Multi-connecting rod angle adjustment sofa bed

Abstract

The invention discloses a multi-connecting rod angle adjustment sofa bed. The multi-connecting rod angle adjustment sofa bed comprises a backrest, a handrail, a base, a rear pedal plate, a front pedalplate and a steering moving part, connecting rods in the base are driven by pushing forward and pulling back an adjustment rod in the handrail, then the connecting rod slides in a connecting rod groove, the angle is changed through the linkage of the backrest, the front pedal plate and the rear pedal plate, the adjustment rod is located and locked at any angle through a locating part located in the handrail part, so that the sofa bed is located, and the sofa and the bed are moved and steered through universal wheels in the steering moving part. The multi-connecting rod angle adjustment sofa bed has the advantages that the inclination angle of the backrest and the pedal plates can be freely adjusted or simultaneously adjusted, meanwhile, the multi-connecting rod angle adjustment sofa bed has the advantage that the sofa and the bed can be freely moved and steered at a certain angle and the structure of the sofa is stable, reliable and compact, and the multi-connecting rod angle adjustment sofa bed has an extensive application value on the aspects of use and operation.

Description

technical field [0001] The invention relates to a sofa bed, in particular to a multi-link angle-adjustable sofa bed. Background technique [0002] The common sofa bed realizes the adjustment of the backrest angle by adjusting the positions of different card slots, which has the disadvantages of small adjustment range and simple structure. In recent years, there have been some sofa beds that can adjust the backrest and the sofa footrest. The footrest and the backrest can be adjusted at the same time, but they cannot be adjusted separately and continuously. [0003] Publication number is that the patent of CN 104957910A discloses a kind of folding sofa bed, comprises sofa cushion, support, armrest and backrest, and this backrest and mattress can be fixed at the angle between backrest and mattress when bed state and sofa state changeover, but can not Realize multi-angle continuous adjustment. [0004] The patent of publication number CN 106388400A discloses a foldable sofa, i...

AI Technical Summary

Problems solved by technology

[0002] The common sofa bed realizes the adjustment of the backrest angle by adjusting the position of different card slots, which has the disadvantages of small adjustment range and simple structure

In recent years, there have been some sofa beds that can adjust the backrest and sofa footrest. The footrest and the backrest can be adjusted at the same time, but they cannot be adjusted separately and continuously.

[0003] Publication number is that the patent of CN 104957910A discloses a kind of folding sofa bed, comprises sofa cushion, support, armres

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