Adjustable child safety seat

Abstract

The invention discloses a posture-adjustable child safety seat which comprises a seat surface framework, a seat base, a seat angle adjusting device and a crank-slider mechanism. An arc-shaped sliding rail is arranged below the seat surface framework, an inner curved surface sliding groove which is matched with the arc-shaped sliding rail and can slip relative to the arc-shaped sliding rail is formed in the seat base, and the seat angle adjusting device is used for slip positioning and gear adjusting between the seat surface framework and the seat base. The crank-slider mechanism comprises connecting rods, sliders and guide rails, the upper ends of the connecting rods are hinged to the back of the seat surface framework, the lower ends of the connecting rods are hinged to the sliders, the sliders slide on the guide rails in a matched mode, and the guide rails are fixed. The safety seat can achieve the purpose of adjusting postures through the angle adjusting device and meanwhile can buffer and increase impact force generated by collision through the crank-slider mechanism, and therefore the safety performance of the seat is improved.

Description

technical field [0001] The invention relates to a seat, in particular to a child safety seat with adjustable posture for a seat of a passenger car. Background technique [0002] In recent years, with the rapid development of the automobile industry and automobile service industry, the number of family cars in my country has doubled, and my country's traffic laws and regulations have also been continuously improved. When a passenger car carries a child, the law requires that the child must sit in a child safety seat superior. A child safety seat is a seat specially designed for children of different weights (or age groups), restraining the child in the safety seat, and effectively improving the safety of the child in a car. According to statistics on traffic accidents, more than 18,000 children die in traffic accidents every year. When a car accident occurs, the mortality rate of infants without child safety seats in the car is 8 times that of children with child safety seats...

AI Technical Summary

Problems solved by technology

However, since the lower part of this type of child seat is fixed, the back of the seat will lean against the back seat of the car, and the inclination angle of the seat back of the child seat will not be adjustable; and because the upper part of this type of safety seat is not fixed, if the seat The back is designed as an adjustable structure, and the chair back and the base must be a split movable structure. In this way, in the event of an accident, no fixed upper part rushes forward. Under the huge impact force, the gap between the chair back and the base The connection structure is easy to break and cause danger

Based on the above reasons, the posture of the child safety seat fixed by the ISOFIX interface cannot be adjusted at present, which will seriously affect the comfort of the seat and does not conform to the humanized design

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