Sofa backrest connecting device

Abstract

The invention relates to a sofa backrest connecting device which comprises a fixed seat fixed on a sofa, a connecting rod and a backrest fastening seat, wherein one end of the connecting rod is inserted and connected on the fixed seat, and the backrest fastening seat is articulated at the other end of the connecting rod. The sofa backrest connecting device is characterized in that the fixed seat comprises a shaft sleeve sheathed on the connecting rod, and a clamping sleeve sheathed on the shaft sleeve; limit flanges are arranged on the inner wall of the shaft sleeve; the connecting rod is provided with a plurality of limit grooves matched with the limit flanges; a gear disk is arranged at the end of the connecting rod connected with the backrest fastening seat; the backrest fastening seatcomprises a fastening piece fixed on a backrest, and a pawl and a clamp spring which are articulated on the fastening piece; and the pawl is matched with the gear disc. The sofa backrest connecting device can be used for simultaneously adjusting the height and the angle of the sofa backrest by a simpler mechanical structure so as to meet multiple using demands and achieving the effect of serving multiple purposes by one article.

Description

technical field [0001] The invention belongs to the field of furniture, in particular to a sofa backrest connecting device. Background technique [0002] As a kind of furniture, sofa plays a very important role in people's life. Whether it is to beautify the home environment or provide people with a comfortable rest environment, it is an indispensable piece of furniture. In home life, no matter people are entertaining or resting at home, they all like to use the soft and comfortable furniture such as sofa. Since different people have different heights, the height of the sofa backrest cannot fully meet the requirements of all people. In addition, the traditional sofa only plays the role of replacing the chair, and the backrest of the sofa chair is fixed on the sofa, and people can only sit and lean on the sofa when using it. If people want to lie down and have a rest, the sofa just cannot play a role , in the modern fast-paced life, people need one thing for multiple purpos...

AI Technical Summary

Problems solved by technology

Since different people have different heights, the height of the sofa backrest cannot fully meet everyone's requirements

In addition, the traditional sofa only plays the role of replacing the chair, and the backrest of the sofa chair is fixed on the sofa, and people can only sit and lean on the sofa when using it. If people want to lie down and have a rest, the sofa just cannot play a role , in the modern fast-paced life, people need one thing for multiple purposes, and the multiple uses of sofas are also problems that need to be solved

Images