Zero-gravity sofa iron frame

Abstract

A zero-gravity sofa iron frame, comprising: a support base (1); an iron frame body (2), the iron frame body (2) being hinged to the support base (1); a backrest assembly (3), the backrest assembly (3) being hinged to the iron frame body (2); a leg extension assembly (4), the leg extension assembly (4) being hinged to the iron frame body (2); and a main driving member (5), the main driving member (5) being configured to adjust the hinge angle between the iron frame body (2) and the support base (1), and the main driving member (5) adjusting the hinge angle between the iron frame body (2) and the support base (1) within the range of 6° to 25°.

Description

Zero-gravity sofa iron frame TECHNICAL FIELD

[0001] The present application relates to the technical field of sofa seat iron frame, and particularly relates to a zero-gravity sofa iron frame. BACKGROUND

[0002] With the acceleration of modern life rhythm and the continuous improvement of people's quality of life, the application of ergonomic principles in seat design is increasingly emphasized to improve the comfort and health benefits of users. As one of the best, the zero-gravity seat effectively disperses body pressure by simulating the natural posture of the human body in a zero-gravity environment, reduces fatigue caused by long sitting, and becomes the focus of market attention.

[0003] However, the existing zero-gravity seat and its iron frame structure still has many deficiencies in design. Traditional design often relies on double motors or multi-link mechanisms to achieve independent adjustment of the backrest and the foot, although it can simulate the zero-gravity posture to some extent, but the structure is complex and the number of parts is large, which not only increases the manufacturing cost, but also increases the difficulty of maintenance and installation. At the same time, limited by the structure design, the footboard extension length is generally short, which is difficult to meet the comfortable stretching needs of different users, thereby affecting the overall zero-gravity experience. SUMMARY

[0004] In order to overcome at least one of the deficiencies of the prior art described above, the present application provides a zero-gravity sofa iron frame. The sofa iron frame can be realized to be simple in structure and convenient in zero-gravity adjustment.

[0005] The technical scheme adopted by the present application to solve the problems is:

[0006] A zero-gravity sofa iron frame, comprising: a support base; an iron frame body hinged with the support base; a backrest assembly hinged with the iron frame body; a leg stretching assembly hinged with the iron frame body; and a main drive for adjusting the hinge angle between the iron frame body and the support base, wherein the hinge angle between the iron frame body and the support base is adjusted by the main drive, and the range of the hinge angle is 6-25 degrees.

[0007] By adopting the above scheme, the angle between the iron frame body and the support base is adjusted by the main drive, which reduces the operation difficulty, realizes the zero-gravity adjustment, reduces the complexity of the iron frame body, and at the same time, as the inclination of the iron frame body is adjusted, the leg stretching assembly can continue to extend a distance, and the extension length and height of the leg stretching assembly are increased.

[0008] In some embodiments, the iron stand body comprises: a sofa assembly frame; a first support frame assembled on the sofa assembly frame, the first support frame being hinged to one end of the main drive; and a second support frame assembled on the sofa assembly frame, the first support frame being spaced apart from the second support frame, the second support frame being hinged to the support base.

[0009] By adopting the above scheme, the installation stability of the iron stand body is ensured while the strength of the iron stand body itself is ensured.

[0010] In some embodiments, a leg drive is hinged between the iron stand body and the leg extension assembly, and a backrest drive is hinged between the iron stand body and the backrest assembly.

[0011] By adopting the above scheme, the leg extension assembly and the backrest assembly can be controlled separately, thereby realizing the transition between multiple postures.

[0012] In some embodiments, the first support frame is at least partially bent towards the support base to install a first main drive hinge part hinged to one end of the main drive.

[0013] By adopting the above scheme, the main drive is facilitated to be installed, thereby improving the driving fluency and stability of the main drive.

[0014] In some embodiments, the support base comprises: a sofa foot; a base hinge part assembled above the sofa foot, the iron stand body being hinged to the base hinge part; and a second main drive hinge part connected to the base hinge part, the other end of the main drive being hinged to the second main drive hinge part.

[0015] By adopting the above scheme, through the arrangement of the main drive, the leg drive and the backrest drive, the user can easily adjust the leg extension angle and the backrest inclination of the sofa, thereby customizing the adjustment according to the personal comfort and use requirements. Such flexibility not only improves the user experience, but also increases the multifunctionality of the sofa.

