Sofa with adjustable hardness

Abstract

The utility model discloses a soft and hard adjustable sofa, which relates to the field of sofas, and has the technical scheme that the soft and hard adjustable sofa comprises a sofa body, a cushion part and a backrest part are arranged on the sofa body, cushion bodies are arranged on the cushion part and the backrest part, and each cushion body comprises an expandable soft elastic layer, a middle elastic layer and a hard elastic layer. Bending parts are arranged among the soft elastic layer, the middle elastic layer and the hard elastic layer, and the soft elastic layer, the middle elastic layer and the hard elastic layer can be randomly arranged and stacked and are kept in a stacked state through fixing assemblies. Different requirements of the cushion body can be met by adjusting the sequence of layers, a soft sitting feeling mode, a hard supporting mode and the like can be achieved, the soft elastic layer is moved to the uppermost layer so that a user can feel caught in the cushion body, the cushion body has good wrapping performance, the hard elastic layer is moved to the uppermost layer so that good supporting can be provided, deformation is not prone to occurring, and the cushion body is suitable for the user to lie down. And in conclusion, the device has better applicability and can be adjusted according to personalized requirements of users.

Description

Technical Field

[0001] This utility model relates to the field of sofas, and more specifically, to a sofa with adjustable firmness. Background Technology

[0002] A sofa is a piece of furniture typically used for sitting or reclining indoors, especially in living rooms or relaxation areas. It usually consists of a long seat and cushions, accommodating multiple people.

[0003] In existing technology, the softness and firmness of sofa cushions are selected when purchasing the sofa, and the softness and firmness are fixed during later use. However, everyone's needs for the comfort of a sofa are different, and people in different states also have different needs for the comfort of a sofa, which cannot meet personalized needs.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sofa with adjustable firmness.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable sofa includes a sofa body, on which a seat cushion and a backrest are provided. Both the seat cushion and the backrest are provided with a pad. The pad includes an expandable soft elastic layer, a medium elastic layer, and a hard elastic layer. A bending portion is provided between the soft elastic layer, the medium elastic layer, and the hard elastic layer. The soft elastic layer, the medium elastic layer, and the hard elastic layer can be arranged and stacked arbitrarily and are kept in a stacked state by a fixing component.

[0007] The present invention is further configured such that: the fixing component includes a strap, one end of which is fixed to a bend, and the other end of which is provided with a buckle hole; and the end of the strap fixed to the bend is provided with a fixing buckle that matches the buckle hole.

[0008] The present invention is further configured such that: the strap is an elastic strap, and in its natural state, the length of the strap is 90% to 95% of the perimeter of the soft elastic layer, the medium elastic layer and the hard elastic layer when they are stacked.

[0009] The present invention is further configured such that: the pad body also includes a protective sleeve, the protective sleeve is used to accommodate the soft elastic layer, the medium elastic layer and the hard elastic layer in the stacked state, and the protective sleeve is provided with a plurality of ventilation holes.

[0010] The present invention is further configured such that: the soft elastic layer, the medium elastic layer, and the hard elastic layer are connected by connecting cloth blocks, and gaps are provided between the soft elastic layer, the medium elastic layer, and the hard elastic layer, and the bending part is formed by the connecting cloth blocks in the gaps.

[0011] The present invention is further configured such that the soft elastic layer, the medium elastic layer, and the hard elastic layer are all made of polyurethane foam, and the softness and hardness of the soft elastic layer, the medium elastic layer, and the hard elastic layer are formed by adjusting the density of the polyurethane foam.

[0012] In summary, this utility model has the following beneficial effects:

[0013] The cushion in this invention can meet different needs by adjusting the layer sequence, such as a soft sitting mode and a hard support mode. Moving the soft elastic layer to the top layer can make people feel sink in and provide good wrapping. Moving the hard elastic layer to the top layer can provide better support, is not easily deformed, and is suitable for users to lie down. In summary, this invention has better applicability and can be adjusted according to the user's personalized needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the soft elastic layer, the medium elastic layer, and the hard elastic layer in this utility model;

[0015] Figure 2 This is a structural diagram of the soft elastic layer, the medium elastic layer, and the hard elastic layer of this utility model when they are wrapped with a protective sheath.

[0016] In the diagram: 1. Soft elastic layer; 2. Medium elastic layer; 3. Hard elastic layer; 4. Bending section; 5. Button hole; 6. Fastening buckle; 7. Protective sleeve; 8. Connecting fabric piece. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example:

[0019] Layered structure of the cushion

[0020] Soft elastic layer 1: Made of polyurethane foam with a density of 30 kg / m³ and a thickness of 5 cm, with a wavy texture on the surface to increase the fit.

