Zero-gravity sofa iron stand

Abstract

The utility model discloses a zero-gravity sofa iron stand, which comprises a support base, the iron stand main body is hinged to the supporting base; the backrest assembly is hinged to the iron stand main body; the leg stretching assembly is hinged to the iron stand main body; the iron stand main body is used for supporting the iron stand main body, the supporting base is used for supporting the iron stand main body, the main driving part is used for adjusting the hinge angle between the iron stand main body and the supporting base, and the range of the hinge angle between the iron stand main body and the supporting base adjusted by the main driving part is 6-25 degrees. The operation difficulty is reduced, zero-gravity adjustment is achieved, the complexity of the iron stand body is reduced, meanwhile, along with inclination adjustment of the iron stand body, the leg stretching assembly can continue to extend forwards by a certain distance, and the stretching length and height of the leg stretching assembly are increased in a turning mode.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa seat iron frames, in particular to a zero-gravity sofa iron frame. Background Art

[0002] With the acceleration of modern life and the continuous improvement of people's requirements for quality of life, chair design pays more and more attention to the application of ergonomic principles to improve the comfort and health benefits of users. Zero-gravity chairs, as the best among them, effectively disperse body pressure and reduce fatigue caused by sitting for a long time by simulating the natural posture of the human body in a zero-gravity environment, becoming the focus of market attention.

[0003] However, the existing zero-gravity chairs and their iron frame structures still have many design deficiencies. Traditional designs often rely on dual motors or multi-link mechanisms to achieve independent adjustment of the backrest and footrest. Although they can simulate zero-gravity postures to a certain extent, they have complex structures and numerous parts, which not only increases manufacturing costs, but also increases the difficulty of maintenance and installation. At the same time, due to structural design limitations, the footrest extension length is generally short, which makes it difficult to meet the needs of different users for comfortable extension, thus affecting the overall zero-gravity experience. Utility Model Content

[0004] In order to overcome at least one defect of the prior art, the utility model provides a zero-gravity sofa iron frame, which can realize a sofa iron frame with a simple structure and convenient zero-gravity adjustment.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A zero-gravity sofa iron frame, comprising: a support base; an iron frame body, the iron frame body being hinged to the support base; a backrest assembly, the backrest assembly being hinged to the iron frame body; a leg extension assembly, the leg extension assembly being hinged to the iron frame body; and a main driving component, the main driving component being used to adjust the hinge angle between the iron frame body and the support base, the main driving component adjusting the hinge angle between the iron frame body and the support base within a range of 6°-25°.

[0007] By adopting the above scheme, the angle between the iron frame body and the supporting base is adjusted through the main driving component, which reduces the difficulty of operation, realizes zero gravity adjustment, and reduces the complexity of the iron frame body. At the same time, as the inclination of the iron frame body is adjusted, the leg extension assembly can continue to extend forward for a distance, thereby increasing the extension length and height of the leg extension assembly.

[0008] Furthermore, the iron frame body includes: a sofa assembly frame; a first support frame, the first support frame is assembled on the sofa assembly frame, and the first support frame is hinged to one end of the main driving member; a second support frame, the second support frame is assembled on the sofa assembly frame, and the first support frame and the second support frame are spaced apart, and the second support frame is hinged to the support base.

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

[0010] Furthermore, a leg driving component is hinged between the iron frame body and the leg extension assembly, and a backrest driving component is hinged between the iron frame body and the backrest assembly.

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

[0012] Furthermore, the first support frame is at least partially bent toward the support base to mount a first main driving member hinged portion hinged to one end of the main driving member.

[0013] By adopting the above solution, it is easy to install the main driving component, so as to improve the driving smoothness and stability of the main driving component.

[0014] Furthermore, the supporting base includes: a sofa leg; a base hinge, the base hinge is assembled above the sofa leg, and the iron frame body is hinged to the base hinge; a second main driving member hinge part, the second main driving member hinge part is connected to the base hinge part, and the other end of the main driving member is hinged to the second main driving member hinge part.