[0016] In some embodiments, the leg stretching assembly comprises a first adjusting rod, a second adjusting rod, a third adjusting rod, a fourth adjusting rod, and a footrest linkage set, the rear end of the first adjusting rod is hinged to the frame body, the front end of the first adjusting rod is hinged to the rear end of the second adjusting rod, the front end of the second adjusting rod is hinged to the footrest linkage set, the rear end of the third adjusting rod is hinged to the frame body, the front end of the third adjusting rod is hinged to the rear end of the fourth adjusting rod, and the front end of the fourth adjusting rod is hinged to the footrest linkage set; wherein the middle part of the second adjusting rod is hinged to the middle part of the third adjusting rod.

[0017] By adopting the above scheme, the stability of the leg stretching assembly during stretching is ensured. The hinge between the middle part of the second adjusting rod and the middle part of the third adjusting rod provides a stable support point for the entire assembly, preventing shaking or deformation during stretching.

[0018] In some embodiments, the leg stretching assembly is provided with two sets, and a leg synchronization rod is arranged between the two sets, and a leg driving member is arranged between the leg synchronization rod and the second support frame.

[0019] By adopting the above scheme, the two sets of leg stretching assemblies can be adjusted simultaneously and synchronously, ensuring the consistency of the support of the two sides of the legs, avoiding the situation that one side is high and the other side is low during adjustment, and thus improving the user's experience.

[0020] In some embodiments, the backrest assembly comprises a backrest support rod, the front end of the backrest support rod is connected to the frame body, and a backrest piece is hinged to the rear end of the backrest support rod.

[0021] By adopting the above scheme, the inclination angle of the backrest can be adjusted according to personal preferences and comfort requirements to obtain the best back support effect.

[0022] In some embodiments, the backrest assembly is provided with two sets, and a backrest synchronization rod is arranged between the two sets, and a backrest driving member is arranged between the backrest synchronization rod and the second support frame.

[0023] By adopting the above scheme, the backrest synchronization rod ensures that the two sets of backrest assemblies can be adjusted synchronously, not only improving the appearance, stability, and use efficiency of the sofa, but also enhancing the comfort and personalized experience of the user.

[0024] In some embodiments, the second support frame comprises: a first side plate connected with the sofa assembly frame; a second side plate connected with the sofa assembly frame; a first support rod connected between the first side plate and the second side plate; and a second support rod connected between the first side plate and the second side plate, wherein the first side plate and the second side plate are parallel, and the first support rod and the second support rod are parallel.

[0025] By adopting the above scheme, the first side plate and the second side plate are beneficial to the assembly and connection of the support frame and the sofa skin. Since the structure of the support frame is relatively simple and has a high degree of standardization, the manufacturing process is relatively easy to control. At the same time, the standardized components and connection mode also reduce the installation difficulty and cost. This makes the manufacturing and assembly process of the entire sofa more efficient and economical.

[0026] In summary, the zero-gravity sofa iron frame provided by the present application has the following technical effects:

[0027] 1. Simplify structure and reduce cost: The design uses a single main drive to adjust the angle between the iron frame body and the support base to achieve zero-gravity adjustment. This simplified design not only reduces manufacturing costs, but also reduces the number of parts, thereby reducing maintenance and installation difficulty.

[0028] 2. Convenient adjustment and improve user experience: Users can easily achieve zero-gravity adjustment of the sofa by operating the main drive without complex operation steps or multiple control units. This convenient adjustment method not only improves user experience, but also enables the sofa to better adapt to the use needs of different users.

[0029] 3. Enhance leg stretching effect: With the adjustment of the angle between the iron frame body and the support base, the leg stretching assembly can be extended forward, thereby increasing the stretching length and height. This design can better meet the needs of different users for comfortable leg stretching, improving the overall zero-gravity experience.

[0030] 4. Improve comfort and health benefits: The zero-gravity sofa simulates the natural posture of the human body in a zero-gravity environment, effectively distributing body pressure and reducing fatigue caused by prolonged sitting. This design helps improve user comfort and may have a positive impact on preventing and improving health problems related to prolonged sitting. BRIEF DESCRIPTION OF DRAWINGS

[0031] FIG. 1 is a perspective view of an embodiment of the present application;

[0032] FIG. 2 is a top view of an embodiment of the present application;

[0033] FIG. 3 is a side view of an embodiment of the present application;

[0034] Fig. 4 is a schematic diagram of the iron stand main body structure of the embodiment of the present application;

[0035] Fig. 5 is a schematic diagram of the support base structure of the embodiment of the present application;

[0036] Fig. 6 is a schematic diagram of the support base and support base assembly structure of the embodiment of the present application.