[0021] Intermediate layer 2: Made of polyurethane foam with a density of 50 kg / m³, 5 cm thick, and with a smooth surface.

[0022] Hard elastic layer 3: Made of polyurethane foam with a density of 80 kg / m³, 5 cm thick, and with a smooth surface.

[0023] Connecting piece 8: Made of elastic nylon fabric, it connects the edges of adjacent layers to form a 5 cm long gap, allowing each layer to be bent along the gap.

[0024] A sofa with adjustable firmness, such as Figure 1As shown, the above-mentioned technical objective of this utility model is achieved through the following technical solution: The adjustable sofa includes a sofa body, on which a seat cushion and a backrest are provided. Both the seat cushion and the backrest are provided with a pad. The pad includes an expandable soft elastic layer 1, a medium elastic layer 2, and a hard elastic layer 3. A bending part 4 is provided between the soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3. The soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3 can be arranged and stacked arbitrarily and are kept in a stacked state by a fixing component.

[0025] The fastening component includes a strap, one end of which is fixed to a bend 4, and the other end is provided with a buckle hole 5. The end of the strap fixed to the bend 4 is provided with a fastening buckle 6 that matches the buckle hole 5.

[0026] Different needs can be met by adjusting the layer sequence of the cushion:

[0027] Soft seat mode: Place the soft elastic layer 1 on the top, the medium elastic layer 2 in the middle, and the hard elastic layer 3 as the bottom layer.

[0028] Hard support mode: Flip the hard elastic layer 3 to the top, place the medium elastic layer 2 in the center, and use the soft elastic layer 1 as the bottom layer.

[0029] Hybrid mode: The order of the three layers can be arbitrarily changed to meet the user's needs.

[0030] The strap is an elastic strap. In its natural state, the length of the strap is 90% of the circumference of the soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3 when they are stacked. One end of the strap is fixed to the bent part 4 of the soft elastic layer 1, and the other end is provided with a metal fastener 6. The bent part 4 at the corresponding position is provided with a buckle hole 5.

[0031] When the three layers are stacked, the straps wrap around the pad and are locked in place by the fasteners 6 and the buckles 5. The elastic straps' contraction force makes each layer fit together tightly.

[0032] The pad also includes a sheath 7, which is used to accommodate the soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3 in a stacked state. The sheath 7 has several ventilation holes, which can prevent the soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3 from getting dirty. The ventilation holes can smoothly discharge air when the soft elastic layer 1, the medium elastic layer 2, and the hard elastic layer 3 are compressed.

[0033] The soft elastic layer 1, medium elastic layer 2, and hard elastic layer 3 are connected by connecting cloth 8. There are gaps between the soft elastic layer 1, medium elastic layer 2, and hard elastic layer 3. The bending part 4 is formed by the connecting cloth 8 in the gaps.

[0034] The soft elastic layer 1, medium elastic layer 2, and hard elastic layer 3 are all made of polyurethane foam. The softness and hardness of the soft elastic layer 1, medium elastic layer 2, and hard elastic layer 3 are formed by adjusting the density of the polyurethane foam.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sofa with adjustable hardness, comprising a sofa body, a cushion part and a backrest part are arranged on the sofa body, and a cushion is arranged on each of the cushion part and the backrest part, characterized in that: The cushion body comprises a soft elastic layer (1), a medium elastic layer (2), and a hard elastic layer (3), and a bending part (4) is arranged between the soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3).

2. The softness-adjustable sofa according to claim 1, wherein: The fixing assembly comprises a belt, one end of the belt is fixed on a bending part (4), and the other end of the belt is provided with a buckle hole (5), and the end of the belt fixed on the bending part (4) is provided with a fixing buckle (6) matched with the buckle hole (5).

3. The softness-adjustable sofa according to claim 2, wherein: The belt is an elastic belt, and the length of the belt in a natural state is 90%-95% of the circumference of the soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3) in a stacked state.

4. The softness-adjustable sofa of claim 1, wherein: The cushion body further comprises a sheath (7) for accommodating the soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3) in a stacked state, and a plurality of air holes are formed in the sheath (7).

5. The softness-adjustable sofa of claim 1, wherein: The soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3) are connected through a connecting cloth block (8), and gaps are arranged between the soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3), and the bending part (4) is formed by the connecting cloth block (8) at the gaps.

6. The softness-adjustable sofa of claim 1, wherein: The soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3) are all made of polyurethane foam, and the softness and hardness of the soft elastic layer (1), the medium elastic layer (2), and the hard elastic layer (3) are formed by adjusting the density of the polyurethane foam.

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