[0015] By adopting the above solution, through the setting of the main drive member, the leg drive member and the backrest drive member, the user can easily adjust the leg extension angle and the backrest inclination of the sofa, so as to make customized adjustments according to personal comfort and usage needs. This flexibility not only improves the user experience, but also increases the versatility of the sofa.

[0016] Furthermore, the leg extension assembly includes a first adjustment rod, a second adjustment rod, a third adjustment rod, a fourth adjustment rod and a footrest connecting rod group, the rear end of the first adjustment rod is hinged to the iron frame body, the front end of the first adjustment rod is hinged to the rear end of the second adjustment rod, the front end of the second adjustment rod is hinged to the footrest connecting rod group, the rear end of the third adjustment rod is hinged to the iron frame body, the front end of the third adjustment rod is hinged to the rear end of the fourth adjustment rod, and the front end of the fourth adjustment rod is hinged to the footrest connecting rod group; wherein, the middle part of the second adjustment rod is hinged to the middle part of the third adjustment rod.

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

[0018] Furthermore, the leg extension assembly is provided with two groups, and a leg synchronization rod is provided between the two groups, and a leg driving member is provided between the leg synchronization rod and the second supporting frame.

[0019] By adopting the above solution, the two sets of leg extension components can be adjusted simultaneously and synchronously, ensuring the consistency of the leg support on both sides and avoiding the situation where one side is high and the other side is low during the adjustment process, thereby improving the user experience.

[0020] Furthermore, the backrest assembly comprises: a backrest support rod, the front end of which is connected to the iron frame body; and a backrest member, the middle part of which is hinged to the rear end of the backrest support rod.

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

[0022] Furthermore, the backrest assembly is provided with two groups, and a backrest synchronization rod is provided between the two groups, and a backrest driving member is provided between the backrest synchronization rod and the second supporting frame.

[0023] By adopting the above solution, the backrest synchronization rod ensures that the two sets of backrest components can be adjusted synchronously, which not only improves the aesthetics, stability and use efficiency of the sofa, but also enhances the user's comfort and personalized experience.

[0024] Furthermore, the second supporting frame includes: a first side panel, the first side panel is connected to the sofa assembly frame; a second side panel, the second side panel is connected to the sofa assembly frame; a first supporting rod, the first supporting rod is connected between the first side panel and the second side panel; a second supporting rod, the second supporting rod is connected between the first side panel and the second side panel, wherein the first side panel and the second side panel are parallel, and the first supporting rod and the second supporting rod are parallel.

[0025] By adopting the above solution, the first side plate and the second side plate are conducive to the assembly and connection of the support frame and the sofa skin. Since the structure of the support frame is relatively simple and the degree of standardization is high, the manufacturing process is relatively easy to control. At the same time, the standardized components and connection methods also reduce the difficulty and cost of installation. 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 utility model has the following technical effects:

[0027] 1. Simplified structure and reduced 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 the difficulty of maintenance and installation.

[0028] 2. Convenient adjustment and improved user experience: Users can easily adjust the sofa to zero gravity by operating the main drive parts, without complicated operation steps or multiple control units. This convenient adjustment method not only improves the user experience, but also enables the sofa to adapt to the needs of different users more quickly.

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

[0030] 4. Improve comfort and health benefits: Zero-gravity sofas effectively disperse body pressure and reduce fatigue caused by sitting for a long time by simulating the natural posture of the human body in a zero-gravity environment. This design helps to improve the comfort of users and may have a positive impact on preventing and improving health problems related to sitting for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0033] Figure 3 It is a side structural schematic diagram of an embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the main structure of the iron frame of an embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of the support base structure of an embodiment of the utility model;

[0036] Figure 6 It is a schematic diagram of the support base and the support base assembly structure of an embodiment of the utility model.