[0037] In the drawings, the reference signs have the following meanings: 1, support base; 11, sofa foot; 12, base hinge; 13, second main drive hinge part; 14, second hinge piece; 2, iron stand main body; 21, sofa assembly frame; 22, first support frame; 221, first main drive hinge part; 23, second support frame; 231, first side plate; 232, second side plate; 233, first support rod; 234, second support rod; 235, first hinge piece; 3, backrest assembly; 31, backrest support rod; 32, backrest piece; 33, backrest synchronization rod; 4, leg stretching assembly; 41, first adjusting rod; 42, second adjusting rod; 43, third adjusting rod; 44, fourth adjusting rod; 45, footrest connecting rod set; 46, leg synchronization rod; 5, main drive; 6, leg drive; 7, backrest drive. Embodiments of the present application

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present application will be described and discussed in detail below in combination with the drawings of the present application. Obviously, only some examples of the present application are described here, and all other examples obtained by those skilled in the art based on the embodiments in the present application without creative labor fall within the protection scope of the present application.

[0039] For the convenience of understanding the embodiments of the present application, the following will be further explained and described in specific embodiments in combination with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present application.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0042] Embodiment 1 of the present application is shown in FIG. 1-6, which discloses a zero-gravity sofa frame, comprising a support base 1, a frame body 2, a backrest assembly 3, a leg stretching assembly 4 and a main drive 5, the frame body 2 is hinged with the support base 1, the backrest assembly 3 is hinged with the frame body 2, the leg stretching assembly 4 is hinged with the frame body 2, and the main drive 5 is used to adjust the hinge angle between the frame body 2 and the support base 1, the range of the hinge angle between the frame body 2 and the support base 1 adjusted by the main drive 5 is 6°-25°, the angle between the frame body 2 and the support base 1 is adjusted by the main drive 5, which reduces the operation difficulty, realizes the zero-gravity adjustment, reduces the complexity of the frame body 2, and at the same time, as the inclination of the frame body 2 is adjusted, the leg stretching assembly 4 can continue to extend a distance forward, which increases the extension length and height of the leg stretching assembly 4.

[0043] Specifically, in the present embodiment 1, the frame body 2 comprises a sofa assembly frame 21, a first support frame 22 and a second support frame 23, the sofa assembly frame 21 is a rectangular frame, which is used to install a sofa cushion, the first support frame 22 is closer to the front than the second support frame 23, i.e. closer to the leg stretching assembly 4, the first support frame 22 is assembled below the sofa assembly frame 21, the first support frame 22 is hinged with one end of the main drive 5, the second support frame 23 is assembled below the sofa assembly frame 21, and the first support frame 22 and the second support frame 23 are arranged in a spaced manner, and the second support frame 23 is hinged with the support base 1. While ensuring the strength of the frame body 2 itself, the installation stability of the frame body 2 is ensured. In some embodiments, the first support frame 22 is at least partially bent towards the direction of the support base 1 to install a first main drive hinge part 221 hinged with one end of the main drive 5, which facilitates the installation of the main drive 5, so as to improve the driving fluency and stability of the main drive 5.

[0044] In order to improve the hinge stability of the second support frame 23 and the support base 1 and the self-support stability of the support base 1, the second support frame 23 comprises a first side plate 231, a second side plate 232, a first support rod 233 and a second support rod 234, the first side plate 231 and the second side plate 232 are connected with the sofa assembly frame 21, the first support rod 233 and the second support rod 234 are connected between the first side plate 231 and the second side plate 232, the first side plate 231 and the second side plate 232 are parallel, and the first support rod 233 and the second support rod 234 are parallel. At least two first hinge plates 235 are arranged below the first support rod 233 and the second support rod 234, the support base 1 comprises a sofa foot 11 and a base hinge 12, the base hinge 12 is assembled above the sofa foot 11, the iron stand body 2 is hinged with the base hinge 12, specifically, the main body of the base hinge 12 has an axle hole, the shaft center of the sofa foot 11 passes through the axle hole and is fixed with the base hinge 12, at least two second hinge plates 14 are arranged on the base hinge 12 and are hinged with the first hinge plates 235, and the first hinge plates 235 and the second hinge plates 14 correspond to each other; a second main drive hinge part 13 is further arranged on the front side of the base hinge 12, and the other end of the main drive 5 is hinged with the second main drive hinge part 13.

