Mechanical extension device for ejecting headrest of sofa

Abstract

The invention provides a mechanical extension device for ejecting the headrest of a sofa, and belongs to the technical field of sofas. The mechanical extension device for ejecting the headrest of the sofa comprises a frame, the frame comprises a left frame plate, a lower frame plate, a right frame plate and an upper frame plate which are sequentially connected end to end, a fixed plate is fixed between the left frame plate and the right frame plate, the fixed plate is provided with a driving motor, a left mounting sheet is arranged at the inner side of the left frame plate, a right mounting sheet is arranged at the inner side of the right frame plate, a headrest moving support which can rotate relative to the frame is arranged between the left mounting sheet and the right mounting sheet, the headrest moving support is detachably fixedly provided with a rotating rod, the rotating rod is positioned above the fixed plate, and the rotating rod is connected to the driving end of the driving motor. The mechanical extension device has the advantages of realization of the extension and the reset of the headrest in the sofa, simple principle and convenience in operation.

Description

technical field [0001] The invention belongs to the technical field of sofas, and relates to a mechanical stretching device, in particular to a mechanical stretching device pushed out by the head in a sofa. Background technique [0002] A sofa is an upholstered chair that can be a single seat or multiple seats. In people's daily life, the sofa has become a very common piece of furniture. Compared with the old wooden seats, the existing cloth or leather sofas can provide people with more comfort. With the continuous improvement of people's living standards, people's requirements for furniture are getting higher and higher, and ordinary sofas with single functions will be gradually abandoned by people. [0003] In order to make the function of the sofa more perfect and the adjustment performance more flexible, the headrest in the sofa can be separately set to adjust its protruding displacement and reset. At present, there are still many problems in the structural design of t...

AI Technical Summary

Problems solved by technology

At present, there are still many problems in the structural design of the headrest, such as: 1. The electric drive structure of the headrest and backrest is too complicated, which affects the kinetic energy efficiency of the motor; 2. The motor needs to use bolts, nuts and The positioning pins fix it at the same time, which makes the installation of the motor complicated and affects the assembly efficiency of the sofa

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