[0037] The meanings of the reference numerals are as follows: 1. support base; 11. sofa leg; 12. base hinge; 13. second main drive hinge; 14. second hinge plate; 2. iron frame body; 21. sofa assembly frame; 22. first support frame; 221. first main drive hinge; 23. second support frame; 231. first side panel; 232. second side panel; 233. first support rod; 234. second support rod; 235. first hinge plate; 3. backrest assembly; 31. backrest support rod; 32. backrest member; 33. backrest synchronization rod; 4. leg extension assembly; 41. first adjustment rod; 42. second adjustment rod; 43. third adjustment rod; 44. fourth adjustment rod; 45. footrest connecting rod group; 46. leg synchronization rod; 5. main drive; 6. leg drive; 7. backrest drive. DETAILED DESCRIPTION

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] Embodiment 1 of the present utility model is referred to Figure 1-Figure 6As shown, a zero-gravity sofa iron frame is disclosed, including a supporting base 1, an iron frame body 2, a backrest assembly 3, a leg extension assembly 4 and a main driving member 5, wherein the iron frame body 2 is hinged to the supporting base 1, the backrest assembly 3 is hinged to the iron frame body 2, the leg extension assembly 4 is hinged to the iron frame body 2, and the main driving member 5 is used to adjust the hinge angle between the iron frame body 2 and the supporting base 1, and the main driving member 5 adjusts the hinge angle between the iron frame body 2 and the supporting base 1 in the range of 6°-25°. By adjusting the angle between the iron frame body 2 and the supporting base 1 through the main driving member 5, the operation difficulty is reduced, zero gravity adjustment is achieved, and the complexity of the iron frame body 2 is reduced. At the same time, as the inclination of the iron frame body 2 is adjusted, the leg extension assembly 4 can continue to extend forward for a distance, thereby increasing the elongation length and height of the leg extension assembly 4 in a variable direction.

[0043] Specifically, in this embodiment 1, the iron frame body 2 includes 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, that is, closer to the leg extension assembly 4. The first support frame 22 is assembled below the sofa assembly frame 21. The first support frame 22 is hinged to one end of the main drive member 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 at intervals. The second support frame 23 is hinged to the support base 1. While ensuring the strength of the iron frame body 2 itself, the installation stability of the iron frame body 2 is ensured. Preferably, the first support frame 22 is at least partially bent in the direction of the support base 1 to install the first main drive member hinge part 221 hinged to one end of the main drive member 5, which is convenient for installing the main drive member 5 to improve the driving smoothness and stability of the main drive member 5.

[0044] In order to improve the hinge stability between the second support frame 23 and the support base 1 and the self-supporting stability of the support base 1, the second support frame 23 includes a first side panel 231, a second side panel 232, a first support rod 233 and a second support rod 234. The first side panel 231 and the second side panel 232 are connected to the sofa assembly frame 21. The first support rod 233 and the second support rod 234 are both connected between the first side panel 231 and the second side panel 232. The first side panel 231 and the second side panel 232 are parallel, and the first support rod 233 and the second support rod 234 are parallel. At least two first hinged pieces 235 are arranged below the first support rod 233 and the second support rod 234. The support base 1 includes a sofa leg 11 and a base hinge 12. The base hinge 12 is assembled above the sofa leg 11. The iron frame body 2 is hinged to the base hinge 12. Specifically, the body of the base hinge 12 has an axial hole, and the axis of the sofa leg 11 passes through the axial hole and is fixed to the base hinge 12. At least two second hinged pieces 14 hinged to the first hinged pieces 235 are arranged on the base hinge 12, and the first hinged piece 235 corresponds to the second hinged piece 14 one by one. A second main driving member hinge 13 is also arranged on the front side of the base hinge 12, and the other end of the main driving member 5 is hinged to the second main driving member hinge 13.

[0045] In the present embodiment 1, the sofa legs 11 are star-shaped chair legs without wheels. Of course, in other embodiments, chair legs with wheels may also be used, and the shape is not limited to the star shape.