[0045] In the embodiment 1, the sofa foot 11 adopts a star-shaped seat foot without wheels, of course, in other embodiments, a seat foot with wheels can also be adopted, and the shape is not limited to star-shaped.

[0046] The iron stand body 2 is hinged with the leg stretching assembly 4 through a leg drive 6, and the iron stand body 2 is hinged with the backrest assembly 3 through a backrest drive 7, so that the leg stretching assembly 4 and the backrest assembly 3 can be controlled independently, thereby realizing the transition between multiple postures. Specifically, in the embodiment 1, the front end of the backrest drive 7 is hinged with the middle part of the first support rod 233, and the rear end of the backrest drive 7 is hinged with the backrest assembly 3; the front end of the leg drive 6 is hinged with the leg stretching assembly 4, and the rear end of the leg drive 6 is hinged with the middle part of the second support rod 234, and the leg drive 6 is arranged separately from the backrest drive 7, so that the two do not affect each other and are independently driven.

[0047] The leg stretching assembly 4 comprises a first adjusting rod 41, a second adjusting rod 42, a third adjusting rod 43, a fourth adjusting rod 44 and a foot rest connecting rod set 45, the rear end of the first adjusting rod 41 is hinged to the iron stand body 2, the front end of the first adjusting rod 41 is hinged to the rear end of the second adjusting rod 42, the front end of the second adjusting rod 42 is hinged to the foot rest connecting rod set 45, the rear end of the third adjusting rod 43 is hinged to the iron stand body 2, the front end of the third adjusting rod 43 is hinged to the rear end of the fourth adjusting rod 44, and the front end of the fourth adjusting rod 44 is hinged to the foot rest connecting rod set 45; wherein the middle part of the second adjusting rod 42 and the middle part of the third adjusting rod 43 are hinged, which ensures the stability of the leg stretching assembly 4 during stretching. The hinge between the middle part of the second adjusting rod 42 and the middle part of the third adjusting rod 43 provides a stable support point for the whole assembly, preventing shaking or deformation during stretching. In some embodiments, the leg stretching assembly 4 is provided with two groups, and a leg synchronization rod 46 is arranged between the two groups, and a leg driving member 6 is arranged between the leg synchronization rod 46 and the second support frame 23, so that the two groups of leg stretching assemblies 4 can be adjusted simultaneously and synchronously, ensuring the consistency of the leg support on both sides, avoiding the situation that one side is higher and the other side is lower during adjustment, thereby improving the user experience.

[0048] The backrest assembly 3 comprises a backrest support rod 31 and a backrest piece 32, the front end of the backrest support rod 31 is connected to the iron stand body 2, and the middle part of the backrest piece 32 is hinged to the rear end of the backrest support rod 31. The inclination angle of the backrest can be adjusted according to individual preferences and comfort requirements to achieve the best back support effect. Similarly, the backrest assembly 3 is provided with two groups, and a backrest synchronization rod 33 is arranged between the two groups, and a backrest driving member 7 is arranged between the backrest synchronization rod 33 and the second support frame 23. The backrest synchronization rod 33 ensures that the two groups of backrest assemblies 3 can be adjusted synchronously, not only improving the appearance, stability and use efficiency of the sofa, but also enhancing the comfort and personalized experience of the user.

[0049] During use, the telescopic effect of the leg stretching assembly 4 and the backrest assembly 3 can be adjusted separately through the separate leg driving member 6 and backrest driving member 7, thereby realizing the sitting, lying, TV and sitting-lying states of the seat at all times, and the inclination angle of the iron stand body 2 as a whole can be adjusted through the main driving member 5, so that the user can realize zero-power adjustment during the adjustment of the seat posture conversion, greatly improving the comfort of the seat. It should be noted that the leg driving member 6, the backrest driving member 7 and the main driving member 5 adopt electric push rods, and in other embodiments, other driving devices can also be used, and the present embodiment is not limited in this regard.

[0050] In summary, the zero-gravity sofa iron stand provided by the present application has the following technical effects:

[0051] 1. Simplified structure and reduced cost: The design uses a single main drive 5 to adjust the angle between the iron frame body 2 and the support base 1 to achieve zero-gravity adjustment. This simplified design not only reduces manufacturing costs, but also reduces the number of components, thereby reducing the difficulty of maintenance and installation.

[0052] 2. Convenient adjustment and improved user experience: Users can easily achieve zero-gravity adjustment of the sofa by operating the main drive 5 without complex operation steps or multiple control units. This convenient adjustment method not only improves user experience, but also enables the sofa to better adapt to the use needs of different users.

