Folding chair and alumium section used by folding chair

Abstract

The invention discloses a folding chair and an alumium section used by the folding chair. The folding chair comprises a chair back support (1), a chair face support (2), two back chair legs (3) and two front chair legs (4); the upper ends of the two front chair legs (4) are respectively pivoted with the upper ends of the two back chair legs (3); the two sides of the middle of the chair surface support (2) are pivoted between the two front chair legs (4); the two sides of the back end of the chair surface support (2) are provided with sliding sleeves (5) which are respectively in sliding connection with the two back chair legs (3); the back ends of the two sides of the chair surface support (2) are provided with pivoting seats (6) which are pivoted with the lower ends of the two sides of the chair back support (1); and the sliding sleeves (5) are respectively pivoted with the pivoting seats (6) at the same side. Compared with the prior art, the folding chair has the characteristic of being good in use stability.

Description

technical field [0001] The invention relates to a folding chair and an aluminum profile used therefor. Background technique [0002] Folding chairs are a standing household item in people's daily life because they have the functions of being easy to store and carry. At present, most of the folding chairs in the prior art realize the folding function through connecting rods, and a small part realize the folding function through the combination of sliding connection and pivot joint. The invention patent of the chair; but the former has a complex structure and high cost, and after a period of use, the connecting rod is prone to bending or the hinge of the connecting rod is prone to disengagement, and the stability of use is poor; while the latter is in use, due to There are protrusions on the outer circumference of the sliding sleeve that are pivotally connected to the seat, and the pivot joints are also subject to tension when folded or unfolded. After a period of use, the pi...

AI Technical Summary

Problems solved by technology

At present, most of the folding chairs in the prior art realize the folding function through connecting rods, and a small part realize the folding function through the combination of sliding connection and pivot joint. The invention patent of the chair; but the former has a complex structure and high cost, and after a period of use, the connecting rod is prone to bending or the hinge of the connecting rod is prone to disengagement, and the stability of use is poor; while the latter is in use, due to There are protrusions on the outer circumference of the sliding sleeve that are pivotally connected to the seat, and the pivot joints are also subject to tension when folded or unfolded. After a period of use, the pivot joints are prone to breakage or the protrusions are easy to break with the sliding sleeve. When the situation occurs, the back of the chair and the front legs are of an integrated structure. In order to ensure the comfort of the chair back when the user uses it, the herringbone angle between the front legs and the back legs must be large enough, which makes the front legs and the back legs The moment at the hinge joint of the legs is also relatively large, which in turn causes the joint between the front leg and the rear leg to be easily damaged by force during use, so the use stability is also poor

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