[0046] A leg driving member 6 is hinged between the iron frame body 2 and the leg extension assembly 4, and a backrest driving member 7 is hinged between the iron frame body 2 and the backrest assembly 3, so that the leg extension assembly 4 and the backrest assembly 3 can be controlled separately, thereby realizing the transition between multiple postures. Specifically, in this embodiment 1, the front end of the backrest driving member 7 is hinged to the middle part of the first support rod 233, and the rear end of the backrest driving member 7 is hinged to the backrest assembly 3; the front end of the leg driving member 6 is hinged to the leg extension assembly 4, and the rear end of the leg driving member 6 is hinged to the middle part of the second support rod 234. The leg driving member 6 and the backrest driving member 7 are spaced apart, so they do not affect each other and are driven independently.

[0047] The leg extension assembly 4 includes a first adjustment rod 41, a second adjustment rod 42, a third adjustment rod 43, a fourth adjustment rod 44 and a footrest connecting rod group 45, wherein the rear end of the first adjustment rod 41 is hinged to the iron frame body 2, the front end of the first adjustment rod 41 is hinged to the rear end of the second adjustment rod 42, the front end of the second adjustment rod 42 is hinged to the footrest connecting rod group 45, the rear end of the third adjustment rod 43 is hinged to the iron frame body 2, the front end of the third adjustment rod 43 is hinged to the rear end of the fourth adjustment rod 44, and the front end of the fourth adjustment rod 44 is hinged to the footrest connecting rod group 45; wherein the middle part of the second adjustment rod 42 is hinged to the middle part of the third adjustment rod 43, ensuring the stability of the leg extension assembly 4 during the extension process. The hinge between the middle part of the second adjustment rod 42 and the middle part of the third adjustment rod 43 provides a stable support point for the entire assembly, preventing shaking or deformation during the extension process. Preferably, the leg extension components 4 are provided with two groups, and a leg synchronization rod 46 is provided between the two groups, and a leg driving member 6 is provided between the leg synchronization rod 46 and the second support frame 23, so that the two groups of leg extension components 4 can be adjusted simultaneously and synchronously, ensuring the consistency of the leg support on both sides and avoiding the situation where one side is high and the other side is low during the adjustment process, thereby improving the user experience.

[0048] The backrest assembly 3 includes a backrest support rod 31 and a backrest member 32. The front end of the backrest support rod 31 is connected to the iron frame body 2, and the middle part of the backrest member 32 is hinged to the rear end of the backrest support rod 31. The tilt angle of the backrest can be adjusted according to personal preferences and comfort requirements to obtain the best back support effect. Similarly, the backrest assembly 3 is provided with two groups, and a backrest synchronization rod 33 is provided between the two groups. A backrest driving member 7 is provided 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, which not only improves the aesthetics, stability and use efficiency of the sofa, but also enhances the user's comfort and personalized experience.

[0049] When in use, the leg extension component 4 and the backrest component 3 can be adjusted separately through the separate leg drive 6 and the backrest drive 7, so as to realize the sitting position, lying position, TV position and sitting and lying position of the seat, and the main drive 5 can adjust the overall inclination angle of the iron frame body 2, so that the user can achieve zero power adjustment in the process of adjusting the seat posture conversion, greatly improving the comfort of the seat. It should be noted that the leg drive 6, the backrest drive 7 and the main drive 5 use electric push rods. In other embodiments, other drive devices can also be used, which is not specifically limited in this embodiment.

[0050] In summary, the zero-gravity sofa iron frame provided by the utility model has the following technical effects:

[0051] 1. Simplified structure and reduced cost: This design uses a single main drive member 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 parts, thereby reducing the difficulty of maintenance and installation.

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

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

[0054] 4. Improve comfort and health benefits: Zero-gravity sofas effectively disperse body pressure and reduce fatigue caused by sitting for a long time by simulating the natural posture of the human body in a zero-gravity environment. This design helps to improve the comfort of users and may have a positive impact on preventing and improving health problems related to sitting for a long time.

