Hidden sofa capable of adjusting hardness of cushion

Abstract

The invention relates to the technical field of furniture and discloses a hidden sofa capable of adjusting the hardness of a cushion. The hidden sofa includes a sofa seat, wherein through holes are formed in two sides of the upper end of the sofa seat; a rotating shaft is mounted in the through hole; the rotating shaft is of a threaded shaft structure; a clamping block is mounted at one end of theouter side of the rotating shaft through internal threads; a plurality of rotating teeth are arranged on a non-internal thread hole surface at one end of the inner side of each clamping block; a rotating seat is mounted at one end inside the rotating shaft; fixed teeth matched with the rotating teeth are arranged on the area, corresponding to the through hole, of one end of the outer side of therotating seat; an upper moving plate and a lower moving plate are installed between the upper end and the lower end of the inner side of the rotating base, hard sofa layers are arranged on the upper sides of the upper moving plate and the lower moving plate, soft sofa layers are arranged on the lower sides of the upper moving plate and the lower moving plate, and sliding columns are installed in the middles of the two ends of the upper moving plate and the lower moving plate. According to the sofa, the softness and hardness of the surface of the sofa can be quickly adjusted, the adjusted softness and hardness can be effectively kept through the clamping blocks, and meanwhile, a stepped structure is formed on the surface of the whole sofa.

Description

technical field [0001] The invention relates to the technical field of furniture, in particular to a concealed sofa with adjustable cushion softness. Background technique [0002] Sofa, as a kind of furniture in daily life, is widely used in various places such as homes and offices, and has a large amount of use. Now the sofas on the market are mainly composed of compression springs, steel mesh and Sponge composition, such a sofa is provided with a support spring on the wooden frame, the support spring is wrapped and supported, and then wrapped with a thin sponge, and the inside of the seat cushion is also composed of a steel wire spring wrapped with a sea surface. [0003] The sofa can be used for sitting or lying down. When sitting on the sofa, the softer sofa is more comfortable. When lying on the sofa, lying on a soft sofa for a long time will easily cause spinal discomfort, especially for older people and those with poor health. This is especially true for people who a...

AI Technical Summary

Problems solved by technology

[0003] The sofa can be used for sitting or lying down. When sitting on the sofa, the softer sofa is more comfortable. When lying on the sofa, lying on a soft sofa for a long time will easily cause spinal discomfort, especially for older people and those with poor health. This is especially true for people who are uncomfortable, but the softness and hardness of the existing sofas are constant, and the softness and hardness of the sofa cannot be adjusted according to actual needs

[0004] Chinese patent (publication number: CN210446319U) discloses a sofa with adjustable cushion softness, including a frame, the top of the inner wall of the frame is fixedly connected with the top of the outer surface of the sofa cushion, and a card slot is opened at the bottom of the side of the frame , the inner wall of the card slot is fixedly connected with an air pump, the air outlet of the air pump is fixedly communicated with one end of the air guide tube, the other end of the air guide tube runs through the frame outer air bag and the inner air bag in turn, and the inner air bag is fixedly connected to the outer air bag The middle part of the top of the inner airbag is fixedly connected with an exhaust pipe, the outer surface of the exhaust pipe is fixedly connected with a solenoid valve, the top of the inner airbag is fixedly connected with a supporting airbag, and the top of the outer airbag is connected with the airbag. The bottom of the sofa cushion is attached, and the top of the outer airbag is provided with a vent hole, and the top of the inner wall of the vent hole is fixedly connected with a filter screen. Although the device can realize the adjustment of the sofa softness to a certain extent, but After the sofa is adjusted, it cannot effectively achieve the effect of maintaining the fixation, and the sofa cannot form a stepped state, which makes it uncomfortable to use. Therefore, further improvement is still needed

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