Structurally improved sofa chair frame

Abstract

The invention discloses a structurally improved sofa chair frame, which comprises an underframe structure, a leg structure, a back structure and a driving device, and also comprises a linkage mechanism, wherein the two ends of the linkage mechanism are respectively connected with the leg structure and the back structure, and the linkage mechanism comprises a leg rotating rod, a linkage rod, a back rotating rod and an oscillating rod; one end of the leg rotating rod is connected with the leg structure, and the other end of the leg rotating rod is connected with the linkage rod; one end of the back rotating rod is connected with the back structure, and the other end of the back rotating rod is connected with the oscillating rod; one end of the linkage rod is connected with the oscillating rod through a rotating shaft, and the other end of the linkage rod is connected with the oscillating rod through a connecting rod structure. The linkage mechanism as well as the leg structure and the back structure can be regulated by connecting the linkage rod with the oscillating rod through the rotating shaft arranged at one end of the linkage rod, therefore, the sofa chair frame has the advantages of simple structure, convenience in assembly, effective simplification in technological process, raw material saving, great reduction in production cost.

Description

technical field [0001] The invention relates to the technical field of sofa chair skeletons, in particular to a sofa chair frame with improved structure. Background technique [0002] Sofas are currently applicable to various areas of people's lives, such as offices, living rooms, bedrooms, and outdoors. With the development of the economy, people use more and more types of furniture in their daily life, and people have higher and higher requirements for the functions of furniture. For example, liftable sofas, rotatable sofas, leisure sofa chairs suitable for the elderly, etc., are more and more favored by people because of their diversified functions, convenient use, comfort and health. The above-mentioned different types of sofas can not only achieve the use functions of the traditional sofa, but also the above-mentioned sofa types can be flexibly adjusted according to the user's use requirements, so as to better meet the different use requirements of the users. [0003]...

AI Technical Summary

Problems solved by technology

The more functions, the higher the reliability requirements of the transmission mechanism and the support mechanism. In order to achieve more functions and meet the reliability requirements of the existing sofa chassis, the internal mechanism structure used is complicated, the assembly process is complicated, and the cost is expensive; especially It is aimed at sofas that can stretch the legs and back at the same time. It mainly needs to adjust the mechanism of the legs and back, so that the functions of lying flat and assisting standing can be realized. Therefore, the legs and back need to be stretched and contracted. The existing ones can be stretched at the same time The internal transmission mechanism and support mechanism of the sofa chair frame on the legs and back are relatively complicated, and the above-mentioned internal mechanisms are usually exposed, which affects the overall shape and reduces the service life, greatly reducing the user experience

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