Sitting/lying chair provided with movement locking device as well as main structure of sitting/lying sofa

Abstract

The invention discloses a sitting / lying chair provided with a movement locking device as well as a main structure of a sitting / lying sofa. The sitting / lying chair comprises a back component, a seat component, a frame component and a movement locking device, wherein the movement locking device and an auxiliary support component are arranged on a parallelogram mechanism of the frame component; and seat side parts of the seat component are connected on an upper frame cross member of the frame component in a permanent connection manner or a sliding pair manner. When the gesture is switched from sitting to lying, a user only needs to press a control device for releasing the locking force and exert backward force with the back for enabling the chair back to backwards rotate and producing linkage, so that the seat component is lowered, and the auxiliary support component and the upper body gravity center of the user synchronously move backwards, and the smooth switching from sitting to lyingis realized. When the gesture is switched back to sitting, the control device is pressed again, and the chair resets automatically through the constant force of the movement locking device. Furthermore, the stepless adjustment on the chair from sitting to lying can be safely realized. The sitting / lying chair has the advantage that the motion characteristics of the parallelogram mechanism are perfectly combined with the characteristics of the movement locking device, thereby realizing the product with simple and reasonable structure, low cost, high grade and popular consumers. The sitting / lyingchair relieves dangers caused by long sitting and creates better conditions for various groups of people to take afternoon naps.

Description

Technical field [0001] The invention relates to the technical field of furniture, in particular to a main structure of a sitting chair and a sitting sofa with a movable locking device. Background technique [0002] Social consensus has been reached on the two common daily problems of "the various harms caused by sitting for a long time" and the "all the benefits of a nap". Patent number ZL201721517914.0 "retractable sitting and lying dual-purpose office, study chair" and patent number ZL201820336205.0 "a retractable sitting and lying dual-purpose chair" two technical solutions, try to achieve sitting and lying dual-use The popular consumption of chairs has changed the limitations of the existing recliners, created conditions for efforts to reduce the "hazards caused by sedentary sitting", and created conditions for office workers and students to take a nap. Both of these two technical solutions use the parallelogram mechanism as the main mechanism, and make full use of its motio...

AI Technical Summary

Problems solved by technology

The locking device of the "telescopic sitting and lying dual-purpose office and learning chair", in the process of switching between sitting and lying on the chair, the person stands beside the chair to operate and lock it manually. The structure is relatively complicated and the operation is relatively primitive.

This locking device cannot fully meet the above requirements

The locking device of "a telescopic sitting and reclining chair" realizes the switching process of the chair sitting and lying down, and the person can also stand on the side of the chair to operate, and it can be automatically locked. Its structure is more complicated, and the manufacturing accuracy and assembly requirements relatively high

This locking device can not fully meet the above requirements

In addition, the above two locking devices: ①The parts are basically self-made parts, which are costly and time-consuming; ②Both of them cannot realize the switching operation of sitting and lying on a chair, and cannot realize the unlimited lying position within a certain range. level adjustment and reliable adjustment of seat height; ③ can not be applied to the sofa

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