[0055] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A zero-gravity sofa iron frame, characterized in that: include: Support base (1); An iron frame body (2), wherein the iron frame body (2) is hingedly connected to the supporting base (1); A backrest assembly (3), wherein the backrest assembly (3) is hingedly connected to the iron frame body (2); A leg extension component (4), wherein the leg extension component (4) is hinged to the iron frame body (2); A main driving member (5), the main driving member (5) is used to adjust the hinge angle between the iron frame body (2) and the support base (1), and the main driving member (5) adjusts the hinge angle between the iron frame body (2) and the support base (1) within a range of 6°-25°.

2. The zero-gravity sofa iron frame according to claim 1, characterized in that: The iron frame body (2) comprises: Sofa assembly frame (21); A first supporting frame (22), the first supporting frame (22) being assembled on the sofa assembly frame (21), the first supporting frame (22) being hinged to one end of the main driving member (5); A second supporting frame (23), wherein the second supporting frame (23) is assembled on the sofa assembly frame (21), and the first supporting frame (22) and the second supporting frame (23) are spaced apart from each other, and the second supporting frame (23) is hinged to the supporting base (1).

3. A zero-gravity sofa iron frame according to claim 1 or 2, characterized in that: A leg driving component (6) is hingedly connected between the iron frame body (2) and the leg extension component (4), and a backrest driving component (7) is hingedly connected between the iron frame body (2) and the backrest component (3).

4. The zero-gravity sofa iron frame according to claim 2, characterized in that: The first support frame (22) is at least partially bent in the direction of the support base (1) to mount a first main drive member hinge portion (221) hinged to one end of the main drive member (5).

5. The zero-gravity sofa iron frame according to claim 1, characterized in that: The support base (1) comprises: Sofa legs (11); A base hinge (12), wherein the base hinge (12) is mounted above the sofa leg (11), and the iron frame body (2) is hinged to the base hinge (12); A second main driving member hinge part (13), the second main driving member hinge part (13) is connected to the base hinge part (12), and the other end of the main driving member (5) is hinged to the second main driving member hinge part (13).

6. The zero-gravity sofa iron frame according to claim 2, characterized in that: The leg extension assembly (4) comprises a first adjustment rod (41), a second adjustment rod (42), a third adjustment rod (43), a fourth adjustment rod (44) and a footrest connecting rod group (45), wherein the rear end of the first adjustment rod (41) is hinged to the iron frame body (2), the front end of the first adjustment rod (41) is hinged to the rear end of the second adjustment rod (42), the front end of the second adjustment rod (42) is hinged to the footrest connecting rod group (45), the rear end of the third adjustment rod (43) is hinged to the iron frame body (2), the front end of the third adjustment rod (43) is hinged to the rear end of the fourth adjustment rod (44), and the front end of the fourth adjustment rod (44) is hinged to the footrest connecting rod group (45); wherein the middle part of the second adjustment rod (42) is hinged to the middle part of the third adjustment rod (43).

7. The zero-gravity sofa iron frame according to claim 6, characterized in that: The leg extension assembly (4) is provided with two groups, and a leg synchronization rod (46) is provided between the two groups, and a leg driving member (6) is provided between the leg synchronization rod (46) and the second supporting frame (23).

8. The zero-gravity sofa iron frame according to claim 2, characterized in that: The backrest assembly (3) comprises: A backrest support rod (31), the front end of which is connected to the iron frame body (2); A backrest member (32), wherein the middle portion of the backrest member (32) is hinged to the rear end of the backrest support rod (31).

9. The zero-gravity sofa iron frame according to claim 8, characterized in that: The backrest assembly (3) is provided with two groups, and a backrest synchronization rod (33) is provided between the two groups, and a backrest driving member (7) is provided between the backrest synchronization rod (33) and the second supporting frame (23).

10. The zero-gravity sofa iron frame according to claim 2, characterized in that: The second supporting frame (23) comprises: A first side panel (231), wherein the first side panel (231) is connected to the sofa assembly frame (21); A second side panel (232), wherein the second side panel (232) is connected to the sofa assembly frame (21); A first support rod (233), the first support rod (233) being 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