Articulated sofa bed with locking structure

Abstract

The invention belongs to the field of sofa beds, and discloses an articulated sofa bed with a locking structure. The sofa bed comprises a sofa cushion and a back cushion hinged to one end of the sofacushion, wherein a hinged foot lapping plate is arranged at the lower end of a sofa frame seat; a frame seat is fixedly mounted on the back side of the foot lapping plate; a back cushion seat drivingassembly comprises an independently arranged back cushion seat driving source and a driving rod provided with an external thread; a threaded sleeve sleeves one end of the driving rod; the threaded sleeve is connected with the driving rod in a threaded fit manner; a back cushion seat driving source is used for driving a turntable to rotate; when the foot lapping plate rotates to a horizontal state,the foot lapping plate is used for lapping feet or enabling a child to get out of the bed conveniently at the moment, meanwhile, the back cushion seat driving source and the threaded sleeve are in arelatively independent state, when a switch of the back cushion seat driving source is touched by mistake at the moment, the relative position between the sofa frame seat and the back cushion seat isalso kept fixed, and the overall safety of the hinged sofa bed is guaranteed.

Description

technical field [0001] The invention belongs to the field of sofa beds, and in particular relates to a hinged sofa bed with a locking structure. Background technique [0002] The sofa bed includes a seat frame and a back frame. The two ends of the seat frame and the back frame are connected by movable joints at the two ends of the adjoining side. In the sofa state, when the seat frame is turned up, the back frame will rotate together with the seat frame. During actual use , This type of sofa bed is easy to be operated by children intentionally or unintentionally, resulting in the transition from sofa to bed, so that the child may be stuck by the back of the sofa and cause injury. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a hinged sofa bed with a locking structure, which solves the technical problems raised by the background art. [0004] The purpose of the present invention can be achi...

AI Technical Summary

Problems solved by technology

[0002] The sofa bed includes a seat frame and a back frame. The two ends of the seat frame and the back frame are connected by movable joints at the two ends of the adjacent side. In the state of the sofa, when the seat frame is turned up, the back frame will rotate together with the seat frame. , this type of sofa bed is easy to be operated by children intentionally or unintentionally, resulting in the transition from the sofa to the bed, so that the child may be stuck by the back of the sofa and cause injury

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