Multifunctional chair

Abstract

The invention discloses a multifunctional chair which comprises a back supporting piece, a seat supporting piece, a supporting frame and a transmission rod. A connecting rod mechanism is arranged between the back supporting piece and the supporting frame, and the back supporting piece can tilt relative to the supporting frame through the connecting rod mechanism. A rotating supporting rod which enables the seat supporting piece to be lifted upwards relative to the supporting piece is arranged between the rear end of the seat supporting piece and the supporting frame; a sliding guide mechanism is correspondingly arranged between the front end of the seat supporting piece and the supporting frame; and one end of the transmission rod is hinged to the back supporting piece or the connecting rod mechanism, and the other end of the transmission rod is hinged to the seat supporting piece or the rotating supporting rod. The back supporting piece tilts to drive the transmission rod to move, and then the transmission rod drives the seat supporting piece to be synchronously lifted relative to the supporting frame. A locking mechanism is arranged in the sliding guide mechanism; and under the action of the locking mechanism, the seat supporting piece can be lifted up relative to the supporting frame and stay at any lifting position, and the back supporting piece stays at the corresponding tipping position.

Description

technical field [0001] The invention relates to the field of seats, in particular to a multifunctional seat. Background technique [0002] As an indispensable tool for home life and office environment, chairs not only have higher and higher comfort requirements when using chairs in home life, but even the office environment has an impact on the comfort and operability of chairs under the premise of work efficiency. Obvious upgrade requirements. [0003] At present, many seats have not studied the human-machine size matching relationship between the backrest and the seat surface. When the user is reclining, the seat backrest, especially the lumbar support, is separated from the waist of the human body, and the two directly form a suspension gap, resulting in the reclining state. The seat loses support for the human waist, which is what we commonly call "running the waist". The lack of effective support for the human spine leads to many health problems caused by sedentary sit...

AI Technical Summary

Problems solved by technology

[0003] At present, many seats have not studied the human-machine size matching relationship between the backrest and the seat surface. When the user is reclining, the seat backrest, especially the lumbar support, is separated from the waist of the human body, and the two directly form a suspension gap, resulting in the reclining state. The seat loses support for the human waist, which is what we commonly call "running the waist". The lack of effective support for the human spine leads to many health problems caused by sedentary sitting, and the rest cannot be well relaxed; at the same time, the user is reclining. , the buttocks and the seat surface are relatively fixed, while the seat back rubs upward against the back of the human body, causing the discomfort of "rubbing the back and pulling clothes" and also causing an unsightly appearance

These two points are what we often call the "back rubbing and waist running" of the seat; in order to solve this problem, some existing chair back and seat linkage chairs move synchronously to eliminate the seat back when the seat back is tilted. However, there are still many deficiencies in this type of seat in the prior art: first, the seat back can only be positioned at two angles, vertical and inclined, and cannot be positioned at any angle in between. Second, the adjustment method is inconvenient or the mediation mechanism is relatively complicated

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