[0053] 3. Enhanced leg stretching effect: As the angle between the iron frame body 2 and the support base 1 is adjusted, the leg stretching assembly 4 can extend forward, thereby increasing the stretching length and height. This design can better meet the needs of different users for comfortable leg stretching, improving the overall zero-gravity experience.

[0054] 4. Improved comfort and health benefits: The zero-gravity sofa simulates the natural posture of the human body in a zero-gravity environment, effectively distributing body pressure and reducing fatigue caused by prolonged sitting. This design helps improve user comfort and may have a positive impact on preventing and improving health problems related to prolonged sitting.

[0055] The technical means disclosed in the present application scheme are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A zero-gravity sofa frame, comprising: a support base (1); a frame body (2) hinged to the support base (1); a backrest assembly (3) hinged to the frame body (2); a leg extension assembly (4) hinged to the frame body (2); a main drive (5) for adjusting the hinged angle between the frame body (2) and the support base (1), the main drive (5) adjusting the hinged angle between the frame body (2) and the support base (1) in a range of 6°-25°.

2. A zero-gravity sofa frame according to claim 1, wherein, The frame body (2) comprises: a sofa assembly frame (21); a first support frame (22) assembled on the sofa assembly frame (21), the first support frame (22) being hinged to one end of the main drive (5); a second support frame (23) assembled on the sofa assembly frame (21), the first support frame (22) and the second support frame (23) being spaced apart, the second support frame (23) being hinged to the support base (1).

3. A zero-gravity sofa frame according to claim 1 or 2, wherein, The frame body (2) is hinged to the leg extension assembly (4) by a leg drive (6), and the frame body (2) is hinged to the backrest assembly (3) by a backrest drive (7).

4. A zero-gravity sofa frame according to claim 2, wherein, The first support frame (22) is at least partially bent towards the support base (1) to install a first main drive hinge part (221) hinged to one end of the main drive (5).

5. A zero-gravity sofa frame according to claim 1, wherein, The support base (1) comprises: a sofa foot (11); a base hinge (12) assembled above the sofa foot (11), the frame body (2) being hinged to the base hinge (12); a second main drive hinge part (13) connected to the base hinge (12), the other end of the main drive (5) being hinged to the second main drive hinge part (13).

6. A zero-gravity sofa frame according to claim 2, wherein, The leg extension assembly (4) comprises a first adjusting rod (41), a second adjusting rod (42), a third adjusting rod (43), a fourth adjusting rod (44), and a foot rest linkage (45), the rear end of the first adjusting rod (41) being hinged to the frame body (2), the front end of the first adjusting rod (41) being hinged to the rear end of the second adjusting rod (42), the front end of the second adjusting rod (42) being hinged to the foot rest linkage (45), the rear end of the third adjusting rod (43) being hinged to the frame body (2), the front end of the third adjusting rod (43) being hinged to the rear end of the fourth adjusting rod (44), the front end of the fourth adjusting rod (44) being hinged to the foot rest linkage (45); wherein the middle part of the second adjusting rod (42) and the middle part of the third adjusting rod (43) are hinged.

7. A zero-gravity sofa frame according to claim 6 wherein, The leg stretching assembly (4) is provided with two groups, and a leg synchronization rod (46) is arranged between the two groups, and a leg driving member (6) is arranged between the leg synchronization rod (46) and the second support frame (23).

8. A zero-gravity sofa frame according to claim 2, wherein, The backrest assembly (3) comprises: A backrest support rod (31), the front end of the backrest support rod (31) is connected with the iron stand body (2); A backrest piece (32), the middle part of the backrest piece (32) is hinged with the rear end of the backrest support rod (31).

9. A zero-gravity sofa frame according to claim 8, wherein, The backrest assembly (3) is provided with two groups, and a backrest synchronization rod (33) is arranged between the two groups, and a backrest driving member (7) is arranged between the backrest synchronization rod (33) and the second support frame (23).

10. A zero-gravity sofa frame according to claim 2, wherein, The second support frame (23) comprises: A first side plate (231), the first side plate (231) is connected with the sofa assembly frame (21); A second side plate (232), the second side plate (232) is connected with the sofa assembly frame (21); A first support rod (233), the first support rod (233) is connected between the first side plate (231) and the second side plate (232); A second support rod (234), the second support rod (234) is connected between the first side plate (231) and the second side plate (232), wherein the first side plate (231) and the second side plate (232) are parallel, and the first support rod (233) and the second support rod (234) are parallel.

Images