Folding chair frame structure with trapezoidal stool surface

Abstract

The invention provides a folding chair frame structure with a trapezoidal stool surface, and belongs to the technical field of folding chairs. The folding chair frame structure comprises four upright columns. Upper supports and lower supports are arranged on the upright columns, every two adjacent upright columns are respectively connected with the corresponding upper supports and the corresponding lower supports on the corresponding upright columns by four ends of a corresponding X-shaped hinge rod, four side surfaces are formed by the X-shaped hinge rods and include a front side, a left side, a right side and a rear side, the adjacent side surfaces of the X-shaped hinge rods are connected with one another in a horizontal swinging manner, the sizes of the X-shaped hinge rods on the front side and the rear side are different from one another, the sizes of the X-shaped hinge rods on the left side and the right side are identical to one another, the upper supports are relatively slidably arranged on the upright columns, and angles between the adjacent surfaces of the X-shaped hinge rods can be changed under the constraint effects of the sizes of the X-shaped hinge rods on various surfaces of the folding chair frame structure when the X-shaped hinge rods are unfolded, so that a trapezoidal stool surface support structure can be formed by the upper supports on the four upright columns. The folding chair frame structure has the advantages that the stool surface is of a trapezoidal structure, and accordingly people can sit on the folding chair frame structure conveniently; the X-shaped hinge rods of a chair can be completely folded, and can be prevented from being affected by angles of a trapezoid even when unfolded.

Description

technical field [0001] The invention belongs to the technical field of folding chairs, in particular to a folding chair frame structure with a trapezoidal stool surface. Background technique [0002] With the development of the outdoor leisure industry, the requirements for the shape and ease of use of leisure products continue to increase. The beach folding chairs and fishing chairs that are more commonly used at present are relatively simple in product structure and shape, and most of the stool surfaces adopt rectangular and square structures. , rigid shape and other problems, for this reason, the folding chair frame structure of the present invention is based on the leisure sitting posture and action of the human body, and the characteristics such as wide front and narrow rear are presented as the basis, so as to realize the folding chair frame with compact folding and trapezoidal structure of the stool surface, Because the structure of the backrest is narrowed, the mater...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of folding and using the existing folding chairs, and provide a trapezoidal chair frame structure with compact folding and reasonable use

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