Emergency injury prevention device for vehicle-mounted seat

Abstract

The invention relates to vehicle safety technology, in particular to a passenger safety-orientated emergency injury prevention device for a vehicle-mounted seat. The emergency injury prevention device comprises a seat consisting of a seat cushion and a backrest, and a sliding device provided with a bottom plate opposite to the seat; the bottom of the seat cushion is provide with a top plate; the rear end of the top plate is provided with a driving plate extending downwards to form a right angle; and the bottom plate is fixed on a vehicle body, and the front end of the bottom plate is provided with a vertical plate extending upwards to form a right angle. The sliding device has the structure that the bottom plate is provided with a lead rail and a lead rail base; the bottom surface of the top plate is provided with a sliding block matched with the lead rail in a sliding way correspondently; a gas rod cylinder is fixed on the top plate; the tail end base of the cylinder is fixed on the driving plate in an abutting way; the top end of an ejection rod sleeve of a gas rod is tightly fixed to the vertical plate; and the short arm end of a lever device driven by an impact force pushes against an ejection rod of the gas rod. When a vehicle collides and stops suddenly in the traveling process, inertia generated by a steel ball rushes forwards along a round tube to eject the ejection rod into the ejection rod sleeve and enable the ejection rod to extend out of the ejection rod sleeve rapidly through the short arm end of a lever, and the cylinder goes back at a high speed and the driving plate drives the seat to slide backwards rapidly relative to the bottom plate, thereby effectively avoiding or greatly alleviating injury to the entire body of a passenger.

Description

Technical field: [0001] The invention relates to automobile safety technology, in particular to an injury-avoiding seat device for a passenger. Background technique: [0002] When a car crashes at high speed, the legs of the occupants sitting on the main and passenger seats are easily caught or injured by the metal plate recessed in the front of the car. The rescue team often cuts the metal plate with a welding torch, but Worrying that the sparks will burn the wounded is very tricky. Safety airbags have developed rapidly in recent years, and are widely used in cars as a modern and high-grade safety device. However, the airbag also has its unsafe side. For example, it only works on the parts above the chest of the occupant. When the car crashes, the lower body will still be clamped or even unable to escape; It will pop up at a speed of about 300km / h, and it is easy to hurt the fragile parts of the human body such as the head and neck. In addition, there are often reports t...

AI Technical Summary

Problems solved by technology

One is that it needs to occupy space in the car, and the other is that if the power supply of the car or the solenoid valve or the power line of the air pump is damaged during a crash, the cylinder will not operate, so there is a reliability problem

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