction cup
Implementation Method 2
The external claw portion is provided with a threaded hook which is fastened with the ring
Implementation Method 3
the jacking device is further provided with a jacking head in contact with the pit ground, and the jacking head protrudes out of the outer surface of the tyre
Implementation Method 4
the tyre claw and the central positioning device are fitted to each other and clamp the tyre
Data Source
AI summary
An escape device for self-rescue in the case of an auto tyre being trapped in a pit includes a central positioning device, at least one tyre claw and a jacking device. The central positioning device is positioned and mounted at a central position of a wheel. The tyre claw and the central positioning device are fitted to each other and are clamped onto the tyre. The jacking device and the tyre claw are fitted to each other. The jacking device is further provided with a jacking head in contact with the pit ground. The jacking head protrudes out of an external rim of the tyre. The escape device for self-rescue can carry out effective rescue for trapped tyres, is convenient and fast to assemble and disassemble, saves time and energy, improves driving safety, and reduces the occurrence of accidents.