Adjustable lumbar support device for office chair

Abstract

The invention discloses an adjustable lumbar support device for an office chair. The adjustable lumbar support device comprises support feet, wherein a chair seat is installed on the upper sides of the support feet, a backrest is welded to one side of the chair seat; a support box is installed on one side of the lower part of the backrest; an expansion cavity is formed in the support box; expansion links are installed in the expansion cavity; one end of each expansion rod is inserted into one end of a support rod in a sliding manner; a massage ball is installed at one end of each support rod;the support rods and the massage balls are arranged in three rows; and the plurality of support rods and the plurality of massage balls are arranged in each row. According to the adjustable lumbar support device for the office chair, via the massage balls installed at the ends of the support rods, massage can be performed on the waist; springs are arranged on the outer sides of the expansion linksin a sleeving manner, so that the support rods has mobile elastic contractility, the massage balls can support the side of the waist via the support rods when a user is in different sitting postures,and sitting and use comfort is improved.

Description

technical field [0001] The invention relates to the technical field of office chairs, in particular to an adjustable waist support device for office chairs. Background technique [0002] Office chairs refer to various chairs equipped for the convenience of work in daily work and social activities. OfficeMate divides office chairs into narrow and broad senses. Office chairs in the narrow sense refer to the back chairs that people sit on when they are sitting in a sitting position. Office chairs in the general sense refer to all chairs used in the office, including executive chairs, middle chairs Class chairs, meeting chairs, staff chairs, conference chairs, visitor chairs, training chairs, etc. From the perspective of material composition, it can be divided into: leather office chairs, PU leather office chairs, cloth office chairs, mesh office chairs, plastic office chairs, etc. From the use type, it can be divided into: boss chairs, work chairs, staff chairs, executive cha...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an adjustable lumbar support device for office chairs to solve the problem that the existing office chairs have low functionality and cannot support the waist well, resulting in poor riding comfort, and the current Some lumbar support devices are fixed on the seat, and the support cannot be adjusted according to the user's sitting posture, which reduces the comfort of the lumbar support

Images